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luckfox-pico-sdk/sysdrv/drv_ko/wifi/atbm/hal_apollo/mac80211/mlme.c
luckfox-eng29 8f34c2760d project:build.sh: Added fastboot support; custom modifications to U-Boot and kernel implemented using patches. 
project:cfg:BoardConfig_IPC: Added fastboot BoardConfig file and firmware post-scripts, distinguishing between
the BoardConfigs for Luckfox Pico Pro and Luckfox Pico Max. project:app: Added fastboot_client and rk_smart_door
for quick boot applications; updated rkipc app to adapt to the latest media library. media:samples: Added more
usage examples. media:rockit: Fixed bugs; removed support for retrieving data frames from VPSS. media:isp:
Updated rkaiq library and related tools to support connection to RKISP_Tuner. sysdrv:Makefile: Added support for
compiling drv_ko on Luckfox Pico Ultra W using Ubuntu; added support for custom root filesystem.
sysdrv:tools:board: Updated Buildroot optional mirror sources, updated some software versions, and stored device
tree files and configuration files that undergo multiple modifications for U-Boot and kernel separately.
sysdrv:source:mcu: Used RISC-V MCU SDK with RT-Thread system, mainly for initializing camera AE during quick
boot. sysdrv:source:uboot: Added support for fastboot; added high baud rate DDR bin for serial firmware upgrades.
sysdrv:source:kernel: Upgraded to version 5.10.160; increased NPU frequency for RV1106G3; added support for
fastboot.

Signed-off-by: luckfox-eng29 <eng29@luckfox.com>
2024-10-14 09:47:04 +08:00

3963 lines
115 KiB
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/*
* BSS client mode implementation
* Copyright 2003-2008, Jouni Malinen <j@w1.fi>
* Copyright 2004, Instant802 Networks, Inc.
* Copyright 2005, Devicescape Software, Inc.
* Copyright 2006-2007 Jiri Benc <jbenc@suse.cz>
* Copyright 2007, Michael Wu <flamingice@sourmilk.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#include <linux/delay.h>
#include <linux/if_ether.h>
#include <linux/skbuff.h>
#include <linux/if_arp.h>
#include <linux/etherdevice.h>
#include <linux/moduleparam.h>
#include <linux/rtnetlink.h>
#ifdef CONFIG_ATBM_PM_QOS
#include <linux/pm_qos.h>
#endif
#include <linux/crc32.h>
#include <linux/slab.h>
#include <linux/export.h>
#include <net/atbm_mac80211.h>
#include <asm/unaligned.h>
#include "ieee80211_i.h"
#include "driver-ops.h"
#include "rate.h"
#include "led.h"
static int wifi_status = 0;
unsigned int atbm_wifi_status_get(void)
{
return wifi_status;
}
static void atbm_wifi_status_set(unsigned int state)
{
wifi_status = state;
return;
}
//extern int g_connetting;
#if 0
static int max_nullfunc_tries = 2;
module_param(max_nullfunc_tries, int, 0644);
MODULE_PARM_DESC(max_nullfunc_tries,
"Maximum nullfunc tx tries before disconnecting (reason 4).");
static int max_probe_tries = 5;
module_param(max_probe_tries, int, 0644);
MODULE_PARM_DESC(max_probe_tries,
"Maximum probe tries before disconnecting (reason 4).");
#endif
#if defined (CONFIG_ATBM_MAC80211_NO_USE) || defined(CONFIG_PM)
static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,
u8 *bssid, u8 reason);
#endif
/*
* Beacon loss timeout is calculated as N frames times the
* advertised beacon interval. This may need to be somewhat
* higher than what hardware might detect to account for
* delays in the host processing frames. But since we also
* probe on beacon miss before declaring the connection lost
* default to what we want.
*/
#define IEEE80211_BEACON_LOSS_COUNT 7
/*
* Time the connection can be idle before we probe
* it to see if we can still talk to the AP.
*/
#define IEEE80211_CONNECTION_IDLE_TIME (30 * HZ)
/*
* Time we wait for a probe response after sending
* a probe request because of beacon loss or for
* checking the connection still works.
*/
#if 0
static int probe_wait_ms = 500;
module_param(probe_wait_ms, int, 0644);
MODULE_PARM_DESC(probe_wait_ms,"Maximum time";
#endif
/*
* Weight given to the latest Beacon frame when calculating average signal
* strength for Beacon frames received in the current BSS. This must be
* between 1 and 15.
*/
#define IEEE80211_SIGNAL_AVE_WEIGHT 3
/*
* How many Beacon frames need to have been used in average signal strength
* before starting to indicate signal change events.
*/
#define IEEE80211_SIGNAL_AVE_MIN_COUNT 4
#define TMR_RUNNING_TIMER 0
#define TMR_RUNNING_CHANSW 1
/*
* All cfg80211 functions have to be called outside a locked
* section so that they can acquire a lock themselves... This
* is much simpler than queuing up things in cfg80211, but we
* do need some indirection for that here.
*/
enum rx_mgmt_action {
/* no action required */
RX_MGMT_NONE,
/* caller must call cfg80211_send_deauth() */
RX_MGMT_CFG80211_DEAUTH,
/* caller must call cfg80211_send_disassoc() */
RX_MGMT_CFG80211_DISASSOC,
};
/* utils */
static inline void ASSERT_MGD_MTX(struct ieee80211_if_managed *ifmgd)
{
lockdep_assert_held(&ifmgd->mtx);
}
/*
* We can have multiple work items (and connection probing)
* scheduling this timer, but we need to take care to only
* reschedule it when it should fire _earlier_ than it was
* asked for before, or if it's not pending right now. This
* function ensures that. Note that it then is required to
* run this function for all timeouts after the first one
* has happened -- the work that runs from this timer will
* do that.
*/
#ifdef CONFIG_ATBM_MAC80211_NO_USE
static void run_again(struct ieee80211_if_managed *ifmgd,
unsigned long timeout)
{
ASSERT_MGD_MTX(ifmgd);
if (!atbm_timer_pending(&ifmgd->timer) ||
time_before(timeout, ifmgd->timer.expires))
atbm_mod_timer(&ifmgd->timer, timeout);
}
void ieee80211_sta_reset_beacon_monitor(struct ieee80211_sub_if_data *sdata)
{
if (sdata->local->hw.flags & IEEE80211_HW_BEACON_FILTER)
return;
atbm_mod_timer(&sdata->u.mgd.bcn_mon_timer,
round_jiffies_up(jiffies + sdata->u.mgd.beacon_timeout));
}
void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
if (unlikely(!sdata->u.mgd.associated))
return;
if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
return;
atbm_mod_timer(&sdata->u.mgd.conn_mon_timer,
round_jiffies_up(jiffies + IEEE80211_CONNECTION_IDLE_TIME));
ifmgd->probe_send_count = 0;
}
void ieee80211_send_nullfunc(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
int powersave)
{
struct sk_buff *skb;
struct ieee80211_hdr_3addr *nullfunc;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
skb = ieee80211_nullfunc_get(&local->hw, &sdata->vif);
if (!skb)
return;
nullfunc = (struct ieee80211_hdr_3addr *) skb->data;
if (powersave)
nullfunc->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
IEEE80211_STA_CONNECTION_POLL))
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_CTL_USE_MINRATE;
ieee80211_tx_skb(sdata, skb);
}
void ieee80211_sta_rx_notify(struct ieee80211_sub_if_data *sdata,
struct ieee80211_hdr *hdr)
{
/*
* We can postpone the mgd.timer whenever receiving unicast frames
* from AP because we know that the connection is working both ways
* at that time. But multicast frames (and hence also beacons) must
* be ignored here, because we need to trigger the timer during
* data idle periods for sending the periodic probe request to the
* AP we're connected to.
*/
if (is_multicast_ether_addr(hdr->addr1))
return;
ieee80211_sta_reset_conn_monitor(sdata);
}
static void ieee80211_reset_ap_probe(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
if (!(ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
IEEE80211_STA_CONNECTION_POLL)))
return;
ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL |
IEEE80211_STA_BEACON_POLL);
mutex_lock(&sdata->local->iflist_mtx);
ieee80211_recalc_ps(sdata->local, -1);
mutex_unlock(&sdata->local->iflist_mtx);
if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
return;
/*
* We've received a probe response, but are not sure whether
* we have or will be receiving any beacons or data, so let's
* schedule the timers again, just in case.
*/
ieee80211_sta_reset_beacon_monitor(sdata);
atbm_mod_timer(&ifmgd->conn_mon_timer,
round_jiffies_up(jiffies +
IEEE80211_CONNECTION_IDLE_TIME));
}
void ieee80211_sta_tx_notify(struct ieee80211_sub_if_data *sdata,
struct ieee80211_hdr *hdr, bool ack)
{
if (!ieee80211_is_data(hdr->frame_control))
return;
if (ack)
ieee80211_sta_reset_conn_monitor(sdata);
if (ieee80211_is_nullfunc(hdr->frame_control) &&
sdata->u.mgd.probe_send_count > 0) {
if (ack)
sdata->u.mgd.probe_send_count = 0;
else
sdata->u.mgd.nullfunc_failed = true;
ieee80211_queue_work(&sdata->local->hw, &sdata->work);
}
}
static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
const u8 *ssid;
u8 *dst = ifmgd->associated->bssid;
u8 unicast_limit = max(1, max_probe_tries - 3);
/*
* Try sending broadcast probe requests for the last three
* probe requests after the first ones failed since some
* buggy APs only support broadcast probe requests.
*/
if (ifmgd->probe_send_count >= unicast_limit)
dst = NULL;
/*
* When the hardware reports an accurate Tx ACK status, it's
* better to send a nullfunc frame instead of a probe request,
* as it will kick us off the AP quickly if we aren't associated
* anymore. The timeout will be reset if the frame is ACKed by
* the AP.
*/
ifmgd->probe_send_count++;
if (sdata->local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) {
ifmgd->nullfunc_failed = false;
ieee80211_send_nullfunc(sdata->local, sdata, 0);
} else {
ssid = ieee80211_bss_get_ie(ifmgd->associated, ATBM_WLAN_EID_SSID);
ieee80211_send_probe_req(sdata, dst, ssid + 2, ssid[1], NULL, 0,
(u32) -1, true, false);
}
ifmgd->probe_timeout = jiffies + msecs_to_jiffies(probe_wait_ms);
run_again(ifmgd, ifmgd->probe_timeout);
}
static void ieee80211_mgd_probe_ap(struct ieee80211_sub_if_data *sdata,
bool beacon)
{
struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(sdata->local, sdata);
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
bool already = false;
if (!ieee80211_sdata_running(sdata))
return;
if (sdata->local->scanning)
return;
if (chan_state->tmp_channel)
return;
mutex_lock(&ifmgd->mtx);
if (!ifmgd->associated)
goto out;
#ifdef CONFIG_MAC80211_ATBM_VERBOSE_DEBUG
if (beacon && net_ratelimit())
atbm_printk_debug("%s: detected beacon loss from AP "
"- sending probe request\n", sdata->name);
#endif
/*
* The driver/our work has already reported this event or the
* connection monitoring has kicked in and we have already sent
* a probe request. Or maybe the AP died and the driver keeps
* reporting until we disassociate...
*
* In either case we have to ignore the current call to this
* function (except for setting the correct probe reason bit)
* because otherwise we would reset the timer every time and
* never check whether we received a probe response!
*/
if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
IEEE80211_STA_CONNECTION_POLL))
already = true;
if (beacon)
ifmgd->flags |= IEEE80211_STA_BEACON_POLL;
else
ifmgd->flags |= IEEE80211_STA_CONNECTION_POLL;
if (already)
goto out;
mutex_lock(&sdata->local->iflist_mtx);
ieee80211_recalc_ps(sdata->local, -1);
mutex_unlock(&sdata->local->iflist_mtx);
ifmgd->probe_send_count = 0;
ieee80211_mgd_probe_ap_send(sdata);
out:
mutex_unlock(&ifmgd->mtx);
}
static void ieee80211_sta_timer(unsigned long data)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
if (local->quiescing) {
set_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running);
return;
}
ieee80211_queue_work(&local->hw, &sdata->work);
}
void ieee80211_sta_work(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_vif *vif = &sdata->vif;
struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
/* then process the rest of the work */
mutex_lock(&ifmgd->mtx);
if (ifmgd->flags & (IEEE80211_STA_BEACON_POLL |
IEEE80211_STA_CONNECTION_POLL) &&
ifmgd->associated) {
u8 bssid[ETH_ALEN];
int max_tries;
memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS)
max_tries = max_nullfunc_tries;
else
max_tries = max_probe_tries;
/* ACK received for nullfunc probing frame */
if (!ifmgd->probe_send_count)
ieee80211_reset_ap_probe(sdata);
else if (ifmgd->nullfunc_failed) {
if (ifmgd->probe_send_count < max_tries) {
#ifdef CONFIG_MAC80211_ATBM_VERBOSE_DEBUG
wiphy_debug(local->hw.wiphy,
"%s: No ack for nullfunc frame to"
" AP %pM, try %d/%i\n",
sdata->name, bssid,
ifmgd->probe_send_count, max_tries);
#endif
ieee80211_mgd_probe_ap_send(sdata);
} else {
#ifdef CONFIG_MAC80211_ATBM_VERBOSE_DEBUG
wiphy_debug(local->hw.wiphy,
"%s: No ack for nullfunc frame to"
" AP %pM, disconnecting.\n",
sdata->name, bssid);
#endif
ieee80211_sta_connection_lost(sdata, bssid,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
}
} else if (time_is_after_jiffies(ifmgd->probe_timeout))
run_again(ifmgd, ifmgd->probe_timeout);
else if (local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) {
#ifdef CONFIG_MAC80211_ATBM_VERBOSE_DEBUG
wiphy_debug(local->hw.wiphy,
"%s: Failed to send nullfunc to AP %pM"
" after %dms, disconnecting.\n",
sdata->name,
bssid, probe_wait_ms);
#endif
ieee80211_sta_connection_lost(sdata, bssid,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
} else if (ifmgd->probe_send_count < max_tries) {
#ifdef CONFIG_MAC80211_ATBM_VERBOSE_DEBUG
wiphy_debug(local->hw.wiphy,
"%s: No probe response from AP %pM"
" after %dms, try %d/%i\n",
sdata->name,
bssid, probe_wait_ms,
ifmgd->probe_send_count, max_tries);
#endif
ieee80211_mgd_probe_ap_send(sdata);
/* STE: Changed to follow STE beacon_miss/beacon_loss design */
} else if (!(bss_conf->cqm_beacon_miss_thold) &&
!(bss_conf->cqm_tx_fail_thold)) {
/*
* We actually lost the connection ... or did we?
* Let's make sure!
*/
wiphy_debug(local->hw.wiphy,
"%s: No probe response from AP %pM"
" after %dms, disconnecting.\n",
sdata->name,
bssid, probe_wait_ms);
ieee80211_sta_connection_lost(sdata, bssid,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY);
}
}
mutex_unlock(&ifmgd->mtx);
}
static void ieee80211_sta_bcn_mon_timer(unsigned long data)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
struct ieee80211_local *local = sdata->local;
if (local->quiescing)
return;
ieee80211_queue_work(&sdata->local->hw,
&sdata->u.mgd.beacon_connection_loss_work);
}
static void ieee80211_sta_conn_mon_timer(unsigned long data)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
if (local->quiescing)
return;
ieee80211_queue_work(&local->hw, &ifmgd->monitor_work);
}
static void ieee80211_sta_monitor_work(struct atbm_work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
container_of(work, struct ieee80211_sub_if_data,
u.mgd.monitor_work);
ieee80211_mgd_probe_ap(sdata, false);
}
static void ieee80211_restart_sta_timer(struct ieee80211_sub_if_data *sdata, bool monitor)
{
if (sdata->vif.type == NL80211_IFTYPE_STATION) {
if (monitor) {
sdata->u.mgd.flags &= ~(IEEE80211_STA_BEACON_POLL |
IEEE80211_STA_CONNECTION_POLL);
/* let's probe the connection once */
ieee80211_queue_work(&sdata->local->hw,
&sdata->u.mgd.monitor_work);
}
/* and do all the other regular work too */
ieee80211_queue_work(&sdata->local->hw, &sdata->work);
}
}
#endif
static int ecw2cw(int ecw)
{
return (1 << ecw) - 1;
}
/*
* ieee80211_enable_ht should be called only after the operating band
* has been determined as ht configuration depends on the hw's
* HT abilities for a specific band.
*/
static u32 ieee80211_enable_ht(struct ieee80211_sub_if_data *sdata,
struct ieee80211_ht_info *hti,
const u8 *bssid, u16 ap_ht_cap_flags,
bool beacon_htcap_ie)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(local, sdata);
struct ieee80211_supported_band *sband;
struct sta_info *sta;
u32 changed = 0;
int hti_cfreq;
u16 ht_opmode;
bool enable_ht = true;
enum nl80211_channel_type prev_chantype;
enum nl80211_channel_type channel_type = NL80211_CHAN_NO_HT;
sband = local->hw.wiphy->bands[chan_state->conf.channel->band];
prev_chantype = sdata->vif.bss_conf.channel_type;
/* HT is not supported */
if (!sband->ht_cap.ht_supported)
enable_ht = false;
if (enable_ht) {
hti_cfreq = ieee80211_channel_to_frequency(hti->control_chan,
sband->band);
/* check that channel matches the right operating channel */
if (channel_center_freq(chan_state->conf.channel) != hti_cfreq) {
/* Some APs mess this up, evidently.
* Netgear WNDR3700 sometimes reports 4 higher than
* the actual channel, for instance.
*/
atbm_printk_err(
"%s: Wrong control channel in association"
" response: configured center-freq: %d"
" hti-cfreq: %d hti->control_chan: %d"
" band: %d. Disabling HT.\n",
sdata->name,
channel_center_freq(chan_state->conf.channel),
hti_cfreq, hti->control_chan,
sband->band);
enable_ht = false;
}
}
if (enable_ht) {
channel_type = NL80211_CHAN_HT20;
if (!(ap_ht_cap_flags & IEEE80211_HT_CAP_40MHZ_INTOLERANT) &&
(sband->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
(hti->ht_param & IEEE80211_HT_PARAM_CHAN_WIDTH_ANY)) {
switch(hti->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
if (!(chan_state->conf.channel->flags &
IEEE80211_CHAN_NO_HT40PLUS))
channel_type = NL80211_CHAN_HT40PLUS;
break;
case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
if (!(chan_state->conf.channel->flags &
IEEE80211_CHAN_NO_HT40MINUS))
channel_type = NL80211_CHAN_HT40MINUS;
break;
}
}
}
if (chan_state->tmp_channel)
chan_state->tmp_channel_type = channel_type;
if (!ieee80211_set_channel_type(local, sdata, channel_type)) {
/* can only fail due to HT40+/- mismatch */
channel_type = NL80211_CHAN_HT20;
WARN_ON(!ieee80211_set_channel_type(local, sdata, channel_type));
}
if (beacon_htcap_ie && (prev_chantype != channel_type)) {
/*
* Whenever the AP announces the HT mode change that can be
* 40MHz intolerant or etc., it would be safer to stop tx
* queues before doing hw config to avoid buffer overflow.
*/
ieee80211_stop_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE);
/* flush out all packets */
synchronize_net();
drv_flush(local, sdata, false);
}
/* channel_type change automatically detected */
ieee80211_hw_config(local, 0);
if (prev_chantype != channel_type) {
rcu_read_lock();
sta = sta_info_get(sdata, bssid);
if (sta){
#ifndef CONFIG_RATE_HW_CONTROL
rate_control_rate_update(local, sband, sta,
IEEE80211_RC_HT_CHANGED,
channel_type);
#endif
ieee80211_ht_cap_to_sta_channel_type(sta);
}
rcu_read_unlock();
if (beacon_htcap_ie)
ieee80211_wake_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CHTYPE_CHANGE);
}
ht_opmode = le16_to_cpu(hti->operation_mode);
/* if bss configuration changed store the new one */
if (sdata->ht_opmode_valid != enable_ht ||
sdata->vif.bss_conf.ht_operation_mode != ht_opmode ||
prev_chantype != channel_type) {
changed |= BSS_CHANGED_HT;
sdata->vif.bss_conf.ht_operation_mode = ht_opmode;
sdata->ht_opmode_valid = enable_ht;
}
return changed;
}
/* frame sending functions */
static void ieee80211_send_deauth_disassoc(struct ieee80211_sub_if_data *sdata,
const u8 *bssid, u16 stype, u16 reason,
void *cookie, bool send_frame)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct sk_buff *skb;
struct atbm_ieee80211_mgmt *mgmt;
skb = atbm_dev_alloc_skb(local->hw.extra_tx_headroom + sizeof(*mgmt));
if (!skb)
return;
atbm_skb_reserve(skb, local->hw.extra_tx_headroom);
mgmt = (struct atbm_ieee80211_mgmt *) atbm_skb_put(skb, 24);
memset(mgmt, 0, 24);
memcpy(mgmt->da, bssid, ETH_ALEN);
memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
memcpy(mgmt->bssid, bssid, ETH_ALEN);
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT | stype);
atbm_skb_put(skb, 2);
/* u.deauth.reason_code == u.disassoc.reason_code */
mgmt->u.deauth.reason_code = cpu_to_le16(reason);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0))
if (stype == IEEE80211_STYPE_DEAUTH)
if (cookie)
__cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
else
cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
else
if (cookie)
__cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
else
cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
#else
/*
cfg80211_tx_mlme_mgmt(sdata->dev, frame_buf,
IEEE80211_DEAUTH_FRAME_LEN);
*/
if (cookie)
cfg80211_tx_mlme_mgmt(sdata->dev, (u8 *)mgmt, skb->len);
else
{
struct wireless_dev *wdev = sdata->dev->ieee80211_ptr;
atbm_wdev_lock(wdev);
cfg80211_tx_mlme_mgmt(sdata->dev, (u8 *)mgmt, skb->len);
atbm_wdev_unlock(wdev);
}
#endif
if (!(ifmgd->flags & IEEE80211_STA_MFP_ENABLED))
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
if (send_frame)
ieee80211_tx_skb(sdata, skb);
else
atbm_kfree_skb(skb);
}
#ifdef CONFIG_ATBM_MAC80211_NO_USE
void ieee80211_send_pspoll(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_pspoll *pspoll;
struct sk_buff *skb;
skb = ieee80211_pspoll_get(&local->hw, &sdata->vif);
if (!skb)
return;
pspoll = (struct ieee80211_pspoll *) skb->data;
pspoll->frame_control |= cpu_to_le16(IEEE80211_FCTL_PM);
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
ieee80211_tx_skb(sdata, skb);
}
#endif
#ifdef CONFIG_ATBM_4ADDR
static void ieee80211_send_4addr_nullfunc(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata)
{
struct sk_buff *skb;
struct ieee80211_hdr *nullfunc;
__le16 fc;
if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
return;
skb = atbm_dev_alloc_skb(local->hw.extra_tx_headroom + 30);
if (!skb)
return;
atbm_skb_reserve(skb, local->hw.extra_tx_headroom);
nullfunc = (struct ieee80211_hdr *) atbm_skb_put(skb, 30);
memset(nullfunc, 0, 30);
fc = cpu_to_le16(IEEE80211_FTYPE_DATA | IEEE80211_STYPE_NULLFUNC |
IEEE80211_FCTL_FROMDS | IEEE80211_FCTL_TODS);
nullfunc->frame_control = fc;
memcpy(nullfunc->addr1, sdata->u.mgd.bssid, ETH_ALEN);
memcpy(nullfunc->addr2, sdata->vif.addr, ETH_ALEN);
memcpy(nullfunc->addr3, sdata->u.mgd.bssid, ETH_ALEN);
memcpy(nullfunc->addr4, sdata->vif.addr, ETH_ALEN);
IEEE80211_SKB_CB(skb)->flags |= IEEE80211_TX_INTFL_DONT_ENCRYPT;
ieee80211_tx_skb(sdata, skb);
}
#endif
/* spectrum management related things */
#ifdef CONFIG_ATBM_SUPPORT_CHANSWITCH
static void ieee80211_chswitch_work(struct atbm_work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
container_of(work, struct ieee80211_sub_if_data, u.mgd.chswitch_work);
struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(sdata->local, sdata);
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
#ifdef ATBM_SUPPORT_WIDTH_40M
enum nl80211_channel_type prev_channel_type;
#endif
if (!ieee80211_sdata_running(sdata))
return;
mutex_lock(&ifmgd->mtx);
if (!ifmgd->associated)
goto out;
chan_state->oper_channel = chan_state->csa_channel;
if (!sdata->local->ops->channel_switch) {
#ifdef ATBM_SUPPORT_WIDTH_40M
prev_channel_type = sdata->local->chan_state.conf.channel_type;
#endif
/* call "hw_config" only if doing sw channel switch */
ieee80211_hw_config(sdata->local,
IEEE80211_CONF_CHANGE_CHANNEL);
#ifdef ATBM_SUPPORT_WIDTH_40M
/*
*if channel type has been changed,update the rate ctrl
*/
if(prev_channel_type != sdata->local->chan_state.conf.channel_type)
{
struct sta_info *sta;
struct ieee80211_supported_band *sband;
sband = sdata->local->hw.wiphy->bands[chan_state->conf.channel->band];
rcu_read_lock();
sta = sta_info_get(sdata, ifmgd->associated->bssid);
#ifndef CONFIG_RATE_HW_CONTROL
if (sta)
rate_control_rate_update(sdata->local, sband, sta,
IEEE80211_RC_HT_CHANGED,
sdata->local->chan_state.conf.channel_type);
#endif
rcu_read_unlock();
}
#endif
} else {
/* update the device channel directly */
chan_state->conf.channel = chan_state->oper_channel;
}
/* XXX: shouldn't really modify cfg80211-owned data! */
ifmgd->associated->channel = chan_state->oper_channel;
ieee80211_wake_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CSA);
out:
ifmgd->flags &= ~IEEE80211_STA_CSA_RECEIVED;
mutex_unlock(&ifmgd->mtx);
}
#ifdef CONFIG_ATBM_MAC80211_NO_USE
void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success)
{
struct ieee80211_channel_state *chan_state;
struct ieee80211_sub_if_data *sdata;
struct ieee80211_if_managed *ifmgd;
sdata = vif_to_sdata(vif);
chan_state = ieee80211_get_channel_state(sdata->local, sdata);
ifmgd = &sdata->u.mgd;
trace_api_chswitch_done(sdata, success);
if (!success) {
/*
* If the channel switch was not successful, stay
* around on the old channel. We currently lack
* good handling of this situation, possibly we
* should just drop the association.
*/
chan_state->csa_channel = chan_state->oper_channel;
}
ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
}
//EXPORT_SYMBOL(ieee80211_chswitch_done);
#endif
#ifdef CONFIG_ATBM_SUPPORT_CHANSWITCH
static void ieee80211_chswitch_timer(unsigned long data)
{
struct ieee80211_sub_if_data *sdata =
(struct ieee80211_sub_if_data *) data;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
if (sdata->local->quiescing) {
set_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running);
return;
}
ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
}
#endif
/*
static void ieee80211_scan_delay_timer(unsigned long data)
{
printk("Start BG Scan\n");
// g_connetting = 0;
}
*/
#ifdef ATBM_SUPPORT_WIDTH_40M
void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
struct atbm_ieee80211_channel_sw_packed_ie *sw_packed_ie,
struct ieee80211_bss *bss,
u64 timestamp)
{
struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(sdata->local, sdata);
struct cfg80211_bss *cbss =
container_of((void *)bss, struct cfg80211_bss, priv);
struct ieee80211_channel *new_ch;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_channel_sw_ie *sw_elem = sw_packed_ie->chan_sw_ie;
struct atbm_ieee80211_ext_chansw_ie *ex_sw_elem = sw_packed_ie->ex_chan_sw_ie;
struct atbm_ieee80211_sec_chan_offs_ie *sec_chan_ie = sw_packed_ie->sec_chan_offs_ie;
enum ieee80211_band new_band = IEEE80211_NUM_BANDS;
#define CHANGE_SW_CHANNEL_BIT (1<<0)
#define CHANGE_CHANNEL_TYPE_BIT (1<<1)
u8 change = 0;
u8 new_ch_num = 0;
int new_freq;
u8 mode;
u8 count;
ASSERT_MGD_MTX(ifmgd);
if (!ifmgd->associated)
return;
if (sdata->local->scanning)
return;
/* Disregard subsequent beacons if we are already running a timer
processing a CSA */
if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
return;
if(ex_sw_elem)
{
if(
(ex_sw_elem->new_operaring_class == 112)
||
(
(ex_sw_elem->new_operaring_class>=115)
&&
(ex_sw_elem->new_operaring_class<=130)
)
)
{
new_band = IEEE80211_BAND_5GHZ;
}
else if
(
(ex_sw_elem->new_operaring_class>=81)
&&
(ex_sw_elem->new_operaring_class<=84)
)
{
new_band = IEEE80211_BAND_2GHZ;
}
new_ch_num = ex_sw_elem->new_ch_num;
mode = ex_sw_elem->mode;
count = ex_sw_elem->count;
change |= CHANGE_SW_CHANNEL_BIT;
}
else if(sw_elem)
{
new_band = cbss->channel->band;
new_ch_num = sw_elem->new_ch_num;
mode = sw_elem->mode;
count = sw_elem->count;
change |= CHANGE_SW_CHANNEL_BIT;
}
else
{
/*
*without ex_sw_elem,sw_elem. do not change the channel
*/
new_band = cbss->channel->band;
new_ch_num = channel_hw_value(chan_state->conf.channel);
mode = 0;
count = 0;
change &= ~CHANGE_SW_CHANNEL_BIT;
}
new_freq = ieee80211_channel_to_frequency(new_ch_num,new_band);
new_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED)
return;
chan_state->csa_channel = new_ch;
if(sec_chan_ie)
{
enum nl80211_channel_type prev_chantype = chan_state->conf.channel_type;
enum nl80211_channel_type new_chantype = prev_chantype;
switch(sec_chan_ie->sec_chan_offs)
{
case IEEE80211_HT_PARAM_CHA_SEC_NONE:
new_chantype = NL80211_CHAN_NO_HT;
break;
case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
new_chantype = NL80211_CHAN_HT40PLUS;
break;
case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
new_chantype = NL80211_CHAN_HT40MINUS;
break;
default:
break;
}
if(prev_chantype == new_chantype)
return;
change |= CHANGE_CHANNEL_TYPE_BIT;
ieee80211_set_channel_type(sdata->local,sdata,new_chantype);
return;
}
if(!change)
{
return;
}
#if 0
if (sdata->local->ops->channel_switch) {
/* use driver's channel switch callback */
struct ieee80211_channel_switch ch_switch;
memset(&ch_switch, 0, sizeof(ch_switch));
ch_switch.timestamp = timestamp;
if (mode) {
ch_switch.block_tx = true;
ieee80211_stop_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CSA);
}
ch_switch.channel = new_ch;
ch_switch.count =count;
ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
drv_channel_switch(sdata->local, &ch_switch);
return;
}
#endif
/* channel switch handled in software */
if (count <= 1) {
ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
} else {
if (mode)
ieee80211_stop_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CSA);
ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
atbm_mod_timer(&ifmgd->chswitch_timer,
jiffies +
msecs_to_jiffies(mode *
cbss->beacon_interval));
}
}
#else
void ieee80211_sta_process_chanswitch(struct ieee80211_sub_if_data *sdata,
struct ieee80211_channel_sw_ie *sw_elem,
struct ieee80211_bss *bss,
u64 timestamp)
{
struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(sdata->local, sdata);
struct cfg80211_bss *cbss =
container_of((void *)bss, struct cfg80211_bss, priv);
struct ieee80211_channel *new_ch;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
int new_freq = ieee80211_channel_to_frequency(sw_elem->new_ch_num,
cbss->channel->band);
ASSERT_MGD_MTX(ifmgd);
if (!ifmgd->associated)
return;
if (sdata->local->scanning)
return;
/* Disregard subsequent beacons if we are already running a timer
processing a CSA */
if (ifmgd->flags & IEEE80211_STA_CSA_RECEIVED)
return;
new_ch = ieee80211_get_channel(sdata->local->hw.wiphy, new_freq);
if (!new_ch || new_ch->flags & IEEE80211_CHAN_DISABLED)
return;
chan_state->csa_channel = new_ch;
if (sdata->local->ops->channel_switch) {
/* use driver's channel switch callback */
struct ieee80211_channel_switch ch_switch;
memset(&ch_switch, 0, sizeof(ch_switch));
ch_switch.timestamp = timestamp;
if (sw_elem->mode) {
ch_switch.block_tx = true;
ieee80211_stop_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CSA);
}
ch_switch.channel = new_ch;
ch_switch.count = sw_elem->count;
ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
drv_channel_switch(sdata->local, &ch_switch);
return;
}
/* channel switch handled in software */
if (sw_elem->count <= 1) {
ieee80211_queue_work(&sdata->local->hw, &ifmgd->chswitch_work);
} else {
if (sw_elem->mode)
ieee80211_stop_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_CSA);
ifmgd->flags |= IEEE80211_STA_CSA_RECEIVED;
atbm_mod_timer(&ifmgd->chswitch_timer,
jiffies +
msecs_to_jiffies(sw_elem->count *
cbss->beacon_interval));
}
}
#endif
#endif
static void ieee80211_handle_pwr_constr(struct ieee80211_sub_if_data *sdata,
u16 capab_info, u8 *pwr_constr_elem,
u8 pwr_constr_elem_len)
{
struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(sdata->local, sdata);
if (!(capab_info & WLAN_CAPABILITY_SPECTRUM_MGMT))
return;
/* Power constraint IE length should be 1 octet */
if (pwr_constr_elem_len != 1)
return;
if ((*pwr_constr_elem <= chan_state->conf.channel->max_power) &&
(*pwr_constr_elem != sdata->local->power_constr_level)) {
sdata->local->power_constr_level = *pwr_constr_elem;
ieee80211_hw_config(sdata->local, 0);
}
}
#ifdef CONFIG_ATBM_MAC80211_NO_USE
void ieee80211_enable_dyn_ps(struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct ieee80211_local *local = sdata->local;
struct ieee80211_bss_conf *conf = &sdata->vif.bss_conf;
WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION ||
!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS) ||
(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS));
sdata->disable_dynamic_ps = false;
conf->dynamic_ps_timeout = sdata->dynamic_ps_user_timeout;
}
//EXPORT_SYMBOL(ieee80211_enable_dyn_ps);
void ieee80211_disable_dyn_ps(struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct ieee80211_local *local = sdata->local;
struct ieee80211_bss_conf *conf = &sdata->vif.bss_conf;
WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION ||
!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS) ||
(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS));
sdata->disable_dynamic_ps = true;
conf->dynamic_ps_timeout = 0;
atbm_del_timer_sync(&sdata->dynamic_ps_timer);
ieee80211_queue_work(&local->hw,
&sdata->dynamic_ps_enable_work);
}
//EXPORT_SYMBOL(ieee80211_disable_dyn_ps);
#endif
/* powersave */
static void ieee80211_enable_ps(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_bss_conf *conf = &sdata->vif.bss_conf;
/*
* If we are scanning right now then the parameters will
* take effect when scan finishes.
*/
if (local->scanning) /* XXX: investigate this codepath */
return;
#ifdef CONFIG_ATBM_MAC80211_NO_USE
if (conf->dynamic_ps_timeout > 0 &&
!(local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_PS)) {
atbm_mod_timer(&sdata->dynamic_ps_timer, jiffies +
msecs_to_jiffies(conf->dynamic_ps_timeout));
} else {
if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
ieee80211_send_nullfunc(local, sdata, 1);
if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) &&
(local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS))
return;
conf->ps_enabled = true;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_PS);
}
#else
conf->ps_enabled = true;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_PS);
#endif
}
static void ieee80211_change_ps(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata;
/* XXX: This needs to be verified */
list_for_each_entry(sdata, &local->interfaces, list) {
atbm_printk_debug("%s:ps_allowed(%d)(%d)\n",sdata->name,sdata->ps_allowed,sdata->vif.bss_conf.ps_enabled);
if (sdata->ps_allowed) {
atbm_printk_debug("%s:ps enable\n",sdata->name);
ieee80211_enable_ps(local, sdata);
} else if (sdata->vif.bss_conf.ps_enabled) {
sdata->vif.bss_conf.ps_enabled = false;
atbm_printk_debug("%s:ps disable\n",sdata->name);
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_PS);
#ifdef CONFIG_ATBM_MAC80211_NO_USE
atbm_del_timer_sync(&sdata->dynamic_ps_timer);
atbm_cancel_work_sync(&sdata->dynamic_ps_enable_work);
#endif
}
}
}
static bool ieee80211_powersave_allowed(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *mgd = &sdata->u.mgd;
struct sta_info *sta = NULL;
bool authorized = false;
#ifdef CONFIG_ATBM_SMPS
if (!mgd->powersave)
return false;
#endif
if (mgd->broken_ap)
return false;
if (!mgd->associated)
return false;
if (!mgd->associated->beacon_ies)
return false;
if (mgd->flags & (IEEE80211_STA_BEACON_POLL |
IEEE80211_STA_CONNECTION_POLL))
return false;
#ifdef CONFIG_ATBM_STA_DYNAMIC_PS
if(sdata->traffic.current_tx_tp + sdata->traffic.current_rx_tp >= IEEE80211_KEEP_WAKEUP_TP_PER_SECOND){
atbm_printk_debug("%s:keep wakeup\n",__func__);
return false;
}
#endif
rcu_read_lock();
sta = sta_info_get(sdata, mgd->bssid);
if (sta)
authorized = test_sta_flag(sta, WLAN_STA_AUTHORIZED);
rcu_read_unlock();
return authorized;
}
/* need to hold RTNL or interface lock */
void ieee80211_recalc_ps_vif(struct ieee80211_local *local, s32 latency)
{
struct ieee80211_sub_if_data *sdata;
struct ieee80211_bss_conf *conf;
int timeout;
s32 beaconint_us;
list_for_each_entry(sdata, &local->interfaces, list) {
if (!ieee80211_sdata_running(sdata))
continue;
if (sdata->vif.type == NL80211_IFTYPE_AP) {
/* If an AP vif is found, then disable PS
* by setting the count to zero thereby setting
* ps_sdata to NULL.
*/
//count = 0;
//break;
/* XXX: I don't think I understand the above. Any ideas? */
}
if (sdata->vif.type != NL80211_IFTYPE_STATION)
continue;
if (!ieee80211_powersave_allowed(sdata)) {
sdata->ps_allowed = false;
continue;
}
conf = &sdata->vif.bss_conf;
beaconint_us = ieee80211_tu_to_usec(
sdata->vif.bss_conf.beacon_int);
#ifdef CONFIG_ATBM_MAC80211_NO_USE
#ifdef CONFIG_ATBM_PM_QOS
if (latency < 0)
latency = pm_qos_request(PM_QOS_NETWORK_LATENCY);
#else
latency = beaconint_us*2;
#endif
timeout = sdata->dynamic_ps_forced_timeout;
if (timeout < 0) {
/*
* Go to full PSM if the user configures a very low
* latency requirement.
* The 2000 second value is there for compatibility
* until the PM_QOS_NETWORK_LATENCY is configured
* with real values.
*/
if (latency > (1900 * USEC_PER_MSEC) &&
latency != (2000 * USEC_PER_SEC))
timeout = 0;
else
timeout = 100;
}
sdata->dynamic_ps_user_timeout = timeout;
if (!sdata->disable_dynamic_ps)
conf->dynamic_ps_timeout =
sdata->dynamic_ps_user_timeout;
if (beaconint_us > latency) {
sdata->ps_allowed = false;
} else {
struct ieee80211_bss *bss;
int maxslp = 1;
u8 dtimper;
bss = (void *)sdata->u.mgd.associated->priv;
dtimper = bss->dtim_period;
/* If the TIM IE is invalid, pretend the value is 1 */
if (!dtimper)
dtimper = 1;
else if (dtimper > 1)
maxslp = min_t(int, dtimper,
latency / beaconint_us);
sdata->vif.bss_conf.max_sleep_period = maxslp;
sdata->vif.bss_conf.ps_dtim_period = dtimper;
sdata->ps_allowed = true;
}
#else
timeout = (latency > 0 && latency <beaconint_us) ? latency:beaconint_us;
sdata->dynamic_ps_user_timeout = timeout;
conf->dynamic_ps_timeout = timeout;
atbm_printk_debug("%s:beaconint_us(%x)\n",__func__,beaconint_us);
{
struct ieee80211_bss *bss;
int maxslp = 1;
u8 dtimper;
bss = (void *)sdata->u.mgd.associated->priv;
dtimper = bss->dtim_period;
/* If the TIM IE is invalid, pretend the value is 1 */
if (!dtimper)
dtimper = 1;
else if (dtimper > 1)
maxslp = min_t(int, dtimper,
latency / beaconint_us);
sdata->vif.bss_conf.max_sleep_period = maxslp;
sdata->vif.bss_conf.ps_dtim_period = dtimper;
sdata->ps_allowed = true;
}
#endif
}
ieee80211_change_ps(local);
}
void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency)
{
struct ieee80211_sub_if_data *sdata;
struct ieee80211_work *wk;
if (!(local->hw.flags & IEEE80211_HW_SUPPORTS_PS)) {
list_for_each_entry(sdata, &local->interfaces, list)
sdata->ps_allowed = false;
return;
}
if (!list_empty(&local->work_list)) {
int busy_work = 0;
list_for_each_entry(wk, &local->work_list, list){
#ifdef CONFIG_ATBM_STA_DYNAMIC_PS
if(wk->type != IEEE80211_WORK_PS_RECAL){
wk->sdata->ps_allowed = false;
busy_work++;
}
#else
busy_work++;
#endif
}
if(busy_work){
atbm_printk_err("%s:work busy\n",__func__);
goto change;
}
}
ieee80211_recalc_ps_vif(local,latency);
return;
change:
ieee80211_change_ps(local);
}
#ifdef CONFIG_ATBM_MAC80211_NO_USE
void ieee80211_dynamic_ps_disable_work(struct atbm_work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
container_of(work, struct ieee80211_sub_if_data,
dynamic_ps_disable_work);
if (sdata->vif.bss_conf.ps_enabled) {
sdata->vif.bss_conf.ps_enabled = false;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_PS);
}
// XXX: with queue patches this should be updated:
ieee80211_wake_queues_by_reason(&sdata->local->hw,
IEEE80211_QUEUE_STOP_REASON_PS);
}
void ieee80211_dynamic_ps_enable_work(struct atbm_work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
container_of(work, struct ieee80211_sub_if_data,
dynamic_ps_enable_work);
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd;
unsigned long flags;
int q;
/* can only happen when PS was just disabled anyway */
if (!sdata->ps_allowed)
return;
ifmgd = &sdata->u.mgd;
if (sdata->vif.bss_conf.ps_enabled)
return;
if (!sdata->disable_dynamic_ps &&
sdata->vif.bss_conf.dynamic_ps_timeout > 0) {
/* don't enter PS if TX frames are pending */
if (drv_tx_frames_pending(local)) {
atbm_mod_timer(&sdata->dynamic_ps_timer, jiffies +
msecs_to_jiffies(
sdata->vif.bss_conf.dynamic_ps_timeout));
return;
}
/*
* transmission can be stopped by others which leads to
* dynamic_ps_timer expiry. Postpone the ps timer if it
* is not the actual idle state.
*/
spin_lock_irqsave(&local->queue_stop_reason_lock, flags);
for (q = 0; q < local->hw.queues; q++) {
if (local->queue_stop_reasons[q]) {
spin_unlock_irqrestore(&local->queue_stop_reason_lock,
flags);
atbm_mod_timer(&sdata->dynamic_ps_timer, jiffies +
msecs_to_jiffies(
sdata->vif.bss_conf.dynamic_ps_timeout));
return;
}
}
spin_unlock_irqrestore(&local->queue_stop_reason_lock, flags);
}
if ((local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) &&
(!(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED))) {
netif_tx_stop_all_queues(sdata->dev);
if (drv_tx_frames_pending(local))
atbm_mod_timer(&sdata->dynamic_ps_timer, jiffies +
msecs_to_jiffies(
sdata->vif.bss_conf.dynamic_ps_timeout));
else {
ieee80211_send_nullfunc(local, sdata, 1);
/* Flush to get the tx status of nullfunc frame */
drv_flush(local, sdata, false);
}
}
if (!((local->hw.flags & IEEE80211_HW_REPORTS_TX_ACK_STATUS) &&
(local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)) ||
(ifmgd->flags & IEEE80211_STA_NULLFUNC_ACKED)) {
ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED;
sdata->vif.bss_conf.ps_enabled = true;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_PS);
}
if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
netif_tx_wake_all_queues(sdata->dev);
}
void ieee80211_dynamic_ps_timer(unsigned long data)
{
struct ieee80211_sub_if_data *sdata = (void *) data;
struct ieee80211_local *local = sdata->local;
if (local->quiescing || local->suspended)
return;
ieee80211_queue_work(&local->hw, &sdata->dynamic_ps_enable_work);
}
#endif
#if 0
void ieee80211_scan_delay(unsigned long data)
{
}
#endif
#ifdef CONFIG_ATBM_SUPPORT_P2P
#define MAX_P2P_NOA_DESC 4
/* TODO: check if not defined already */
struct noa_desc {
u8 count;
__le32 duration;
__le32 interval;
__le32 start;
}__packed;
struct noa_attr {
u8 index;
u8 oppPsCTWindow;
struct noa_desc dsc[MAX_P2P_NOA_DESC];
}__packed;
struct p2p_attr {
u8 type;
__le16 len;
u8 data[0];
}__packed;
static void ieee80211_sta_p2p_noa_check(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
u8 *p2p_ie, size_t p2p_ie_len)
{
struct ieee80211_bss_conf *conf = &sdata->vif.bss_conf;
struct cfg80211_p2p_ps p2p_ps = {0};
struct p2p_attr *attr;
struct noa_attr *noa_attr = NULL;
u8 *ptr;
u16 len = 0, noa_len = 0;
int i;
size_t left;
size_t elen;
if (!p2p_ie)
goto out;
ptr = p2p_ie;
left = p2p_ie_len;
while (left >= 2) {
elen = *++ptr;
ptr++;
left -= 2;
if (elen > left)
break;
ptr += 4;
/* Find Noa attr */
for (i = 0; i < elen-4;) {
attr = (struct p2p_attr *) &ptr[i];
len = __le32_to_cpu(attr->len);
switch (attr->type) {
case 0x0C:
noa_attr = (struct noa_attr *) &attr->data[0];
noa_len = len;
break;
default:
break;
}
if (noa_attr)
break;
i = i + len + 3;
}
left -= elen;
ptr += elen - 4;
if (!noa_attr)
/* parse next P2P IE if any left */
continue;
/* Get NOA settings */
p2p_ps.opp_ps = !!(noa_attr->oppPsCTWindow & BIT(7));
p2p_ps.ctwindow = (noa_attr->oppPsCTWindow & (~BIT(7)));
if (noa_len >= (sizeof(struct noa_desc) + 2)) {
/* currently FW API supports only one descriptor */
p2p_ps.count = noa_attr->dsc[0].count;
p2p_ps.start =
__le32_to_cpu(noa_attr->dsc[0].start);
p2p_ps.duration =
__le32_to_cpu(noa_attr->dsc[0].duration);
p2p_ps.interval =
__le32_to_cpu(noa_attr->dsc[0].interval);
}
/* do not continue if one descriptor found */
break;
}
out:
/* Notify driver if change is required */
if (memcmp(&conf->p2p_ps, &p2p_ps, sizeof(p2p_ps))) {
/* do not change legacy ps settings */
p2p_ps.legacy_ps = conf->p2p_ps.legacy_ps;
conf->p2p_ps = p2p_ps;
atbm_printk_debug("ieee80211_sta_p2p_noa_check\n");
if (local->hw.flags & IEEE80211_HW_SUPPORTS_P2P_PS)
ieee80211_bss_info_change_notify(sdata,
BSS_CHANGED_P2P_PS);
}
}
/* P2P */
static void ieee80211_sta_p2p_params(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
u8 *p2p_ie, size_t p2p_ie_len)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
if (!p2p_ie) {
if (ifmgd->p2p_last_ie_len) {
memset(ifmgd->p2p_last_ie, 0x00,
sizeof(ifmgd->p2p_last_ie));
ifmgd->p2p_last_ie_len = 0;
ieee80211_sta_p2p_noa_check(local, sdata, p2p_ie,
p2p_ie_len);
return;
}
}
if (p2p_ie_len != ifmgd->p2p_last_ie_len ||
memcmp(p2p_ie, ifmgd->p2p_last_ie, p2p_ie_len)) {
/* BSS_CHANGED_P2P_PS */
ieee80211_sta_p2p_noa_check(local, sdata, p2p_ie,
p2p_ie_len);
}
memcpy(ifmgd->p2p_last_ie, p2p_ie, p2p_ie_len);
ifmgd->p2p_last_ie_len = p2p_ie_len;
}
#endif
/* MLME */
static void ieee80211_sta_wmm_params(struct ieee80211_local *local,
struct ieee80211_sub_if_data *sdata,
u8 *wmm_param, size_t wmm_param_len)
{
struct ieee80211_tx_queue_params params;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
size_t left;
int count;
u8 *pos, uapsd_queues = 0;
if (!local->ops->conf_tx)
return;
if (local->hw.queues < IEEE80211_NUM_ACS)
return;
if (!wmm_param)
return;
if (wmm_param_len < 8 || wmm_param[5] /* version */ != 1)
return;
if (ifmgd->flags & IEEE80211_STA_UAPSD_ENABLED)
uapsd_queues = local->uapsd_queues;
count = wmm_param[6] & 0x0f;
if (count == ifmgd->wmm_last_param_set)
return;
ifmgd->wmm_last_param_set = count;
pos = wmm_param + 8;
left = wmm_param_len - 8;
memset(&params, 0, sizeof(params));
local->wmm_acm = 0;
#ifdef CONFIG_ATBM_APOLLO_TESTMODE
local->wmm_admitted_ups = 0;
#endif /*CONFIG_ATBM_APOLLO_TESTMODE*/
for (; left >= 4; left -= 4, pos += 4) {
int aci = (pos[0] >> 5) & 0x03;
int acm = (pos[0] >> 4) & 0x01;
bool uapsd = false;
int queue;
switch (aci) {
case 1: /* AC_BK */
queue = 3;
if (acm)
local->wmm_acm |= BIT(1) | BIT(2); /* BK/- */
if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BK)
uapsd = true;
break;
case 2: /* AC_VI */
queue = 1;
if (acm)
local->wmm_acm |= BIT(4) | BIT(5); /* CL/VI */
if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VI)
uapsd = true;
break;
case 3: /* AC_VO */
queue = 0;
if (acm)
local->wmm_acm |= BIT(6) | BIT(7); /* VO/NC */
if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_VO)
uapsd = true;
break;
case 0: /* AC_BE */
default:
queue = 2;
if (acm)
local->wmm_acm |= BIT(0) | BIT(3); /* BE/EE */
if (uapsd_queues & IEEE80211_WMM_IE_STA_QOSINFO_AC_BE)
uapsd = true;
break;
}
params.aifs = pos[0] & 0x0f;
params.cw_max = ecw2cw((pos[1] & 0xf0) >> 4);
params.cw_min = ecw2cw(pos[1] & 0x0f);
params.txop = get_unaligned_le16(pos + 2);
params.uapsd = uapsd;
#ifdef CONFIG_MAC80211_ATBM_VERBOSE_DEBUG
wiphy_debug(local->hw.wiphy,
"WMM queue=%d aci=%d acm=%d aifs=%d "
"cWmin=%d cWmax=%d txop=%d uapsd=%d\n",
queue, aci, acm,
params.aifs, params.cw_min, params.cw_max,
params.txop, params.uapsd);
#endif
sdata->tx_conf[queue] = params;
if (drv_conf_tx(local, sdata, queue, &params))
atbm_printk_debug("failed to set TX queue parameters for queue %d\n",
queue);
}
/* enable WMM or activate new settings */
sdata->vif.bss_conf.qos = true;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_QOS);
}
static u32 ieee80211_handle_bss_capability(struct ieee80211_sub_if_data *sdata,
u16 capab, bool erp_valid, u8 erp)
{
struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(sdata->local, sdata);
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
u32 changed = 0;
bool use_protection;
bool use_short_preamble;
bool use_short_slot;
if (erp_valid) {
use_protection = (erp & WLAN_ERP_USE_PROTECTION) != 0;
use_short_preamble = (erp & WLAN_ERP_BARKER_PREAMBLE) == 0;
} else {
use_protection = false;
use_short_preamble = !!(capab & WLAN_CAPABILITY_SHORT_PREAMBLE);
}
use_short_slot = !!(capab & WLAN_CAPABILITY_SHORT_SLOT_TIME);
if (chan_state->conf.channel->band == IEEE80211_BAND_5GHZ)
use_short_slot = true;
if (use_protection != bss_conf->use_cts_prot) {
bss_conf->use_cts_prot = use_protection;
changed |= BSS_CHANGED_ERP_CTS_PROT;
}
if (use_short_preamble != bss_conf->use_short_preamble) {
bss_conf->use_short_preamble = use_short_preamble;
changed |= BSS_CHANGED_ERP_PREAMBLE;
}
if (use_short_slot != bss_conf->use_short_slot) {
bss_conf->use_short_slot = use_short_slot;
changed |= BSS_CHANGED_ERP_SLOT;
}
return changed;
}
static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
struct cfg80211_bss *cbss,
u32 bss_info_changed)
{
struct ieee80211_bss *bss = (void *)cbss->priv;
struct ieee80211_local *local = sdata->local;
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0))
const struct cfg80211_bss_ies *ies;
#endif
bss_info_changed |= BSS_CHANGED_ASSOC;
/* set timing information */
bss_conf->beacon_int = cbss->beacon_interval;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0))
rcu_read_lock();
ies = rcu_dereference(cbss->ies);
bss_conf->timestamp = ies->tsf;
rcu_read_unlock();
#else
bss_conf->timestamp = cbss->tsf;
#endif
atbm_wifi_status_set(1);
bss_info_changed |= BSS_CHANGED_BEACON_INT;
bss_info_changed |= ieee80211_handle_bss_capability(sdata,
cbss->capability, bss->has_erp_value, bss->erp_value);
sdata->u.mgd.beacon_timeout = usecs_to_jiffies(ieee80211_tu_to_usec(
IEEE80211_BEACON_LOSS_COUNT * bss_conf->beacon_int));
sdata->u.mgd.associated = cbss;
memcpy(sdata->u.mgd.bssid, cbss->bssid, ETH_ALEN);
sdata->u.mgd.flags |= IEEE80211_STA_RESET_SIGNAL_AVE;
/* just to be sure */
sdata->u.mgd.flags &= ~(IEEE80211_STA_CONNECTION_POLL |
IEEE80211_STA_BEACON_POLL);
ieee80211_led_assoc(local, 1);
if (local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD)
bss_conf->dtim_period = bss->dtim_period;
else
bss_conf->dtim_period = 0;
bss_conf->assoc = 1;
/*
* For now just always ask the driver to update the basic rateset
* when we have associated, we aren't checking whether it actually
* changed or not.
*/
bss_info_changed |= BSS_CHANGED_BASIC_RATES;
/* And the BSSID changed - we're associated now */
bss_info_changed |= BSS_CHANGED_BSSID;
/* Tell the driver to monitor connection quality (if supported) */
if ((local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI) &&
bss_conf->cqm_rssi_thold)
bss_info_changed |= BSS_CHANGED_CQM;
/* Enable ARP filtering */
if (bss_conf->arp_filter_enabled != sdata->arp_filter_state) {
bss_conf->arp_filter_enabled = sdata->arp_filter_state;
bss_info_changed |= BSS_CHANGED_ARP_FILTER;
}
#ifdef IPV6_FILTERING
/* Enable NDP filtering */
if (bss_conf->ndp_filter_enabled != sdata->ndp_filter_state) {
bss_conf->ndp_filter_enabled = sdata->ndp_filter_state;
bss_info_changed |= BSS_CHANGED_NDP_FILTER;
}
#endif /*IPV6_FILTERING*/
ieee80211_bss_info_change_notify(sdata, bss_info_changed);
mutex_lock(&local->iflist_mtx);
ieee80211_recalc_ps(local, -1);
#ifdef CONFIG_ATBM_SMPS
ieee80211_recalc_smps(local);
#endif
mutex_unlock(&local->iflist_mtx);
netif_tx_start_all_queues(sdata->dev);
netif_carrier_on(sdata->dev);
ieee80211_medium_traffic_start(sdata);
}
static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
bool remove_sta, bool tx)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
u32 changed = 0, config_changed = 0;
u8 bssid[ETH_ALEN];
ASSERT_MGD_MTX(ifmgd);
if (WARN_ON(!ifmgd->associated))
return;
atbm_wifi_status_set(0);
memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
mutex_lock(&local->mtx);
ieee80211_cancle_connecting_work(sdata,bssid,false);
mutex_unlock(&local->mtx);
ifmgd->associated = NULL;
synchronize_rcu();
memset(ifmgd->bssid, 0, ETH_ALEN);
/*
* we need to commit the associated = NULL change because the
* scan code uses that to determine whether this iface should
* go to/wake up from powersave or not -- and could otherwise
* wake the queues erroneously.
*/
smp_mb();
/*
* Thus, we can only afterwards stop the queues -- to account
* for the case where another CPU is finishing a scan at this
* time -- we don't want the scan code to enable queues.
*/
netif_tx_stop_all_queues(sdata->dev);
netif_carrier_off(sdata->dev);
ieee80211_medium_traffic_concle(sdata);
mutex_lock(&local->sta_mtx);
sta = sta_info_get(sdata, bssid);
if (sta) {
set_sta_flag(sta, WLAN_STA_BLOCK_BA);
ieee80211_sta_tear_down_BA_sessions(sta, tx);
}
mutex_unlock(&local->sta_mtx);
changed |= ieee80211_reset_erp_info(sdata);
ieee80211_led_assoc(local, 0);
changed |= BSS_CHANGED_ASSOC;
sdata->vif.bss_conf.assoc = false;
ieee80211_set_wmm_default(sdata);
/* channel(_type) changes are handled by ieee80211_hw_config */
WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT));
/* on the next assoc, re-program HT parameters */
sdata->ht_opmode_valid = false;
local->power_constr_level = 0;
#ifdef CONFIG_ATBM_MAC80211_NO_USE
atbm_del_timer_sync(&sdata->dynamic_ps_timer);
atbm_cancel_work_sync(&sdata->dynamic_ps_enable_work);
#endif
if (sdata->vif.bss_conf.ps_enabled) {
sdata->vif.bss_conf.ps_enabled = false;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_PS);
}
sdata->ps_allowed = false;
ieee80211_hw_config(local, config_changed);
/* Disable ARP filtering */
if (sdata->vif.bss_conf.arp_filter_enabled) {
sdata->vif.bss_conf.arp_filter_enabled = false;
changed |= BSS_CHANGED_ARP_FILTER;
}
#ifdef IPV6_FILTERING
/* Disable NDP filtering */
if (sdata->vif.bss_conf.ndp_filter_enabled) {
sdata->vif.bss_conf.ndp_filter_enabled = false;
changed |= BSS_CHANGED_NDP_FILTER;
}
#endif /*IPV6_FILTERING*/
/* The BSSID (not really interesting) and HT changed */
changed |= BSS_CHANGED_BSSID | BSS_CHANGED_HT;
ieee80211_bss_info_change_notify(sdata, changed);
/* remove AP and TDLS peers */
if (remove_sta)
sta_info_flush(local, sdata);
#ifdef CONFIG_MAC80211_BRIDGE
ieee80211_brigde_flush(sdata);
#endif //CONFIG_MAC80211_BRIDGE
#ifdef CONFIG_ATBM_MAC80211_NO_USE
atbm_del_timer_sync(&sdata->u.mgd.conn_mon_timer);
atbm_del_timer_sync(&sdata->u.mgd.bcn_mon_timer);
atbm_del_timer_sync(&sdata->u.mgd.timer);
#endif
#ifdef CONFIG_ATBM_SUPPORT_CHANSWITCH
atbm_del_timer_sync(&sdata->u.mgd.chswitch_timer);
#endif
}
struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw,
struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct sk_buff *skb;
const u8 *ssid;
if (WARN_ON(sdata->vif.type != NL80211_IFTYPE_STATION))
return NULL;
ASSERT_MGD_MTX(ifmgd);
if (!ifmgd->associated)
return NULL;
ssid = ieee80211_bss_get_ie(ifmgd->associated, ATBM_WLAN_EID_SSID);
skb = ieee80211_build_probe_req(sdata, ifmgd->associated->bssid,
(u32) -1, ssid + 2, ssid[1],
NULL, 0, true);
return skb;
}
//EXPORT_SYMBOL(ieee80211_ap_probereq_get);
static void __ieee80211_connection_loss(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
u8 bssid[ETH_ALEN];
mutex_lock(&ifmgd->mtx);
if (!ifmgd->associated) {
mutex_unlock(&ifmgd->mtx);
return;
}
memcpy(bssid, ifmgd->associated->bssid, ETH_ALEN);
atbm_printk_always("<WARNING>%s:AP %pM lost.....\n",
sdata->name, bssid);
ieee80211_set_disassoc(sdata, true, true);
mutex_unlock(&ifmgd->mtx);
/*
* must be outside lock due to cfg80211,
* but that's not a problem.
*/
ieee80211_send_deauth_disassoc(sdata, bssid,
IEEE80211_STYPE_DEAUTH,
WLAN_REASON_DISASSOC_DUE_TO_INACTIVITY,
NULL, true);
mutex_lock(&local->mtx);
ieee80211_recalc_idle(local);
mutex_unlock(&local->mtx);
}
void ieee80211_beacon_connection_loss_work(struct atbm_work_struct *work)
{
struct ieee80211_sub_if_data *sdata =
container_of(work, struct ieee80211_sub_if_data,
u.mgd.beacon_connection_loss_work);
if(sdata->local->adaptive_started == true){
atbm_printk_debug("adaptive_started! ieee80211_beacon_connection_loss_work stop");
return;
}
if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
{
__ieee80211_connection_loss(sdata);
}
#ifdef CONFIG_ATBM_MAC80211_NO_USE
else
ieee80211_mgd_probe_ap(sdata, true);
#endif
}
#ifdef CONFIG_ATBM_MAC80211_NO_USE
void ieee80211_beacon_loss(struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct ieee80211_hw *hw = &sdata->local->hw;
trace_api_beacon_loss(sdata);
WARN_ON(hw->flags & IEEE80211_HW_CONNECTION_MONITOR);
ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work);
}
//EXPORT_SYMBOL(ieee80211_beacon_loss);
#endif
void ieee80211_connection_loss(struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
struct ieee80211_hw *hw = &sdata->local->hw;
trace_api_connection_loss(sdata);
WARN_ON(!(hw->flags & IEEE80211_HW_CONNECTION_MONITOR));
ieee80211_queue_work(hw, &sdata->u.mgd.beacon_connection_loss_work);
}
//EXPORT_SYMBOL(ieee80211_connection_loss);
static enum rx_mgmt_action __must_check
ieee80211_rx_mgmt_deauth(struct ieee80211_sub_if_data *sdata,
struct atbm_ieee80211_mgmt *mgmt, size_t len)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
const u8 *bssid = NULL;
u16 reason_code;
if (len < 24 + 2)
return RX_MGMT_NONE;
ASSERT_MGD_MTX(ifmgd);
bssid = ifmgd->associated->bssid;
reason_code = le16_to_cpu(mgmt->u.deauth.reason_code);
atbm_printk_always("%s: deauthenticated from %pM (Reason: %u)\n",
sdata->name, bssid, reason_code);
#ifdef CONFIG_MAC80211_ATBM_ROAMING_CHANGES
sdata->queues_locked = 0;
#endif
ieee80211_set_disassoc(sdata, true, false);
mutex_lock(&sdata->local->mtx);
ieee80211_free_authen_bss(sdata);
ieee80211_recalc_idle(sdata->local);
mutex_unlock(&sdata->local->mtx);
return RX_MGMT_CFG80211_DEAUTH;
}
static enum rx_mgmt_action __must_check
ieee80211_rx_mgmt_disassoc(struct ieee80211_sub_if_data *sdata,
struct atbm_ieee80211_mgmt *mgmt, size_t len)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
u16 reason_code;
if (len < 24 + 2)
return RX_MGMT_NONE;
ASSERT_MGD_MTX(ifmgd);
if (WARN_ON(!ifmgd->associated))
return RX_MGMT_NONE;
if (WARN_ON(memcmp(ifmgd->associated->bssid, mgmt->sa, ETH_ALEN)))
return RX_MGMT_NONE;
reason_code = le16_to_cpu(mgmt->u.disassoc.reason_code);
atbm_printk_always("%s: disassociated from %pM (Reason: %u)\n",
sdata->name, mgmt->sa, reason_code);
ieee80211_set_disassoc(sdata, true, false);
mutex_lock(&sdata->local->mtx);
ieee80211_free_authen_bss(sdata);
ieee80211_recalc_idle(sdata->local);
mutex_unlock(&sdata->local->mtx);
return RX_MGMT_CFG80211_DISASSOC;
}
static bool ieee80211_assoc_success(struct ieee80211_work *wk,
struct atbm_ieee80211_mgmt *mgmt, size_t len)
{
struct ieee80211_sub_if_data *sdata = wk->sdata;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_local *local = sdata->local;
struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(local, sdata);
struct ieee80211_supported_band *sband;
struct sta_info *sta;
struct cfg80211_bss *cbss = wk->assoc.bss;
u8 *pos;
u32 rates, basic_rates;
u16 capab_info, aid;
struct ieee802_atbm_11_elems elems;
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
u32 changed = 0;
int i, j, err;
bool have_higher_than_11mbit = false;
u16 ap_ht_cap_flags;
int min_rate = INT_MAX, min_rate_index = -1;
/* AssocResp and ReassocResp have identical structure */
aid = le16_to_cpu(mgmt->u.assoc_resp.aid);
capab_info = le16_to_cpu(mgmt->u.assoc_resp.capab_info);
if ((aid & (BIT(15) | BIT(14))) != (BIT(15) | BIT(14)))
atbm_printk_mgmt(
"%s: invalid AID value 0x%x; bits 15:14 not set\n",
sdata->name, aid);
aid &= ~(BIT(15) | BIT(14));
ifmgd->broken_ap = false;
if (aid == 0 || aid > IEEE80211_MAX_AID) {
atbm_printk_err(
"%s: invalid AID value %d\n",
sdata->name, aid);
aid = 0;
ifmgd->broken_ap = true;
}
pos = mgmt->u.assoc_resp.variable;
ieee802_11_parse_elems(pos, len - (pos - (u8 *) mgmt), &elems);
if (!elems.supp_rates) {
atbm_printk_err("%s: no SuppRates element in AssocResp\n",
sdata->name);
// return false;
}
ifmgd->aid = aid;
mutex_lock(&sdata->local->sta_mtx);
/*
* station info was already allocated and inserted before
* the association and should be available to us
*/
sta = sta_info_get_rx(sdata, cbss->bssid);
if (WARN_ON(!sta)) {
mutex_unlock(&sdata->local->sta_mtx);
return false;
}
set_sta_flag(sta, WLAN_STA_AUTH);
set_sta_flag(sta, WLAN_STA_ASSOC);
set_sta_flag(sta, WLAN_STA_ASSOC_AP);
if (!(ifmgd->flags & IEEE80211_STA_CONTROL_PORT))
set_sta_flag(sta, WLAN_STA_AUTHORIZED);
rates = 0;
basic_rates = 0;
sband = local->hw.wiphy->bands[wk->chan->band];
for (i = 0; i < elems.supp_rates_len; i++) {
int rate = (elems.supp_rates[i] & 0x7f) * 5;
bool is_basic = !!(elems.supp_rates[i] & 0x80);
if (rate > 110)
have_higher_than_11mbit = true;
for (j = 0; j < sband->n_bitrates; j++) {
if (sband->bitrates[j].bitrate == rate) {
rates |= BIT(j);
if (is_basic)
basic_rates |= BIT(j);
if (rate < min_rate) {
min_rate = rate;
min_rate_index = j;
}
break;
}
}
}
for (i = 0; i < elems.ext_supp_rates_len; i++) {
int rate = (elems.ext_supp_rates[i] & 0x7f) * 5;
bool is_basic = !!(elems.ext_supp_rates[i] & 0x80);
if (rate > 110)
have_higher_than_11mbit = true;
for (j = 0; j < sband->n_bitrates; j++) {
if (sband->bitrates[j].bitrate == rate) {
rates |= BIT(j);
if (is_basic)
basic_rates |= BIT(j);
if (rate < min_rate) {
min_rate = rate;
min_rate_index = j;
}
break;
}
}
}
/*
* some buggy APs don't advertise basic_rates. use the lowest
* supported rate instead.
*/
if (unlikely(!basic_rates) && min_rate_index >= 0) {
atbm_printk_err( "%s: No basic rates in AssocResp. "
"Using min supported rate instead.\n", sdata->name);
basic_rates = BIT(min_rate_index);
}
sta->sta.supp_rates[wk->chan->band] = rates;
sdata->vif.bss_conf.basic_rates = basic_rates;
/* cf. IEEE 802.11 9.2.12 */
if (wk->chan->band == IEEE80211_BAND_2GHZ &&
have_higher_than_11mbit)
sdata->flags |= IEEE80211_SDATA_OPERATING_GMODE;
else
sdata->flags &= ~IEEE80211_SDATA_OPERATING_GMODE;
//printk("%s:sssht_cap_elem(%p),ifmgd->flags(%x),time(%ld) ms\n",__func__,elems.ht_cap_elem,ifmgd->flags & IEEE80211_STA_DISABLE_11N,jiffies_to_msecs(EndTime-StartTime));
if (elems.ht_cap_elem && !(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
elems.ht_cap_elem, &sta->sta.ht_cap);
ap_ht_cap_flags = sta->sta.ht_cap.cap;
#ifndef CONFIG_RATE_HW_CONTROL
rate_control_rate_init(sta);
#endif
if (ifmgd->flags & IEEE80211_STA_MFP_ENABLED)
set_sta_flag(sta, WLAN_STA_MFP);
if (elems.wmm_param)
set_sta_flag(sta, WLAN_STA_WME);
/* sta_info_reinsert will also unlock the mutex lock */
err = sta_info_reinsert(sta);
sta = NULL;
if (err) {
atbm_printk_err( "%s: failed to insert STA entry for"
" the AP (error %d)\n", sdata->name, err);
return false;
}
/*
* Always handle WMM once after association regardless
* of the first value the AP uses. Setting -1 here has
* that effect because the AP values is an unsigned
* 4-bit value.
*/
ifmgd->wmm_last_param_set = -1;
if (elems.wmm_param)
ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
elems.wmm_param_len);
else
ieee80211_set_wmm_default(sdata);
chan_state->oper_channel = wk->chan;
if (elems.ht_info_elem && elems.wmm_param &&
(sdata->local->hw.queues >= 4) &&
!(ifmgd->flags & IEEE80211_STA_DISABLE_11N))
changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
cbss->bssid, ap_ht_cap_flags,
false);
/* set AID and assoc capability,
* ieee80211_set_associated() will tell the driver */
bss_conf->aid = aid;
bss_conf->assoc_capability = capab_info;
ieee80211_set_associated(sdata, cbss, changed);
#ifdef CONFIG_ATBM_SUPPORT_P2P
/*
*process p2p ie ,and set p2p power save params:CTWindows,and NoA;
*/
while(sdata->vif.p2p)
{
if(!(elems.p2p_ie&&elems.p2p_ie_len))
{
atbm_printk_err( "is p2p station,but p2p go do not send p2p ie\n");
break;
}
ieee80211_sta_p2p_params(local, sdata, elems.p2p_ie,
elems.p2p_ie_len);
break;
}
#endif
#ifdef CONFIG_ATBM_4ADDR
/*
* If we're using 4-addr mode, let the AP know that we're
* doing so, so that it can create the STA VLAN on its side
*/
if (ifmgd->use_4addr)
ieee80211_send_4addr_nullfunc(local, sdata);
#endif
/*
* Start timer to probe the connection to the AP now.
* Also start the timer that will detect beacon loss.
*/
#ifdef CONFIG_ATBM_MAC80211_NO_USE
ieee80211_sta_rx_notify(sdata, (struct ieee80211_hdr *)mgmt);
ieee80211_sta_reset_beacon_monitor(sdata);
#endif
return true;
}
static void ieee80211_rx_bss_info(struct ieee80211_sub_if_data *sdata,
struct atbm_ieee80211_mgmt *mgmt,
size_t len,
struct ieee80211_rx_status *rx_status,
struct ieee802_atbm_11_elems *elems,
bool beacon)
{
struct ieee80211_local *local = sdata->local;
int freq;
struct ieee80211_bss *bss;
struct ieee80211_channel *channel;
bool need_ps = false;
struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(local, sdata);
if (sdata->u.mgd.associated) {
bss = (void *)sdata->u.mgd.associated->priv;
/* not previously set so we may need to recalc */
need_ps = !bss->dtim_period;
}
if (elems->ds_params && elems->ds_params_len == 1)
freq = ieee80211_channel_to_frequency(elems->ds_params[0],
rx_status->band);
else
freq = rx_status->freq;
channel = ieee80211_get_channel(local->hw.wiphy, freq);
if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
return;
bss = ieee80211_bss_info_update(local, rx_status, mgmt, len, elems,
channel, beacon);
if (bss)
ieee80211_rx_bss_put(local, bss);
if (!sdata->u.mgd.associated)
return;
if (need_ps) {
mutex_lock(&local->iflist_mtx);
ieee80211_recalc_ps(local, -1);
mutex_unlock(&local->iflist_mtx);
}
//add by wp , AP channel change we need deauth
if(/*(sdata->u.mgd.associated) && */
(channel_hw_value(chan_state->conf.channel) != channel_hw_value(channel))){
atbm_printk_err("rx_bss_info channel change %d,deauth it [%pM][%pM][%pM][%x] seq=%d\n",channel_hw_value(channel),
mgmt->da,mgmt->sa,mgmt->bssid,mgmt->frame_control,mgmt->seq_ctrl);
if(elems->ssid&&elems->ssid_len){
u8 *ssid = atbm_kzalloc(elems->ssid_len+1, GFP_KERNEL);
if(ssid){
memcpy(ssid,elems->ssid,elems->ssid_len);
ssid[elems->ssid_len] = 0;
atbm_printk_err("%s:channel change ssid(%s)\n",__func__,ssid);
atbm_kfree(ssid);
}
}
ieee80211_connection_loss(&sdata->vif);
return;
}
#ifdef CONFIG_ATBM_SUPPORT_CHANSWITCH
if (elems->ch_switch_elem && (elems->ch_switch_elem_len == 3) &&
(memcmp(mgmt->bssid, sdata->u.mgd.associated->bssid,
ETH_ALEN) == 0)) {
#ifndef ATBM_SUPPORT_WIDTH_40M
struct ieee80211_channel_sw_ie *sw_elem =
(struct ieee80211_channel_sw_ie *)elems->ch_switch_elem;
ieee80211_sta_process_chanswitch(sdata, sw_elem,
bss, rx_status->mactime);
#else
struct atbm_ieee80211_channel_sw_packed_ie sw_packed_ie = {
.chan_sw_ie = NULL,
.ex_chan_sw_ie = NULL,
.sec_chan_offs_ie = NULL,
};
sw_packed_ie.chan_sw_ie = (struct ieee80211_channel_sw_ie *)elems->ch_switch_elem;
ieee80211_sta_process_chanswitch(sdata,
&sw_packed_ie,
bss,
rx_status->mactime);
#endif
}
#endif
}
static void ieee80211_rx_mgmt_probe_resp(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb)
{
struct atbm_ieee80211_mgmt *mgmt = (void *)skb->data;
struct ieee80211_if_managed *ifmgd;
struct ieee80211_rx_status *rx_status = (void *) skb->cb;
size_t baselen, len = skb->len;
struct ieee802_atbm_11_elems elems;
ifmgd = &sdata->u.mgd;
ASSERT_MGD_MTX(ifmgd);
if (memcmp(mgmt->da, sdata->vif.addr, ETH_ALEN))
return; /* ignore ProbeResp to foreign address */
baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
if (baselen > len)
return;
ieee802_11_parse_elems(mgmt->u.probe_resp.variable, len - baselen,
&elems);
ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems, false);
#ifdef CONFIG_ATBM_MAC80211_NO_USE
if (ifmgd->associated &&
memcmp(mgmt->bssid, ifmgd->associated->bssid, ETH_ALEN) == 0)
ieee80211_reset_ap_probe(sdata);
#endif
}
/*
* This is the canonical list of information elements we care about,
* the filter code also gives us all changes to the Microsoft OUI
* (00:50:F2) vendor IE which is used for WMM which we need to track.
*
* We implement beacon filtering in software since that means we can
* avoid processing the frame here and in cfg80211, and userspace
* will not be able to tell whether the hardware supports it or not.
*
* XXX: This list needs to be dynamic -- userspace needs to be able to
* add items it requires. It also needs to be able to tell us to
* look out for other vendor IEs.
*/
static const u64 care_about_ies =
(1ULL << ATBM_WLAN_EID_COUNTRY) |
(1ULL << ATBM_WLAN_EID_ERP_INFO) |
(1ULL << ATBM_WLAN_EID_CHANNEL_SWITCH) |
(1ULL << ATBM_WLAN_EID_PWR_CONSTRAINT) |
(1ULL << ATBM_WLAN_EID_HT_CAPABILITY) |
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 10, 0))
(1ULL <<WLAN_EID_HT_OPERATION);
#else
(1ULL << ATBM_WLAN_EID_HT_INFORMATION);
#endif
static void ieee80211_rx_mgmt_beacon(struct ieee80211_sub_if_data *sdata,
struct atbm_ieee80211_mgmt *mgmt,
size_t len,
struct ieee80211_rx_status *rx_status)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
#ifdef CONFIG_ATBM_MAC80211_NO_USE
struct ieee80211_bss_conf *bss_conf = &sdata->vif.bss_conf;
#endif
size_t baselen;
struct ieee802_atbm_11_elems elems;
struct ieee80211_local *local = sdata->local;
struct ieee80211_channel_state *chan_state = ieee80211_get_channel_state(local, sdata);
u32 changed = 0;
bool erp_valid ;
#ifdef CONFIG_ATBM_MAC80211_NO_USE
bool directed_tim = false;
#endif
u8 erp_value = 0;
u32 ncrc;
u8 *bssid;
ASSERT_MGD_MTX(ifmgd);
/* Process beacon from the current BSS */
baselen = (u8 *) mgmt->u.beacon.variable - (u8 *) mgmt;
if (baselen > len)
return;
if (rx_status->freq != channel_center_freq(chan_state->conf.channel))
return;
/*
* We might have received a number of frames, among them a
* disassoc frame and a beacon...
*/
if (!ifmgd->associated)
return;
bssid = ifmgd->associated->bssid;
/*
* And in theory even frames from a different AP we were just
* associated to a split-second ago!
*/
if (memcmp(bssid, mgmt->bssid, ETH_ALEN) != 0)
return;
/* Track average RSSI from the Beacon frames of the current AP */
ifmgd->last_beacon_signal = rx_status->signal;
if (ifmgd->flags & IEEE80211_STA_RESET_SIGNAL_AVE) {
ifmgd->flags &= ~IEEE80211_STA_RESET_SIGNAL_AVE;
ifmgd->ave_beacon_signal = rx_status->signal * 16;
ifmgd->last_cqm_event_signal = 0;
ifmgd->count_beacon_signal = 1;
ifmgd->last_ave_beacon_signal = 0;
} else {
ifmgd->ave_beacon_signal =
(IEEE80211_SIGNAL_AVE_WEIGHT * rx_status->signal * 16 +
(16 - IEEE80211_SIGNAL_AVE_WEIGHT) *
ifmgd->ave_beacon_signal) / 16;
ifmgd->count_beacon_signal++;
}
#ifdef CONFIG_ATBM_MAC80211_NO_USE
if (ifmgd->rssi_min_thold != ifmgd->rssi_max_thold &&
ifmgd->count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT) {
int sig = ifmgd->ave_beacon_signal;
int last_sig = ifmgd->last_ave_beacon_signal;
/*
* if signal crosses either of the boundaries, invoke callback
* with appropriate parameters
*/
if (sig > ifmgd->rssi_max_thold &&
(last_sig <= ifmgd->rssi_min_thold || last_sig == 0)) {
ifmgd->last_ave_beacon_signal = sig;
drv_rssi_callback(local, RSSI_EVENT_HIGH);
} else if (sig < ifmgd->rssi_min_thold &&
(last_sig >= ifmgd->rssi_max_thold ||
last_sig == 0)) {
ifmgd->last_ave_beacon_signal = sig;
drv_rssi_callback(local, RSSI_EVENT_LOW);
}
}
if (bss_conf->cqm_rssi_thold &&
ifmgd->count_beacon_signal >= IEEE80211_SIGNAL_AVE_MIN_COUNT &&
!(local->hw.flags & IEEE80211_HW_SUPPORTS_CQM_RSSI)) {
int sig = ifmgd->ave_beacon_signal / 16;
int last_event = ifmgd->last_cqm_event_signal;
int thold = bss_conf->cqm_rssi_thold;
int hyst = bss_conf->cqm_rssi_hyst;
if (sig < thold &&
(last_event == 0 || sig < last_event - hyst)) {
ifmgd->last_cqm_event_signal = sig;
ieee80211_cqm_rssi_notify(
&sdata->vif,
NL80211_CQM_RSSI_THRESHOLD_EVENT_LOW,
GFP_KERNEL);
} else if (sig > thold &&
(last_event == 0 || sig > last_event + hyst)) {
ifmgd->last_cqm_event_signal = sig;
ieee80211_cqm_rssi_notify(
&sdata->vif,
NL80211_CQM_RSSI_THRESHOLD_EVENT_HIGH,
GFP_KERNEL);
}
}
if (ifmgd->flags & IEEE80211_STA_BEACON_POLL) {
#ifdef CONFIG_MAC80211_ATBM_VERBOSE_DEBUG
if (net_ratelimit()) {
atbm_printk_debug("%s: cancelling probereq poll due "
"to a received beacon\n", sdata->name);
}
#endif
ifmgd->flags &= ~IEEE80211_STA_BEACON_POLL;
mutex_lock(&local->iflist_mtx);
ieee80211_recalc_ps(local, -1);
mutex_unlock(&local->iflist_mtx);
}
/*
* Push the beacon loss detection into the future since
* we are processing a beacon from the AP just now.
*/
ieee80211_sta_reset_beacon_monitor(sdata);
#endif
ncrc = crc32_be(0, (void *)&mgmt->u.beacon.beacon_int, 4);
ncrc = atbm_ieee802_11_parse_elems_crc(mgmt->u.beacon.variable,
len - baselen, &elems,
care_about_ies, ncrc);
#ifdef CONFIG_ATBM_MAC80211_NO_USE
if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK)
directed_tim = ieee80211_check_tim(elems.tim, elems.tim_len,
ifmgd->aid);
#endif
if (ncrc != ifmgd->beacon_crc || !ifmgd->beacon_crc_valid) {
ieee80211_rx_bss_info(sdata, mgmt, len, rx_status, &elems,
true);
ieee80211_sta_wmm_params(local, sdata, elems.wmm_param,
elems.wmm_param_len);
#ifdef CONFIG_ATBM_SUPPORT_P2P
ieee80211_sta_p2p_params(local, sdata, elems.p2p_ie,
elems.p2p_ie_len);
#endif
}
#ifdef CONFIG_ATBM_MAC80211_NO_USE
if (local->hw.flags & IEEE80211_HW_PS_NULLFUNC_STACK) {
if (directed_tim) {
if (sdata->vif.bss_conf.dynamic_ps_timeout > 0) {
sdata->vif.bss_conf.ps_enabled = false;
ieee80211_bss_info_change_notify(sdata, BSS_CHANGED_PS);
ieee80211_send_nullfunc(local, sdata, 0);
} else {
sdata->pspolling = true;
/*
* Here is assumed that the driver will be
* able to send ps-poll frame and receive a
* response even though power save mode is
* enabled, but some drivers might require
* to disable power save here. This needs
* to be investigated.
*/
ieee80211_send_pspoll(local, sdata);
}
}
}
#endif
if (ncrc == ifmgd->beacon_crc && ifmgd->beacon_crc_valid)
return;
ifmgd->beacon_crc = ncrc;
ifmgd->beacon_crc_valid = true;
if (elems.erp_info && elems.erp_info_len >= 1) {
erp_valid = true;
erp_value = elems.erp_info[0];
} else {
erp_valid = false;
}
#ifdef CONFIG_ATBM_SUPPORT_CHANSWITCH
#ifdef ATBM_SUPPORT_WIDTH_40M
if(elems.ch_switch_elem)
{
struct atbm_ieee80211_channel_sw_packed_ie sw_packed_ie = {
.chan_sw_ie = NULL,
.ex_chan_sw_ie = NULL,
.sec_chan_offs_ie = NULL,
};
sw_packed_ie.chan_sw_ie = (struct ieee80211_channel_sw_ie *)elems.ch_switch_elem;
ieee80211_sta_process_chanswitch(sdata,
&sw_packed_ie,
(void *)ifmgd->associated->priv,
rx_status->mactime);
}
if(elems.secondary_ch_elem){
struct atbm_ieee80211_channel_sw_packed_ie sw_packed_ie = {
.chan_sw_ie = NULL,
.ex_chan_sw_ie = NULL,
.sec_chan_offs_ie = NULL,
};
sw_packed_ie.sec_chan_offs_ie= (struct atbm_ieee80211_sec_chan_offs_ie *)elems.secondary_ch_elem;
ieee80211_sta_process_chanswitch(sdata,
&sw_packed_ie,
(void *)ifmgd->associated->priv,
rx_status->mactime);
}
if(elems.extended_ch_switch_elem)
{
struct atbm_ieee80211_channel_sw_packed_ie sw_packed_ie = {
.chan_sw_ie = NULL,
.ex_chan_sw_ie = NULL,
.sec_chan_offs_ie = NULL,
};
sw_packed_ie.ex_chan_sw_ie= (struct atbm_ieee80211_ext_chansw_ie *)elems.extended_ch_switch_elem;
ieee80211_sta_process_chanswitch(sdata,
&sw_packed_ie,
(void *)ifmgd->associated->priv,
rx_status->mactime);
}
#endif
#endif
changed |= ieee80211_handle_bss_capability(sdata,
le16_to_cpu(mgmt->u.beacon.capab_info),
erp_valid, erp_value);
if (elems.ht_cap_elem && elems.ht_info_elem && elems.wmm_param &&
!(ifmgd->flags & IEEE80211_STA_DISABLE_11N)) {
struct sta_info *sta;
struct ieee80211_supported_band *sband;
u16 ap_ht_cap_flags;
rcu_read_lock();
sta = sta_info_get(sdata, bssid);
if (WARN_ON(!sta)) {
atbm_printk_err("%s() %d## ifname[%s] sdata->vif.addr:%pM MAC:%pM \n",
__func__,__LINE__,sdata->name,sdata->vif.addr,bssid);
rcu_read_unlock();
return;
}
sband = local->hw.wiphy->bands[chan_state->conf.channel->band];
ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
elems.ht_cap_elem, &sta->sta.ht_cap);
ap_ht_cap_flags = sta->sta.ht_cap.cap;
rcu_read_unlock();
changed |= ieee80211_enable_ht(sdata, elems.ht_info_elem,
bssid, ap_ht_cap_flags, true);
}
/* Note: country IE parsing is done for us by cfg80211 */
if (elems.country_elem) {
/* TODO: IBSS also needs this */
if (elems.pwr_constr_elem)
ieee80211_handle_pwr_constr(sdata,
le16_to_cpu(mgmt->u.probe_resp.capab_info),
elems.pwr_constr_elem,
elems.pwr_constr_elem_len);
}
ieee80211_bss_info_change_notify(sdata, changed);
}
void ieee80211_sta_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
struct sk_buff *skb)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_rx_status *rx_status;
struct atbm_ieee80211_mgmt *mgmt;
enum rx_mgmt_action rma = RX_MGMT_NONE;
u16 fc;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0))
struct wireless_dev *wdev = sdata->dev->ieee80211_ptr;
#endif
rx_status = (struct ieee80211_rx_status *) skb->cb;
mgmt = (struct atbm_ieee80211_mgmt *) skb->data;
fc = le16_to_cpu(mgmt->frame_control);
mutex_lock(&ifmgd->mtx);
if (ifmgd->associated &&
memcmp(ifmgd->associated->bssid, mgmt->bssid, ETH_ALEN) == 0) {
switch (fc & IEEE80211_FCTL_STYPE) {
case IEEE80211_STYPE_BEACON:
ieee80211_rx_mgmt_beacon(sdata, mgmt, skb->len,
rx_status);
break;
case IEEE80211_STYPE_PROBE_RESP:
ieee80211_rx_mgmt_probe_resp(sdata, skb);
break;
case IEEE80211_STYPE_DEAUTH:
rma = ieee80211_rx_mgmt_deauth(sdata, mgmt, skb->len);
break;
case IEEE80211_STYPE_DISASSOC:
rma = ieee80211_rx_mgmt_disassoc(sdata, mgmt, skb->len);
break;
case IEEE80211_STYPE_ACTION:
{
#ifdef CONFIG_ATBM_SUPPORT_CHANSWITCH
#ifdef ATBM_SUPPORT_WIDTH_40M
struct atbm_ieee80211_channel_sw_packed_ie sw_packed_ie = {
.chan_sw_ie = NULL,
.ex_chan_sw_ie = NULL,
.sec_chan_offs_ie = NULL,
};
switch (mgmt->u.action.category) {
case ATBM_WLAN_CATEGORY_SPECTRUM_MGMT:
// add 8.5.2.6 Channel Switch Announcement frame format
if(
WLAN_ACTION_SPCT_CHL_SWITCH == mgmt->u.action.u.chan_switch.action_code
)
{
sw_packed_ie.chan_sw_ie = &mgmt->u.action.u.chan_switch.sw_elem;
if((skb->len -
offsetof(struct atbm_ieee80211_mgmt,u.action.u.chan_switch.sw_elem))
>
0
)
{
u8 *tmp_ie = ((u8 *)sw_packed_ie.chan_sw_ie) + 3;//sizeof(struct ieee80211_channel_sw_ie)
if((tmp_ie[0] == ATBM_WLAN_EID_SECONDARY_CH_OFFSET)&&(tmp_ie[1]==1))
{
sw_packed_ie.sec_chan_offs_ie = (struct atbm_ieee80211_sec_chan_offs_ie *)(tmp_ie+2);
}
}
ieee80211_sta_process_chanswitch(sdata,
&sw_packed_ie,
(void *)ifmgd->associated->priv,
rx_status->mactime);
}
break;
case ATBM_WLAN_CATEGORY_PUBLIC:
//add 8.5.8.7 Extended Channel Switch Announcement frame format
if(
ATBM_WLAN_PUB_ACTION_EX_CHL_SW_ANNOUNCE == mgmt->u.action.u.ext_chan_switch.action_code
)
{
sw_packed_ie.ex_chan_sw_ie = &mgmt->u.action.u.ext_chan_switch.ext_sw_elem;
ieee80211_sta_process_chanswitch(sdata,
&sw_packed_ie,
(void *)ifmgd->associated->priv,
rx_status->mactime);
}
break;
case ATBM_WLAN_CATEGORY_HT:
{
//add 8.5.12.2 Notify Channel Width frame format
if(
WLAN_HT_ACTION_NOTIFY_CHANWIDTH == mgmt->u.action.u.notify_chan_width.action_code
)
{
break;
}
}
default:
break;
}
#endif
#endif
break;
}
}
mutex_unlock(&ifmgd->mtx);
switch (rma) {
case RX_MGMT_NONE:
/* no action */
break;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0))
case RX_MGMT_CFG80211_DEAUTH:
cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
break;
case RX_MGMT_CFG80211_DISASSOC:
cfg80211_send_disassoc(sdata->dev, (u8 *)mgmt, skb->len);
break;
#else
case RX_MGMT_CFG80211_DEAUTH:
case RX_MGMT_CFG80211_DISASSOC:
{
atbm_wdev_lock(wdev);
cfg80211_rx_mlme_mgmt(sdata->dev,(u8 *)mgmt,skb->len);
atbm_wdev_unlock(wdev);
}
break;
#endif
default:
WARN(1, "unexpected: %d", rma);
}
return;
}
mutex_unlock(&ifmgd->mtx);
#ifdef CONFIG_ATBM_STA_LISTEN
if(rx_status->flag & RX_FLAG_STA_LISTEN){
ieee80211_sta_rx_queued_mgmt_special(sdata,skb);
return;
}
#endif
if (skb->len >= 24 + 2 /* mgmt + deauth reason */ &&
(fc & IEEE80211_FCTL_STYPE) == IEEE80211_STYPE_DEAUTH) {
struct ieee80211_local *local = sdata->local;
struct ieee80211_work *wk;
#ifdef CONFIG_ATBM_SUPPORT_P2P
u16 pre_reason = 0;
#endif
mutex_lock(&local->mtx);
list_for_each_entry(wk, &local->work_list, list) {
if (wk->sdata != sdata)
continue;
if (wk->type != IEEE80211_WORK_ASSOC &&
wk->type != IEEE80211_WORK_ASSOC_BEACON_WAIT)
continue;
if (memcmp(mgmt->bssid, wk->filter_ta, ETH_ALEN))
continue;
if (memcmp(mgmt->sa, wk->filter_ta, ETH_ALEN))
continue;
/*
* Printing the message only here means we can't
* spuriously print it, but it also means that it
* won't be printed when the frame comes in before
* we even tried to associate or in similar cases.
*
* Ultimately, I suspect cfg80211 should print the
* messages instead.
*/
atbm_printk_mgmt(
"%s: deauthenticated from %pM (Reason: %u)\n",
sdata->name, mgmt->bssid,
le16_to_cpu(mgmt->u.deauth.reason_code));
list_del_rcu(&wk->list);
free_work(wk);
break;
}
ieee80211_cancle_connecting_work(sdata,mgmt->bssid,true);
/*
*has pending so queue work
*/
if((list_empty(&local->work_list))&&
(local->roc_pendding || (local->scan_req &&!local->scanning))){
atbm_printk_mgmt("%s:queue work_work for pending scan or listenning",__func__);
ieee80211_queue_work(&local->hw, &local->work_work);
}
mutex_unlock(&local->mtx);
#ifdef CONFIG_ATBM_SUPPORT_P2P
/*
*some phone has a bug !!!!!!
*when after p2p provisioning wps process,go must send a deauthen with reason
*code 23 but some phone sends deauthen code 3.
*/
pre_reason = le16_to_cpu(mgmt->u.deauth.reason_code);
if((sdata->vif.p2p == true)&&(pre_reason != 23)){
mgmt->u.deauth.reason_code = cpu_to_le16(23);
atbm_printk_debug( "%s(%s):IEEE80211_STYPE_DEAUTH,reason(%d),pre_reason(%d)\n",
__func__,sdata->name,le16_to_cpu(mgmt->u.deauth.reason_code),pre_reason);
}
#endif
if(sdata->vif.p2p == true){
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0))
cfg80211_send_deauth(sdata->dev, (u8 *)mgmt, skb->len);
#else
{
atbm_wdev_lock(wdev);
cfg80211_rx_mlme_mgmt(sdata->dev,(u8 *)mgmt,skb->len);
atbm_wdev_unlock(wdev);
}
#endif
}
/*add by meng for a bug, wep change to wpa-psk , cannot connect*/
//sta_info_flush(local, sdata);
sta_info_destroy_addr(sdata,mgmt->bssid);
atbm_printk_err("##### %s:%d -- da:%pM sa:%pM bssid:%pM \n",__func__,__LINE__,mgmt->da,mgmt->sa,mgmt->bssid);
mutex_lock(&local->mtx);
ieee80211_recalc_idle(sdata->local);
mutex_unlock(&local->mtx);
}
}
//#if defined (CONFIG_ATBM_MAC80211_NO_USE) || defined(CONFIG_PM)
static void ieee80211_sta_connection_lost(struct ieee80211_sub_if_data *sdata,u8 *bssid, u8 reason)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
ifmgd->flags &= ~(IEEE80211_STA_CONNECTION_POLL |
IEEE80211_STA_BEACON_POLL);
ieee80211_set_disassoc(sdata, true, true);
mutex_unlock(&ifmgd->mtx);
mutex_lock(&local->mtx);
ieee80211_recalc_idle(local);
mutex_unlock(&local->mtx);
/*
* must be outside lock due to cfg80211,
* but that's not a problem.
*/
ieee80211_send_deauth_disassoc(sdata, bssid,
IEEE80211_STYPE_DEAUTH, reason,
NULL, true);
mutex_lock(&ifmgd->mtx);
}
void atbm_send_deauth_disossicate(struct ieee80211_sub_if_data *sdata,u8 *bssid)
{
ieee80211_sta_connection_lost(sdata,bssid,3);
}
//#endif
#if defined (CONFIG_PM) ||defined (ATBM_SUSPEND_REMOVE_INTERFACE) || defined (ATBM_SUPPORT_WOW)
void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
/*
* we need to use atomic bitops for the running bits
* only because both timers might fire at the same
* time -- the code here is properly synchronised.
*/
#ifdef CONFIG_ATBM_SMPS
atbm_cancel_work_sync(&ifmgd->request_smps_work);
#endif
#ifdef CONFIG_ATBM_MAC80211_NO_USE
atbm_cancel_work_sync(&ifmgd->monitor_work);
#endif
atbm_cancel_work_sync(&ifmgd->beacon_connection_loss_work);
#ifdef CONFIG_ATBM_MAC80211_NO_USE
if (atbm_del_timer_sync(&ifmgd->timer))
set_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running);
#endif
#ifdef CONFIG_ATBM_SUPPORT_CHANSWITCH
atbm_cancel_work_sync(&ifmgd->chswitch_work);
if (atbm_del_timer_sync(&ifmgd->chswitch_timer))
set_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running);
#endif
#ifdef CONFIG_ATBM_MAC80211_NO_USE
/* these will just be re-established on connection */
atbm_del_timer_sync(&ifmgd->conn_mon_timer);
atbm_del_timer_sync(&ifmgd->bcn_mon_timer);
#endif
}
#endif
#if defined (CONFIG_PM)
void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
if (!ifmgd->associated)
return;
if (sdata->flags & IEEE80211_SDATA_DISCONNECT_RESUME) {
sdata->flags &= ~IEEE80211_SDATA_DISCONNECT_RESUME;
mutex_lock(&ifmgd->mtx);
if (ifmgd->associated) {
#ifdef CONFIG_MAC80211_ATBM_VERBOSE_DEBUG
wiphy_debug(sdata->local->hw.wiphy,
"%s: driver requested disconnect after resume.\n",
sdata->name);
#endif
ieee80211_sta_connection_lost(sdata,
ifmgd->associated->bssid,
WLAN_REASON_UNSPECIFIED);
mutex_unlock(&ifmgd->mtx);
return;
}
mutex_unlock(&ifmgd->mtx);
}
#ifdef CONFIG_ATBM_MAC80211_NO_USE
if (test_and_clear_bit(TMR_RUNNING_TIMER, &ifmgd->timers_running))
atbm_add_timer(&ifmgd->timer);
#endif
#ifdef CONFIG_ATBM_SUPPORT_CHANSWITCH
if (test_and_clear_bit(TMR_RUNNING_CHANSW, &ifmgd->timers_running))
atbm_add_timer(&ifmgd->chswitch_timer);
#endif
#ifdef CONFIG_ATBM_MAC80211_NO_USE
ieee80211_sta_reset_beacon_monitor(sdata);
ieee80211_restart_sta_timer(sdata, true);
ieee80211_queue_work(&sdata->local->hw, &sdata->u.mgd.monitor_work);
#endif
}
#endif
/* interface setup */
void ieee80211_sta_setup_sdata(struct ieee80211_sub_if_data *sdata)
{
struct ieee80211_if_managed *ifmgd;
ifmgd = &sdata->u.mgd;
#ifdef CONFIG_ATBM_MAC80211_NO_USE
ATBM_INIT_WORK(&ifmgd->monitor_work, ieee80211_sta_monitor_work);
#endif
#ifdef CONFIG_ATBM_SUPPORT_CHANSWITCH
ATBM_INIT_WORK(&ifmgd->chswitch_work, ieee80211_chswitch_work);
atbm_setup_timer(&ifmgd->chswitch_timer, ieee80211_chswitch_timer,
(unsigned long) sdata);
#endif
ATBM_INIT_WORK(&ifmgd->beacon_connection_loss_work,
ieee80211_beacon_connection_loss_work);
#ifdef CONFIG_ATBM_SMPS
ATBM_INIT_WORK(&ifmgd->request_smps_work, ieee80211_request_smps_work);
#endif
#ifdef CONFIG_ATBM_MAC80211_NO_USE
atbm_setup_timer(&ifmgd->timer, ieee80211_sta_timer,
(unsigned long) sdata);
atbm_setup_timer(&ifmgd->bcn_mon_timer, ieee80211_sta_bcn_mon_timer,
(unsigned long) sdata);
atbm_setup_timer(&ifmgd->conn_mon_timer, ieee80211_sta_conn_mon_timer,
(unsigned long) sdata);
#endif
/*
setup_timer(&ifmgd->scan_delay_timer,ieee80211_scan_delay_timer,
(unsigned long)sdata);
*/
ifmgd->flags = 0;
mutex_init(&ifmgd->mtx);
/* Disable UAPSD for sta by default */
sdata->local->uapsd_queues = 0;
if (sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS)
ifmgd->req_smps = IEEE80211_SMPS_AUTOMATIC;
else
ifmgd->req_smps = IEEE80211_SMPS_OFF;
#ifdef CONFIG_MAC80211_ATBM_ROAMING_CHANGES
ifmgd->roaming = 0;
#endif
}
/* scan finished notification */
void ieee80211_mlme_notify_scan_completed(struct ieee80211_local *local)
{
struct ieee80211_sub_if_data *sdata;
#ifdef CONFIG_ATBM_MAC80211_NO_USE
/* Restart STA timers */
#if 0
rcu_read_lock();
list_for_each_entry_rcu(sdata, &local->interfaces, list){
printk(KERN_ERR "%s:sdata(%x)++++++++\n",__func__,sdata);
if(ieee80211_sdata_running(sdata))
ieee80211_restart_sta_timer(sdata, false);
printk(KERN_ERR "%s:sdata(%x)--------\n",__func__,sdata);
}
rcu_read_unlock();
#else
mutex_lock(&local->iflist_mtx);
list_for_each_entry(sdata, &local->interfaces, list) {
if(ieee80211_sdata_running(sdata))
ieee80211_restart_sta_timer(sdata, false);
}
mutex_unlock(&local->iflist_mtx);
#endif
#else
mutex_lock(&local->iflist_mtx);
list_for_each_entry(sdata, &local->interfaces, list) {
if(ieee80211_sdata_running(sdata)&&(sdata->vif.type == NL80211_IFTYPE_STATION))
ieee80211_queue_work(&sdata->local->hw, &sdata->work);
}
mutex_unlock(&local->iflist_mtx);
#endif
}
#ifdef CONFIG_ATBM_PM_QOS
int ieee80211_max_network_latency(struct notifier_block *nb,
unsigned long data, void *dummy)
{
s32 latency_usec = (s32) data;
struct ieee80211_local *local =
container_of(nb, struct ieee80211_local,
network_latency_notifier);
mutex_lock(&local->iflist_mtx);
ieee80211_recalc_ps(local, latency_usec);
mutex_unlock(&local->iflist_mtx);
return 0;
}
#endif
/* config hooks */
static enum work_done_result
ieee80211_probe_auth_done(struct ieee80211_work *wk,
struct sk_buff *skb)
{
struct ieee80211_local *local = wk->sdata->local;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0))
struct wireless_dev *wdev = wk->sdata->dev->ieee80211_ptr;
#endif
if (!skb) {
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0))
cfg80211_send_auth_timeout(wk->sdata->dev, wk->filter_ta);
#else
atbm_wdev_lock(wdev);
cfg80211_auth_timeout(wk->sdata->dev, wk->filter_ta);
atbm_wdev_unlock(wdev);
#endif
goto destroy;
}
if (wk->type == IEEE80211_WORK_AUTH) {
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0))
cfg80211_send_rx_auth(wk->sdata->dev, skb->data, skb->len);
#else
{
atbm_wdev_lock(wdev);
cfg80211_rx_mlme_mgmt(wk->sdata->dev, skb->data, skb->len);
atbm_wdev_unlock(wdev);
}
#endif
goto destroy;
}
mutex_lock(&wk->sdata->u.mgd.mtx);
ieee80211_rx_mgmt_probe_resp(wk->sdata, skb);
mutex_unlock(&wk->sdata->u.mgd.mtx);
wk->type = IEEE80211_WORK_AUTH;
wk->probe_auth.tries = 0;
return WORK_DONE_REQUEUE;
destroy:
if (wk->probe_auth.synced)
drv_finish_tx_sync(local, wk->sdata, wk->filter_ta,
IEEE80211_TX_SYNC_AUTH);
return WORK_DONE_DESTROY;
}
int ieee80211_mgd_auth(struct ieee80211_sub_if_data *sdata,
struct cfg80211_auth_request *req)
{
const u8 *ssid;
struct ieee80211_work *wk;
u16 auth_alg;
struct ieee80211_local *local = sdata->local;
size_t ie_len = 0;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0))
if (req->local_state_change)
return 0; /* no need to update mac80211 state */
#endif
switch (req->auth_type) {
case NL80211_AUTHTYPE_OPEN_SYSTEM:
auth_alg = WLAN_AUTH_OPEN;
break;
case NL80211_AUTHTYPE_SHARED_KEY:
#ifdef CONFIG_ATBM_USE_SW_ENC
#if (LINUX_VERSION_CODE <= KERNEL_VERSION(5, 4, 0))
if (IS_ERR(sdata->local->wep_tx_tfm))
return -EOPNOTSUPP;
#endif
auth_alg = WLAN_AUTH_SHARED_KEY;
break;
#else
return -EOPNOTSUPP;
#endif
case NL80211_AUTHTYPE_FT:
auth_alg = WLAN_AUTH_FT;
break;
case NL80211_AUTHTYPE_NETWORK_EAP:
auth_alg = WLAN_AUTH_LEAP;
break;
#ifdef CONFIG_ATBM_SUPPORT_SAE
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0))
//#if (LINUX_VERSION_CODE > KERNEL_VERSION(4, 0, 0))
case NL80211_AUTHTYPE_SAE:
auth_alg = WLAN_AUTH_SAE;
break;
#endif
#endif
default:
return -EOPNOTSUPP;
}
ie_len = req->ie_len;
#ifdef CONFIG_ATBM_SUPPORT_SAE
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0))
//#if (LINUX_VERSION_CODE > KERNEL_VERSION(4, 0, 0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(4, 19, 0))
ie_len += req->sae_data_len;
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0))
ie_len += req->auth_data_len;
#endif
#endif
wk = atbm_kzalloc(sizeof(*wk) + ie_len , GFP_KERNEL);
if (!wk)
return -ENOMEM;
/*
*release prev bss , and assign current bss for later user
*/
mutex_lock(&local->mtx);
ieee80211_free_authen_bss(sdata);
ieee80211_assign_authen_bss(sdata,req->bss);
mutex_unlock(&local->mtx);
memcpy(wk->filter_ta, req->bss->bssid, ETH_ALEN);
#ifdef CONFIG_ATBM_SUPPORT_SAE
//#if (LINUX_VERSION_CODE > KERNEL_VERSION(4, 0, 0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(4, 19, 0))
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0)) && (LINUX_VERSION_CODE < KERNEL_VERSION(4, 14, 0))
if (req->sae_data_len >= 4) {
__le16 *pos = (__le16 *) req->sae_data;
wk->probe_auth.sae_trans = le16_to_cpu(pos[0]);
wk->probe_auth.sae_status = le16_to_cpu(pos[1]);
memcpy(wk->ie, req->sae_data + 4,
req->sae_data_len - 4);
wk->ie_len += req->sae_data_len - 4;
}
#endif
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(4, 14, 0))
if (req->auth_data_len >= 4) {
__le16 *pos = (__le16 *) req->auth_data;
wk->probe_auth.sae_trans = le16_to_cpu(pos[0]);
wk->probe_auth.sae_status = le16_to_cpu(pos[1]);
memcpy(wk->ie, req->auth_data + 4,
req->auth_data_len - 4);
wk->ie_len += req->auth_data_len - 4;
}
#endif
#endif
if (req->ie && req->ie_len) {
memcpy(&wk->ie[wk->ie_len], req->ie, req->ie_len);
wk->ie_len += req->ie_len;
}
if (req->key && req->key_len) {
wk->probe_auth.key_len = req->key_len;
wk->probe_auth.key_idx = req->key_idx;
memcpy(wk->probe_auth.key, req->key, req->key_len);
}
ssid = ieee80211_bss_get_ie(req->bss, ATBM_WLAN_EID_SSID);
if(ssid){
memcpy(wk->probe_auth.ssid, ssid + 2, ssid[1]);
wk->probe_auth.ssid_len = ssid[1];
}else {
atbm_printk_mgmt("%s:no ssid\n",__func__);
wk->probe_auth.ssid_len = 0;
}
wk->probe_auth.algorithm = auth_alg;
wk->probe_auth.privacy = req->bss->capability & WLAN_CAPABILITY_PRIVACY;
wk->probe_auth.bss = req->bss;
/* if we already have a probe, don't probe again */
if (req->bss->proberesp_ies || req->bss->beacon_ies)
wk->type = IEEE80211_WORK_AUTH;
else
wk->type = IEEE80211_WORK_DIRECT_PROBE;
wk->chan = req->bss->channel;
wk->chan_type = NL80211_CHAN_NO_HT;
wk->sdata = sdata;
wk->done = ieee80211_probe_auth_done;
atbm_printk_always("authen:(%pM),ssid(%s)\n",wk->filter_ta,wk->probe_auth.ssid);
ieee80211_add_work(wk);
return 0;
}
/* create and insert a dummy station entry */
static int ieee80211_pre_assoc(struct ieee80211_sub_if_data *sdata,
u8 *bssid) {
struct sta_info *sta;
int err;
sta = sta_info_alloc(sdata, bssid, GFP_KERNEL);
if (!sta)
return -ENOMEM;
sta->dummy = true;
err = sta_info_insert(sta);
sta = NULL;
if (err) {
atbm_printk_err( "%s: failed to insert Dummy STA(%d)\n", sdata->name, err);
return err;
}
return 0;
}
static enum work_done_result ieee80211_assoc_done(struct ieee80211_work *wk,
struct sk_buff *skb)
{
struct ieee80211_local *local = wk->sdata->local;
struct atbm_ieee80211_mgmt *mgmt;
struct ieee80211_rx_status *rx_status;
struct ieee802_atbm_11_elems elems;
struct cfg80211_bss *cbss = wk->assoc.bss;
u16 status;
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,11,0))
struct wireless_dev *wdev = wk->sdata->dev->ieee80211_ptr;
#endif
if (!skb) {
sta_info_destroy_addr(wk->sdata, cbss->bssid);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0))
cfg80211_send_assoc_timeout(wk->sdata->dev, wk->filter_ta);
#else
atbm_wdev_lock(wdev);
cfg80211_assoc_timeout(wk->sdata->dev,cbss);
atbm_wdev_unlock(wdev);
#endif
mutex_lock(&local->mtx);
atbm_printk_err( "ieee80211_assoc_done err\n");
ieee80211_cancle_connecting_work(wk->sdata,wk->filter_ta,true);
mutex_unlock(&local->mtx);
goto destroy;
}
if (wk->type == IEEE80211_WORK_ASSOC_BEACON_WAIT) {
mutex_lock(&wk->sdata->u.mgd.mtx);
rx_status = (void *) skb->cb;
ieee802_11_parse_elems(skb->data + 24 + 12, skb->len - 24 - 12, &elems);
ieee80211_rx_bss_info(wk->sdata, (void *)skb->data, skb->len, rx_status,
&elems, true);
mutex_unlock(&wk->sdata->u.mgd.mtx);
wk->type = IEEE80211_WORK_ASSOC;
/* not really done yet */
return WORK_DONE_REQUEUE;
}
mgmt = (void *)skb->data;
status = le16_to_cpu(mgmt->u.assoc_resp.status_code);
if (status == WLAN_STATUS_SUCCESS) {
if (wk->assoc.synced)
drv_finish_tx_sync(local, wk->sdata, wk->filter_ta,
IEEE80211_TX_SYNC_ASSOC);
mutex_lock(&wk->sdata->u.mgd.mtx);
if (!ieee80211_assoc_success(wk, mgmt, skb->len)) {
mutex_unlock(&wk->sdata->u.mgd.mtx);
/* oops -- internal error -- send timeout for now */
sta_info_destroy_addr(wk->sdata, cbss->bssid);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0))
cfg80211_send_assoc_timeout(wk->sdata->dev,
wk->filter_ta);
#else
atbm_wdev_lock(wdev);
cfg80211_assoc_timeout(wk->sdata->dev,
cbss);
atbm_wdev_unlock(wdev);
#endif
return WORK_DONE_DESTROY;
}
mutex_unlock(&wk->sdata->u.mgd.mtx);
} else {
mutex_lock(&local->mtx);
atbm_printk_err( "%s:status(%d)\n",__func__,status);
ieee80211_cancle_connecting_work(wk->sdata,wk->filter_ta,true);
mutex_unlock(&local->mtx);
/* assoc failed - destroy the dummy station entry */
sta_info_destroy_addr(wk->sdata, cbss->bssid);
}
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3,4,0)) && !defined(COMPAT_KERNEL_RELEASE)
cfg80211_send_rx_assoc(wk->sdata->dev, skb->data, skb->len);
#elif (LINUX_VERSION_CODE < KERNEL_VERSION(3,11,0))
cfg80211_send_rx_assoc(wk->sdata->dev, cbss,skb->data, skb->len);
#elif (LINUX_VERSION_CODE < KERNEL_VERSION(3,18,0))
/*
void cfg80211_rx_assoc_resp(struct net_device *dev, struct cfg80211_bss *bss,
const u8 *buf, size_t len)
*/
atbm_wdev_lock(wdev);
cfg80211_rx_assoc_resp(wk->sdata->dev,cbss,skb->data,skb->len);
atbm_wdev_unlock(wdev);
#elif (LINUX_VERSION_CODE > KERNEL_VERSION(5,0,0))
atbm_wdev_lock(wdev);
cfg80211_rx_assoc_resp(wk->sdata->dev,cbss,skb->data,skb->len, -1, NULL, 0);
atbm_wdev_unlock(wdev);
#else
atbm_wdev_lock(wdev);
cfg80211_rx_assoc_resp(wk->sdata->dev,cbss,skb->data,skb->len, -1);
atbm_wdev_unlock(wdev);
#endif
destroy:
if (wk->assoc.synced)
drv_finish_tx_sync(local, wk->sdata, wk->filter_ta,
IEEE80211_TX_SYNC_ASSOC);
return WORK_DONE_DESTROY;
}
int ieee80211_mgd_assoc(struct ieee80211_sub_if_data *sdata,
struct cfg80211_assoc_request *req)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
struct ieee80211_bss *bss = (void *)req->bss->priv;
struct ieee80211_work *wk;
const u8 *ssid;
int i, err;
struct sta_info * sta = NULL;
mutex_lock(&ifmgd->mtx);
if (ifmgd->associated) {
if (!req->prev_bssid ||
memcmp(req->prev_bssid, ifmgd->associated->bssid,
ETH_ALEN)) {
/*
* We are already associated and the request was not a
* reassociation request from the current BSS, so
* reject it.
*/
mutex_unlock(&ifmgd->mtx);
return -EALREADY;
}
#ifdef CONFIG_MAC80211_ATBM_ROAMING_CHANGES
ifmgd->roaming = 1;
#endif
/* Trying to reassociate - clear previous association state */
ieee80211_set_disassoc(sdata, true, false);
#ifdef CONFIG_MAC80211_ATBM_ROAMING_CHANGES
ifmgd->roaming = 0;
#endif
}
mutex_unlock(&ifmgd->mtx);
wk = atbm_kzalloc(sizeof(*wk) + req->ie_len, GFP_KERNEL);
if (!wk)
return -ENOMEM;
/*
* create a dummy station info entry in order
* to start accepting incoming EAPOL packets from the station
*/
err = ieee80211_pre_assoc(sdata, req->bss->bssid);
if (err) {
atbm_kfree(wk);
return err;
}
ifmgd->flags &= ~IEEE80211_STA_DISABLE_11N;
ifmgd->flags &= ~IEEE80211_STA_NULLFUNC_ACKED;
ifmgd->beacon_crc_valid = false;
for (i = 0; i < req->crypto.n_ciphers_pairwise; i++)
if (req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP40 ||
req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_TKIP ||
req->crypto.ciphers_pairwise[i] == WLAN_CIPHER_SUITE_WEP104)
ifmgd->flags |= IEEE80211_STA_DISABLE_11N;
rcu_read_lock();
sta = sta_info_get_rx(sdata, req->bss->bssid);
if(sta){
sta_info_set_mgmt_suit(sta,&req->crypto);
}else{
WARN_ON(1);
}
rcu_read_unlock();
if (req->ie && req->ie_len) {
memcpy(wk->ie, req->ie, req->ie_len);
wk->ie_len = req->ie_len;
} else
wk->ie_len = 0;
wk->assoc.bss = req->bss;
memcpy(wk->filter_ta, req->bss->bssid, ETH_ALEN);
/* new association always uses requested smps mode */
if (ifmgd->req_smps == IEEE80211_SMPS_AUTOMATIC) {
if (ifmgd->powersave)
ifmgd->ap_smps = IEEE80211_SMPS_DYNAMIC;
else
ifmgd->ap_smps = IEEE80211_SMPS_OFF;
} else
ifmgd->ap_smps = ifmgd->req_smps;
wk->assoc.smps = ifmgd->ap_smps;
/*
* IEEE802.11n does not allow TKIP/WEP as pairwise ciphers in HT mode.
* We still associate in non-HT mode (11a/b/g) if any one of these
* ciphers is configured as pairwise.
* We can set this to true for non-11n hardware, that'll be checked
* separately along with the peer capabilities.
*/
wk->assoc.use_11n = !(ifmgd->flags & IEEE80211_STA_DISABLE_11N);
wk->assoc.capability = req->bss->capability;
wk->assoc.wmm_used = bss->wmm_used &&
(local->hw.queues >= IEEE80211_NUM_ACS);
wk->assoc.supp_rates = bss->supp_rates;
wk->assoc.supp_rates_len = bss->supp_rates_len;
wk->assoc.ht_information_ie =
ieee80211_bss_get_ie(req->bss, ATBM_WLAN_EID_HT_INFORMATION);
if (bss->wmm_used && bss->uapsd_supported &&
(sdata->local->hw.flags & IEEE80211_HW_SUPPORTS_UAPSD)) {
#if 0
if (req->uapsd != -1)
sdata->local->uapsd_queues = req->uapsd;
#endif
wk->assoc.uapsd_used = true;
ifmgd->flags |= IEEE80211_STA_UAPSD_ENABLED;
} else {
wk->assoc.uapsd_used = false;
ifmgd->flags &= ~IEEE80211_STA_UAPSD_ENABLED;
}
ssid = ieee80211_bss_get_ie(req->bss, ATBM_WLAN_EID_SSID);
memcpy(wk->assoc.ssid, ssid + 2, ssid[1]);
wk->assoc.ssid_len = ssid[1];
if (req->prev_bssid)
memcpy(wk->assoc.prev_bssid, req->prev_bssid, ETH_ALEN);
wk->chan = req->bss->channel;
wk->chan_type = NL80211_CHAN_NO_HT;
wk->sdata = sdata;
wk->done = ieee80211_assoc_done;
if (!bss->dtim_period &&
sdata->local->hw.flags & IEEE80211_HW_NEED_DTIM_PERIOD)
wk->type = IEEE80211_WORK_ASSOC_BEACON_WAIT;
else
wk->type = IEEE80211_WORK_ASSOC;
if (req->use_mfp) {
ifmgd->mfp = IEEE80211_MFP_REQUIRED;
ifmgd->flags |= IEEE80211_STA_MFP_ENABLED;
} else {
ifmgd->mfp = IEEE80211_MFP_DISABLED;
ifmgd->flags &= ~IEEE80211_STA_MFP_ENABLED;
}
if (req->crypto.control_port)
ifmgd->flags |= IEEE80211_STA_CONTROL_PORT;
else
ifmgd->flags &= ~IEEE80211_STA_CONTROL_PORT;
sdata->control_port_protocol = req->crypto.control_port_ethertype;
sdata->control_port_no_encrypt = req->crypto.control_port_no_encrypt;
ieee80211_add_work(wk);
ieee80211_start_connecting_work(wk->sdata,wk->chan,wk->filter_ta);
/*
*release authen_bss because at associate state cfg80211
*has handled the bss
*/
mutex_lock(&local->mtx);
ieee80211_free_authen_bss(sdata);
mutex_unlock(&local->mtx);
return 0;
}
int ieee80211_mgd_deauth(struct ieee80211_sub_if_data *sdata,
struct cfg80211_deauth_request *req,
void *cookie)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
u8 bssid[ETH_ALEN];
bool assoc_bss = false;
struct cfg80211_bss *prev_bss = NULL;
LOCAL_SET_CONNECT_STOP(local);
/*
*deauthen ,release authen_bss
*/
mutex_lock(&local->mtx);
prev_bss = rcu_dereference(ifmgd->authen_bss);
if(prev_bss){
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0))
if(memcmp(prev_bss->bssid,req->bss->bssid,ETH_ALEN)==0)
#else
if(memcmp(prev_bss->bssid,req->bssid,ETH_ALEN)==0)
#endif
{
ieee80211_free_authen_bss(sdata);
}
}
mutex_unlock(&local->mtx);
mutex_lock(&ifmgd->mtx);
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0))
memcpy(bssid, req->bss->bssid, ETH_ALEN);
if (ifmgd->associated == req->bss)
#else
memcpy(bssid, req->bssid, ETH_ALEN);
if(ifmgd->associated&&(atbm_compare_ether_addr(ifmgd->associated->bssid, req->bssid)==0))
#endif
{
ieee80211_set_disassoc(sdata, false, true);
mutex_unlock(&ifmgd->mtx);
assoc_bss = true;
} else {
bool not_auth_yet = false;
struct ieee80211_work *tmp, *wk = NULL;
mutex_unlock(&ifmgd->mtx);
mutex_lock(&local->mtx);
list_for_each_entry(tmp, &local->work_list, list) {
if (tmp->sdata != sdata)
continue;
if (tmp->type != IEEE80211_WORK_DIRECT_PROBE &&
tmp->type != IEEE80211_WORK_AUTH &&
tmp->type != IEEE80211_WORK_ASSOC &&
tmp->type != IEEE80211_WORK_ASSOC_BEACON_WAIT)
continue;
#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 4, 0))
if (memcmp(req->bss->bssid, tmp->filter_ta, ETH_ALEN))
#else
if (memcmp(req->bssid, tmp->filter_ta, ETH_ALEN))
#endif
continue;
not_auth_yet = tmp->type == IEEE80211_WORK_DIRECT_PROBE;
list_del_rcu(&tmp->list);
synchronize_rcu();
wk = tmp;
break;
}
ieee80211_cancle_connecting_work(sdata,bssid,false);
/*
*has pending so queue work
*/
if((list_empty(&local->work_list))&&
(local->roc_pendding || (local->scan_req &&!local->scanning))){
atbm_printk_mgmt("%s:queue work_work for pending scan or listenning",__func__);
ieee80211_queue_work(&local->hw, &local->work_work);
}
mutex_unlock(&local->mtx);
if (wk && wk->type == IEEE80211_WORK_ASSOC) {
/* clean up dummy sta & TX sync */
sta_info_destroy_addr(wk->sdata, wk->filter_ta);
if (wk->assoc.synced)
drv_finish_tx_sync(local, wk->sdata,
wk->filter_ta,
IEEE80211_TX_SYNC_ASSOC);
} else if (wk && wk->type == IEEE80211_WORK_AUTH) {
if (wk->probe_auth.synced)
drv_finish_tx_sync(local, wk->sdata,
wk->filter_ta,
IEEE80211_TX_SYNC_AUTH);
}
atbm_kfree(wk);
/*
* If somebody requests authentication and we haven't
* sent out an auth frame yet there's no need to send
* out a deauth frame either. If the state was PROBE,
* then this is the case. If it's AUTH we have sent a
* frame, and if it's IDLE we have completed the auth
* process already.
*/
if (not_auth_yet) {
#if (LINUX_VERSION_CODE<KERNEL_VERSION(3,4,0))
__cfg80211_auth_canceled(sdata->dev, bssid);
#endif
return 0;
}
}
atbm_printk_always( "%s: deauthenticating from %pM by local choice (reason=%d)\n",
sdata->name, bssid, req->reason_code);
#if((LINUX_VERSION_CODE>=KERNEL_VERSION(3,4,0))&&(LINUX_VERSION_CODE<KERNEL_VERSION(3,6,0)))
ieee80211_send_deauth_disassoc(sdata, bssid, IEEE80211_STYPE_DEAUTH,
req->reason_code, cookie,
true);
#else
ieee80211_send_deauth_disassoc(sdata, bssid, IEEE80211_STYPE_DEAUTH,
req->reason_code, cookie,
!req->local_state_change);
#endif
if (assoc_bss)
sta_info_flush(sdata->local, sdata);
mutex_lock(&sdata->local->mtx);
ieee80211_recalc_idle(sdata->local);
mutex_unlock(&sdata->local->mtx);
return 0;
}
int ieee80211_mgd_disassoc(struct ieee80211_sub_if_data *sdata,
struct cfg80211_disassoc_request *req,
void *cookie)
{
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
u8 bssid[ETH_ALEN];
mutex_lock(&ifmgd->mtx);
/*
* cfg80211 should catch this ... but it's racy since
* we can receive a disassoc frame, process it, hand it
* to cfg80211 while that's in a locked section already
* trying to tell us that the user wants to disconnect.
*/
if (ifmgd->associated != req->bss) {
mutex_unlock(&ifmgd->mtx);
return -ENOLINK;
}
atbm_printk_mgmt( "%s: disassociating from %pM by local choice (reason=%d)\n",
sdata->name, req->bss->bssid, req->reason_code);
memcpy(bssid, req->bss->bssid, ETH_ALEN);
ieee80211_set_disassoc(sdata, false, true);
mutex_unlock(&ifmgd->mtx);
ieee80211_send_deauth_disassoc(sdata, req->bss->bssid,
IEEE80211_STYPE_DISASSOC, req->reason_code,
cookie, !req->local_state_change);
sta_info_flush(sdata->local, sdata);
/*
*disassoc ,release authen_bss
*/
mutex_lock(&sdata->local->mtx);
ieee80211_free_authen_bss(sdata);
ieee80211_recalc_idle(sdata->local);
mutex_unlock(&sdata->local->mtx);
return 0;
}
#ifdef CONFIG_ATBM_MAC80211_NO_USE
void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif,
enum nl80211_cqm_rssi_threshold_event rssi_event,
gfp_t gfp)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
trace_api_cqm_rssi_notify(sdata, rssi_event);
cfg80211_cqm_rssi_notify(sdata->dev, rssi_event, gfp);
}
#endif
//EXPORT_SYMBOL(ieee80211_cqm_rssi_notify);
#if 0
void ieee80211_cqm_beacon_miss_notify(struct ieee80211_vif *vif,
gfp_t gfp)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
cfg80211_cqm_beacon_miss_notify(sdata->dev, gfp);
}
//EXPORT_SYMBOL(ieee80211_cqm_beacon_miss_notify);
void ieee80211_cqm_tx_fail_notify(struct ieee80211_vif *vif,
gfp_t gfp)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
cfg80211_cqm_tx_fail_notify(sdata->dev, gfp);
}
//EXPORT_SYMBOL(ieee80211_cqm_tx_fail_notify);
void ieee80211_p2p_noa_notify(struct ieee80211_vif *vif,
struct cfg80211_p2p_ps *p2p_ps,
gfp_t gfp)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
cfg80211_p2p_noa_notify(sdata->dev, p2p_ps, gfp);
}
//EXPORT_SYMBOL(ieee80211_p2p_noa_notify);
void ieee80211_driver_hang_notify(struct ieee80211_vif *vif,
gfp_t gfp)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
cfg80211_driver_hang_notify(sdata->dev, gfp);
}
//EXPORT_SYMBOL(ieee80211_driver_hang_notify);
#endif
#ifdef CONFIG_ATBM_MAC80211_NO_USE
unsigned char ieee80211_get_operstate(struct ieee80211_vif *vif)
{
struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
return sdata->dev->operstate;
}
#endif
#ifdef CONFIG_ATBM_RADAR_DETECT
#ifdef CONFIG_ATBM_5G_PRETEND_2G
void ieee80211_dfs_cac_timer_work(struct atbm_work_struct *work)
{
#if (LINUX_VERSION_CODE > KERNEL_VERSION(3, 9, 0))
struct atbm_delayed_work *delayed_work = atbm_to_delayed_work(work);
struct ieee80211_sub_if_data *sdata =
container_of(atbm_delayed_work, struct ieee80211_sub_if_data,
dfs_cac_timer_work);
mutex_lock(&sdata->local->mtx);
sdata->radar_required = false;
if (sdata->wdev.cac_started) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 14, 0))
cfg80211_cac_event(sdata->dev, &sdata->dfs_cac_chan_def,
NL80211_RADAR_CAC_FINISHED,
GFP_KERNEL);
#else
cfg80211_cac_event(sdata->dev, NL80211_RADAR_CAC_ABORTED,
GFP_KERNEL);
#endif
}
mutex_unlock(&sdata->local->mtx);
#endif
}
void ieee80211_dfs_cac_abort(struct ieee80211_sub_if_data *sdata)
{
atbm_cancel_delayed_work_sync(&sdata->dfs_cac_timer_work);
sdata->radar_required = false;
#if (LINUX_VERSION_CODE > KERNEL_VERSION(3, 9, 0))
if (sdata->wdev.cac_started) {
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 14, 0))
cfg80211_cac_event(sdata->dev,&sdata->dfs_cac_chan_def,NL80211_RADAR_CAC_ABORTED,
GFP_KERNEL);
#else
cfg80211_cac_event(sdata->dev, NL80211_RADAR_CAC_ABORTED,
GFP_KERNEL);
#endif
}
#endif
}
#endif
#endif
//EXPORT_SYMBOL(ieee80211_get_operstate);
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