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mac80211: Use monitor configuration flags 

Take advantage of the monitor configuration flags now provided by cfg80211.

Signed-off-by: Michael Wu <flamingice@sourmilk.net>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Michael Wu 2008-01-31 19:48:23 +01:00 committed by John W. Linville
parent 66f7ac50ed
commit 8cc9a73914
4 changed files with 60 additions and 16 deletions
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15
net/mac80211/cfg.c
View File

@ -38,6 +38,9 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
{
struct ieee80211_local *local = wiphy_priv(wiphy);
enum ieee80211_if_types itype;
struct net_device *dev;
struct ieee80211_sub_if_data *sdata;
int err;
if (unlikely(local->reg_state != IEEE80211_DEV_REGISTERED))
return -ENODEV;
@ -46,7 +49,13 @@ static int ieee80211_add_iface(struct wiphy *wiphy, char *name,
if (itype == IEEE80211_IF_TYPE_INVALID)
return -EINVAL;
return ieee80211_if_add(local->mdev, name, NULL, itype);
err = ieee80211_if_add(local->mdev, name, &dev, itype);
if (err || itype != IEEE80211_IF_TYPE_MNTR || !flags)
return err;
sdata = IEEE80211_DEV_TO_SUB_IF(dev);
sdata->u.mntr_flags = *flags;
return 0;
}
static int ieee80211_del_iface(struct wiphy *wiphy, int ifindex)
@ -99,6 +108,10 @@ static int ieee80211_change_iface(struct wiphy *wiphy, int ifindex,
ieee80211_if_reinit(dev);
ieee80211_if_set_type(dev, itype);
if (sdata->vif.type != IEEE80211_IF_TYPE_MNTR || !flags)
return 0;
sdata->u.mntr_flags = *flags;
return 0;
}

56
net/mac80211/ieee80211.c
View File

@ -67,9 +67,19 @@ static void ieee80211_configure_filter(struct ieee80211_local *local)
new_flags |= FIF_ALLMULTI;
if (local->monitors)
new_flags |= FIF_CONTROL |
FIF_OTHER_BSS |
FIF_BCN_PRBRESP_PROMISC;
new_flags |= FIF_BCN_PRBRESP_PROMISC;
if (local->fif_fcsfail)
new_flags |= FIF_FCSFAIL;
if (local->fif_plcpfail)
new_flags |= FIF_PLCPFAIL;
if (local->fif_control)
new_flags |= FIF_CONTROL;
if (local->fif_other_bss)
new_flags |= FIF_OTHER_BSS;
changed_flags = local->filter_flags ^ new_flags;
@ -231,13 +241,21 @@ static int ieee80211_open(struct net_device *dev)
case IEEE80211_IF_TYPE_MNTR:
/* must be before the call to ieee80211_configure_filter */
local->monitors++;
if (local->monitors == 1) {
netif_tx_lock_bh(local->mdev);
ieee80211_configure_filter(local);
netif_tx_unlock_bh(local->mdev);
if (local->monitors == 1)
local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
}
if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
local->fif_fcsfail++;
if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
local->fif_plcpfail++;
if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
local->fif_control++;
if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
local->fif_other_bss++;
netif_tx_lock_bh(local->mdev);
ieee80211_configure_filter(local);
netif_tx_unlock_bh(local->mdev);
break;
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_IBSS:
@ -353,13 +371,21 @@ static int ieee80211_stop(struct net_device *dev)
break;
case IEEE80211_IF_TYPE_MNTR:
local->monitors--;
if (local->monitors == 0) {
netif_tx_lock_bh(local->mdev);
ieee80211_configure_filter(local);
netif_tx_unlock_bh(local->mdev);
if (local->monitors == 0)
local->hw.conf.flags &= ~IEEE80211_CONF_RADIOTAP;
}
if (sdata->u.mntr_flags & MONITOR_FLAG_FCSFAIL)
local->fif_fcsfail--;
if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
local->fif_plcpfail--;
if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
local->fif_control--;
if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
local->fif_other_bss--;
netif_tx_lock_bh(local->mdev);
ieee80211_configure_filter(local);
netif_tx_unlock_bh(local->mdev);
break;
case IEEE80211_IF_TYPE_STA:
case IEEE80211_IF_TYPE_IBSS:

3
net/mac80211/ieee80211_i.h
View File

@ -345,6 +345,7 @@ struct ieee80211_sub_if_data {
struct ieee80211_if_wds wds;
struct ieee80211_if_vlan vlan;
struct ieee80211_if_sta sta;
u32 mntr_flags;
} u;
int channel_use;
int channel_use_raw;
@ -425,6 +426,8 @@ struct ieee80211_local {
struct net_device *mdev; /* wmaster# - "master" 802.11 device */
int open_count;
int monitors;
/* number of interfaces with corresponding FIF_ flags */
int fif_fcsfail, fif_plcpfail, fif_control, fif_other_bss;
unsigned int filter_flags; /* FIF_* */
struct iw_statistics wstats;
u8 wstats_flags;

2
net/mac80211/ieee80211_iface.c
View File

@ -160,6 +160,8 @@ void ieee80211_if_set_type(struct net_device *dev, int type)
case IEEE80211_IF_TYPE_MNTR:
dev->type = ARPHRD_IEEE80211_RADIOTAP;
dev->hard_start_xmit = ieee80211_monitor_start_xmit;
sdata->u.mntr_flags = MONITOR_FLAG_CONTROL |
MONITOR_FLAG_OTHER_BSS;
break;
default:
printk(KERN_WARNING "%s: %s: Unknown interface type 0x%x",