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  1. 11 7月, 2007 3 次提交
    • P
      [UDP]: Fix length check. · 3be550f3
      由 Patrick McHardy 提交于 
      Rémi Denis-Courmont wrote:
> Right. By the way, shouldn't "len" rather be signed in there?
> 
> 		unsigned int len;
> 
> 		/* if we're overly short, let UDP handle it */
> 		len = skb->len - sizeof(struct udphdr);
> 		if (len <= 0)
> 			goto udp;

It should, but the < 0 case can't happen since __udp4_lib_rcv
already makes sure that we have at least a complete UDP header.

Anyways, this patch fixes it.
Signed-off-by: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      3be550f3
    • J
      [UDP]: Cleanup UDP encapsulation code · 067b207b
      由 James Chapman 提交于 
      This cleanup fell out after adding L2TP support where a new encap_rcv
funcptr was added to struct udp_sock. Have XFRM use the new encap_rcv
funcptr, which allows us to move the XFRM encap code from udp.c into
xfrm4_input.c.

Make xfrm4_rcv_encap() static since it is no longer called externally.
Signed-off-by: NJames Chapman <jchapman@katalix.com>
Acked-by: NPatrick McHardy <kaber@trash.net>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      067b207b
    • J
      [UDP]: Introduce UDP encapsulation type for L2TP · 342f0234
      由 James Chapman 提交于 
      This patch adds a new UDP_ENCAP_L2TPINUDP encapsulation type for UDP
sockets. When a UDP socket's encap_type is UDP_ENCAP_L2TPINUDP, the
skb is delivered to a function pointed to by the udp_sock's
encap_rcv funcptr. If the skb isn't wanted by L2TP, it returns >0, which
causes it to be passed through to UDP.

Include padding to put the new encap_rcv field on a 4-byte boundary.

Previously, the only user of UDP encap sockets was ESP, so when
CONFIG_XFRM was not defined, some of the encap code was compiled
out. This patch changes that. As a result, udp_encap_rcv() will
now do a little more work when CONFIG_XFRM is not defined.
Signed-off-by: NJames Chapman <jchapman@katalix.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      342f0234
  3. 08 6月, 2007 1 次提交
  5. 04 6月, 2007 1 次提交
  7. 11 5月, 2007 1 次提交
  9. 09 5月, 2007 1 次提交
  11. 01 5月, 2007 2 次提交
  13. 30 4月, 2007 1 次提交
    • E
      [PATCH] INET : IPV4 UDP lookups converted to a 2 pass algo · 6aaf47fa
      由 Eric Dumazet 提交于 
      Some people want to have many UDP sockets, binded to a single port but
many different addresses. We currently hash all those sockets into a
single chain.  Processing of incoming packets is very expensive,
because the whole chain must be examined to find the best match.

I chose in this patch to hash UDP sockets with a hash function that
take into account both their port number and address : This has a
drawback because we need two lookups : one with a given address, one
with a wildcard (null) address.
Signed-off-by: NEric Dumazet <dada1@cosmosbay.com>
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      6aaf47fa
  15. 26 4月, 2007 11 次提交
  17. 08 3月, 2007 1 次提交
  19. 11 2月, 2007 2 次提交
  21. 09 2月, 2007 1 次提交
  23. 23 12月, 2006 1 次提交
    • D
      [UDP]: Fix reversed logic in udp_get_port(). · 5c668704
      由 David S. Miller 提交于 
      When this code was converted to use sk_for_each() the
logic for the "best hash chain length" code was reversed,
breaking everything.

The original code was of the form:

			size = 0;
			do {
				if (++size >= best_size_so_far)
					goto next;
			} while ((sk = sk->next) != NULL);
			best_size_so_far = size;
			best = result;
		next:;

and this got converted into:

			sk_for_each(sk2, node, head)
				if (++size < best_size_so_far) {
					best_size_so_far = size;
					best = result;
				}

Which does something very very different from the original.
Signed-off-by: NDavid S. Miller <davem@davemloft.net>
      5c668704
  25. 03 12月, 2006 7 次提交
  27. 26 11月, 2006 1 次提交
  29. 04 10月, 2006 1 次提交
  31. 29 9月, 2006 2 次提交
  33. 23 9月, 2006 3 次提交