unsigned char *r8712_get_wpa_ie(unsigned char *pie, int *wpa_ie_len, int limit)
{
int len;
u16 val16;
unsigned char wpa_oui_type[] = {0x00, 0x50, 0xf2, 0x01};
u8 *pbuf = pie;
while (1) {
pbuf = r8712_get_ie(pbuf, _WPA_IE_ID_, &len, limit);
if (pbuf) {
/*check if oui matches...*/
if (memcmp((pbuf + 2), wpa_oui_type,
sizeof(wpa_oui_type)))
goto check_next_ie;
/*check version...*/
memcpy((u8 *)&val16, (pbuf + 6), sizeof(val16));
val16 = le16_to_cpu(val16);
if (val16 != 0x0001)
goto check_next_ie;
*wpa_ie_len = *(pbuf + 1);
return pbuf;
} else {
*wpa_ie_len = 0;
return NULL;
}
check_next_ie:
limit = limit - (pbuf - pie) - 2 - len;
if (limit <= 0)
break;
pbuf += (2 + len);
}
*wpa_ie_len = 0;
return NULL;
}
void r8712_update_protection(struct _adapter *padapter, u8 *ie, uint ie_len)
{
uint protection;
u8 *perp;
uint erp_len;
struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
struct registry_priv *pregistrypriv = &padapter->registrypriv;
switch (pxmitpriv->vcs_setting) {
case DISABLE_VCS:
pxmitpriv->vcs = NONE_VCS;
break;
case ENABLE_VCS:
break;
case AUTO_VCS:
default:
perp = r8712_get_ie(ie, _ERPINFO_IE_, &erp_len, ie_len);
if (perp == NULL) {
pxmitpriv->vcs = NONE_VCS;
} else {
protection = (*(perp + 2)) & BIT(1);
if (protection) {
if (pregistrypriv->vcs_type == RTS_CTS)
pxmitpriv->vcs = RTS_CTS;
else
pxmitpriv->vcs = CTS_TO_SELF;
} else {
pxmitpriv->vcs = NONE_VCS;
}
}
break;
}
}
unsigned char *r8712_get_wpa2_ie(unsigned char *pie, int *rsn_ie_len, int limit)
{
return r8712_get_ie(pie, _WPA2_IE_ID_, rsn_ie_len, limit);
}
