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sctp: Make the association hashtable handle multiple network namespaces

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- Use struct net in the hash calculation
- Use sock_net(association.base.sk) in the association lookups.
- On receive calculate the network namespace from skb->dev.
- Pass struct net from receive down to the functions that actually
  do the association lookup.

Signed-off-by: "Eric W. Biederman" <ebiederm@xmission.com>
Acked-by: Vlad Yasevich <vyasevich@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Eric W. Biederman
2012-08-06 08:41:13 +00:00
committed by David S. Miller
parent 4cdadcbcb6
commit 4110cc255d
6 changed files with 54 additions and 32 deletions
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6
net/sctp/endpointola.c
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@@ -345,7 +345,8 @@ static struct sctp_association *__sctp_endpoint_lookup_assoc(
rport = ntohs(paddr->v4.sin_port);
hash = sctp_assoc_hashfn(ep->base.bind_addr.port, rport);
hash = sctp_assoc_hashfn(sock_net(ep->base.sk), ep->base.bind_addr.port,
rport);
head = &sctp_assoc_hashtable[hash];
read_lock(&head->lock);
sctp_for_each_hentry(epb, node, &head->chain) {
@@ -388,13 +389,14 @@ int sctp_endpoint_is_peeled_off(struct sctp_endpoint *ep,
{
struct sctp_sockaddr_entry *addr;
struct sctp_bind_addr *bp;
struct net *net = sock_net(ep->base.sk);
bp = &ep->base.bind_addr;
/* This function is called with the socket lock held,
* so the address_list can not change.
*/
list_for_each_entry(addr, &bp->address_list, list) {
if (sctp_has_association(&addr->a, paddr))
if (sctp_has_association(net, &addr->a, paddr))
return 1;
}