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[SECMARK]: Add secmark support to conntrack

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Add a secmark field to IP and NF conntracks, so that security markings
on packets can be copied to their associated connections, and also
copied back to packets as required.  This is similar to the network
mark field currently used with conntrack, although it is intended for
enforcement of security policy rather than network policy.

Signed-off-by: James Morris <jmorris@namei.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
James Morris
2006-06-09 00:31:46 -07:00
committed by David S. Miller
parent 5e6874cdb8
commit 7c9728c393
9 changed files with 74 additions and 0 deletions
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4
include/linux/netfilter_ipv4/ip_conntrack.h
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@@ -121,6 +121,10 @@ struct ip_conntrack
u_int32_t mark;
#endif
#ifdef CONFIG_IP_NF_CONNTRACK_SECMARK
u_int32_t secmark;
#endif
/* Traversed often, so hopefully in different cacheline to top */
/* These are my tuples; original and reply */
struct ip_conntrack_tuple_hash tuplehash[IP_CT_DIR_MAX];