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| author |   Pavel Emelyanov <xemul@openvz.org> | 2008-01-31 05:05:50 -0800 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2008-01-31 19:28:18 -0800 |
| commit | 941b1d22cc035ad58b3d9b44a1c74efac2d7e499 (patch) | |
| tree | 9b50211c27a209c02d97b73f74bf33cc87f4c9c3 /net/ipv4/inet_hashtables.c | |
| parent | [INET]: Consolidate inet(6)_hash_connect. (diff) | |
| download | linux-dev-941b1d22cc035ad58b3d9b44a1c74efac2d7e499.tar.xz linux-dev-941b1d22cc035ad58b3d9b44a1c74efac2d7e499.zip | |
[NETNS]: Make bind buckets live in net namespaces.
This tags the inet_bind_bucket struct with net pointer,
initializes it during creation and makes a filtering
during lookup.
A better hashfn, that takes the net into account is to
be done in the future, but currently all bind buckets
with similar port will be in one hash chain.
Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/inet_hashtables.c')
| -rw-r--r-- | net/ipv4/inet_hashtables.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/net/ipv4/inet_hashtables.c b/net/ipv4/inet_hashtables.c index b93d40ff6ef4..db1e53a865c2 100644 --- a/net/ipv4/inet_hashtables.c +++ b/net/ipv4/inet_hashtables.c @@ -28,12 +28,14 @@ * The bindhash mutex for snum's hash chain must be held here. */ struct inet_bind_bucket *inet_bind_bucket_create(struct kmem_cache *cachep, + struct net *net, struct inet_bind_hashbucket *head, const unsigned short snum) { struct inet_bind_bucket *tb = kmem_cache_alloc(cachep, GFP_ATOMIC); if (tb != NULL) { + tb->ib_net = net; tb->port = snum; tb->fastreuse = 0; INIT_HLIST_HEAD(&tb->owners); @@ -359,6 +361,7 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row, struct inet_bind_hashbucket *head; struct inet_bind_bucket *tb; int ret; + struct net *net = sk->sk_net; if (!snum) { int i, remaining, low, high, port; @@ -381,7 +384,7 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row, * unique enough. */ inet_bind_bucket_for_each(tb, node, &head->chain) { - if (tb->port == port) { + if (tb->ib_net == net && tb->port == port) { BUG_TRAP(!hlist_empty(&tb->owners)); if (tb->fastreuse >= 0) goto next_port; @@ -392,7 +395,8 @@ int __inet_hash_connect(struct inet_timewait_death_row *death_row, } } - tb = inet_bind_bucket_create(hinfo->bind_bucket_cachep, head, port); + tb = inet_bind_bucket_create(hinfo->bind_bucket_cachep, + net, head, port); if (!tb) { spin_unlock(&head->lock); break; |