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authorPavel Emelyanov <xemul@openvz.org>2008-01-22 06:02:14 -0800
committerDavid S. Miller <davem@davemloft.net>2008-01-28 15:10:34 -0800
commitac18e7509e7df327e30d6e073a787d922eaf211d (patch)
tree26be1582b59956c389a667d5426fdc538072795b /net/ipv4/ip_fragment.c
parent8d8354d2fb9277f165715a6e1cb92bcc89259975 (diff)
[NETNS][FRAGS]: Make the inet_frag_queue lookup work in namespaces.
Since fragment management code is consolidated, we cannot have the pointer from inet_frag_queue to struct net, since we must know what king of fragment this is. So, I introduce the netns_frags structure. This one is currently empty, but will be eventually filled with per-namespace attributes. Each inet_frag_queue is tagged with this one. The conntrack_reasm is not "netns-izated", so it has one static netns_frags instance to keep working in init namespace. Signed-off-by: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4/ip_fragment.c')
-rw-r--r--net/ipv4/ip_fragment.c8
1 files changed, 5 insertions, 3 deletions
diff --git a/net/ipv4/ip_fragment.c b/net/ipv4/ip_fragment.c
index a53463e594b..56211ef46ee 100644
--- a/net/ipv4/ip_fragment.c
+++ b/net/ipv4/ip_fragment.c
@@ -236,7 +236,7 @@ out:
/* Find the correct entry in the "incomplete datagrams" queue for
* this IP datagram, and create new one, if nothing is found.
*/
-static inline struct ipq *ip_find(struct iphdr *iph, u32 user)
+static inline struct ipq *ip_find(struct net *net, struct iphdr *iph, u32 user)
{
struct inet_frag_queue *q;
struct ip4_create_arg arg;
@@ -246,7 +246,7 @@ static inline struct ipq *ip_find(struct iphdr *iph, u32 user)
arg.user = user;
hash = ipqhashfn(iph->id, iph->saddr, iph->daddr, iph->protocol);
- q = inet_frag_find(&ip4_frags, &arg, hash);
+ q = inet_frag_find(&net->ipv4.frags, &ip4_frags, &arg, hash);
if (q == NULL)
goto out_nomem;
@@ -582,15 +582,17 @@ out_fail:
int ip_defrag(struct sk_buff *skb, u32 user)
{
struct ipq *qp;
+ struct net *net;
IP_INC_STATS_BH(IPSTATS_MIB_REASMREQDS);
+ net = skb->dev->nd_net;
/* Start by cleaning up the memory. */
if (atomic_read(&ip4_frags.mem) > ip4_frags_ctl.high_thresh)
ip_evictor();
/* Lookup (or create) queue header */
- if ((qp = ip_find(ip_hdr(skb), user)) != NULL) {
+ if ((qp = ip_find(net, ip_hdr(skb), user)) != NULL) {
int ret;
spin_lock(&qp->q.lock);