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[NETFILTER]: Add support for permanent expectations

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A permanent expectation exists until timeing out and can expect
multiple related connections.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Patrick McHardy 2005-09-06 15:06:42 -07:00 • committed by David S. Miller
parent 9261c9b042
commit 2248bcfcd8
7 changed files with 18 additions and 4 deletions
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5
include/linux/netfilter_ipv4/ip_conntrack.h
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@ -263,6 +263,9 @@ struct ip_conntrack_expect
/* Unique ID */
unsigned int id;
/* Flags */
unsigned int flags;
#ifdef CONFIG_IP_NF_NAT_NEEDED
/* This is the original per-proto part, used to map the
* expected connection the way the recipient expects. */
@ -272,6 +275,8 @@ struct ip_conntrack_expect
#endif
};
#define IP_CT_EXPECT_PERMANENT 0x1
static inline struct ip_conntrack *
tuplehash_to_ctrack(const struct ip_conntrack_tuple_hash *hash)
{