static int
mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
u16 ie_len)
{
int ret = 0;
struct ieee_types_vendor_header *pvendor_ie;
const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
if (!ie_len) {
priv->gen_ie_buf_len = 0;
priv->wps.session_enable = false;
return 0;
} else if (!ie_data_ptr) {
return -1;
}
pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
if (((pvendor_ie->element_id == WLAN_EID_WPA) &&
(!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui)))) ||
(pvendor_ie->element_id == WLAN_EID_RSN)) {
ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len);
priv->wps.session_enable = false;
return ret;
} else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len);
return ret;
}
if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC) &&
(!memcmp(pvendor_ie->oui, wps_oui, sizeof(wps_oui)))) {
priv->wps.session_enable = true;
dev_dbg(priv->adapter->dev,
"info: WPS Session Enabled.\n");
}
memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
ie_len);
priv->gen_ie_buf_len += ie_len;
} else {
ret = -1;
}
return ret;
}
/*
* This function sets a generic IE. In addition to generic IE, it can
* also handle WPA, WPA2 and WAPI IEs.
*/
static int
mwifiex_set_gen_ie_helper(struct mwifiex_private *priv, u8 *ie_data_ptr,
u16 ie_len)
{
int ret = 0;
struct ieee_types_vendor_header *pvendor_ie;
const u8 wpa_oui[] = { 0x00, 0x50, 0xf2, 0x01 };
const u8 wps_oui[] = { 0x00, 0x50, 0xf2, 0x04 };
/* If the passed length is zero, reset the buffer */
if (!ie_len) {
priv->gen_ie_buf_len = 0;
priv->wps.session_enable = false;
return 0;
} else if (!ie_data_ptr) {
return -1;
}
pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
/* Test to see if it is a WPA IE, if not, then it is a gen IE */
if (((pvendor_ie->element_id == WLAN_EID_WPA)
&& (!memcmp(pvendor_ie->oui, wpa_oui, sizeof(wpa_oui))))
|| (pvendor_ie->element_id == WLAN_EID_RSN)) {
/* IE is a WPA/WPA2 IE so call set_wpa function */
ret = mwifiex_set_wpa_ie_helper(priv, ie_data_ptr, ie_len);
priv->wps.session_enable = false;
return ret;
} else if (pvendor_ie->element_id == WLAN_EID_BSS_AC_ACCESS_DELAY) {
/* IE is a WAPI IE so call set_wapi function */
ret = mwifiex_set_wapi_ie(priv, ie_data_ptr, ie_len);
return ret;
}
/*
* Verify that the passed length is not larger than the
* available space remaining in the buffer
*/
if (ie_len < (sizeof(priv->gen_ie_buf) - priv->gen_ie_buf_len)) {
/* Test to see if it is a WPS IE, if so, enable
* wps session flag
*/
pvendor_ie = (struct ieee_types_vendor_header *) ie_data_ptr;
if ((pvendor_ie->element_id == WLAN_EID_VENDOR_SPECIFIC)
&& (!memcmp(pvendor_ie->oui, wps_oui,
sizeof(wps_oui)))) {
priv->wps.session_enable = true;
dev_dbg(priv->adapter->dev,
"info: WPS Session Enabled.\n");
}
/* Append the passed data to the end of the
genIeBuffer */
memcpy(priv->gen_ie_buf + priv->gen_ie_buf_len, ie_data_ptr,
ie_len);
/* Increment the stored buffer length by the
size passed */
priv->gen_ie_buf_len += ie_len;
} else {
/* Passed data does not fit in the remaining
buffer space */
ret = -1;
}
/* Return 0, or -1 for error case */
return ret;
}
