xref: /freebsd/sys/netinet/tcp_syncache.h (revision 1669d8afc64812c8d2d1d147ae1fd42ff441e1b1)
1 /*-
2  * Copyright (c) 1982, 1986, 1993, 1994, 1995
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 4. Neither the name of the University nor the names of its contributors
14  *    may be used to endorse or promote products derived from this software
15  *    without specific prior written permission.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  *	@(#)tcp_var.h	8.4 (Berkeley) 5/24/95
30  * $FreeBSD$
31  */
32 
33 #ifndef _NETINET_TCP_SYNCACHE_H_
34 #define _NETINET_TCP_SYNCACHE_H_
35 #ifdef _KERNEL
36 
37 void	 syncache_init(void);
38 void	 syncache_unreach(struct in_conninfo *, struct tcphdr *);
39 int	 syncache_expand(struct in_conninfo *, struct tcpopt *,
40 	     struct tcphdr *, struct socket **, struct mbuf *);
41 void	 syncache_add(struct in_conninfo *, struct tcpopt *,
42 	     struct tcphdr *, struct inpcb *, struct socket **, struct mbuf *);
43 void	 syncache_offload_add(struct in_conninfo *, struct tcpopt *,
44              struct tcphdr *, struct inpcb *, struct socket **,
45              struct toe_usrreqs *tu, void *toepcb);
46 void	 syncache_chkrst(struct in_conninfo *, struct tcphdr *);
47 void	 syncache_badack(struct in_conninfo *);
48 int	 syncache_pcbcount(void);
49 int	 syncache_pcblist(struct sysctl_req *req, int max_pcbs, int *pcbs_exported);
50 
51 #endif /* _KERNEL */
52 #endif /* _NETINET_TCP_SYNCACHE_H_ */
53