dispatch.h revision 295367 
1/* $OpenBSD: dispatch.h,v 1.12 2015/01/19 20:07:45 markus Exp $ */
2
3/*
4 * Copyright (c) 2000 Markus Friedl.  All rights reserved.
5 *
6 * Redistribution and use in source and binary forms, with or without
7 * modification, are permitted provided that the following conditions
8 * are met:
9 * 1. Redistributions of source code must retain the above copyright
10 *    notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above copyright
12 *    notice, this list of conditions and the following disclaimer in the
13 *    documentation and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#ifndef DISPATCH_H
28#define DISPATCH_H
29
30#define DISPATCH_MAX	255
31
32enum {
33	DISPATCH_BLOCK,
34	DISPATCH_NONBLOCK
35};
36
37struct ssh;
38
39typedef int dispatch_fn(int, u_int32_t, void *);
40
41int	dispatch_protocol_error(int, u_int32_t, void *);
42int	dispatch_protocol_ignore(int, u_int32_t, void *);
43void	ssh_dispatch_init(struct ssh *, dispatch_fn *);
44void	ssh_dispatch_set(struct ssh *, int, dispatch_fn *);
45void	ssh_dispatch_range(struct ssh *, u_int, u_int, dispatch_fn *);
46int	ssh_dispatch_run(struct ssh *, int, volatile sig_atomic_t *, void *);
47void	ssh_dispatch_run_fatal(struct ssh *, int, volatile sig_atomic_t *, void *);
48
49#define dispatch_init(dflt) \
50	ssh_dispatch_init(active_state, (dflt))
51#define dispatch_range(from, to, fn) \
52	ssh_dispatch_range(active_state, (from), (to), (fn))
53#define dispatch_set(type, fn) \
54	ssh_dispatch_set(active_state, (type), (fn))
55#define dispatch_run(mode, done, ctxt) \
56	ssh_dispatch_run_fatal(active_state, (mode), (done), (ctxt))
57
58#endif
59