crypto/openssh/dispatch.h

   1 /* $OpenBSD: dispatch.h,v 1.14 2017/05/31 07:00:13 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
  32 enum {
  33         DISPATCH_BLOCK,
  34         DISPATCH_NONBLOCK
  35 };
  36
  37 struct ssh;
  38
  39 typedef int dispatch_fn(int, u_int32_t, struct ssh *);
  40
  41 int     dispatch_protocol_error(int, u_int32_t, struct ssh *);
  42 int     dispatch_protocol_ignore(int, u_int32_t, struct ssh *);
  43 void    ssh_dispatch_init(struct ssh *, dispatch_fn *);
  44 void    ssh_dispatch_set(struct ssh *, int, dispatch_fn *);
  45 void    ssh_dispatch_range(struct ssh *, u_int, u_int, dispatch_fn *);
  46 int     ssh_dispatch_run(struct ssh *, int, volatile sig_atomic_t *);
  47 void    ssh_dispatch_run_fatal(struct ssh *, int, volatile sig_atomic_t *);
  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
  56 #endif