summaryrefslogtreecommitdiffstats
path: root/include/linux/netfilter_ipv4/ipt_conntrack.h
diff options
context:
space:
mode:
Diffstat (limited to 'include/linux/netfilter_ipv4/ipt_conntrack.h')
-rw-r--r--include/linux/netfilter_ipv4/ipt_conntrack.h39
1 files changed, 39 insertions, 0 deletions
diff --git a/include/linux/netfilter_ipv4/ipt_conntrack.h b/include/linux/netfilter_ipv4/ipt_conntrack.h
new file mode 100644
index 0000000..eb97456
--- /dev/null
+++ b/include/linux/netfilter_ipv4/ipt_conntrack.h
@@ -0,0 +1,39 @@
+/* Header file for kernel module to match connection tracking information.
+ * GPL (C) 2001 Marc Boucher (marc@mbsi.ca).
+ */
+
+#ifndef _IPT_CONNTRACK_H
+#define _IPT_CONNTRACK_H
+
+#define IPT_CONNTRACK_STATE_BIT(ctinfo) (1 << ((ctinfo)%IP_CT_IS_REPLY+1))
+#define IPT_CONNTRACK_STATE_INVALID (1 << 0)
+
+#define IPT_CONNTRACK_STATE_SNAT (1 << (IP_CT_NUMBER + 1))
+#define IPT_CONNTRACK_STATE_DNAT (1 << (IP_CT_NUMBER + 2))
+
+/* flags, invflags: */
+#define IPT_CONNTRACK_STATE 0x01
+#define IPT_CONNTRACK_PROTO 0x02
+#define IPT_CONNTRACK_ORIGSRC 0x04
+#define IPT_CONNTRACK_ORIGDST 0x08
+#define IPT_CONNTRACK_REPLSRC 0x10
+#define IPT_CONNTRACK_REPLDST 0x20
+#define IPT_CONNTRACK_STATUS 0x40
+#define IPT_CONNTRACK_EXPIRES 0x80
+
+struct ipt_conntrack_info
+{
+ unsigned int statemask, statusmask;
+
+ struct ip_conntrack_tuple tuple[IP_CT_DIR_MAX];
+ struct in_addr sipmsk[IP_CT_DIR_MAX], dipmsk[IP_CT_DIR_MAX];
+
+ unsigned long expires_min, expires_max;
+
+ /* Flags word */
+ u_int8_t flags;
+ /* Inverse flags */
+ u_int8_t invflags;
+};
+#endif /*_IPT_CONNTRACK_H*/
+