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authorFelix Fietkau <nbd@openwrt.org>2011-04-12 19:15:22 +0200
committerJohn W. Linville <linville@tuxdriver.com>2011-04-13 15:21:52 -0400
commit4114fa21465ec7ee9526173676d3122a98bbbbd8 (patch)
tree761752ef28dd58cc7053b2aff456a49e7362aaca /net
parent8e26a0303614e766f993b1ac4a5bfbf80436d9dd (diff)
downloadlinux-4114fa21465ec7ee9526173676d3122a98bbbbd8.tar.bz2
mac80211: receive EAP frames from a station in an AP VLAN on the main AP
This makes it easier to handle moving stations to VLAN interfaces that are part of a different bridge. Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
-rw-r--r--net/mac80211/rx.c20
1 files changed, 16 insertions, 4 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 359fc394a3b0..54858a68abd7 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1586,7 +1586,7 @@ ieee80211_drop_unencrypted_mgmt(struct ieee80211_rx_data *rx)
}
static int
-__ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
+__ieee80211_data_to_8023(struct ieee80211_rx_data *rx, bool *port_control)
{
struct ieee80211_sub_if_data *sdata = rx->sdata;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
@@ -1594,6 +1594,7 @@ __ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
struct ethhdr *ehdr;
int ret;
+ *port_control = false;
if (ieee80211_has_a4(hdr->frame_control) &&
sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta)
return -1;
@@ -1612,11 +1613,13 @@ __ieee80211_data_to_8023(struct ieee80211_rx_data *rx)
return -1;
ret = ieee80211_data_to_8023(rx->skb, sdata->vif.addr, sdata->vif.type);
- if (ret < 0 || !check_port_control)
+ if (ret < 0)
return ret;
ehdr = (struct ethhdr *) rx->skb->data;
- if (ehdr->h_proto != rx->sdata->control_port_protocol)
+ if (ehdr->h_proto == rx->sdata->control_port_protocol)
+ *port_control = true;
+ else if (check_port_control)
return -1;
return 0;
@@ -1917,6 +1920,7 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx)
struct net_device *dev = sdata->dev;
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data;
__le16 fc = hdr->frame_control;
+ bool port_control;
int err;
if (unlikely(!ieee80211_is_data(hdr->frame_control)))
@@ -1933,13 +1937,21 @@ ieee80211_rx_h_data(struct ieee80211_rx_data *rx)
sdata->vif.type == NL80211_IFTYPE_AP)
return RX_DROP_MONITOR;
- err = __ieee80211_data_to_8023(rx);
+ err = __ieee80211_data_to_8023(rx, &port_control);
if (unlikely(err))
return RX_DROP_UNUSABLE;
if (!ieee80211_frame_allowed(rx, fc))
return RX_DROP_MONITOR;
+ if (rx->sdata->vif.type == NL80211_IFTYPE_AP_VLAN &&
+ unlikely(port_control) && sdata->bss) {
+ sdata = container_of(sdata->bss, struct ieee80211_sub_if_data,
+ u.ap);
+ dev = sdata->dev;
+ rx->sdata = sdata;
+ }
+
rx->skb->dev = dev;
dev->stats.rx_packets++;