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| author | Stephen Hemminger <shemminger@osdl.org> | 2006-05-25 15:10:02 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-06-17 21:26:06 -0700 |
| commit | 8f182b494f87799d6ae20a1401825c516da46081 (patch) | |
| tree | 509fc735e59cb1094cd68029a9e0a4b9a9a01e86 /net/llc | |
| parent | 23dbe7912dad6be71bb9e69cb819d05e2442d362 (diff) | |
| download | lwn-8f182b494f87799d6ae20a1401825c516da46081.tar.gz lwn-8f182b494f87799d6ae20a1401825c516da46081.zip | |
[LLC]: allow applications to get copy of kernel datagrams
It is legal for an application to bind to a SAP that is also being
used by the kernel. This happens if the bridge module binds to the
STP SAP, and the user wants to have a daemon for STP as well.
It is possible to have kernel doing STP on one bridge, but
let application do RSTP on another bridge.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/llc')
| -rw-r--r-- | net/llc/llc_input.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/net/llc/llc_input.c b/net/llc/llc_input.c index cb9f7f058f75..32cf8ac8ea80 100644 --- a/net/llc/llc_input.c +++ b/net/llc/llc_input.c @@ -173,8 +173,10 @@ int llc_rcv(struct sk_buff *skb, struct net_device *dev, */ rcv = rcu_dereference(sap->rcv_func); if (rcv) { + struct sk_buff *cskb = skb_clone(skb, GFP_ATOMIC); + if (cskb) + rcv(cskb, dev, pt, orig_dev); rcv(skb, dev, pt, orig_dev); - goto out_put; } dest = llc_pdu_type(skb); if (unlikely(!dest || !llc_type_handlers[dest - 1])) |