Merge commit 'origin/trunk@12184' into fedora

[iptables.git] / trunk / include / linux / netfilter / nf_conntrack_common.h

diff --git a/trunk/include/linux/netfilter/nf_conntrack_common.h b/trunk/include/linux/netfilter/nf_conntrack_common.h
new file mode 100644 (file)
index 0000000..b887a99
--- /dev/null
+++ b/trunk/include/linux/netfilter/nf_conntrack_common.h
@@ -0,0 +1,148 @@
+#ifndef _NF_CONNTRACK_COMMON_H
+#define _NF_CONNTRACK_COMMON_H
+/* Connection state tracking for netfilter.  This is separated from,
+   but required by, the NAT layer; it can also be used by an iptables
+   extension. */
+enum ip_conntrack_info
+{
+       /* Part of an established connection (either direction). */
+       IP_CT_ESTABLISHED,
+
+       /* Like NEW, but related to an existing connection, or ICMP error
+          (in either direction). */
+       IP_CT_RELATED,
+
+       /* Started a new connection to track (only
+           IP_CT_DIR_ORIGINAL); may be a retransmission. */
+       IP_CT_NEW,
+
+       /* >= this indicates reply direction */
+       IP_CT_IS_REPLY,
+
+       /* Number of distinct IP_CT types (no NEW in reply dirn). */
+       IP_CT_NUMBER = IP_CT_IS_REPLY * 2 - 1
+};
+
+/* Bitset representing status of connection. */
+enum ip_conntrack_status {
+       /* It's an expected connection: bit 0 set.  This bit never changed */
+       IPS_EXPECTED_BIT = 0,
+       IPS_EXPECTED = (1 << IPS_EXPECTED_BIT),
+
+       /* We've seen packets both ways: bit 1 set.  Can be set, not unset. */
+       IPS_SEEN_REPLY_BIT = 1,
+       IPS_SEEN_REPLY = (1 << IPS_SEEN_REPLY_BIT),
+
+       /* Conntrack should never be early-expired. */
+       IPS_ASSURED_BIT = 2,
+       IPS_ASSURED = (1 << IPS_ASSURED_BIT),
+
+       /* Connection is confirmed: originating packet has left box */
+       IPS_CONFIRMED_BIT = 3,
+       IPS_CONFIRMED = (1 << IPS_CONFIRMED_BIT),
+
+       /* Connection needs src nat in orig dir.  This bit never changed. */
+       IPS_SRC_NAT_BIT = 4,
+       IPS_SRC_NAT = (1 << IPS_SRC_NAT_BIT),
+
+       /* Connection needs dst nat in orig dir.  This bit never changed. */
+       IPS_DST_NAT_BIT = 5,
+       IPS_DST_NAT = (1 << IPS_DST_NAT_BIT),
+
+       /* Both together. */
+       IPS_NAT_MASK = (IPS_DST_NAT | IPS_SRC_NAT),
+
+       /* Connection needs TCP sequence adjusted. */
+       IPS_SEQ_ADJUST_BIT = 6,
+       IPS_SEQ_ADJUST = (1 << IPS_SEQ_ADJUST_BIT),
+
+       /* NAT initialization bits. */
+       IPS_SRC_NAT_DONE_BIT = 7,
+       IPS_SRC_NAT_DONE = (1 << IPS_SRC_NAT_DONE_BIT),
+
+       IPS_DST_NAT_DONE_BIT = 8,
+       IPS_DST_NAT_DONE = (1 << IPS_DST_NAT_DONE_BIT),
+
+       /* Both together */
+       IPS_NAT_DONE_MASK = (IPS_DST_NAT_DONE | IPS_SRC_NAT_DONE),
+
+       /* Connection is dying (removed from lists), can not be unset. */
+       IPS_DYING_BIT = 9,
+       IPS_DYING = (1 << IPS_DYING_BIT),
+
+       /* Connection has fixed timeout. */
+       IPS_FIXED_TIMEOUT_BIT = 10,
+       IPS_FIXED_TIMEOUT = (1 << IPS_FIXED_TIMEOUT_BIT),
+};
+
+/* Connection tracking event bits */
+enum ip_conntrack_events
+{
+       /* New conntrack */
+       IPCT_NEW_BIT = 0,
+       IPCT_NEW = (1 << IPCT_NEW_BIT),
+
+       /* Expected connection */
+       IPCT_RELATED_BIT = 1,
+       IPCT_RELATED = (1 << IPCT_RELATED_BIT),
+
+       /* Destroyed conntrack */
+       IPCT_DESTROY_BIT = 2,
+       IPCT_DESTROY = (1 << IPCT_DESTROY_BIT),
+
+       /* Timer has been refreshed */
+       IPCT_REFRESH_BIT = 3,
+       IPCT_REFRESH = (1 << IPCT_REFRESH_BIT),
+
+       /* Status has changed */
+       IPCT_STATUS_BIT = 4,
+       IPCT_STATUS = (1 << IPCT_STATUS_BIT),
+
+       /* Update of protocol info */
+       IPCT_PROTOINFO_BIT = 5,
+       IPCT_PROTOINFO = (1 << IPCT_PROTOINFO_BIT),
+
+       /* Volatile protocol info */
+       IPCT_PROTOINFO_VOLATILE_BIT = 6,
+       IPCT_PROTOINFO_VOLATILE = (1 << IPCT_PROTOINFO_VOLATILE_BIT),
+
+       /* New helper for conntrack */
+       IPCT_HELPER_BIT = 7,
+       IPCT_HELPER = (1 << IPCT_HELPER_BIT),
+
+       /* Update of helper info */
+       IPCT_HELPINFO_BIT = 8,
+       IPCT_HELPINFO = (1 << IPCT_HELPINFO_BIT),
+
+       /* Volatile helper info */
+       IPCT_HELPINFO_VOLATILE_BIT = 9,
+       IPCT_HELPINFO_VOLATILE = (1 << IPCT_HELPINFO_VOLATILE_BIT),
+
+       /* NAT info */
+       IPCT_NATINFO_BIT = 10,
+       IPCT_NATINFO = (1 << IPCT_NATINFO_BIT),
+
+       /* Counter highest bit has been set */
+       IPCT_COUNTER_FILLING_BIT = 11,
+       IPCT_COUNTER_FILLING = (1 << IPCT_COUNTER_FILLING_BIT),
+
+       /* Mark is set */
+       IPCT_MARK_BIT = 12,
+       IPCT_MARK = (1 << IPCT_MARK_BIT),
+
+       /* NAT sequence adjustment */
+       IPCT_NATSEQADJ_BIT = 13,
+       IPCT_NATSEQADJ = (1 << IPCT_NATSEQADJ_BIT),
+
+       /* Secmark is set */
+       IPCT_SECMARK_BIT = 14,
+       IPCT_SECMARK = (1 << IPCT_SECMARK_BIT),
+};
+
+enum ip_conntrack_expect_events {
+       IPEXP_NEW_BIT = 0,
+       IPEXP_NEW = (1 << IPEXP_NEW_BIT),
+};
+
+
+#endif /* _NF_CONNTRACK_COMMON_H */