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join.c
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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  */
38 static int
39 mwifiex_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,
56  "info: %s: append generic ie len %d to %p\n",
57  __func__, priv->gen_ie_buf_len, *buffer);
58 
59  /* Wrap the generic IE buffer with a pass through TLV type */
61  ie_header.len = cpu_to_le16(priv->gen_ie_buf_len);
62  memcpy(*buffer, &ie_header, sizeof(ie_header));
63 
64  /* Increment the return size and the return buffer pointer
65  param */
66  *buffer += sizeof(ie_header);
67  ret_len += sizeof(ie_header);
68 
69  /* Copy the generic IE buffer to the output buffer, advance
70  pointer */
71  memcpy(*buffer, priv->gen_ie_buf, priv->gen_ie_buf_len);
72 
73  /* Increment the return size and the return buffer pointer
74  param */
75  *buffer += priv->gen_ie_buf_len;
76  ret_len += priv->gen_ie_buf_len;
77 
78  /* Reset the generic IE buffer */
79  priv->gen_ie_buf_len = 0;
80  }
81 
82  /* return the length appended to the buffer */
83  return ret_len;
84 }
85 
86 /*
87  * Append TSF tracking info from the scan table for the target AP.
88  *
89  * This function is called from the network join command preparation routine.
90  *
91  * The TSF table TSF sent to the firmware contains two TSF values:
92  * - The TSF of the target AP from its previous beacon/probe response
93  * - The TSF timestamp of our local MAC at the time we observed the
94  * beacon/probe response.
95  *
96  * The firmware uses the timestamp values to set an initial TSF value
97  * in the MAC for the new association after a reassociation attempt.
98  */
99 static int
100 mwifiex_cmd_append_tsf_tlv(struct mwifiex_private *priv, u8 **buffer,
101  struct mwifiex_bssdescriptor *bss_desc)
102 {
103  struct mwifiex_ie_types_tsf_timestamp tsf_tlv;
104  __le64 tsf_val;
105 
106  /* Null Checks */
107  if (buffer == NULL)
108  return 0;
109  if (*buffer == NULL)
110  return 0;
111 
112  memset(&tsf_tlv, 0x00, sizeof(struct mwifiex_ie_types_tsf_timestamp));
113 
114  tsf_tlv.header.type = cpu_to_le16(TLV_TYPE_TSFTIMESTAMP);
115  tsf_tlv.header.len = cpu_to_le16(2 * sizeof(tsf_val));
116 
117  memcpy(*buffer, &tsf_tlv, sizeof(tsf_tlv.header));
118  *buffer += sizeof(tsf_tlv.header);
119 
120  /* TSF at the time when beacon/probe_response was received */
121  tsf_val = cpu_to_le64(bss_desc->fw_tsf);
122  memcpy(*buffer, &tsf_val, sizeof(tsf_val));
123  *buffer += sizeof(tsf_val);
124 
125  tsf_val = cpu_to_le64(bss_desc->timestamp);
126 
127  dev_dbg(priv->adapter->dev,
128  "info: %s: TSF offset calc: %016llx - %016llx\n",
129  __func__, bss_desc->timestamp, bss_desc->fw_tsf);
130 
131  memcpy(*buffer, &tsf_val, sizeof(tsf_val));
132  *buffer += sizeof(tsf_val);
133 
134  return sizeof(tsf_tlv.header) + (2 * sizeof(tsf_val));
135 }
136 
137 /*
138  * This function finds out the common rates between rate1 and rate2.
139  *
140  * It will fill common rates in rate1 as output if found.
141  *
142  * NOTE: Setting the MSB of the basic rates needs to be taken
143  * care of, either before or after calling this function.
144  */
145 static int mwifiex_get_common_rates(struct mwifiex_private *priv, u8 *rate1,
146  u32 rate1_size, u8 *rate2, u32 rate2_size)
147 {
148  int ret;
149  u8 *ptr = rate1, *tmp;
150  u32 i, j;
151 
152  tmp = kmemdup(rate1, rate1_size, GFP_KERNEL);
153  if (!tmp) {
154  dev_err(priv->adapter->dev, "failed to alloc tmp buf\n");
155  return -ENOMEM;
156  }
157 
158  memset(rate1, 0, rate1_size);
159 
160  for (i = 0; rate2[i] && i < rate2_size; i++) {
161  for (j = 0; tmp[j] && j < rate1_size; j++) {
162  /* Check common rate, excluding the bit for
163  basic rate */
164  if ((rate2[i] & 0x7F) == (tmp[j] & 0x7F)) {
165  *rate1++ = tmp[j];
166  break;
167  }
168  }
169  }
170 
171  dev_dbg(priv->adapter->dev, "info: Tx data rate set to %#x\n",
172  priv->data_rate);
173 
174  if (!priv->is_data_rate_auto) {
175  while (*ptr) {
176  if ((*ptr & 0x7f) == priv->data_rate) {
177  ret = 0;
178  goto done;
179  }
180  ptr++;
181  }
182  dev_err(priv->adapter->dev, "previously set fixed data rate %#x"
183  " is not compatible with the network\n",
184  priv->data_rate);
185 
186  ret = -1;
187  goto done;
188  }
189 
190  ret = 0;
191 done:
192  kfree(tmp);
193  return ret;
194 }
195 
196 /*
197  * This function creates the intersection of the rates supported by a
198  * target BSS and our adapter settings for use in an assoc/join command.
199  */
200 static int
201 mwifiex_setup_rates_from_bssdesc(struct mwifiex_private *priv,
202  struct mwifiex_bssdescriptor *bss_desc,
203  u8 *out_rates, u32 *out_rates_size)
204 {
205  u8 card_rates[MWIFIEX_SUPPORTED_RATES];
206  u32 card_rates_size;
207 
208  /* Copy AP supported rates */
209  memcpy(out_rates, bss_desc->supported_rates, MWIFIEX_SUPPORTED_RATES);
210  /* Get the STA supported rates */
211  card_rates_size = mwifiex_get_active_data_rates(priv, card_rates);
212  /* Get the common rates between AP and STA supported rates */
213  if (mwifiex_get_common_rates(priv, out_rates, MWIFIEX_SUPPORTED_RATES,
214  card_rates, card_rates_size)) {
215  *out_rates_size = 0;
216  dev_err(priv->adapter->dev, "%s: cannot get common rates\n",
217  __func__);
218  return -1;
219  }
220 
221  *out_rates_size =
222  min_t(size_t, strlen(out_rates), MWIFIEX_SUPPORTED_RATES);
223 
224  return 0;
225 }
226 
227 /*
228  * This function appends a WPS IE. It is called from the network join command
229  * preparation routine.
230  *
231  * If the IE buffer has been setup by the application, this routine appends
232  * the buffer as a WPS TLV type to the request.
233  */
234 static int
235 mwifiex_cmd_append_wps_ie(struct mwifiex_private *priv, u8 **buffer)
236 {
237  int retLen = 0;
238  struct mwifiex_ie_types_header ie_header;
239 
240  if (!buffer || !*buffer)
241  return 0;
242 
243  /*
244  * If there is a wps ie buffer setup, append it to the return
245  * parameter buffer pointer.
246  */
247  if (priv->wps_ie_len) {
248  dev_dbg(priv->adapter->dev, "cmd: append wps ie %d to %p\n",
249  priv->wps_ie_len, *buffer);
250 
251  /* Wrap the generic IE buffer with a pass through TLV type */
252  ie_header.type = cpu_to_le16(TLV_TYPE_MGMT_IE);
253  ie_header.len = cpu_to_le16(priv->wps_ie_len);
254  memcpy(*buffer, &ie_header, sizeof(ie_header));
255  *buffer += sizeof(ie_header);
256  retLen += sizeof(ie_header);
257 
258  memcpy(*buffer, priv->wps_ie, priv->wps_ie_len);
259  *buffer += priv->wps_ie_len;
260  retLen += priv->wps_ie_len;
261 
262  }
263 
264  kfree(priv->wps_ie);
265  priv->wps_ie_len = 0;
266  return retLen;
267 }
268 
269 /*
270  * This function appends a WAPI IE.
271  *
272  * This function is called from the network join command preparation routine.
273  *
274  * If the IE buffer has been setup by the application, this routine appends
275  * the buffer as a WAPI TLV type to the request.
276  */
277 static int
278 mwifiex_cmd_append_wapi_ie(struct mwifiex_private *priv, u8 **buffer)
279 {
280  int retLen = 0;
281  struct mwifiex_ie_types_header ie_header;
282 
283  /* Null Checks */
284  if (buffer == NULL)
285  return 0;
286  if (*buffer == NULL)
287  return 0;
288 
289  /*
290  * If there is a wapi ie buffer setup, append it to the return
291  * parameter buffer pointer.
292  */
293  if (priv->wapi_ie_len) {
294  dev_dbg(priv->adapter->dev, "cmd: append wapi ie %d to %p\n",
295  priv->wapi_ie_len, *buffer);
296 
297  /* Wrap the generic IE buffer with a pass through TLV type */
298  ie_header.type = cpu_to_le16(TLV_TYPE_WAPI_IE);
299  ie_header.len = cpu_to_le16(priv->wapi_ie_len);
300  memcpy(*buffer, &ie_header, sizeof(ie_header));
301 
302  /* Increment the return size and the return buffer pointer
303  param */
304  *buffer += sizeof(ie_header);
305  retLen += sizeof(ie_header);
306 
307  /* Copy the wapi IE buffer to the output buffer, advance
308  pointer */
309  memcpy(*buffer, priv->wapi_ie, priv->wapi_ie_len);
310 
311  /* Increment the return size and the return buffer pointer
312  param */
313  *buffer += priv->wapi_ie_len;
314  retLen += priv->wapi_ie_len;
315 
316  }
317  /* return the length appended to the buffer */
318  return retLen;
319 }
320 
321 /*
322  * This function appends rsn ie tlv for wpa/wpa2 security modes.
323  * It is called from the network join command preparation routine.
324  */
325 static int mwifiex_append_rsn_ie_wpa_wpa2(struct mwifiex_private *priv,
326  u8 **buffer)
327 {
328  struct mwifiex_ie_types_rsn_param_set *rsn_ie_tlv;
329  int rsn_ie_len;
330 
331  if (!buffer || !(*buffer))
332  return 0;
333 
334  rsn_ie_tlv = (struct mwifiex_ie_types_rsn_param_set *) (*buffer);
335  rsn_ie_tlv->header.type = cpu_to_le16((u16) priv->wpa_ie[0]);
336  rsn_ie_tlv->header.type = cpu_to_le16(
337  le16_to_cpu(rsn_ie_tlv->header.type) & 0x00FF);
338  rsn_ie_tlv->header.len = cpu_to_le16((u16) priv->wpa_ie[1]);
339  rsn_ie_tlv->header.len = cpu_to_le16(le16_to_cpu(rsn_ie_tlv->header.len)
340  & 0x00FF);
341  if (le16_to_cpu(rsn_ie_tlv->header.len) <= (sizeof(priv->wpa_ie) - 2))
342  memcpy(rsn_ie_tlv->rsn_ie, &priv->wpa_ie[2],
343  le16_to_cpu(rsn_ie_tlv->header.len));
344  else
345  return -1;
346 
347  rsn_ie_len = sizeof(rsn_ie_tlv->header) +
348  le16_to_cpu(rsn_ie_tlv->header.len);
349  *buffer += rsn_ie_len;
350 
351  return rsn_ie_len;
352 }
353 
354 /*
355  * This function prepares command for association.
356  *
357  * This sets the following parameters -
358  * - Peer MAC address
359  * - Listen interval
360  * - Beacon interval
361  * - Capability information
362  *
363  * ...and the following TLVs, as required -
364  * - SSID TLV
365  * - PHY TLV
366  * - SS TLV
367  * - Rates TLV
368  * - Authentication TLV
369  * - Channel TLV
370  * - WPA/WPA2 IE
371  * - 11n TLV
372  * - Vendor specific TLV
373  * - WMM TLV
374  * - WAPI IE
375  * - Generic IE
376  * - TSF TLV
377  *
378  * Preparation also includes -
379  * - Setting command ID and proper size
380  * - Ensuring correct endian-ness
381  */
383  struct host_cmd_ds_command *cmd,
384  struct mwifiex_bssdescriptor *bss_desc)
385 {
386  struct host_cmd_ds_802_11_associate *assoc = &cmd->params.associate;
387  struct mwifiex_ie_types_ssid_param_set *ssid_tlv;
388  struct mwifiex_ie_types_phy_param_set *phy_tlv;
389  struct mwifiex_ie_types_ss_param_set *ss_tlv;
390  struct mwifiex_ie_types_rates_param_set *rates_tlv;
391  struct mwifiex_ie_types_auth_type *auth_tlv;
392  struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
394  u32 rates_size;
395  u16 tmp_cap;
396  u8 *pos;
397  int rsn_ie_len = 0;
398 
399  pos = (u8 *) assoc;
400 
401  mwifiex_cfg_tx_buf(priv, bss_desc);
402 
404 
405  /* Save so we know which BSS Desc to use in the response handler */
406  priv->attempted_bss_desc = bss_desc;
407 
408  memcpy(assoc->peer_sta_addr,
409  bss_desc->mac_address, sizeof(assoc->peer_sta_addr));
410  pos += sizeof(assoc->peer_sta_addr);
411 
412  /* Set the listen interval */
414  /* Set the beacon period */
415  assoc->beacon_period = cpu_to_le16(bss_desc->beacon_period);
416 
417  pos += sizeof(assoc->cap_info_bitmap);
418  pos += sizeof(assoc->listen_interval);
419  pos += sizeof(assoc->beacon_period);
420  pos += sizeof(assoc->dtim_period);
421 
422  ssid_tlv = (struct mwifiex_ie_types_ssid_param_set *) pos;
423  ssid_tlv->header.type = cpu_to_le16(WLAN_EID_SSID);
424  ssid_tlv->header.len = cpu_to_le16((u16) bss_desc->ssid.ssid_len);
425  memcpy(ssid_tlv->ssid, bss_desc->ssid.ssid,
426  le16_to_cpu(ssid_tlv->header.len));
427  pos += sizeof(ssid_tlv->header) + le16_to_cpu(ssid_tlv->header.len);
428 
429  phy_tlv = (struct mwifiex_ie_types_phy_param_set *) pos;
430  phy_tlv->header.type = cpu_to_le16(WLAN_EID_DS_PARAMS);
431  phy_tlv->header.len = cpu_to_le16(sizeof(phy_tlv->fh_ds.ds_param_set));
432  memcpy(&phy_tlv->fh_ds.ds_param_set,
433  &bss_desc->phy_param_set.ds_param_set.current_chan,
434  sizeof(phy_tlv->fh_ds.ds_param_set));
435  pos += sizeof(phy_tlv->header) + le16_to_cpu(phy_tlv->header.len);
436 
437  ss_tlv = (struct mwifiex_ie_types_ss_param_set *) pos;
438  ss_tlv->header.type = cpu_to_le16(WLAN_EID_CF_PARAMS);
439  ss_tlv->header.len = cpu_to_le16(sizeof(ss_tlv->cf_ibss.cf_param_set));
440  pos += sizeof(ss_tlv->header) + le16_to_cpu(ss_tlv->header.len);
441 
442  /* Get the common rates supported between the driver and the BSS Desc */
443  if (mwifiex_setup_rates_from_bssdesc
444  (priv, bss_desc, rates, &rates_size))
445  return -1;
446 
447  /* Save the data rates into Current BSS state structure */
448  priv->curr_bss_params.num_of_rates = rates_size;
449  memcpy(&priv->curr_bss_params.data_rates, rates, rates_size);
450 
451  /* Setup the Rates TLV in the association command */
452  rates_tlv = (struct mwifiex_ie_types_rates_param_set *) pos;
453  rates_tlv->header.type = cpu_to_le16(WLAN_EID_SUPP_RATES);
454  rates_tlv->header.len = cpu_to_le16((u16) rates_size);
455  memcpy(rates_tlv->rates, rates, rates_size);
456  pos += sizeof(rates_tlv->header) + rates_size;
457  dev_dbg(priv->adapter->dev, "info: ASSOC_CMD: rates size = %d\n",
458  rates_size);
459 
460  /* Add the Authentication type to be used for Auth frames */
461  auth_tlv = (struct mwifiex_ie_types_auth_type *) pos;
462  auth_tlv->header.type = cpu_to_le16(TLV_TYPE_AUTH_TYPE);
463  auth_tlv->header.len = cpu_to_le16(sizeof(auth_tlv->auth_type));
464  if (priv->sec_info.wep_enabled)
465  auth_tlv->auth_type = cpu_to_le16(
466  (u16) priv->sec_info.authentication_mode);
467  else
469 
470  pos += sizeof(auth_tlv->header) + le16_to_cpu(auth_tlv->header.len);
471 
472  if (IS_SUPPORT_MULTI_BANDS(priv->adapter) &&
473  !(ISSUPP_11NENABLED(priv->adapter->fw_cap_info) &&
474  (!bss_desc->disable_11n) &&
475  (priv->adapter->config_bands & BAND_GN ||
476  priv->adapter->config_bands & BAND_AN) &&
477  (bss_desc->bcn_ht_cap)
478  )
479  ) {
480  /* Append a channel TLV for the channel the attempted AP was
481  found on */
482  chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
483  chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
484  chan_tlv->header.len =
486 
487  memset(chan_tlv->chan_scan_param, 0x00,
488  sizeof(struct mwifiex_chan_scan_param_set));
489  chan_tlv->chan_scan_param[0].chan_number =
490  (bss_desc->phy_param_set.ds_param_set.current_chan);
491  dev_dbg(priv->adapter->dev, "info: Assoc: TLV Chan = %d\n",
492  chan_tlv->chan_scan_param[0].chan_number);
493 
494  chan_tlv->chan_scan_param[0].radio_type =
496 
497  dev_dbg(priv->adapter->dev, "info: Assoc: TLV Band = %d\n",
498  chan_tlv->chan_scan_param[0].radio_type);
499  pos += sizeof(chan_tlv->header) +
500  sizeof(struct mwifiex_chan_scan_param_set);
501  }
502 
503  if (!priv->wps.session_enable) {
504  if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
505  rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
506 
507  if (rsn_ie_len == -1)
508  return -1;
509  }
510 
511  if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info) &&
512  (!bss_desc->disable_11n) &&
513  (priv->adapter->config_bands & BAND_GN ||
514  priv->adapter->config_bands & BAND_AN))
515  mwifiex_cmd_append_11n_tlv(priv, bss_desc, &pos);
516 
517  /* Append vendor specific IE TLV */
519 
520  mwifiex_wmm_process_association_req(priv, &pos, &bss_desc->wmm_ie,
521  bss_desc->bcn_ht_cap);
522  if (priv->sec_info.wapi_enabled && priv->wapi_ie_len)
523  mwifiex_cmd_append_wapi_ie(priv, &pos);
524 
525  if (priv->wps.session_enable && priv->wps_ie_len)
526  mwifiex_cmd_append_wps_ie(priv, &pos);
527 
528  mwifiex_cmd_append_generic_ie(priv, &pos);
529 
530  mwifiex_cmd_append_tsf_tlv(priv, &pos, bss_desc);
531 
532  cmd->size = cpu_to_le16((u16) (pos - (u8 *) assoc) + S_DS_GEN);
533 
534  /* Set the Capability info at last */
535  tmp_cap = bss_desc->cap_info_bitmap;
536 
537  if (priv->adapter->config_bands == BAND_B)
539 
540  tmp_cap &= CAPINFO_MASK;
541  dev_dbg(priv->adapter->dev, "info: ASSOC_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n",
542  tmp_cap, CAPINFO_MASK);
543  assoc->cap_info_bitmap = cpu_to_le16(tmp_cap);
544 
545  return 0;
546 }
547 
548 /*
549  * Association firmware command response handler
550  *
551  * The response buffer for the association command has the following
552  * memory layout.
553  *
554  * For cases where an association response was not received (indicated
555  * by the CapInfo and AId field):
556  *
557  * .------------------------------------------------------------.
558  * | Header(4 * sizeof(t_u16)): Standard command response hdr |
559  * .------------------------------------------------------------.
560  * | cap_info/Error Return(t_u16): |
561  * | 0xFFFF(-1): Internal error |
562  * | 0xFFFE(-2): Authentication unhandled message |
563  * | 0xFFFD(-3): Authentication refused |
564  * | 0xFFFC(-4): Timeout waiting for AP response |
565  * .------------------------------------------------------------.
566  * | status_code(t_u16): |
567  * | If cap_info is -1: |
568  * | An internal firmware failure prevented the |
569  * | command from being processed. The status_code |
570  * | will be set to 1. |
571  * | |
572  * | If cap_info is -2: |
573  * | An authentication frame was received but was |
574  * | not handled by the firmware. IEEE Status |
575  * | code for the failure is returned. |
576  * | |
577  * | If cap_info is -3: |
578  * | An authentication frame was received and the |
579  * | status_code is the IEEE Status reported in the |
580  * | response. |
581  * | |
582  * | If cap_info is -4: |
583  * | (1) Association response timeout |
584  * | (2) Authentication response timeout |
585  * .------------------------------------------------------------.
586  * | a_id(t_u16): 0xFFFF |
587  * .------------------------------------------------------------.
588  *
589  *
590  * For cases where an association response was received, the IEEE
591  * standard association response frame is returned:
592  *
593  * .------------------------------------------------------------.
594  * | Header(4 * sizeof(t_u16)): Standard command response hdr |
595  * .------------------------------------------------------------.
596  * | cap_info(t_u16): IEEE Capability |
597  * .------------------------------------------------------------.
598  * | status_code(t_u16): IEEE Status Code |
599  * .------------------------------------------------------------.
600  * | a_id(t_u16): IEEE Association ID |
601  * .------------------------------------------------------------.
602  * | IEEE IEs(variable): Any received IEs comprising the |
603  * | remaining portion of a received |
604  * | association response frame. |
605  * .------------------------------------------------------------.
606  *
607  * For simplistic handling, the status_code field can be used to determine
608  * an association success (0) or failure (non-zero).
609  */
611  struct host_cmd_ds_command *resp)
612 {
613  struct mwifiex_adapter *adapter = priv->adapter;
614  int ret = 0;
615  struct ieee_types_assoc_rsp *assoc_rsp;
616  struct mwifiex_bssdescriptor *bss_desc;
617  u8 enable_data = true;
618 
619  assoc_rsp = (struct ieee_types_assoc_rsp *) &resp->params;
620 
621  priv->assoc_rsp_size = min(le16_to_cpu(resp->size) - S_DS_GEN,
622  sizeof(priv->assoc_rsp_buf));
623 
624  memcpy(priv->assoc_rsp_buf, &resp->params, priv->assoc_rsp_size);
625 
626  if (le16_to_cpu(assoc_rsp->status_code)) {
627  priv->adapter->dbg.num_cmd_assoc_failure++;
628  dev_err(priv->adapter->dev,
629  "ASSOC_RESP: failed, status code=%d err=%#x a_id=%#x\n",
630  le16_to_cpu(assoc_rsp->status_code),
631  le16_to_cpu(assoc_rsp->cap_info_bitmap),
632  le16_to_cpu(assoc_rsp->a_id));
633 
634  ret = le16_to_cpu(assoc_rsp->status_code);
635  goto done;
636  }
637 
638  /* Send a Media Connected event, according to the Spec */
639  priv->media_connected = true;
640 
641  priv->adapter->ps_state = PS_STATE_AWAKE;
642  priv->adapter->pps_uapsd_mode = false;
643  priv->adapter->tx_lock_flag = false;
644 
645  /* Set the attempted BSSID Index to current */
646  bss_desc = priv->attempted_bss_desc;
647 
648  dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: %s\n",
649  bss_desc->ssid.ssid);
650 
651  /* Make a copy of current BSSID descriptor */
652  memcpy(&priv->curr_bss_params.bss_descriptor,
653  bss_desc, sizeof(struct mwifiex_bssdescriptor));
654 
655  /* Update curr_bss_params */
656  priv->curr_bss_params.bss_descriptor.channel
657  = bss_desc->phy_param_set.ds_param_set.current_chan;
658 
659  priv->curr_bss_params.band = (u8) bss_desc->bss_band;
660 
661  if (bss_desc->wmm_ie.vend_hdr.element_id == WLAN_EID_VENDOR_SPECIFIC)
662  priv->curr_bss_params.wmm_enabled = true;
663  else
664  priv->curr_bss_params.wmm_enabled = false;
665 
666  if ((priv->wmm_required || bss_desc->bcn_ht_cap) &&
667  priv->curr_bss_params.wmm_enabled)
668  priv->wmm_enabled = true;
669  else
670  priv->wmm_enabled = false;
671 
672  priv->curr_bss_params.wmm_uapsd_enabled = false;
673 
674  if (priv->wmm_enabled)
675  priv->curr_bss_params.wmm_uapsd_enabled
676  = ((bss_desc->wmm_ie.qos_info_bitmap &
678 
679  dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: curr_pkt_filter is %#x\n",
680  priv->curr_pkt_filter);
681  if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
682  priv->wpa_is_gtk_set = false;
683 
684  if (priv->wmm_enabled) {
685  /* Don't re-enable carrier until we get the WMM_GET_STATUS
686  event */
687  enable_data = false;
688  } else {
689  /* Since WMM is not enabled, setup the queues with the
690  defaults */
693  }
694 
695  if (enable_data)
696  dev_dbg(priv->adapter->dev,
697  "info: post association, re-enabling data flow\n");
698 
699  /* Reset SNR/NF/RSSI values */
700  priv->data_rssi_last = 0;
701  priv->data_nf_last = 0;
702  priv->data_rssi_avg = 0;
703  priv->data_nf_avg = 0;
704  priv->bcn_rssi_last = 0;
705  priv->bcn_nf_last = 0;
706  priv->bcn_rssi_avg = 0;
707  priv->bcn_nf_avg = 0;
708  priv->rxpd_rate = 0;
709  priv->rxpd_htinfo = 0;
710 
711  mwifiex_save_curr_bcn(priv);
712 
713  priv->adapter->dbg.num_cmd_assoc_success++;
714 
715  dev_dbg(priv->adapter->dev, "info: ASSOC_RESP: associated\n");
716 
717  /* Add the ra_list here for infra mode as there will be only 1 ra
718  always */
719  mwifiex_ralist_add(priv,
720  priv->curr_bss_params.bss_descriptor.mac_address);
721 
722  if (!netif_carrier_ok(priv->netdev))
723  netif_carrier_on(priv->netdev);
724  if (netif_queue_stopped(priv->netdev))
725  netif_wake_queue(priv->netdev);
726 
727  if (priv->sec_info.wpa_enabled || priv->sec_info.wpa2_enabled)
728  priv->scan_block = true;
729 
730 done:
731  /* Need to indicate IOCTL complete */
732  if (adapter->curr_cmd->wait_q_enabled) {
733  if (ret)
734  adapter->cmd_wait_q.status = -1;
735  else
736  adapter->cmd_wait_q.status = 0;
737  }
738 
739  return ret;
740 }
741 
742 /*
743  * This function prepares command for ad-hoc start.
744  *
745  * Driver will fill up SSID, BSS mode, IBSS parameters, physical
746  * parameters, probe delay, and capability information. Firmware
747  * will fill up beacon period, basic rates and operational rates.
748  *
749  * In addition, the following TLVs are added -
750  * - Channel TLV
751  * - Vendor specific IE
752  * - WPA/WPA2 IE
753  * - HT Capabilities IE
754  * - HT Information IE
755  *
756  * Preparation also includes -
757  * - Setting command ID and proper size
758  * - Ensuring correct endian-ness
759  */
760 int
762  struct host_cmd_ds_command *cmd,
763  struct cfg80211_ssid *req_ssid)
764 {
765  int rsn_ie_len = 0;
766  struct mwifiex_adapter *adapter = priv->adapter;
767  struct host_cmd_ds_802_11_ad_hoc_start *adhoc_start =
768  &cmd->params.adhoc_start;
769  struct mwifiex_bssdescriptor *bss_desc;
770  u32 cmd_append_size = 0;
771  u32 i;
772  u16 tmp_cap;
773  struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
774  u8 radio_type;
775 
777  struct mwifiex_ie_types_htinfo *ht_info;
778  u8 *pos = (u8 *) adhoc_start +
779  sizeof(struct host_cmd_ds_802_11_ad_hoc_start);
780 
781  if (!adapter)
782  return -1;
783 
785 
786  bss_desc = &priv->curr_bss_params.bss_descriptor;
787  priv->attempted_bss_desc = bss_desc;
788 
789  /*
790  * Fill in the parameters for 2 data structures:
791  * 1. struct host_cmd_ds_802_11_ad_hoc_start command
792  * 2. bss_desc
793  * Driver will fill up SSID, bss_mode,IBSS param, Physical Param,
794  * probe delay, and Cap info.
795  * Firmware will fill up beacon period, Basic rates
796  * and operational rates.
797  */
798 
799  memset(adhoc_start->ssid, 0, IEEE80211_MAX_SSID_LEN);
800 
801  memcpy(adhoc_start->ssid, req_ssid->ssid, req_ssid->ssid_len);
802 
803  dev_dbg(adapter->dev, "info: ADHOC_S_CMD: SSID = %s\n",
804  adhoc_start->ssid);
805 
806  memset(bss_desc->ssid.ssid, 0, IEEE80211_MAX_SSID_LEN);
807  memcpy(bss_desc->ssid.ssid, req_ssid->ssid, req_ssid->ssid_len);
808 
809  bss_desc->ssid.ssid_len = req_ssid->ssid_len;
810 
811  /* Set the BSS mode */
812  adhoc_start->bss_mode = HostCmd_BSS_MODE_IBSS;
813  bss_desc->bss_mode = NL80211_IFTYPE_ADHOC;
814  adhoc_start->beacon_period = cpu_to_le16(priv->beacon_period);
815  bss_desc->beacon_period = priv->beacon_period;
816 
817  /* Set Physical param set */
818 /* Parameter IE Id */
819 #define DS_PARA_IE_ID 3
820 /* Parameter IE length */
821 #define DS_PARA_IE_LEN 1
822 
823  adhoc_start->phy_param_set.ds_param_set.element_id = DS_PARA_IE_ID;
824  adhoc_start->phy_param_set.ds_param_set.len = DS_PARA_IE_LEN;
825 
826  if (!mwifiex_get_cfp(priv, adapter->adhoc_start_band,
827  (u16) priv->adhoc_channel, 0)) {
828  struct mwifiex_chan_freq_power *cfp;
829  cfp = mwifiex_get_cfp(priv, adapter->adhoc_start_band,
831  if (cfp)
832  priv->adhoc_channel = (u8) cfp->channel;
833  }
834 
835  if (!priv->adhoc_channel) {
836  dev_err(adapter->dev, "ADHOC_S_CMD: adhoc_channel cannot be 0\n");
837  return -1;
838  }
839 
840  dev_dbg(adapter->dev, "info: ADHOC_S_CMD: creating ADHOC on channel %d\n",
841  priv->adhoc_channel);
842 
843  priv->curr_bss_params.bss_descriptor.channel = priv->adhoc_channel;
844  priv->curr_bss_params.band = adapter->adhoc_start_band;
845 
846  bss_desc->channel = priv->adhoc_channel;
847  adhoc_start->phy_param_set.ds_param_set.current_chan =
848  priv->adhoc_channel;
849 
850  memcpy(&bss_desc->phy_param_set, &adhoc_start->phy_param_set,
851  sizeof(union ieee_types_phy_param_set));
852 
853  /* Set IBSS param set */
854 /* IBSS parameter IE Id */
855 #define IBSS_PARA_IE_ID 6
856 /* IBSS parameter IE length */
857 #define IBSS_PARA_IE_LEN 2
858 
859  adhoc_start->ss_param_set.ibss_param_set.element_id = IBSS_PARA_IE_ID;
860  adhoc_start->ss_param_set.ibss_param_set.len = IBSS_PARA_IE_LEN;
861  adhoc_start->ss_param_set.ibss_param_set.atim_window
862  = cpu_to_le16(priv->atim_window);
863  memcpy(&bss_desc->ss_param_set, &adhoc_start->ss_param_set,
864  sizeof(union ieee_types_ss_param_set));
865 
866  /* Set Capability info */
868  tmp_cap = le16_to_cpu(adhoc_start->cap_info_bitmap);
869  tmp_cap &= ~WLAN_CAPABILITY_ESS;
870  tmp_cap |= WLAN_CAPABILITY_IBSS;
871 
872  /* Set up privacy in bss_desc */
873  if (priv->sec_info.encryption_mode) {
874  /* Ad-Hoc capability privacy on */
875  dev_dbg(adapter->dev,
876  "info: ADHOC_S_CMD: wep_status set privacy to WEP\n");
878  tmp_cap |= WLAN_CAPABILITY_PRIVACY;
879  } else {
880  dev_dbg(adapter->dev, "info: ADHOC_S_CMD: wep_status NOT set,"
881  " setting privacy to ACCEPT ALL\n");
883  }
884 
885  memset(adhoc_start->data_rate, 0, sizeof(adhoc_start->data_rate));
886  mwifiex_get_active_data_rates(priv, adhoc_start->data_rate);
887  if ((adapter->adhoc_start_band & BAND_G) &&
891  &priv->curr_pkt_filter)) {
892  dev_err(adapter->dev,
893  "ADHOC_S_CMD: G Protection config failed\n");
894  return -1;
895  }
896  }
897  /* Find the last non zero */
898  for (i = 0; i < sizeof(adhoc_start->data_rate); i++)
899  if (!adhoc_start->data_rate[i])
900  break;
901 
902  priv->curr_bss_params.num_of_rates = i;
903 
904  /* Copy the ad-hoc creating rates into Current BSS rate structure */
905  memcpy(&priv->curr_bss_params.data_rates,
906  &adhoc_start->data_rate, priv->curr_bss_params.num_of_rates);
907 
908  dev_dbg(adapter->dev, "info: ADHOC_S_CMD: rates=%02x %02x %02x %02x\n",
909  adhoc_start->data_rate[0], adhoc_start->data_rate[1],
910  adhoc_start->data_rate[2], adhoc_start->data_rate[3]);
911 
912  dev_dbg(adapter->dev, "info: ADHOC_S_CMD: AD-HOC Start command is ready\n");
913 
914  if (IS_SUPPORT_MULTI_BANDS(adapter)) {
915  /* Append a channel TLV */
916  chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
917  chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
918  chan_tlv->header.len =
920 
921  memset(chan_tlv->chan_scan_param, 0x00,
922  sizeof(struct mwifiex_chan_scan_param_set));
923  chan_tlv->chan_scan_param[0].chan_number =
924  (u8) priv->curr_bss_params.bss_descriptor.channel;
925 
926  dev_dbg(adapter->dev, "info: ADHOC_S_CMD: TLV Chan = %d\n",
927  chan_tlv->chan_scan_param[0].chan_number);
928 
929  chan_tlv->chan_scan_param[0].radio_type
931  if (adapter->adhoc_start_band & BAND_GN ||
932  adapter->adhoc_start_band & BAND_AN) {
933  if (adapter->sec_chan_offset ==
935  chan_tlv->chan_scan_param[0].radio_type |=
937  else if (adapter->sec_chan_offset ==
939  chan_tlv->chan_scan_param[0].radio_type |=
941  }
942  dev_dbg(adapter->dev, "info: ADHOC_S_CMD: TLV Band = %d\n",
943  chan_tlv->chan_scan_param[0].radio_type);
944  pos += sizeof(chan_tlv->header) +
945  sizeof(struct mwifiex_chan_scan_param_set);
946  cmd_append_size +=
947  sizeof(chan_tlv->header) +
948  sizeof(struct mwifiex_chan_scan_param_set);
949  }
950 
951  /* Append vendor specific IE TLV */
952  cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
954 
955  if (priv->sec_info.wpa_enabled) {
956  rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
957  if (rsn_ie_len == -1)
958  return -1;
959  cmd_append_size += rsn_ie_len;
960  }
961 
962  if (adapter->adhoc_11n_enabled) {
963  /* Fill HT CAPABILITY */
964  ht_cap = (struct mwifiex_ie_types_htcap *) pos;
965  memset(ht_cap, 0, sizeof(struct mwifiex_ie_types_htcap));
966  ht_cap->header.type = cpu_to_le16(WLAN_EID_HT_CAPABILITY);
967  ht_cap->header.len =
968  cpu_to_le16(sizeof(struct ieee80211_ht_cap));
969  radio_type = mwifiex_band_to_radio_type(
970  priv->adapter->config_bands);
971  mwifiex_fill_cap_info(priv, radio_type, ht_cap);
972 
973  pos += sizeof(struct mwifiex_ie_types_htcap);
974  cmd_append_size += sizeof(struct mwifiex_ie_types_htcap);
975 
976  /* Fill HT INFORMATION */
977  ht_info = (struct mwifiex_ie_types_htinfo *) pos;
978  memset(ht_info, 0, sizeof(struct mwifiex_ie_types_htinfo));
979  ht_info->header.type = cpu_to_le16(WLAN_EID_HT_OPERATION);
980  ht_info->header.len =
981  cpu_to_le16(sizeof(struct ieee80211_ht_operation));
982 
983  ht_info->ht_oper.primary_chan =
984  (u8) priv->curr_bss_params.bss_descriptor.channel;
985  if (adapter->sec_chan_offset) {
986  ht_info->ht_oper.ht_param = adapter->sec_chan_offset;
987  ht_info->ht_oper.ht_param |=
989  }
990  ht_info->ht_oper.operation_mode =
992  ht_info->ht_oper.basic_set[0] = 0xff;
993  pos += sizeof(struct mwifiex_ie_types_htinfo);
994  cmd_append_size +=
995  sizeof(struct mwifiex_ie_types_htinfo);
996  }
997 
998  cmd->size =
1000  + S_DS_GEN + cmd_append_size));
1001 
1002  if (adapter->adhoc_start_band == BAND_B)
1003  tmp_cap &= ~WLAN_CAPABILITY_SHORT_SLOT_TIME;
1004  else
1006 
1007  adhoc_start->cap_info_bitmap = cpu_to_le16(tmp_cap);
1008 
1009  return 0;
1010 }
1011 
1012 /*
1013  * This function prepares command for ad-hoc join.
1014  *
1015  * Most of the parameters are set up by copying from the target BSS descriptor
1016  * from the scan response.
1017  *
1018  * In addition, the following TLVs are added -
1019  * - Channel TLV
1020  * - Vendor specific IE
1021  * - WPA/WPA2 IE
1022  * - 11n IE
1023  *
1024  * Preparation also includes -
1025  * - Setting command ID and proper size
1026  * - Ensuring correct endian-ness
1027  */
1028 int
1030  struct host_cmd_ds_command *cmd,
1031  struct mwifiex_bssdescriptor *bss_desc)
1032 {
1033  int rsn_ie_len = 0;
1034  struct host_cmd_ds_802_11_ad_hoc_join *adhoc_join =
1035  &cmd->params.adhoc_join;
1036  struct mwifiex_ie_types_chan_list_param_set *chan_tlv;
1037  u32 cmd_append_size = 0;
1038  u16 tmp_cap;
1039  u32 i, rates_size = 0;
1040  u16 curr_pkt_filter;
1041  u8 *pos =
1042  (u8 *) adhoc_join +
1043  sizeof(struct host_cmd_ds_802_11_ad_hoc_join);
1044 
1045 /* Use G protection */
1046 #define USE_G_PROTECTION 0x02
1047  if (bss_desc->erp_flags & USE_G_PROTECTION) {
1048  curr_pkt_filter =
1049  priv->
1050  curr_pkt_filter | HostCmd_ACT_MAC_ADHOC_G_PROTECTION_ON;
1051 
1054  &curr_pkt_filter)) {
1055  dev_err(priv->adapter->dev,
1056  "ADHOC_J_CMD: G Protection config failed\n");
1057  return -1;
1058  }
1059  }
1060 
1061  priv->attempted_bss_desc = bss_desc;
1062 
1064 
1065  adhoc_join->bss_descriptor.bss_mode = HostCmd_BSS_MODE_IBSS;
1066 
1067  adhoc_join->bss_descriptor.beacon_period
1068  = cpu_to_le16(bss_desc->beacon_period);
1069 
1070  memcpy(&adhoc_join->bss_descriptor.bssid,
1071  &bss_desc->mac_address, ETH_ALEN);
1072 
1073  memcpy(&adhoc_join->bss_descriptor.ssid,
1074  &bss_desc->ssid.ssid, bss_desc->ssid.ssid_len);
1075 
1076  memcpy(&adhoc_join->bss_descriptor.phy_param_set,
1077  &bss_desc->phy_param_set,
1078  sizeof(union ieee_types_phy_param_set));
1079 
1080  memcpy(&adhoc_join->bss_descriptor.ss_param_set,
1081  &bss_desc->ss_param_set, sizeof(union ieee_types_ss_param_set));
1082 
1083  tmp_cap = bss_desc->cap_info_bitmap;
1084 
1085  tmp_cap &= CAPINFO_MASK;
1086 
1087  dev_dbg(priv->adapter->dev,
1088  "info: ADHOC_J_CMD: tmp_cap=%4X CAPINFO_MASK=%4lX\n",
1089  tmp_cap, CAPINFO_MASK);
1090 
1091  /* Information on BSSID descriptor passed to FW */
1092  dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: BSSID=%pM, SSID='%s'\n",
1093  adhoc_join->bss_descriptor.bssid,
1094  adhoc_join->bss_descriptor.ssid);
1095 
1096  for (i = 0; bss_desc->supported_rates[i] &&
1098  i++)
1099  ;
1100  rates_size = i;
1101 
1102  /* Copy Data Rates from the Rates recorded in scan response */
1103  memset(adhoc_join->bss_descriptor.data_rates, 0,
1104  sizeof(adhoc_join->bss_descriptor.data_rates));
1105  memcpy(adhoc_join->bss_descriptor.data_rates,
1106  bss_desc->supported_rates, rates_size);
1107 
1108  /* Copy the adhoc join rates into Current BSS state structure */
1109  priv->curr_bss_params.num_of_rates = rates_size;
1110  memcpy(&priv->curr_bss_params.data_rates, bss_desc->supported_rates,
1111  rates_size);
1112 
1113  /* Copy the channel information */
1114  priv->curr_bss_params.bss_descriptor.channel = bss_desc->channel;
1115  priv->curr_bss_params.band = (u8) bss_desc->bss_band;
1116 
1117  if (priv->sec_info.wep_enabled || priv->sec_info.wpa_enabled)
1118  tmp_cap |= WLAN_CAPABILITY_PRIVACY;
1119 
1120  if (IS_SUPPORT_MULTI_BANDS(priv->adapter)) {
1121  /* Append a channel TLV */
1122  chan_tlv = (struct mwifiex_ie_types_chan_list_param_set *) pos;
1123  chan_tlv->header.type = cpu_to_le16(TLV_TYPE_CHANLIST);
1124  chan_tlv->header.len =
1125  cpu_to_le16(sizeof(struct mwifiex_chan_scan_param_set));
1126 
1127  memset(chan_tlv->chan_scan_param, 0x00,
1128  sizeof(struct mwifiex_chan_scan_param_set));
1129  chan_tlv->chan_scan_param[0].chan_number =
1130  (bss_desc->phy_param_set.ds_param_set.current_chan);
1131  dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: TLV Chan=%d\n",
1132  chan_tlv->chan_scan_param[0].chan_number);
1133 
1134  chan_tlv->chan_scan_param[0].radio_type =
1135  mwifiex_band_to_radio_type((u8) bss_desc->bss_band);
1136 
1137  dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: TLV Band=%d\n",
1138  chan_tlv->chan_scan_param[0].radio_type);
1139  pos += sizeof(chan_tlv->header) +
1140  sizeof(struct mwifiex_chan_scan_param_set);
1141  cmd_append_size += sizeof(chan_tlv->header) +
1142  sizeof(struct mwifiex_chan_scan_param_set);
1143  }
1144 
1145  if (priv->sec_info.wpa_enabled)
1146  rsn_ie_len = mwifiex_append_rsn_ie_wpa_wpa2(priv, &pos);
1147  if (rsn_ie_len == -1)
1148  return -1;
1149  cmd_append_size += rsn_ie_len;
1150 
1151  if (ISSUPP_11NENABLED(priv->adapter->fw_cap_info))
1152  cmd_append_size += mwifiex_cmd_append_11n_tlv(priv,
1153  bss_desc, &pos);
1154 
1155  /* Append vendor specific IE TLV */
1156  cmd_append_size += mwifiex_cmd_append_vsie_tlv(priv,
1157  MWIFIEX_VSIE_MASK_ADHOC, &pos);
1158 
1159  cmd->size = cpu_to_le16
1160  ((u16) (sizeof(struct host_cmd_ds_802_11_ad_hoc_join)
1161  + S_DS_GEN + cmd_append_size));
1162 
1163  adhoc_join->bss_descriptor.cap_info_bitmap = cpu_to_le16(tmp_cap);
1164 
1165  return 0;
1166 }
1167 
1168 /*
1169  * This function handles the command response of ad-hoc start and
1170  * ad-hoc join.
1171  *
1172  * The function generates a device-connected event to notify
1173  * the applications, in case of successful ad-hoc start/join, and
1174  * saves the beacon buffer.
1175  */
1177  struct host_cmd_ds_command *resp)
1178 {
1179  int ret = 0;
1180  struct mwifiex_adapter *adapter = priv->adapter;
1181  struct host_cmd_ds_802_11_ad_hoc_result *adhoc_result;
1182  struct mwifiex_bssdescriptor *bss_desc;
1183  u16 reason_code;
1184 
1185  adhoc_result = &resp->params.adhoc_result;
1186 
1187  bss_desc = priv->attempted_bss_desc;
1188 
1189  /* Join result code 0 --> SUCCESS */
1190  reason_code = le16_to_cpu(resp->result);
1191  if (reason_code) {
1192  dev_err(priv->adapter->dev, "ADHOC_RESP: failed\n");
1193  if (priv->media_connected)
1194  mwifiex_reset_connect_state(priv, reason_code);
1195 
1196  memset(&priv->curr_bss_params.bss_descriptor,
1197  0x00, sizeof(struct mwifiex_bssdescriptor));
1198 
1199  ret = -1;
1200  goto done;
1201  }
1202 
1203  /* Send a Media Connected event, according to the Spec */
1204  priv->media_connected = true;
1205 
1207  dev_dbg(priv->adapter->dev, "info: ADHOC_S_RESP %s\n",
1208  bss_desc->ssid.ssid);
1209 
1210  /* Update the created network descriptor with the new BSSID */
1211  memcpy(bss_desc->mac_address,
1212  adhoc_result->bssid, ETH_ALEN);
1213 
1214  priv->adhoc_state = ADHOC_STARTED;
1215  } else {
1216  /*
1217  * Now the join cmd should be successful.
1218  * If BSSID has changed use SSID to compare instead of BSSID
1219  */
1220  dev_dbg(priv->adapter->dev, "info: ADHOC_J_RESP %s\n",
1221  bss_desc->ssid.ssid);
1222 
1223  /*
1224  * Make a copy of current BSSID descriptor, only needed for
1225  * join since the current descriptor is already being used
1226  * for adhoc start
1227  */
1228  memcpy(&priv->curr_bss_params.bss_descriptor,
1229  bss_desc, sizeof(struct mwifiex_bssdescriptor));
1230 
1231  priv->adhoc_state = ADHOC_JOINED;
1232  }
1233 
1234  dev_dbg(priv->adapter->dev, "info: ADHOC_RESP: channel = %d\n",
1235  priv->adhoc_channel);
1236  dev_dbg(priv->adapter->dev, "info: ADHOC_RESP: BSSID = %pM\n",
1237  priv->curr_bss_params.bss_descriptor.mac_address);
1238 
1239  if (!netif_carrier_ok(priv->netdev))
1240  netif_carrier_on(priv->netdev);
1241  if (netif_queue_stopped(priv->netdev))
1242  netif_wake_queue(priv->netdev);
1243 
1244  mwifiex_save_curr_bcn(priv);
1245 
1246 done:
1247  /* Need to indicate IOCTL complete */
1248  if (adapter->curr_cmd->wait_q_enabled) {
1249  if (ret)
1250  adapter->cmd_wait_q.status = -1;
1251  else
1252  adapter->cmd_wait_q.status = 0;
1253 
1254  }
1255 
1256  return ret;
1257 }
1258 
1259 /*
1260  * This function associates to a specific BSS discovered in a scan.
1261  *
1262  * It clears any past association response stored for application
1263  * retrieval and calls the command preparation routine to send the
1264  * command to firmware.
1265  */
1267  struct mwifiex_bssdescriptor *bss_desc)
1268 {
1269  u8 current_bssid[ETH_ALEN];
1270 
1271  /* Return error if the adapter or table entry is not marked as infra */
1272  if ((priv->bss_mode != NL80211_IFTYPE_STATION) ||
1273  (bss_desc->bss_mode != NL80211_IFTYPE_STATION))
1274  return -1;
1275 
1276  memcpy(&current_bssid,
1277  &priv->curr_bss_params.bss_descriptor.mac_address,
1278  sizeof(current_bssid));
1279 
1280  /* Clear any past association response stored for application
1281  retrieval */
1282  priv->assoc_rsp_size = 0;
1283 
1285  HostCmd_ACT_GEN_SET, 0, bss_desc);
1286 }
1287 
1288 /*
1289  * This function starts an ad-hoc network.
1290  *
1291  * It calls the command preparation routine to send the command to firmware.
1292  */
1293 int
1295  struct cfg80211_ssid *adhoc_ssid)
1296 {
1297  dev_dbg(priv->adapter->dev, "info: Adhoc Channel = %d\n",
1298  priv->adhoc_channel);
1299  dev_dbg(priv->adapter->dev, "info: curr_bss_params.channel = %d\n",
1300  priv->curr_bss_params.bss_descriptor.channel);
1301  dev_dbg(priv->adapter->dev, "info: curr_bss_params.band = %d\n",
1302  priv->curr_bss_params.band);
1303 
1305  HostCmd_ACT_GEN_SET, 0, adhoc_ssid);
1306 }
1307 
1308 /*
1309  * This function joins an ad-hoc network found in a previous scan.
1310  *
1311  * It calls the command preparation routine to send the command to firmware,
1312  * if already not connected to the requested SSID.
1313  */
1315  struct mwifiex_bssdescriptor *bss_desc)
1316 {
1317  dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid =%s\n",
1318  priv->curr_bss_params.bss_descriptor.ssid.ssid);
1319  dev_dbg(priv->adapter->dev, "info: adhoc join: curr_bss ssid_len =%u\n",
1320  priv->curr_bss_params.bss_descriptor.ssid.ssid_len);
1321  dev_dbg(priv->adapter->dev, "info: adhoc join: ssid =%s\n",
1322  bss_desc->ssid.ssid);
1323  dev_dbg(priv->adapter->dev, "info: adhoc join: ssid_len =%u\n",
1324  bss_desc->ssid.ssid_len);
1325 
1326  /* Check if the requested SSID is already joined */
1327  if (priv->curr_bss_params.bss_descriptor.ssid.ssid_len &&
1328  !mwifiex_ssid_cmp(&bss_desc->ssid,
1329  &priv->curr_bss_params.bss_descriptor.ssid) &&
1330  (priv->curr_bss_params.bss_descriptor.bss_mode ==
1332  dev_dbg(priv->adapter->dev, "info: ADHOC_J_CMD: new ad-hoc SSID"
1333  " is the same as current; not attempting to re-join\n");
1334  return -1;
1335  }
1336 
1337  dev_dbg(priv->adapter->dev, "info: curr_bss_params.channel = %d\n",
1338  priv->curr_bss_params.bss_descriptor.channel);
1339  dev_dbg(priv->adapter->dev, "info: curr_bss_params.band = %c\n",
1340  priv->curr_bss_params.band);
1341 
1343  HostCmd_ACT_GEN_SET, 0, bss_desc);
1344 }
1345 
1346 /*
1347  * This function deauthenticates/disconnects from infra network by sending
1348  * deauthentication request.
1349  */
1350 static int mwifiex_deauthenticate_infra(struct mwifiex_private *priv, u8 *mac)
1351 {
1353  int ret;
1354 
1355  if (!mac || is_zero_ether_addr(mac))
1356  memcpy(mac_address,
1357  priv->curr_bss_params.bss_descriptor.mac_address,
1358  ETH_ALEN);
1359  else
1360  memcpy(mac_address, mac, ETH_ALEN);
1361 
1363  HostCmd_ACT_GEN_SET, 0, mac_address);
1364 
1365  return ret;
1366 }
1367 
1368 /*
1369  * This function deauthenticates/disconnects from a BSS.
1370  *
1371  * In case of infra made, it sends deauthentication request, and
1372  * in case of ad-hoc mode, a stop network request is sent to the firmware.
1373  * In AP mode, a command to stop bss is sent to firmware.
1374  */
1376 {
1377  if (!priv->media_connected)
1378  return 0;
1379 
1380  switch (priv->bss_mode) {
1382  return mwifiex_deauthenticate_infra(priv, mac);
1383  case NL80211_IFTYPE_ADHOC:
1384  return mwifiex_send_cmd_sync(priv,
1387  case NL80211_IFTYPE_AP:
1390  default:
1391  break;
1392  }
1393 
1394  return 0;
1395 }
1397 
1398 /*
1399  * This function converts band to radio type used in channel TLV.
1400  */
1401 u8
1403 {
1404  switch (band) {
1405  case BAND_A:
1406  case BAND_AN:
1407  case BAND_A | BAND_AN:
1409  case BAND_B:
1410  case BAND_G:
1411  case BAND_B | BAND_G:
1412  default:
1414  }
1415 }