diff options
| author |   Felix Fietkau <nbd@openwrt.org> | 2012-04-23 19:49:03 +0200 |
|---|---|---|
| committer |   John W. Linville <linville@tuxdriver.com> | 2012-04-24 14:54:28 -0400 |
| commit | 7e3ed02c6e65a0cb4c9259c0d34740305d9aa5e7 (patch) | |
| tree | 47a2a239639feaafd89729224d9e26492bb4eccd /net/mac80211/sta_info.c | |
| parent | mac80211: rename AP variable num_sta_authorized to num_mcast_sta (diff) | |
| download | linux-dev-7e3ed02c6e65a0cb4c9259c0d34740305d9aa5e7.tar.xz linux-dev-7e3ed02c6e65a0cb4c9259c0d34740305d9aa5e7.zip | |
mac80211: fix num_mcast_sta counting issues
Moving a STA to an AP VLAN prevents num_mcast_sta from being decremented
once the STA leaves, because sta->sdata changes. Fix this by checking
for AP VLANs as well.
Also exclude 4-addr VLAN stations from num_mcast_sta - remote 4-addr
stations ignore 3-address multicast frames anyway. In a typical bridge
configuration they receive the same packets as 4-address unicast.
This patch also fixes clearing the sdata->u.vlan.sta pointer when the
STA is removed from a 4-addr VLAN.
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211/sta_info.c')
| -rw-r--r-- | net/mac80211/sta_info.c | 12 |
1 files changed, 8 insertions, 4 deletions
diff --git a/net/mac80211/sta_info.c b/net/mac80211/sta_info.c index 4c04eb5e4cae..97a9d6639fb9 100644 --- a/net/mac80211/sta_info.c +++ b/net/mac80211/sta_info.c @@ -1417,15 +1417,19 @@ int sta_info_move_state(struct sta_info *sta, if (sta->sta_state == IEEE80211_STA_AUTH) { set_bit(WLAN_STA_ASSOC, &sta->_flags); } else if (sta->sta_state == IEEE80211_STA_AUTHORIZED) { - if (sta->sdata->vif.type == NL80211_IFTYPE_AP) - atomic_dec(&sta->sdata->u.ap.num_mcast_sta); + if (sta->sdata->vif.type == NL80211_IFTYPE_AP || + (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && + !sta->sdata->u.vlan.sta)) + atomic_dec(&sta->sdata->bss->num_mcast_sta); clear_bit(WLAN_STA_AUTHORIZED, &sta->_flags); } break; case IEEE80211_STA_AUTHORIZED: if (sta->sta_state == IEEE80211_STA_ASSOC) { - if (sta->sdata->vif.type == NL80211_IFTYPE_AP) - atomic_inc(&sta->sdata->u.ap.num_mcast_sta); + if (sta->sdata->vif.type == NL80211_IFTYPE_AP || + (sta->sdata->vif.type == NL80211_IFTYPE_AP_VLAN && + !sta->sdata->u.vlan.sta)) + atomic_inc(&sta->sdata->bss->num_mcast_sta); set_bit(WLAN_STA_AUTHORIZED, &sta->_flags); } break; |