diff options
author | David S. Miller <davem@davemloft.net> | 2011-01-27 16:00:37 -0800 |
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committer | David S. Miller <davem@davemloft.net> | 2011-01-27 16:00:37 -0800 |
commit | 8571a19c4ac140f1a507f3e7eb716892afa27109 (patch) | |
tree | 55ef6a0ab68d6388177d3290a7fd6bc3f12a381f /net/mac80211/rx.c | |
parent | sungem: Use net_device's internal stats (diff) | |
parent | ath9k: fix misplaced debug code (diff) | |
download | linux-dev-8571a19c4ac140f1a507f3e7eb716892afa27109.tar.xz linux-dev-8571a19c4ac140f1a507f3e7eb716892afa27109.zip |
Merge branch 'master' of ssh://master.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
Diffstat (limited to 'net/mac80211/rx.c')
-rw-r--r-- | net/mac80211/rx.c | 27 |
1 files changed, 23 insertions, 4 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index a6701ed87f0d..f36d70f5b062 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -1556,17 +1556,36 @@ __ieee80211_data_to_8023(struct ieee80211_rx_data *rx) { struct ieee80211_sub_if_data *sdata = rx->sdata; struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data; + bool check_port_control = false; + struct ethhdr *ehdr; + int ret; if (ieee80211_has_a4(hdr->frame_control) && sdata->vif.type == NL80211_IFTYPE_AP_VLAN && !sdata->u.vlan.sta) return -1; + if (sdata->vif.type == NL80211_IFTYPE_STATION && + !!sdata->u.mgd.use_4addr != !!ieee80211_has_a4(hdr->frame_control)) { + + if (!sdata->u.mgd.use_4addr) + return -1; + else + check_port_control = true; + } + if (is_multicast_ether_addr(hdr->addr1) && - ((sdata->vif.type == NL80211_IFTYPE_AP_VLAN && sdata->u.vlan.sta) || - (sdata->vif.type == NL80211_IFTYPE_STATION && sdata->u.mgd.use_4addr))) + sdata->vif.type == NL80211_IFTYPE_AP_VLAN && sdata->u.vlan.sta) return -1; - return ieee80211_data_to_8023(rx->skb, sdata->vif.addr, sdata->vif.type); + ret = ieee80211_data_to_8023(rx->skb, sdata->vif.addr, sdata->vif.type); + if (ret < 0 || !check_port_control) + return ret; + + ehdr = (struct ethhdr *) rx->skb->data; + if (ehdr->h_proto != rx->sdata->control_port_protocol) + return -1; + + return 0; } /* @@ -2692,7 +2711,7 @@ static bool ieee80211_prepare_and_rx_handle(struct ieee80211_rx_data *rx, if (!skb) { if (net_ratelimit()) wiphy_debug(local->hw.wiphy, - "failed to copy multicast frame for %s\n", + "failed to copy skb for %s\n", sdata->name); return true; } |