/* This function parses different IEs-tail IEs, beacon IEs, probe response IEs,
* association response IEs from cfg80211_ap_settings function and sets these IE
* to FW.
*/
int mwifiex_set_mgmt_ies(struct mwifiex_private *priv,
struct cfg80211_beacon_data *info)
{
struct mwifiex_ie *gen_ie;
struct ieee_types_header *rsn_ie, *wpa_ie = NULL;
u16 rsn_idx = MWIFIEX_AUTO_IDX_MASK, ie_len = 0;
const u8 *vendor_ie;
if (info->tail && info->tail_len) {
gen_ie = kzalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
if (!gen_ie)
return -ENOMEM;
gen_ie->ie_index = cpu_to_le16(rsn_idx);
gen_ie->mgmt_subtype_mask = cpu_to_le16(MGMT_MASK_BEACON |
MGMT_MASK_PROBE_RESP |
MGMT_MASK_ASSOC_RESP);
rsn_ie = (void *)cfg80211_find_ie(WLAN_EID_RSN,
info->tail, info->tail_len);
if (rsn_ie) {
memcpy(gen_ie->ie_buffer, rsn_ie, rsn_ie->len + 2);
ie_len = rsn_ie->len + 2;
gen_ie->ie_length = cpu_to_le16(ie_len);
}
vendor_ie = cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
WLAN_OUI_TYPE_MICROSOFT_WPA,
info->tail,
info->tail_len);
if (vendor_ie) {
wpa_ie = (struct ieee_types_header *)vendor_ie;
memcpy(gen_ie->ie_buffer + ie_len,
wpa_ie, wpa_ie->len + 2);
ie_len += wpa_ie->len + 2;
gen_ie->ie_length = cpu_to_le16(ie_len);
}
if (rsn_ie || wpa_ie) {
if (mwifiex_update_uap_custom_ie(priv, gen_ie, &rsn_idx,
NULL, NULL,
NULL, NULL)) {
kfree(gen_ie);
return -1;
}
priv->rsn_idx = rsn_idx;
}
kfree(gen_ie);
}
return mwifiex_set_mgmt_beacon_data_ies(priv, info);
}
/* This function removes management IE set */
int mwifiex_del_mgmt_ies(struct mwifiex_private *priv)
{
struct mwifiex_ie *beacon_ie = NULL, *pr_ie = NULL;
struct mwifiex_ie *ar_ie = NULL, *rsn_ie = NULL;
int ret = 0;
if (priv->rsn_idx != MWIFIEX_AUTO_IDX_MASK) {
rsn_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
if (!rsn_ie)
return -ENOMEM;
rsn_ie->ie_index = cpu_to_le16(priv->rsn_idx);
rsn_ie->mgmt_subtype_mask = cpu_to_le16(MWIFIEX_DELETE_MASK);
rsn_ie->ie_length = 0;
if (mwifiex_update_uap_custom_ie(priv, rsn_ie, &priv->rsn_idx,
NULL, &priv->proberesp_idx,
NULL, &priv->assocresp_idx)) {
ret = -1;
goto done;
}
priv->rsn_idx = MWIFIEX_AUTO_IDX_MASK;
}
if (priv->beacon_idx != MWIFIEX_AUTO_IDX_MASK) {
beacon_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
if (!beacon_ie) {
ret = -ENOMEM;
goto done;
}
beacon_ie->ie_index = cpu_to_le16(priv->beacon_idx);
beacon_ie->mgmt_subtype_mask = cpu_to_le16(MWIFIEX_DELETE_MASK);
beacon_ie->ie_length = 0;
}
if (priv->proberesp_idx != MWIFIEX_AUTO_IDX_MASK) {
pr_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
if (!pr_ie) {
ret = -ENOMEM;
goto done;
}
pr_ie->ie_index = cpu_to_le16(priv->proberesp_idx);
pr_ie->mgmt_subtype_mask = cpu_to_le16(MWIFIEX_DELETE_MASK);
pr_ie->ie_length = 0;
}
if (priv->assocresp_idx != MWIFIEX_AUTO_IDX_MASK) {
ar_ie = kmalloc(sizeof(struct mwifiex_ie), GFP_KERNEL);
if (!ar_ie) {
ret = -ENOMEM;
goto done;
}
ar_ie->ie_index = cpu_to_le16(priv->assocresp_idx);
ar_ie->mgmt_subtype_mask = cpu_to_le16(MWIFIEX_DELETE_MASK);
ar_ie->ie_length = 0;
}
if (beacon_ie || pr_ie || ar_ie)
ret = mwifiex_update_uap_custom_ie(priv,
beacon_ie, &priv->beacon_idx,
pr_ie, &priv->proberesp_idx,
ar_ie, &priv->assocresp_idx);
done:
kfree(beacon_ie);
kfree(pr_ie);
kfree(ar_ie);
kfree(rsn_ie);
return ret;
}
/* This function parses beacon IEs, probe response IEs, association response IEs
* from cfg80211_ap_settings->beacon and sets these IE to FW.
*/
static int mwifiex_set_mgmt_beacon_data_ies(struct mwifiex_private *priv,
struct cfg80211_beacon_data *data)
{
struct mwifiex_ie *beacon_ie = NULL, *pr_ie = NULL, *ar_ie = NULL;
u16 beacon_idx = MWIFIEX_AUTO_IDX_MASK, pr_idx = MWIFIEX_AUTO_IDX_MASK;
u16 ar_idx = MWIFIEX_AUTO_IDX_MASK;
int ret = 0;
if (data->beacon_ies && data->beacon_ies_len) {
mwifiex_update_vs_ie(data->beacon_ies, data->beacon_ies_len,
&beacon_ie, MGMT_MASK_BEACON,
WLAN_OUI_MICROSOFT,
WLAN_OUI_TYPE_MICROSOFT_WPS);
mwifiex_update_vs_ie(data->beacon_ies, data->beacon_ies_len,
&beacon_ie, MGMT_MASK_BEACON,
WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P);
}
if (data->proberesp_ies && data->proberesp_ies_len) {
mwifiex_update_vs_ie(data->proberesp_ies,
data->proberesp_ies_len, &pr_ie,
MGMT_MASK_PROBE_RESP, WLAN_OUI_MICROSOFT,
WLAN_OUI_TYPE_MICROSOFT_WPS);
mwifiex_update_vs_ie(data->proberesp_ies,
data->proberesp_ies_len, &pr_ie,
MGMT_MASK_PROBE_RESP,
WLAN_OUI_WFA, WLAN_OUI_TYPE_WFA_P2P);
}
if (data->assocresp_ies && data->assocresp_ies_len) {
mwifiex_update_vs_ie(data->assocresp_ies,
data->assocresp_ies_len, &ar_ie,
MGMT_MASK_ASSOC_RESP |
MGMT_MASK_REASSOC_RESP,
WLAN_OUI_MICROSOFT,
WLAN_OUI_TYPE_MICROSOFT_WPS);
mwifiex_update_vs_ie(data->assocresp_ies,
data->assocresp_ies_len, &ar_ie,
MGMT_MASK_ASSOC_RESP |
MGMT_MASK_REASSOC_RESP, WLAN_OUI_WFA,
WLAN_OUI_TYPE_WFA_P2P);
}
if (beacon_ie || pr_ie || ar_ie) {
ret = mwifiex_update_uap_custom_ie(priv, beacon_ie,
&beacon_idx, pr_ie,
&pr_idx, ar_ie, &ar_idx);
if (ret)
goto done;
}
priv->beacon_idx = beacon_idx;
priv->proberesp_idx = pr_idx;
priv->assocresp_idx = ar_idx;
done:
kfree(beacon_ie);
kfree(pr_ie);
kfree(ar_ie);
return ret;
}
/* This function parses head and tail IEs, from cfg80211_beacon_data and sets
* these IE to FW.
*/
static int mwifiex_uap_parse_tail_ies(struct mwifiex_private *priv,
struct cfg80211_beacon_data *info)
{
struct mwifiex_ie *gen_ie;
struct ieee_types_header *hdr;
struct ieee80211_vendor_ie *vendorhdr;
u16 gen_idx = MWIFIEX_AUTO_IDX_MASK, ie_len = 0;
int left_len, parsed_len = 0;
if (!info->tail || !info->tail_len)
return 0;
gen_ie = kzalloc(sizeof(*gen_ie), GFP_KERNEL);
if (!gen_ie)
return -ENOMEM;
left_len = info->tail_len;
/* Many IEs are generated in FW by parsing bss configuration.
* Let's not add them here; else we may end up duplicating these IEs
*/
while (left_len > sizeof(struct ieee_types_header)) {
hdr = (void *)(info->tail + parsed_len);
switch (hdr->element_id) {
case WLAN_EID_SSID:
case WLAN_EID_SUPP_RATES:
case WLAN_EID_COUNTRY:
case WLAN_EID_PWR_CONSTRAINT:
case WLAN_EID_EXT_SUPP_RATES:
case WLAN_EID_HT_CAPABILITY:
case WLAN_EID_HT_OPERATION:
case WLAN_EID_VHT_CAPABILITY:
case WLAN_EID_VHT_OPERATION:
case WLAN_EID_VENDOR_SPECIFIC:
break;
default:
memcpy(gen_ie->ie_buffer + ie_len, hdr,
hdr->len + sizeof(struct ieee_types_header));
ie_len += hdr->len + sizeof(struct ieee_types_header);
break;
}
left_len -= hdr->len + sizeof(struct ieee_types_header);
parsed_len += hdr->len + sizeof(struct ieee_types_header);
}
/* parse only WPA vendor IE from tail, WMM IE is configured by
* bss_config command
*/
vendorhdr = (void *)cfg80211_find_vendor_ie(WLAN_OUI_MICROSOFT,
WLAN_OUI_TYPE_MICROSOFT_WPA,
info->tail, info->tail_len);
if (vendorhdr) {
memcpy(gen_ie->ie_buffer + ie_len, vendorhdr,
vendorhdr->len + sizeof(struct ieee_types_header));
ie_len += vendorhdr->len + sizeof(struct ieee_types_header);
}
if (!ie_len) {
kfree(gen_ie);
return 0;
}
gen_ie->ie_index = cpu_to_le16(gen_idx);
gen_ie->mgmt_subtype_mask = cpu_to_le16(MGMT_MASK_BEACON |
MGMT_MASK_PROBE_RESP |
MGMT_MASK_ASSOC_RESP);
gen_ie->ie_length = cpu_to_le16(ie_len);
if (mwifiex_update_uap_custom_ie(priv, gen_ie, &gen_idx, NULL, NULL,
NULL, NULL)) {
kfree(gen_ie);
return -1;
}
priv->gen_idx = gen_idx;
kfree(gen_ie);
return 0;
}
