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      1 /*	$NetBSD: dispatch.h,v 1.9 2026/04/08 18:58:40 christos Exp $	*/
      2 /* $OpenBSD: dispatch.h,v 1.16 2026/03/03 09:57:25 dtucker Exp $ */
      3 
      4 /*
      5  * Copyright (c) 2000 Markus Friedl.  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  *
     16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
     17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
     18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
     19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
     20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
     21  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
     22  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
     23  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
     24  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
     25  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
     26  */
     27 
     28 #ifndef DISPATCH_H
     29 #define DISPATCH_H
     30 
     31 #define DISPATCH_MAX	255
     32 
     33 enum {
     34 	DISPATCH_BLOCK,
     35 	DISPATCH_NONBLOCK
     36 };
     37 
     38 struct ssh;
     39 
     40 typedef int dispatch_fn(int, uint32_t, struct ssh *);
     41 
     42 int	dispatch_protocol_error(int, uint32_t, struct ssh *);
     43 int	dispatch_protocol_ignore(int, uint32_t, struct ssh *);
     44 void	ssh_dispatch_init(struct ssh *, dispatch_fn *);
     45 void	ssh_dispatch_set(struct ssh *, int, dispatch_fn *);
     46 void	ssh_dispatch_range(struct ssh *, u_int, u_int, dispatch_fn *);
     47 int	ssh_dispatch_run(struct ssh *, int, volatile sig_atomic_t *);
     48 void	ssh_dispatch_run_fatal(struct ssh *, int, volatile sig_atomic_t *);
     49 
     50 #endif
     51