// SPDX-License-Identifier: GPL-2.0
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/* IEEE 802.11 SoftMAC layer
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* Copyright (c) 2005 Andrea Merello <andrea.merello@gmail.com>
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*
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* Mostly extracted from the rtl8180-sa2400 driver for the
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* in-kernel generic ieee802.11 stack.
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*
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* Few lines might be stolen from other part of the rtllib
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* stack. Copyright who own it's copyright
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*
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* WPA code stolen from the ipw2200 driver.
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* Copyright who own it's copyright.
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*/
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#include "rtllib.h"
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#include <linux/random.h>
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#include <linux/delay.h>
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#include <linux/uaccess.h>
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#include <linux/etherdevice.h>
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#include <linux/ieee80211.h>
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#include "dot11d.h"
|
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static void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl);
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|
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static short rtllib_is_54g(struct rtllib_network *net)
|
{
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return (net->rates_ex_len > 0) || (net->rates_len > 4);
|
}
|
|
/* returns the total length needed for placing the RATE MFIE
|
* tag and the EXTENDED RATE MFIE tag if needed.
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* It encludes two bytes per tag for the tag itself and its len
|
*/
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static unsigned int rtllib_MFIE_rate_len(struct rtllib_device *ieee)
|
{
|
unsigned int rate_len = 0;
|
|
if (ieee->modulation & RTLLIB_CCK_MODULATION)
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rate_len = RTLLIB_CCK_RATE_LEN + 2;
|
|
if (ieee->modulation & RTLLIB_OFDM_MODULATION)
|
|
rate_len += RTLLIB_OFDM_RATE_LEN + 2;
|
|
return rate_len;
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}
|
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/* place the MFIE rate, tag to the memory (double) pointed.
|
* Then it updates the pointer so that
|
* it points after the new MFIE tag added.
|
*/
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static void rtllib_MFIE_Brate(struct rtllib_device *ieee, u8 **tag_p)
|
{
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u8 *tag = *tag_p;
|
|
if (ieee->modulation & RTLLIB_CCK_MODULATION) {
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*tag++ = MFIE_TYPE_RATES;
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*tag++ = 4;
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*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
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*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
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*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
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*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
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}
|
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/* We may add an option for custom rates that specific HW
|
* might support
|
*/
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*tag_p = tag;
|
}
|
|
static void rtllib_MFIE_Grate(struct rtllib_device *ieee, u8 **tag_p)
|
{
|
u8 *tag = *tag_p;
|
|
if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
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*tag++ = MFIE_TYPE_RATES_EX;
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*tag++ = 8;
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*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_6MB;
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*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_9MB;
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*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_12MB;
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*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_18MB;
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*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_24MB;
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*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_36MB;
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*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_48MB;
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*tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_54MB;
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}
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/* We may add an option for custom rates that specific HW might
|
* support
|
*/
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*tag_p = tag;
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}
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static void rtllib_WMM_Info(struct rtllib_device *ieee, u8 **tag_p)
|
{
|
u8 *tag = *tag_p;
|
|
*tag++ = MFIE_TYPE_GENERIC;
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*tag++ = 7;
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*tag++ = 0x00;
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*tag++ = 0x50;
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*tag++ = 0xf2;
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*tag++ = 0x02;
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*tag++ = 0x00;
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*tag++ = 0x01;
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*tag++ = MAX_SP_Len;
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*tag_p = tag;
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}
|
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static void rtllib_TURBO_Info(struct rtllib_device *ieee, u8 **tag_p)
|
{
|
u8 *tag = *tag_p;
|
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*tag++ = MFIE_TYPE_GENERIC;
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*tag++ = 7;
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*tag++ = 0x00;
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*tag++ = 0xe0;
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*tag++ = 0x4c;
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*tag++ = 0x01;
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*tag++ = 0x02;
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*tag++ = 0x11;
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*tag++ = 0x00;
|
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*tag_p = tag;
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netdev_alert(ieee->dev, "This is enable turbo mode IE process\n");
|
}
|
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static void enqueue_mgmt(struct rtllib_device *ieee, struct sk_buff *skb)
|
{
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int nh;
|
|
nh = (ieee->mgmt_queue_head + 1) % MGMT_QUEUE_NUM;
|
|
/* if the queue is full but we have newer frames then
|
* just overwrites the oldest.
|
*
|
* if (nh == ieee->mgmt_queue_tail)
|
* return -1;
|
*/
|
ieee->mgmt_queue_head = nh;
|
ieee->mgmt_queue_ring[nh] = skb;
|
|
}
|
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static void init_mgmt_queue(struct rtllib_device *ieee)
|
{
|
ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
|
}
|
|
|
u8
|
MgntQuery_TxRateExcludeCCKRates(struct rtllib_device *ieee)
|
{
|
u16 i;
|
u8 QueryRate = 0;
|
u8 BasicRate;
|
|
|
for (i = 0; i < ieee->current_network.rates_len; i++) {
|
BasicRate = ieee->current_network.rates[i]&0x7F;
|
if (!rtllib_is_cck_rate(BasicRate)) {
|
if (QueryRate == 0) {
|
QueryRate = BasicRate;
|
} else {
|
if (BasicRate < QueryRate)
|
QueryRate = BasicRate;
|
}
|
}
|
}
|
|
if (QueryRate == 0) {
|
QueryRate = 12;
|
netdev_info(ieee->dev, "No BasicRate found!!\n");
|
}
|
return QueryRate;
|
}
|
|
static u8 MgntQuery_MgntFrameTxRate(struct rtllib_device *ieee)
|
{
|
struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
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u8 rate;
|
|
if (pHTInfo->IOTAction & HT_IOT_ACT_MGNT_USE_CCK_6M)
|
rate = 0x0c;
|
else
|
rate = ieee->basic_rate & 0x7f;
|
|
if (rate == 0) {
|
if (ieee->mode == IEEE_A ||
|
ieee->mode == IEEE_N_5G ||
|
(ieee->mode == IEEE_N_24G && !pHTInfo->bCurSuppCCK))
|
rate = 0x0c;
|
else
|
rate = 0x02;
|
}
|
|
return rate;
|
}
|
|
inline void softmac_mgmt_xmit(struct sk_buff *skb, struct rtllib_device *ieee)
|
{
|
unsigned long flags;
|
short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
|
struct rtllib_hdr_3addr *header =
|
(struct rtllib_hdr_3addr *) skb->data;
|
|
struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
|
|
spin_lock_irqsave(&ieee->lock, flags);
|
|
/* called with 2nd param 0, no mgmt lock required */
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rtllib_sta_wakeup(ieee, 0);
|
|
if (le16_to_cpu(header->frame_ctl) == RTLLIB_STYPE_BEACON)
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tcb_desc->queue_index = BEACON_QUEUE;
|
else
|
tcb_desc->queue_index = MGNT_QUEUE;
|
|
if (ieee->disable_mgnt_queue)
|
tcb_desc->queue_index = HIGH_QUEUE;
|
|
tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
|
tcb_desc->RATRIndex = 7;
|
tcb_desc->bTxDisableRateFallBack = 1;
|
tcb_desc->bTxUseDriverAssingedRate = 1;
|
if (single) {
|
if (ieee->queue_stop) {
|
enqueue_mgmt(ieee, skb);
|
} else {
|
header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4);
|
|
if (ieee->seq_ctrl[0] == 0xFFF)
|
ieee->seq_ctrl[0] = 0;
|
else
|
ieee->seq_ctrl[0]++;
|
|
/* avoid watchdog triggers */
|
ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
|
ieee->basic_rate);
|
}
|
|
spin_unlock_irqrestore(&ieee->lock, flags);
|
} else {
|
spin_unlock_irqrestore(&ieee->lock, flags);
|
spin_lock_irqsave(&ieee->mgmt_tx_lock, flags);
|
|
header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
|
|
if (ieee->seq_ctrl[0] == 0xFFF)
|
ieee->seq_ctrl[0] = 0;
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else
|
ieee->seq_ctrl[0]++;
|
|
/* check whether the managed packet queued greater than 5 */
|
if (!ieee->check_nic_enough_desc(ieee->dev,
|
tcb_desc->queue_index) ||
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skb_queue_len(&ieee->skb_waitQ[tcb_desc->queue_index]) ||
|
ieee->queue_stop) {
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/* insert the skb packet to the management queue
|
*
|
* as for the completion function, it does not need
|
* to check it any more.
|
*/
|
netdev_info(ieee->dev,
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"%s():insert to waitqueue, queue_index:%d!\n",
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__func__, tcb_desc->queue_index);
|
skb_queue_tail(&ieee->skb_waitQ[tcb_desc->queue_index],
|
skb);
|
} else {
|
ieee->softmac_hard_start_xmit(skb, ieee->dev);
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}
|
spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
|
}
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}
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|
static inline void
|
softmac_ps_mgmt_xmit(struct sk_buff *skb,
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struct rtllib_device *ieee)
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{
|
short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
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struct rtllib_hdr_3addr *header =
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(struct rtllib_hdr_3addr *) skb->data;
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u16 fc, type, stype;
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struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
|
|
fc = le16_to_cpu(header->frame_ctl);
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type = WLAN_FC_GET_TYPE(fc);
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stype = WLAN_FC_GET_STYPE(fc);
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|
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if (stype != RTLLIB_STYPE_PSPOLL)
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tcb_desc->queue_index = MGNT_QUEUE;
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else
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tcb_desc->queue_index = HIGH_QUEUE;
|
|
if (ieee->disable_mgnt_queue)
|
tcb_desc->queue_index = HIGH_QUEUE;
|
|
|
tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
|
tcb_desc->RATRIndex = 7;
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tcb_desc->bTxDisableRateFallBack = 1;
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tcb_desc->bTxUseDriverAssingedRate = 1;
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if (single) {
|
if (type != RTLLIB_FTYPE_CTL) {
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header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
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|
if (ieee->seq_ctrl[0] == 0xFFF)
|
ieee->seq_ctrl[0] = 0;
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else
|
ieee->seq_ctrl[0]++;
|
|
}
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/* avoid watchdog triggers */
|
ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
|
ieee->basic_rate);
|
|
} else {
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if (type != RTLLIB_FTYPE_CTL) {
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header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
|
|
if (ieee->seq_ctrl[0] == 0xFFF)
|
ieee->seq_ctrl[0] = 0;
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else
|
ieee->seq_ctrl[0]++;
|
}
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ieee->softmac_hard_start_xmit(skb, ieee->dev);
|
|
}
|
}
|
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static inline struct sk_buff *rtllib_probe_req(struct rtllib_device *ieee)
|
{
|
unsigned int len, rate_len;
|
u8 *tag;
|
struct sk_buff *skb;
|
struct rtllib_probe_request *req;
|
|
len = ieee->current_network.ssid_len;
|
|
rate_len = rtllib_MFIE_rate_len(ieee);
|
|
skb = dev_alloc_skb(sizeof(struct rtllib_probe_request) +
|
2 + len + rate_len + ieee->tx_headroom);
|
|
if (!skb)
|
return NULL;
|
|
skb_reserve(skb, ieee->tx_headroom);
|
|
req = skb_put(skb, sizeof(struct rtllib_probe_request));
|
req->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_REQ);
|
req->header.duration_id = 0;
|
|
eth_broadcast_addr(req->header.addr1);
|
ether_addr_copy(req->header.addr2, ieee->dev->dev_addr);
|
eth_broadcast_addr(req->header.addr3);
|
|
tag = skb_put(skb, len + 2 + rate_len);
|
|
*tag++ = MFIE_TYPE_SSID;
|
*tag++ = len;
|
memcpy(tag, ieee->current_network.ssid, len);
|
tag += len;
|
|
rtllib_MFIE_Brate(ieee, &tag);
|
rtllib_MFIE_Grate(ieee, &tag);
|
|
return skb;
|
}
|
|
static struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee);
|
|
static void rtllib_send_beacon(struct rtllib_device *ieee)
|
{
|
struct sk_buff *skb;
|
|
if (!ieee->ieee_up)
|
return;
|
skb = rtllib_get_beacon_(ieee);
|
|
if (skb) {
|
softmac_mgmt_xmit(skb, ieee);
|
ieee->softmac_stats.tx_beacons++;
|
}
|
|
if (ieee->beacon_txing && ieee->ieee_up)
|
mod_timer(&ieee->beacon_timer, jiffies +
|
(msecs_to_jiffies(ieee->current_network.beacon_interval - 5)));
|
}
|
|
|
static void rtllib_send_beacon_cb(struct timer_list *t)
|
{
|
struct rtllib_device *ieee =
|
from_timer(ieee, t, beacon_timer);
|
unsigned long flags;
|
|
spin_lock_irqsave(&ieee->beacon_lock, flags);
|
rtllib_send_beacon(ieee);
|
spin_unlock_irqrestore(&ieee->beacon_lock, flags);
|
}
|
|
/* Enables network monitor mode, all rx packets will be received. */
|
void rtllib_EnableNetMonitorMode(struct net_device *dev,
|
bool bInitState)
|
{
|
struct rtllib_device *ieee = netdev_priv_rsl(dev);
|
|
netdev_info(dev, "========>Enter Monitor Mode\n");
|
|
ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
|
}
|
|
|
/* Disables network monitor mode. Only packets destinated to
|
* us will be received.
|
*/
|
void rtllib_DisableNetMonitorMode(struct net_device *dev,
|
bool bInitState)
|
{
|
struct rtllib_device *ieee = netdev_priv_rsl(dev);
|
|
netdev_info(dev, "========>Exit Monitor Mode\n");
|
|
ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
|
}
|
|
|
/* Enables the specialized promiscuous mode required by Intel.
|
* In this mode, Intel intends to hear traffics from/to other STAs in the
|
* same BSS. Therefore we don't have to disable checking BSSID and we only need
|
* to allow all dest. BUT: if we enable checking BSSID then we can't recv
|
* packets from other STA.
|
*/
|
void rtllib_EnableIntelPromiscuousMode(struct net_device *dev,
|
bool bInitState)
|
{
|
bool bFilterOutNonAssociatedBSSID = false;
|
|
struct rtllib_device *ieee = netdev_priv_rsl(dev);
|
|
netdev_info(dev, "========>Enter Intel Promiscuous Mode\n");
|
|
ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
|
ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
|
(u8 *)&bFilterOutNonAssociatedBSSID);
|
|
ieee->bNetPromiscuousMode = true;
|
}
|
EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode);
|
|
|
/* Disables the specialized promiscuous mode required by Intel.
|
* See MgntEnableIntelPromiscuousMode for detail.
|
*/
|
void rtllib_DisableIntelPromiscuousMode(struct net_device *dev,
|
bool bInitState)
|
{
|
bool bFilterOutNonAssociatedBSSID = true;
|
|
struct rtllib_device *ieee = netdev_priv_rsl(dev);
|
|
netdev_info(dev, "========>Exit Intel Promiscuous Mode\n");
|
|
ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
|
ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
|
(u8 *)&bFilterOutNonAssociatedBSSID);
|
|
ieee->bNetPromiscuousMode = false;
|
}
|
EXPORT_SYMBOL(rtllib_DisableIntelPromiscuousMode);
|
|
static void rtllib_send_probe(struct rtllib_device *ieee, u8 is_mesh)
|
{
|
struct sk_buff *skb;
|
|
skb = rtllib_probe_req(ieee);
|
if (skb) {
|
softmac_mgmt_xmit(skb, ieee);
|
ieee->softmac_stats.tx_probe_rq++;
|
}
|
}
|
|
|
static void rtllib_send_probe_requests(struct rtllib_device *ieee, u8 is_mesh)
|
{
|
if (ieee->active_scan && (ieee->softmac_features &
|
IEEE_SOFTMAC_PROBERQ)) {
|
rtllib_send_probe(ieee, 0);
|
rtllib_send_probe(ieee, 0);
|
}
|
}
|
|
static void rtllib_update_active_chan_map(struct rtllib_device *ieee)
|
{
|
memcpy(ieee->active_channel_map, GET_DOT11D_INFO(ieee)->channel_map,
|
MAX_CHANNEL_NUMBER+1);
|
}
|
|
/* this performs syncro scan blocking the caller until all channels
|
* in the allowed channel map has been checked.
|
*/
|
static void rtllib_softmac_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
|
{
|
union iwreq_data wrqu;
|
short ch = 0;
|
|
rtllib_update_active_chan_map(ieee);
|
|
ieee->be_scan_inprogress = true;
|
|
mutex_lock(&ieee->scan_mutex);
|
|
while (1) {
|
do {
|
ch++;
|
if (ch > MAX_CHANNEL_NUMBER)
|
goto out; /* scan completed */
|
} while (!ieee->active_channel_map[ch]);
|
|
/* this function can be called in two situations
|
* 1- We have switched to ad-hoc mode and we are
|
* performing a complete syncro scan before conclude
|
* there are no interesting cell and to create a
|
* new one. In this case the link state is
|
* RTLLIB_NOLINK until we found an interesting cell.
|
* If so the ieee8021_new_net, called by the RX path
|
* will set the state to RTLLIB_LINKED, so we stop
|
* scanning
|
* 2- We are linked and the root uses run iwlist scan.
|
* So we switch to RTLLIB_LINKED_SCANNING to remember
|
* that we are still logically linked (not interested in
|
* new network events, despite for updating the net list,
|
* but we are temporarly 'unlinked' as the driver shall
|
* not filter RX frames and the channel is changing.
|
* So the only situation in which are interested is to check
|
* if the state become LINKED because of the #1 situation
|
*/
|
|
if (ieee->state == RTLLIB_LINKED)
|
goto out;
|
if (ieee->sync_scan_hurryup) {
|
netdev_info(ieee->dev,
|
"============>sync_scan_hurryup out\n");
|
goto out;
|
}
|
|
ieee->set_chan(ieee->dev, ch);
|
if (ieee->active_channel_map[ch] == 1)
|
rtllib_send_probe_requests(ieee, 0);
|
|
/* this prevent excessive time wait when we
|
* need to wait for a syncro scan to end..
|
*/
|
msleep_interruptible_rsl(RTLLIB_SOFTMAC_SCAN_TIME);
|
}
|
out:
|
ieee->actscanning = false;
|
ieee->sync_scan_hurryup = 0;
|
|
if (ieee->state >= RTLLIB_LINKED) {
|
if (IS_DOT11D_ENABLE(ieee))
|
dot11d_scan_complete(ieee);
|
}
|
mutex_unlock(&ieee->scan_mutex);
|
|
ieee->be_scan_inprogress = false;
|
|
memset(&wrqu, 0, sizeof(wrqu));
|
wireless_send_event(ieee->dev, SIOCGIWSCAN, &wrqu, NULL);
|
}
|
|
static void rtllib_softmac_scan_wq(void *data)
|
{
|
struct rtllib_device *ieee = container_of_dwork_rsl(data,
|
struct rtllib_device, softmac_scan_wq);
|
u8 last_channel = ieee->current_network.channel;
|
|
rtllib_update_active_chan_map(ieee);
|
|
if (!ieee->ieee_up)
|
return;
|
if (rtllib_act_scanning(ieee, true))
|
return;
|
|
mutex_lock(&ieee->scan_mutex);
|
|
if (ieee->eRFPowerState == eRfOff) {
|
netdev_info(ieee->dev,
|
"======>%s():rf state is eRfOff, return\n",
|
__func__);
|
goto out1;
|
}
|
|
do {
|
ieee->current_network.channel =
|
(ieee->current_network.channel + 1) %
|
MAX_CHANNEL_NUMBER;
|
if (ieee->scan_watch_dog++ > MAX_CHANNEL_NUMBER) {
|
if (!ieee->active_channel_map[ieee->current_network.channel])
|
ieee->current_network.channel = 6;
|
goto out; /* no good chans */
|
}
|
} while (!ieee->active_channel_map[ieee->current_network.channel]);
|
|
if (ieee->scanning_continue == 0)
|
goto out;
|
|
ieee->set_chan(ieee->dev, ieee->current_network.channel);
|
|
if (ieee->active_channel_map[ieee->current_network.channel] == 1)
|
rtllib_send_probe_requests(ieee, 0);
|
|
schedule_delayed_work(&ieee->softmac_scan_wq,
|
msecs_to_jiffies(RTLLIB_SOFTMAC_SCAN_TIME));
|
|
mutex_unlock(&ieee->scan_mutex);
|
return;
|
|
out:
|
if (IS_DOT11D_ENABLE(ieee))
|
dot11d_scan_complete(ieee);
|
ieee->current_network.channel = last_channel;
|
|
out1:
|
ieee->actscanning = false;
|
ieee->scan_watch_dog = 0;
|
ieee->scanning_continue = 0;
|
mutex_unlock(&ieee->scan_mutex);
|
}
|
|
|
|
static void rtllib_beacons_start(struct rtllib_device *ieee)
|
{
|
unsigned long flags;
|
|
spin_lock_irqsave(&ieee->beacon_lock, flags);
|
|
ieee->beacon_txing = 1;
|
rtllib_send_beacon(ieee);
|
|
spin_unlock_irqrestore(&ieee->beacon_lock, flags);
|
}
|
|
static void rtllib_beacons_stop(struct rtllib_device *ieee)
|
{
|
unsigned long flags;
|
|
spin_lock_irqsave(&ieee->beacon_lock, flags);
|
|
ieee->beacon_txing = 0;
|
|
spin_unlock_irqrestore(&ieee->beacon_lock, flags);
|
del_timer_sync(&ieee->beacon_timer);
|
|
}
|
|
|
void rtllib_stop_send_beacons(struct rtllib_device *ieee)
|
{
|
if (ieee->stop_send_beacons)
|
ieee->stop_send_beacons(ieee->dev);
|
if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
|
rtllib_beacons_stop(ieee);
|
}
|
EXPORT_SYMBOL(rtllib_stop_send_beacons);
|
|
|
void rtllib_start_send_beacons(struct rtllib_device *ieee)
|
{
|
if (ieee->start_send_beacons)
|
ieee->start_send_beacons(ieee->dev);
|
if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
|
rtllib_beacons_start(ieee);
|
}
|
EXPORT_SYMBOL(rtllib_start_send_beacons);
|
|
|
static void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
|
{
|
mutex_lock(&ieee->scan_mutex);
|
ieee->scan_watch_dog = 0;
|
if (ieee->scanning_continue == 1) {
|
ieee->scanning_continue = 0;
|
ieee->actscanning = false;
|
|
cancel_delayed_work_sync(&ieee->softmac_scan_wq);
|
}
|
|
mutex_unlock(&ieee->scan_mutex);
|
}
|
|
void rtllib_stop_scan(struct rtllib_device *ieee)
|
{
|
if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
|
rtllib_softmac_stop_scan(ieee);
|
} else {
|
if (ieee->rtllib_stop_hw_scan)
|
ieee->rtllib_stop_hw_scan(ieee->dev);
|
}
|
}
|
EXPORT_SYMBOL(rtllib_stop_scan);
|
|
void rtllib_stop_scan_syncro(struct rtllib_device *ieee)
|
{
|
if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
|
ieee->sync_scan_hurryup = 1;
|
} else {
|
if (ieee->rtllib_stop_hw_scan)
|
ieee->rtllib_stop_hw_scan(ieee->dev);
|
}
|
}
|
EXPORT_SYMBOL(rtllib_stop_scan_syncro);
|
|
bool rtllib_act_scanning(struct rtllib_device *ieee, bool sync_scan)
|
{
|
if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
|
if (sync_scan)
|
return ieee->be_scan_inprogress;
|
else
|
return ieee->actscanning || ieee->be_scan_inprogress;
|
} else {
|
return test_bit(STATUS_SCANNING, &ieee->status);
|
}
|
}
|
EXPORT_SYMBOL(rtllib_act_scanning);
|
|
/* called with ieee->lock held */
|
static void rtllib_start_scan(struct rtllib_device *ieee)
|
{
|
RT_TRACE(COMP_DBG, "===>%s()\n", __func__);
|
if (ieee->rtllib_ips_leave_wq != NULL)
|
ieee->rtllib_ips_leave_wq(ieee->dev);
|
|
if (IS_DOT11D_ENABLE(ieee)) {
|
if (IS_COUNTRY_IE_VALID(ieee))
|
RESET_CIE_WATCHDOG(ieee);
|
}
|
if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
|
if (ieee->scanning_continue == 0) {
|
ieee->actscanning = true;
|
ieee->scanning_continue = 1;
|
schedule_delayed_work(&ieee->softmac_scan_wq, 0);
|
}
|
} else {
|
if (ieee->rtllib_start_hw_scan)
|
ieee->rtllib_start_hw_scan(ieee->dev);
|
}
|
}
|
|
/* called with wx_mutex held */
|
void rtllib_start_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
|
{
|
if (IS_DOT11D_ENABLE(ieee)) {
|
if (IS_COUNTRY_IE_VALID(ieee))
|
RESET_CIE_WATCHDOG(ieee);
|
}
|
ieee->sync_scan_hurryup = 0;
|
if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
|
rtllib_softmac_scan_syncro(ieee, is_mesh);
|
} else {
|
if (ieee->rtllib_start_hw_scan)
|
ieee->rtllib_start_hw_scan(ieee->dev);
|
}
|
}
|
EXPORT_SYMBOL(rtllib_start_scan_syncro);
|
|
static inline struct sk_buff *
|
rtllib_authentication_req(struct rtllib_network *beacon,
|
struct rtllib_device *ieee,
|
int challengelen, u8 *daddr)
|
{
|
struct sk_buff *skb;
|
struct rtllib_authentication *auth;
|
int len;
|
|
len = sizeof(struct rtllib_authentication) + challengelen +
|
ieee->tx_headroom + 4;
|
skb = dev_alloc_skb(len);
|
|
if (!skb)
|
return NULL;
|
|
skb_reserve(skb, ieee->tx_headroom);
|
|
auth = skb_put(skb, sizeof(struct rtllib_authentication));
|
|
auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
|
if (challengelen)
|
auth->header.frame_ctl |= cpu_to_le16(RTLLIB_FCTL_WEP);
|
|
auth->header.duration_id = cpu_to_le16(0x013a);
|
ether_addr_copy(auth->header.addr1, beacon->bssid);
|
ether_addr_copy(auth->header.addr2, ieee->dev->dev_addr);
|
ether_addr_copy(auth->header.addr3, beacon->bssid);
|
if (ieee->auth_mode == 0)
|
auth->algorithm = WLAN_AUTH_OPEN;
|
else if (ieee->auth_mode == 1)
|
auth->algorithm = cpu_to_le16(WLAN_AUTH_SHARED_KEY);
|
else if (ieee->auth_mode == 2)
|
auth->algorithm = WLAN_AUTH_OPEN;
|
auth->transaction = cpu_to_le16(ieee->associate_seq);
|
ieee->associate_seq++;
|
|
auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS);
|
|
return skb;
|
}
|
|
static struct sk_buff *rtllib_probe_resp(struct rtllib_device *ieee,
|
const u8 *dest)
|
{
|
u8 *tag;
|
int beacon_size;
|
struct rtllib_probe_response *beacon_buf;
|
struct sk_buff *skb = NULL;
|
int encrypt;
|
int atim_len, erp_len;
|
struct lib80211_crypt_data *crypt;
|
|
char *ssid = ieee->current_network.ssid;
|
int ssid_len = ieee->current_network.ssid_len;
|
int rate_len = ieee->current_network.rates_len+2;
|
int rate_ex_len = ieee->current_network.rates_ex_len;
|
int wpa_ie_len = ieee->wpa_ie_len;
|
u8 erpinfo_content = 0;
|
|
u8 *tmp_ht_cap_buf = NULL;
|
u8 tmp_ht_cap_len = 0;
|
u8 *tmp_ht_info_buf = NULL;
|
u8 tmp_ht_info_len = 0;
|
struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
|
u8 *tmp_generic_ie_buf = NULL;
|
u8 tmp_generic_ie_len = 0;
|
|
if (rate_ex_len > 0)
|
rate_ex_len += 2;
|
|
if (ieee->current_network.capability & WLAN_CAPABILITY_IBSS)
|
atim_len = 4;
|
else
|
atim_len = 0;
|
|
if ((ieee->current_network.mode == IEEE_G) ||
|
(ieee->current_network.mode == IEEE_N_24G &&
|
ieee->pHTInfo->bCurSuppCCK)) {
|
erp_len = 3;
|
erpinfo_content = 0;
|
if (ieee->current_network.buseprotection)
|
erpinfo_content |= ERP_UseProtection;
|
} else
|
erp_len = 0;
|
|
crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
|
encrypt = ieee->host_encrypt && crypt && crypt->ops &&
|
((strcmp(crypt->ops->name, "R-WEP") == 0 || wpa_ie_len));
|
if (ieee->pHTInfo->bCurrentHTSupport) {
|
tmp_ht_cap_buf = (u8 *) &(ieee->pHTInfo->SelfHTCap);
|
tmp_ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
|
tmp_ht_info_buf = (u8 *) &(ieee->pHTInfo->SelfHTInfo);
|
tmp_ht_info_len = sizeof(ieee->pHTInfo->SelfHTInfo);
|
HTConstructCapabilityElement(ieee, tmp_ht_cap_buf,
|
&tmp_ht_cap_len, encrypt, false);
|
HTConstructInfoElement(ieee, tmp_ht_info_buf, &tmp_ht_info_len,
|
encrypt);
|
|
if (pHTInfo->bRegRT2RTAggregation) {
|
tmp_generic_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
|
tmp_generic_ie_len =
|
sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
|
HTConstructRT2RTAggElement(ieee, tmp_generic_ie_buf,
|
&tmp_generic_ie_len);
|
}
|
}
|
|
beacon_size = sizeof(struct rtllib_probe_response)+2+
|
ssid_len + 3 + rate_len + rate_ex_len + atim_len + erp_len
|
+ wpa_ie_len + ieee->tx_headroom;
|
skb = dev_alloc_skb(beacon_size);
|
if (!skb)
|
return NULL;
|
|
skb_reserve(skb, ieee->tx_headroom);
|
|
beacon_buf = skb_put(skb, (beacon_size - ieee->tx_headroom));
|
ether_addr_copy(beacon_buf->header.addr1, dest);
|
ether_addr_copy(beacon_buf->header.addr2, ieee->dev->dev_addr);
|
ether_addr_copy(beacon_buf->header.addr3, ieee->current_network.bssid);
|
|
beacon_buf->header.duration_id = 0;
|
beacon_buf->beacon_interval =
|
cpu_to_le16(ieee->current_network.beacon_interval);
|
beacon_buf->capability =
|
cpu_to_le16(ieee->current_network.capability &
|
WLAN_CAPABILITY_IBSS);
|
beacon_buf->capability |=
|
cpu_to_le16(ieee->current_network.capability &
|
WLAN_CAPABILITY_SHORT_PREAMBLE);
|
|
if (ieee->short_slot && (ieee->current_network.capability &
|
WLAN_CAPABILITY_SHORT_SLOT_TIME))
|
beacon_buf->capability |=
|
cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
|
|
crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
|
if (encrypt)
|
beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
|
|
|
beacon_buf->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_RESP);
|
beacon_buf->info_element[0].id = MFIE_TYPE_SSID;
|
beacon_buf->info_element[0].len = ssid_len;
|
|
tag = (u8 *) beacon_buf->info_element[0].data;
|
|
memcpy(tag, ssid, ssid_len);
|
|
tag += ssid_len;
|
|
*(tag++) = MFIE_TYPE_RATES;
|
*(tag++) = rate_len-2;
|
memcpy(tag, ieee->current_network.rates, rate_len-2);
|
tag += rate_len-2;
|
|
*(tag++) = MFIE_TYPE_DS_SET;
|
*(tag++) = 1;
|
*(tag++) = ieee->current_network.channel;
|
|
if (atim_len) {
|
u16 val16;
|
*(tag++) = MFIE_TYPE_IBSS_SET;
|
*(tag++) = 2;
|
val16 = ieee->current_network.atim_window;
|
memcpy((u8 *)tag, (u8 *)&val16, 2);
|
tag += 2;
|
}
|
|
if (erp_len) {
|
*(tag++) = MFIE_TYPE_ERP;
|
*(tag++) = 1;
|
*(tag++) = erpinfo_content;
|
}
|
if (rate_ex_len) {
|
*(tag++) = MFIE_TYPE_RATES_EX;
|
*(tag++) = rate_ex_len-2;
|
memcpy(tag, ieee->current_network.rates_ex, rate_ex_len-2);
|
tag += rate_ex_len-2;
|
}
|
|
if (wpa_ie_len) {
|
if (ieee->iw_mode == IW_MODE_ADHOC)
|
memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
|
memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
|
tag += ieee->wpa_ie_len;
|
}
|
return skb;
|
}
|
|
static struct sk_buff *rtllib_assoc_resp(struct rtllib_device *ieee, u8 *dest)
|
{
|
struct sk_buff *skb;
|
u8 *tag;
|
|
struct lib80211_crypt_data *crypt;
|
struct rtllib_assoc_response_frame *assoc;
|
short encrypt;
|
|
unsigned int rate_len = rtllib_MFIE_rate_len(ieee);
|
int len = sizeof(struct rtllib_assoc_response_frame) + rate_len +
|
ieee->tx_headroom;
|
|
skb = dev_alloc_skb(len);
|
|
if (!skb)
|
return NULL;
|
|
skb_reserve(skb, ieee->tx_headroom);
|
|
assoc = skb_put(skb, sizeof(struct rtllib_assoc_response_frame));
|
|
assoc->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP);
|
ether_addr_copy(assoc->header.addr1, dest);
|
ether_addr_copy(assoc->header.addr3, ieee->dev->dev_addr);
|
ether_addr_copy(assoc->header.addr2, ieee->dev->dev_addr);
|
assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
|
WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS);
|
|
|
if (ieee->short_slot)
|
assoc->capability |=
|
cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
|
|
if (ieee->host_encrypt)
|
crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
|
else
|
crypt = NULL;
|
|
encrypt = (crypt && crypt->ops);
|
|
if (encrypt)
|
assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
|
|
assoc->status = 0;
|
assoc->aid = cpu_to_le16(ieee->assoc_id);
|
if (ieee->assoc_id == 0x2007)
|
ieee->assoc_id = 0;
|
else
|
ieee->assoc_id++;
|
|
tag = skb_put(skb, rate_len);
|
rtllib_MFIE_Brate(ieee, &tag);
|
rtllib_MFIE_Grate(ieee, &tag);
|
|
return skb;
|
}
|
|
static struct sk_buff *rtllib_auth_resp(struct rtllib_device *ieee, int status,
|
u8 *dest)
|
{
|
struct sk_buff *skb = NULL;
|
struct rtllib_authentication *auth;
|
int len = ieee->tx_headroom + sizeof(struct rtllib_authentication) + 1;
|
|
skb = dev_alloc_skb(len);
|
if (!skb)
|
return NULL;
|
|
skb->len = sizeof(struct rtllib_authentication);
|
|
skb_reserve(skb, ieee->tx_headroom);
|
|
auth = skb_put(skb, sizeof(struct rtllib_authentication));
|
|
auth->status = cpu_to_le16(status);
|
auth->transaction = cpu_to_le16(2);
|
auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);
|
|
ether_addr_copy(auth->header.addr3, ieee->dev->dev_addr);
|
ether_addr_copy(auth->header.addr2, ieee->dev->dev_addr);
|
ether_addr_copy(auth->header.addr1, dest);
|
auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
|
return skb;
|
|
|
}
|
|
static struct sk_buff *rtllib_null_func(struct rtllib_device *ieee, short pwr)
|
{
|
struct sk_buff *skb;
|
struct rtllib_hdr_3addr *hdr;
|
|
skb = dev_alloc_skb(sizeof(struct rtllib_hdr_3addr)+ieee->tx_headroom);
|
if (!skb)
|
return NULL;
|
|
skb_reserve(skb, ieee->tx_headroom);
|
|
hdr = skb_put(skb, sizeof(struct rtllib_hdr_3addr));
|
|
ether_addr_copy(hdr->addr1, ieee->current_network.bssid);
|
ether_addr_copy(hdr->addr2, ieee->dev->dev_addr);
|
ether_addr_copy(hdr->addr3, ieee->current_network.bssid);
|
|
hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_DATA |
|
RTLLIB_STYPE_NULLFUNC | RTLLIB_FCTL_TODS |
|
(pwr ? RTLLIB_FCTL_PM : 0));
|
|
return skb;
|
|
|
}
|
|
static struct sk_buff *rtllib_pspoll_func(struct rtllib_device *ieee)
|
{
|
struct sk_buff *skb;
|
struct rtllib_pspoll_hdr *hdr;
|
|
skb = dev_alloc_skb(sizeof(struct rtllib_pspoll_hdr)+ieee->tx_headroom);
|
if (!skb)
|
return NULL;
|
|
skb_reserve(skb, ieee->tx_headroom);
|
|
hdr = skb_put(skb, sizeof(struct rtllib_pspoll_hdr));
|
|
ether_addr_copy(hdr->bssid, ieee->current_network.bssid);
|
ether_addr_copy(hdr->ta, ieee->dev->dev_addr);
|
|
hdr->aid = cpu_to_le16(ieee->assoc_id | 0xc000);
|
hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_CTL | RTLLIB_STYPE_PSPOLL |
|
RTLLIB_FCTL_PM);
|
|
return skb;
|
|
}
|
|
static void rtllib_resp_to_assoc_rq(struct rtllib_device *ieee, u8 *dest)
|
{
|
struct sk_buff *buf = rtllib_assoc_resp(ieee, dest);
|
|
if (buf)
|
softmac_mgmt_xmit(buf, ieee);
|
}
|
|
|
static void rtllib_resp_to_auth(struct rtllib_device *ieee, int s, u8 *dest)
|
{
|
struct sk_buff *buf = rtllib_auth_resp(ieee, s, dest);
|
|
if (buf)
|
softmac_mgmt_xmit(buf, ieee);
|
}
|
|
|
static void rtllib_resp_to_probe(struct rtllib_device *ieee, u8 *dest)
|
{
|
struct sk_buff *buf = rtllib_probe_resp(ieee, dest);
|
|
if (buf)
|
softmac_mgmt_xmit(buf, ieee);
|
}
|
|
|
static inline int SecIsInPMKIDList(struct rtllib_device *ieee, u8 *bssid)
|
{
|
int i = 0;
|
|
do {
|
if ((ieee->PMKIDList[i].bUsed) &&
|
(memcmp(ieee->PMKIDList[i].Bssid, bssid, ETH_ALEN) == 0))
|
break;
|
i++;
|
} while (i < NUM_PMKID_CACHE);
|
|
if (i == NUM_PMKID_CACHE)
|
i = -1;
|
return i;
|
}
|
|
static inline struct sk_buff *
|
rtllib_association_req(struct rtllib_network *beacon,
|
struct rtllib_device *ieee)
|
{
|
struct sk_buff *skb;
|
struct rtllib_assoc_request_frame *hdr;
|
u8 *tag, *ies;
|
int i;
|
u8 *ht_cap_buf = NULL;
|
u8 ht_cap_len = 0;
|
u8 *realtek_ie_buf = NULL;
|
u8 realtek_ie_len = 0;
|
int wpa_ie_len = ieee->wpa_ie_len;
|
int wps_ie_len = ieee->wps_ie_len;
|
unsigned int ckip_ie_len = 0;
|
unsigned int ccxrm_ie_len = 0;
|
unsigned int cxvernum_ie_len = 0;
|
struct lib80211_crypt_data *crypt;
|
int encrypt;
|
int PMKCacheIdx;
|
|
unsigned int rate_len = (beacon->rates_len ?
|
(beacon->rates_len + 2) : 0) +
|
(beacon->rates_ex_len ? (beacon->rates_ex_len) +
|
2 : 0);
|
|
unsigned int wmm_info_len = beacon->qos_data.supported ? 9 : 0;
|
unsigned int turbo_info_len = beacon->Turbo_Enable ? 9 : 0;
|
|
int len = 0;
|
|
crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
|
if (crypt != NULL)
|
encrypt = ieee->host_encrypt && crypt && crypt->ops &&
|
((strcmp(crypt->ops->name, "R-WEP") == 0 ||
|
wpa_ie_len));
|
else
|
encrypt = 0;
|
|
if ((ieee->rtllib_ap_sec_type &&
|
(ieee->rtllib_ap_sec_type(ieee) & SEC_ALG_TKIP)) ||
|
ieee->bForcedBgMode) {
|
ieee->pHTInfo->bEnableHT = 0;
|
ieee->mode = WIRELESS_MODE_G;
|
}
|
|
if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
|
ht_cap_buf = (u8 *)&(ieee->pHTInfo->SelfHTCap);
|
ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
|
HTConstructCapabilityElement(ieee, ht_cap_buf, &ht_cap_len,
|
encrypt, true);
|
if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
|
realtek_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
|
realtek_ie_len =
|
sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
|
HTConstructRT2RTAggElement(ieee, realtek_ie_buf,
|
&realtek_ie_len);
|
}
|
}
|
|
if (beacon->bCkipSupported)
|
ckip_ie_len = 30+2;
|
if (beacon->bCcxRmEnable)
|
ccxrm_ie_len = 6+2;
|
if (beacon->BssCcxVerNumber >= 2)
|
cxvernum_ie_len = 5+2;
|
|
PMKCacheIdx = SecIsInPMKIDList(ieee, ieee->current_network.bssid);
|
if (PMKCacheIdx >= 0) {
|
wpa_ie_len += 18;
|
netdev_info(ieee->dev, "[PMK cache]: WPA2 IE length: %x\n",
|
wpa_ie_len);
|
}
|
len = sizeof(struct rtllib_assoc_request_frame) + 2
|
+ beacon->ssid_len
|
+ rate_len
|
+ wpa_ie_len
|
+ wps_ie_len
|
+ wmm_info_len
|
+ turbo_info_len
|
+ ht_cap_len
|
+ realtek_ie_len
|
+ ckip_ie_len
|
+ ccxrm_ie_len
|
+ cxvernum_ie_len
|
+ ieee->tx_headroom;
|
|
skb = dev_alloc_skb(len);
|
|
if (!skb)
|
return NULL;
|
|
skb_reserve(skb, ieee->tx_headroom);
|
|
hdr = skb_put(skb, sizeof(struct rtllib_assoc_request_frame) + 2);
|
|
|
hdr->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_REQ);
|
hdr->header.duration_id = cpu_to_le16(37);
|
ether_addr_copy(hdr->header.addr1, beacon->bssid);
|
ether_addr_copy(hdr->header.addr2, ieee->dev->dev_addr);
|
ether_addr_copy(hdr->header.addr3, beacon->bssid);
|
|
ether_addr_copy(ieee->ap_mac_addr, beacon->bssid);
|
|
hdr->capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
|
if (beacon->capability & WLAN_CAPABILITY_PRIVACY)
|
hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
|
|
if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
|
hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
|
|
if (ieee->short_slot &&
|
(beacon->capability&WLAN_CAPABILITY_SHORT_SLOT_TIME))
|
hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
|
|
|
hdr->listen_interval = cpu_to_le16(beacon->listen_interval);
|
|
hdr->info_element[0].id = MFIE_TYPE_SSID;
|
|
hdr->info_element[0].len = beacon->ssid_len;
|
skb_put_data(skb, beacon->ssid, beacon->ssid_len);
|
|
tag = skb_put(skb, rate_len);
|
|
if (beacon->rates_len) {
|
*tag++ = MFIE_TYPE_RATES;
|
*tag++ = beacon->rates_len;
|
for (i = 0; i < beacon->rates_len; i++)
|
*tag++ = beacon->rates[i];
|
}
|
|
if (beacon->rates_ex_len) {
|
*tag++ = MFIE_TYPE_RATES_EX;
|
*tag++ = beacon->rates_ex_len;
|
for (i = 0; i < beacon->rates_ex_len; i++)
|
*tag++ = beacon->rates_ex[i];
|
}
|
|
if (beacon->bCkipSupported) {
|
static const u8 AironetIeOui[] = {0x00, 0x01, 0x66};
|
u8 CcxAironetBuf[30];
|
struct octet_string osCcxAironetIE;
|
|
memset(CcxAironetBuf, 0, 30);
|
osCcxAironetIE.Octet = CcxAironetBuf;
|
osCcxAironetIE.Length = sizeof(CcxAironetBuf);
|
memcpy(osCcxAironetIE.Octet, AironetIeOui,
|
sizeof(AironetIeOui));
|
|
osCcxAironetIE.Octet[IE_CISCO_FLAG_POSITION] |=
|
(SUPPORT_CKIP_PK|SUPPORT_CKIP_MIC);
|
tag = skb_put(skb, ckip_ie_len);
|
*tag++ = MFIE_TYPE_AIRONET;
|
*tag++ = osCcxAironetIE.Length;
|
memcpy(tag, osCcxAironetIE.Octet, osCcxAironetIE.Length);
|
tag += osCcxAironetIE.Length;
|
}
|
|
if (beacon->bCcxRmEnable) {
|
static const u8 CcxRmCapBuf[] = {0x00, 0x40, 0x96, 0x01, 0x01,
|
0x00};
|
struct octet_string osCcxRmCap;
|
|
osCcxRmCap.Octet = (u8 *) CcxRmCapBuf;
|
osCcxRmCap.Length = sizeof(CcxRmCapBuf);
|
tag = skb_put(skb, ccxrm_ie_len);
|
*tag++ = MFIE_TYPE_GENERIC;
|
*tag++ = osCcxRmCap.Length;
|
memcpy(tag, osCcxRmCap.Octet, osCcxRmCap.Length);
|
tag += osCcxRmCap.Length;
|
}
|
|
if (beacon->BssCcxVerNumber >= 2) {
|
u8 CcxVerNumBuf[] = {0x00, 0x40, 0x96, 0x03, 0x00};
|
struct octet_string osCcxVerNum;
|
|
CcxVerNumBuf[4] = beacon->BssCcxVerNumber;
|
osCcxVerNum.Octet = CcxVerNumBuf;
|
osCcxVerNum.Length = sizeof(CcxVerNumBuf);
|
tag = skb_put(skb, cxvernum_ie_len);
|
*tag++ = MFIE_TYPE_GENERIC;
|
*tag++ = osCcxVerNum.Length;
|
memcpy(tag, osCcxVerNum.Octet, osCcxVerNum.Length);
|
tag += osCcxVerNum.Length;
|
}
|
if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
|
if (ieee->pHTInfo->ePeerHTSpecVer != HT_SPEC_VER_EWC) {
|
tag = skb_put(skb, ht_cap_len);
|
*tag++ = MFIE_TYPE_HT_CAP;
|
*tag++ = ht_cap_len - 2;
|
memcpy(tag, ht_cap_buf, ht_cap_len - 2);
|
tag += ht_cap_len - 2;
|
}
|
}
|
|
if (wpa_ie_len) {
|
skb_put_data(skb, ieee->wpa_ie, ieee->wpa_ie_len);
|
|
if (PMKCacheIdx >= 0) {
|
tag = skb_put(skb, 18);
|
*tag = 1;
|
*(tag + 1) = 0;
|
memcpy((tag + 2), &ieee->PMKIDList[PMKCacheIdx].PMKID,
|
16);
|
}
|
}
|
if (wmm_info_len) {
|
tag = skb_put(skb, wmm_info_len);
|
rtllib_WMM_Info(ieee, &tag);
|
}
|
|
if (wps_ie_len && ieee->wps_ie) {
|
skb_put_data(skb, ieee->wps_ie, wps_ie_len);
|
}
|
|
if (turbo_info_len) {
|
tag = skb_put(skb, turbo_info_len);
|
rtllib_TURBO_Info(ieee, &tag);
|
}
|
|
if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
|
if (ieee->pHTInfo->ePeerHTSpecVer == HT_SPEC_VER_EWC) {
|
tag = skb_put(skb, ht_cap_len);
|
*tag++ = MFIE_TYPE_GENERIC;
|
*tag++ = ht_cap_len - 2;
|
memcpy(tag, ht_cap_buf, ht_cap_len - 2);
|
tag += ht_cap_len - 2;
|
}
|
|
if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
|
tag = skb_put(skb, realtek_ie_len);
|
*tag++ = MFIE_TYPE_GENERIC;
|
*tag++ = realtek_ie_len - 2;
|
memcpy(tag, realtek_ie_buf, realtek_ie_len - 2);
|
}
|
}
|
|
kfree(ieee->assocreq_ies);
|
ieee->assocreq_ies = NULL;
|
ies = &(hdr->info_element[0].id);
|
ieee->assocreq_ies_len = (skb->data + skb->len) - ies;
|
ieee->assocreq_ies = kmemdup(ies, ieee->assocreq_ies_len, GFP_ATOMIC);
|
if (!ieee->assocreq_ies)
|
ieee->assocreq_ies_len = 0;
|
|
return skb;
|
}
|
|
static void rtllib_associate_abort(struct rtllib_device *ieee)
|
{
|
unsigned long flags;
|
|
spin_lock_irqsave(&ieee->lock, flags);
|
|
ieee->associate_seq++;
|
|
/* don't scan, and avoid to have the RX path possibily
|
* try again to associate. Even do not react to AUTH or
|
* ASSOC response. Just wait for the retry wq to be scheduled.
|
* Here we will check if there are good nets to associate
|
* with, so we retry or just get back to NO_LINK and scanning
|
*/
|
if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING) {
|
netdev_dbg(ieee->dev, "Authentication failed\n");
|
ieee->softmac_stats.no_auth_rs++;
|
} else {
|
netdev_dbg(ieee->dev, "Association failed\n");
|
ieee->softmac_stats.no_ass_rs++;
|
}
|
|
ieee->state = RTLLIB_ASSOCIATING_RETRY;
|
|
schedule_delayed_work(&ieee->associate_retry_wq,
|
RTLLIB_SOFTMAC_ASSOC_RETRY_TIME);
|
|
spin_unlock_irqrestore(&ieee->lock, flags);
|
}
|
|
static void rtllib_associate_abort_cb(struct timer_list *t)
|
{
|
struct rtllib_device *dev = from_timer(dev, t, associate_timer);
|
|
rtllib_associate_abort(dev);
|
}
|
|
static void rtllib_associate_step1(struct rtllib_device *ieee, u8 *daddr)
|
{
|
struct rtllib_network *beacon = &ieee->current_network;
|
struct sk_buff *skb;
|
|
netdev_dbg(ieee->dev, "Stopping scan\n");
|
|
ieee->softmac_stats.tx_auth_rq++;
|
|
skb = rtllib_authentication_req(beacon, ieee, 0, daddr);
|
|
if (!skb)
|
rtllib_associate_abort(ieee);
|
else {
|
ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATING;
|
netdev_dbg(ieee->dev, "Sending authentication request\n");
|
softmac_mgmt_xmit(skb, ieee);
|
if (!timer_pending(&ieee->associate_timer)) {
|
ieee->associate_timer.expires = jiffies + (HZ / 2);
|
add_timer(&ieee->associate_timer);
|
}
|
}
|
}
|
|
static void rtllib_auth_challenge(struct rtllib_device *ieee, u8 *challenge,
|
int chlen)
|
{
|
u8 *c;
|
struct sk_buff *skb;
|
struct rtllib_network *beacon = &ieee->current_network;
|
|
ieee->associate_seq++;
|
ieee->softmac_stats.tx_auth_rq++;
|
|
skb = rtllib_authentication_req(beacon, ieee, chlen + 2, beacon->bssid);
|
|
if (!skb)
|
rtllib_associate_abort(ieee);
|
else {
|
c = skb_put(skb, chlen+2);
|
*(c++) = MFIE_TYPE_CHALLENGE;
|
*(c++) = chlen;
|
memcpy(c, challenge, chlen);
|
|
netdev_dbg(ieee->dev,
|
"Sending authentication challenge response\n");
|
|
rtllib_encrypt_fragment(ieee, skb,
|
sizeof(struct rtllib_hdr_3addr));
|
|
softmac_mgmt_xmit(skb, ieee);
|
mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
|
}
|
kfree(challenge);
|
}
|
|
static void rtllib_associate_step2(struct rtllib_device *ieee)
|
{
|
struct sk_buff *skb;
|
struct rtllib_network *beacon = &ieee->current_network;
|
|
del_timer_sync(&ieee->associate_timer);
|
|
netdev_dbg(ieee->dev, "Sending association request\n");
|
|
ieee->softmac_stats.tx_ass_rq++;
|
skb = rtllib_association_req(beacon, ieee);
|
if (!skb)
|
rtllib_associate_abort(ieee);
|
else {
|
softmac_mgmt_xmit(skb, ieee);
|
mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
|
}
|
}
|
|
static void rtllib_associate_complete_wq(void *data)
|
{
|
struct rtllib_device *ieee = (struct rtllib_device *)
|
container_of_work_rsl(data,
|
struct rtllib_device,
|
associate_complete_wq);
|
struct rt_pwr_save_ctrl *pPSC = &(ieee->PowerSaveControl);
|
|
netdev_info(ieee->dev, "Associated successfully with %pM\n",
|
ieee->current_network.bssid);
|
if (!ieee->is_silent_reset) {
|
netdev_info(ieee->dev, "normal associate\n");
|
notify_wx_assoc_event(ieee);
|
}
|
|
netif_carrier_on(ieee->dev);
|
ieee->is_roaming = false;
|
if (rtllib_is_54g(&ieee->current_network) &&
|
(ieee->modulation & RTLLIB_OFDM_MODULATION)) {
|
ieee->rate = 108;
|
netdev_info(ieee->dev, "Using G rates:%d\n", ieee->rate);
|
} else {
|
ieee->rate = 22;
|
ieee->SetWirelessMode(ieee->dev, IEEE_B);
|
netdev_info(ieee->dev, "Using B rates:%d\n", ieee->rate);
|
}
|
if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
|
netdev_info(ieee->dev, "Successfully associated, ht enabled\n");
|
HTOnAssocRsp(ieee);
|
} else {
|
netdev_info(ieee->dev,
|
"Successfully associated, ht not enabled(%d, %d)\n",
|
ieee->pHTInfo->bCurrentHTSupport,
|
ieee->pHTInfo->bEnableHT);
|
memset(ieee->dot11HTOperationalRateSet, 0, 16);
|
}
|
ieee->LinkDetectInfo.SlotNum = 2 * (1 +
|
ieee->current_network.beacon_interval /
|
500);
|
if (ieee->LinkDetectInfo.NumRecvBcnInPeriod == 0 ||
|
ieee->LinkDetectInfo.NumRecvDataInPeriod == 0) {
|
ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
|
ieee->LinkDetectInfo.NumRecvDataInPeriod = 1;
|
}
|
pPSC->LpsIdleCount = 0;
|
ieee->link_change(ieee->dev);
|
|
if (ieee->is_silent_reset) {
|
netdev_info(ieee->dev, "silent reset associate\n");
|
ieee->is_silent_reset = false;
|
}
|
|
if (ieee->data_hard_resume)
|
ieee->data_hard_resume(ieee->dev);
|
|
}
|
|
static void rtllib_sta_send_associnfo(struct rtllib_device *ieee)
|
{
|
}
|
|
static void rtllib_associate_complete(struct rtllib_device *ieee)
|
{
|
del_timer_sync(&ieee->associate_timer);
|
|
ieee->state = RTLLIB_LINKED;
|
rtllib_sta_send_associnfo(ieee);
|
|
schedule_work(&ieee->associate_complete_wq);
|
}
|
|
static void rtllib_associate_procedure_wq(void *data)
|
{
|
struct rtllib_device *ieee = container_of_dwork_rsl(data,
|
struct rtllib_device,
|
associate_procedure_wq);
|
rtllib_stop_scan_syncro(ieee);
|
if (ieee->rtllib_ips_leave != NULL)
|
ieee->rtllib_ips_leave(ieee->dev);
|
mutex_lock(&ieee->wx_mutex);
|
|
if (ieee->data_hard_stop)
|
ieee->data_hard_stop(ieee->dev);
|
|
rtllib_stop_scan(ieee);
|
RT_TRACE(COMP_DBG, "===>%s(), chan:%d\n", __func__,
|
ieee->current_network.channel);
|
HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
|
if (ieee->eRFPowerState == eRfOff) {
|
RT_TRACE(COMP_DBG,
|
"=============>%s():Rf state is eRfOff, schedule ipsleave wq again,return\n",
|
__func__);
|
if (ieee->rtllib_ips_leave_wq != NULL)
|
ieee->rtllib_ips_leave_wq(ieee->dev);
|
mutex_unlock(&ieee->wx_mutex);
|
return;
|
}
|
ieee->associate_seq = 1;
|
|
rtllib_associate_step1(ieee, ieee->current_network.bssid);
|
|
mutex_unlock(&ieee->wx_mutex);
|
}
|
|
inline void rtllib_softmac_new_net(struct rtllib_device *ieee,
|
struct rtllib_network *net)
|
{
|
u8 tmp_ssid[IW_ESSID_MAX_SIZE + 1];
|
int tmp_ssid_len = 0;
|
|
short apset, ssidset, ssidbroad, apmatch, ssidmatch;
|
|
/* we are interested in new new only if we are not associated
|
* and we are not associating / authenticating
|
*/
|
if (ieee->state != RTLLIB_NOLINK)
|
return;
|
|
if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability &
|
WLAN_CAPABILITY_ESS))
|
return;
|
|
if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability &
|
WLAN_CAPABILITY_IBSS))
|
return;
|
|
if ((ieee->iw_mode == IW_MODE_ADHOC) &&
|
(net->channel > ieee->ibss_maxjoin_chal))
|
return;
|
if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
|
/* if the user specified the AP MAC, we need also the essid
|
* This could be obtained by beacons or, if the network does not
|
* broadcast it, it can be put manually.
|
*/
|
apset = ieee->wap_set;
|
ssidset = ieee->ssid_set;
|
ssidbroad = !(net->ssid_len == 0 || net->ssid[0] == '\0');
|
apmatch = (memcmp(ieee->current_network.bssid, net->bssid,
|
ETH_ALEN) == 0);
|
if (!ssidbroad) {
|
ssidmatch = (ieee->current_network.ssid_len ==
|
net->hidden_ssid_len) &&
|
(!strncmp(ieee->current_network.ssid,
|
net->hidden_ssid, net->hidden_ssid_len));
|
if (net->hidden_ssid_len > 0) {
|
strncpy(net->ssid, net->hidden_ssid,
|
net->hidden_ssid_len);
|
net->ssid_len = net->hidden_ssid_len;
|
ssidbroad = 1;
|
}
|
} else
|
ssidmatch =
|
(ieee->current_network.ssid_len == net->ssid_len) &&
|
(!strncmp(ieee->current_network.ssid, net->ssid,
|
net->ssid_len));
|
|
/* if the user set the AP check if match.
|
* if the network does not broadcast essid we check the
|
* user supplied ANY essid
|
* if the network does broadcast and the user does not set
|
* essid it is OK
|
* if the network does broadcast and the user did set essid
|
* check if essid match
|
* if the ap is not set, check that the user set the bssid
|
* and the network does broadcast and that those two bssid match
|
*/
|
if ((apset && apmatch &&
|
((ssidset && ssidbroad && ssidmatch) ||
|
(ssidbroad && !ssidset) || (!ssidbroad && ssidset))) ||
|
(!apset && ssidset && ssidbroad && ssidmatch) ||
|
(ieee->is_roaming && ssidset && ssidbroad && ssidmatch)) {
|
/* Save the essid so that if it is hidden, it is
|
* replaced with the essid provided by the user.
|
*/
|
if (!ssidbroad) {
|
memcpy(tmp_ssid, ieee->current_network.ssid,
|
ieee->current_network.ssid_len);
|
tmp_ssid_len = ieee->current_network.ssid_len;
|
}
|
memcpy(&ieee->current_network, net,
|
sizeof(ieee->current_network));
|
if (!ssidbroad) {
|
memcpy(ieee->current_network.ssid, tmp_ssid,
|
tmp_ssid_len);
|
ieee->current_network.ssid_len = tmp_ssid_len;
|
}
|
netdev_info(ieee->dev,
|
"Linking with %s,channel:%d, qos:%d, myHT:%d, networkHT:%d, mode:%x cur_net.flags:0x%x\n",
|
ieee->current_network.ssid,
|
ieee->current_network.channel,
|
ieee->current_network.qos_data.supported,
|
ieee->pHTInfo->bEnableHT,
|
ieee->current_network.bssht.bdSupportHT,
|
ieee->current_network.mode,
|
ieee->current_network.flags);
|
|
if ((rtllib_act_scanning(ieee, false)) &&
|
!(ieee->softmac_features & IEEE_SOFTMAC_SCAN))
|
rtllib_stop_scan_syncro(ieee);
|
|
HTResetIOTSetting(ieee->pHTInfo);
|
ieee->wmm_acm = 0;
|
if (ieee->iw_mode == IW_MODE_INFRA) {
|
/* Join the network for the first time */
|
ieee->AsocRetryCount = 0;
|
if ((ieee->current_network.qos_data.supported == 1) &&
|
ieee->current_network.bssht.bdSupportHT)
|
HTResetSelfAndSavePeerSetting(ieee,
|
&(ieee->current_network));
|
else
|
ieee->pHTInfo->bCurrentHTSupport =
|
false;
|
|
ieee->state = RTLLIB_ASSOCIATING;
|
if (ieee->LedControlHandler != NULL)
|
ieee->LedControlHandler(ieee->dev,
|
LED_CTL_START_TO_LINK);
|
schedule_delayed_work(
|
&ieee->associate_procedure_wq, 0);
|
} else {
|
if (rtllib_is_54g(&ieee->current_network) &&
|
(ieee->modulation &
|
RTLLIB_OFDM_MODULATION)) {
|
ieee->rate = 108;
|
ieee->SetWirelessMode(ieee->dev,
|
IEEE_G);
|
netdev_info(ieee->dev,
|
"Using G rates\n");
|
} else {
|
ieee->rate = 22;
|
ieee->SetWirelessMode(ieee->dev,
|
IEEE_B);
|
netdev_info(ieee->dev,
|
"Using B rates\n");
|
}
|
memset(ieee->dot11HTOperationalRateSet, 0, 16);
|
ieee->state = RTLLIB_LINKED;
|
}
|
}
|
}
|
}
|
|
static void rtllib_softmac_check_all_nets(struct rtllib_device *ieee)
|
{
|
unsigned long flags;
|
struct rtllib_network *target;
|
|
spin_lock_irqsave(&ieee->lock, flags);
|
|
list_for_each_entry(target, &ieee->network_list, list) {
|
|
/* if the state become different that NOLINK means
|
* we had found what we are searching for
|
*/
|
|
if (ieee->state != RTLLIB_NOLINK)
|
break;
|
|
if (ieee->scan_age == 0 || time_after(target->last_scanned +
|
ieee->scan_age, jiffies))
|
rtllib_softmac_new_net(ieee, target);
|
}
|
spin_unlock_irqrestore(&ieee->lock, flags);
|
}
|
|
static inline u16 auth_parse(struct net_device *dev, struct sk_buff *skb,
|
u8 **challenge, int *chlen)
|
{
|
struct rtllib_authentication *a;
|
u8 *t;
|
|
if (skb->len < (sizeof(struct rtllib_authentication) -
|
sizeof(struct rtllib_info_element))) {
|
netdev_dbg(dev, "invalid len in auth resp: %d\n", skb->len);
|
return 0xcafe;
|
}
|
*challenge = NULL;
|
a = (struct rtllib_authentication *) skb->data;
|
if (skb->len > (sizeof(struct rtllib_authentication) + 3)) {
|
t = skb->data + sizeof(struct rtllib_authentication);
|
|
if (*(t++) == MFIE_TYPE_CHALLENGE) {
|
*chlen = *(t++);
|
*challenge = kmemdup(t, *chlen, GFP_ATOMIC);
|
if (!*challenge)
|
return -ENOMEM;
|
}
|
}
|
return le16_to_cpu(a->status);
|
}
|
|
static int auth_rq_parse(struct net_device *dev, struct sk_buff *skb, u8 *dest)
|
{
|
struct rtllib_authentication *a;
|
|
if (skb->len < (sizeof(struct rtllib_authentication) -
|
sizeof(struct rtllib_info_element))) {
|
netdev_dbg(dev, "invalid len in auth request: %d\n", skb->len);
|
return -1;
|
}
|
a = (struct rtllib_authentication *) skb->data;
|
|
ether_addr_copy(dest, a->header.addr2);
|
|
if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN)
|
return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
|
|
return WLAN_STATUS_SUCCESS;
|
}
|
|
static short probe_rq_parse(struct rtllib_device *ieee, struct sk_buff *skb,
|
u8 *src)
|
{
|
u8 *tag;
|
u8 *skbend;
|
u8 *ssid = NULL;
|
u8 ssidlen = 0;
|
struct rtllib_hdr_3addr *header =
|
(struct rtllib_hdr_3addr *) skb->data;
|
bool bssid_match;
|
|
if (skb->len < sizeof(struct rtllib_hdr_3addr))
|
return -1; /* corrupted */
|
|
bssid_match =
|
(!ether_addr_equal(header->addr3, ieee->current_network.bssid)) &&
|
(!is_broadcast_ether_addr(header->addr3));
|
if (bssid_match)
|
return -1;
|
|
ether_addr_copy(src, header->addr2);
|
|
skbend = (u8 *)skb->data + skb->len;
|
|
tag = skb->data + sizeof(struct rtllib_hdr_3addr);
|
|
while (tag + 1 < skbend) {
|
if (*tag == 0) {
|
ssid = tag + 2;
|
ssidlen = *(tag + 1);
|
break;
|
}
|
tag++; /* point to the len field */
|
tag = tag + *(tag); /* point to the last data byte of the tag */
|
tag++; /* point to the next tag */
|
}
|
|
if (ssidlen == 0)
|
return 1;
|
|
if (!ssid)
|
return 1; /* ssid not found in tagged param */
|
|
return !strncmp(ssid, ieee->current_network.ssid, ssidlen);
|
}
|
|
static int assoc_rq_parse(struct net_device *dev, struct sk_buff *skb, u8 *dest)
|
{
|
struct rtllib_assoc_request_frame *a;
|
|
if (skb->len < (sizeof(struct rtllib_assoc_request_frame) -
|
sizeof(struct rtllib_info_element))) {
|
netdev_dbg(dev, "invalid len in auth request:%d\n", skb->len);
|
return -1;
|
}
|
|
a = (struct rtllib_assoc_request_frame *) skb->data;
|
|
ether_addr_copy(dest, a->header.addr2);
|
|
return 0;
|
}
|
|
static inline u16 assoc_parse(struct rtllib_device *ieee, struct sk_buff *skb,
|
int *aid)
|
{
|
struct rtllib_assoc_response_frame *response_head;
|
u16 status_code;
|
|
if (skb->len < sizeof(struct rtllib_assoc_response_frame)) {
|
netdev_dbg(ieee->dev, "Invalid len in auth resp: %d\n",
|
skb->len);
|
return 0xcafe;
|
}
|
|
response_head = (struct rtllib_assoc_response_frame *) skb->data;
|
*aid = le16_to_cpu(response_head->aid) & 0x3fff;
|
|
status_code = le16_to_cpu(response_head->status);
|
if ((status_code == WLAN_STATUS_ASSOC_DENIED_RATES ||
|
status_code == WLAN_STATUS_CAPS_UNSUPPORTED) &&
|
((ieee->mode == IEEE_G) &&
|
(ieee->current_network.mode == IEEE_N_24G) &&
|
(ieee->AsocRetryCount++ < (RT_ASOC_RETRY_LIMIT-1)))) {
|
ieee->pHTInfo->IOTAction |= HT_IOT_ACT_PURE_N_MODE;
|
} else {
|
ieee->AsocRetryCount = 0;
|
}
|
|
return le16_to_cpu(response_head->status);
|
}
|
|
void rtllib_rx_probe_rq(struct rtllib_device *ieee, struct sk_buff *skb)
|
{
|
u8 dest[ETH_ALEN];
|
|
ieee->softmac_stats.rx_probe_rq++;
|
if (probe_rq_parse(ieee, skb, dest) > 0) {
|
ieee->softmac_stats.tx_probe_rs++;
|
rtllib_resp_to_probe(ieee, dest);
|
}
|
}
|
|
static inline void rtllib_rx_auth_rq(struct rtllib_device *ieee,
|
struct sk_buff *skb)
|
{
|
u8 dest[ETH_ALEN];
|
int status;
|
|
ieee->softmac_stats.rx_auth_rq++;
|
|
status = auth_rq_parse(ieee->dev, skb, dest);
|
if (status != -1)
|
rtllib_resp_to_auth(ieee, status, dest);
|
}
|
|
static inline void rtllib_rx_assoc_rq(struct rtllib_device *ieee,
|
struct sk_buff *skb)
|
{
|
u8 dest[ETH_ALEN];
|
|
|
ieee->softmac_stats.rx_ass_rq++;
|
if (assoc_rq_parse(ieee->dev, skb, dest) != -1)
|
rtllib_resp_to_assoc_rq(ieee, dest);
|
|
netdev_info(ieee->dev, "New client associated: %pM\n", dest);
|
}
|
|
void rtllib_sta_ps_send_null_frame(struct rtllib_device *ieee, short pwr)
|
{
|
|
struct sk_buff *buf = rtllib_null_func(ieee, pwr);
|
|
if (buf)
|
softmac_ps_mgmt_xmit(buf, ieee);
|
}
|
EXPORT_SYMBOL(rtllib_sta_ps_send_null_frame);
|
|
void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device *ieee)
|
{
|
struct sk_buff *buf = rtllib_pspoll_func(ieee);
|
|
if (buf)
|
softmac_ps_mgmt_xmit(buf, ieee);
|
}
|
|
static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
|
{
|
int timeout;
|
u8 dtim;
|
struct rt_pwr_save_ctrl *pPSC = &(ieee->PowerSaveControl);
|
|
if (ieee->LPSDelayCnt) {
|
ieee->LPSDelayCnt--;
|
return 0;
|
}
|
|
dtim = ieee->current_network.dtim_data;
|
if (!(dtim & RTLLIB_DTIM_VALID))
|
return 0;
|
timeout = ieee->current_network.beacon_interval;
|
ieee->current_network.dtim_data = RTLLIB_DTIM_INVALID;
|
/* there's no need to nofity AP that I find you buffered
|
* with broadcast packet
|
*/
|
if (dtim & (RTLLIB_DTIM_UCAST & ieee->ps))
|
return 2;
|
|
if (!time_after(jiffies,
|
dev_trans_start(ieee->dev) + msecs_to_jiffies(timeout)))
|
return 0;
|
if (!time_after(jiffies,
|
ieee->last_rx_ps_time + msecs_to_jiffies(timeout)))
|
return 0;
|
if ((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) &&
|
(ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
|
return 0;
|
|
if (time) {
|
if (ieee->bAwakePktSent) {
|
pPSC->LPSAwakeIntvl = 1;
|
} else {
|
u8 MaxPeriod = 1;
|
|
if (pPSC->LPSAwakeIntvl == 0)
|
pPSC->LPSAwakeIntvl = 1;
|
if (pPSC->RegMaxLPSAwakeIntvl == 0)
|
MaxPeriod = 1;
|
else if (pPSC->RegMaxLPSAwakeIntvl == 0xFF)
|
MaxPeriod = ieee->current_network.dtim_period;
|
else
|
MaxPeriod = pPSC->RegMaxLPSAwakeIntvl;
|
pPSC->LPSAwakeIntvl = (pPSC->LPSAwakeIntvl >=
|
MaxPeriod) ? MaxPeriod :
|
(pPSC->LPSAwakeIntvl + 1);
|
}
|
{
|
u8 LPSAwakeIntvl_tmp = 0;
|
u8 period = ieee->current_network.dtim_period;
|
u8 count = ieee->current_network.tim.tim_count;
|
|
if (count == 0) {
|
if (pPSC->LPSAwakeIntvl > period)
|
LPSAwakeIntvl_tmp = period +
|
(pPSC->LPSAwakeIntvl -
|
period) -
|
((pPSC->LPSAwakeIntvl-period) %
|
period);
|
else
|
LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
|
|
} else {
|
if (pPSC->LPSAwakeIntvl >
|
ieee->current_network.tim.tim_count)
|
LPSAwakeIntvl_tmp = count +
|
(pPSC->LPSAwakeIntvl - count) -
|
((pPSC->LPSAwakeIntvl-count)%period);
|
else
|
LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
|
}
|
|
*time = ieee->current_network.last_dtim_sta_time
|
+ msecs_to_jiffies(ieee->current_network.beacon_interval *
|
LPSAwakeIntvl_tmp);
|
}
|
}
|
|
return 1;
|
|
|
}
|
|
static inline void rtllib_sta_ps(struct tasklet_struct *t)
|
{
|
struct rtllib_device *ieee = from_tasklet(ieee, t, ps_task);
|
u64 time;
|
short sleep;
|
unsigned long flags, flags2;
|
|
spin_lock_irqsave(&ieee->lock, flags);
|
|
if ((ieee->ps == RTLLIB_PS_DISABLED ||
|
ieee->iw_mode != IW_MODE_INFRA ||
|
ieee->state != RTLLIB_LINKED)) {
|
RT_TRACE(COMP_DBG,
|
"=====>%s(): no need to ps,wake up!! ieee->ps is %d, ieee->iw_mode is %d, ieee->state is %d\n",
|
__func__, ieee->ps, ieee->iw_mode, ieee->state);
|
spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
|
rtllib_sta_wakeup(ieee, 1);
|
|
spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
|
}
|
sleep = rtllib_sta_ps_sleep(ieee, &time);
|
/* 2 wake, 1 sleep, 0 do nothing */
|
if (sleep == 0)
|
goto out;
|
if (sleep == 1) {
|
if (ieee->sta_sleep == LPS_IS_SLEEP) {
|
ieee->enter_sleep_state(ieee->dev, time);
|
} else if (ieee->sta_sleep == LPS_IS_WAKE) {
|
spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
|
|
if (ieee->ps_is_queue_empty(ieee->dev)) {
|
ieee->sta_sleep = LPS_WAIT_NULL_DATA_SEND;
|
ieee->ack_tx_to_ieee = 1;
|
rtllib_sta_ps_send_null_frame(ieee, 1);
|
ieee->ps_time = time;
|
}
|
spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
|
|
}
|
|
ieee->bAwakePktSent = false;
|
|
} else if (sleep == 2) {
|
spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
|
|
rtllib_sta_wakeup(ieee, 1);
|
|
spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
|
}
|
|
out:
|
spin_unlock_irqrestore(&ieee->lock, flags);
|
|
}
|
|
static void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl)
|
{
|
if (ieee->sta_sleep == LPS_IS_WAKE) {
|
if (nl) {
|
if (ieee->pHTInfo->IOTAction &
|
HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
|
ieee->ack_tx_to_ieee = 1;
|
rtllib_sta_ps_send_null_frame(ieee, 0);
|
} else {
|
ieee->ack_tx_to_ieee = 1;
|
rtllib_sta_ps_send_pspoll_frame(ieee);
|
}
|
}
|
return;
|
|
}
|
|
if (ieee->sta_sleep == LPS_IS_SLEEP)
|
ieee->sta_wake_up(ieee->dev);
|
if (nl) {
|
if (ieee->pHTInfo->IOTAction &
|
HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
|
ieee->ack_tx_to_ieee = 1;
|
rtllib_sta_ps_send_null_frame(ieee, 0);
|
} else {
|
ieee->ack_tx_to_ieee = 1;
|
ieee->polling = true;
|
rtllib_sta_ps_send_pspoll_frame(ieee);
|
}
|
|
} else {
|
ieee->sta_sleep = LPS_IS_WAKE;
|
ieee->polling = false;
|
}
|
}
|
|
void rtllib_ps_tx_ack(struct rtllib_device *ieee, short success)
|
{
|
unsigned long flags, flags2;
|
|
spin_lock_irqsave(&ieee->lock, flags);
|
|
if (ieee->sta_sleep == LPS_WAIT_NULL_DATA_SEND) {
|
/* Null frame with PS bit set */
|
if (success) {
|
ieee->sta_sleep = LPS_IS_SLEEP;
|
ieee->enter_sleep_state(ieee->dev, ieee->ps_time);
|
}
|
/* if the card report not success we can't be sure the AP
|
* has not RXed so we can't assume the AP believe us awake
|
*/
|
} else {/* 21112005 - tx again null without PS bit if lost */
|
|
if ((ieee->sta_sleep == LPS_IS_WAKE) && !success) {
|
spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
|
if (ieee->pHTInfo->IOTAction &
|
HT_IOT_ACT_NULL_DATA_POWER_SAVING)
|
rtllib_sta_ps_send_null_frame(ieee, 0);
|
else
|
rtllib_sta_ps_send_pspoll_frame(ieee);
|
spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
|
}
|
}
|
spin_unlock_irqrestore(&ieee->lock, flags);
|
}
|
EXPORT_SYMBOL(rtllib_ps_tx_ack);
|
|
static void rtllib_process_action(struct rtllib_device *ieee,
|
struct sk_buff *skb)
|
{
|
struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
|
u8 *act = rtllib_get_payload((struct rtllib_hdr *)header);
|
u8 category = 0;
|
|
if (act == NULL) {
|
netdev_warn(ieee->dev,
|
"Error getting payload of action frame\n");
|
return;
|
}
|
|
category = *act;
|
act++;
|
switch (category) {
|
case ACT_CAT_BA:
|
switch (*act) {
|
case ACT_ADDBAREQ:
|
rtllib_rx_ADDBAReq(ieee, skb);
|
break;
|
case ACT_ADDBARSP:
|
rtllib_rx_ADDBARsp(ieee, skb);
|
break;
|
case ACT_DELBA:
|
rtllib_rx_DELBA(ieee, skb);
|
break;
|
}
|
break;
|
default:
|
break;
|
}
|
}
|
|
static inline int
|
rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb,
|
struct rtllib_rx_stats *rx_stats)
|
{
|
u16 errcode;
|
int aid;
|
u8 *ies;
|
struct rtllib_assoc_response_frame *assoc_resp;
|
struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
|
u16 frame_ctl = le16_to_cpu(header->frame_ctl);
|
|
netdev_dbg(ieee->dev, "received [RE]ASSOCIATION RESPONSE (%d)\n",
|
WLAN_FC_GET_STYPE(frame_ctl));
|
|
if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
|
ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATED &&
|
(ieee->iw_mode == IW_MODE_INFRA)) {
|
errcode = assoc_parse(ieee, skb, &aid);
|
if (!errcode) {
|
struct rtllib_network *network =
|
kzalloc(sizeof(struct rtllib_network),
|
GFP_ATOMIC);
|
|
if (!network)
|
return 1;
|
ieee->state = RTLLIB_LINKED;
|
ieee->assoc_id = aid;
|
ieee->softmac_stats.rx_ass_ok++;
|
/* station support qos */
|
/* Let the register setting default with Legacy station */
|
assoc_resp = (struct rtllib_assoc_response_frame *)skb->data;
|
if (ieee->current_network.qos_data.supported == 1) {
|
if (rtllib_parse_info_param(ieee, assoc_resp->info_element,
|
rx_stats->len - sizeof(*assoc_resp),
|
network, rx_stats)) {
|
kfree(network);
|
return 1;
|
}
|
memcpy(ieee->pHTInfo->PeerHTCapBuf,
|
network->bssht.bdHTCapBuf,
|
network->bssht.bdHTCapLen);
|
memcpy(ieee->pHTInfo->PeerHTInfoBuf,
|
network->bssht.bdHTInfoBuf,
|
network->bssht.bdHTInfoLen);
|
if (ieee->handle_assoc_response != NULL)
|
ieee->handle_assoc_response(ieee->dev,
|
(struct rtllib_assoc_response_frame *)header,
|
network);
|
}
|
kfree(network);
|
|
kfree(ieee->assocresp_ies);
|
ieee->assocresp_ies = NULL;
|
ies = &(assoc_resp->info_element[0].id);
|
ieee->assocresp_ies_len = (skb->data + skb->len) - ies;
|
ieee->assocresp_ies = kmemdup(ies,
|
ieee->assocresp_ies_len,
|
GFP_ATOMIC);
|
if (!ieee->assocresp_ies)
|
ieee->assocresp_ies_len = 0;
|
|
rtllib_associate_complete(ieee);
|
} else {
|
/* aid could not been allocated */
|
ieee->softmac_stats.rx_ass_err++;
|
netdev_info(ieee->dev,
|
"Association response status code 0x%x\n",
|
errcode);
|
if (ieee->AsocRetryCount < RT_ASOC_RETRY_LIMIT)
|
schedule_delayed_work(
|
&ieee->associate_procedure_wq, 0);
|
else
|
rtllib_associate_abort(ieee);
|
}
|
}
|
return 0;
|
}
|
|
static void rtllib_rx_auth_resp(struct rtllib_device *ieee, struct sk_buff *skb)
|
{
|
u16 errcode;
|
u8 *challenge;
|
int chlen = 0;
|
bool bSupportNmode = true, bHalfSupportNmode = false;
|
|
errcode = auth_parse(ieee->dev, skb, &challenge, &chlen);
|
|
if (errcode) {
|
ieee->softmac_stats.rx_auth_rs_err++;
|
netdev_info(ieee->dev,
|
"Authentication response status code 0x%x",
|
errcode);
|
rtllib_associate_abort(ieee);
|
return;
|
}
|
|
if (ieee->open_wep || !challenge) {
|
ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATED;
|
ieee->softmac_stats.rx_auth_rs_ok++;
|
if (!(ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE)) {
|
if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) {
|
if (IsHTHalfNmodeAPs(ieee)) {
|
bSupportNmode = true;
|
bHalfSupportNmode = true;
|
} else {
|
bSupportNmode = false;
|
bHalfSupportNmode = false;
|
}
|
}
|
}
|
/* Dummy wirless mode setting to avoid encryption issue */
|
if (bSupportNmode) {
|
ieee->SetWirelessMode(ieee->dev,
|
ieee->current_network.mode);
|
} else {
|
/*TODO*/
|
ieee->SetWirelessMode(ieee->dev, IEEE_G);
|
}
|
|
if ((ieee->current_network.mode == IEEE_N_24G) &&
|
bHalfSupportNmode) {
|
netdev_info(ieee->dev, "======>enter half N mode\n");
|
ieee->bHalfWirelessN24GMode = true;
|
} else {
|
ieee->bHalfWirelessN24GMode = false;
|
}
|
rtllib_associate_step2(ieee);
|
} else {
|
rtllib_auth_challenge(ieee, challenge, chlen);
|
}
|
}
|
|
static inline int
|
rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb,
|
struct rtllib_rx_stats *rx_stats)
|
{
|
|
if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) {
|
if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING &&
|
(ieee->iw_mode == IW_MODE_INFRA)) {
|
netdev_dbg(ieee->dev,
|
"Received authentication response");
|
rtllib_rx_auth_resp(ieee, skb);
|
} else if (ieee->iw_mode == IW_MODE_MASTER) {
|
rtllib_rx_auth_rq(ieee, skb);
|
}
|
}
|
return 0;
|
}
|
|
static inline int
|
rtllib_rx_deauth(struct rtllib_device *ieee, struct sk_buff *skb)
|
{
|
struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
|
u16 frame_ctl;
|
|
if (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0)
|
return 0;
|
|
/* FIXME for now repeat all the association procedure
|
* both for disassociation and deauthentication
|
*/
|
if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
|
ieee->state == RTLLIB_LINKED &&
|
(ieee->iw_mode == IW_MODE_INFRA)) {
|
frame_ctl = le16_to_cpu(header->frame_ctl);
|
netdev_info(ieee->dev,
|
"==========>received disassoc/deauth(%x) frame, reason code:%x\n",
|
WLAN_FC_GET_STYPE(frame_ctl),
|
((struct rtllib_disassoc *)skb->data)->reason);
|
ieee->state = RTLLIB_ASSOCIATING;
|
ieee->softmac_stats.reassoc++;
|
ieee->is_roaming = true;
|
ieee->LinkDetectInfo.bBusyTraffic = false;
|
rtllib_disassociate(ieee);
|
RemovePeerTS(ieee, header->addr2);
|
if (ieee->LedControlHandler != NULL)
|
ieee->LedControlHandler(ieee->dev,
|
LED_CTL_START_TO_LINK);
|
|
if (!(ieee->rtllib_ap_sec_type(ieee) &
|
(SEC_ALG_CCMP|SEC_ALG_TKIP)))
|
schedule_delayed_work(
|
&ieee->associate_procedure_wq, 5);
|
}
|
return 0;
|
}
|
|
inline int rtllib_rx_frame_softmac(struct rtllib_device *ieee,
|
struct sk_buff *skb,
|
struct rtllib_rx_stats *rx_stats, u16 type,
|
u16 stype)
|
{
|
struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
|
u16 frame_ctl;
|
|
if (!ieee->proto_started)
|
return 0;
|
|
frame_ctl = le16_to_cpu(header->frame_ctl);
|
switch (WLAN_FC_GET_STYPE(frame_ctl)) {
|
case RTLLIB_STYPE_ASSOC_RESP:
|
case RTLLIB_STYPE_REASSOC_RESP:
|
if (rtllib_rx_assoc_resp(ieee, skb, rx_stats) == 1)
|
return 1;
|
break;
|
case RTLLIB_STYPE_ASSOC_REQ:
|
case RTLLIB_STYPE_REASSOC_REQ:
|
if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
|
ieee->iw_mode == IW_MODE_MASTER)
|
rtllib_rx_assoc_rq(ieee, skb);
|
break;
|
case RTLLIB_STYPE_AUTH:
|
rtllib_rx_auth(ieee, skb, rx_stats);
|
break;
|
case RTLLIB_STYPE_DISASSOC:
|
case RTLLIB_STYPE_DEAUTH:
|
rtllib_rx_deauth(ieee, skb);
|
break;
|
case RTLLIB_STYPE_MANAGE_ACT:
|
rtllib_process_action(ieee, skb);
|
break;
|
default:
|
return -1;
|
}
|
return 0;
|
}
|
|
/* following are for a simpler TX queue management.
|
* Instead of using netif_[stop/wake]_queue the driver
|
* will use these two functions (plus a reset one), that
|
* will internally use the kernel netif_* and takes
|
* care of the ieee802.11 fragmentation.
|
* So the driver receives a fragment per time and might
|
* call the stop function when it wants to not
|
* have enough room to TX an entire packet.
|
* This might be useful if each fragment needs it's own
|
* descriptor, thus just keep a total free memory > than
|
* the max fragmentation threshold is not enough.. If the
|
* ieee802.11 stack passed a TXB struct then you need
|
* to keep N free descriptors where
|
* N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
|
* In this way you need just one and the 802.11 stack
|
* will take care of buffering fragments and pass them to
|
* to the driver later, when it wakes the queue.
|
*/
|
void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee)
|
{
|
|
unsigned int queue_index = txb->queue_index;
|
unsigned long flags;
|
int i;
|
struct cb_desc *tcb_desc = NULL;
|
unsigned long queue_len = 0;
|
|
spin_lock_irqsave(&ieee->lock, flags);
|
|
/* called with 2nd parm 0, no tx mgmt lock required */
|
rtllib_sta_wakeup(ieee, 0);
|
|
/* update the tx status */
|
tcb_desc = (struct cb_desc *)(txb->fragments[0]->cb +
|
MAX_DEV_ADDR_SIZE);
|
if (tcb_desc->bMulticast)
|
ieee->stats.multicast++;
|
|
/* if xmit available, just xmit it immediately, else just insert it to
|
* the wait queue
|
*/
|
for (i = 0; i < txb->nr_frags; i++) {
|
queue_len = skb_queue_len(&ieee->skb_waitQ[queue_index]);
|
if ((queue_len != 0) ||
|
(!ieee->check_nic_enough_desc(ieee->dev, queue_index)) ||
|
(ieee->queue_stop)) {
|
/* insert the skb packet to the wait queue
|
* as for the completion function, it does not need
|
* to check it any more.
|
*/
|
if (queue_len < 200)
|
skb_queue_tail(&ieee->skb_waitQ[queue_index],
|
txb->fragments[i]);
|
else
|
kfree_skb(txb->fragments[i]);
|
} else {
|
ieee->softmac_data_hard_start_xmit(
|
txb->fragments[i],
|
ieee->dev, ieee->rate);
|
}
|
}
|
|
rtllib_txb_free(txb);
|
|
spin_unlock_irqrestore(&ieee->lock, flags);
|
|
}
|
|
void rtllib_reset_queue(struct rtllib_device *ieee)
|
{
|
unsigned long flags;
|
|
spin_lock_irqsave(&ieee->lock, flags);
|
init_mgmt_queue(ieee);
|
if (ieee->tx_pending.txb) {
|
rtllib_txb_free(ieee->tx_pending.txb);
|
ieee->tx_pending.txb = NULL;
|
}
|
ieee->queue_stop = 0;
|
spin_unlock_irqrestore(&ieee->lock, flags);
|
|
}
|
EXPORT_SYMBOL(rtllib_reset_queue);
|
|
void rtllib_stop_all_queues(struct rtllib_device *ieee)
|
{
|
unsigned int i;
|
|
for (i = 0; i < ieee->dev->num_tx_queues; i++)
|
netdev_get_tx_queue(ieee->dev, i)->trans_start = jiffies;
|
|
netif_tx_stop_all_queues(ieee->dev);
|
}
|
|
void rtllib_wake_all_queues(struct rtllib_device *ieee)
|
{
|
netif_tx_wake_all_queues(ieee->dev);
|
}
|
|
/* called in user context only */
|
static void rtllib_start_master_bss(struct rtllib_device *ieee)
|
{
|
ieee->assoc_id = 1;
|
|
if (ieee->current_network.ssid_len == 0) {
|
strncpy(ieee->current_network.ssid,
|
RTLLIB_DEFAULT_TX_ESSID,
|
IW_ESSID_MAX_SIZE);
|
|
ieee->current_network.ssid_len =
|
strlen(RTLLIB_DEFAULT_TX_ESSID);
|
ieee->ssid_set = 1;
|
}
|
|
ether_addr_copy(ieee->current_network.bssid, ieee->dev->dev_addr);
|
|
ieee->set_chan(ieee->dev, ieee->current_network.channel);
|
ieee->state = RTLLIB_LINKED;
|
ieee->link_change(ieee->dev);
|
notify_wx_assoc_event(ieee);
|
|
if (ieee->data_hard_resume)
|
ieee->data_hard_resume(ieee->dev);
|
|
netif_carrier_on(ieee->dev);
|
}
|
|
static void rtllib_start_monitor_mode(struct rtllib_device *ieee)
|
{
|
/* reset hardware status */
|
if (ieee->raw_tx) {
|
if (ieee->data_hard_resume)
|
ieee->data_hard_resume(ieee->dev);
|
|
netif_carrier_on(ieee->dev);
|
}
|
}
|
|
static void rtllib_start_ibss_wq(void *data)
|
{
|
struct rtllib_device *ieee = container_of_dwork_rsl(data,
|
struct rtllib_device, start_ibss_wq);
|
/* iwconfig mode ad-hoc will schedule this and return
|
* on the other hand this will block further iwconfig SET
|
* operations because of the wx_mutex hold.
|
* Anyway some most set operations set a flag to speed-up
|
* (abort) this wq (when syncro scanning) before sleeping
|
* on the mutex
|
*/
|
if (!ieee->proto_started) {
|
netdev_info(ieee->dev, "==========oh driver down return\n");
|
return;
|
}
|
mutex_lock(&ieee->wx_mutex);
|
|
if (ieee->current_network.ssid_len == 0) {
|
strcpy(ieee->current_network.ssid, RTLLIB_DEFAULT_TX_ESSID);
|
ieee->current_network.ssid_len = strlen(RTLLIB_DEFAULT_TX_ESSID);
|
ieee->ssid_set = 1;
|
}
|
|
ieee->state = RTLLIB_NOLINK;
|
ieee->mode = IEEE_G;
|
/* check if we have this cell in our network list */
|
rtllib_softmac_check_all_nets(ieee);
|
|
|
/* if not then the state is not linked. Maybe the user switched to
|
* ad-hoc mode just after being in monitor mode, or just after
|
* being very few time in managed mode (so the card have had no
|
* time to scan all the chans..) or we have just run up the iface
|
* after setting ad-hoc mode. So we have to give another try..
|
* Here, in ibss mode, should be safe to do this without extra care
|
* (in bss mode we had to make sure no-one tried to associate when
|
* we had just checked the ieee->state and we was going to start the
|
* scan) because in ibss mode the rtllib_new_net function, when
|
* finds a good net, just set the ieee->state to RTLLIB_LINKED,
|
* so, at worst, we waste a bit of time to initiate an unneeded syncro
|
* scan, that will stop at the first round because it sees the state
|
* associated.
|
*/
|
if (ieee->state == RTLLIB_NOLINK)
|
rtllib_start_scan_syncro(ieee, 0);
|
|
/* the network definitively is not here.. create a new cell */
|
if (ieee->state == RTLLIB_NOLINK) {
|
netdev_info(ieee->dev, "creating new IBSS cell\n");
|
ieee->current_network.channel = ieee->bss_start_channel;
|
if (!ieee->wap_set)
|
eth_random_addr(ieee->current_network.bssid);
|
|
if (ieee->modulation & RTLLIB_CCK_MODULATION) {
|
|
ieee->current_network.rates_len = 4;
|
|
ieee->current_network.rates[0] =
|
RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
|
ieee->current_network.rates[1] =
|
RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
|
ieee->current_network.rates[2] =
|
RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
|
ieee->current_network.rates[3] =
|
RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
|
|
} else
|
ieee->current_network.rates_len = 0;
|
|
if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
|
ieee->current_network.rates_ex_len = 8;
|
|
ieee->current_network.rates_ex[0] =
|
RTLLIB_OFDM_RATE_6MB;
|
ieee->current_network.rates_ex[1] =
|
RTLLIB_OFDM_RATE_9MB;
|
ieee->current_network.rates_ex[2] =
|
RTLLIB_OFDM_RATE_12MB;
|
ieee->current_network.rates_ex[3] =
|
RTLLIB_OFDM_RATE_18MB;
|
ieee->current_network.rates_ex[4] =
|
RTLLIB_OFDM_RATE_24MB;
|
ieee->current_network.rates_ex[5] =
|
RTLLIB_OFDM_RATE_36MB;
|
ieee->current_network.rates_ex[6] =
|
RTLLIB_OFDM_RATE_48MB;
|
ieee->current_network.rates_ex[7] =
|
RTLLIB_OFDM_RATE_54MB;
|
|
ieee->rate = 108;
|
} else {
|
ieee->current_network.rates_ex_len = 0;
|
ieee->rate = 22;
|
}
|
|
ieee->current_network.qos_data.supported = 0;
|
ieee->SetWirelessMode(ieee->dev, IEEE_G);
|
ieee->current_network.mode = ieee->mode;
|
ieee->current_network.atim_window = 0;
|
ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
|
}
|
|
netdev_info(ieee->dev, "%s(): ieee->mode = %d\n", __func__, ieee->mode);
|
if ((ieee->mode == IEEE_N_24G) || (ieee->mode == IEEE_N_5G))
|
HTUseDefaultSetting(ieee);
|
else
|
ieee->pHTInfo->bCurrentHTSupport = false;
|
|
ieee->SetHwRegHandler(ieee->dev, HW_VAR_MEDIA_STATUS,
|
(u8 *)(&ieee->state));
|
|
ieee->state = RTLLIB_LINKED;
|
ieee->link_change(ieee->dev);
|
|
HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
|
if (ieee->LedControlHandler != NULL)
|
ieee->LedControlHandler(ieee->dev, LED_CTL_LINK);
|
|
rtllib_start_send_beacons(ieee);
|
|
notify_wx_assoc_event(ieee);
|
|
if (ieee->data_hard_resume)
|
ieee->data_hard_resume(ieee->dev);
|
|
netif_carrier_on(ieee->dev);
|
|
mutex_unlock(&ieee->wx_mutex);
|
}
|
|
inline void rtllib_start_ibss(struct rtllib_device *ieee)
|
{
|
schedule_delayed_work(&ieee->start_ibss_wq, msecs_to_jiffies(150));
|
}
|
|
/* this is called only in user context, with wx_mutex held */
|
static void rtllib_start_bss(struct rtllib_device *ieee)
|
{
|
unsigned long flags;
|
|
if (IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee)) {
|
if (!ieee->global_domain)
|
return;
|
}
|
/* check if we have already found the net we
|
* are interested in (if any).
|
* if not (we are disassociated and we are not
|
* in associating / authenticating phase) start the background scanning.
|
*/
|
rtllib_softmac_check_all_nets(ieee);
|
|
/* ensure no-one start an associating process (thus setting
|
* the ieee->state to rtllib_ASSOCIATING) while we
|
* have just checked it and we are going to enable scan.
|
* The rtllib_new_net function is always called with
|
* lock held (from both rtllib_softmac_check_all_nets and
|
* the rx path), so we cannot be in the middle of such function
|
*/
|
spin_lock_irqsave(&ieee->lock, flags);
|
|
if (ieee->state == RTLLIB_NOLINK)
|
rtllib_start_scan(ieee);
|
spin_unlock_irqrestore(&ieee->lock, flags);
|
}
|
|
static void rtllib_link_change_wq(void *data)
|
{
|
struct rtllib_device *ieee = container_of_dwork_rsl(data,
|
struct rtllib_device, link_change_wq);
|
ieee->link_change(ieee->dev);
|
}
|
/* called only in userspace context */
|
void rtllib_disassociate(struct rtllib_device *ieee)
|
{
|
netif_carrier_off(ieee->dev);
|
if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
|
rtllib_reset_queue(ieee);
|
|
if (ieee->data_hard_stop)
|
ieee->data_hard_stop(ieee->dev);
|
if (IS_DOT11D_ENABLE(ieee))
|
dot11d_reset(ieee);
|
ieee->state = RTLLIB_NOLINK;
|
ieee->is_set_key = false;
|
ieee->wap_set = 0;
|
|
schedule_delayed_work(&ieee->link_change_wq, 0);
|
|
notify_wx_assoc_event(ieee);
|
}
|
|
static void rtllib_associate_retry_wq(void *data)
|
{
|
struct rtllib_device *ieee = container_of_dwork_rsl(data,
|
struct rtllib_device, associate_retry_wq);
|
unsigned long flags;
|
|
mutex_lock(&ieee->wx_mutex);
|
if (!ieee->proto_started)
|
goto exit;
|
|
if (ieee->state != RTLLIB_ASSOCIATING_RETRY)
|
goto exit;
|
|
/* until we do not set the state to RTLLIB_NOLINK
|
* there are no possibility to have someone else trying
|
* to start an association procedure (we get here with
|
* ieee->state = RTLLIB_ASSOCIATING).
|
* When we set the state to RTLLIB_NOLINK it is possible
|
* that the RX path run an attempt to associate, but
|
* both rtllib_softmac_check_all_nets and the
|
* RX path works with ieee->lock held so there are no
|
* problems. If we are still disassociated then start a scan.
|
* the lock here is necessary to ensure no one try to start
|
* an association procedure when we have just checked the
|
* state and we are going to start the scan.
|
*/
|
ieee->beinretry = true;
|
ieee->state = RTLLIB_NOLINK;
|
|
rtllib_softmac_check_all_nets(ieee);
|
|
spin_lock_irqsave(&ieee->lock, flags);
|
|
if (ieee->state == RTLLIB_NOLINK)
|
rtllib_start_scan(ieee);
|
spin_unlock_irqrestore(&ieee->lock, flags);
|
|
ieee->beinretry = false;
|
exit:
|
mutex_unlock(&ieee->wx_mutex);
|
}
|
|
static struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee)
|
{
|
static const u8 broadcast_addr[] = {
|
0xff, 0xff, 0xff, 0xff, 0xff, 0xff
|
};
|
struct sk_buff *skb;
|
struct rtllib_probe_response *b;
|
|
skb = rtllib_probe_resp(ieee, broadcast_addr);
|
|
if (!skb)
|
return NULL;
|
|
b = (struct rtllib_probe_response *) skb->data;
|
b->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_BEACON);
|
|
return skb;
|
|
}
|
|
struct sk_buff *rtllib_get_beacon(struct rtllib_device *ieee)
|
{
|
struct sk_buff *skb;
|
struct rtllib_probe_response *b;
|
|
skb = rtllib_get_beacon_(ieee);
|
if (!skb)
|
return NULL;
|
|
b = (struct rtllib_probe_response *) skb->data;
|
b->header.seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
|
|
if (ieee->seq_ctrl[0] == 0xFFF)
|
ieee->seq_ctrl[0] = 0;
|
else
|
ieee->seq_ctrl[0]++;
|
|
return skb;
|
}
|
EXPORT_SYMBOL(rtllib_get_beacon);
|
|
void rtllib_softmac_stop_protocol(struct rtllib_device *ieee, u8 mesh_flag,
|
u8 shutdown)
|
{
|
rtllib_stop_scan_syncro(ieee);
|
mutex_lock(&ieee->wx_mutex);
|
rtllib_stop_protocol(ieee, shutdown);
|
mutex_unlock(&ieee->wx_mutex);
|
}
|
EXPORT_SYMBOL(rtllib_softmac_stop_protocol);
|
|
|
void rtllib_stop_protocol(struct rtllib_device *ieee, u8 shutdown)
|
{
|
if (!ieee->proto_started)
|
return;
|
|
if (shutdown) {
|
ieee->proto_started = 0;
|
ieee->proto_stoppping = 1;
|
if (ieee->rtllib_ips_leave != NULL)
|
ieee->rtllib_ips_leave(ieee->dev);
|
}
|
|
rtllib_stop_send_beacons(ieee);
|
del_timer_sync(&ieee->associate_timer);
|
cancel_delayed_work_sync(&ieee->associate_retry_wq);
|
cancel_delayed_work_sync(&ieee->start_ibss_wq);
|
cancel_delayed_work_sync(&ieee->link_change_wq);
|
rtllib_stop_scan(ieee);
|
|
if (ieee->state <= RTLLIB_ASSOCIATING_AUTHENTICATED)
|
ieee->state = RTLLIB_NOLINK;
|
|
if (ieee->state == RTLLIB_LINKED) {
|
if (ieee->iw_mode == IW_MODE_INFRA)
|
SendDisassociation(ieee, 1, WLAN_REASON_DEAUTH_LEAVING);
|
rtllib_disassociate(ieee);
|
}
|
|
if (shutdown) {
|
RemoveAllTS(ieee);
|
ieee->proto_stoppping = 0;
|
}
|
kfree(ieee->assocreq_ies);
|
ieee->assocreq_ies = NULL;
|
ieee->assocreq_ies_len = 0;
|
kfree(ieee->assocresp_ies);
|
ieee->assocresp_ies = NULL;
|
ieee->assocresp_ies_len = 0;
|
}
|
|
void rtllib_softmac_start_protocol(struct rtllib_device *ieee, u8 mesh_flag)
|
{
|
mutex_lock(&ieee->wx_mutex);
|
rtllib_start_protocol(ieee);
|
mutex_unlock(&ieee->wx_mutex);
|
}
|
EXPORT_SYMBOL(rtllib_softmac_start_protocol);
|
|
void rtllib_start_protocol(struct rtllib_device *ieee)
|
{
|
short ch = 0;
|
int i = 0;
|
|
rtllib_update_active_chan_map(ieee);
|
|
if (ieee->proto_started)
|
return;
|
|
ieee->proto_started = 1;
|
|
if (ieee->current_network.channel == 0) {
|
do {
|
ch++;
|
if (ch > MAX_CHANNEL_NUMBER)
|
return; /* no channel found */
|
} while (!ieee->active_channel_map[ch]);
|
ieee->current_network.channel = ch;
|
}
|
|
if (ieee->current_network.beacon_interval == 0)
|
ieee->current_network.beacon_interval = 100;
|
|
for (i = 0; i < 17; i++) {
|
ieee->last_rxseq_num[i] = -1;
|
ieee->last_rxfrag_num[i] = -1;
|
ieee->last_packet_time[i] = 0;
|
}
|
|
if (ieee->UpdateBeaconInterruptHandler)
|
ieee->UpdateBeaconInterruptHandler(ieee->dev, false);
|
|
ieee->wmm_acm = 0;
|
/* if the user set the MAC of the ad-hoc cell and then
|
* switch to managed mode, shall we make sure that association
|
* attempts does not fail just because the user provide the essid
|
* and the nic is still checking for the AP MAC ??
|
*/
|
if (ieee->iw_mode == IW_MODE_INFRA) {
|
rtllib_start_bss(ieee);
|
} else if (ieee->iw_mode == IW_MODE_ADHOC) {
|
if (ieee->UpdateBeaconInterruptHandler)
|
ieee->UpdateBeaconInterruptHandler(ieee->dev, true);
|
|
rtllib_start_ibss(ieee);
|
|
} else if (ieee->iw_mode == IW_MODE_MASTER) {
|
rtllib_start_master_bss(ieee);
|
} else if (ieee->iw_mode == IW_MODE_MONITOR) {
|
rtllib_start_monitor_mode(ieee);
|
}
|
}
|
|
int rtllib_softmac_init(struct rtllib_device *ieee)
|
{
|
int i;
|
|
memset(&ieee->current_network, 0, sizeof(struct rtllib_network));
|
|
ieee->state = RTLLIB_NOLINK;
|
for (i = 0; i < 5; i++)
|
ieee->seq_ctrl[i] = 0;
|
ieee->dot11d_info = kzalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
|
if (!ieee->dot11d_info)
|
return -ENOMEM;
|
|
ieee->LinkDetectInfo.SlotIndex = 0;
|
ieee->LinkDetectInfo.SlotNum = 2;
|
ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
|
ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
|
ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
|
ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
|
ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
|
ieee->bIsAggregateFrame = false;
|
ieee->assoc_id = 0;
|
ieee->queue_stop = 0;
|
ieee->scanning_continue = 0;
|
ieee->softmac_features = 0;
|
ieee->wap_set = 0;
|
ieee->ssid_set = 0;
|
ieee->proto_started = 0;
|
ieee->proto_stoppping = 0;
|
ieee->basic_rate = RTLLIB_DEFAULT_BASIC_RATE;
|
ieee->rate = 22;
|
ieee->ps = RTLLIB_PS_DISABLED;
|
ieee->sta_sleep = LPS_IS_WAKE;
|
|
ieee->Regdot11HTOperationalRateSet[0] = 0xff;
|
ieee->Regdot11HTOperationalRateSet[1] = 0xff;
|
ieee->Regdot11HTOperationalRateSet[4] = 0x01;
|
|
ieee->Regdot11TxHTOperationalRateSet[0] = 0xff;
|
ieee->Regdot11TxHTOperationalRateSet[1] = 0xff;
|
ieee->Regdot11TxHTOperationalRateSet[4] = 0x01;
|
|
ieee->FirstIe_InScan = false;
|
ieee->actscanning = false;
|
ieee->beinretry = false;
|
ieee->is_set_key = false;
|
init_mgmt_queue(ieee);
|
|
ieee->tx_pending.txb = NULL;
|
|
timer_setup(&ieee->associate_timer, rtllib_associate_abort_cb, 0);
|
|
timer_setup(&ieee->beacon_timer, rtllib_send_beacon_cb, 0);
|
|
INIT_DELAYED_WORK_RSL(&ieee->link_change_wq,
|
(void *)rtllib_link_change_wq, ieee);
|
INIT_DELAYED_WORK_RSL(&ieee->start_ibss_wq,
|
(void *)rtllib_start_ibss_wq, ieee);
|
INIT_WORK_RSL(&ieee->associate_complete_wq,
|
(void *)rtllib_associate_complete_wq, ieee);
|
INIT_DELAYED_WORK_RSL(&ieee->associate_procedure_wq,
|
(void *)rtllib_associate_procedure_wq, ieee);
|
INIT_DELAYED_WORK_RSL(&ieee->softmac_scan_wq,
|
(void *)rtllib_softmac_scan_wq, ieee);
|
INIT_DELAYED_WORK_RSL(&ieee->associate_retry_wq,
|
(void *)rtllib_associate_retry_wq, ieee);
|
INIT_WORK_RSL(&ieee->wx_sync_scan_wq, (void *)rtllib_wx_sync_scan_wq,
|
ieee);
|
|
mutex_init(&ieee->wx_mutex);
|
mutex_init(&ieee->scan_mutex);
|
mutex_init(&ieee->ips_mutex);
|
|
spin_lock_init(&ieee->mgmt_tx_lock);
|
spin_lock_init(&ieee->beacon_lock);
|
|
tasklet_setup(&ieee->ps_task, rtllib_sta_ps);
|
|
return 0;
|
}
|
|
void rtllib_softmac_free(struct rtllib_device *ieee)
|
{
|
mutex_lock(&ieee->wx_mutex);
|
kfree(ieee->dot11d_info);
|
ieee->dot11d_info = NULL;
|
del_timer_sync(&ieee->associate_timer);
|
|
cancel_delayed_work_sync(&ieee->associate_retry_wq);
|
cancel_delayed_work_sync(&ieee->associate_procedure_wq);
|
cancel_delayed_work_sync(&ieee->softmac_scan_wq);
|
cancel_delayed_work_sync(&ieee->start_ibss_wq);
|
cancel_delayed_work_sync(&ieee->hw_wakeup_wq);
|
cancel_delayed_work_sync(&ieee->hw_sleep_wq);
|
cancel_delayed_work_sync(&ieee->link_change_wq);
|
cancel_work_sync(&ieee->associate_complete_wq);
|
cancel_work_sync(&ieee->ips_leave_wq);
|
cancel_work_sync(&ieee->wx_sync_scan_wq);
|
mutex_unlock(&ieee->wx_mutex);
|
tasklet_kill(&ieee->ps_task);
|
}
|
|
static inline struct sk_buff *
|
rtllib_disauth_skb(struct rtllib_network *beacon,
|
struct rtllib_device *ieee, u16 asRsn)
|
{
|
struct sk_buff *skb;
|
struct rtllib_disauth *disauth;
|
int len = sizeof(struct rtllib_disauth) + ieee->tx_headroom;
|
|
skb = dev_alloc_skb(len);
|
if (!skb)
|
return NULL;
|
|
skb_reserve(skb, ieee->tx_headroom);
|
|
disauth = skb_put(skb, sizeof(struct rtllib_disauth));
|
disauth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DEAUTH);
|
disauth->header.duration_id = 0;
|
|
ether_addr_copy(disauth->header.addr1, beacon->bssid);
|
ether_addr_copy(disauth->header.addr2, ieee->dev->dev_addr);
|
ether_addr_copy(disauth->header.addr3, beacon->bssid);
|
|
disauth->reason = cpu_to_le16(asRsn);
|
return skb;
|
}
|
|
static inline struct sk_buff *
|
rtllib_disassociate_skb(struct rtllib_network *beacon,
|
struct rtllib_device *ieee, u16 asRsn)
|
{
|
struct sk_buff *skb;
|
struct rtllib_disassoc *disass;
|
int len = sizeof(struct rtllib_disassoc) + ieee->tx_headroom;
|
|
skb = dev_alloc_skb(len);
|
|
if (!skb)
|
return NULL;
|
|
skb_reserve(skb, ieee->tx_headroom);
|
|
disass = skb_put(skb, sizeof(struct rtllib_disassoc));
|
disass->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DISASSOC);
|
disass->header.duration_id = 0;
|
|
ether_addr_copy(disass->header.addr1, beacon->bssid);
|
ether_addr_copy(disass->header.addr2, ieee->dev->dev_addr);
|
ether_addr_copy(disass->header.addr3, beacon->bssid);
|
|
disass->reason = cpu_to_le16(asRsn);
|
return skb;
|
}
|
|
void SendDisassociation(struct rtllib_device *ieee, bool deauth, u16 asRsn)
|
{
|
struct rtllib_network *beacon = &ieee->current_network;
|
struct sk_buff *skb;
|
|
if (deauth)
|
skb = rtllib_disauth_skb(beacon, ieee, asRsn);
|
else
|
skb = rtllib_disassociate_skb(beacon, ieee, asRsn);
|
|
if (skb)
|
softmac_mgmt_xmit(skb, ieee);
|
}
|
|
u8 rtllib_ap_sec_type(struct rtllib_device *ieee)
|
{
|
static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
|
static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
|
int wpa_ie_len = ieee->wpa_ie_len;
|
struct lib80211_crypt_data *crypt;
|
int encrypt;
|
|
crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
|
encrypt = (ieee->current_network.capability & WLAN_CAPABILITY_PRIVACY)
|
|| (ieee->host_encrypt && crypt && crypt->ops &&
|
(strcmp(crypt->ops->name, "R-WEP") == 0));
|
|
/* simply judge */
|
if (encrypt && (wpa_ie_len == 0)) {
|
return SEC_ALG_WEP;
|
} else if ((wpa_ie_len != 0)) {
|
if (((ieee->wpa_ie[0] == 0xdd) &&
|
(!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) ||
|
((ieee->wpa_ie[0] == 0x30) &&
|
(!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4))))
|
return SEC_ALG_CCMP;
|
else
|
return SEC_ALG_TKIP;
|
} else {
|
return SEC_ALG_NONE;
|
}
|
}
|
|
static void rtllib_MgntDisconnectIBSS(struct rtllib_device *rtllib)
|
{
|
u8 OpMode;
|
u8 i;
|
bool bFilterOutNonAssociatedBSSID = false;
|
|
rtllib->state = RTLLIB_NOLINK;
|
|
for (i = 0; i < 6; i++)
|
rtllib->current_network.bssid[i] = 0x55;
|
|
rtllib->OpMode = RT_OP_MODE_NO_LINK;
|
rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
|
rtllib->current_network.bssid);
|
OpMode = RT_OP_MODE_NO_LINK;
|
rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS, &OpMode);
|
rtllib_stop_send_beacons(rtllib);
|
|
bFilterOutNonAssociatedBSSID = false;
|
rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
|
(u8 *)(&bFilterOutNonAssociatedBSSID));
|
notify_wx_assoc_event(rtllib);
|
|
}
|
|
static void rtllib_MlmeDisassociateRequest(struct rtllib_device *rtllib,
|
u8 *asSta, u8 asRsn)
|
{
|
u8 i;
|
u8 OpMode;
|
|
RemovePeerTS(rtllib, asSta);
|
|
if (memcmp(rtllib->current_network.bssid, asSta, 6) == 0) {
|
rtllib->state = RTLLIB_NOLINK;
|
|
for (i = 0; i < 6; i++)
|
rtllib->current_network.bssid[i] = 0x22;
|
OpMode = RT_OP_MODE_NO_LINK;
|
rtllib->OpMode = RT_OP_MODE_NO_LINK;
|
rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS,
|
(u8 *)(&OpMode));
|
rtllib_disassociate(rtllib);
|
|
rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
|
rtllib->current_network.bssid);
|
|
}
|
|
}
|
|
static void
|
rtllib_MgntDisconnectAP(
|
struct rtllib_device *rtllib,
|
u8 asRsn
|
)
|
{
|
bool bFilterOutNonAssociatedBSSID = false;
|
|
bFilterOutNonAssociatedBSSID = false;
|
rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
|
(u8 *)(&bFilterOutNonAssociatedBSSID));
|
rtllib_MlmeDisassociateRequest(rtllib, rtllib->current_network.bssid,
|
asRsn);
|
|
rtllib->state = RTLLIB_NOLINK;
|
}
|
|
bool rtllib_MgntDisconnect(struct rtllib_device *rtllib, u8 asRsn)
|
{
|
if (rtllib->ps != RTLLIB_PS_DISABLED)
|
rtllib->sta_wake_up(rtllib->dev);
|
|
if (rtllib->state == RTLLIB_LINKED) {
|
if (rtllib->iw_mode == IW_MODE_ADHOC)
|
rtllib_MgntDisconnectIBSS(rtllib);
|
if (rtllib->iw_mode == IW_MODE_INFRA)
|
rtllib_MgntDisconnectAP(rtllib, asRsn);
|
|
}
|
|
return true;
|
}
|
EXPORT_SYMBOL(rtllib_MgntDisconnect);
|
|
void notify_wx_assoc_event(struct rtllib_device *ieee)
|
{
|
union iwreq_data wrqu;
|
|
if (ieee->cannot_notify)
|
return;
|
|
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
|
if (ieee->state == RTLLIB_LINKED)
|
memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid,
|
ETH_ALEN);
|
else {
|
|
netdev_info(ieee->dev, "%s(): Tell user space disconnected\n",
|
__func__);
|
eth_zero_addr(wrqu.ap_addr.sa_data);
|
}
|
wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
|
}
|
EXPORT_SYMBOL(notify_wx_assoc_event);
|
