xref: /freebsd/sys/netinet/tcp_ecn.h (revision bc7512cc58af2e8bbe5bbf5ca0059b1daa1da897)
1 /*-
2  * SPDX-License-Identifier: BSD-3-Clause
3  *
4  * Copyright (c) 1982, 1986, 1993, 1994, 1995
5  *	The Regents of the University of California.  All rights reserved.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  * 3. Neither the name of the University nor the names of its contributors
16  *    may be used to endorse or promote products derived from this software
17  *    without specific prior written permission.
18  *
19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29  * SUCH DAMAGE.
30  *
31  *	@(#)tcp_ecn.h	8.4 (Berkeley) 5/24/95
32  * $FreeBSD$
33  */
34 
35 #ifndef _NETINET_TCP_ECN_H_
36 #define _NETINET_TCP_ECN_H_
37 
38 #ifdef _KERNEL
39 
40 #include <netinet/tcp.h>
41 #include <netinet/tcp_var.h>
42 #include <netinet/tcp_syncache.h>
43 
44 void	 tcp_ecn_input_syn_sent(struct tcpcb *, uint16_t, int);
45 void	 tcp_ecn_input_parallel_syn(struct tcpcb *, uint16_t, int);
46 int	 tcp_ecn_input_segment(struct tcpcb *, uint16_t, int);
47 uint16_t tcp_ecn_output_syn_sent(struct tcpcb *);
48 int	 tcp_ecn_output_established(struct tcpcb *, uint16_t *, int, bool);
49 void	 tcp_ecn_syncache_socket(struct tcpcb *, struct syncache *);
50 int	 tcp_ecn_syncache_add(uint16_t, int);
51 uint16_t tcp_ecn_syncache_respond(uint16_t, struct syncache *);
52 
53 #endif /* _KERNEL */
54 
55 #endif /* _NETINET_TCP_ECN_H_ */
56