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authorPatrick McHardy <kaber@trash.net>2009-04-16 18:33:01 +0200
committerPatrick McHardy <kaber@trash.net>2009-04-16 18:33:01 +0200
commit98d500d66cb7940747b424b245fc6a51ecfbf005 (patch)
tree0c5d745901be7aab151071829a8dc6fac193fb30 /include
parent38fb0afcd8761f8858e27135ed89a65117e2019c (diff)
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netfilter: nf_nat: add support for persistent mappings
The removal of the SAME target accidentally removed one feature that is not available from the normal NAT targets so far, having multi-range mappings that use the same mapping for each connection from a single client. The current behaviour is to choose the address from the range based on source and destination IP, which breaks when communicating with sites having multiple addresses that require all connections to originate from the same IP address. Introduce a IP_NAT_RANGE_PERSISTENT option that controls whether the destination address is taken into account for selecting addresses. http://bugzilla.kernel.org/show_bug.cgi?id=12954 Signed-off-by: Patrick McHardy <kaber@trash.net>
Diffstat (limited to 'include')
-rw-r--r--include/net/netfilter/nf_nat.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_nat.h b/include/net/netfilter/nf_nat.h
index 9dc1039ff78..8df0b7f7fc6 100644
--- a/include/net/netfilter/nf_nat.h
+++ b/include/net/netfilter/nf_nat.h
@@ -18,6 +18,7 @@ enum nf_nat_manip_type
#define IP_NAT_RANGE_MAP_IPS 1
#define IP_NAT_RANGE_PROTO_SPECIFIED 2
#define IP_NAT_RANGE_PROTO_RANDOM 4
+#define IP_NAT_RANGE_PERSISTENT 8
/* NAT sequence number modifications */
struct nf_nat_seq {