// SPDX-License-Identifier: GPL-2.0
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/******************************************************************************
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* rtl871x_ioctl_set.c
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*
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* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
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* Linux device driver for RTL8192SU
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*
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* Modifications for inclusion into the Linux staging tree are
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* Copyright(c) 2010 Larry Finger. All rights reserved.
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*
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* Contact information:
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* WLAN FAE <wlanfae@realtek.com>
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* Larry Finger <Larry.Finger@lwfinger.net>
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*
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******************************************************************************/
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#define _RTL871X_IOCTL_SET_C_
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#include "osdep_service.h"
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#include "drv_types.h"
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#include "rtl871x_ioctl_set.h"
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#include "usb_osintf.h"
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#include "usb_ops.h"
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static u8 validate_ssid(struct ndis_802_11_ssid *ssid)
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{
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u8 i;
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if (ssid->SsidLength > 32)
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return false;
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for (i = 0; i < ssid->SsidLength; i++) {
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/* wifi, printable ascii code must be supported */
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if (!((ssid->Ssid[i] >= 0x20) && (ssid->Ssid[i] <= 0x7e)))
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return false;
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}
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return true;
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}
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static u8 do_join(struct _adapter *padapter)
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{
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struct list_head *plist, *phead;
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u8 *pibss = NULL;
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struct mlme_priv *pmlmepriv = &(padapter->mlmepriv);
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struct __queue *queue = &(pmlmepriv->scanned_queue);
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int ret;
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phead = &queue->queue;
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plist = phead->next;
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pmlmepriv->cur_network.join_res = -2;
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pmlmepriv->fw_state |= _FW_UNDER_LINKING;
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pmlmepriv->pscanned = plist;
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pmlmepriv->to_join = true;
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/* adhoc mode will start with an empty queue, but skip checking */
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if (!check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) &&
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list_empty(&queue->queue)) {
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if (pmlmepriv->fw_state & _FW_UNDER_LINKING)
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pmlmepriv->fw_state ^= _FW_UNDER_LINKING;
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/* when set_ssid/set_bssid for do_join(), but scanning queue
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* is empty we try to issue sitesurvey firstly
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*/
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if (!pmlmepriv->sitesurveyctrl.traffic_busy)
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r8712_sitesurvey_cmd(padapter, &pmlmepriv->assoc_ssid);
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return true;
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}
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ret = r8712_select_and_join_from_scan(pmlmepriv);
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if (!ret) {
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mod_timer(&pmlmepriv->assoc_timer,
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jiffies + msecs_to_jiffies(MAX_JOIN_TIMEOUT));
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} else {
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if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
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/* submit r8712_createbss_cmd to change to an
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* ADHOC_MASTER pmlmepriv->lock has been
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* acquired by caller...
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*/
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struct wlan_bssid_ex *pdev_network =
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&(padapter->registrypriv.dev_network);
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pmlmepriv->fw_state = WIFI_ADHOC_MASTER_STATE;
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pibss = padapter->registrypriv.dev_network.MacAddress;
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memcpy(&pdev_network->Ssid,
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&pmlmepriv->assoc_ssid,
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sizeof(struct ndis_802_11_ssid));
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r8712_update_registrypriv_dev_network(padapter);
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r8712_generate_random_ibss(pibss);
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if (r8712_createbss_cmd(padapter))
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return false;
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pmlmepriv->to_join = false;
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} else {
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/* can't associate ; reset under-linking */
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if (pmlmepriv->fw_state & _FW_UNDER_LINKING)
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pmlmepriv->fw_state ^=
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_FW_UNDER_LINKING;
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/* when set_ssid/set_bssid for do_join(), but
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* there are no desired bss in scanning queue
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* we try to issue sitesurvey first
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*/
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if (!pmlmepriv->sitesurveyctrl.traffic_busy)
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r8712_sitesurvey_cmd(padapter,
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&pmlmepriv->assoc_ssid);
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}
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}
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return true;
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}
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u8 r8712_set_802_11_bssid(struct _adapter *padapter, u8 *bssid)
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{
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unsigned long irqL;
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u8 status = true;
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struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
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if (is_zero_ether_addr(bssid) || is_broadcast_ether_addr(bssid)) {
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status = false;
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return status;
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}
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spin_lock_irqsave(&pmlmepriv->lock, irqL);
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if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY |
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_FW_UNDER_LINKING)) {
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status = check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
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goto _Abort_Set_BSSID;
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}
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if (check_fwstate(pmlmepriv,
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_FW_LINKED | WIFI_ADHOC_MASTER_STATE)) {
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if (!memcmp(&pmlmepriv->cur_network.network.MacAddress, bssid,
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ETH_ALEN)) {
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if (!check_fwstate(pmlmepriv, WIFI_STATION_STATE))
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/* driver is in
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* WIFI_ADHOC_MASTER_STATE
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*/
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goto _Abort_Set_BSSID;
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} else {
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r8712_disassoc_cmd(padapter);
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if (check_fwstate(pmlmepriv, _FW_LINKED))
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r8712_ind_disconnect(padapter);
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r8712_free_assoc_resources(padapter);
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if ((check_fwstate(pmlmepriv,
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WIFI_ADHOC_MASTER_STATE))) {
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_clr_fwstate_(pmlmepriv,
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WIFI_ADHOC_MASTER_STATE);
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set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
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}
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}
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}
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memcpy(&pmlmepriv->assoc_bssid, bssid, ETH_ALEN);
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pmlmepriv->assoc_by_bssid = true;
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status = do_join(padapter);
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goto done;
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_Abort_Set_BSSID:
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done:
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spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
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return status;
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}
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void r8712_set_802_11_ssid(struct _adapter *padapter,
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struct ndis_802_11_ssid *ssid)
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{
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unsigned long irqL;
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struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
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struct wlan_network *pnetwork = &pmlmepriv->cur_network;
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if (!padapter->hw_init_completed)
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return;
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spin_lock_irqsave(&pmlmepriv->lock, irqL);
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if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY | _FW_UNDER_LINKING)) {
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check_fwstate(pmlmepriv, _FW_UNDER_LINKING);
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goto _Abort_Set_SSID;
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}
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if (check_fwstate(pmlmepriv, _FW_LINKED | WIFI_ADHOC_MASTER_STATE)) {
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if ((pmlmepriv->assoc_ssid.SsidLength == ssid->SsidLength) &&
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(!memcmp(&pmlmepriv->assoc_ssid.Ssid, ssid->Ssid,
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ssid->SsidLength))) {
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if (!check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
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if (!r8712_is_same_ibss(padapter,
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pnetwork)) {
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/* if in WIFI_ADHOC_MASTER_STATE or
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* WIFI_ADHOC_STATE, create bss or
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* rejoin again
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*/
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r8712_disassoc_cmd(padapter);
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if (check_fwstate(pmlmepriv,
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_FW_LINKED))
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r8712_ind_disconnect(padapter);
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r8712_free_assoc_resources(padapter);
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if (check_fwstate(pmlmepriv,
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WIFI_ADHOC_MASTER_STATE)) {
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_clr_fwstate_(pmlmepriv,
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WIFI_ADHOC_MASTER_STATE);
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set_fwstate(pmlmepriv,
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WIFI_ADHOC_STATE);
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}
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} else {
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/* driver is in
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* WIFI_ADHOC_MASTER_STATE
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*/
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goto _Abort_Set_SSID;
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}
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}
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} else {
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r8712_disassoc_cmd(padapter);
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if (check_fwstate(pmlmepriv, _FW_LINKED))
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r8712_ind_disconnect(padapter);
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r8712_free_assoc_resources(padapter);
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if (check_fwstate(pmlmepriv,
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WIFI_ADHOC_MASTER_STATE)) {
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_clr_fwstate_(pmlmepriv,
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WIFI_ADHOC_MASTER_STATE);
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set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
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}
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}
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}
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if (padapter->securitypriv.btkip_countermeasure)
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goto _Abort_Set_SSID;
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if (!validate_ssid(ssid))
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goto _Abort_Set_SSID;
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memcpy(&pmlmepriv->assoc_ssid, ssid, sizeof(struct ndis_802_11_ssid));
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pmlmepriv->assoc_by_bssid = false;
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do_join(padapter);
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goto done;
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_Abort_Set_SSID:
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done:
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spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
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}
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void r8712_set_802_11_infrastructure_mode(struct _adapter *padapter,
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enum NDIS_802_11_NETWORK_INFRASTRUCTURE networktype)
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{
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unsigned long irqL;
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struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
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struct wlan_network *cur_network = &pmlmepriv->cur_network;
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enum NDIS_802_11_NETWORK_INFRASTRUCTURE *pold_state =
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&(cur_network->network.InfrastructureMode);
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if (*pold_state != networktype) {
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spin_lock_irqsave(&pmlmepriv->lock, irqL);
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if (check_fwstate(pmlmepriv, _FW_LINKED) ||
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(*pold_state == Ndis802_11IBSS))
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r8712_disassoc_cmd(padapter);
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if (check_fwstate(pmlmepriv,
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_FW_LINKED | WIFI_ADHOC_MASTER_STATE))
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r8712_free_assoc_resources(padapter);
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if (check_fwstate(pmlmepriv, _FW_LINKED) ||
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(*pold_state == Ndis802_11Infrastructure) ||
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(*pold_state == Ndis802_11IBSS)) {
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/* will clr Linked_state before this function,
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* we must have checked whether issue dis-assoc_cmd or
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* not
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*/
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r8712_ind_disconnect(padapter);
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}
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*pold_state = networktype;
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/* clear WIFI_STATION_STATE; WIFI_AP_STATE; WIFI_ADHOC_STATE;
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* WIFI_ADHOC_MASTER_STATE
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*/
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_clr_fwstate_(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE |
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WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE);
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switch (networktype) {
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case Ndis802_11IBSS:
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set_fwstate(pmlmepriv, WIFI_ADHOC_STATE);
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break;
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case Ndis802_11Infrastructure:
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set_fwstate(pmlmepriv, WIFI_STATION_STATE);
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break;
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case Ndis802_11APMode:
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set_fwstate(pmlmepriv, WIFI_AP_STATE);
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break;
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case Ndis802_11AutoUnknown:
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case Ndis802_11InfrastructureMax:
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break;
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}
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spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
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}
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}
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u8 r8712_set_802_11_disassociate(struct _adapter *padapter)
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{
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unsigned long irqL;
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struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
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spin_lock_irqsave(&pmlmepriv->lock, irqL);
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if (check_fwstate(pmlmepriv, _FW_LINKED)) {
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r8712_disassoc_cmd(padapter);
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r8712_ind_disconnect(padapter);
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r8712_free_assoc_resources(padapter);
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}
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spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
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return true;
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}
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u8 r8712_set_802_11_bssid_list_scan(struct _adapter *padapter)
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{
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struct mlme_priv *pmlmepriv = NULL;
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unsigned long irqL;
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u8 ret = true;
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if (!padapter)
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return false;
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pmlmepriv = &padapter->mlmepriv;
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if (!padapter->hw_init_completed)
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return false;
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spin_lock_irqsave(&pmlmepriv->lock, irqL);
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if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY | _FW_UNDER_LINKING) ||
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pmlmepriv->sitesurveyctrl.traffic_busy) {
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/* Scan or linking is in progress, do nothing. */
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ret = (u8)check_fwstate(pmlmepriv, _FW_UNDER_SURVEY);
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} else {
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r8712_free_network_queue(padapter);
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ret = r8712_sitesurvey_cmd(padapter, NULL);
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}
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spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
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return ret;
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}
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u8 r8712_set_802_11_authentication_mode(struct _adapter *padapter,
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enum NDIS_802_11_AUTHENTICATION_MODE authmode)
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{
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struct security_priv *psecuritypriv = &padapter->securitypriv;
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u8 ret;
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psecuritypriv->ndisauthtype = authmode;
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if (psecuritypriv->ndisauthtype > 3)
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psecuritypriv->AuthAlgrthm = 2; /* 802.1x */
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if (r8712_set_auth(padapter, psecuritypriv))
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ret = false;
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else
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ret = true;
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return ret;
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}
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int r8712_set_802_11_add_wep(struct _adapter *padapter,
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struct NDIS_802_11_WEP *wep)
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{
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sint keyid;
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struct security_priv *psecuritypriv = &padapter->securitypriv;
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keyid = wep->KeyIndex & 0x3fffffff;
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if (keyid >= WEP_KEYS)
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return -EINVAL;
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switch (wep->KeyLength) {
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case 5:
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psecuritypriv->PrivacyAlgrthm = _WEP40_;
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break;
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case 13:
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psecuritypriv->PrivacyAlgrthm = _WEP104_;
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break;
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default:
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psecuritypriv->PrivacyAlgrthm = _NO_PRIVACY_;
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break;
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}
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memcpy(psecuritypriv->DefKey[keyid].skey, &wep->KeyMaterial,
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wep->KeyLength);
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psecuritypriv->DefKeylen[keyid] = wep->KeyLength;
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psecuritypriv->PrivacyKeyIndex = keyid;
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return r8712_set_key(padapter, psecuritypriv, keyid);
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}
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