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[NETFILTER]: nf_conntrack_expect: introduce nf_conntrack_expect_max sysct
authorPatrick McHardy <kaber@trash.net>
Sun, 8 Jul 2007 05:36:24 +0000 (22:36 -0700)
committerDavid S. Miller <davem@sunset.davemloft.net>
Wed, 11 Jul 2007 05:18:12 +0000 (22:18 -0700)
commitf264a7df08d50bb4a23be6a9aa06940e497ac1c4
treec07c92616a50107c2dacc5836626d4b6a12c57aetree | snapshot
parentb560580a13b180bc1e3cad7ffbc93388cc39be5dcommit | diff
[NETFILTER]: nf_conntrack_expect: introduce nf_conntrack_expect_max sysct

As a last step of preventing DoS by creating lots of expectations, this
patch introduces a global maximum and a sysctl to control it. The default
is initialized to 4 * the expectation hash table size, which results in
1/64 of the default maxmimum of conntracks.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
include/net/netfilter/nf_conntrack_expect.h diff | blob | history
net/netfilter/nf_conntrack_expect.c diff | blob | history
net/netfilter/nf_conntrack_standalone.c diff | blob | history
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