1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2009-2010 Lawrence Stewart <lstewart@freebsd.org>
5 * All rights reserved.
6 *
7 * This software was developed by Lawrence Stewart while studying at the Centre
8 * for Advanced Internet Architectures, Swinburne University of Technology, made
9 * possible in part by a grant from the Cisco University Research Program Fund
10 * at Community Foundation Silicon Valley.
11 *
12 * Redistribution and use in source and binary forms, with or without
13 * modification, are permitted provided that the following conditions
14 * are met:
15 * 1. Redistributions of source code must retain the above copyright
16 *    notice, this list of conditions and the following disclaimer.
17 * 2. Redistributions in binary form must reproduce the above copyright
18 *    notice, this list of conditions and the following disclaimer in the
19 *    documentation and/or other materials provided with the distribution.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
22 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
25 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * $FreeBSD$
34 */
35
36/*
37 * This software was first released in 2009 by Lawrence Stewart as part of the
38 * NewTCP research project at Swinburne University of Technology's Centre for
39 * Advanced Internet Architectures, Melbourne, Australia, which was made
40 * possible in part by a grant from the Cisco University Research Program Fund
41 * at Community Foundation Silicon Valley. More details are available at:
42 *   http://caia.swin.edu.au/urp/newtcp/
43 */
44
45#ifndef _NETINET_CC_MODULE_H_
46#define _NETINET_CC_MODULE_H_
47
48/*
49 * Allows a CC algorithm to manipulate a commonly named CC variable regardless
50 * of the transport protocol and associated C struct.
51 * XXXLAS: Out of action until the work to support SCTP is done.
52 *
53#define	CCV(ccv, what)							\
54(*(									\
55	(ccv)->type == IPPROTO_TCP ?	&(ccv)->ccvc.tcp->what :	\
56					&(ccv)->ccvc.sctp->what		\
57))
58 */
59#define	CCV(ccv, what) (ccv)->ccvc.tcp->what
60
61#define	DECLARE_CC_MODULE(ccname, ccalgo) 				\
62	static moduledata_t cc_##ccname = {				\
63		.name = #ccname,					\
64		.evhand = cc_modevent,					\
65		.priv = ccalgo						\
66	};								\
67	DECLARE_MODULE(ccname, cc_##ccname,				\
68	    SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY)
69
70int	cc_modevent(module_t mod, int type, void *data);
71
72#endif /* _NETINET_CC_MODULE_H_ */
73