diff options
| author |   Guy Cohen <guy.cohen@intel.com> | 2008-01-09 19:12:48 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-01-28 15:10:41 -0800 |
| commit | a8bdf29c6cd117644d27677962fe832b33036c77 (patch) | |
| tree | 4d678ea8b9c670374cf3e1defec1f30c5661c735 /net | |
| parent | [DST]: shrinks sizeof(struct rtable) by 64 bytes on x86_64 (diff) | |
| download | linux-dev-a8bdf29c6cd117644d27677962fe832b33036c77.tar.xz linux-dev-a8bdf29c6cd117644d27677962fe832b33036c77.zip | |
mac80211: Assign correct TID for local bridged packets
This patch assigns correct TID to frames transmitted between
two stations in the same BSS in AP mode.
The problem is that skb->protocol is not set to ETH_P_IP and it is wrong
to use that field at this stage.
The fix compares the LLC/Protocol headers explicitly to check if the
encapsulated frame is IP frame
Signed-off-by: Guy Cohen <guy.cohen@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/wme.c | 9 |
1 files changed, 5 insertions, 4 deletions
diff --git a/net/mac80211/wme.c b/net/mac80211/wme.c index 455fadc3d84e..024519522d37 100644 --- a/net/mac80211/wme.c +++ b/net/mac80211/wme.c @@ -28,6 +28,7 @@ struct ieee80211_sched_data struct sk_buff_head requeued[TC_80211_MAX_QUEUES]; }; +static const char llc_ip_hdr[8] = {0xAA, 0xAA, 0x3, 0, 0, 0, 0x08, 0}; /* given a data frame determine the 802.1p/1d tag to use */ static inline unsigned classify_1d(struct sk_buff *skb, struct Qdisc *qd) @@ -54,12 +55,12 @@ static inline unsigned classify_1d(struct sk_buff *skb, struct Qdisc *qd) return skb->priority - 256; /* check there is a valid IP header present */ - offset = ieee80211_get_hdrlen_from_skb(skb) + 8 /* LLC + proto */; - if (skb->protocol != htons(ETH_P_IP) || - skb->len < offset + sizeof(*ip)) + offset = ieee80211_get_hdrlen_from_skb(skb); + if (skb->len < offset + sizeof(llc_ip_hdr) + sizeof(*ip) || + memcmp(skb->data + offset, llc_ip_hdr, sizeof(llc_ip_hdr))) return 0; - ip = (struct iphdr *) (skb->data + offset); + ip = (struct iphdr *) (skb->data + offset + sizeof(llc_ip_hdr)); dscp = ip->tos & 0xfc; if (dscp & 0x1c) |