[linux-2.6-block.git] / include / linux / netfilter / nf_conntrack_tcp.h

#ifndef _NF_CONNTRACK_TCP_H
#define _NF_CONNTRACK_TCP_H

#include <uapi/linux/netfilter/nf_conntrack_tcp.h>


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_int32_t	td_maxack;	/* max of ack */
	u_int8_t	td_scale;	/* window scale factor */
	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 */
	u_int16_t	last_win;	/* Last window advertisement seen in dir */
	/* For SYN packets while we may be out-of-sync */
	u_int8_t	last_wscale;	/* Last window scaling factor seen */
	u_int8_t	last_flags;	/* Last flags set */
};

#endif /* _NF_CONNTRACK_TCP_H */
Commit	Line	Data
9fb9cbb1 YK	1	#ifndef _NF_CONNTRACK_TCP_H
9fb9cbb1 YK	2	#define _NF_CONNTRACK_TCP_H
9fb9cbb1	3
94d0ec58	4	#include <uapi/linux/netfilter/nf_conntrack_tcp.h>
60c195c7	5
9fb9cbb1 YK	6
	7	struct ip_ct_tcp_state {
	8	u_int32_t td_end; /* max of seq + len */
	9	u_int32_t td_maxend; /* max of ack + max(win, 1) */
	10	u_int32_t td_maxwin; /* max(win) */
bfcaa502	11	u_int32_t td_maxack; /* max of ack */
9fb9cbb1	12	u_int8_t td_scale; /* window scale factor */
9fb9cbb1 YK	13	u_int8_t flags; /* per direction options */
	14	};
	15
d94d9fee	16	struct ip_ct_tcp {
9fb9cbb1 YK	17	struct ip_ct_tcp_state seen[2]; /* connection parameters per direction */
	18	u_int8_t state; /* state of the connection (enum tcp_conntrack) */
	19	/* For detecting stale connections */
	20	u_int8_t last_dir; /* Direction of the last packet (enum ip_conntrack_dir) */
	21	u_int8_t retrans; /* Number of retransmitted packets */
	22	u_int8_t last_index; /* Index of the last packet */
	23	u_int32_t last_seq; /* Last sequence number seen in dir */
	24	u_int32_t last_ack; /* Last sequence number seen in opposite dir */
	25	u_int32_t last_end; /* Last seq + len */
c1fe3ca5	26	u_int16_t last_win; /* Last window advertisement seen in dir */
c4832c7b PNA	27	/* For SYN packets while we may be out-of-sync */
	28	u_int8_t last_wscale; /* Last window scaling factor seen */
	29	u_int8_t last_flags; /* Last flags set */
9fb9cbb1 YK	30	};
9fb9cbb1 YK	31
9fb9cbb1	32	#endif /* _NF_CONNTRACK_TCP_H */