2 * Marvell Wireless LAN device driver: management IE handling- setting and
5 * Copyright (C) 2012, Marvell International Ltd.
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.
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.
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.
28 mwifiex_ie_index_used_by_other_intf(struct mwifiex_private *priv, u16 idx)
31 struct mwifiex_adapter *adapter = priv->adapter;
32 struct mwifiex_ie *ie;
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)
45 /* Get unused IE index. This index will be used for setting new IE */
47 mwifiex_ie_get_autoidx(struct mwifiex_private *priv, u16 subtype_mask,
48 struct mwifiex_ie *ie, u16 *index)
52 for (i = 0; i < priv->adapter->max_mgmt_ie_index; i++) {
53 mask = le16_to_cpu(priv->mgmt_ie[i].mgmt_subtype_mask);
54 len = le16_to_cpu(ie->ie_length);
56 if (mask == MWIFIEX_AUTO_IDX_MASK)
59 if (mask == subtype_mask) {
60 if (len > IEEE_MAX_IE_SIZE)
67 if (!priv->mgmt_ie[i].ie_length) {
68 if (mwifiex_ie_index_used_by_other_intf(priv, i))
79 /* This function prepares IE data buffer for command to be sent to FW */
81 mwifiex_update_autoindex_ies(struct mwifiex_private *priv,
82 struct mwifiex_ie_list *ie_list)
84 u16 travel_len, index, mask;
86 struct mwifiex_ie *ie;
89 input_len = le16_to_cpu(ie_list->len);
90 travel_len = sizeof(struct host_cmd_tlv);
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;
99 index = le16_to_cpu(ie->ie_index);
100 mask = le16_to_cpu(ie->mgmt_subtype_mask);
102 if (index == MWIFIEX_AUTO_IDX_MASK) {
103 /* automatic addition */
104 if (mwifiex_ie_get_autoidx(priv, mask, ie, &index))
106 if (index == MWIFIEX_AUTO_IDX_MASK)
109 tmp = (u8 *)&priv->mgmt_ie[index].ie_buffer;
110 memcpy(tmp, &ie->ie_buffer, le16_to_cpu(ie->ie_length));
111 priv->mgmt_ie[index].ie_length = ie->ie_length;
112 priv->mgmt_ie[index].ie_index = cpu_to_le16(index);
113 priv->mgmt_ie[index].mgmt_subtype_mask =
116 ie->ie_index = cpu_to_le16(index);
118 if (mask != MWIFIEX_DELETE_MASK)
121 * Check if this index is being used on any
124 if (mwifiex_ie_index_used_by_other_intf(priv, index))
128 memcpy(&priv->mgmt_ie[index], ie,
129 sizeof(struct mwifiex_ie));
132 le16_add_cpu(&ie_list->len,
133 le16_to_cpu(priv->mgmt_ie[index].ie_length) +
134 MWIFIEX_IE_HDR_SIZE);
137 if (GET_BSS_ROLE(priv) == MWIFIEX_BSS_ROLE_UAP)
138 return mwifiex_send_cmd_async(priv, HostCmd_CMD_UAP_SYS_CONFIG,
140 UAP_CUSTOM_IE_I, ie_list);
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.
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)
155 struct mwifiex_ie_list *ap_custom_ie;
160 ap_custom_ie = kzalloc(sizeof(*ap_custom_ie), GFP_KERNEL);
164 ap_custom_ie->type = cpu_to_le16(TLV_TYPE_MGMT_IE);
165 pos = (u8 *)ap_custom_ie->ie_list;
168 len = sizeof(struct mwifiex_ie) - IEEE_MAX_IE_SIZE +
169 le16_to_cpu(beacon_ie->ie_length);
170 memcpy(pos, beacon_ie, len);
172 le16_add_cpu(&ap_custom_ie->len, len);
175 len = sizeof(struct mwifiex_ie) - IEEE_MAX_IE_SIZE +
176 le16_to_cpu(pr_ie->ie_length);
177 memcpy(pos, pr_ie, len);
179 le16_add_cpu(&ap_custom_ie->len, len);
182 len = sizeof(struct mwifiex_ie) - IEEE_MAX_IE_SIZE +
183 le16_to_cpu(ar_ie->ie_length);
184 memcpy(pos, ar_ie, len);
186 le16_add_cpu(&ap_custom_ie->len, len);
189 ret = mwifiex_update_autoindex_ies(priv, ap_custom_ie);
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);
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);
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);
214 /* This function checks if the vendor specified IE is present in passed buffer
215 * and copies it to mwifiex_ie structure.
216 * Function takes pointer to struct mwifiex_ie pointer as argument.
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
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)
225 struct ieee_types_header *vs_ie;
226 struct mwifiex_ie *ie = *ie_ptr;
229 vendor_ie = cfg80211_find_vendor_ie(oui, oui_type, ies, ies_len);
232 *ie_ptr = kzalloc(sizeof(struct mwifiex_ie),
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);
243 ie->mgmt_subtype_mask = cpu_to_le16(mask);
244 ie->ie_index = cpu_to_le16(MWIFIEX_AUTO_IDX_MASK);
251 /* This function parses beacon IEs, probe response IEs, association response IEs
252 * from cfg80211_ap_settings->beacon and sets these IE to FW.
254 static int mwifiex_set_mgmt_beacon_data_ies(struct mwifiex_private *priv,
255 struct cfg80211_beacon_data *data)
257 struct mwifiex_ie *beacon_ie = NULL, *pr_ie = NULL, *ar_ie = NULL;
258 u16 beacon_idx = MWIFIEX_AUTO_IDX_MASK, pr_idx = MWIFIEX_AUTO_IDX_MASK;
259 u16 ar_idx = MWIFIEX_AUTO_IDX_MASK;
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,
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);
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);
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,
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);
297 if (beacon_ie || pr_ie || ar_ie) {
298 ret = mwifiex_update_uap_custom_ie(priv, beacon_ie,
300 &pr_idx, ar_ie, &ar_idx);
305 priv->beacon_idx = beacon_idx;
306 priv->proberesp_idx = pr_idx;
307 priv->assocresp_idx = ar_idx;
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
321 int mwifiex_set_mgmt_ies(struct mwifiex_private *priv,
322 struct cfg80211_beacon_data *info)
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;
329 if (info->tail && info->tail_len) {
330 gen_ie = kzalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
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);
338 rsn_ie = (void *)cfg80211_find_ie(WLAN_EID_RSN,
339 info->tail, info->tail_len);
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);
346 vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
347 WLAN_OUI_TYPE_MICROSOFT_WPA,
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);
358 if (rsn_ie || wpa_ie) {
359 if (mwifiex_update_uap_custom_ie(priv, gen_ie, &rsn_idx,
365 priv->rsn_idx = rsn_idx;
371 return mwifiex_set_mgmt_beacon_data_ies(priv, info);
374 /* This function removes management IE set */
375 int mwifiex_del_mgmt_ies(struct mwifiex_private *priv)
377 struct mwifiex_ie *beacon_ie = NULL, *pr_ie = NULL;
378 struct mwifiex_ie *ar_ie = NULL, *rsn_ie = NULL;
381 if (priv->rsn_idx != MWIFIEX_AUTO_IDX_MASK) {
382 rsn_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
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)) {
396 priv->rsn_idx = MWIFIEX_AUTO_IDX_MASK;
399 if (priv->beacon_idx != MWIFIEX_AUTO_IDX_MASK) {
400 beacon_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
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;
409 if (priv->proberesp_idx != MWIFIEX_AUTO_IDX_MASK) {
410 pr_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
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;
419 if (priv->assocresp_idx != MWIFIEX_AUTO_IDX_MASK) {
420 ar_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
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;
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);