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| author | Patrick McHardy <kaber@trash.net> | 2011-12-23 14:00:13 +0100 |
|---|---|---|
| committer | Pablo Neira Ayuso <pablo@netfilter.org> | 2011-12-23 14:36:44 +0100 |
| commit | 4d4e61c6ca683cdc0ea07d39c80cc8d6d478b31e (patch) | |
| tree | 6c7431f3649d5cc7bf726dab880f68d6f8a4728b /net/netfilter | |
| parent | cbc9f2f4fcd70d5a627558ca9a881fa9391abf69 (diff) | |
| download | lwn-4d4e61c6ca683cdc0ea07d39c80cc8d6d478b31e.tar.gz lwn-4d4e61c6ca683cdc0ea07d39c80cc8d6d478b31e.zip | |
netfilter: nf_nat: use hash random for bysource hash
Use nf_conntrack_hash_rnd in NAT bysource hash to avoid hash chain attacks.
Signed-off-by: Patrick McHardy <kaber@trash.net>
Acked-by: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Diffstat (limited to 'net/netfilter')
| -rw-r--r-- | net/netfilter/nf_conntrack_core.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c index 8b2842e321fb..b76090fd92c1 100644 --- a/net/netfilter/nf_conntrack_core.c +++ b/net/netfilter/nf_conntrack_core.c @@ -67,6 +67,7 @@ DEFINE_PER_CPU(struct nf_conn, nf_conntrack_untracked); EXPORT_PER_CPU_SYMBOL(nf_conntrack_untracked); unsigned int nf_conntrack_hash_rnd __read_mostly; +EXPORT_SYMBOL_GPL(nf_conntrack_hash_rnd); static u32 hash_conntrack_raw(const struct nf_conntrack_tuple *tuple, u16 zone) { |