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path: root/drivers/net/wireless/mwifiex/join.c
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-rw-r--r--drivers/net/wireless/mwifiex/join.c1423
1 files changed, 1423 insertions, 0 deletions
diff --git a/drivers/net/wireless/mwifiex/join.c b/drivers/net/wireless/mwifiex/join.c
new file mode 100644
index 000000000000..5eab3dc29b1c
--- /dev/null
+++ b/drivers/net/wireless/mwifiex/join.c
@@ -0,0 +1,1423 @@
1/*
2 * Marvell Wireless LAN device driver: association and ad-hoc start/join
3 *
4 * Copyright (C) 2011, Marvell International Ltd.
5 *
6 * This software file (the "File") is distributed by Marvell International
7 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
8 * (the "License"). You may use, redistribute and/or modify this File in
9 * accordance with the terms and conditions of the License, a copy of which
10 * is available by writing to the Free Software Foundation, Inc.,
11 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the
12 * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
13 *
14 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
15 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
16 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
17 * this warranty disclaimer.
18 */
19
20#include "decl.h"
21#include "ioctl.h"
22#include "util.h"
23#include "fw.h"
24#include "main.h"
25#include "wmm.h"
26#include "11n.h"
27
28#define CAPINFO_MASK (~(BIT(15) | BIT(14) | BIT(12) | BIT(11) | BIT(9)))
29
30/*
31 * Append a generic IE as a pass through TLV to a TLV buffer.
32 *
33 * This function is called from the network join command preparation routine.
34 *
35 * If the IE buffer has been setup by the application, this routine appends
36 * the buffer as a pass through TLV type to the request.
37 */
38static int
39mwifiex_cmd_append_generic_ie(struct mwifiex_private *priv, u8 **buffer)
40{
41 int ret_len = 0;
42 struct mwifiex_ie_types_header ie_header;
43
44 /* Null Checks */
45 if (!buffer)
46 return 0;
47 if (!(*buffer))
48 return 0;
49
50 /*
51 * If there is a generic ie buffer setup, append it to the return
52 * parameter buffer pointer.
53 */
54 if (priv->gen_ie_buf_len) {
55 dev_dbg(priv->adapter->dev, "info: %s: append generic %d to %p\n",
56 __func__, priv->gen_ie_buf_len, *buffer);
57
58 /* Wrap the generic IE buffer with a pass through TLV type */
59 ie_header.type = cpu_to_le16(TLV_TYPE_PASSTHROUGH);
60 ie_header.len = cpu_to_le16(priv->gen_ie_buf_len);
61 memcpy(*buffer, &ie_header, sizeof(ie_header));
62
63 /* Increment the return size and the return buffer pointer
64 param */
65 *buffer += sizeof(ie_header);
66 ret_len += sizeof(ie_header);
67
68 /* Copy the generic IE buffer to the output buffer, advance
69 pointer */
70 memcpy(*buffer, priv->gen_ie_buf, priv->gen_ie_buf_len);
71
72 /* Increment the return size and the return buffer pointer
73 param */
74 *buffer += priv->gen_ie_buf_len;
75 ret_len += priv->gen_ie_buf_len;
76
77 /* Reset the generic IE buffer */
78 priv->gen_ie_buf_len = 0;
79 }
80
81 /* return the length appended to the buffer */
82 return ret_len;
83}
84
85/*
86 * Append TSF tracking info from the scan table for the target AP.
87 *
88 * This function is called from the network join command preparation routine.
89 *
90 * The TSF table TSF sent to the firmware contains two TSF values:
91 * - The TSF of the target AP from its previous beacon/probe response
92 * - The TSF timestamp of our local MAC at the time we observed the
93 * beacon/probe response.
94 *
95 * The firmware uses the timestamp values to set an initial TSF value
96 * in the MAC for the new association after a reassociation attempt.
97 */
98static int
99mwifiex_cmd_append_tsf_tlv(struct mwifiex_private *priv, u8 **buffer,
100 struct mwifiex_bssdescriptor *bss_desc)
101{
102 struct mwifiex_ie_types_tsf_timestamp tsf_tlv;
103 __le64 tsf_val;
104
105 /* Null Checks */
106 if (buffer == NULL)
107 return 0;
108 if (*buffer == NULL)
109 return 0;
110
111 memset(&tsf_tlv, 0x00, sizeof(struct mwifiex_ie_types_tsf_timestamp));
112
113 tsf_tlv.header.type = cpu_to_le16(TLV_TYPE_TSFTIMESTAMP);
114 tsf_tlv.header.len = cpu_to_le16(2 * sizeof(tsf_val));
115
116 memcpy(*buffer, &tsf_tlv, sizeof(tsf_tlv.header));
117 *buffer += sizeof(tsf_tlv.header);
118
119 /* TSF at the time when beacon/probe_response was received */
120 tsf_val = cpu_to_le64(bss_desc->network_tsf);
121 memcpy(*buffer, &tsf_val, sizeof(tsf_val));
122 *buffer += sizeof(tsf_val);
123
124 memcpy(&tsf_val, bss_desc->time_stamp, sizeof(tsf_val));
125
126 dev_dbg(priv->adapter->dev, "info: %s: TSF offset calc: %016llx - "
127 "%016llx\n", __func__, tsf_val, bss_desc->network_tsf);
128
129 memcpy(*buffer, &tsf_val, sizeof(tsf_val));
130 *buffer += sizeof(tsf_val);
131
132 return sizeof(tsf_tlv.header) + (2 * sizeof(tsf_val));
133}
134
135/*
136 * This function finds out the common rates between rate1 and rate2.
137 *
138 * It will fill common rates in rate1 as output if found.
139 *
140 * NOTE: Setting the MSB of the basic rates needs to be taken
141 * care of, either before or after calling this function.
142 */
143static int mwifiex_get_common_rates(struct mwifiex_private *priv, u8 *rate1,
144 u32 rate1_size, u8 *rate2, u32 rate2_size)
145{
146 int ret;
147 u8 *ptr = rate1, *tmp;
148 u32 i, j;
149
150 tmp = kmalloc(rate1_size, GFP_KERNEL);
151 if (!tmp) {
152 dev_err(priv->adapter->dev, "failed to alloc tmp buf\n");
153 return -ENOMEM;
154 }
155
156 memcpy(tmp, rate1, rate1_size);
157 memset(rate1, 0, rate1_size);
158
159 for (i = 0; rate2[i] && i < rate2_size; i++) {
160 for (j = 0; tmp[j] && j < rate1_size; j++) {
161 /* Check common rate, excluding the bit for
162 basic rate */
163 if ((rate2[i] & 0x7F) == (tmp[j] & 0x7F)) {
164 *rate1++ = tmp[j];
165 break;
166 }
167 }
168 }
169
170 dev_dbg(priv->adapter->dev, "info: Tx data rate set to %#x\n",
171 priv->data_rate);
172
173 if (!priv->is_data_rate_auto) {
174 while (*ptr) {
175 if ((*ptr & 0x7f) == priv->data_rate) {
176 ret = 0;
177 goto done;
178 }
179 ptr++;
180 }
181 dev_err(priv->adapter->dev, "previously set fixed data rate %#x"
182 " is not compatible with the network\n",
183 priv->data_rate);
184
185 ret = -1;
186 goto done;
187 }
188
189 ret = 0;
190done:
191 kfree(tmp);
192 return ret;
193}
194
195/*
196 * This function creates the intersection of the rates supported by a
197 * target BSS and our adapter settings for use in an assoc/join command.
198 */
199static int
200mwifiex_setup_rates_from_bssdesc(struct mwifiex_private *priv,
201 struct mwifiex_bssdescriptor *bss_desc,
202 u8 *out_rates, u32 *out_rates_size)
203{
204 u8 card_rates[MWIFIEX_SUPPORTED_RATES];
205 u32 card_rates_size;
206
207 /* Copy AP supported rates */
208 memcpy(out_rates, bss_desc->supported_rates, MWIFIEX_SUPPORTED_RATES);
209 /* Get the STA supported rates */
210 card_rates_size = mwifiex_get_active_data_rates(priv, card_rates);
211 /* Get the common rates between AP and STA supported rates */
212 if (mwifiex_get_common_rates(priv, out_rates, MWIFIEX_SUPPORTED_RATES,
213 card_rates, card_rates_size)) {
214 *out_rates_size = 0;
215 dev_err(priv->adapter->dev, "%s: cannot get common rates\n",
216 __func__);
217 return -1;
218 }
219
220 *out_rates_size =
221 min_t(size_t, strlen(out_rates), MWIFIEX_SUPPORTED_RATES);
222
223 return 0;
224}
225
226/*
227 * This function updates the scan entry TSF timestamps to reflect
228 * a new association.
229 */
230static void
231mwifiex_update_tsf_timestamps(struct mwifiex_private *priv,
232 struct mwifiex_bssdescriptor *new_bss_desc)
233{
234 struct mwifiex_adapter *adapter = priv->adapter;
235 u32 table_idx;
236 long long new_tsf_base;
237 signed long long tsf_delta;
238
239 memcpy(&new_tsf_base, new_bss_desc->time_stamp, sizeof(new_tsf_base));
240
241 tsf_delta = new_tsf_base - new_bss_desc->network_tsf;
242
243 dev_dbg(adapter->dev, "info: TSF: update TSF timestamps, "
244 "0x%016llx -> 0x%016llx\n",
245 new_bss_desc->network_tsf, new_tsf_base);
246
247 for (table_idx = 0; table_idx < adapter->num_in_scan_table;
248 table_idx++)
249 adapter->scan_table[table_idx].network_tsf += tsf_delta;
250}
251
252/*
253 * This function appends a WAPI IE.
254 *
255 * This function is called from the network join command preparation routine.
256 *
257 * If the IE buffer has been setup by the application, this routine appends
258 * the buffer as a WAPI TLV type to the request.
259 */
260static int
261mwifiex_cmd_append_wapi_ie(struct mwifiex_private *priv, u8 **buffer)
262{
263 int retLen = 0;
264 struct mwifiex_ie_types_header ie_header;
265
266 /* Null Checks */
267 if (buffer == NULL)
268 return 0;
269 if (*buffer == NULL)
270 return 0;
271
272 /*
273 * If there is a wapi ie buffer setup, append it to the return
274 * parameter buffer pointer.
275 */
276 if (priv->wapi_ie_len) {
277 dev_dbg(priv->adapter->dev, "cmd: append wapi ie %d to %p\n",
278 priv->wapi_ie_len, *buffer);
279
280 /* Wrap the generic IE buffer with a pass through TLV type */
281 ie_header.type = cpu_to_le16(TLV_TYPE_WAPI_IE);
282 ie_header.len = cpu_to_le16(priv->wapi_ie_len);
283 memcpy(*buffer, &ie_header, sizeof(ie_header));
284
285 /* Increment the return size and the return buffer pointer
286 param */
287 *buffer += sizeof(ie_header);
288 retLen += sizeof(ie_header);
289
290 /* Copy the wapi IE buffer to the output buffer, advance
291 pointer */
292 memcpy(*buffer, priv->wapi_ie, priv->wapi_ie_len);
293
294 /* Increment the return size and the return buffer pointer
295 param */
296 *buffer += priv->wapi_ie_len;
297 retLen += priv->wapi_ie_len;
298
299 }
300 /* return the length appended to the buffer */
301 return retLen;
302}
303
304/*
305 * This function appends rsn ie tlv for wpa/wpa2 security modes.
306 * It is called from the network join command preparation routine.
307 */
308static int mwifiex_append_rsn_ie_wpa_wpa2(struct mwifiex_private *priv,
309 u8 **buffer)
310{
311 struct mwifiex_ie_types_rsn_param_set *rsn_ie_tlv;
312 int rsn_ie_len;
313
314 if (!buffer || !(*buffer))
315 return 0;
316
317 rsn_ie_tlv = (struct mwifiex_ie_types_rsn_param_set *) (*buffer);
318 rsn_ie_tlv->header.type = cpu_to_le16((u16) priv->wpa_ie[0]);
319 rsn_ie_tlv->header.type = cpu_to_le16(
320 le16_to_cpu(rsn_ie_tlv->header.type) & 0x00FF);
321 rsn_ie_tlv->header.len = cpu_to_le16((u16) priv->wpa_ie[1]);
322 rsn_ie_tlv->header.len = cpu_to_le16(le16_to_cpu(rsn_ie_tlv->header.len)
323 & 0x00FF);
324 if (le16_to_cpu(rsn_ie_tlv->header.len) <= (sizeof(priv->wpa_ie) - 2))
325 memcpy(rsn_ie_tlv->rsn_ie, &priv->wpa_ie[2],
326 le16_to_cpu(rsn_ie_tlv->header.len));
327 else
328 return -1;
329
330 rsn_ie_len = sizeof(rsn_ie_tlv->header) +
331 le16_to_cpu(rsn_ie_tlv->header.len);
332 *buffer += rsn_ie_len;
333
334 return rsn_ie_len;
335}
336
337/*
338 * This function prepares command for association.
339 *
340 * This sets the following parameters -
341 * - Peer MAC address
342 * - Listen interval
343 * - Beacon interval
344 * - Capability information
345 *
346 * ...and the following TLVs, as required -
347 * - SSID TLV
348 * - PHY TLV
349 * - SS TLV
350 * - Rates TLV
351 * - Authentication TLV
352 * - Channel TLV
353 * - WPA/WPA2 IE
354 * - 11n TLV
355 * - Vendor specific TLV
356 * - WMM TLV
357 * - WAPI IE
358 * - Generic IE
359 * - TSF TLV
360 *
361 * Preparation also includes -
362 * - Setting command ID and proper size
363 * - Ensuring correct endian-ness
364 */
365int mwifiex_cmd_802_11_associate(struct mwifiex_private *priv,
366 struct host_cmd_ds_command *cmd,
367 void *data_buf)
368{
369 struct host_cmd_ds_802_11_associate *assoc = &cmd->params.associate;
370 struct mwifiex_bssdescriptor *bss_desc;
371 struct mwifiex_ie_types_ssid_param_set *ssid_tlv;
372 struct mwifiex_ie_types_phy_param_set *phy_tlv;
373 struct mwifiex_ie_types_ss_param_set *ss_tlv;
374 struct mwifiex_ie_types_rates_param_set *rates_tlv;
375 struct mwifiex_ie_types_auth_type *auth_tlv;
376 struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
377 u8 rates[MWIFIEX_SUPPORTED_RATES];
378 u32 rates_size;
379 u16 tmp_cap;
380 u8 *pos;
381 int rsn_ie_len = 0;
382
383 bss_desc = (struct mwifiex_bssdescriptor *) data_buf;
384 pos = (u8 *) assoc;
385
386 mwifiex_cfg_tx_buf(priv, bss_desc);
387
388 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_ASSOCIATE);
389
390 /* Save so we know which BSS Desc to use in the response handler */
391 priv->attempted_bss_desc = bss_desc;
392
393 memcpy(assoc->peer_sta_addr,
394 bss_desc->mac_address, sizeof(assoc->peer_sta_addr));
395 pos += sizeof(assoc->peer_sta_addr);
396
397 /* Set the listen interval */
398 assoc->listen_interval = cpu_to_le16(priv->listen_interval);
399 /* Set the beacon period */
400 assoc->beacon_period = cpu_to_le16(bss_desc->beacon_period);
401
402 pos += sizeof(assoc->cap_info_bitmap);
403 pos += sizeof(assoc->listen_interval);
404 pos += sizeof(assoc->beacon_period);
405 pos += sizeof(assoc->dtim_period);
406
407 ssid_tlv = (struct mwifiex_ie_types_ssid_param_set *) pos;
408 ssid_tlv->header.type = cpu_to_le16(WLAN_EID_SSID);
409 ssid_tlv->header.len = cpu_to_le16((u16) bss_desc->ssid.ssid_len);
410 memcpy(ssid_tlv->ssid, bss_desc->ssid.ssid,
411 le16_to_cpu(ssid_tlv->header.len));
412 pos += sizeof(ssid_tlv->header) + le16_to_cpu(ssid_tlv->header.len);
413
414 phy_tlv = (struct mwifiex_ie_types_phy_param_set *) pos;
415 phy_tlv->header.type = cpu_to_le16(WLAN_EID_DS_PARAMS);
416 phy_tlv->header.len = cpu_to_le16(sizeof(phy_tlv->fh_ds.ds_param_set));
417 memcpy(&phy_tlv->fh_ds.ds_param_set,
418 &bss_desc->phy_param_set.ds_param_set.current_chan,
419 sizeof(phy_tlv->fh_ds.ds_param_set));
420 pos += sizeof(phy_tlv->header) + le16_to_cpu(phy_tlv->header.len);
421
422 ss_tlv = (struct mwifiex_ie_types_ss_param_set *) pos;
423 ss_tlv->header.type = cpu_to_le16(WLAN_EID_CF_PARAMS);
424 ss_tlv->header.len = cpu_to_le16(sizeof(ss_tlv->cf_ibss.cf_param_set));
425 pos += sizeof(ss_tlv->header) + le16_to_cpu(ss_tlv->header.len);
426
427 /* Get the common rates supported between the driver and the BSS Desc */
428 if (mwifiex_setup_rates_from_bssdesc
429 (priv, bss_desc, rates, &rates_size))
430 return -1;
431
432 /* Save the data rates into Current BSS state structure */
433 priv->curr_bss_params.num_of_rates = rates_size;
434 memcpy(&priv->curr_bss_params.data_rates, rates, rates_size);
435
436 /* Setup the Rates TLV in the association command */
437 rates_tlv = (struct mwifiex_ie_types_rates_param_set *) pos;
438 rates_tlv->header.type = cpu_to_le16(WLAN_EID_SUPP_RATES);
439 rates_tlv->header.len = cpu_to_le16((u16) rates_size);
440 memcpy(rates_tlv->rates, rates, rates_size);
441 pos += sizeof(rates_tlv->header) + rates_size;
442 dev_dbg(priv->adapter->dev, "info: ASSOC_CMD: rates size = %d\n",
443 rates_size);
444
445 /* Add the Authentication type to be used for Auth frames */
446 auth_tlv = (struct mwifiex_ie_types_auth_type *) pos;
447 auth_tlv->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
448 auth_tlv->header.len = cpu_to_le16(sizeof(auth_tlv->auth_type));
449 if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_ENABLED)
450 auth_tlv->auth_type = cpu_to_le16(
451 (u16) priv->sec_info.authentication_mode);
452 else
453 auth_tlv->auth_type = cpu_to_le16(NL80211_AUTHTYPE_OPEN_SYSTEM);
454
455 pos += sizeof(auth_tlv->header) + le16_to_cpu(auth_tlv->header.len);
456
457 if (IS_SUPPORT_MULTI_BANDS(priv->adapter)
458 && !(ISSUPP_11NENABLED(priv->adapter->fw_cap_info)
459 && (!bss_desc->disable_11n)
460 && (priv->adapter->config_bands & BAND_GN
461 || priv->adapter->config_bands & BAND_AN)
462 && (bss_desc->bcn_ht_cap)
463 )
464 ) {
465 /* Append a channel TLV for the channel the attempted AP was
466 found on */
467 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
468 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
469 chan_tlv->header.len =
470 cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
471
472 memset(chan_tlv->chan_scan_param, 0x00,
473 sizeof(struct mwifiex_chan_scan_param_set));
474 chan_tlv->chan_scan_param[0].chan_number =
475 (bss_desc->phy_param_set.ds_param_set.current_chan);
476 dev_dbg(priv->adapter->dev, "info: Assoc: TLV Chan = %d\n",
477 chan_tlv->chan_scan_param[0].chan_number);
478
479 chan_tlv->chan_scan_param[0].radio_type =
480 mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
481
482 dev_dbg(priv->adapter->dev, "info: Assoc: TLV Band = %d\n",
483 chan_tlv->chan_scan_param[0].radio_type);
484 pos += sizeof(chan_tlv->header) +
485 sizeof(struct mwifiex_chan_scan_param_set);
486 }
487
488 if (!priv->wps.session_enable) {
489 if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
490 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
491
492 if (rsn_ie_len == -1)
493 return -1;
494 }
495
496 if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info)
497 && (!bss_desc->disable_11n)
498 && (priv->adapter->config_bands & BAND_GN
499 || priv->adapter->config_bands & BAND_AN))
500 mwifiex_cmd_append_11n_tlv(priv, bss_desc, &pos);
501
502 /* Append vendor specific IE TLV */
503 mwifiex_cmd_append_vsie_tlv(priv, MWIFIEX_VSIE_MASK_ASSOC, &pos);
504
505 mwifiex_wmm_process_association_req(priv, &pos, &bss_desc->wmm_ie,
506 bss_desc->bcn_ht_cap);
507 if (priv->sec_info.wapi_enabled && priv->wapi_ie_len)
508 mwifiex_cmd_append_wapi_ie(priv, &pos);
509
510
511 mwifiex_cmd_append_generic_ie(priv, &pos);
512
513 mwifiex_cmd_append_tsf_tlv(priv, &pos, bss_desc);
514
515 cmd->size = cpu_to_le16((u16) (pos - (u8 *) assoc) + S_DS_GEN);
516
517 /* Set the Capability info at last */
518 tmp_cap = bss_desc->cap_info_bitmap;
519
520 if (priv->adapter->config_bands == BAND_B)
521 tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
522
523 tmp_cap &= CAPINFO_MASK;
524 dev_dbg(priv->adapter->dev, "info: ASSOC_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n",
525 tmp_cap, CAPINFO_MASK);
526 assoc->cap_info_bitmap = cpu_to_le16(tmp_cap);
527
528 return 0;
529}
530
531/*
532 * Association firmware command response handler
533 *
534 * The response buffer for the association command has the following
535 * memory layout.
536 *
537 * For cases where an association response was not received (indicated
538 * by the CapInfo and AId field):
539 *
540 * .------------------------------------------------------------.
541 * | Header(4 * sizeof(t_u16)): Standard command response hdr |
542 * .------------------------------------------------------------.
543 * | cap_info/Error Return(t_u16): |
544 * | 0xFFFF(-1): Internal error |
545 * | 0xFFFE(-2): Authentication unhandled message |
546 * | 0xFFFD(-3): Authentication refused |
547 * | 0xFFFC(-4): Timeout waiting for AP response |
548 * .------------------------------------------------------------.
549 * | status_code(t_u16): |
550 * | If cap_info is -1: |
551 * | An internal firmware failure prevented the |
552 * | command from being processed. The status_code |
553 * | will be set to 1. |
554 * | |
555 * | If cap_info is -2: |
556 * | An authentication frame was received but was |
557 * | not handled by the firmware. IEEE Status |
558 * | code for the failure is returned. |
559 * | |
560 * | If cap_info is -3: |
561 * | An authentication frame was received and the |
562 * | status_code is the IEEE Status reported in the |
563 * | response. |
564 * | |
565 * | If cap_info is -4: |
566 * | (1) Association response timeout |
567 * | (2) Authentication response timeout |
568 * .------------------------------------------------------------.
569 * | a_id(t_u16): 0xFFFF |
570 * .------------------------------------------------------------.
571 *
572 *
573 * For cases where an association response was received, the IEEE
574 * standard association response frame is returned:
575 *
576 * .------------------------------------------------------------.
577 * | Header(4 * sizeof(t_u16)): Standard command response hdr |
578 * .------------------------------------------------------------.
579 * | cap_info(t_u16): IEEE Capability |
580 * .------------------------------------------------------------.
581 * | status_code(t_u16): IEEE Status Code |
582 * .------------------------------------------------------------.
583 * | a_id(t_u16): IEEE Association ID |
584 * .------------------------------------------------------------.
585 * | IEEE IEs(variable): Any received IEs comprising the |
586 * | remaining portion of a received |
587 * | association response frame. |
588 * .------------------------------------------------------------.
589 *
590 * For simplistic handling, the status_code field can be used to determine
591 * an association success (0) or failure (non-zero).
592 */
593int mwifiex_ret_802_11_associate(struct mwifiex_private *priv,
594 struct host_cmd_ds_command *resp)
595{
596 struct mwifiex_adapter *adapter = priv->adapter;
597 int ret = 0;
598 struct ieee_types_assoc_rsp *assoc_rsp;
599 struct mwifiex_bssdescriptor *bss_desc;
600 u8 enable_data = true;
601
602 assoc_rsp = (struct ieee_types_assoc_rsp *) &resp->params;
603
604 priv->assoc_rsp_size = min(le16_to_cpu(resp->size) - S_DS_GEN,
605 sizeof(priv->assoc_rsp_buf));
606
607 memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size);
608
609 if (le16_to_cpu(assoc_rsp->status_code)) {
610 priv->adapter->dbg.num_cmd_assoc_failure++;
611 dev_err(priv->adapter->dev, "ASSOC_RESP: association failed, "
612 "status code = %d, error = 0x%x, a_id = 0x%x\n",
613 le16_to_cpu(assoc_rsp->status_code),
614 le16_to_cpu(assoc_rsp->cap_info_bitmap),
615 le16_to_cpu(assoc_rsp->a_id));
616
617 ret = -1;
618 goto done;
619 }
620
621 /* Send a Media Connected event, according to the Spec */
622 priv->media_connected = true;
623
624 priv->adapter->ps_state = PS_STATE_AWAKE;
625 priv->adapter->pps_uapsd_mode = false;
626 priv->adapter->tx_lock_flag = false;
627
628 /* Set the attempted BSSID Index to current */
629 bss_desc = priv->attempted_bss_desc;
630
631 dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: %s\n",
632 bss_desc->ssid.ssid);
633
634 /* Make a copy of current BSSID descriptor */
635 memcpy(&priv->curr_bss_params.bss_descriptor,
636 bss_desc, sizeof(struct mwifiex_bssdescriptor));
637
638 /* Update curr_bss_params */
639 priv->curr_bss_params.bss_descriptor.channel
640 = bss_desc->phy_param_set.ds_param_set.current_chan;
641
642 priv->curr_bss_params.band = (u8) bss_desc->bss_band;
643
644 /*
645 * Adjust the timestamps in the scan table to be relative to the newly
646 * associated AP's TSF
647 */
648 mwifiex_update_tsf_timestamps(priv, bss_desc);
649
650 if (bss_desc->wmm_ie.vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC)
651 priv->curr_bss_params.wmm_enabled = true;
652 else
653 priv->curr_bss_params.wmm_enabled = false;
654
655 if ((priv->wmm_required || bss_desc->bcn_ht_cap)
656 && priv->curr_bss_params.wmm_enabled)
657 priv->wmm_enabled = true;
658 else
659 priv->wmm_enabled = false;
660
661 priv->curr_bss_params.wmm_uapsd_enabled = false;
662
663 if (priv->wmm_enabled)
664 priv->curr_bss_params.wmm_uapsd_enabled
665 = ((bss_desc->wmm_ie.qos_info_bitmap &
666 IEEE80211_WMM_IE_AP_QOSINFO_UAPSD) ? 1 : 0);
667
668 dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: curr_pkt_filter is %#x\n",
669 priv->curr_pkt_filter);
670 if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
671 priv->wpa_is_gtk_set = false;
672
673 if (priv->wmm_enabled) {
674 /* Don't re-enable carrier until we get the WMM_GET_STATUS
675 event */
676 enable_data = false;
677 } else {
678 /* Since WMM is not enabled, setup the queues with the
679 defaults */
680 mwifiex_wmm_setup_queue_priorities(priv, NULL);
681 mwifiex_wmm_setup_ac_downgrade(priv);
682 }
683
684 if (enable_data)
685 dev_dbg(priv->adapter->dev,
686 "info: post association, re-enabling data flow\n");
687
688 /* Reset SNR/NF/RSSI values */
689 priv->data_rssi_last = 0;
690 priv->data_nf_last = 0;
691 priv->data_rssi_avg = 0;
692 priv->data_nf_avg = 0;
693 priv->bcn_rssi_last = 0;
694 priv->bcn_nf_last = 0;
695 priv->bcn_rssi_avg = 0;
696 priv->bcn_nf_avg = 0;
697 priv->rxpd_rate = 0;
698 priv->rxpd_htinfo = 0;
699
700 mwifiex_save_curr_bcn(priv);
701
702 priv->adapter->dbg.num_cmd_assoc_success++;
703
704 dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: associated\n");
705
706 /* Add the ra_list here for infra mode as there will be only 1 ra
707 always */
708 mwifiex_ralist_add(priv,
709 priv->curr_bss_params.bss_descriptor.mac_address);
710
711 if (!netif_carrier_ok(priv->netdev))
712 netif_carrier_on(priv->netdev);
713 if (netif_queue_stopped(priv->netdev))
714 netif_wake_queue(priv->netdev);
715
716 if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
717 priv->scan_block = true;
718
719done:
720 /* Need to indicate IOCTL complete */
721 if (adapter->curr_cmd->wait_q_enabled) {
722 if (ret)
723 adapter->cmd_wait_q.status = -1;
724 else
725 adapter->cmd_wait_q.status = 0;
726 }
727
728 return ret;
729}
730
731/*
732 * This function prepares command for ad-hoc start.
733 *
734 * Driver will fill up SSID, BSS mode, IBSS parameters, physical
735 * parameters, probe delay, and capability information. Firmware
736 * will fill up beacon period, basic rates and operational rates.
737 *
738 * In addition, the following TLVs are added -
739 * - Channel TLV
740 * - Vendor specific IE
741 * - WPA/WPA2 IE
742 * - HT Capabilities IE
743 * - HT Information IE
744 *
745 * Preparation also includes -
746 * - Setting command ID and proper size
747 * - Ensuring correct endian-ness
748 */
749int
750mwifiex_cmd_802_11_ad_hoc_start(struct mwifiex_private *priv,
751 struct host_cmd_ds_command *cmd, void *data_buf)
752{
753 int rsn_ie_len = 0;
754 struct mwifiex_adapter *adapter = priv->adapter;
755 struct host_cmd_ds_802_11_ad_hoc_start *adhoc_start =
756 &cmd->params.adhoc_start;
757 struct mwifiex_bssdescriptor *bss_desc;
758 u32 cmd_append_size = 0;
759 u32 i;
760 u16 tmp_cap;
761 uint16_t ht_cap_info;
762 struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
763
764 struct mwifiex_ie_types_htcap *ht_cap;
765 struct mwifiex_ie_types_htinfo *ht_info;
766 u8 *pos = (u8 *) adhoc_start +
767 sizeof(struct host_cmd_ds_802_11_ad_hoc_start);
768
769 if (!adapter)
770 return -1;
771
772 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_START);
773
774 bss_desc = &priv->curr_bss_params.bss_descriptor;
775 priv->attempted_bss_desc = bss_desc;
776
777 /*
778 * Fill in the parameters for 2 data structures:
779 * 1. struct host_cmd_ds_802_11_ad_hoc_start command
780 * 2. bss_desc
781 * Driver will fill up SSID, bss_mode,IBSS param, Physical Param,
782 * probe delay, and Cap info.
783 * Firmware will fill up beacon period, Basic rates
784 * and operational rates.
785 */
786
787 memset(adhoc_start->ssid, 0, IEEE80211_MAX_SSID_LEN);
788
789 memcpy(adhoc_start->ssid,
790 ((struct mwifiex_802_11_ssid *) data_buf)->ssid,
791 ((struct mwifiex_802_11_ssid *) data_buf)->ssid_len);
792
793 dev_dbg(adapter->dev, "info: ADHOC_S_CMD: SSID = %s\n",
794 adhoc_start->ssid);
795
796 memset(bss_desc->ssid.ssid, 0, IEEE80211_MAX_SSID_LEN);
797 memcpy(bss_desc->ssid.ssid,
798 ((struct mwifiex_802_11_ssid *) data_buf)->ssid,
799 ((struct mwifiex_802_11_ssid *) data_buf)->ssid_len);
800
801 bss_desc->ssid.ssid_len =
802 ((struct mwifiex_802_11_ssid *) data_buf)->ssid_len;
803
804 /* Set the BSS mode */
805 adhoc_start->bss_mode = HostCmd_BSS_MODE_IBSS;
806 bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
807 adhoc_start->beacon_period = cpu_to_le16(priv->beacon_period);
808 bss_desc->beacon_period = priv->beacon_period;
809
810 /* Set Physical param set */
811/* Parameter IE Id */
812#define DS_PARA_IE_ID 3
813/* Parameter IE length */
814#define DS_PARA_IE_LEN 1
815
816 adhoc_start->phy_param_set.ds_param_set.element_id = DS_PARA_IE_ID;
817 adhoc_start->phy_param_set.ds_param_set.len = DS_PARA_IE_LEN;
818
819 if (!mwifiex_get_cfp_by_band_and_channel_from_cfg80211
820 (priv, adapter->adhoc_start_band, (u16)
821 priv->adhoc_channel)) {
822 struct mwifiex_chan_freq_power *cfp;
823 cfp = mwifiex_get_cfp_by_band_and_channel_from_cfg80211(priv,
824 adapter->adhoc_start_band, FIRST_VALID_CHANNEL);
825 if (cfp)
826 priv->adhoc_channel = (u8) cfp->channel;
827 }
828
829 if (!priv->adhoc_channel) {
830 dev_err(adapter->dev, "ADHOC_S_CMD: adhoc_channel cannot be 0\n");
831 return -1;
832 }
833
834 dev_dbg(adapter->dev, "info: ADHOC_S_CMD: creating ADHOC on channel %d\n",
835 priv->adhoc_channel);
836
837 priv->curr_bss_params.bss_descriptor.channel = priv->adhoc_channel;
838 priv->curr_bss_params.band = adapter->adhoc_start_band;
839
840 bss_desc->channel = priv->adhoc_channel;
841 adhoc_start->phy_param_set.ds_param_set.current_chan =
842 priv->adhoc_channel;
843
844 memcpy(&bss_desc->phy_param_set, &adhoc_start->phy_param_set,
845 sizeof(union ieee_types_phy_param_set));
846
847 /* Set IBSS param set */
848/* IBSS parameter IE Id */
849#define IBSS_PARA_IE_ID 6
850/* IBSS parameter IE length */
851#define IBSS_PARA_IE_LEN 2
852
853 adhoc_start->ss_param_set.ibss_param_set.element_id = IBSS_PARA_IE_ID;
854 adhoc_start->ss_param_set.ibss_param_set.len = IBSS_PARA_IE_LEN;
855 adhoc_start->ss_param_set.ibss_param_set.atim_window
856 = cpu_to_le16(priv->atim_window);
857 memcpy(&bss_desc->ss_param_set, &adhoc_start->ss_param_set,
858 sizeof(union ieee_types_ss_param_set));
859
860 /* Set Capability info */
861 bss_desc->cap_info_bitmap |= WLAN_CAPABILITY_IBSS;
862 tmp_cap = le16_to_cpu(adhoc_start->cap_info_bitmap);
863 tmp_cap &= ~WLAN_CAPABILITY_ESS;
864 tmp_cap |= WLAN_CAPABILITY_IBSS;
865
866 /* Set up privacy in bss_desc */
867 if (priv->sec_info.encryption_mode) {
868 /* Ad-Hoc capability privacy on */
869 dev_dbg(adapter->dev,
870 "info: ADHOC_S_CMD: wep_status set privacy to WEP\n");
871 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_8021X_WEP;
872 tmp_cap |= WLAN_CAPABILITY_PRIVACY;
873 } else {
874 dev_dbg(adapter->dev, "info: ADHOC_S_CMD: wep_status NOT set,"
875 " setting privacy to ACCEPT ALL\n");
876 bss_desc->privacy = MWIFIEX_802_11_PRIV_FILTER_ACCEPT_ALL;
877 }
878
879 memset(adhoc_start->DataRate, 0, sizeof(adhoc_start->DataRate));
880 mwifiex_get_active_data_rates(priv, adhoc_start->DataRate);
881 if ((adapter->adhoc_start_band & BAND_G) &&
882 (priv->curr_pkt_filter & HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON)) {
883 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
884 HostCmd_ACT_GEN_SET, 0,
885 &priv->curr_pkt_filter)) {
886 dev_err(adapter->dev,
887 "ADHOC_S_CMD: G Protection config failed\n");
888 return -1;
889 }
890 }
891 /* Find the last non zero */
892 for (i = 0; i < sizeof(adhoc_start->DataRate) &&
893 adhoc_start->DataRate[i];
894 i++)
895 ;
896
897 priv->curr_bss_params.num_of_rates = i;
898
899 /* Copy the ad-hoc creating rates into Current BSS rate structure */
900 memcpy(&priv->curr_bss_params.data_rates,
901 &adhoc_start->DataRate, priv->curr_bss_params.num_of_rates);
902
903 dev_dbg(adapter->dev, "info: ADHOC_S_CMD: rates=%02x %02x %02x %02x\n",
904 adhoc_start->DataRate[0], adhoc_start->DataRate[1],
905 adhoc_start->DataRate[2], adhoc_start->DataRate[3]);
906
907 dev_dbg(adapter->dev, "info: ADHOC_S_CMD: AD-HOC Start command is ready\n");
908
909 if (IS_SUPPORT_MULTI_BANDS(adapter)) {
910 /* Append a channel TLV */
911 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
912 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
913 chan_tlv->header.len =
914 cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
915
916 memset(chan_tlv->chan_scan_param, 0x00,
917 sizeof(struct mwifiex_chan_scan_param_set));
918 chan_tlv->chan_scan_param[0].chan_number =
919 (u8) priv->curr_bss_params.bss_descriptor.channel;
920
921 dev_dbg(adapter->dev, "info: ADHOC_S_CMD: TLV Chan = %d\n",
922 chan_tlv->chan_scan_param[0].chan_number);
923
924 chan_tlv->chan_scan_param[0].radio_type
925 = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
926 if (adapter->adhoc_start_band & BAND_GN
927 || adapter->adhoc_start_band & BAND_AN) {
928 if (adapter->chan_offset == SEC_CHANNEL_ABOVE)
929 chan_tlv->chan_scan_param[0].radio_type |=
930 SECOND_CHANNEL_ABOVE;
931 else if (adapter->chan_offset == SEC_CHANNEL_BELOW)
932 chan_tlv->chan_scan_param[0].radio_type |=
933 SECOND_CHANNEL_BELOW;
934 }
935 dev_dbg(adapter->dev, "info: ADHOC_S_CMD: TLV Band = %d\n",
936 chan_tlv->chan_scan_param[0].radio_type);
937 pos += sizeof(chan_tlv->header) +
938 sizeof(struct mwifiex_chan_scan_param_set);
939 cmd_append_size +=
940 sizeof(chan_tlv->header) +
941 sizeof(struct mwifiex_chan_scan_param_set);
942 }
943
944 /* Append vendor specific IE TLV */
945 cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
946 MWIFIEX_VSIE_MASK_ADHOC, &pos);
947
948 if (priv->sec_info.wpa_enabled) {
949 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
950 if (rsn_ie_len == -1)
951 return -1;
952 cmd_append_size += rsn_ie_len;
953 }
954
955 if (adapter->adhoc_11n_enabled) {
956 {
957 ht_cap = (struct mwifiex_ie_types_htcap *) pos;
958 memset(ht_cap, 0,
959 sizeof(struct mwifiex_ie_types_htcap));
960 ht_cap->header.type =
961 cpu_to_le16(WLAN_EID_HT_CAPABILITY);
962 ht_cap->header.len =
963 cpu_to_le16(sizeof(struct ieee80211_ht_cap));
964 ht_cap_info = le16_to_cpu(ht_cap->ht_cap.cap_info);
965
966 ht_cap_info |= IEEE80211_HT_CAP_SGI_20;
967 if (adapter->chan_offset) {
968 ht_cap_info |= IEEE80211_HT_CAP_SGI_40;
969 ht_cap_info |= IEEE80211_HT_CAP_DSSSCCK40;
970 ht_cap_info |= IEEE80211_HT_CAP_SUP_WIDTH_20_40;
971 SETHT_MCS32(ht_cap->ht_cap.mcs.rx_mask);
972 }
973
974 ht_cap->ht_cap.ampdu_params_info
975 = IEEE80211_HT_MAX_AMPDU_64K;
976 ht_cap->ht_cap.mcs.rx_mask[0] = 0xff;
977 pos += sizeof(struct mwifiex_ie_types_htcap);
978 cmd_append_size +=
979 sizeof(struct mwifiex_ie_types_htcap);
980 }
981 {
982 ht_info = (struct mwifiex_ie_types_htinfo *) pos;
983 memset(ht_info, 0,
984 sizeof(struct mwifiex_ie_types_htinfo));
985 ht_info->header.type =
986 cpu_to_le16(WLAN_EID_HT_INFORMATION);
987 ht_info->header.len =
988 cpu_to_le16(sizeof(struct ieee80211_ht_info));
989 ht_info->ht_info.control_chan =
990 (u8) priv->curr_bss_params.bss_descriptor.
991 channel;
992 if (adapter->chan_offset) {
993 ht_info->ht_info.ht_param =
994 adapter->chan_offset;
995 ht_info->ht_info.ht_param |=
996 IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
997 }
998 ht_info->ht_info.operation_mode =
999 cpu_to_le16(IEEE80211_HT_OP_MODE_NON_GF_STA_PRSNT);
1000 ht_info->ht_info.basic_set[0] = 0xff;
1001 pos += sizeof(struct mwifiex_ie_types_htinfo);
1002 cmd_append_size +=
1003 sizeof(struct mwifiex_ie_types_htinfo);
1004 }
1005 }
1006
1007 cmd->size = cpu_to_le16((u16)
1008 (sizeof(struct host_cmd_ds_802_11_ad_hoc_start)
1009 + S_DS_GEN + cmd_append_size));
1010
1011 if (adapter->adhoc_start_band == BAND_B)
1012 tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
1013 else
1014 tmp_cap |= WLAN_CAPABILITY_SHORT_SLOT_TIME;
1015
1016 adhoc_start->cap_info_bitmap = cpu_to_le16(tmp_cap);
1017
1018 return 0;
1019}
1020
1021/*
1022 * This function prepares command for ad-hoc join.
1023 *
1024 * Most of the parameters are set up by copying from the target BSS descriptor
1025 * from the scan response.
1026 *
1027 * In addition, the following TLVs are added -
1028 * - Channel TLV
1029 * - Vendor specific IE
1030 * - WPA/WPA2 IE
1031 * - 11n IE
1032 *
1033 * Preparation also includes -
1034 * - Setting command ID and proper size
1035 * - Ensuring correct endian-ness
1036 */
1037int
1038mwifiex_cmd_802_11_ad_hoc_join(struct mwifiex_private *priv,
1039 struct host_cmd_ds_command *cmd, void *data_buf)
1040{
1041 int rsn_ie_len = 0;
1042 struct host_cmd_ds_802_11_ad_hoc_join *adhoc_join =
1043 &cmd->params.adhoc_join;
1044 struct mwifiex_bssdescriptor *bss_desc =
1045 (struct mwifiex_bssdescriptor *) data_buf;
1046 struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
1047 u32 cmd_append_size = 0;
1048 u16 tmp_cap;
1049 u32 i, rates_size = 0;
1050 u16 curr_pkt_filter;
1051 u8 *pos =
1052 (u8 *) adhoc_join +
1053 sizeof(struct host_cmd_ds_802_11_ad_hoc_join);
1054
1055/* Use G protection */
1056#define USE_G_PROTECTION 0x02
1057 if (bss_desc->erp_flags & USE_G_PROTECTION) {
1058 curr_pkt_filter =
1059 priv->
1060 curr_pkt_filter | HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON;
1061
1062 if (mwifiex_send_cmd_async(priv, HostCmd_CMD_MAC_CONTROL,
1063 HostCmd_ACT_GEN_SET, 0,
1064 &curr_pkt_filter)) {
1065 dev_err(priv->adapter->dev,
1066 "ADHOC_J_CMD: G Protection config failed\n");
1067 return -1;
1068 }
1069 }
1070
1071 priv->attempted_bss_desc = bss_desc;
1072
1073 cmd->command = cpu_to_le16(HostCmd_CMD_802_11_AD_HOC_JOIN);
1074
1075 adhoc_join->bss_descriptor.bss_mode = HostCmd_BSS_MODE_IBSS;
1076
1077 adhoc_join->bss_descriptor.beacon_period
1078 = cpu_to_le16(bss_desc->beacon_period);
1079
1080 memcpy(&adhoc_join->bss_descriptor.bssid,
1081 &bss_desc->mac_address, ETH_ALEN);
1082
1083 memcpy(&adhoc_join->bss_descriptor.ssid,
1084 &bss_desc->ssid.ssid, bss_desc->ssid.ssid_len);
1085
1086 memcpy(&adhoc_join->bss_descriptor.phy_param_set,
1087 &bss_desc->phy_param_set,
1088 sizeof(union ieee_types_phy_param_set));
1089
1090 memcpy(&adhoc_join->bss_descriptor.ss_param_set,
1091 &bss_desc->ss_param_set, sizeof(union ieee_types_ss_param_set));
1092
1093 tmp_cap = bss_desc->cap_info_bitmap;
1094
1095 tmp_cap &= CAPINFO_MASK;
1096
1097 dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: tmp_cap=%4X"
1098 " CAPINFO_MASK=%4lX\n", tmp_cap, CAPINFO_MASK);
1099
1100 /* Information on BSSID descriptor passed to FW */
1101 dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: BSSID = %pM, SSID = %s\n",
1102 adhoc_join->bss_descriptor.bssid,
1103 adhoc_join->bss_descriptor.ssid);
1104
1105 for (i = 0; bss_desc->supported_rates[i] &&
1106 i < MWIFIEX_SUPPORTED_RATES;
1107 i++)
1108 ;
1109 rates_size = i;
1110
1111 /* Copy Data Rates from the Rates recorded in scan response */
1112 memset(adhoc_join->bss_descriptor.data_rates, 0,
1113 sizeof(adhoc_join->bss_descriptor.data_rates));
1114 memcpy(adhoc_join->bss_descriptor.data_rates,
1115 bss_desc->supported_rates, rates_size);
1116
1117 /* Copy the adhoc join rates into Current BSS state structure */
1118 priv->curr_bss_params.num_of_rates = rates_size;
1119 memcpy(&priv->curr_bss_params.data_rates, bss_desc->supported_rates,
1120 rates_size);
1121
1122 /* Copy the channel information */
1123 priv->curr_bss_params.bss_descriptor.channel = bss_desc->channel;
1124 priv->curr_bss_params.band = (u8) bss_desc->bss_band;
1125
1126 if (priv->sec_info.wep_status == MWIFIEX_802_11_WEP_ENABLED
1127 || priv->sec_info.wpa_enabled)
1128 tmp_cap |= WLAN_CAPABILITY_PRIVACY;
1129
1130 if (IS_SUPPORT_MULTI_BANDS(priv->adapter)) {
1131 /* Append a channel TLV */
1132 chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
1133 chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
1134 chan_tlv->header.len =
1135 cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
1136
1137 memset(chan_tlv->chan_scan_param, 0x00,
1138 sizeof(struct mwifiex_chan_scan_param_set));
1139 chan_tlv->chan_scan_param[0].chan_number =
1140 (bss_desc->phy_param_set.ds_param_set.current_chan);
1141 dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: TLV Chan = %d\n",
1142 chan_tlv->chan_scan_param[0].chan_number);
1143
1144 chan_tlv->chan_scan_param[0].radio_type =
1145 mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
1146
1147 dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: TLV Band = %d\n",
1148 chan_tlv->chan_scan_param[0].radio_type);
1149 pos += sizeof(chan_tlv->header) +
1150 sizeof(struct mwifiex_chan_scan_param_set);
1151 cmd_append_size += sizeof(chan_tlv->header) +
1152 sizeof(struct mwifiex_chan_scan_param_set);
1153 }
1154
1155 if (priv->sec_info.wpa_enabled)
1156 rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
1157 if (rsn_ie_len == -1)
1158 return -1;
1159 cmd_append_size += rsn_ie_len;
1160
1161 if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info))
1162 cmd_append_size += mwifiex_cmd_append_11n_tlv(priv,
1163 bss_desc, &pos);
1164
1165 /* Append vendor specific IE TLV */
1166 cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
1167 MWIFIEX_VSIE_MASK_ADHOC, &pos);
1168
1169 cmd->size = cpu_to_le16((u16)
1170 (sizeof(struct host_cmd_ds_802_11_ad_hoc_join)
1171 + S_DS_GEN + cmd_append_size));
1172
1173 adhoc_join->bss_descriptor.cap_info_bitmap = cpu_to_le16(tmp_cap);
1174
1175 return 0;
1176}
1177
1178/*
1179 * This function handles the command response of ad-hoc start and
1180 * ad-hoc join.
1181 *
1182 * The function generates a device-connected event to notify
1183 * the applications, in case of successful ad-hoc start/join, and
1184 * saves the beacon buffer.
1185 */
1186int mwifiex_ret_802_11_ad_hoc(struct mwifiex_private *priv,
1187 struct host_cmd_ds_command *resp)
1188{
1189 int ret = 0;
1190 struct mwifiex_adapter *adapter = priv->adapter;
1191 struct host_cmd_ds_802_11_ad_hoc_result *adhoc_result;
1192 struct mwifiex_bssdescriptor *bss_desc;
1193
1194 adhoc_result = &resp->params.adhoc_result;
1195
1196 bss_desc = priv->attempted_bss_desc;
1197
1198 /* Join result code 0 --> SUCCESS */
1199 if (le16_to_cpu(resp->result)) {
1200 dev_err(priv->adapter->dev, "ADHOC_RESP: failed\n");
1201 if (priv->media_connected)
1202 mwifiex_reset_connect_state(priv);
1203
1204 memset(&priv->curr_bss_params.bss_descriptor,
1205 0x00, sizeof(struct mwifiex_bssdescriptor));
1206
1207 ret = -1;
1208 goto done;
1209 }
1210
1211 /* Send a Media Connected event, according to the Spec */
1212 priv->media_connected = true;
1213
1214 if (le16_to_cpu(resp->command) == HostCmd_CMD_802_11_AD_HOC_START) {
1215 dev_dbg(priv->adapter->dev, "info: ADHOC_S_RESP %s\n",
1216 bss_desc->ssid.ssid);
1217
1218 /* Update the created network descriptor with the new BSSID */
1219 memcpy(bss_desc->mac_address,
1220 adhoc_result->bssid, ETH_ALEN);
1221
1222 priv->adhoc_state = ADHOC_STARTED;
1223 } else {
1224 /*
1225 * Now the join cmd should be successful.
1226 * If BSSID has changed use SSID to compare instead of BSSID
1227 */
1228 dev_dbg(priv->adapter->dev, "info: ADHOC_J_RESP %s\n",
1229 bss_desc->ssid.ssid);
1230
1231 /*
1232 * Make a copy of current BSSID descriptor, only needed for
1233 * join since the current descriptor is already being used
1234 * for adhoc start
1235 */
1236 memcpy(&priv->curr_bss_params.bss_descriptor,
1237 bss_desc, sizeof(struct mwifiex_bssdescriptor));
1238
1239 priv->adhoc_state = ADHOC_JOINED;
1240 }
1241
1242 dev_dbg(priv->adapter->dev, "info: ADHOC_RESP: channel = %d\n",
1243 priv->adhoc_channel);
1244 dev_dbg(priv->adapter->dev, "info: ADHOC_RESP: BSSID = %pM\n",
1245 priv->curr_bss_params.bss_descriptor.mac_address);
1246
1247 if (!netif_carrier_ok(priv->netdev))
1248 netif_carrier_on(priv->netdev);
1249 if (netif_queue_stopped(priv->netdev))
1250 netif_wake_queue(priv->netdev);
1251
1252 mwifiex_save_curr_bcn(priv);
1253
1254done:
1255 /* Need to indicate IOCTL complete */
1256 if (adapter->curr_cmd->wait_q_enabled) {
1257 if (ret)
1258 adapter->cmd_wait_q.status = -1;
1259 else
1260 adapter->cmd_wait_q.status = 0;
1261
1262 }
1263
1264 return ret;
1265}
1266
1267/*
1268 * This function associates to a specific BSS discovered in a scan.
1269 *
1270 * It clears any past association response stored for application
1271 * retrieval and calls the command preparation routine to send the
1272 * command to firmware.
1273 */
1274int mwifiex_associate(struct mwifiex_private *priv,
1275 struct mwifiex_bssdescriptor *bss_desc)
1276{
1277 u8 current_bssid[ETH_ALEN];
1278
1279 /* Return error if the adapter or table entry is not marked as infra */
1280 if ((priv->bss_mode != NL80211_IFTYPE_STATION) ||
1281 (bss_desc->bss_mode != NL80211_IFTYPE_STATION))
1282 return -1;
1283
1284 memcpy(&current_bssid,
1285 &priv->curr_bss_params.bss_descriptor.mac_address,
1286 sizeof(current_bssid));
1287
1288 /* Clear any past association response stored for application
1289 retrieval */
1290 priv->assoc_rsp_size = 0;
1291
1292 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_ASSOCIATE,
1293 HostCmd_ACT_GEN_SET, 0, bss_desc);
1294}
1295
1296/*
1297 * This function starts an ad-hoc network.
1298 *
1299 * It calls the command preparation routine to send the command to firmware.
1300 */
1301int
1302mwifiex_adhoc_start(struct mwifiex_private *priv,
1303 struct mwifiex_802_11_ssid *adhoc_ssid)
1304{
1305 dev_dbg(priv->adapter->dev, "info: Adhoc Channel = %d\n",
1306 priv->adhoc_channel);
1307 dev_dbg(priv->adapter->dev, "info: curr_bss_params.channel = %d\n",
1308 priv->curr_bss_params.bss_descriptor.channel);
1309 dev_dbg(priv->adapter->dev, "info: curr_bss_params.band = %d\n",
1310 priv->curr_bss_params.band);
1311
1312 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_AD_HOC_START,
1313 HostCmd_ACT_GEN_SET, 0, adhoc_ssid);
1314}
1315
1316/*
1317 * This function joins an ad-hoc network found in a previous scan.
1318 *
1319 * It calls the command preparation routine to send the command to firmware,
1320 * if already not connected to the requested SSID.
1321 */
1322int mwifiex_adhoc_join(struct mwifiex_private *priv,
1323 struct mwifiex_bssdescriptor *bss_desc)
1324{
1325 dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid =%s\n",
1326 priv->curr_bss_params.bss_descriptor.ssid.ssid);
1327 dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid_len =%u\n",
1328 priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
1329 dev_dbg(priv->adapter->dev, "info: adhoc join: ssid =%s\n",
1330 bss_desc->ssid.ssid);
1331 dev_dbg(priv->adapter->dev, "info: adhoc join: ssid_len =%u\n",
1332 bss_desc->ssid.ssid_len);
1333
1334 /* Check if the requested SSID is already joined */
1335 if (priv->curr_bss_params.bss_descriptor.ssid.ssid_len &&
1336 !mwifiex_ssid_cmp(&bss_desc->ssid,
1337 &priv->curr_bss_params.bss_descriptor.ssid) &&
1338 (priv->curr_bss_params.bss_descriptor.bss_mode ==
1339 NL80211_IFTYPE_ADHOC)) {
1340 dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: new ad-hoc SSID"
1341 " is the same as current; not attempting to re-join\n");
1342 return -1;
1343 }
1344
1345 dev_dbg(priv->adapter->dev, "info: curr_bss_params.channel = %d\n",
1346 priv->curr_bss_params.bss_descriptor.channel);
1347 dev_dbg(priv->adapter->dev, "info: curr_bss_params.band = %c\n",
1348 priv->curr_bss_params.band);
1349
1350 return mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_AD_HOC_JOIN,
1351 HostCmd_ACT_GEN_SET, 0, bss_desc);
1352}
1353
1354/*
1355 * This function deauthenticates/disconnects from infra network by sending
1356 * deauthentication request.
1357 */
1358static int mwifiex_deauthenticate_infra(struct mwifiex_private *priv, u8 *mac)
1359{
1360 u8 mac_address[ETH_ALEN];
1361 int ret;
1362 u8 zero_mac[ETH_ALEN] = { 0, 0, 0, 0, 0, 0 };
1363
1364 if (mac) {
1365 if (!memcmp(mac, zero_mac, sizeof(zero_mac)))
1366 memcpy((u8 *) &mac_address,
1367 (u8 *) &priv->curr_bss_params.bss_descriptor.
1368 mac_address, ETH_ALEN);
1369 else
1370 memcpy((u8 *) &mac_address, (u8 *) mac, ETH_ALEN);
1371 } else {
1372 memcpy((u8 *) &mac_address, (u8 *) &priv->curr_bss_params.
1373 bss_descriptor.mac_address, ETH_ALEN);
1374 }
1375
1376 ret = mwifiex_send_cmd_sync(priv, HostCmd_CMD_802_11_DEAUTHENTICATE,
1377 HostCmd_ACT_GEN_SET, 0, &mac_address);
1378
1379 return ret;
1380}
1381
1382/*
1383 * This function deauthenticates/disconnects from a BSS.
1384 *
1385 * In case of infra made, it sends deauthentication request, and
1386 * in case of ad-hoc mode, a stop network request is sent to the firmware.
1387 */
1388int mwifiex_deauthenticate(struct mwifiex_private *priv, u8 *mac)
1389{
1390 int ret = 0;
1391
1392 if (priv->media_connected) {
1393 if (priv->bss_mode == NL80211_IFTYPE_STATION) {
1394 ret = mwifiex_deauthenticate_infra(priv, mac);
1395 } else if (priv->bss_mode == NL80211_IFTYPE_ADHOC) {
1396 ret = mwifiex_send_cmd_sync(priv,
1397 HostCmd_CMD_802_11_AD_HOC_STOP,
1398 HostCmd_ACT_GEN_SET, 0, NULL);
1399 }
1400 }
1401
1402 return ret;
1403}
1404EXPORT_SYMBOL_GPL(mwifiex_deauthenticate);
1405
1406/*
1407 * This function converts band to radio type used in channel TLV.
1408 */
1409u8
1410mwifiex_band_to_radio_type(u8 band)
1411{
1412 switch (band) {
1413 case BAND_A:
1414 case BAND_AN:
1415 case BAND_A | BAND_AN:
1416 return HostCmd_SCAN_RADIO_TYPE_A;
1417 case BAND_B:
1418 case BAND_G:
1419 case BAND_B | BAND_G:
1420 default:
1421 return HostCmd_SCAN_RADIO_TYPE_BG;
1422 }
1423}
generated by cgit v1.2.2 (git 2.25.0) at 2025-04-10 03:10:49 -0400