/******************************************************************************
* rtl871x_mlme.c
*
* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
* Linux device driver for RTL8192SU
*
* This program is free software; you can redistribute it and/or modify it
* under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful, but WITHOUT
* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
* more details.
*
* You should have received a copy of the GNU General Public License along with
* this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
*
* Modifications for inclusion into the Linux staging tree are
* Copyright(c) 2010 Larry Finger. All rights reserved.
*
* Contact information:
* WLAN FAE <wlanfae@realtek.com>
* Larry Finger <Larry.Finger@lwfinger.net>
*
******************************************************************************/
#define _RTL871X_MLME_C_
#include <linux/etherdevice.h>
#include "osdep_service.h"
#include "drv_types.h"
#include "recv_osdep.h"
#include "xmit_osdep.h"
#include "mlme_osdep.h"
#include "sta_info.h"
#include "wifi.h"
#include "wlan_bssdef.h"
static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len);
static sint _init_mlme_priv(struct _adapter *padapter)
{
sint i;
u8 *pbuf;
struct wlan_network *pnetwork;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
memset((u8 *)pmlmepriv, 0, sizeof(struct mlme_priv));
pmlmepriv->nic_hdl = (u8 *)padapter;
pmlmepriv->pscanned = NULL;
pmlmepriv->fw_state = 0;
pmlmepriv->cur_network.network.InfrastructureMode =
Ndis802_11AutoUnknown;
/* Maybe someday we should rename this variable to "active_mode"(Jeff)*/
pmlmepriv->passive_mode = 1; /* 1: active, 0: passive. */
spin_lock_init(&(pmlmepriv->lock));
spin_lock_init(&(pmlmepriv->lock2));
_init_queue(&(pmlmepriv->free_bss_pool));
_init_queue(&(pmlmepriv->scanned_queue));
set_scanned_network_val(pmlmepriv, 0);
memset(&pmlmepriv->assoc_ssid, 0, sizeof(struct ndis_802_11_ssid));
pbuf = kmalloc_array(MAX_BSS_CNT, sizeof(struct wlan_network),
GFP_ATOMIC);
if (pbuf == NULL)
return _FAIL;
pmlmepriv->free_bss_buf = pbuf;
pnetwork = (struct wlan_network *)pbuf;
for (i = 0; i < MAX_BSS_CNT; i++) {
INIT_LIST_HEAD(&(pnetwork->list));
list_add_tail(&(pnetwork->list),
&(pmlmepriv->free_bss_pool.queue));
pnetwork++;
}
pmlmepriv->sitesurveyctrl.last_rx_pkts = 0;
pmlmepriv->sitesurveyctrl.last_tx_pkts = 0;
pmlmepriv->sitesurveyctrl.traffic_busy = false;
/* allocate DMA-able/Non-Page memory for cmd_buf and rsp_buf */
r8712_init_mlme_timer(padapter);
return _SUCCESS;
}
struct wlan_network *_r8712_alloc_network(struct mlme_priv *pmlmepriv)
{
unsigned long irqL;
struct wlan_network *pnetwork;
struct __queue *free_queue = &pmlmepriv->free_bss_pool;
struct list_head *plist = NULL;
if (list_empty(&free_queue->queue))
return NULL;
spin_lock_irqsave(&free_queue->lock, irqL);
plist = free_queue->queue.next;
pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
list_del_init(&pnetwork->list);
pnetwork->last_scanned = jiffies;
pmlmepriv->num_of_scanned++;
spin_unlock_irqrestore(&free_queue->lock, irqL);
return pnetwork;
}
static void _free_network(struct mlme_priv *pmlmepriv,
struct wlan_network *pnetwork)
{
u32 curr_time, delta_time;
unsigned long irqL;
struct __queue *free_queue = &(pmlmepriv->free_bss_pool);
if (pnetwork == NULL)
return;
if (pnetwork->fixed)
return;
curr_time = jiffies;
delta_time = (curr_time - (u32)pnetwork->last_scanned) / HZ;
if (delta_time < SCANQUEUE_LIFETIME)
return;
spin_lock_irqsave(&free_queue->lock, irqL);
list_del_init(&pnetwork->list);
list_add_tail(&pnetwork->list, &free_queue->queue);
pmlmepriv->num_of_scanned--;
spin_unlock_irqrestore(&free_queue->lock, irqL);
}
static void _free_network_nolock(struct mlme_priv *pmlmepriv,
struct wlan_network *pnetwork)
{
struct __queue *free_queue = &pmlmepriv->free_bss_pool;
if (pnetwork == NULL)
return;
if (pnetwork->fixed)
return;
list_del_init(&pnetwork->list);
list_add_tail(&pnetwork->list, &free_queue->queue);
pmlmepriv->num_of_scanned--;
}
/*
return the wlan_network with the matching addr
Shall be called under atomic context...
to avoid possible racing condition...
*/
static struct wlan_network *_r8712_find_network(struct __queue *scanned_queue,
u8 *addr)
{
unsigned long irqL;
struct list_head *phead, *plist;
struct wlan_network *pnetwork = NULL;
if (is_zero_ether_addr(addr))
return NULL;
spin_lock_irqsave(&scanned_queue->lock, irqL);
phead = &scanned_queue->queue;
plist = phead->next;
while (plist != phead) {
pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
plist = plist->next;
if (!memcmp(addr, pnetwork->network.MacAddress, ETH_ALEN))
break;
}
spin_unlock_irqrestore(&scanned_queue->lock, irqL);
return pnetwork;
}
static void _free_network_queue(struct _adapter *padapter)
{
unsigned long irqL;
struct list_head *phead, *plist;
struct wlan_network *pnetwork;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct __queue *scanned_queue = &pmlmepriv->scanned_queue;
spin_lock_irqsave(&scanned_queue->lock, irqL);
phead = &scanned_queue->queue;
plist = phead->next;
while (!end_of_queue_search(phead, plist)) {
pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
plist = plist->next;
_free_network(pmlmepriv, pnetwork);
}
spin_unlock_irqrestore(&scanned_queue->lock, irqL);
}
sint r8712_if_up(struct _adapter *padapter)
{
sint res;
if (padapter->bDriverStopped || padapter->bSurpriseRemoved ||
!check_fwstate(&padapter->mlmepriv, _FW_LINKED)) {
res = false;
} else {
res = true;
}
return res;
}
void r8712_generate_random_ibss(u8 *pibss)
{
u32 curtime = jiffies;
pibss[0] = 0x02; /*in ad-hoc mode bit1 must set to 1 */
pibss[1] = 0x11;
pibss[2] = 0x87;
pibss[3] = (u8)(curtime & 0xff);
pibss[4] = (u8)((curtime >> 8) & 0xff);
pibss[5] = (u8)((curtime >> 16) & 0xff);
}
uint r8712_get_wlan_bssid_ex_sz(struct wlan_bssid_ex *bss)
{
return sizeof(*bss) + bss->IELength - MAX_IE_SZ;
}
u8 *r8712_get_capability_from_ie(u8 *ie)
{
return ie + 8 + 2;
}
int r8712_init_mlme_priv(struct _adapter *padapter)
{
return _init_mlme_priv(padapter);
}
void r8712_free_mlme_priv(struct mlme_priv *pmlmepriv)
{
kfree(pmlmepriv->free_bss_buf);
}
static struct wlan_network *alloc_network(struct mlme_priv *pmlmepriv)
{
return _r8712_alloc_network(pmlmepriv);
}
static void free_network_nolock(struct mlme_priv *pmlmepriv,
struct wlan_network *pnetwork)
{
_free_network_nolock(pmlmepriv, pnetwork);
}
void r8712_free_network_queue(struct _adapter *dev)
{
_free_network_queue(dev);
}
/*
return the wlan_network with the matching addr
Shall be called under atomic context...
to avoid possible racing condition...
*/
static struct wlan_network *r8712_find_network(struct __queue *scanned_queue,
u8 *addr)
{
struct wlan_network *pnetwork = _r8712_find_network(scanned_queue,
addr);
return pnetwork;
}
int r8712_is_same_ibss(struct _adapter *adapter, struct wlan_network *pnetwork)
{
int ret = true;
struct security_priv *psecuritypriv = &adapter->securitypriv;
if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
(pnetwork->network.Privacy == 0))
ret = false;
else if ((psecuritypriv->PrivacyAlgrthm == _NO_PRIVACY_) &&
(pnetwork->network.Privacy == 1))
ret = false;
else
ret = true;
return ret;
}
static int is_same_network(struct wlan_bssid_ex *src,
struct wlan_bssid_ex *dst)
{
u16 s_cap, d_cap;
memcpy((u8 *)&s_cap, r8712_get_capability_from_ie(src->IEs), 2);
memcpy((u8 *)&d_cap, r8712_get_capability_from_ie(dst->IEs), 2);
return (src->Ssid.SsidLength == dst->Ssid.SsidLength) &&
(src->Configuration.DSConfig ==
dst->Configuration.DSConfig) &&
((!memcmp(src->MacAddress, dst->MacAddress,
ETH_ALEN))) &&
((!memcmp(src->Ssid.Ssid,
dst->Ssid.Ssid,
src->Ssid.SsidLength))) &&
((s_cap & WLAN_CAPABILITY_IBSS) ==
(d_cap & WLAN_CAPABILITY_IBSS)) &&
((s_cap & WLAN_CAPABILITY_BSS) ==
(d_cap & WLAN_CAPABILITY_BSS));
}
struct wlan_network *r8712_get_oldest_wlan_network(
struct __queue *scanned_queue)
{
struct list_head *plist, *phead;
struct wlan_network *pwlan = NULL;
struct wlan_network *oldest = NULL;
phead = &scanned_queue->queue;
plist = phead->next;
while (1) {
if (end_of_queue_search(phead, plist) == true)
break;
pwlan = LIST_CONTAINOR(plist, struct wlan_network, list);
if (pwlan->fixed != true) {
if (oldest == NULL ||
time_after((unsigned long)oldest->last_scanned,
(unsigned long)pwlan->last_scanned))
oldest = pwlan;
}
plist = plist->next;
}
return oldest;
}
static void update_network(struct wlan_bssid_ex *dst,
struct wlan_bssid_ex *src,
struct _adapter *padapter)
{
u32 last_evm = 0, tmpVal;
if (check_fwstate(&padapter->mlmepriv, _FW_LINKED) &&
is_same_network(&(padapter->mlmepriv.cur_network.network), src)) {
if (padapter->recvpriv.signal_qual_data.total_num++ >=
PHY_LINKQUALITY_SLID_WIN_MAX) {
padapter->recvpriv.signal_qual_data.total_num =
PHY_LINKQUALITY_SLID_WIN_MAX;
last_evm = padapter->recvpriv.signal_qual_data.
elements[padapter->recvpriv.
signal_qual_data.index];
padapter->recvpriv.signal_qual_data.total_val -=
last_evm;
}
padapter->recvpriv.signal_qual_data.total_val += src->Rssi;
padapter->recvpriv.signal_qual_data.
elements[padapter->recvpriv.signal_qual_data.
index++] = src->Rssi;
if (padapter->recvpriv.signal_qual_data.index >=
PHY_LINKQUALITY_SLID_WIN_MAX)
padapter->recvpriv.signal_qual_data.index = 0;
/* <1> Showed on UI for user, in percentage. */
tmpVal = padapter->recvpriv.signal_qual_data.total_val /
padapter->recvpriv.signal_qual_data.total_num;
padapter->recvpriv.signal = (u8)tmpVal;
src->Rssi = padapter->recvpriv.signal;
} else {
src->Rssi = (src->Rssi + dst->Rssi) / 2;
}
memcpy((u8 *)dst, (u8 *)src, r8712_get_wlan_bssid_ex_sz(src));
}
static void update_current_network(struct _adapter *adapter,
struct wlan_bssid_ex *pnetwork)
{
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
if (is_same_network(&(pmlmepriv->cur_network.network), pnetwork)) {
update_network(&(pmlmepriv->cur_network.network),
pnetwork, adapter);
r8712_update_protection(adapter,
(pmlmepriv->cur_network.network.IEs) +
sizeof(struct NDIS_802_11_FIXED_IEs),
pmlmepriv->cur_network.network.IELength);
}
}
/*
Caller must hold pmlmepriv->lock first.
*/
static void update_scanned_network(struct _adapter *adapter,
struct wlan_bssid_ex *target)
{
struct list_head *plist, *phead;
u32 bssid_ex_sz;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
struct __queue *queue = &pmlmepriv->scanned_queue;
struct wlan_network *pnetwork = NULL;
struct wlan_network *oldest = NULL;
phead = &queue->queue;
plist = phead->next;
while (1) {
if (end_of_queue_search(phead, plist))
break;
pnetwork = LIST_CONTAINOR(plist, struct wlan_network, list);
if (is_same_network(&pnetwork->network, target))
break;
if ((oldest == ((struct wlan_network *)0)) ||
time_after((unsigned long)oldest->last_scanned,
(unsigned long)pnetwork->last_scanned))
oldest = pnetwork;
plist = plist->next;
}
/* If we didn't find a match, then get a new network slot to initialize
* with this beacon's information */
if (end_of_queue_search(phead, plist)) {
if (list_empty(&pmlmepriv->free_bss_pool.queue)) {
/* If there are no more slots, expire the oldest */
pnetwork = oldest;
target->Rssi = (pnetwork->network.Rssi +
target->Rssi) / 2;
memcpy(&pnetwork->network, target,
r8712_get_wlan_bssid_ex_sz(target));
pnetwork->last_scanned = jiffies;
} else {
/* Otherwise just pull from the free list */
/* update scan_time */
pnetwork = alloc_network(pmlmepriv);
if (pnetwork == NULL)
return;
bssid_ex_sz = r8712_get_wlan_bssid_ex_sz(target);
target->Length = bssid_ex_sz;
memcpy(&pnetwork->network, target, bssid_ex_sz);
list_add_tail(&pnetwork->list, &queue->queue);
}
} else {
/* we have an entry and we are going to update it. But
* this entry may be already expired. In this case we
* do the same as we found a new net and call the new_net
* handler
*/
update_network(&pnetwork->network, target, adapter);
pnetwork->last_scanned = jiffies;
}
}
static void rtl8711_add_network(struct _adapter *adapter,
struct wlan_bssid_ex *pnetwork)
{
unsigned long irqL;
struct mlme_priv *pmlmepriv = &(((struct _adapter *)adapter)->mlmepriv);
struct __queue *queue = &pmlmepriv->scanned_queue;
spin_lock_irqsave(&queue->lock, irqL);
update_current_network(adapter, pnetwork);
update_scanned_network(adapter, pnetwork);
spin_unlock_irqrestore(&queue->lock, irqL);
}
/*select the desired network based on the capability of the (i)bss.
* check items: (1) security
* (2) network_type
* (3) WMM
* (4) HT
* (5) others
*/
static int is_desired_network(struct _adapter *adapter,
struct wlan_network *pnetwork)
{
u8 wps_ie[512];
uint wps_ielen;
int bselected = true;
struct security_priv *psecuritypriv = &adapter->securitypriv;
if (psecuritypriv->wps_phase) {
if (r8712_get_wps_ie(pnetwork->network.IEs,
pnetwork->network.IELength, wps_ie,
&wps_ielen))
return true;
else
return false;
}
if ((psecuritypriv->PrivacyAlgrthm != _NO_PRIVACY_) &&
(pnetwork->network.Privacy == 0))
bselected = false;
if (check_fwstate(&adapter->mlmepriv, WIFI_ADHOC_STATE)) {
if (pnetwork->network.InfrastructureMode !=
adapter->mlmepriv.cur_network.network.
InfrastructureMode)
bselected = false;
}
return bselected;
}
/* TODO: Perry : For Power Management */
void r8712_atimdone_event_callback(struct _adapter *adapter, u8 *pbuf)
{
}
void r8712_survey_event_callback(struct _adapter *adapter, u8 *pbuf)
{
unsigned long flags;
u32 len;
struct wlan_bssid_ex *pnetwork;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
pnetwork = (struct wlan_bssid_ex *)pbuf;
#ifdef __BIG_ENDIAN
/* endian_convert */
pnetwork->Length = le32_to_cpu(pnetwork->Length);
pnetwork->Ssid.SsidLength = le32_to_cpu(pnetwork->Ssid.SsidLength);
pnetwork->Privacy = le32_to_cpu(pnetwork->Privacy);
pnetwork->Rssi = le32_to_cpu(pnetwork->Rssi);
pnetwork->NetworkTypeInUse = le32_to_cpu(pnetwork->NetworkTypeInUse);
pnetwork->Configuration.ATIMWindow =
le32_to_cpu(pnetwork->Configuration.ATIMWindow);
pnetwork->Configuration.BeaconPeriod =
le32_to_cpu(pnetwork->Configuration.BeaconPeriod);
pnetwork->Configuration.DSConfig =
le32_to_cpu(pnetwork->Configuration.DSConfig);
pnetwork->Configuration.FHConfig.DwellTime =
le32_to_cpu(pnetwork->Configuration.FHConfig.DwellTime);
pnetwork->Configuration.FHConfig.HopPattern =
le32_to_cpu(pnetwork->Configuration.FHConfig.HopPattern);
pnetwork->Configuration.FHConfig.HopSet =
le32_to_cpu(pnetwork->Configuration.FHConfig.HopSet);
pnetwork->Configuration.FHConfig.Length =
le32_to_cpu(pnetwork->Configuration.FHConfig.Length);
pnetwork->Configuration.Length =
le32_to_cpu(pnetwork->Configuration.Length);
pnetwork->InfrastructureMode =
le32_to_cpu(pnetwork->InfrastructureMode);
pnetwork->IELength = le32_to_cpu(pnetwork->IELength);
#endif
len = r8712_get_wlan_bssid_ex_sz(pnetwork);
if (len > sizeof(struct wlan_bssid_ex))
return;
spin_lock_irqsave(&pmlmepriv->lock2, flags);
/* update IBSS_network 's timestamp */
if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) {
if (!memcmp(&(pmlmepriv->cur_network.network.MacAddress),
pnetwork->MacAddress, ETH_ALEN)) {
struct wlan_network *ibss_wlan = NULL;
memcpy(pmlmepriv->cur_network.network.IEs,
pnetwork->IEs, 8);
ibss_wlan = r8712_find_network(
&pmlmepriv->scanned_queue,
pnetwork->MacAddress);
if (ibss_wlan) {
memcpy(ibss_wlan->network.IEs,
pnetwork->IEs, 8);
goto exit;
}
}
}
/* lock pmlmepriv->lock when you accessing network_q */
if (!check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
if (pnetwork->Ssid.Ssid[0] != 0) {
rtl8711_add_network(adapter, pnetwork);
} else {
pnetwork->Ssid.SsidLength = 8;
memcpy(pnetwork->Ssid.Ssid, "<hidden>", 8);
rtl8711_add_network(adapter, pnetwork);
}
}
exit:
spin_unlock_irqrestore(&pmlmepriv->lock2, flags);
}
void r8712_surveydone_event_callback(struct _adapter *adapter, u8 *pbuf)
{
unsigned long irqL;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
spin_lock_irqsave(&pmlmepriv->lock, irqL);
if (check_fwstate(pmlmepriv, _FW_UNDER_SURVEY)) {
del_timer(&pmlmepriv->scan_to_timer);
_clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
}
if (pmlmepriv->to_join) {
if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
if (!check_fwstate(pmlmepriv, _FW_LINKED)) {
set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
if (r8712_select_and_join_from_scan(pmlmepriv)
== _SUCCESS)
mod_timer(&pmlmepriv->assoc_timer, jiffies +
msecs_to_jiffies(MAX_JOIN_TIMEOUT));
else {
struct wlan_bssid_ex *pdev_network =
&(adapter->registrypriv.dev_network);
u8 *pibss =
adapter->registrypriv.
dev_network.MacAddress;
pmlmepriv->fw_state ^= _FW_UNDER_SURVEY;
memcpy(&pdev_network->Ssid,
&pmlmepriv->assoc_ssid,
sizeof(struct
ndis_802_11_ssid));
r8712_update_registrypriv_dev_network
(adapter);
r8712_generate_random_ibss(pibss);
pmlmepriv->fw_state =
WIFI_ADHOC_MASTER_STATE;
pmlmepriv->to_join = false;
}
}
} else {
pmlmepriv->to_join = false;
set_fwstate(pmlmepriv, _FW_UNDER_LINKING);
if (r8712_select_and_join_from_scan(pmlmepriv) ==
_SUCCESS)
mod_timer(&pmlmepriv->assoc_timer, jiffies +
msecs_to_jiffies(MAX_JOIN_TIMEOUT));
else
_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
}
}
spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
}
/*
*r8712_free_assoc_resources: the caller has to lock pmlmepriv->lock
*/
void r8712_free_assoc_resources(struct _adapter *adapter)
{
unsigned long irqL;
struct wlan_network *pwlan = NULL;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
struct sta_priv *pstapriv = &adapter->stapriv;
struct wlan_network *tgt_network = &pmlmepriv->cur_network;
pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
tgt_network->network.MacAddress);
if (check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_AP_STATE)) {
struct sta_info *psta;
psta = r8712_get_stainfo(&adapter->stapriv,
tgt_network->network.MacAddress);
spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
r8712_free_stainfo(adapter, psta);
spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
}
if (check_fwstate(pmlmepriv,
WIFI_ADHOC_STATE | WIFI_ADHOC_MASTER_STATE | WIFI_AP_STATE))
r8712_free_all_stainfo(adapter);
if (pwlan)
pwlan->fixed = false;
if (((check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) &&
(adapter->stapriv.asoc_sta_count == 1)))
free_network_nolock(pmlmepriv, pwlan);
}
/*
*r8712_indicate_connect: the caller has to lock pmlmepriv->lock
*/
void r8712_indicate_connect(struct _adapter *padapter)
{
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
pmlmepriv->to_join = false;
set_fwstate(pmlmepriv, _FW_LINKED);
padapter->ledpriv.LedControlHandler(padapter, LED_CTL_LINK);
r8712_os_indicate_connect(padapter);
if (padapter->registrypriv.power_mgnt > PS_MODE_ACTIVE)
mod_timer(&pmlmepriv->dhcp_timer,
jiffies + msecs_to_jiffies(60000));
}
/*
*r8712_ind_disconnect: the caller has to lock pmlmepriv->lock
*/
void r8712_ind_disconnect(struct _adapter *padapter)
{
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
if (check_fwstate(pmlmepriv, _FW_LINKED)) {
_clr_fwstate_(pmlmepriv, _FW_LINKED);
padapter->ledpriv.LedControlHandler(padapter, LED_CTL_NO_LINK);
r8712_os_indicate_disconnect(padapter);
}
if (padapter->pwrctrlpriv.pwr_mode !=
padapter->registrypriv.power_mgnt) {
del_timer(&pmlmepriv->dhcp_timer);
r8712_set_ps_mode(padapter, padapter->registrypriv.power_mgnt,
padapter->registrypriv.smart_ps);
}
}
/*Notes:
*pnetwork : returns from r8712_joinbss_event_callback
*ptarget_wlan: found from scanned_queue
*if join_res > 0, for (fw_state==WIFI_STATION_STATE), we check if
* "ptarget_sta" & "ptarget_wlan" exist.
*if join_res > 0, for (fw_state==WIFI_ADHOC_STATE), we only check
* if "ptarget_wlan" exist.
*if join_res > 0, update "cur_network->network" from
* "pnetwork->network" if (ptarget_wlan !=NULL).
*/
void r8712_joinbss_event_callback(struct _adapter *adapter, u8 *pbuf)
{
unsigned long irqL = 0, irqL2;
struct sta_info *ptarget_sta = NULL, *pcur_sta = NULL;
struct sta_priv *pstapriv = &adapter->stapriv;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
struct wlan_network *cur_network = &pmlmepriv->cur_network;
struct wlan_network *pcur_wlan = NULL, *ptarget_wlan = NULL;
unsigned int the_same_macaddr = false;
struct wlan_network *pnetwork;
if (sizeof(struct list_head) == 4 * sizeof(u32)) {
pnetwork = kmalloc(sizeof(struct wlan_network), GFP_ATOMIC);
if (!pnetwork)
return;
memcpy((u8 *)pnetwork + 16, (u8 *)pbuf + 8,
sizeof(struct wlan_network) - 16);
} else {
pnetwork = (struct wlan_network *)pbuf;
}
#ifdef __BIG_ENDIAN
/* endian_convert */
pnetwork->join_res = le32_to_cpu(pnetwork->join_res);
pnetwork->network_type = le32_to_cpu(pnetwork->network_type);
pnetwork->network.Length = le32_to_cpu(pnetwork->network.Length);
pnetwork->network.Ssid.SsidLength =
le32_to_cpu(pnetwork->network.Ssid.SsidLength);
pnetwork->network.Privacy = le32_to_cpu(pnetwork->network.Privacy);
pnetwork->network.Rssi = le32_to_cpu(pnetwork->network.Rssi);
pnetwork->network.NetworkTypeInUse =
le32_to_cpu(pnetwork->network.NetworkTypeInUse);
pnetwork->network.Configuration.ATIMWindow =
le32_to_cpu(pnetwork->network.Configuration.ATIMWindow);
pnetwork->network.Configuration.BeaconPeriod =
le32_to_cpu(pnetwork->network.Configuration.BeaconPeriod);
pnetwork->network.Configuration.DSConfig =
le32_to_cpu(pnetwork->network.Configuration.DSConfig);
pnetwork->network.Configuration.FHConfig.DwellTime =
le32_to_cpu(pnetwork->network.Configuration.FHConfig.
DwellTime);
pnetwork->network.Configuration.FHConfig.HopPattern =
le32_to_cpu(pnetwork->network.Configuration.
FHConfig.HopPattern);
pnetwork->network.Configuration.FHConfig.HopSet =
le32_to_cpu(pnetwork->network.Configuration.FHConfig.HopSet);
pnetwork->network.Configuration.FHConfig.Length =
le32_to_cpu(pnetwork->network.Configuration.FHConfig.Length);
pnetwork->network.Configuration.Length =
le32_to_cpu(pnetwork->network.Configuration.Length);
pnetwork->network.InfrastructureMode =
le32_to_cpu(pnetwork->network.InfrastructureMode);
pnetwork->network.IELength = le32_to_cpu(pnetwork->network.IELength);
#endif
the_same_macaddr = !memcmp(pnetwork->network.MacAddress,
cur_network->network.MacAddress, ETH_ALEN);
pnetwork->network.Length =
r8712_get_wlan_bssid_ex_sz(&pnetwork->network);
spin_lock_irqsave(&pmlmepriv->lock, irqL);
if (pnetwork->network.Length > sizeof(struct wlan_bssid_ex))
goto ignore_joinbss_callback;
if (pnetwork->join_res > 0) {
if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
/*s1. find ptarget_wlan*/
if (check_fwstate(pmlmepriv, _FW_LINKED)) {
if (the_same_macaddr) {
ptarget_wlan =
r8712_find_network(&pmlmepriv->
scanned_queue,
cur_network->network.MacAddress);
} else {
pcur_wlan =
r8712_find_network(&pmlmepriv->
scanned_queue,
cur_network->network.MacAddress);
pcur_wlan->fixed = false;
pcur_sta = r8712_get_stainfo(pstapriv,
cur_network->network.MacAddress);
spin_lock_irqsave(&pstapriv->
sta_hash_lock, irqL2);
r8712_free_stainfo(adapter, pcur_sta);
spin_unlock_irqrestore(&(pstapriv->
sta_hash_lock), irqL2);
ptarget_wlan =
r8712_find_network(&pmlmepriv->
scanned_queue,
pnetwork->network.
MacAddress);
if (ptarget_wlan)
ptarget_wlan->fixed = true;
}
} else {
ptarget_wlan = r8712_find_network(&pmlmepriv->
scanned_queue,
pnetwork->network.MacAddress);
if (ptarget_wlan)
ptarget_wlan->fixed = true;
}
if (ptarget_wlan == NULL) {
if (check_fwstate(pmlmepriv,
_FW_UNDER_LINKING))
pmlmepriv->fw_state ^=
_FW_UNDER_LINKING;
goto ignore_joinbss_callback;
}
/*s2. find ptarget_sta & update ptarget_sta*/
if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
if (the_same_macaddr) {
ptarget_sta =
r8712_get_stainfo(pstapriv,
pnetwork->network.MacAddress);
if (ptarget_sta == NULL)
ptarget_sta =
r8712_alloc_stainfo(pstapriv,
pnetwork->network.MacAddress);
} else {
ptarget_sta =
r8712_alloc_stainfo(pstapriv,
pnetwork->network.MacAddress);
}
if (ptarget_sta) /*update ptarget_sta*/ {
ptarget_sta->aid = pnetwork->join_res;
ptarget_sta->qos_option = 1;
ptarget_sta->mac_id = 5;
if (adapter->securitypriv.
AuthAlgrthm == 2) {
adapter->securitypriv.
binstallGrpkey =
false;
adapter->securitypriv.
busetkipkey =
false;
adapter->securitypriv.
bgrpkey_handshake =
false;
ptarget_sta->ieee8021x_blocked
= true;
ptarget_sta->XPrivacy =
adapter->securitypriv.
PrivacyAlgrthm;
memset((u8 *)&ptarget_sta->
x_UncstKey,
0,
sizeof(union Keytype));
memset((u8 *)&ptarget_sta->
tkiprxmickey,
0,
sizeof(union Keytype));
memset((u8 *)&ptarget_sta->
tkiptxmickey,
0,
sizeof(union Keytype));
memset((u8 *)&ptarget_sta->
txpn, 0,
sizeof(union pn48));
memset((u8 *)&ptarget_sta->
rxpn, 0,
sizeof(union pn48));
}
} else {
if (check_fwstate(pmlmepriv,
_FW_UNDER_LINKING))
pmlmepriv->fw_state ^=
_FW_UNDER_LINKING;
goto ignore_joinbss_callback;
}
}
/*s3. update cur_network & indicate connect*/
memcpy(&cur_network->network, &pnetwork->network,
pnetwork->network.Length);
cur_network->aid = pnetwork->join_res;
/*update fw_state will clr _FW_UNDER_LINKING*/
switch (pnetwork->network.InfrastructureMode) {
case Ndis802_11Infrastructure:
pmlmepriv->fw_state = WIFI_STATION_STATE;
break;
case Ndis802_11IBSS:
pmlmepriv->fw_state = WIFI_ADHOC_STATE;
break;
default:
pmlmepriv->fw_state = WIFI_NULL_STATE;
break;
}
r8712_update_protection(adapter,
(cur_network->network.IEs) +
sizeof(struct NDIS_802_11_FIXED_IEs),
(cur_network->network.IELength));
/*TODO: update HT_Capability*/
update_ht_cap(adapter, cur_network->network.IEs,
cur_network->network.IELength);
/*indicate connect*/
if (check_fwstate(pmlmepriv, WIFI_STATION_STATE))
r8712_indicate_connect(adapter);
del_timer(&pmlmepriv->assoc_timer);
} else {
goto ignore_joinbss_callback;
}
} else {
if (check_fwstate(pmlmepriv, _FW_UNDER_LINKING)) {
mod_timer(&pmlmepriv->assoc_timer,
jiffies + msecs_to_jiffies(1));
_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
}
}
ignore_joinbss_callback:
spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
if (sizeof(struct list_head) == 4 * sizeof(u32))
kfree(pnetwork);
}
void r8712_stassoc_event_callback(struct _adapter *adapter, u8 *pbuf)
{
unsigned long irqL;
struct sta_info *psta;
struct mlme_priv *pmlmepriv = &(adapter->mlmepriv);
struct stassoc_event *pstassoc = (struct stassoc_event *)pbuf;
/* to do: */
if (!r8712_access_ctrl(&adapter->acl_list, pstassoc->macaddr))
return;
psta = r8712_get_stainfo(&adapter->stapriv, pstassoc->macaddr);
if (psta != NULL) {
/*the sta have been in sta_info_queue => do nothing
*(between drv has received this event before and
* fw have not yet to set key to CAM_ENTRY) */
return;
}
psta = r8712_alloc_stainfo(&adapter->stapriv, pstassoc->macaddr);
if (psta == NULL)
return;
/* to do : init sta_info variable */
psta->qos_option = 0;
psta->mac_id = le32_to_cpu((uint)pstassoc->cam_id);
/* psta->aid = (uint)pstassoc->cam_id; */
if (adapter->securitypriv.AuthAlgrthm == 2)
psta->XPrivacy = adapter->securitypriv.PrivacyAlgrthm;
psta->ieee8021x_blocked = false;
spin_lock_irqsave(&pmlmepriv->lock, irqL);
if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE) ||
check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
if (adapter->stapriv.asoc_sta_count == 2) {
/* a sta + bc/mc_stainfo (not Ibss_stainfo) */
r8712_indicate_connect(adapter);
}
}
spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
}
void r8712_stadel_event_callback(struct _adapter *adapter, u8 *pbuf)
{
unsigned long irqL, irqL2;
struct sta_info *psta;
struct wlan_network *pwlan = NULL;
struct wlan_bssid_ex *pdev_network = NULL;
u8 *pibss = NULL;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
struct stadel_event *pstadel = (struct stadel_event *)pbuf;
struct sta_priv *pstapriv = &adapter->stapriv;
struct wlan_network *tgt_network = &pmlmepriv->cur_network;
spin_lock_irqsave(&pmlmepriv->lock, irqL2);
if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) {
r8712_ind_disconnect(adapter);
r8712_free_assoc_resources(adapter);
}
if (check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE |
WIFI_ADHOC_STATE)) {
psta = r8712_get_stainfo(&adapter->stapriv, pstadel->macaddr);
spin_lock_irqsave(&pstapriv->sta_hash_lock, irqL);
r8712_free_stainfo(adapter, psta);
spin_unlock_irqrestore(&pstapriv->sta_hash_lock, irqL);
if (adapter->stapriv.asoc_sta_count == 1) {
/*a sta + bc/mc_stainfo (not Ibss_stainfo) */
pwlan = r8712_find_network(&pmlmepriv->scanned_queue,
tgt_network->network.MacAddress);
if (pwlan) {
pwlan->fixed = false;
free_network_nolock(pmlmepriv, pwlan);
}
/*re-create ibss*/
pdev_network = &(adapter->registrypriv.dev_network);
pibss = adapter->registrypriv.dev_network.MacAddress;
memcpy(pdev_network, &tgt_network->network,
r8712_get_wlan_bssid_ex_sz(&tgt_network->
network));
memcpy(&pdev_network->Ssid,
&pmlmepriv->assoc_ssid,
sizeof(struct ndis_802_11_ssid));
r8712_update_registrypriv_dev_network(adapter);
r8712_generate_random_ibss(pibss);
if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE)) {
_clr_fwstate_(pmlmepriv, WIFI_ADHOC_STATE);
set_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE);
}
}
}
spin_unlock_irqrestore(&pmlmepriv->lock, irqL2);
}
void r8712_cpwm_event_callback(struct _adapter *adapter, u8 *pbuf)
{
struct reportpwrstate_parm *preportpwrstate =
(struct reportpwrstate_parm *)pbuf;
preportpwrstate->state |= (u8)(adapter->pwrctrlpriv.cpwm_tog + 0x80);
r8712_cpwm_int_hdl(adapter, preportpwrstate);
}
/* When the Netgear 3500 AP is with WPA2PSK-AES mode, it will send
* the ADDBA req frame with start seq control = 0 to wifi client after
* the WPA handshake and the seqence number of following data packet
* will be 0. In this case, the Rx reorder sequence is not longer than 0
* and the WiFi client will drop the data with seq number 0.
* So, the 8712 firmware has to inform driver with receiving the
* ADDBA-Req frame so that the driver can reset the
* sequence value of Rx reorder control.
*/
void r8712_got_addbareq_event_callback(struct _adapter *adapter, u8 *pbuf)
{
struct ADDBA_Req_Report_parm *pAddbareq_pram =
(struct ADDBA_Req_Report_parm *)pbuf;
struct sta_info *psta;
struct sta_priv *pstapriv = &adapter->stapriv;
struct recv_reorder_ctrl *precvreorder_ctrl = NULL;
psta = r8712_get_stainfo(pstapriv, pAddbareq_pram->MacAddress);
if (psta) {
precvreorder_ctrl =
&psta->recvreorder_ctrl[pAddbareq_pram->tid];
/* set the indicate_seq to 0xffff so that the rx reorder
* can store any following data packet.
*/
precvreorder_ctrl->indicate_seq = 0xffff;
}
}
void r8712_wpspbc_event_callback(struct _adapter *adapter, u8 *pbuf)
{
if (!adapter->securitypriv.wps_hw_pbc_pressed)
adapter->securitypriv.wps_hw_pbc_pressed = true;
}
void _r8712_sitesurvey_ctrl_handler(struct _adapter *adapter)
{
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
struct sitesurvey_ctrl *psitesurveyctrl = &pmlmepriv->sitesurveyctrl;
struct registry_priv *pregistrypriv = &adapter->registrypriv;
u64 current_tx_pkts;
uint current_rx_pkts;
current_tx_pkts = (adapter->xmitpriv.tx_pkts) -
(psitesurveyctrl->last_tx_pkts);
current_rx_pkts = (adapter->recvpriv.rx_pkts) -
(psitesurveyctrl->last_rx_pkts);
psitesurveyctrl->last_tx_pkts = adapter->xmitpriv.tx_pkts;
psitesurveyctrl->last_rx_pkts = adapter->recvpriv.rx_pkts;
if ((current_tx_pkts > pregistrypriv->busy_thresh) ||
(current_rx_pkts > pregistrypriv->busy_thresh))
psitesurveyctrl->traffic_busy = true;
else
psitesurveyctrl->traffic_busy = false;
}
void _r8712_join_timeout_handler(struct _adapter *adapter)
{
unsigned long irqL;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
return;
spin_lock_irqsave(&pmlmepriv->lock, irqL);
_clr_fwstate_(pmlmepriv, _FW_UNDER_LINKING);
pmlmepriv->to_join = false;
if (check_fwstate(pmlmepriv, _FW_LINKED)) {
r8712_os_indicate_disconnect(adapter);
_clr_fwstate_(pmlmepriv, _FW_LINKED);
}
if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt) {
r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
adapter->registrypriv.smart_ps);
}
spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
}
void r8712_scan_timeout_handler (struct _adapter *adapter)
{
unsigned long irqL;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
spin_lock_irqsave(&pmlmepriv->lock, irqL);
_clr_fwstate_(pmlmepriv, _FW_UNDER_SURVEY);
pmlmepriv->to_join = false; /* scan fail, so clear to_join flag */
spin_unlock_irqrestore(&pmlmepriv->lock, irqL);
}
void _r8712_dhcp_timeout_handler (struct _adapter *adapter)
{
if (adapter->bDriverStopped || adapter->bSurpriseRemoved)
return;
if (adapter->pwrctrlpriv.pwr_mode != adapter->registrypriv.power_mgnt)
r8712_set_ps_mode(adapter, adapter->registrypriv.power_mgnt,
adapter->registrypriv.smart_ps);
}
void _r8712_wdg_timeout_handler(struct _adapter *adapter)
{
r8712_wdg_wk_cmd(adapter);
}
int r8712_select_and_join_from_scan(struct mlme_priv *pmlmepriv)
{
struct list_head *phead;
unsigned char *dst_ssid, *src_ssid;
struct _adapter *adapter;
struct __queue *queue = NULL;
struct wlan_network *pnetwork = NULL;
struct wlan_network *pnetwork_max_rssi = NULL;
adapter = (struct _adapter *)pmlmepriv->nic_hdl;
queue = &pmlmepriv->scanned_queue;
phead = &queue->queue;
pmlmepriv->pscanned = phead->next;
while (1) {
if (end_of_queue_search(phead, pmlmepriv->pscanned)) {
if ((pmlmepriv->assoc_by_rssi) &&
(pnetwork_max_rssi != NULL)) {
pnetwork = pnetwork_max_rssi;
goto ask_for_joinbss;
}
return _FAIL;
}
pnetwork = LIST_CONTAINOR(pmlmepriv->pscanned,
struct wlan_network, list);
if (pnetwork == NULL)
return _FAIL;
pmlmepriv->pscanned = pmlmepriv->pscanned->next;
if (pmlmepriv->assoc_by_bssid) {
dst_ssid = pnetwork->network.MacAddress;
src_ssid = pmlmepriv->assoc_bssid;
if (!memcmp(dst_ssid, src_ssid, ETH_ALEN)) {
if (check_fwstate(pmlmepriv, _FW_LINKED)) {
if (is_same_network(&pmlmepriv->
cur_network.network,
&pnetwork->network)) {
_clr_fwstate_(pmlmepriv,
_FW_UNDER_LINKING);
/*r8712_indicate_connect again*/
r8712_indicate_connect(adapter);
return 2;
}
r8712_disassoc_cmd(adapter);
r8712_ind_disconnect(adapter);
r8712_free_assoc_resources(adapter);
}
goto ask_for_joinbss;
}
} else if (pmlmepriv->assoc_ssid.SsidLength == 0) {
goto ask_for_joinbss;
}
dst_ssid = pnetwork->network.Ssid.Ssid;
src_ssid = pmlmepriv->assoc_ssid.Ssid;
if ((pnetwork->network.Ssid.SsidLength ==
pmlmepriv->assoc_ssid.SsidLength) &&
(!memcmp(dst_ssid, src_ssid,
pmlmepriv->assoc_ssid.SsidLength))) {
if (pmlmepriv->assoc_by_rssi) {
/* if the ssid is the same, select the bss
* which has the max rssi*/
if (pnetwork_max_rssi) {
if (pnetwork->network.Rssi >
pnetwork_max_rssi->network.Rssi)
pnetwork_max_rssi = pnetwork;
} else {
pnetwork_max_rssi = pnetwork;
}
} else if (is_desired_network(adapter, pnetwork)) {
if (check_fwstate(pmlmepriv, _FW_LINKED)) {
r8712_disassoc_cmd(adapter);
r8712_free_assoc_resources(adapter);
}
goto ask_for_joinbss;
}
}
}
ask_for_joinbss:
return r8712_joinbss_cmd(adapter, pnetwork);
}
sint r8712_set_auth(struct _adapter *adapter,
struct security_priv *psecuritypriv)
{
struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
struct cmd_obj *pcmd;
struct setauth_parm *psetauthparm;
pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
if (pcmd == NULL)
return _FAIL;
psetauthparm = kzalloc(sizeof(*psetauthparm), GFP_ATOMIC);
if (psetauthparm == NULL) {
kfree(pcmd);
return _FAIL;
}
psetauthparm->mode = (u8)psecuritypriv->AuthAlgrthm;
pcmd->cmdcode = _SetAuth_CMD_;
pcmd->parmbuf = (unsigned char *)psetauthparm;
pcmd->cmdsz = sizeof(struct setauth_parm);
pcmd->rsp = NULL;
pcmd->rspsz = 0;
INIT_LIST_HEAD(&pcmd->list);
r8712_enqueue_cmd(pcmdpriv, pcmd);
return _SUCCESS;
}
sint r8712_set_key(struct _adapter *adapter,
struct security_priv *psecuritypriv,
sint keyid)
{
struct cmd_priv *pcmdpriv = &adapter->cmdpriv;
struct cmd_obj *pcmd;
struct setkey_parm *psetkeyparm;
u8 keylen;
sint ret = _SUCCESS;
pcmd = kmalloc(sizeof(*pcmd), GFP_ATOMIC);
if (pcmd == NULL)
return _FAIL;
psetkeyparm = kzalloc(sizeof(*psetkeyparm), GFP_ATOMIC);
if (psetkeyparm == NULL) {
ret = _FAIL;
goto err_free_cmd;
}
if (psecuritypriv->AuthAlgrthm == 2) { /* 802.1X */
psetkeyparm->algorithm =
(u8)psecuritypriv->XGrpPrivacy;
} else { /* WEP */
psetkeyparm->algorithm =
(u8)psecuritypriv->PrivacyAlgrthm;
}
psetkeyparm->keyid = (u8)keyid;
switch (psetkeyparm->algorithm) {
case _WEP40_:
keylen = 5;
memcpy(psetkeyparm->key,
psecuritypriv->DefKey[keyid].skey, keylen);
break;
case _WEP104_:
keylen = 13;
memcpy(psetkeyparm->key,
psecuritypriv->DefKey[keyid].skey, keylen);
break;
case _TKIP_:
if (keyid < 1 || keyid > 2) {
ret = _FAIL;
goto err_free_parm;
}
keylen = 16;
memcpy(psetkeyparm->key,
&psecuritypriv->XGrpKey[keyid - 1], keylen);
psetkeyparm->grpkey = 1;
break;
case _AES_:
if (keyid < 1 || keyid > 2) {
ret = _FAIL;
goto err_free_parm;
}
keylen = 16;
memcpy(psetkeyparm->key,
&psecuritypriv->XGrpKey[keyid - 1], keylen);
psetkeyparm->grpkey = 1;
break;
default:
ret = _FAIL;
goto err_free_parm;
}
pcmd->cmdcode = _SetKey_CMD_;
pcmd->parmbuf = (u8 *)psetkeyparm;
pcmd->cmdsz = (sizeof(struct setkey_parm));
pcmd->rsp = NULL;
pcmd->rspsz = 0;
INIT_LIST_HEAD(&pcmd->list);
r8712_enqueue_cmd(pcmdpriv, pcmd);
return ret;
err_free_parm:
kfree(psetkeyparm);
err_free_cmd:
kfree(pcmd);
return ret;
}
/* adjust IEs for r8712_joinbss_cmd in WMM */
int r8712_restruct_wmm_ie(struct _adapter *adapter, u8 *in_ie, u8 *out_ie,
uint in_len, uint initial_out_len)
{
unsigned int ielength = 0;
unsigned int i, j;
i = 12; /* after the fixed IE */
while (i < in_len) {
ielength = initial_out_len;
if (in_ie[i] == 0xDD && in_ie[i + 2] == 0x00 &&
in_ie[i + 3] == 0x50 && in_ie[i + 4] == 0xF2 &&
in_ie[i + 5] == 0x02 && i + 5 < in_len) {
/*WMM element ID and OUI*/
for (j = i; j < i + 9; j++) {
out_ie[ielength] = in_ie[j];
ielength++;
}
out_ie[initial_out_len + 1] = 0x07;
out_ie[initial_out_len + 6] = 0x00;
out_ie[initial_out_len + 8] = 0x00;
break;
}
i += (in_ie[i + 1] + 2); /* to the next IE element */
}
return ielength;
}
/*
* Ported from 8185: IsInPreAuthKeyList().
*
* Search by BSSID,
* Return Value:
* -1 :if there is no pre-auth key in the table
* >=0 :if there is pre-auth key, and return the entry id
*/
static int SecIsInPMKIDList(struct _adapter *Adapter, u8 *bssid)
{
struct security_priv *psecuritypriv = &Adapter->securitypriv;
int i = 0;
do {
if (psecuritypriv->PMKIDList[i].bUsed &&
(!memcmp(psecuritypriv->PMKIDList[i].Bssid,
bssid, ETH_ALEN)))
break;
else
i++;
} while (i < NUM_PMKID_CACHE);
if (i == NUM_PMKID_CACHE) {
i = -1; /* Could not find. */
} else {
; /* There is one Pre-Authentication Key for the
* specific BSSID. */
}
return i;
}
sint r8712_restruct_sec_ie(struct _adapter *adapter, u8 *in_ie,
u8 *out_ie, uint in_len)
{
u8 authmode = 0, match;
u8 sec_ie[255], uncst_oui[4], bkup_ie[255];
u8 wpa_oui[4] = {0x0, 0x50, 0xf2, 0x01};
uint ielength, cnt, remove_cnt;
int iEntry;
struct mlme_priv *pmlmepriv = &adapter->mlmepriv;
struct security_priv *psecuritypriv = &adapter->securitypriv;
uint ndisauthmode = psecuritypriv->ndisauthtype;
uint ndissecuritytype = psecuritypriv->ndisencryptstatus;
if ((ndisauthmode == Ndis802_11AuthModeWPA) ||
(ndisauthmode == Ndis802_11AuthModeWPAPSK)) {
authmode = _WPA_IE_ID_;
uncst_oui[0] = 0x0;
uncst_oui[1] = 0x50;
uncst_oui[2] = 0xf2;
}
if ((ndisauthmode == Ndis802_11AuthModeWPA2) ||
(ndisauthmode == Ndis802_11AuthModeWPA2PSK)) {
authmode = _WPA2_IE_ID_;
uncst_oui[0] = 0x0;
uncst_oui[1] = 0x0f;
uncst_oui[2] = 0xac;
}
switch (ndissecuritytype) {
case Ndis802_11Encryption1Enabled:
case Ndis802_11Encryption1KeyAbsent:
uncst_oui[3] = 0x1;
break;
case Ndis802_11Encryption2Enabled:
case Ndis802_11Encryption2KeyAbsent:
uncst_oui[3] = 0x2;
break;
case Ndis802_11Encryption3Enabled:
case Ndis802_11Encryption3KeyAbsent:
uncst_oui[3] = 0x4;
break;
default:
break;
}
/*Search required WPA or WPA2 IE and copy to sec_ie[] */
cnt = 12;
match = false;
while (cnt < in_len) {
if (in_ie[cnt] == authmode) {
if ((authmode == _WPA_IE_ID_) &&
(!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) {
memcpy(&sec_ie[0], &in_ie[cnt],
in_ie[cnt + 1] + 2);
match = true;
break;
}
if (authmode == _WPA2_IE_ID_) {
memcpy(&sec_ie[0], &in_ie[cnt],
in_ie[cnt + 1] + 2);
match = true;
break;
}
if (((authmode == _WPA_IE_ID_) &&
(!memcmp(&in_ie[cnt + 2], &wpa_oui[0], 4))) ||
(authmode == _WPA2_IE_ID_))
memcpy(&bkup_ie[0], &in_ie[cnt],
in_ie[cnt + 1] + 2);
}
cnt += in_ie[cnt + 1] + 2; /*get next*/
}
/*restruct WPA IE or WPA2 IE in sec_ie[] */
if (match) {
if (sec_ie[0] == _WPA_IE_ID_) {
/* parsing SSN IE to select required encryption
* algorithm, and set the bc/mc encryption algorithm */
while (true) {
/*check wpa_oui tag*/
if (memcmp(&sec_ie[2], &wpa_oui[0], 4)) {
match = false;
break;
}
if ((sec_ie[6] != 0x01) || (sec_ie[7] != 0x0)) {
/*IE Ver error*/
match = false;
break;
}
if (!memcmp(&sec_ie[8], &wpa_oui[0], 3)) {
/* get bc/mc encryption type (group
* key type)*/
switch (sec_ie[11]) {
case 0x0: /*none*/
psecuritypriv->XGrpPrivacy =
_NO_PRIVACY_;
break;
case 0x1: /*WEP_40*/
psecuritypriv->XGrpPrivacy =
_WEP40_;
break;
case 0x2: /*TKIP*/
psecuritypriv->XGrpPrivacy =
_TKIP_;
break;
case 0x3: /*AESCCMP*/
case 0x4:
psecuritypriv->XGrpPrivacy =
_AES_;
break;
case 0x5: /*WEP_104*/
psecuritypriv->XGrpPrivacy =
_WEP104_;
break;
}
} else {
match = false;
break;
}
if (sec_ie[12] == 0x01) {
/*check the unicast encryption type*/
if (memcmp(&sec_ie[14],
&uncst_oui[0], 4)) {
match = false;
break;
} /*else the uncst_oui is match*/
} else { /*mixed mode, unicast_enc_type > 1*/
/*select the uncst_oui and remove
* the other uncst_oui*/
cnt = sec_ie[12];
remove_cnt = (cnt - 1) * 4;
sec_ie[12] = 0x01;
memcpy(&sec_ie[14], &uncst_oui[0], 4);
/*remove the other unicast suit*/
memcpy(&sec_ie[18],
&sec_ie[18 + remove_cnt],
sec_ie[1] - 18 + 2 -
remove_cnt);
sec_ie[1] = sec_ie[1] - remove_cnt;
}
break;
}
}
if (authmode == _WPA2_IE_ID_) {
/* parsing RSN IE to select required encryption
* algorithm, and set the bc/mc encryption algorithm */
while (true) {
if ((sec_ie[2] != 0x01) || (sec_ie[3] != 0x0)) {
/*IE Ver error*/
match = false;
break;
}
if (!memcmp(&sec_ie[4], &uncst_oui[0], 3)) {
/*get bc/mc encryption type*/
switch (sec_ie[7]) {
case 0x1: /*WEP_40*/
psecuritypriv->XGrpPrivacy =
_WEP40_;
break;
case 0x2: /*TKIP*/
psecuritypriv->XGrpPrivacy =
_TKIP_;
break;
case 0x4: /*AESWRAP*/
psecuritypriv->XGrpPrivacy =
_AES_;
break;
case 0x5: /*WEP_104*/
psecuritypriv->XGrpPrivacy =
_WEP104_;
break;
default: /*one*/
psecuritypriv->XGrpPrivacy =
_NO_PRIVACY_;
break;
}
} else {
match = false;
break;
}
if (sec_ie[8] == 0x01) {
/*check the unicast encryption type*/
if (memcmp(&sec_ie[10],
&uncst_oui[0], 4)) {
match = false;
break;
} /*else the uncst_oui is match*/
} else { /*mixed mode, unicast_enc_type > 1*/
/*select the uncst_oui and remove the
* other uncst_oui*/
cnt = sec_ie[8];
remove_cnt = (cnt - 1) * 4;
sec_ie[8] = 0x01;
memcpy(&sec_ie[10], &uncst_oui[0], 4);
/*remove the other unicast suit*/
memcpy(&sec_ie[14],
&sec_ie[14 + remove_cnt],
(sec_ie[1] - 14 + 2 -
remove_cnt));
sec_ie[1] = sec_ie[1] - remove_cnt;
}
break;
}
}
}
if ((authmode == _WPA_IE_ID_) || (authmode == _WPA2_IE_ID_)) {
/*copy fixed ie*/
memcpy(out_ie, in_ie, 12);
ielength = 12;
/*copy RSN or SSN*/
if (match) {
memcpy(&out_ie[ielength], &sec_ie[0], sec_ie[1] + 2);
ielength += sec_ie[1] + 2;
if (authmode == _WPA2_IE_ID_) {
/*the Pre-Authentication bit should be zero*/
out_ie[ielength - 1] = 0;
out_ie[ielength - 2] = 0;
}
r8712_report_sec_ie(adapter, authmode, sec_ie);
}
} else {
/*copy fixed ie only*/
memcpy(out_ie, in_ie, 12);
ielength = 12;
if (psecuritypriv->wps_phase) {
memcpy(out_ie + ielength, psecuritypriv->wps_ie,
psecuritypriv->wps_ie_len);
ielength += psecuritypriv->wps_ie_len;
}
}
iEntry = SecIsInPMKIDList(adapter, pmlmepriv->assoc_bssid);
if (iEntry < 0)
return ielength;
if (authmode == _WPA2_IE_ID_) {
out_ie[ielength] = 1;
ielength++;
out_ie[ielength] = 0; /*PMKID count = 0x0100*/
ielength++;
memcpy(&out_ie[ielength],
&psecuritypriv->PMKIDList[iEntry].PMKID, 16);
ielength += 16;
out_ie[13] += 18;/*PMKID length = 2+16*/
}
return ielength;
}
void r8712_init_registrypriv_dev_network(struct _adapter *adapter)
{
struct registry_priv *pregistrypriv = &adapter->registrypriv;
struct eeprom_priv *peepriv = &adapter->eeprompriv;
struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
u8 *myhwaddr = myid(peepriv);
memcpy(pdev_network->MacAddress, myhwaddr, ETH_ALEN);
memcpy(&pdev_network->Ssid, &pregistrypriv->ssid,
sizeof(struct ndis_802_11_ssid));
pdev_network->Configuration.Length =
sizeof(struct NDIS_802_11_CONFIGURATION);
pdev_network->Configuration.BeaconPeriod = 100;
pdev_network->Configuration.FHConfig.Length = 0;
pdev_network->Configuration.FHConfig.HopPattern = 0;
pdev_network->Configuration.FHConfig.HopSet = 0;
pdev_network->Configuration.FHConfig.DwellTime = 0;
}
void r8712_update_registrypriv_dev_network(struct _adapter *adapter)
{
int sz = 0;
struct registry_priv *pregistrypriv = &adapter->registrypriv;
struct wlan_bssid_ex *pdev_network = &pregistrypriv->dev_network;
struct security_priv *psecuritypriv = &adapter->securitypriv;
struct wlan_network *cur_network = &adapter->mlmepriv.cur_network;
pdev_network->Privacy = cpu_to_le32(psecuritypriv->PrivacyAlgrthm
> 0 ? 1 : 0); /* adhoc no 802.1x */
pdev_network->Rssi = 0;
switch (pregistrypriv->wireless_mode) {
case WIRELESS_11B:
pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11DS);
break;
case WIRELESS_11G:
case WIRELESS_11BG:
pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11OFDM24);
break;
case WIRELESS_11A:
pdev_network->NetworkTypeInUse = cpu_to_le32(Ndis802_11OFDM5);
break;
default:
/* TODO */
break;
}
pdev_network->Configuration.DSConfig = cpu_to_le32(
pregistrypriv->channel);
if (cur_network->network.InfrastructureMode == Ndis802_11IBSS)
pdev_network->Configuration.ATIMWindow = cpu_to_le32(3);
pdev_network->InfrastructureMode = cpu_to_le32(
cur_network->network.InfrastructureMode);
/* 1. Supported rates
* 2. IE
*/
sz = r8712_generate_ie(pregistrypriv);
pdev_network->IELength = sz;
pdev_network->Length = r8712_get_wlan_bssid_ex_sz(pdev_network);
}
/*the function is at passive_level*/
void r8712_joinbss_reset(struct _adapter *padapter)
{
int i;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct ht_priv *phtpriv = &pmlmepriv->htpriv;
/* todo: if you want to do something io/reg/hw setting before join_bss,
* please add code here */
phtpriv->ampdu_enable = false;/*reset to disabled*/
for (i = 0; i < 16; i++)
phtpriv->baddbareq_issued[i] = false;/*reset it*/
if (phtpriv->ht_option) {
/* validate usb rx aggregation */
r8712_write8(padapter, 0x102500D9, 48);/*TH = 48 pages, 6k*/
} else {
/* invalidate usb rx aggregation */
/* TH=1 => means that invalidate usb rx aggregation */
r8712_write8(padapter, 0x102500D9, 1);
}
}
/*the function is >= passive_level*/
unsigned int r8712_restructure_ht_ie(struct _adapter *padapter, u8 *in_ie,
u8 *out_ie, uint in_len, uint *pout_len)
{
u32 ielen, out_len;
unsigned char *p;
struct ieee80211_ht_cap ht_capie;
unsigned char WMM_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x00, 0x01, 0x00};
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct qos_priv *pqospriv = &pmlmepriv->qospriv;
struct ht_priv *phtpriv = &pmlmepriv->htpriv;
phtpriv->ht_option = 0;
p = r8712_get_ie(in_ie + 12, _HT_CAPABILITY_IE_, &ielen, in_len - 12);
if (p && (ielen > 0)) {
if (pqospriv->qos_option == 0) {
out_len = *pout_len;
r8712_set_ie(out_ie + out_len, _VENDOR_SPECIFIC_IE_,
_WMM_IE_Length_, WMM_IE, pout_len);
pqospriv->qos_option = 1;
}
out_len = *pout_len;
memset(&ht_capie, 0, sizeof(struct ieee80211_ht_cap));
ht_capie.cap_info = IEEE80211_HT_CAP_SUP_WIDTH |
IEEE80211_HT_CAP_SGI_20 |
IEEE80211_HT_CAP_SGI_40 |
IEEE80211_HT_CAP_TX_STBC |
IEEE80211_HT_CAP_MAX_AMSDU |
IEEE80211_HT_CAP_DSSSCCK40;
ht_capie.ampdu_params_info = (IEEE80211_HT_CAP_AMPDU_FACTOR &
0x03) | (IEEE80211_HT_CAP_AMPDU_DENSITY & 0x00);
r8712_set_ie(out_ie + out_len, _HT_CAPABILITY_IE_,
sizeof(struct ieee80211_ht_cap),
(unsigned char *)&ht_capie, pout_len);
phtpriv->ht_option = 1;
}
return phtpriv->ht_option;
}
/* the function is > passive_level (in critical_section) */
static void update_ht_cap(struct _adapter *padapter, u8 *pie, uint ie_len)
{
u8 *p, max_ampdu_sz;
int i, len;
struct sta_info *bmc_sta, *psta;
struct ieee80211_ht_cap *pht_capie;
struct recv_reorder_ctrl *preorder_ctrl;
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct ht_priv *phtpriv = &pmlmepriv->htpriv;
struct registry_priv *pregistrypriv = &padapter->registrypriv;
struct wlan_network *pcur_network = &(pmlmepriv->cur_network);
if (!phtpriv->ht_option)
return;
/* maybe needs check if ap supports rx ampdu. */
if (!phtpriv->ampdu_enable &&
(pregistrypriv->ampdu_enable == 1))
phtpriv->ampdu_enable = true;
/*check Max Rx A-MPDU Size*/
len = 0;
p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
_HT_CAPABILITY_IE_,
&len, ie_len -
sizeof(struct NDIS_802_11_FIXED_IEs));
if (p && len > 0) {
pht_capie = (struct ieee80211_ht_cap *)(p + 2);
max_ampdu_sz = (pht_capie->ampdu_params_info &
IEEE80211_HT_CAP_AMPDU_FACTOR);
/* max_ampdu_sz (kbytes); */
max_ampdu_sz = 1 << (max_ampdu_sz + 3);
phtpriv->rx_ampdu_maxlen = max_ampdu_sz;
}
/* for A-MPDU Rx reordering buffer control for bmc_sta & sta_info
* if A-MPDU Rx is enabled, resetting rx_ordering_ctrl
* wstart_b(indicate_seq) to default value=0xffff
* todo: check if AP can send A-MPDU packets
*/
bmc_sta = r8712_get_bcmc_stainfo(padapter);
if (bmc_sta) {
for (i = 0; i < 16; i++) {
preorder_ctrl = &bmc_sta->recvreorder_ctrl[i];
preorder_ctrl->indicate_seq = 0xffff;
preorder_ctrl->wend_b = 0xffff;
}
}
psta = r8712_get_stainfo(&padapter->stapriv,
pcur_network->network.MacAddress);
if (psta) {
for (i = 0; i < 16; i++) {
preorder_ctrl = &psta->recvreorder_ctrl[i];
preorder_ctrl->indicate_seq = 0xffff;
preorder_ctrl->wend_b = 0xffff;
}
}
len = 0;
p = r8712_get_ie(pie + sizeof(struct NDIS_802_11_FIXED_IEs),
_HT_ADD_INFO_IE_, &len,
ie_len - sizeof(struct NDIS_802_11_FIXED_IEs));
}
void r8712_issue_addbareq_cmd(struct _adapter *padapter, int priority)
{
struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
struct ht_priv *phtpriv = &pmlmepriv->htpriv;
if ((phtpriv->ht_option == 1) && (phtpriv->ampdu_enable)) {
if (!phtpriv->baddbareq_issued[priority]) {
r8712_addbareq_cmd(padapter, (u8)priority);
phtpriv->baddbareq_issued[priority] = true;
}
}
}