[NETFILTER]: nf_conntrack: introduce expectation classes and policies

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Introduce expectation classes and policies. An expectation class
is used to distinguish different types of expectations by the
same helper (for example audio/video/t.120). The expectation
policy is used to hold the maximum number of expectations and
the initial timeout for each class.

The individual classes are isolated from each other, which means
that for example an audio expectation will only evict other audio
expectations.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

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Patrick McHardy 2008-03-25 20:09:15 -07:00 • committed by David S. Miller

parent 359b9ab614

commit 6002f266b3

15 changed files with 166 additions and 77 deletions

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5

include/net/netfilter/nf_conntrack.h

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13

include/net/netfilter/nf_conntrack_expect.h

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5

include/net/netfilter/nf_conntrack_helper.h

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