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linux / linux / kernel / git / klassert / ipsec / refs/tags/v3.6 / . / drivers / staging / rtl8187se / ieee80211 / ieee80211_softmac.c
blob: 8173240dcf7ae6d184081d3e9a191ab4ce3994bd [file] [log] [blame]
/* IEEE 802.11 SoftMAC layer
* Copyright (c) 2005 Andrea Merello <andreamrl@tiscali.it>
*
* Mostly extracted from the rtl8180-sa2400 driver for the
* in-kernel generic ieee802.11 stack.
*
* Few lines might be stolen from other part of the ieee80211
* stack. Copyright who own it's copyright
*
* WPA code stolen from the ipw2200 driver.
* Copyright who own it's copyright.
*
* released under the GPL
*/
#include "ieee80211.h"
#include <linux/random.h>
#include <linux/delay.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <asm/uaccess.h>
#include "dot11d.h"
u8 rsn_authen_cipher_suite[16][4] = {
{0x00,0x0F,0xAC,0x00}, //Use group key, //Reserved
{0x00,0x0F,0xAC,0x01}, //WEP-40 //RSNA default
{0x00,0x0F,0xAC,0x02}, //TKIP //NONE //{used just as default}
{0x00,0x0F,0xAC,0x03}, //WRAP-historical
{0x00,0x0F,0xAC,0x04}, //CCMP
{0x00,0x0F,0xAC,0x05}, //WEP-104
};
short ieee80211_is_54g(const struct ieee80211_network *net)
{
return (net->rates_ex_len > 0) || (net->rates_len > 4);
}
short ieee80211_is_shortslot(const struct ieee80211_network *net)
{
return net->capability & WLAN_CAPABILITY_SHORT_SLOT;
}
/* returns the total length needed for placing the RATE MFIE
* tag and the EXTENDED RATE MFIE tag if needed.
* It encludes two bytes per tag for the tag itself and its len
*/
unsigned int ieee80211_MFIE_rate_len(struct ieee80211_device *ieee)
{
unsigned int rate_len = 0;
if (ieee->modulation & IEEE80211_CCK_MODULATION)
rate_len = IEEE80211_CCK_RATE_LEN + 2;
if (ieee->modulation & IEEE80211_OFDM_MODULATION)
rate_len += IEEE80211_OFDM_RATE_LEN + 2;
return rate_len;
}
/* place the MFIE rate, tag to the memory (double) poised.
* Then it updates the pointer so that
* it points after the new MFIE tag added.
*/
void ieee80211_MFIE_Brate(struct ieee80211_device *ieee, u8 **tag_p)
{
u8 *tag = *tag_p;
if (ieee->modulation & IEEE80211_CCK_MODULATION){
*tag++ = MFIE_TYPE_RATES;
*tag++ = 4;
*tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
*tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
*tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
*tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
}
/* We may add an option for custom rates that specific HW might support */
*tag_p = tag;
}
void ieee80211_MFIE_Grate(struct ieee80211_device *ieee, u8 **tag_p)
{
u8 *tag = *tag_p;
if (ieee->modulation & IEEE80211_OFDM_MODULATION){
*tag++ = MFIE_TYPE_RATES_EX;
*tag++ = 8;
*tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_6MB;
*tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_9MB;
*tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_12MB;
*tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_18MB;
*tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB;
*tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_36MB;
*tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_48MB;
*tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_54MB;
}
/* We may add an option for custom rates that specific HW might support */
*tag_p = tag;
}
void ieee80211_WMM_Info(struct ieee80211_device *ieee, u8 **tag_p) {
u8 *tag = *tag_p;
*tag++ = MFIE_TYPE_GENERIC; //0
*tag++ = 7;
*tag++ = 0x00;
*tag++ = 0x50;
*tag++ = 0xf2;
*tag++ = 0x02;//5
*tag++ = 0x00;
*tag++ = 0x01;
#ifdef SUPPORT_USPD
if(ieee->current_network.wmm_info & 0x80) {
*tag++ = 0x0f|MAX_SP_Len;
} else {
*tag++ = MAX_SP_Len;
}
#else
*tag++ = MAX_SP_Len;
#endif
*tag_p = tag;
}
void ieee80211_TURBO_Info(struct ieee80211_device *ieee, u8 **tag_p) {
u8 *tag = *tag_p;
*tag++ = MFIE_TYPE_GENERIC; //0
*tag++ = 7;
*tag++ = 0x00;
*tag++ = 0xe0;
*tag++ = 0x4c;
*tag++ = 0x01;//5
*tag++ = 0x02;
*tag++ = 0x11;
*tag++ = 0x00;
*tag_p = tag;
printk(KERN_ALERT "This is enable turbo mode IE process\n");
}
void enqueue_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb)
{
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;
//return 0;
}
struct sk_buff *dequeue_mgmt(struct ieee80211_device *ieee)
{
struct sk_buff *ret;
if(ieee->mgmt_queue_tail == ieee->mgmt_queue_head)
return NULL;
ret = ieee->mgmt_queue_ring[ieee->mgmt_queue_tail];
ieee->mgmt_queue_tail =
(ieee->mgmt_queue_tail+1) % MGMT_QUEUE_NUM;
return ret;
}
void init_mgmt_queue(struct ieee80211_device *ieee)
{
ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
}
void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl);
inline void softmac_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *ieee)
{
unsigned long flags;
short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
struct ieee80211_hdr_3addr *header=
(struct ieee80211_hdr_3addr *) skb->data;
spin_lock_irqsave(&ieee->lock, flags);
/* called with 2nd param 0, no mgmt lock required */
ieee80211_sta_wakeup(ieee,0);
if(single){
if(ieee->queue_stop){
enqueue_mgmt(ieee,skb);
}else{
header->seq_ctrl = 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->dev->trans_start = jiffies;
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_ctrl = 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->dev->trans_start = jiffies;
ieee->softmac_hard_start_xmit(skb,ieee->dev);
spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
}
}
inline void softmac_ps_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *ieee)
{
short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
struct ieee80211_hdr_3addr *header =
(struct ieee80211_hdr_3addr *) skb->data;
if(single){
header->seq_ctrl = 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->dev->trans_start = jiffies;
ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
}else{
header->seq_ctrl = 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->dev->trans_start = jiffies;
ieee->softmac_hard_start_xmit(skb,ieee->dev);
}
// dev_kfree_skb_any(skb);//edit by thomas
}
//by amy for power save
inline struct sk_buff *ieee80211_disassociate_skb(
struct ieee80211_network *beacon,
struct ieee80211_device *ieee,
u8 asRsn)
{
struct sk_buff *skb;
struct ieee80211_disassoc_frame *disass;
skb = dev_alloc_skb(sizeof(struct ieee80211_disassoc_frame));
if (!skb)
return NULL;
disass = (struct ieee80211_disassoc_frame *) skb_put(skb,sizeof(struct ieee80211_disassoc_frame));
disass->header.frame_control = cpu_to_le16(IEEE80211_STYPE_DISASSOC);
disass->header.duration_id = 0;
memcpy(disass->header.addr1, beacon->bssid, ETH_ALEN);
memcpy(disass->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
memcpy(disass->header.addr3, beacon->bssid, ETH_ALEN);
disass->reasoncode = asRsn;
return skb;
}
void
SendDisassociation(
struct ieee80211_device *ieee,
u8* asSta,
u8 asRsn
)
{
struct ieee80211_network *beacon = &ieee->current_network;
struct sk_buff *skb;
skb = ieee80211_disassociate_skb(beacon,ieee,asRsn);
if (skb){
softmac_mgmt_xmit(skb, ieee);
//dev_kfree_skb_any(skb);//edit by thomas
}
}
//by amy for power save
inline struct sk_buff *ieee80211_probe_req(struct ieee80211_device *ieee)
{
unsigned int len,rate_len;
u8 *tag;
struct sk_buff *skb;
struct ieee80211_probe_request *req;
len = ieee->current_network.ssid_len;
rate_len = ieee80211_MFIE_rate_len(ieee);
skb = dev_alloc_skb(sizeof(struct ieee80211_probe_request) +
2 + len + rate_len);
if (!skb)
return NULL;
req = (struct ieee80211_probe_request *) skb_put(skb,sizeof(struct ieee80211_probe_request));
req->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
req->header.duration_id = 0; //FIXME: is this OK ?
memset(req->header.addr1, 0xff, ETH_ALEN);
memcpy(req->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
memset(req->header.addr3, 0xff, ETH_ALEN);
tag = (u8 *) skb_put(skb,len+2+rate_len);
*tag++ = MFIE_TYPE_SSID;
*tag++ = len;
memcpy(tag, ieee->current_network.ssid, len);
tag += len;
ieee80211_MFIE_Brate(ieee,&tag);
ieee80211_MFIE_Grate(ieee,&tag);
return skb;
}
struct sk_buff *ieee80211_get_beacon_(struct ieee80211_device *ieee);
void ext_ieee80211_send_beacon_wq(struct ieee80211_device *ieee)
{
struct sk_buff *skb;
//unsigned long flags;
skb = ieee80211_get_beacon_(ieee);
if (skb){
softmac_mgmt_xmit(skb, ieee);
ieee->softmac_stats.tx_beacons++;
dev_kfree_skb_any(skb);//edit by thomas
}
//printk(KERN_WARNING "[1] beacon sending!\n");
ieee->beacon_timer.expires = jiffies +
(MSECS( ieee->current_network.beacon_interval -5));
//spin_lock_irqsave(&ieee->beacon_lock,flags);
if(ieee->beacon_txing)
add_timer(&ieee->beacon_timer);
//spin_unlock_irqrestore(&ieee->beacon_lock,flags);
}
void ieee80211_send_beacon(struct ieee80211_device *ieee)
{
struct sk_buff *skb;
//unsigned long flags;
skb = ieee80211_get_beacon_(ieee);
if (skb){
softmac_mgmt_xmit(skb, ieee);
ieee->softmac_stats.tx_beacons++;
dev_kfree_skb_any(skb);//edit by thomas
}
//printk(KERN_WARNING "[1] beacon sending!\n");
ieee->beacon_timer.expires = jiffies +
(MSECS( ieee->current_network.beacon_interval -5));
//spin_lock_irqsave(&ieee->beacon_lock,flags);
if(ieee->beacon_txing)
add_timer(&ieee->beacon_timer);
//spin_unlock_irqrestore(&ieee->beacon_lock,flags);
}
void ieee80211_send_beacon_cb(unsigned long _ieee)
{
struct ieee80211_device *ieee =
(struct ieee80211_device *) _ieee;
unsigned long flags;
spin_lock_irqsave(&ieee->beacon_lock, flags);
ieee80211_send_beacon(ieee);
spin_unlock_irqrestore(&ieee->beacon_lock, flags);
}
void ieee80211_send_probe(struct ieee80211_device *ieee)
{
struct sk_buff *skb;
skb = ieee80211_probe_req(ieee);
if (skb){
softmac_mgmt_xmit(skb, ieee);
ieee->softmac_stats.tx_probe_rq++;
//dev_kfree_skb_any(skb);//edit by thomas
}
}
void ieee80211_send_probe_requests(struct ieee80211_device *ieee)
{
if (ieee->active_scan && (ieee->softmac_features & IEEE_SOFTMAC_PROBERQ)){
ieee80211_send_probe(ieee);
ieee80211_send_probe(ieee);
}
}
/* this performs syncro scan blocking the caller until all channels
* in the allowed channel map has been checked.
*/
void ieee80211_softmac_scan_syncro(struct ieee80211_device *ieee)
{
short ch = 0;
u8 channel_map[MAX_CHANNEL_NUMBER+1];
memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
down(&ieee->scan_sem);
// printk("==================> Sync scan\n");
while(1)
{
do{
ch++;
if (ch > MAX_CHANNEL_NUMBER)
goto out; /* scan completed */
}while(!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
* IEEE80211_NOLINK until we found an interesting cell.
* If so the ieee8021_new_net, called by the RX path
* will set the state to IEEE80211_LINKED, so we stop
* scanning
* 2- We are linked and the root uses run iwlist scan.
* So we switch to IEEE80211_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 temporarily 'unlinked' as the driver shall
* not filter RX frames and the channel is changing.
* So the only situation in witch are interested is to check
* if the state become LINKED because of the #1 situation
*/
if (ieee->state == IEEE80211_LINKED)
goto out;
ieee->set_chan(ieee->dev, ch);
// printk("=====>channel=%d ",ch);
if(channel_map[ch] == 1)
{
// printk("====send probe request\n");
ieee80211_send_probe_requests(ieee);
}
/* this prevent excessive time wait when we
* need to wait for a syncro scan to end..
*/
if (ieee->sync_scan_hurryup)
goto out;
msleep_interruptible_rtl(IEEE80211_SOFTMAC_SCAN_TIME);
}
out:
ieee->sync_scan_hurryup = 0;
up(&ieee->scan_sem);
if(IS_DOT11D_ENABLE(ieee))
DOT11D_ScanComplete(ieee);
}
void ieee80211_softmac_ips_scan_syncro(struct ieee80211_device *ieee)
{
int ch;
unsigned int watch_dog = 0;
u8 channel_map[MAX_CHANNEL_NUMBER+1];
memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
down(&ieee->scan_sem);
ch = ieee->current_network.channel;
// if(ieee->sync_scan_hurryup)
// {
// printk("stop scan sync\n");
// goto out;
// }
// printk("=======hh===============>ips scan\n");
while(1)
{
/* 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
* IEEE80211_NOLINK until we found an interesting cell.
* If so the ieee8021_new_net, called by the RX path
* will set the state to IEEE80211_LINKED, so we stop
* scanning
* 2- We are linked and the root uses run iwlist scan.
* So we switch to IEEE80211_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 temporarily 'unlinked' as the driver shall
* not filter RX frames and the channel is changing.
* So the only situation in witch are interested is to check
* if the state become LINKED because of the #1 situation
*/
if (ieee->state == IEEE80211_LINKED)
{
goto out;
}
if(channel_map[ieee->current_network.channel] > 0)
{
ieee->set_chan(ieee->dev, ieee->current_network.channel);
// printk("======>channel=%d ",ieee->current_network.channel);
}
if(channel_map[ieee->current_network.channel] == 1)
{
// printk("====send probe request\n");
ieee80211_send_probe_requests(ieee);
}
/* this prevent excessive time wait when we
* need to wait for a syncro scan to end..
*/
// if (ieee->sync_scan_hurryup)
// goto out;
msleep_interruptible_rtl(IEEE80211_SOFTMAC_SCAN_TIME);
do{
if (watch_dog++ >= MAX_CHANNEL_NUMBER)
// if (++watch_dog >= 15);//MAX_CHANNEL_NUMBER) //YJ,modified,080630
goto out; /* scan completed */
ieee->current_network.channel = (ieee->current_network.channel + 1)%MAX_CHANNEL_NUMBER;
}while(!channel_map[ieee->current_network.channel]);
}
out:
//ieee->sync_scan_hurryup = 0;
//ieee->set_chan(ieee->dev, ch);
//ieee->current_network.channel = ch;
ieee->actscanning = false;
up(&ieee->scan_sem);
if(IS_DOT11D_ENABLE(ieee))
DOT11D_ScanComplete(ieee);
}
void ieee80211_softmac_scan_wq(struct work_struct *work)
{
struct delayed_work *dwork = to_delayed_work(work);
struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, softmac_scan_wq);
static short watchdog = 0;
u8 channel_map[MAX_CHANNEL_NUMBER+1];
memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
// printk("ieee80211_softmac_scan_wq ENABLE_IPS\n");
// printk("in %s\n",__func__);
down(&ieee->scan_sem);
do{
ieee->current_network.channel =
(ieee->current_network.channel + 1) % MAX_CHANNEL_NUMBER;
if (watchdog++ > MAX_CHANNEL_NUMBER)
goto out; /* no good chans */
}while(!channel_map[ieee->current_network.channel]);
//printk("current_network.channel:%d\n", ieee->current_network.channel);
if (ieee->scanning == 0 )
{
printk("error out, scanning = 0\n");
goto out;
}
ieee->set_chan(ieee->dev, ieee->current_network.channel);
if(channel_map[ieee->current_network.channel] == 1)
ieee80211_send_probe_requests(ieee);
queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq, IEEE80211_SOFTMAC_SCAN_TIME);
up(&ieee->scan_sem);
return;
out:
ieee->actscanning = false;
watchdog = 0;
ieee->scanning = 0;
up(&ieee->scan_sem);
if(IS_DOT11D_ENABLE(ieee))
DOT11D_ScanComplete(ieee);
return;
}
void ieee80211_beacons_start(struct ieee80211_device *ieee)
{
unsigned long flags;
spin_lock_irqsave(&ieee->beacon_lock,flags);
ieee->beacon_txing = 1;
ieee80211_send_beacon(ieee);
spin_unlock_irqrestore(&ieee->beacon_lock,flags);
}
void ieee80211_beacons_stop(struct ieee80211_device *ieee)
{
unsigned long flags;
spin_lock_irqsave(&ieee->beacon_lock,flags);
ieee->beacon_txing = 0;
del_timer_sync(&ieee->beacon_timer);
spin_unlock_irqrestore(&ieee->beacon_lock,flags);
}
void ieee80211_stop_send_beacons(struct ieee80211_device *ieee)
{
if(ieee->stop_send_beacons)
ieee->stop_send_beacons(ieee->dev);
if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
ieee80211_beacons_stop(ieee);
}
void ieee80211_start_send_beacons(struct ieee80211_device *ieee)
{
if(ieee->start_send_beacons)
ieee->start_send_beacons(ieee->dev);
if(ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
ieee80211_beacons_start(ieee);
}
void ieee80211_softmac_stop_scan(struct ieee80211_device *ieee)
{
// unsigned long flags;
//ieee->sync_scan_hurryup = 1;
down(&ieee->scan_sem);
// spin_lock_irqsave(&ieee->lock, flags);
if (ieee->scanning == 1){
ieee->scanning = 0;
//del_timer_sync(&ieee->scan_timer);
cancel_delayed_work(&ieee->softmac_scan_wq);
}
// spin_unlock_irqrestore(&ieee->lock, flags);
up(&ieee->scan_sem);
}
void ieee80211_stop_scan(struct ieee80211_device *ieee)
{
if (ieee->softmac_features & IEEE_SOFTMAC_SCAN)
ieee80211_softmac_stop_scan(ieee);
else
ieee->stop_scan(ieee->dev);
}
/* called with ieee->lock held */
void ieee80211_rtl_start_scan(struct ieee80211_device *ieee)
{
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 == 0)
{
ieee->scanning = 1;
//ieee80211_softmac_scan(ieee);
// queue_work(ieee->wq, &ieee->softmac_scan_wq);
//care this,1203,2007,by lawrence
#if 1
queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq,0);
#endif
}
}else
ieee->start_scan(ieee->dev);
}
/* called with wx_sem held */
void ieee80211_start_scan_syncro(struct ieee80211_device *ieee)
{
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)
ieee80211_softmac_scan_syncro(ieee);
else
ieee->scan_syncro(ieee->dev);
}
inline struct sk_buff *ieee80211_authentication_req(struct ieee80211_network *beacon,
struct ieee80211_device *ieee, int challengelen)
{
struct sk_buff *skb;
struct ieee80211_authentication *auth;
skb = dev_alloc_skb(sizeof(struct ieee80211_authentication) + challengelen);
if (!skb) return NULL;
auth = (struct ieee80211_authentication *)
skb_put(skb, sizeof(struct ieee80211_authentication));
auth->header.frame_ctl = IEEE80211_STYPE_AUTH;
if (challengelen) auth->header.frame_ctl |= IEEE80211_FCTL_WEP;
auth->header.duration_id = 0x013a; //FIXME
memcpy(auth->header.addr1, beacon->bssid, ETH_ALEN);
memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
memcpy(auth->header.addr3, beacon->bssid, ETH_ALEN);
auth->algorithm = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
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* ieee80211_probe_resp(struct ieee80211_device *ieee, u8 *dest)
{
u8 *tag;
int beacon_size;
struct ieee80211_probe_response *beacon_buf;
struct sk_buff *skb;
int encrypt;
int atim_len,erp_len;
struct ieee80211_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;
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(ieee80211_is_54g(&ieee->current_network))
erp_len = 3;
else
erp_len = 0;
beacon_size = sizeof(struct ieee80211_probe_response)+
ssid_len
+3 //channel
+rate_len
+rate_ex_len
+atim_len
+wpa_ie_len
+erp_len;
skb = dev_alloc_skb(beacon_size);
if (!skb)
return NULL;
beacon_buf = (struct ieee80211_probe_response*) skb_put(skb, beacon_size);
memcpy (beacon_buf->header.addr1, dest,ETH_ALEN);
memcpy (beacon_buf->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
memcpy (beacon_buf->header.addr3, ieee->current_network.bssid, ETH_ALEN);
beacon_buf->header.duration_id = 0; //FIXME
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);
if(ieee->short_slot && (ieee->current_network.capability & WLAN_CAPABILITY_SHORT_SLOT))
beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT);
crypt = ieee->crypt[ieee->tx_keyidx];
encrypt = ieee->host_encrypt && crypt && crypt->ops &&
((0 == strcmp(crypt->ops->name, "WEP")) || wpa_ie_len);
if (encrypt)
beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
beacon_buf->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_RESP);
beacon_buf->info_element.id = MFIE_TYPE_SSID;
beacon_buf->info_element.len = ssid_len;
tag = (u8*) beacon_buf->info_element.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){
*(tag++) = MFIE_TYPE_IBSS_SET;
*(tag++) = 2;
*((u16*)(tag)) = cpu_to_le16(ieee->current_network.atim_window);
tag+=2;
}
if(erp_len){
*(tag++) = MFIE_TYPE_ERP;
*(tag++) = 1;
*(tag++) = 0;
}
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)
{//as Windows will set pairwise key same as the group key which is not allowed in Linux, so set this for IOT issue. WB 2008.07.07
memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
}
memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
}
skb->dev = ieee->dev;
return skb;
}
struct sk_buff* ieee80211_assoc_resp(struct ieee80211_device *ieee, u8 *dest)
{
struct sk_buff *skb;
u8* tag;
struct ieee80211_crypt_data* crypt;
struct ieee80211_assoc_response_frame *assoc;
short encrypt;
unsigned int rate_len = ieee80211_MFIE_rate_len(ieee);
int len = sizeof(struct ieee80211_assoc_response_frame) + rate_len;
skb = dev_alloc_skb(len);
if (!skb)
return NULL;
assoc = (struct ieee80211_assoc_response_frame *)
skb_put(skb,sizeof(struct ieee80211_assoc_response_frame));
assoc->header.frame_control = cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP);
memcpy(assoc->header.addr1, dest,ETH_ALEN);
memcpy(assoc->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
memcpy(assoc->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
WLAN_CAPABILITY_BSS : WLAN_CAPABILITY_IBSS);
if(ieee->short_slot)
assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT);
if (ieee->host_encrypt)
crypt = ieee->crypt[ieee->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 = (u8*) skb_put(skb, rate_len);
ieee80211_MFIE_Brate(ieee, &tag);
ieee80211_MFIE_Grate(ieee, &tag);
return skb;
}
struct sk_buff* ieee80211_auth_resp(struct ieee80211_device *ieee,int status, u8 *dest)
{
struct sk_buff *skb;
struct ieee80211_authentication *auth;
skb = dev_alloc_skb(sizeof(struct ieee80211_authentication)+1);
if (!skb)
return NULL;
skb->len = sizeof(struct ieee80211_authentication);
auth = (struct ieee80211_authentication *)skb->data;
auth->status = cpu_to_le16(status);
auth->transaction = cpu_to_le16(2);
auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);
memcpy(auth->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
memcpy(auth->header.addr1, dest, ETH_ALEN);
auth->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_AUTH);
return skb;
}
struct sk_buff* ieee80211_null_func(struct ieee80211_device *ieee,short pwr)
{
struct sk_buff *skb;
struct ieee80211_hdr_3addr* hdr;
skb = dev_alloc_skb(sizeof(struct ieee80211_hdr_3addr));
if (!skb)
return NULL;
hdr = (struct ieee80211_hdr_3addr*)skb_put(skb,sizeof(struct ieee80211_hdr_3addr));
memcpy(hdr->addr1, ieee->current_network.bssid, ETH_ALEN);
memcpy(hdr->addr2, ieee->dev->dev_addr, ETH_ALEN);
memcpy(hdr->addr3, ieee->current_network.bssid, ETH_ALEN);
hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
IEEE80211_STYPE_NULLFUNC | IEEE80211_FCTL_TODS |
(pwr ? IEEE80211_FCTL_PM:0));
return skb;
}
void ieee80211_resp_to_assoc_rq(struct ieee80211_device *ieee, u8* dest)
{
struct sk_buff *buf = ieee80211_assoc_resp(ieee, dest);
if (buf){
softmac_mgmt_xmit(buf, ieee);
dev_kfree_skb_any(buf);//edit by thomas
}
}
void ieee80211_resp_to_auth(struct ieee80211_device *ieee, int s, u8* dest)
{
struct sk_buff *buf = ieee80211_auth_resp(ieee, s, dest);
if (buf){
softmac_mgmt_xmit(buf, ieee);
dev_kfree_skb_any(buf);//edit by thomas
}
}
void ieee80211_resp_to_probe(struct ieee80211_device *ieee, u8 *dest)
{
struct sk_buff *buf = ieee80211_probe_resp(ieee, dest);
if (buf) {
softmac_mgmt_xmit(buf, ieee);
dev_kfree_skb_any(buf);//edit by thomas
}
}
inline struct sk_buff *ieee80211_association_req(struct ieee80211_network *beacon,struct ieee80211_device *ieee)
{
struct sk_buff *skb;
//unsigned long flags;
struct ieee80211_assoc_request_frame *hdr;
u8 *tag;
//short info_addr = 0;
//int i;
//u16 suite_count = 0;
//u8 suit_select = 0;
unsigned int wpa_len = beacon->wpa_ie_len;
//struct net_device *dev = ieee->dev;
//union iwreq_data wrqu;
//u8 *buff;
//u8 *p;
#if 1
// for testing purpose
unsigned int rsn_len = beacon->rsn_ie_len;
#else
unsigned int rsn_len = beacon->rsn_ie_len - 4;
#endif
unsigned int rate_len = ieee80211_MFIE_rate_len(ieee);
unsigned int wmm_info_len = beacon->QoS_Enable?9:0;
unsigned int turbo_info_len = beacon->Turbo_Enable?9:0;
u8 encry_proto = ieee->wpax_type_notify & 0xff;
//u8 pairwise_type = (ieee->wpax_type_notify >> 8) & 0xff;
//u8 authen_type = (ieee->wpax_type_notify >> 16) & 0xff;
int len = 0;
//[0] Notify type of encryption: WPA/WPA2
//[1] pair wise type
//[2] authen type
if(ieee->wpax_type_set) {
if (IEEE_PROTO_WPA == encry_proto) {
rsn_len = 0;
} else if (IEEE_PROTO_RSN == encry_proto) {
wpa_len = 0;
}
}
len = sizeof(struct ieee80211_assoc_request_frame)+
+ beacon->ssid_len//essid tagged val
+ rate_len//rates tagged val
+ wpa_len
+ rsn_len
+ wmm_info_len
+ turbo_info_len;
skb = dev_alloc_skb(len);
if (!skb)
return NULL;
hdr = (struct ieee80211_assoc_request_frame *)
skb_put(skb, sizeof(struct ieee80211_assoc_request_frame));
hdr->header.frame_control = IEEE80211_STYPE_ASSOC_REQ;
hdr->header.duration_id= 37; //FIXME
memcpy(hdr->header.addr1, beacon->bssid, ETH_ALEN);
memcpy(hdr->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
memcpy(hdr->header.addr3, beacon->bssid, ETH_ALEN);
memcpy(ieee->ap_mac_addr, beacon->bssid, ETH_ALEN);//for HW security, John
hdr->capability = cpu_to_le16(WLAN_CAPABILITY_BSS);
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)
hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT);
hdr->listen_interval = 0xa; //FIXME
hdr->info_element.id = MFIE_TYPE_SSID;
hdr->info_element.len = beacon->ssid_len;
tag = skb_put(skb, beacon->ssid_len);
memcpy(tag, beacon->ssid, beacon->ssid_len);
tag = skb_put(skb, rate_len);
ieee80211_MFIE_Brate(ieee, &tag);
ieee80211_MFIE_Grate(ieee, &tag);
//add rsn==0 condition for ap's mix security mode(wpa+wpa2), john2007.8.9
//choose AES encryption as default algorithm while using mixed mode
tag = skb_put(skb,ieee->wpa_ie_len);
memcpy(tag,ieee->wpa_ie,ieee->wpa_ie_len);
tag = skb_put(skb,wmm_info_len);
if(wmm_info_len) {
ieee80211_WMM_Info(ieee, &tag);
}
tag = skb_put(skb,turbo_info_len);
if(turbo_info_len) {
ieee80211_TURBO_Info(ieee, &tag);
}
return skb;
}
void ieee80211_associate_abort(struct ieee80211_device *ieee)
{
unsigned long flags;
spin_lock_irqsave(&ieee->lock, flags);
ieee->associate_seq++;
/* don't scan, and avoid to have the RX path possibly
* 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 == IEEE80211_ASSOCIATING_AUTHENTICATING){
IEEE80211_DEBUG_MGMT("Authentication failed\n");
ieee->softmac_stats.no_auth_rs++;
}else{
IEEE80211_DEBUG_MGMT("Association failed\n");
ieee->softmac_stats.no_ass_rs++;
}
ieee->state = IEEE80211_ASSOCIATING_RETRY;
queue_delayed_work(ieee->wq, &ieee->associate_retry_wq,IEEE80211_SOFTMAC_ASSOC_RETRY_TIME);
spin_unlock_irqrestore(&ieee->lock, flags);
}
void ieee80211_associate_abort_cb(unsigned long dev)
{
ieee80211_associate_abort((struct ieee80211_device *) dev);
}
void ieee80211_associate_step1(struct ieee80211_device *ieee)
{
struct ieee80211_network *beacon = &ieee->current_network;
struct sk_buff *skb;
IEEE80211_DEBUG_MGMT("Stopping scan\n");
ieee->softmac_stats.tx_auth_rq++;
skb=ieee80211_authentication_req(beacon, ieee, 0);
if (!skb){
ieee80211_associate_abort(ieee);
}
else{
ieee->state = IEEE80211_ASSOCIATING_AUTHENTICATING ;
IEEE80211_DEBUG_MGMT("Sending authentication request\n");
//printk("---Sending authentication request\n");
softmac_mgmt_xmit(skb, ieee);
//BUGON when you try to add_timer twice, using mod_timer may be better, john0709
if(!timer_pending(&ieee->associate_timer)){
ieee->associate_timer.expires = jiffies + (HZ / 2);
add_timer(&ieee->associate_timer);
}
//If call dev_kfree_skb_any,a warning will ocur....
//KERNEL: assertion (!atomic_read(&skb->users)) failed at net/core/dev.c (1708)
//So ... 1204 by lawrence.
//printk("\nIn %s,line %d call kfree skb.",__func__,__LINE__);
//dev_kfree_skb_any(skb);//edit by thomas
}
}
void ieee80211_rtl_auth_challenge(struct ieee80211_device *ieee, u8 *challenge, int chlen)
{
u8 *c;
struct sk_buff *skb;
struct ieee80211_network *beacon = &ieee->current_network;
// int hlen = sizeof(struct ieee80211_authentication);
del_timer_sync(&ieee->associate_timer);
ieee->associate_seq++;
ieee->softmac_stats.tx_auth_rq++;
skb = ieee80211_authentication_req(beacon, ieee, chlen+2);
if (!skb)
ieee80211_associate_abort(ieee);
else{
c = skb_put(skb, chlen+2);
*(c++) = MFIE_TYPE_CHALLENGE;
*(c++) = chlen;
memcpy(c, challenge, chlen);
IEEE80211_DEBUG_MGMT("Sending authentication challenge response\n");
ieee80211_encrypt_fragment(ieee, skb, sizeof(struct ieee80211_hdr_3addr ));
softmac_mgmt_xmit(skb, ieee);
if (!timer_pending(&ieee->associate_timer)){
//printk("=========>add timer again, to crash\n");
ieee->associate_timer.expires = jiffies + (HZ / 2);
add_timer(&ieee->associate_timer);
}
dev_kfree_skb_any(skb);//edit by thomas
}
kfree(challenge);
}
void ieee80211_associate_step2(struct ieee80211_device *ieee)
{
struct sk_buff* skb;
struct ieee80211_network *beacon = &ieee->current_network;
del_timer_sync(&ieee->associate_timer);
IEEE80211_DEBUG_MGMT("Sending association request\n");
ieee->softmac_stats.tx_ass_rq++;
skb=ieee80211_association_req(beacon, ieee);
if (!skb)
ieee80211_associate_abort(ieee);
else{
softmac_mgmt_xmit(skb, ieee);
if (!timer_pending(&ieee->associate_timer)){
ieee->associate_timer.expires = jiffies + (HZ / 2);
add_timer(&ieee->associate_timer);
}
//dev_kfree_skb_any(skb);//edit by thomas
}
}
void ieee80211_associate_complete_wq(struct work_struct *work)
{
struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, associate_complete_wq);
printk(KERN_INFO "Associated successfully\n");
if(ieee80211_is_54g(&ieee->current_network) &&
(ieee->modulation & IEEE80211_OFDM_MODULATION)){
ieee->rate = 540;
printk(KERN_INFO"Using G rates\n");
}else{
ieee->rate = 110;
printk(KERN_INFO"Using B rates\n");
}
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);
}
void ieee80211_associate_complete(struct ieee80211_device *ieee)
{
int i;
del_timer_sync(&ieee->associate_timer);
for(i = 0; i < 6; i++) {
//ieee->seq_ctrl[i] = 0;
}
ieee->state = IEEE80211_LINKED;
IEEE80211_DEBUG_MGMT("Successfully associated\n");
queue_work(ieee->wq, &ieee->associate_complete_wq);
}
void ieee80211_associate_procedure_wq(struct work_struct *work)
{
struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, associate_procedure_wq);
ieee->sync_scan_hurryup = 1;
down(&ieee->wx_sem);
if (ieee->data_hard_stop)
ieee->data_hard_stop(ieee->dev);
ieee80211_stop_scan(ieee);
ieee->set_chan(ieee->dev, ieee->current_network.channel);
ieee->associate_seq = 1;
ieee80211_associate_step1(ieee);
up(&ieee->wx_sem);
}
inline void ieee80211_softmac_new_net(struct ieee80211_device *ieee, struct ieee80211_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 != IEEE80211_NOLINK)
return;
if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability & WLAN_CAPABILITY_BSS))
return;
if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability & WLAN_CAPABILITY_IBSS))
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;//(memcmp(ieee->current_network.bssid, zero,ETH_ALEN)!=0 );
ssidset = ieee->ssid_set;//ieee->current_network.ssid[0] != '\0';
ssidbroad = !(net->ssid_len == 0 || net->ssid[0]== '\0');
apmatch = (memcmp(ieee->current_network.bssid, net->bssid, ETH_ALEN)==0);
if(ieee->current_network.ssid_len != net->ssid_len)
ssidmatch = 0;
else
ssidmatch = (0==strncmp(ieee->current_network.ssid, net->ssid, net->ssid_len));
//printk("cur: %s, %d, net:%s, %d\n", ieee->current_network.ssid, ieee->current_network.ssid_len, net->ssid, net->ssid_len);
//printk("apset=%d apmatch=%d ssidset=%d ssidbroad=%d ssidmatch=%d\n",apset,apmatch,ssidset,ssidbroad,ssidmatch);
if ( /* 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 chech if essid match
*/
( apset && apmatch &&
((ssidset && ssidbroad && ssidmatch) || (ssidbroad && !ssidset) || (!ssidbroad && ssidset)) ) ||
/* if the ap is not set, check that the user set the bssid
* and the network does broadcast and that those two bssid matches
*/
(!apset && ssidset && ssidbroad && ssidmatch)
){
/* if the essid is hidden replace it with the
* essid provided by the user.
*/
if (!ssidbroad){
strncpy(tmp_ssid, ieee->current_network.ssid, IW_ESSID_MAX_SIZE);
tmp_ssid_len = ieee->current_network.ssid_len;
}
memcpy(&ieee->current_network, net, sizeof(struct ieee80211_network));
if (!ssidbroad){
strncpy(ieee->current_network.ssid, tmp_ssid, IW_ESSID_MAX_SIZE);
ieee->current_network.ssid_len = tmp_ssid_len;
}
printk(KERN_INFO"Linking with %s: channel is %d\n",ieee->current_network.ssid,ieee->current_network.channel);
if (ieee->iw_mode == IW_MODE_INFRA){
ieee->state = IEEE80211_ASSOCIATING;
ieee->beinretry = false;
queue_work(ieee->wq, &ieee->associate_procedure_wq);
}else{
if(ieee80211_is_54g(&ieee->current_network) &&
(ieee->modulation & IEEE80211_OFDM_MODULATION)){
ieee->rate = 540;
printk(KERN_INFO"Using G rates\n");
}else{
ieee->rate = 110;
printk(KERN_INFO"Using B rates\n");
}
ieee->state = IEEE80211_LINKED;
ieee->beinretry = false;
}
}
}
}
void ieee80211_softmac_check_all_nets(struct ieee80211_device *ieee)
{
unsigned long flags;
struct ieee80211_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 != IEEE80211_NOLINK)
break;
if (ieee->scan_age == 0 || time_after(target->last_scanned + ieee->scan_age, jiffies))
ieee80211_softmac_new_net(ieee, target);
}
spin_unlock_irqrestore(&ieee->lock, flags);
}
static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
{
struct ieee80211_authentication *a;
u8 *t;
if (skb->len < (sizeof(struct ieee80211_authentication)-sizeof(struct ieee80211_info_element))){
IEEE80211_DEBUG_MGMT("invalid len in auth resp: %d\n",skb->len);
return 0xcafe;
}
*challenge = NULL;
a = (struct ieee80211_authentication*) skb->data;
if(skb->len > (sizeof(struct ieee80211_authentication) +3)){
t = skb->data + sizeof(struct ieee80211_authentication);
if(*(t++) == MFIE_TYPE_CHALLENGE){
*chlen = *(t++);
*challenge = kmemdup(t, *chlen, GFP_ATOMIC);
if (!*challenge)
return -ENOMEM;
}
}
return cpu_to_le16(a->status);
}
int auth_rq_parse(struct sk_buff *skb,u8* dest)
{
struct ieee80211_authentication *a;
if (skb->len < (sizeof(struct ieee80211_authentication)-sizeof(struct ieee80211_info_element))){
IEEE80211_DEBUG_MGMT("invalid len in auth request: %d\n",skb->len);
return -1;
}
a = (struct ieee80211_authentication*) skb->data;
memcpy(dest,a->header.addr2, ETH_ALEN);
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 ieee80211_device *ieee, struct sk_buff *skb, u8 *src)
{
u8 *tag;
u8 *skbend;
u8 *ssid=NULL;
u8 ssidlen = 0;
struct ieee80211_hdr_3addr *header =
(struct ieee80211_hdr_3addr *) skb->data;
if (skb->len < sizeof (struct ieee80211_hdr_3addr ))
return -1; /* corrupted */
memcpy(src,header->addr2, ETH_ALEN);
skbend = (u8*)skb->data + skb->len;
tag = skb->data + sizeof (struct ieee80211_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 */
}
//IEEE80211DMESG("Card MAC address is "MACSTR, MAC2STR(src));
if (ssidlen == 0) return 1;
if (!ssid) return 1; /* ssid not found in tagged param */
return (!strncmp(ssid, ieee->current_network.ssid, ssidlen));
}
int assoc_rq_parse(struct sk_buff *skb,u8* dest)
{
struct ieee80211_assoc_request_frame *a;
if (skb->len < (sizeof(struct ieee80211_assoc_request_frame) -
sizeof(struct ieee80211_info_element))) {
IEEE80211_DEBUG_MGMT("invalid len in auth request:%d \n", skb->len);
return -1;
}
a = (struct ieee80211_assoc_request_frame*) skb->data;
memcpy(dest,a->header.addr2,ETH_ALEN);
return 0;
}
static inline u16 assoc_parse(struct sk_buff *skb, int *aid)
{
struct ieee80211_assoc_response_frame *a;
if (skb->len < sizeof(struct ieee80211_assoc_response_frame)){
IEEE80211_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len);
return 0xcafe;
}
a = (struct ieee80211_assoc_response_frame*) skb->data;
*aid = le16_to_cpu(a->aid) & 0x3fff;
return le16_to_cpu(a->status);
}
static inline void
ieee80211_rx_probe_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
{
u8 dest[ETH_ALEN];
//IEEE80211DMESG("Rx probe");
ieee->softmac_stats.rx_probe_rq++;
//DMESG("Dest is "MACSTR, MAC2STR(dest));
if (probe_rq_parse(ieee, skb, dest)){
//IEEE80211DMESG("Was for me!");
ieee->softmac_stats.tx_probe_rs++;
ieee80211_resp_to_probe(ieee, dest);
}
}
inline void
ieee80211_rx_auth_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
{
u8 dest[ETH_ALEN];
int status;
//IEEE80211DMESG("Rx probe");
ieee->softmac_stats.rx_auth_rq++;
status = auth_rq_parse(skb, dest);
if (status != -1) {
ieee80211_resp_to_auth(ieee, status, dest);
}
//DMESG("Dest is "MACSTR, MAC2STR(dest));
}
inline void
ieee80211_rx_assoc_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
{
u8 dest[ETH_ALEN];
//unsigned long flags;
ieee->softmac_stats.rx_ass_rq++;
if (assoc_rq_parse(skb,dest) != -1){
ieee80211_resp_to_assoc_rq(ieee, dest);
}
printk(KERN_INFO"New client associated: %pM\n", dest);
}
void ieee80211_sta_ps_send_null_frame(struct ieee80211_device *ieee, short pwr)
{
struct sk_buff *buf = ieee80211_null_func(ieee, pwr);
if (buf)
softmac_ps_mgmt_xmit(buf, ieee);
}
short ieee80211_sta_ps_sleep(struct ieee80211_device *ieee, u32 *time_h, u32 *time_l)
{
int timeout = 0;
u8 dtim;
/*if(ieee->ps == IEEE80211_PS_DISABLED ||
ieee->iw_mode != IW_MODE_INFRA ||
ieee->state != IEEE80211_LINKED)
return 0;
*/
dtim = ieee->current_network.dtim_data;
//printk("DTIM\n");
if(!(dtim & IEEE80211_DTIM_VALID))
return 0;
else
timeout = ieee->current_network.beacon_interval;
//printk("VALID\n");
ieee->current_network.dtim_data = IEEE80211_DTIM_INVALID;
if(dtim & ((IEEE80211_DTIM_UCAST | IEEE80211_DTIM_MBCAST)& ieee->ps))
return 2;
if(!time_after(jiffies, ieee->dev->trans_start + MSECS(timeout)))
return 0;
if(!time_after(jiffies, ieee->last_rx_ps_time + MSECS(timeout)))
return 0;
if((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE ) &&
(ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
return 0;
if(time_l){
*time_l = ieee->current_network.last_dtim_sta_time[0]
+ MSECS((ieee->current_network.beacon_interval));
//* ieee->current_network.dtim_period));
//printk("beacon_interval:%x, dtim_period:%x, totol to Msecs:%x, HZ:%x\n", ieee->current_network.beacon_interval, ieee->current_network.dtim_period, MSECS(((ieee->current_network.beacon_interval * ieee->current_network.dtim_period))), HZ);
}
if(time_h){
*time_h = ieee->current_network.last_dtim_sta_time[1];
if(time_l && *time_l < ieee->current_network.last_dtim_sta_time[0])
*time_h += 1;
}
return 1;
}
inline void ieee80211_sta_ps(struct ieee80211_device *ieee)
{
u32 th,tl;
short sleep;
unsigned long flags,flags2;
spin_lock_irqsave(&ieee->lock, flags);
if((ieee->ps == IEEE80211_PS_DISABLED ||
ieee->iw_mode != IW_MODE_INFRA ||
ieee->state != IEEE80211_LINKED)){
//#warning CHECK_LOCK_HERE
spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
ieee80211_sta_wakeup(ieee, 1);
spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
}
sleep = ieee80211_sta_ps_sleep(ieee,&th, &tl);
// printk("===>%s,%d[2 wake, 1 sleep, 0 do nothing], ieee->sta_sleep = %d\n",__func__, sleep,ieee->sta_sleep);
/* 2 wake, 1 sleep, 0 do nothing */
if(sleep == 0)
goto out;
if(sleep == 1){
if(ieee->sta_sleep == 1)
ieee->enter_sleep_state(ieee->dev,th,tl);
else if(ieee->sta_sleep == 0){
// printk("send null 1\n");
spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
if(ieee->ps_is_queue_empty(ieee->dev)){
ieee->sta_sleep = 2;
ieee->ps_request_tx_ack(ieee->dev);
ieee80211_sta_ps_send_null_frame(ieee,1);
ieee->ps_th = th;
ieee->ps_tl = tl;
}
spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
}
}else if(sleep == 2){
//#warning CHECK_LOCK_HERE
spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
// printk("send wakeup packet\n");
ieee80211_sta_wakeup(ieee,1);
spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
}
out:
spin_unlock_irqrestore(&ieee->lock, flags);
}
void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl)
{
if(ieee->sta_sleep == 0){
if(nl){
// printk("Warning: driver is probably failing to report TX ps error\n");
ieee->ps_request_tx_ack(ieee->dev);
ieee80211_sta_ps_send_null_frame(ieee, 0);
}
return;
}
if(ieee->sta_sleep == 1)
ieee->sta_wake_up(ieee->dev);
ieee->sta_sleep = 0;
if(nl){
ieee->ps_request_tx_ack(ieee->dev);
ieee80211_sta_ps_send_null_frame(ieee, 0);
}
}
void ieee80211_ps_tx_ack(struct ieee80211_device *ieee, short success)
{
unsigned long flags,flags2;
spin_lock_irqsave(&ieee->lock, flags);
if(ieee->sta_sleep == 2){
/* Null frame with PS bit set */
if(success){
// printk("==================> %s::enter sleep state\n",__func__);
ieee->sta_sleep = 1;
ieee->enter_sleep_state(ieee->dev,ieee->ps_th,ieee->ps_tl);
}
/* 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
*/
}
/* 21112005 - tx again null without PS bit if lost */
else {
if((ieee->sta_sleep == 0) && !success){
spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
ieee80211_sta_ps_send_null_frame(ieee, 0);
spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
}
}
spin_unlock_irqrestore(&ieee->lock, flags);
}
inline int
ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
struct ieee80211_rx_stats *rx_stats, u16 type,
u16 stype)
{
struct ieee80211_hdr_3addr *header = (struct ieee80211_hdr_3addr *) skb->data;
u16 errcode;
u8* challenge=NULL;
int chlen=0;
int aid=0;
struct ieee80211_assoc_response_frame *assoc_resp;
struct ieee80211_info_element *info_element;
if(!ieee->proto_started)
return 0;
if(ieee->sta_sleep || (ieee->ps != IEEE80211_PS_DISABLED &&
ieee->iw_mode == IW_MODE_INFRA &&
ieee->state == IEEE80211_LINKED))
tasklet_schedule(&ieee->ps_task);
if (WLAN_FC_GET_STYPE(header->frame_control) != IEEE80211_STYPE_PROBE_RESP &&
WLAN_FC_GET_STYPE(header->frame_control) != IEEE80211_STYPE_BEACON)
ieee->last_rx_ps_time = jiffies;
switch (WLAN_FC_GET_STYPE(header->frame_control)) {
case IEEE80211_STYPE_ASSOC_RESP:
case IEEE80211_STYPE_REASSOC_RESP:
IEEE80211_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n",
WLAN_FC_GET_STYPE(header->frame_ctl));
if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATED &&
ieee->iw_mode == IW_MODE_INFRA){
if (0 == (errcode=assoc_parse(skb, &aid))){
u16 left;
ieee->state=IEEE80211_LINKED;
ieee->assoc_id = aid;
ieee->softmac_stats.rx_ass_ok++;
//printk(KERN_WARNING "nic_type = %s", (rx_stats->nic_type == 1)?"rtl8187":"rtl8187B");
if(1 == rx_stats->nic_type) //card type is 8187
{
goto associate_complete;
}
assoc_resp = (struct ieee80211_assoc_response_frame*)skb->data;
info_element = &assoc_resp->info_element;
left = skb->len - ((void*)info_element - (void*)assoc_resp);
while (left >= sizeof(struct ieee80211_info_element_hdr)) {
if (sizeof(struct ieee80211_info_element_hdr) + info_element->len > left) {
printk(KERN_WARNING "[re]associate response error!");
return 1;
}
switch (info_element->id) {
case MFIE_TYPE_GENERIC:
IEEE80211_DEBUG_SCAN("MFIE_TYPE_GENERIC: %d bytes\n", info_element->len);
if (info_element->len >= 8 &&
info_element->data[0] == 0x00 &&
info_element->data[1] == 0x50 &&
info_element->data[2] == 0xf2 &&
info_element->data[3] == 0x02 &&
info_element->data[4] == 0x01) {
// Not care about version at present.
//WMM Parameter Element
memcpy(ieee->current_network.wmm_param,(u8*)(info_element->data\
+ 8),(info_element->len - 8));
if (((ieee->current_network.wmm_info^info_element->data[6])& \
0x0f)||(!ieee->init_wmmparam_flag)) {
// refresh parameter element for current network
// update the register parameter for hardware
ieee->init_wmmparam_flag = 1;
queue_work(ieee->wq, &ieee->wmm_param_update_wq);
}
//update info_element for current network
ieee->current_network.wmm_info = info_element->data[6];
}
break;
default:
//nothing to do at present!!!
break;
}
left -= sizeof(struct ieee80211_info_element_hdr) +
info_element->len;
info_element = (struct ieee80211_info_element *)
&info_element->data[info_element->len];
}
if(!ieee->init_wmmparam_flag) //legacy AP, reset the AC_xx_param register
{
queue_work(ieee->wq,&ieee->wmm_param_update_wq);
ieee->init_wmmparam_flag = 1;//indicate AC_xx_param upated since last associate
}
associate_complete:
ieee80211_associate_complete(ieee);
}else{
ieee->softmac_stats.rx_ass_err++;
IEEE80211_DEBUG_MGMT(
"Association response status code 0x%x\n",
errcode);
ieee80211_associate_abort(ieee);
}
}
break;
case IEEE80211_STYPE_ASSOC_REQ:
case IEEE80211_STYPE_REASSOC_REQ:
if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
ieee->iw_mode == IW_MODE_MASTER)
ieee80211_rx_assoc_rq(ieee, skb);
break;
case IEEE80211_STYPE_AUTH:
if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE){
if (ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATING &&
ieee->iw_mode == IW_MODE_INFRA){
IEEE80211_DEBUG_MGMT("Received authentication response");
if (0 == (errcode=auth_parse(skb, &challenge, &chlen))){
if(ieee->open_wep || !challenge){
ieee->state = IEEE80211_ASSOCIATING_AUTHENTICATED;
ieee->softmac_stats.rx_auth_rs_ok++;
ieee80211_associate_step2(ieee);
}else{
ieee80211_rtl_auth_challenge(ieee, challenge, chlen);
}
}else{
ieee->softmac_stats.rx_auth_rs_err++;
IEEE80211_DEBUG_MGMT("Authentication response status code 0x%x",errcode);
ieee80211_associate_abort(ieee);
}
}else if (ieee->iw_mode == IW_MODE_MASTER){
ieee80211_rx_auth_rq(ieee, skb);
}
}
break;
case IEEE80211_STYPE_PROBE_REQ:
if ((ieee->softmac_features & IEEE_SOFTMAC_PROBERS) &&
((ieee->iw_mode == IW_MODE_ADHOC ||
ieee->iw_mode == IW_MODE_MASTER) &&
ieee->state == IEEE80211_LINKED))
ieee80211_rx_probe_rq(ieee, skb);
break;
case IEEE80211_STYPE_DISASSOC:
case IEEE80211_STYPE_DEAUTH:
/* FIXME for now repeat all the association procedure
* both for disassociation and deauthentication
*/
if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
(ieee->state == IEEE80211_LINKED) &&
(ieee->iw_mode == IW_MODE_INFRA) &&
(!memcmp(header->addr2,ieee->current_network.bssid,ETH_ALEN))){
ieee->state = IEEE80211_ASSOCIATING;
ieee->softmac_stats.reassoc++;
//notify_wx_assoc_event(ieee); //YJ,del,080828, do not notify os here
queue_work(ieee->wq, &ieee->associate_procedure_wq);
}
break;
default:
return -1;
break;
}
//dev_kfree_skb_any(skb);
return 0;
}
/* following are for a simpler TX queue management.
* Instead of using netif_[stop/wake]_queue the driver
* will uses these two function (plus a reset one), that
* will internally uses 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 want without take care
* to have enough room to TX an entire packet.
* This might be useful if each fragment need 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 needed
* 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 ieee80211_softmac_xmit(struct ieee80211_txb *txb, struct ieee80211_device *ieee)
{
unsigned long flags;
int i;
spin_lock_irqsave(&ieee->lock,flags);
/* called with 2nd parm 0, no tx mgmt lock required */
ieee80211_sta_wakeup(ieee,0);
for(i = 0; i < txb->nr_frags; i++) {
if (ieee->queue_stop){
ieee->tx_pending.txb = txb;
ieee->tx_pending.frag = i;
goto exit;
}else{
ieee->softmac_data_hard_start_xmit(
txb->fragments[i],
ieee->dev,ieee->rate);
//(i+1)<txb->nr_frags);
ieee->stats.tx_packets++;
ieee->stats.tx_bytes += txb->fragments[i]->len;
ieee->dev->trans_start = jiffies;
}
}
ieee80211_txb_free(txb);
exit:
spin_unlock_irqrestore(&ieee->lock,flags);
}
/* called with ieee->lock acquired */
void ieee80211_resume_tx(struct ieee80211_device *ieee)
{
int i;
for(i = ieee->tx_pending.frag; i < ieee->tx_pending.txb->nr_frags; i++) {
if (ieee->queue_stop){
ieee->tx_pending.frag = i;
return;
}else{
ieee->softmac_data_hard_start_xmit(
ieee->tx_pending.txb->fragments[i],
ieee->dev,ieee->rate);
//(i+1)<ieee->tx_pending.txb->nr_frags);
ieee->stats.tx_packets++;
ieee->dev->trans_start = jiffies;
}
}
ieee80211_txb_free(ieee->tx_pending.txb);
ieee->tx_pending.txb = NULL;
}
void ieee80211_reset_queue(struct ieee80211_device *ieee)
{
unsigned long flags;
spin_lock_irqsave(&ieee->lock,flags);
init_mgmt_queue(ieee);
if (ieee->tx_pending.txb){
ieee80211_txb_free(ieee->tx_pending.txb);
ieee->tx_pending.txb = NULL;
}
ieee->queue_stop = 0;
spin_unlock_irqrestore(&ieee->lock,flags);
}
void ieee80211_rtl_wake_queue(struct ieee80211_device *ieee)
{
unsigned long flags;
struct sk_buff *skb;
struct ieee80211_hdr_3addr *header;
spin_lock_irqsave(&ieee->lock,flags);
if (! ieee->queue_stop) goto exit;
ieee->queue_stop = 0;
if(ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE){
while (!ieee->queue_stop && (skb = dequeue_mgmt(ieee))){
header = (struct ieee80211_hdr_3addr *) skb->data;
header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
if (ieee->seq_ctrl[0] == 0xFFF)
ieee->seq_ctrl[0] = 0;
else
ieee->seq_ctrl[0]++;
//printk(KERN_ALERT "ieee80211_wake_queue \n");
ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
dev_kfree_skb_any(skb);//edit by thomas
}
}
if (!ieee->queue_stop && ieee->tx_pending.txb)
ieee80211_resume_tx(ieee);
if (!ieee->queue_stop && netif_queue_stopped(ieee->dev)){
ieee->softmac_stats.swtxawake++;
netif_wake_queue(ieee->dev);
}
exit :
spin_unlock_irqrestore(&ieee->lock,flags);
}
void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee)
{
//unsigned long flags;
//spin_lock_irqsave(&ieee->lock,flags);
if (! netif_queue_stopped(ieee->dev)){
netif_stop_queue(ieee->dev);
ieee->softmac_stats.swtxstop++;
}
ieee->queue_stop = 1;
//spin_unlock_irqrestore(&ieee->lock,flags);
}
inline void ieee80211_randomize_cell(struct ieee80211_device *ieee)
{
get_random_bytes(ieee->current_network.bssid, ETH_ALEN);
/* an IBSS cell address must have the two less significant
* bits of the first byte = 2
*/
ieee->current_network.bssid[0] &= ~0x01;
ieee->current_network.bssid[0] |= 0x02;
}
/* called in user context only */
void ieee80211_start_master_bss(struct ieee80211_device *ieee)
{
ieee->assoc_id = 1;
if (ieee->current_network.ssid_len == 0){
strncpy(ieee->current_network.ssid,
IEEE80211_DEFAULT_TX_ESSID,
IW_ESSID_MAX_SIZE);
ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID);
ieee->ssid_set = 1;
}
memcpy(ieee->current_network.bssid, ieee->dev->dev_addr, ETH_ALEN);
ieee->set_chan(ieee->dev, ieee->current_network.channel);
ieee->state = IEEE80211_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);
}
void ieee80211_start_monitor_mode(struct ieee80211_device *ieee)
{
if(ieee->raw_tx){
if (ieee->data_hard_resume)
ieee->data_hard_resume(ieee->dev);
netif_carrier_on(ieee->dev);
}
}
void ieee80211_start_ibss_wq(struct work_struct *work)
{
struct delayed_work *dwork = to_delayed_work(work);
struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_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_sem hold.
* Anyway some most set operations set a flag to speed-up
* (abort) this wq (when syncro scanning) before sleeping
* on the semaphore
*/
down(&ieee->wx_sem);
if (ieee->current_network.ssid_len == 0){
strcpy(ieee->current_network.ssid,IEEE80211_DEFAULT_TX_ESSID);
ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID);
ieee->ssid_set = 1;
}
/* check if we have this cell in our network list */
ieee80211_softmac_check_all_nets(ieee);
if(ieee->state == IEEE80211_NOLINK)
ieee->current_network.channel = 10;
/* 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 ieee80211_new_net function, when
* finds a good net, just set the ieee->state to IEEE80211_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 == IEEE80211_NOLINK)
ieee80211_start_scan_syncro(ieee);
/* the network definitively is not here.. create a new cell */
if (ieee->state == IEEE80211_NOLINK){
printk("creating new IBSS cell\n");
if(!ieee->wap_set)
ieee80211_randomize_cell(ieee);
if(ieee->modulation & IEEE80211_CCK_MODULATION){
ieee->current_network.rates_len = 4;
ieee->current_network.rates[0] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
ieee->current_network.rates[1] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
ieee->current_network.rates[2] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
ieee->current_network.rates[3] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
}else
ieee->current_network.rates_len = 0;
if(ieee->modulation & IEEE80211_OFDM_MODULATION){
ieee->current_network.rates_ex_len = 8;
ieee->current_network.rates_ex[0] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_6MB;
ieee->current_network.rates_ex[1] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_9MB;
ieee->current_network.rates_ex[2] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_12MB;
ieee->current_network.rates_ex[3] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_18MB;
ieee->current_network.rates_ex[4] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB;
ieee->current_network.rates_ex[5] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_36MB;
ieee->current_network.rates_ex[6] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_48MB;
ieee->current_network.rates_ex[7] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_54MB;
ieee->rate = 540;
}else{
ieee->current_network.rates_ex_len = 0;
ieee->rate = 110;
}
// By default, WMM function will be disabled in IBSS mode
ieee->current_network.QoS_Enable = 0;
ieee->current_network.atim_window = 0;
ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
if(ieee->short_slot)
ieee->current_network.capability |= WLAN_CAPABILITY_SHORT_SLOT;
}
ieee->state = IEEE80211_LINKED;
ieee->set_chan(ieee->dev, ieee->current_network.channel);
ieee->link_change(ieee->dev);
notify_wx_assoc_event(ieee);
ieee80211_start_send_beacons(ieee);
printk(KERN_WARNING "after sending beacon packet!\n");
if (ieee->data_hard_resume)
ieee->data_hard_resume(ieee->dev);
netif_carrier_on(ieee->dev);
up(&ieee->wx_sem);
}
inline void ieee80211_start_ibss(struct ieee80211_device *ieee)
{
queue_delayed_work(ieee->wq, &ieee->start_ibss_wq, 100);
}
/* this is called only in user context, with wx_sem held */
void ieee80211_start_bss(struct ieee80211_device *ieee)
{
unsigned long flags;
//
// Ref: 802.11d 11.1.3.3
// STA shall not start a BSS unless properly formed Beacon frame including a Country IE.
//
if(IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee))
{
if(! ieee->bGlobalDomain)
{
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.
*/
ieee80211_softmac_check_all_nets(ieee);
/* ensure no-one start an associating process (thus setting
* the ieee->state to ieee80211_ASSOCIATING) while we
* have just cheked it and we are going to enable scan.
* The ieee80211_new_net function is always called with
* lock held (from both ieee80211_softmac_check_all_nets and
* the rx path), so we cannot be in the middle of such function
*/
spin_lock_irqsave(&ieee->lock, flags);
//#ifdef ENABLE_IPS
// printk("start bss ENABLE_IPS\n");
//#else
if (ieee->state == IEEE80211_NOLINK){
ieee->actscanning = true;
ieee80211_rtl_start_scan(ieee);
}
//#endif
spin_unlock_irqrestore(&ieee->lock, flags);
}
/* called only in userspace context */
void ieee80211_disassociate(struct ieee80211_device *ieee)
{
netif_carrier_off(ieee->dev);
if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
ieee80211_reset_queue(ieee);
if (ieee->data_hard_stop)
ieee->data_hard_stop(ieee->dev);
if(IS_DOT11D_ENABLE(ieee))
Dot11d_Reset(ieee);
ieee->link_change(ieee->dev);
if (ieee->state == IEEE80211_LINKED)
notify_wx_assoc_event(ieee);
ieee->state = IEEE80211_NOLINK;
}
void ieee80211_associate_retry_wq(struct work_struct *work)
{
struct delayed_work *dwork = to_delayed_work(work);
struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, associate_retry_wq);
unsigned long flags;
down(&ieee->wx_sem);
if(!ieee->proto_started)
goto exit;
if(ieee->state != IEEE80211_ASSOCIATING_RETRY)
goto exit;
/* until we do not set the state to IEEE80211_NOLINK
* there are no possibility to have someone else trying
* to start an association procedure (we get here with
* ieee->state = IEEE80211_ASSOCIATING).
* When we set the state to IEEE80211_NOLINK it is possible
* that the RX path run an attempt to associate, but
* both ieee80211_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->state = IEEE80211_NOLINK;
ieee->beinretry = true;
ieee80211_softmac_check_all_nets(ieee);
spin_lock_irqsave(&ieee->lock, flags);
if(ieee->state == IEEE80211_NOLINK){
ieee->beinretry = false;
ieee->actscanning = true;
ieee80211_rtl_start_scan(ieee);
}
//YJ,add,080828, notify os here
if(ieee->state == IEEE80211_NOLINK)
{
notify_wx_assoc_event(ieee);
}
//YJ,add,080828,end
spin_unlock_irqrestore(&ieee->lock, flags);
exit:
up(&ieee->wx_sem);
}
struct sk_buff *ieee80211_get_beacon_(struct ieee80211_device *ieee)
{
u8 broadcast_addr[] = {0xff,0xff,0xff,0xff,0xff,0xff};
struct sk_buff *skb = NULL;
struct ieee80211_probe_response *b;
skb = ieee80211_probe_resp(ieee, broadcast_addr);
if (!skb)
return NULL;
b = (struct ieee80211_probe_response *) skb->data;
b->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_BEACON);
return skb;
}
struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee)
{
struct sk_buff *skb;
struct ieee80211_probe_response *b;
skb = ieee80211_get_beacon_(ieee);
if(!skb)
return NULL;
b = (struct ieee80211_probe_response *) skb->data;
b->header.seq_ctrl = 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;
}
void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee)
{
ieee->sync_scan_hurryup = 1;
down(&ieee->wx_sem);
ieee80211_stop_protocol(ieee);
up(&ieee->wx_sem);
}
void ieee80211_stop_protocol(struct ieee80211_device *ieee)
{
if (!ieee->proto_started)
return;
ieee->proto_started = 0;
ieee80211_stop_send_beacons(ieee);
if((ieee->iw_mode == IW_MODE_INFRA)&&(ieee->state == IEEE80211_LINKED)) {
SendDisassociation(ieee,NULL,WLAN_REASON_DISASSOC_STA_HAS_LEFT);
}
del_timer_sync(&ieee->associate_timer);
cancel_delayed_work(&ieee->associate_retry_wq);
cancel_delayed_work(&ieee->start_ibss_wq);
ieee80211_stop_scan(ieee);
ieee80211_disassociate(ieee);
}
void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee)
{
ieee->sync_scan_hurryup = 0;
down(&ieee->wx_sem);
ieee80211_start_protocol(ieee);
up(&ieee->wx_sem);
}
void ieee80211_start_protocol(struct ieee80211_device *ieee)
{
short ch = 0;
int i = 0;
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(!GET_DOT11D_INFO(ieee)->channel_map[ch]);
ieee->current_network.channel = ch;
}
if (ieee->current_network.beacon_interval == 0)
ieee->current_network.beacon_interval = 100;
ieee->set_chan(ieee->dev,ieee->current_network.channel);
for(i = 0; i < 17; i++) {
ieee->last_rxseq_num[i] = -1;
ieee->last_rxfrag_num[i] = -1;
ieee->last_packet_time[i] = 0;
}
ieee->init_wmmparam_flag = 0;//reinitialize AC_xx_PARAM registers.
/* 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 ??
*/
switch (ieee->iw_mode) {
case IW_MODE_AUTO:
ieee->iw_mode = IW_MODE_INFRA;
//not set break here intentionly
case IW_MODE_INFRA:
ieee80211_start_bss(ieee);
break;
case IW_MODE_ADHOC:
ieee80211_start_ibss(ieee);
break;
case IW_MODE_MASTER:
ieee80211_start_master_bss(ieee);
break;
case IW_MODE_MONITOR:
ieee80211_start_monitor_mode(ieee);
break;
default:
ieee->iw_mode = IW_MODE_INFRA;
ieee80211_start_bss(ieee);
break;
}
}
#define DRV_NAME "Ieee80211"
void ieee80211_softmac_init(struct ieee80211_device *ieee)
{
int i;
memset(&ieee->current_network, 0, sizeof(struct ieee80211_network));
ieee->state = IEEE80211_NOLINK;
ieee->sync_scan_hurryup = 0;
for(i = 0; i < 5; i++) {
ieee->seq_ctrl[i] = 0;
}
ieee->assoc_id = 0;
ieee->queue_stop = 0;
ieee->scanning = 0;
ieee->softmac_features = 0; //so IEEE2100-like driver are happy
ieee->wap_set = 0;
ieee->ssid_set = 0;
ieee->proto_started = 0;
ieee->basic_rate = IEEE80211_DEFAULT_BASIC_RATE;
ieee->rate = 3;
//#ifdef ENABLE_LPS
ieee->ps = IEEE80211_PS_MBCAST|IEEE80211_PS_UNICAST;
//#else
// ieee->ps = IEEE80211_PS_DISABLED;
//#endif
ieee->sta_sleep = 0;
//by amy
ieee->bInactivePs = false;
ieee->actscanning = false;
ieee->ListenInterval = 2;
ieee->NumRxDataInPeriod = 0; //YJ,add,080828
ieee->NumRxBcnInPeriod = 0; //YJ,add,080828
ieee->NumRxOkTotal = 0;//+by amy 080312
ieee->NumRxUnicast = 0;//YJ,add,080828,for keep alive
ieee->beinretry = false;
ieee->bHwRadioOff = false;
//by amy
init_mgmt_queue(ieee);
ieee->tx_pending.txb = NULL;
init_timer(&ieee->associate_timer);
ieee->associate_timer.data = (unsigned long)ieee;
ieee->associate_timer.function = ieee80211_associate_abort_cb;
init_timer(&ieee->beacon_timer);
ieee->beacon_timer.data = (unsigned long) ieee;
ieee->beacon_timer.function = ieee80211_send_beacon_cb;
ieee->wq = create_workqueue(DRV_NAME);
INIT_DELAYED_WORK(&ieee->start_ibss_wq,(void*) ieee80211_start_ibss_wq);
INIT_WORK(&ieee->associate_complete_wq,(void*) ieee80211_associate_complete_wq);
INIT_WORK(&ieee->associate_procedure_wq,(void*) ieee80211_associate_procedure_wq);
INIT_DELAYED_WORK(&ieee->softmac_scan_wq,(void*) ieee80211_softmac_scan_wq);
INIT_DELAYED_WORK(&ieee->associate_retry_wq,(void*) ieee80211_associate_retry_wq);
INIT_WORK(&ieee->wx_sync_scan_wq,(void*) ieee80211_wx_sync_scan_wq);
// INIT_WORK(&ieee->watch_dog_wq,(void*) ieee80211_watch_dog_wq);
sema_init(&ieee->wx_sem, 1);
sema_init(&ieee->scan_sem, 1);
spin_lock_init(&ieee->mgmt_tx_lock);
spin_lock_init(&ieee->beacon_lock);
tasklet_init(&ieee->ps_task,
(void(*)(unsigned long)) ieee80211_sta_ps,
(unsigned long)ieee);
ieee->pDot11dInfo = kmalloc(sizeof(RT_DOT11D_INFO), GFP_ATOMIC);
}
void ieee80211_softmac_free(struct ieee80211_device *ieee)
{
down(&ieee->wx_sem);
del_timer_sync(&ieee->associate_timer);
cancel_delayed_work(&ieee->associate_retry_wq);
//add for RF power on power of by lizhaoming 080512
cancel_delayed_work(&ieee->GPIOChangeRFWorkItem);
destroy_workqueue(ieee->wq);
kfree(ieee->pDot11dInfo);
up(&ieee->wx_sem);
}
/********************************************************
* Start of WPA code. *
* this is stolen from the ipw2200 driver *
********************************************************/
static int ieee80211_wpa_enable(struct ieee80211_device *ieee, int value)
{
/* This is called when wpa_supplicant loads and closes the driver
* interface. */
printk("%s WPA\n",value ? "enabling" : "disabling");
ieee->wpa_enabled = value;
return 0;
}
void ieee80211_wpa_assoc_frame(struct ieee80211_device *ieee, char *wpa_ie, int wpa_ie_len)
{
/* make sure WPA is enabled */
ieee80211_wpa_enable(ieee, 1);
ieee80211_disassociate(ieee);
}
static int ieee80211_wpa_mlme(struct ieee80211_device *ieee, int command, int reason)
{
int ret = 0;
switch (command) {
case IEEE_MLME_STA_DEAUTH:
// silently ignore
break;
case IEEE_MLME_STA_DISASSOC:
ieee80211_disassociate(ieee);
break;
default:
printk("Unknown MLME request: %d\n", command);
ret = -EOPNOTSUPP;
}
return ret;
}
static int ieee80211_wpa_set_wpa_ie(struct ieee80211_device *ieee,
struct ieee_param *param, int plen)
{
u8 *buf;
if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
(param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
return -EINVAL;
if (param->u.wpa_ie.len) {
buf = kmemdup(param->u.wpa_ie.data, param->u.wpa_ie.len,
GFP_KERNEL);
if (buf == NULL)
return -ENOMEM;
kfree(ieee->wpa_ie);
ieee->wpa_ie = buf;
ieee->wpa_ie_len = param->u.wpa_ie.len;
} else {
kfree(ieee->wpa_ie);
ieee->wpa_ie = NULL;
ieee->wpa_ie_len = 0;
}
ieee80211_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len);
return 0;
}
#define AUTH_ALG_OPEN_SYSTEM 0x1
#define AUTH_ALG_SHARED_KEY 0x2
static int ieee80211_wpa_set_auth_algs(struct ieee80211_device *ieee, int value)
{
struct ieee80211_security sec = {
.flags = SEC_AUTH_MODE,
};
int ret = 0;
if (value & AUTH_ALG_SHARED_KEY) {
sec.auth_mode = WLAN_AUTH_SHARED_KEY;
ieee->open_wep = 0;
} else {
sec.auth_mode = WLAN_AUTH_OPEN;
ieee->open_wep = 1;
}
if (ieee->set_security)
ieee->set_security(ieee->dev, &sec);
else
ret = -EOPNOTSUPP;
return ret;
}
static int ieee80211_wpa_set_param(struct ieee80211_device *ieee, u8 name, u32 value)
{
int ret=0;
unsigned long flags;
switch (name) {
case IEEE_PARAM_WPA_ENABLED:
ret = ieee80211_wpa_enable(ieee, value);
break;
case IEEE_PARAM_TKIP_COUNTERMEASURES:
ieee->tkip_countermeasures=value;
break;
case IEEE_PARAM_DROP_UNENCRYPTED: {
/* HACK:
*
* wpa_supplicant calls set_wpa_enabled when the driver
* is loaded and unloaded, regardless of if WPA is being
* used. No other calls are made which can be used to
* determine if encryption will be used or not prior to
* association being expected. If encryption is not being
* used, drop_unencrypted is set to false, else true -- we
* can use this to determine if the CAP_PRIVACY_ON bit should
* be set.
*/
struct ieee80211_security sec = {
.flags = SEC_ENABLED,
.enabled = value,
};
ieee->drop_unencrypted = value;
/* We only change SEC_LEVEL for open mode. Others
* are set by ipw_wpa_set_encryption.
*/
if (!value) {
sec.flags |= SEC_LEVEL;
sec.level = SEC_LEVEL_0;
}
else {
sec.flags |= SEC_LEVEL;
sec.level = SEC_LEVEL_1;
}
if (ieee->set_security)
ieee->set_security(ieee->dev, &sec);
break;
}
case IEEE_PARAM_PRIVACY_INVOKED:
ieee->privacy_invoked=value;
break;
case IEEE_PARAM_AUTH_ALGS:
ret = ieee80211_wpa_set_auth_algs(ieee, value);
break;
case IEEE_PARAM_IEEE_802_1X:
ieee->ieee802_1x=value;
break;
case IEEE_PARAM_WPAX_SELECT:
// added for WPA2 mixed mode
//printk(KERN_WARNING "------------------------>wpax value = %x\n", value);
spin_lock_irqsave(&ieee->wpax_suitlist_lock,flags);
ieee->wpax_type_set = 1;
ieee->wpax_type_notify = value;
spin_unlock_irqrestore(&ieee->wpax_suitlist_lock,flags);
break;
default:
printk("Unknown WPA param: %d\n",name);
ret = -EOPNOTSUPP;
}
return ret;
}
/* implementation borrowed from hostap driver */
static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
struct ieee_param *param, int param_len)
{
int ret = 0;
struct ieee80211_crypto_ops *ops;
struct ieee80211_crypt_data **crypt;
struct ieee80211_security sec = {
.flags = 0,
};
param->u.crypt.err = 0;
param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0';
if (param_len !=
(int) ((char *) param->u.crypt.key - (char *) param) +
param->u.crypt.key_len) {
printk("Len mismatch %d, %d\n", param_len,
param->u.crypt.key_len);
return -EINVAL;
}
if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
if (param->u.crypt.idx >= WEP_KEYS)
return -EINVAL;
crypt = &ieee->crypt[param->u.crypt.idx];
} else {
return -EINVAL;
}
if (strcmp(param->u.crypt.alg, "none") == 0) {
if (crypt) {
sec.enabled = 0;
// FIXME FIXME
//sec.encrypt = 0;
sec.level = SEC_LEVEL_0;
sec.flags |= SEC_ENABLED | SEC_LEVEL;
ieee80211_crypt_delayed_deinit(ieee, crypt);
}
goto done;
}
sec.enabled = 1;
// FIXME FIXME
// sec.encrypt = 1;
sec.flags |= SEC_ENABLED;
/* IPW HW cannot build TKIP MIC, host decryption still needed. */
if (!(ieee->host_encrypt || ieee->host_decrypt) &&
strcmp(param->u.crypt.alg, "TKIP"))
goto skip_host_crypt;
ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0)
ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0)
ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0)
ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
if (ops == NULL) {
printk("unknown crypto alg '%s'\n", param->u.crypt.alg);
param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
ret = -EINVAL;
goto done;
}
if (*crypt == NULL || (*crypt)->ops != ops) {
struct ieee80211_crypt_data *new_crypt;
ieee80211_crypt_delayed_deinit(ieee, crypt);
new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
if (new_crypt == NULL) {
ret = -ENOMEM;
goto done;
}
memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
new_crypt->ops = ops;
if (new_crypt->ops)
new_crypt->priv =
new_crypt->ops->init(param->u.crypt.idx);
if (new_crypt->priv == NULL) {
kfree(new_crypt);
param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED;
ret = -EINVAL;
goto done;
}
*crypt = new_crypt;
}
if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
(*crypt)->ops->set_key(param->u.crypt.key,
param->u.crypt.key_len, param->u.crypt.seq,
(*crypt)->priv) < 0) {
printk("key setting failed\n");
param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED;
ret = -EINVAL;
goto done;
}
skip_host_crypt:
if (param->u.crypt.set_tx) {
ieee->tx_keyidx = param->u.crypt.idx;
sec.active_key = param->u.crypt.idx;
sec.flags |= SEC_ACTIVE_KEY;
} else
sec.flags &= ~SEC_ACTIVE_KEY;
if (param->u.crypt.alg != NULL) {
memcpy(sec.keys[param->u.crypt.idx],
param->u.crypt.key,
param->u.crypt.key_len);
sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
sec.flags |= (1 << param->u.crypt.idx);
if (strcmp(param->u.crypt.alg, "WEP") == 0) {
sec.flags |= SEC_LEVEL;
sec.level = SEC_LEVEL_1;
} else if (strcmp(param->u.crypt.alg, "TKIP") == 0) {
sec.flags |= SEC_LEVEL;
sec.level = SEC_LEVEL_2;
} else if (strcmp(param->u.crypt.alg, "CCMP") == 0) {
sec.flags |= SEC_LEVEL;
sec.level = SEC_LEVEL_3;
}
}
done:
if (ieee->set_security)
ieee->set_security(ieee->dev, &sec);
/* Do not reset port if card is in Managed mode since resetting will
* generate new IEEE 802.11 authentication which may end up in looping
* with IEEE 802.1X. If your hardware requires a reset after WEP
* configuration (for example... Prism2), implement the reset_port in
* the callbacks structures used to initialize the 802.11 stack. */
if (ieee->reset_on_keychange &&
ieee->iw_mode != IW_MODE_INFRA &&
ieee->reset_port &&
ieee->reset_port(ieee->dev)) {
printk("reset_port failed\n");
param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED;
return -EINVAL;
}
return ret;
}
int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_point *p)
{
struct ieee_param *param;
int ret=0;
down(&ieee->wx_sem);
//IEEE_DEBUG_INFO("wpa_supplicant: len=%d\n", p->length);
if (p->length < sizeof(struct ieee_param) || !p->pointer){
ret = -EINVAL;
goto out;
}
param = kmalloc(p->length, GFP_KERNEL);
if (param == NULL){
ret = -ENOMEM;
goto out;
}
if (copy_from_user(param, p->pointer, p->length)) {
kfree(param);
ret = -EFAULT;
goto out;
}
switch (param->cmd) {
case IEEE_CMD_SET_WPA_PARAM:
ret = ieee80211_wpa_set_param(ieee, param->u.wpa_param.name,
param->u.wpa_param.value);
break;
case IEEE_CMD_SET_WPA_IE:
ret = ieee80211_wpa_set_wpa_ie(ieee, param, p->length);
break;
case IEEE_CMD_SET_ENCRYPTION:
ret = ieee80211_wpa_set_encryption(ieee, param, p->length);
break;
case IEEE_CMD_MLME:
ret = ieee80211_wpa_mlme(ieee, param->u.mlme.command,
param->u.mlme.reason_code);
break;
default:
printk("Unknown WPA supplicant request: %d\n",param->cmd);
ret = -EOPNOTSUPP;
break;
}
if (ret == 0 && copy_to_user(p->pointer, param, p->length))
ret = -EFAULT;
kfree(param);
out:
up(&ieee->wx_sem);
return ret;
}
void notify_wx_assoc_event(struct ieee80211_device *ieee)
{
union iwreq_data wrqu;
wrqu.ap_addr.sa_family = ARPHRD_ETHER;
if (ieee->state == IEEE80211_LINKED)
memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid, ETH_ALEN);
else
memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
}