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authorJan Engelhardt <jengelh@medozas.de>2009-02-21 04:42:32 +0100
committerJan Engelhardt <jengelh@medozas.de>2009-02-21 04:42:32 +0100
commit978e27e8f8c2e49d0528c6c4ae3a56627fbe8492 (patch)
treeb0de4c35b0d209b450cb86e022ce7552c3e778e8 /include/net/netfilter/nf_conntrack_tuple.h
parentda68957303dea58632466d79d52f83bcbbca8925 (diff)
include: resynchronize headers with 2.6.29-rc5
Signed-off-by: Jan Engelhardt <jengelh@medozas.de>
Diffstat (limited to 'include/net/netfilter/nf_conntrack_tuple.h')
-rw-r--r--include/net/netfilter/nf_conntrack_tuple.h114
1 files changed, 114 insertions, 0 deletions
diff --git a/include/net/netfilter/nf_conntrack_tuple.h b/include/net/netfilter/nf_conntrack_tuple.h
new file mode 100644
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+++ b/include/net/netfilter/nf_conntrack_tuple.h
@@ -0,0 +1,114 @@
+/* This file was manually copied from the Linux kernel source
+ * and manually stripped from __KERNEL__ sections and unused functions.
+ */
+
+/*
+ * Definitions and Declarations for tuple.
+ *
+ * 16 Dec 2003: Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
+ * - generalize L3 protocol dependent part.
+ *
+ * Derived from include/linux/netfiter_ipv4/ip_conntrack_tuple.h
+ */
+
+#ifndef _NF_CONNTRACK_TUPLE_H
+#define _NF_CONNTRACK_TUPLE_H
+
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/nf_conntrack_tuple_common.h>
+
+/* A `tuple' is a structure containing the information to uniquely
+ identify a connection. ie. if two packets have the same tuple, they
+ are in the same connection; if not, they are not.
+
+ We divide the structure along "manipulatable" and
+ "non-manipulatable" lines, for the benefit of the NAT code.
+*/
+
+#define NF_CT_TUPLE_L3SIZE ARRAY_SIZE(((union nf_inet_addr *)NULL)->all)
+
+/* The protocol-specific manipulable parts of the tuple: always in
+ network order! */
+union nf_conntrack_man_proto
+{
+ /* Add other protocols here. */
+ __be16 all;
+
+ struct {
+ __be16 port;
+ } tcp;
+ struct {
+ __be16 port;
+ } udp;
+ struct {
+ __be16 id;
+ } icmp;
+ struct {
+ __be16 port;
+ } dccp;
+ struct {
+ __be16 port;
+ } sctp;
+ struct {
+ __be16 key; /* GRE key is 32bit, PPtP only uses 16bit */
+ } gre;
+};
+
+/* The manipulable part of the tuple. */
+struct nf_conntrack_man
+{
+ union nf_inet_addr u3;
+ union nf_conntrack_man_proto u;
+ /* Layer 3 protocol */
+ u_int16_t l3num;
+};
+
+/* This contains the information to distinguish a connection. */
+struct nf_conntrack_tuple
+{
+ struct nf_conntrack_man src;
+
+ /* These are the parts of the tuple which are fixed. */
+ struct {
+ union nf_inet_addr u3;
+ union {
+ /* Add other protocols here. */
+ __be16 all;
+
+ struct {
+ __be16 port;
+ } tcp;
+ struct {
+ __be16 port;
+ } udp;
+ struct {
+ u_int8_t type, code;
+ } icmp;
+ struct {
+ __be16 port;
+ } dccp;
+ struct {
+ __be16 port;
+ } sctp;
+ struct {
+ __be16 key;
+ } gre;
+ } u;
+
+ /* The protocol. */
+ u_int8_t protonum;
+
+ /* The direction (for tuplehash) */
+ u_int8_t dir;
+ } dst;
+};
+
+struct nf_conntrack_tuple_mask
+{
+ struct {
+ union nf_inet_addr u3;
+ union nf_conntrack_man_proto u;
+ } src;
+};
+
+#endif /* _NF_CONNTRACK_TUPLE_H */