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

#ifndef _NF_CONNTRACK_TCP_H #define _NF_CONNTRACK_TCP_H /* TCP tracking. */ /* This is exposed to userspace (ctnetlink) */ enum tcp_conntrack { TCP_CONNTRACK_NONE, TCP_CONNTRACK_SYN_SENT, TCP_CONNTRACK_SYN_RECV, TCP_CONNTRACK_ESTABLISHED, TCP_CONNTRACK_FIN_WAIT, TCP_CONNTRACK_CLOSE_WAIT, TCP_CONNTRACK_LAST_ACK, TCP_CONNTRACK_TIME_WAIT, TCP_CONNTRACK_CLOSE, TCP_CONNTRACK_LISTEN, TCP_CONNTRACK_MAX, TCP_CONNTRACK_IGNORE }; /* Window scaling is advertised by the sender */ #define IP_CT_TCP_FLAG_WINDOW_SCALE 0x01 /* SACK is permitted by the sender */ #define IP_CT_TCP_FLAG_SACK_PERM 0x02 /* This sender sent FIN first */ #define IP_CT_TCP_FLAG_CLOSE_INIT 0x03 #ifdef __KERNEL__ struct ip_ct_tcp_state { u_int32_t td_end; /* max of seq + len */ u_int32_t td_maxend; /* max of ack + max(win, 1) */ u_int32_t td_maxwin; /* max(win) */ u_int8_t td_scale; /* window scale factor */ u_int8_t loose; /* used when connection picked up from the middle */ u_int8_t flags; /* per direction options */ }; struct ip_ct_tcp { struct ip_ct_tcp_state seen[2]; /* connection parameters per direction */ u_int8_t state; /* state of the connection (enum tcp_conntrack) */ /* For detecting stale connections */ u_int8_t last_dir; /* Direction of the last packet (enum ip_conntrack_dir) */ u_int8_t retrans; /* Number of retransmitted packets */ u_int8_t last_index; /* Index of the last packet */ u_int32_t last_seq; /* Last sequence number seen in dir */ u_int32_t last_ack; /* Last sequence number seen in opposite dir */ u_int32_t last_end; /* Last seq + len */ }; #endif /* __KERNEL__ */ #endif /* _NF_CONNTRACK_TCP_H */