diff options
| author | Patrick McHardy <kaber@trash.net> | 2009-12-15 15:59:18 (GMT) |
|---|---|---|
| committer | Patrick McHardy <kaber@trash.net> | 2009-12-15 15:59:18 (GMT) |
| commit | 0b5ccb2ee250136dd7385b1c7da28417d0d4d32d (patch) | |
| tree | b0630141672471d5c800867cd8dbee425308bc73 /net/ipv6/reassembly.c | |
| parent | 9abfe315de96aa5c9878b2f627542bc54901c6e9 (diff) | |
| download | linux-0b5ccb2ee250136dd7385b1c7da28417d0d4d32d.tar.xz | |
ipv6: reassembly: use seperate reassembly queues for conntrack and local delivery
Currently the same reassembly queue might be used for packets reassembled
by conntrack in different positions in the stack (PREROUTING/LOCAL_OUT),
as well as local delivery. This can cause "packet jumps" when the fragment
completing a reassembled packet is queued from a different position in the
stack than the previous ones.
Add a "user" identifier to the reassembly queue key to seperate the queues
of each caller, similar to what we do for IPv4.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'net/ipv6/reassembly.c')
| -rw-r--r-- | net/ipv6/reassembly.c | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index 4d98549..3b3a956 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -72,6 +72,7 @@ struct frag_queue struct inet_frag_queue q; __be32 id; /* fragment id */ + u32 user; struct in6_addr saddr; struct in6_addr daddr; @@ -141,7 +142,7 @@ int ip6_frag_match(struct inet_frag_queue *q, void *a) struct ip6_create_arg *arg = a; fq = container_of(q, struct frag_queue, q); - return (fq->id == arg->id && + return (fq->id == arg->id && fq->user == arg->user && ipv6_addr_equal(&fq->saddr, arg->src) && ipv6_addr_equal(&fq->daddr, arg->dst)); } @@ -163,6 +164,7 @@ void ip6_frag_init(struct inet_frag_queue *q, void *a) struct ip6_create_arg *arg = a; fq->id = arg->id; + fq->user = arg->user; ipv6_addr_copy(&fq->saddr, arg->src); ipv6_addr_copy(&fq->daddr, arg->dst); } @@ -243,6 +245,7 @@ fq_find(struct net *net, __be32 id, struct in6_addr *src, struct in6_addr *dst, unsigned int hash; arg.id = id; + arg.user = IP6_DEFRAG_LOCAL_DELIVER; arg.src = src; arg.dst = dst; |