diff options
| author | Aubrey Li <aubreylee@gmail.com> | 2007-04-20 01:40:19 +0200 |
|---|---|---|
| committer | Adrian Bunk <bunk@stusta.de> | 2007-04-20 01:40:19 +0200 |
| commit | 691d4b9f4f4479edb4c3c63c7dbf5c5fa1ce0979 (patch) | |
| tree | e8ea595e2c351c5c2ced58db868954cfcfb025c6 | |
| parent | f1e0381bf5d781ee6c03ec7ddaa91e950869e472 (diff) | |
[NET]: Fix UDP checksum issue in net poll mode.
In net poll mode, the current checksum function doesn't consider the
kind of packet which is padded to reach a specific minimum length. I
believe that's the problem causing my test case failed. The following
patch fixed this issue.
Signed-off-by: Aubrey Li <aubreylee@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Adrian Bunk <bunk@stusta.de>
| -rw-r--r-- | net/core/netpoll.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/net/core/netpoll.c b/net/core/netpoll.c index ea51f8d02eb..62753d3afc7 100644 --- a/net/core/netpoll.c +++ b/net/core/netpoll.c @@ -485,6 +485,13 @@ int __netpoll_rx(struct sk_buff *skb) if (skb->len < len || len < iph->ihl*4) goto out; + /* + * Our transport medium may have padded the buffer out. + * Now We trim to the true length of the frame. + */ + if (pskb_trim_rcsum(skb, len)) + goto out; + if (iph->protocol != IPPROTO_UDP) goto out; |