Commit | Line | Data |
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ede98bfa AP |
1 | /* |
2 | * Marvell Wireless LAN device driver: management IE handling- setting and | |
3 | * deleting IE. | |
4 | * | |
5 | * Copyright (C) 2012, Marvell International Ltd. | |
6 | * | |
7 | * This software file (the "File") is distributed by Marvell International | |
8 | * Ltd. under the terms of the GNU General Public License Version 2, June 1991 | |
9 | * (the "License"). You may use, redistribute and/or modify this File in | |
10 | * accordance with the terms and conditions of the License, a copy of which | |
11 | * is available by writing to the Free Software Foundation, Inc., | |
12 | * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA or on the | |
13 | * worldwide web at http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt. | |
14 | * | |
15 | * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE | |
16 | * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE | |
17 | * ARE EXPRESSLY DISCLAIMED. The License provides additional details about | |
18 | * this warranty disclaimer. | |
19 | */ | |
20 | ||
21 | #include "main.h" | |
22 | ||
23 | /* This function checks if current IE index is used by any on other interface. | |
24 | * Return: -1: yes, current IE index is used by someone else. | |
25 | * 0: no, current IE index is NOT used by other interface. | |
26 | */ | |
27 | static int | |
28 | mwifiex_ie_index_used_by_other_intf(struct mwifiex_private *priv, u16 idx) | |
29 | { | |
30 | int i; | |
31 | struct mwifiex_adapter *adapter = priv->adapter; | |
32 | struct mwifiex_ie *ie; | |
33 | ||
34 | for (i = 0; i < adapter->priv_num; i++) { | |
35 | if (adapter->priv[i] != priv) { | |
36 | ie = &adapter->priv[i]->mgmt_ie[idx]; | |
37 | if (ie->mgmt_subtype_mask && ie->ie_length) | |
38 | return -1; | |
39 | } | |
40 | } | |
41 | ||
42 | return 0; | |
43 | } | |
44 | ||
45 | /* Get unused IE index. This index will be used for setting new IE */ | |
46 | static int | |
47 | mwifiex_ie_get_autoidx(struct mwifiex_private *priv, u16 subtype_mask, | |
48 | struct mwifiex_ie *ie, u16 *index) | |
49 | { | |
50 | u16 mask, len, i; | |
51 | ||
52 | for (i = 0; i < priv->adapter->max_mgmt_ie_index; i++) { | |
53 | mask = le16_to_cpu(priv->mgmt_ie[i].mgmt_subtype_mask); | |
bd6aa030 | 54 | len = le16_to_cpu(ie->ie_length); |
ede98bfa AP |
55 | |
56 | if (mask == MWIFIEX_AUTO_IDX_MASK) | |
57 | continue; | |
58 | ||
59 | if (mask == subtype_mask) { | |
60 | if (len > IEEE_MAX_IE_SIZE) | |
61 | continue; | |
62 | ||
63 | *index = i; | |
64 | return 0; | |
65 | } | |
66 | ||
67 | if (!priv->mgmt_ie[i].ie_length) { | |
68 | if (mwifiex_ie_index_used_by_other_intf(priv, i)) | |
69 | continue; | |
70 | ||
71 | *index = i; | |
72 | return 0; | |
73 | } | |
74 | } | |
75 | ||
76 | return -1; | |
77 | } | |
78 | ||
79 | /* This function prepares IE data buffer for command to be sent to FW */ | |
80 | static int | |
81 | mwifiex_update_autoindex_ies(struct mwifiex_private *priv, | |
82 | struct mwifiex_ie_list *ie_list) | |
83 | { | |
84 | u16 travel_len, index, mask; | |
85 | s16 input_len; | |
86 | struct mwifiex_ie *ie; | |
87 | u8 *tmp; | |
88 | ||
89 | input_len = le16_to_cpu(ie_list->len); | |
6b21a69f | 90 | travel_len = sizeof(struct mwifiex_ie_types_header); |
ede98bfa AP |
91 | |
92 | ie_list->len = 0; | |
93 | ||
94 | while (input_len > 0) { | |
95 | ie = (struct mwifiex_ie *)(((u8 *)ie_list) + travel_len); | |
96 | input_len -= le16_to_cpu(ie->ie_length) + MWIFIEX_IE_HDR_SIZE; | |
97 | travel_len += le16_to_cpu(ie->ie_length) + MWIFIEX_IE_HDR_SIZE; | |
98 | ||
99 | index = le16_to_cpu(ie->ie_index); | |
100 | mask = le16_to_cpu(ie->mgmt_subtype_mask); | |
101 | ||
102 | if (index == MWIFIEX_AUTO_IDX_MASK) { | |
103 | /* automatic addition */ | |
104 | if (mwifiex_ie_get_autoidx(priv, mask, ie, &index)) | |
105 | return -1; | |
106 | if (index == MWIFIEX_AUTO_IDX_MASK) | |
107 | return -1; | |
108 | ||
109 | tmp = (u8 *)&priv->mgmt_ie[index].ie_buffer; | |
ede98bfa | 110 | memcpy(tmp, &ie->ie_buffer, le16_to_cpu(ie->ie_length)); |
bd6aa030 | 111 | priv->mgmt_ie[index].ie_length = ie->ie_length; |
ede98bfa AP |
112 | priv->mgmt_ie[index].ie_index = cpu_to_le16(index); |
113 | priv->mgmt_ie[index].mgmt_subtype_mask = | |
114 | cpu_to_le16(mask); | |
115 | ||
116 | ie->ie_index = cpu_to_le16(index); | |
ede98bfa AP |
117 | } else { |
118 | if (mask != MWIFIEX_DELETE_MASK) | |
119 | return -1; | |
120 | /* | |
121 | * Check if this index is being used on any | |
122 | * other interface. | |
123 | */ | |
124 | if (mwifiex_ie_index_used_by_other_intf(priv, index)) | |
125 | return -1; | |
126 | ||
127 | ie->ie_length = 0; | |
128 | memcpy(&priv->mgmt_ie[index], ie, | |
129 | sizeof(struct mwifiex_ie)); | |
130 | } | |
131 | ||
132 | le16_add_cpu(&ie_list->len, | |
133 | le16_to_cpu(priv->mgmt_ie[index].ie_length) + | |
134 | MWIFIEX_IE_HDR_SIZE); | |
135 | } | |
136 | ||
137 | if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP) | |
138 | return mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG, | |
139 | HostCmd_ACT_GEN_SET, | |
140 | UAP_CUSTOM_IE_I, ie_list); | |
141 | ||
142 | return 0; | |
143 | } | |
f31acabe AP |
144 | |
145 | /* Copy individual custom IEs for beacon, probe response and assoc response | |
146 | * and prepare single structure for IE setting. | |
147 | * This function also updates allocated IE indices from driver. | |
148 | */ | |
149 | static int | |
150 | mwifiex_update_uap_custom_ie(struct mwifiex_private *priv, | |
151 | struct mwifiex_ie *beacon_ie, u16 *beacon_idx, | |
152 | struct mwifiex_ie *pr_ie, u16 *probe_idx, | |
153 | struct mwifiex_ie *ar_ie, u16 *assoc_idx) | |
154 | { | |
155 | struct mwifiex_ie_list *ap_custom_ie; | |
156 | u8 *pos; | |
157 | u16 len; | |
158 | int ret; | |
159 | ||
fd0fc521 | 160 | ap_custom_ie = kzalloc(sizeof(*ap_custom_ie), GFP_KERNEL); |
f31acabe AP |
161 | if (!ap_custom_ie) |
162 | return -ENOMEM; | |
163 | ||
164 | ap_custom_ie->type = cpu_to_le16(TLV_TYPE_MGMT_IE); | |
165 | pos = (u8 *)ap_custom_ie->ie_list; | |
166 | ||
167 | if (beacon_ie) { | |
168 | len = sizeof(struct mwifiex_ie) - IEEE_MAX_IE_SIZE + | |
169 | le16_to_cpu(beacon_ie->ie_length); | |
170 | memcpy(pos, beacon_ie, len); | |
171 | pos += len; | |
172 | le16_add_cpu(&ap_custom_ie->len, len); | |
173 | } | |
174 | if (pr_ie) { | |
175 | len = sizeof(struct mwifiex_ie) - IEEE_MAX_IE_SIZE + | |
176 | le16_to_cpu(pr_ie->ie_length); | |
177 | memcpy(pos, pr_ie, len); | |
178 | pos += len; | |
179 | le16_add_cpu(&ap_custom_ie->len, len); | |
180 | } | |
181 | if (ar_ie) { | |
182 | len = sizeof(struct mwifiex_ie) - IEEE_MAX_IE_SIZE + | |
183 | le16_to_cpu(ar_ie->ie_length); | |
184 | memcpy(pos, ar_ie, len); | |
185 | pos += len; | |
186 | le16_add_cpu(&ap_custom_ie->len, len); | |
187 | } | |
188 | ||
189 | ret = mwifiex_update_autoindex_ies(priv, ap_custom_ie); | |
190 | ||
191 | pos = (u8 *)(&ap_custom_ie->ie_list[0].ie_index); | |
192 | if (beacon_ie && *beacon_idx == MWIFIEX_AUTO_IDX_MASK) { | |
193 | /* save beacon ie index after auto-indexing */ | |
194 | *beacon_idx = le16_to_cpu(ap_custom_ie->ie_list[0].ie_index); | |
195 | len = sizeof(*beacon_ie) - IEEE_MAX_IE_SIZE + | |
196 | le16_to_cpu(beacon_ie->ie_length); | |
197 | pos += len; | |
198 | } | |
199 | if (pr_ie && le16_to_cpu(pr_ie->ie_index) == MWIFIEX_AUTO_IDX_MASK) { | |
200 | /* save probe resp ie index after auto-indexing */ | |
201 | *probe_idx = *((u16 *)pos); | |
202 | len = sizeof(*pr_ie) - IEEE_MAX_IE_SIZE + | |
203 | le16_to_cpu(pr_ie->ie_length); | |
204 | pos += len; | |
205 | } | |
206 | if (ar_ie && le16_to_cpu(ar_ie->ie_index) == MWIFIEX_AUTO_IDX_MASK) | |
207 | /* save assoc resp ie index after auto-indexing */ | |
208 | *assoc_idx = *((u16 *)pos); | |
209 | ||
c9015b24 | 210 | kfree(ap_custom_ie); |
f31acabe AP |
211 | return ret; |
212 | } | |
213 | ||
8a6e2317 SP |
214 | /* This function checks if the vendor specified IE is present in passed buffer |
215 | * and copies it to mwifiex_ie structure. | |
2152fe9c | 216 | * Function takes pointer to struct mwifiex_ie pointer as argument. |
8a6e2317 SP |
217 | * If the vendor specified IE is present then memory is allocated for |
218 | * mwifiex_ie pointer and filled in with IE. Caller should take care of freeing | |
219 | * this memory. | |
2152fe9c | 220 | */ |
8a6e2317 SP |
221 | static int mwifiex_update_vs_ie(const u8 *ies, int ies_len, |
222 | struct mwifiex_ie **ie_ptr, u16 mask, | |
223 | unsigned int oui, u8 oui_type) | |
2152fe9c | 224 | { |
8a6e2317 SP |
225 | struct ieee_types_header *vs_ie; |
226 | struct mwifiex_ie *ie = *ie_ptr; | |
2152fe9c AP |
227 | const u8 *vendor_ie; |
228 | ||
8a6e2317 | 229 | vendor_ie = cfg80211_find_vendor_ie(oui, oui_type, ies, ies_len); |
2152fe9c | 230 | if (vendor_ie) { |
8a6e2317 SP |
231 | if (!*ie_ptr) { |
232 | *ie_ptr = kzalloc(sizeof(struct mwifiex_ie), | |
233 | GFP_KERNEL); | |
234 | if (!*ie_ptr) | |
235 | return -ENOMEM; | |
236 | ie = *ie_ptr; | |
237 | } | |
2152fe9c | 238 | |
8a6e2317 SP |
239 | vs_ie = (struct ieee_types_header *)vendor_ie; |
240 | memcpy(ie->ie_buffer + le16_to_cpu(ie->ie_length), | |
241 | vs_ie, vs_ie->len + 2); | |
242 | le16_add_cpu(&ie->ie_length, vs_ie->len + 2); | |
2152fe9c AP |
243 | ie->mgmt_subtype_mask = cpu_to_le16(mask); |
244 | ie->ie_index = cpu_to_le16(MWIFIEX_AUTO_IDX_MASK); | |
245 | } | |
246 | ||
247 | *ie_ptr = ie; | |
248 | return 0; | |
249 | } | |
250 | ||
ea4c12f0 AP |
251 | /* This function parses beacon IEs, probe response IEs, association response IEs |
252 | * from cfg80211_ap_settings->beacon and sets these IE to FW. | |
f31acabe | 253 | */ |
ea4c12f0 AP |
254 | static int mwifiex_set_mgmt_beacon_data_ies(struct mwifiex_private *priv, |
255 | struct cfg80211_beacon_data *data) | |
f31acabe | 256 | { |
ea4c12f0 | 257 | struct mwifiex_ie *beacon_ie = NULL, *pr_ie = NULL, *ar_ie = NULL; |
f31acabe | 258 | u16 beacon_idx = MWIFIEX_AUTO_IDX_MASK, pr_idx = MWIFIEX_AUTO_IDX_MASK; |
ea4c12f0 | 259 | u16 ar_idx = MWIFIEX_AUTO_IDX_MASK; |
f31acabe AP |
260 | int ret = 0; |
261 | ||
8a6e2317 SP |
262 | if (data->beacon_ies && data->beacon_ies_len) { |
263 | mwifiex_update_vs_ie(data->beacon_ies, data->beacon_ies_len, | |
264 | &beacon_ie, MGMT_MASK_BEACON, | |
265 | WLAN_OUI_MICROSOFT, | |
266 | WLAN_OUI_TYPE_MICROSOFT_WPS); | |
267 | mwifiex_update_vs_ie(data->beacon_ies, data->beacon_ies_len, | |
268 | &beacon_ie, MGMT_MASK_BEACON, | |
269 | WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P); | |
270 | } | |
f31acabe | 271 | |
8a6e2317 SP |
272 | if (data->proberesp_ies && data->proberesp_ies_len) { |
273 | mwifiex_update_vs_ie(data->proberesp_ies, | |
274 | data->proberesp_ies_len, &pr_ie, | |
275 | MGMT_MASK_PROBE_RESP, WLAN_OUI_MICROSOFT, | |
276 | WLAN_OUI_TYPE_MICROSOFT_WPS); | |
277 | mwifiex_update_vs_ie(data->proberesp_ies, | |
278 | data->proberesp_ies_len, &pr_ie, | |
279 | MGMT_MASK_PROBE_RESP, | |
280 | WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P); | |
281 | } | |
f31acabe | 282 | |
8a6e2317 SP |
283 | if (data->assocresp_ies && data->assocresp_ies_len) { |
284 | mwifiex_update_vs_ie(data->assocresp_ies, | |
285 | data->assocresp_ies_len, &ar_ie, | |
286 | MGMT_MASK_ASSOC_RESP | | |
287 | MGMT_MASK_REASSOC_RESP, | |
288 | WLAN_OUI_MICROSOFT, | |
289 | WLAN_OUI_TYPE_MICROSOFT_WPS); | |
290 | mwifiex_update_vs_ie(data->assocresp_ies, | |
291 | data->assocresp_ies_len, &ar_ie, | |
292 | MGMT_MASK_ASSOC_RESP | | |
293 | MGMT_MASK_REASSOC_RESP, WLAN_OUI_WFA, | |
294 | WLAN_OUI_TYPE_WFA_P2P); | |
295 | } | |
f31acabe AP |
296 | |
297 | if (beacon_ie || pr_ie || ar_ie) { | |
298 | ret = mwifiex_update_uap_custom_ie(priv, beacon_ie, | |
299 | &beacon_idx, pr_ie, | |
300 | &pr_idx, ar_ie, &ar_idx); | |
301 | if (ret) | |
302 | goto done; | |
303 | } | |
304 | ||
305 | priv->beacon_idx = beacon_idx; | |
306 | priv->proberesp_idx = pr_idx; | |
307 | priv->assocresp_idx = ar_idx; | |
308 | ||
309 | done: | |
310 | kfree(beacon_ie); | |
311 | kfree(pr_ie); | |
312 | kfree(ar_ie); | |
f31acabe AP |
313 | |
314 | return ret; | |
315 | } | |
40bbc21a | 316 | |
ea4c12f0 AP |
317 | /* This function parses different IEs-tail IEs, beacon IEs, probe response IEs, |
318 | * association response IEs from cfg80211_ap_settings function and sets these IE | |
319 | * to FW. | |
320 | */ | |
321 | int mwifiex_set_mgmt_ies(struct mwifiex_private *priv, | |
322 | struct cfg80211_beacon_data *info) | |
323 | { | |
324 | struct mwifiex_ie *gen_ie; | |
325 | struct ieee_types_header *rsn_ie, *wpa_ie = NULL; | |
326 | u16 rsn_idx = MWIFIEX_AUTO_IDX_MASK, ie_len = 0; | |
327 | const u8 *vendor_ie; | |
328 | ||
329 | if (info->tail && info->tail_len) { | |
330 | gen_ie = kzalloc(sizeof(struct mwifiex_ie), GFP_KERNEL); | |
331 | if (!gen_ie) | |
332 | return -ENOMEM; | |
333 | gen_ie->ie_index = cpu_to_le16(rsn_idx); | |
334 | gen_ie->mgmt_subtype_mask = cpu_to_le16(MGMT_MASK_BEACON | | |
335 | MGMT_MASK_PROBE_RESP | | |
336 | MGMT_MASK_ASSOC_RESP); | |
337 | ||
338 | rsn_ie = (void *)cfg80211_find_ie(WLAN_EID_RSN, | |
339 | info->tail, info->tail_len); | |
340 | if (rsn_ie) { | |
341 | memcpy(gen_ie->ie_buffer, rsn_ie, rsn_ie->len + 2); | |
342 | ie_len = rsn_ie->len + 2; | |
343 | gen_ie->ie_length = cpu_to_le16(ie_len); | |
344 | } | |
345 | ||
346 | vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT, | |
347 | WLAN_OUI_TYPE_MICROSOFT_WPA, | |
348 | info->tail, | |
349 | info->tail_len); | |
350 | if (vendor_ie) { | |
351 | wpa_ie = (struct ieee_types_header *)vendor_ie; | |
352 | memcpy(gen_ie->ie_buffer + ie_len, | |
353 | wpa_ie, wpa_ie->len + 2); | |
354 | ie_len += wpa_ie->len + 2; | |
355 | gen_ie->ie_length = cpu_to_le16(ie_len); | |
356 | } | |
357 | ||
358 | if (rsn_ie || wpa_ie) { | |
359 | if (mwifiex_update_uap_custom_ie(priv, gen_ie, &rsn_idx, | |
360 | NULL, NULL, | |
361 | NULL, NULL)) { | |
362 | kfree(gen_ie); | |
363 | return -1; | |
364 | } | |
365 | priv->rsn_idx = rsn_idx; | |
366 | } | |
367 | ||
368 | kfree(gen_ie); | |
369 | } | |
370 | ||
371 | return mwifiex_set_mgmt_beacon_data_ies(priv, info); | |
372 | } | |
373 | ||
40bbc21a AP |
374 | /* This function removes management IE set */ |
375 | int mwifiex_del_mgmt_ies(struct mwifiex_private *priv) | |
376 | { | |
377 | struct mwifiex_ie *beacon_ie = NULL, *pr_ie = NULL; | |
378 | struct mwifiex_ie *ar_ie = NULL, *rsn_ie = NULL; | |
379 | int ret = 0; | |
380 | ||
381 | if (priv->rsn_idx != MWIFIEX_AUTO_IDX_MASK) { | |
382 | rsn_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL); | |
383 | if (!rsn_ie) | |
384 | return -ENOMEM; | |
385 | ||
386 | rsn_ie->ie_index = cpu_to_le16(priv->rsn_idx); | |
387 | rsn_ie->mgmt_subtype_mask = cpu_to_le16(MWIFIEX_DELETE_MASK); | |
388 | rsn_ie->ie_length = 0; | |
389 | if (mwifiex_update_uap_custom_ie(priv, rsn_ie, &priv->rsn_idx, | |
390 | NULL, &priv->proberesp_idx, | |
391 | NULL, &priv->assocresp_idx)) { | |
392 | ret = -1; | |
393 | goto done; | |
394 | } | |
395 | ||
396 | priv->rsn_idx = MWIFIEX_AUTO_IDX_MASK; | |
397 | } | |
398 | ||
399 | if (priv->beacon_idx != MWIFIEX_AUTO_IDX_MASK) { | |
400 | beacon_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL); | |
401 | if (!beacon_ie) { | |
402 | ret = -ENOMEM; | |
403 | goto done; | |
404 | } | |
405 | beacon_ie->ie_index = cpu_to_le16(priv->beacon_idx); | |
406 | beacon_ie->mgmt_subtype_mask = cpu_to_le16(MWIFIEX_DELETE_MASK); | |
407 | beacon_ie->ie_length = 0; | |
408 | } | |
409 | if (priv->proberesp_idx != MWIFIEX_AUTO_IDX_MASK) { | |
410 | pr_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL); | |
411 | if (!pr_ie) { | |
412 | ret = -ENOMEM; | |
413 | goto done; | |
414 | } | |
415 | pr_ie->ie_index = cpu_to_le16(priv->proberesp_idx); | |
416 | pr_ie->mgmt_subtype_mask = cpu_to_le16(MWIFIEX_DELETE_MASK); | |
417 | pr_ie->ie_length = 0; | |
418 | } | |
419 | if (priv->assocresp_idx != MWIFIEX_AUTO_IDX_MASK) { | |
420 | ar_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL); | |
421 | if (!ar_ie) { | |
422 | ret = -ENOMEM; | |
423 | goto done; | |
424 | } | |
425 | ar_ie->ie_index = cpu_to_le16(priv->assocresp_idx); | |
426 | ar_ie->mgmt_subtype_mask = cpu_to_le16(MWIFIEX_DELETE_MASK); | |
427 | ar_ie->ie_length = 0; | |
428 | } | |
429 | ||
430 | if (beacon_ie || pr_ie || ar_ie) | |
431 | ret = mwifiex_update_uap_custom_ie(priv, | |
432 | beacon_ie, &priv->beacon_idx, | |
433 | pr_ie, &priv->proberesp_idx, | |
434 | ar_ie, &priv->assocresp_idx); | |
435 | ||
436 | done: | |
437 | kfree(beacon_ie); | |
438 | kfree(pr_ie); | |
439 | kfree(ar_ie); | |
440 | kfree(rsn_ie); | |
441 | ||
442 | return ret; | |
443 | } |