1215166Slstewart/*-
2215166Slstewart * Copyright (c) 2009-2010 Lawrence Stewart <lstewart@freebsd.org>
3215166Slstewart * All rights reserved.
4215166Slstewart *
5215166Slstewart * This software was developed by Lawrence Stewart while studying at the Centre
6220560Slstewart * for Advanced Internet Architectures, Swinburne University of Technology, made
7220560Slstewart * possible in part by a grant from the Cisco University Research Program Fund
8220560Slstewart * at Community Foundation Silicon Valley.
9215166Slstewart *
10215166Slstewart * Redistribution and use in source and binary forms, with or without
11215166Slstewart * modification, are permitted provided that the following conditions
12215166Slstewart * are met:
13215166Slstewart * 1. Redistributions of source code must retain the above copyright
14215166Slstewart *    notice, this list of conditions and the following disclaimer.
15215166Slstewart * 2. Redistributions in binary form must reproduce the above copyright
16215166Slstewart *    notice, this list of conditions and the following disclaimer in the
17215166Slstewart *    documentation and/or other materials provided with the distribution.
18215166Slstewart *
19215166Slstewart * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
20215166Slstewart * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21215166Slstewart * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22215166Slstewart * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
23215166Slstewart * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24215166Slstewart * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25215166Slstewart * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26215166Slstewart * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27215166Slstewart * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28215166Slstewart * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29215166Slstewart * SUCH DAMAGE.
30215166Slstewart *
31215166Slstewart * $FreeBSD$
32215166Slstewart */
33215166Slstewart
34215166Slstewart/*
35215166Slstewart * This software was first released in 2009 by Lawrence Stewart as part of the
36220560Slstewart * NewTCP research project at Swinburne University of Technology's Centre for
37220560Slstewart * Advanced Internet Architectures, Melbourne, Australia, which was made
38220560Slstewart * possible in part by a grant from the Cisco University Research Program Fund
39220560Slstewart * at Community Foundation Silicon Valley. More details are available at:
40215166Slstewart *   http://caia.swin.edu.au/urp/newtcp/
41215166Slstewart */
42215166Slstewart
43215166Slstewart#ifndef _NETINET_CC_MODULE_H_
44215166Slstewart#define _NETINET_CC_MODULE_H_
45215166Slstewart
46215166Slstewart/*
47215166Slstewart * Allows a CC algorithm to manipulate a commonly named CC variable regardless
48215166Slstewart * of the transport protocol and associated C struct.
49215166Slstewart * XXXLAS: Out of action until the work to support SCTP is done.
50215166Slstewart *
51215166Slstewart#define	CCV(ccv, what)							\
52215166Slstewart(*(									\
53215166Slstewart	(ccv)->type == IPPROTO_TCP ?	&(ccv)->ccvc.tcp->what :	\
54215166Slstewart					&(ccv)->ccvc.sctp->what		\
55215166Slstewart))
56215166Slstewart */
57215166Slstewart#define	CCV(ccv, what) (ccv)->ccvc.tcp->what
58215166Slstewart
59215166Slstewart#define	DECLARE_CC_MODULE(ccname, ccalgo) 				\
60215166Slstewart	static moduledata_t cc_##ccname = {				\
61215166Slstewart		.name = #ccname,					\
62215166Slstewart		.evhand = cc_modevent,					\
63215166Slstewart		.priv = ccalgo						\
64215166Slstewart	};								\
65215166Slstewart	DECLARE_MODULE(ccname, cc_##ccname,				\
66215166Slstewart	    SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY)
67215166Slstewart
68215166Slstewartint	cc_modevent(module_t mod, int type, void *data);
69215166Slstewart
70215166Slstewart#endif /* _NETINET_CC_MODULE_H_ */
71