http://www.ousob.com --- Legacy Redefined OuSob - File: /wwwroot/clipx/usr/include/linux/netfilter/nf_conntrack_common.h

#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 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), }; enum ip_conntrack_expect_events { IPEXP_NEW_BIT = 0, IPEXP_NEW = (1 << IPEXP_NEW_BIT), }; #ifdef __KERNEL__ struct ip_conntrack_counter { u_int32_t packets; u_int32_t bytes; }; struct ip_conntrack_stat { unsigned int searched; unsigned int found; unsigned int new; unsigned int invalid; unsigned int ignore; unsigned int delete; unsigned int delete_list; unsigned int insert; unsigned int insert_failed; unsigned int drop; unsigned int early_drop; unsigned int error; unsigned int expect_new; unsigned int expect_create; unsigned int expect_delete; }; /* call to create an explicit dependency on nf_conntrack. */ extern void need_conntrack(void); #endif /* __KERNEL__ */ #endif /* _NF_CONNTRACK_COMMON_H */