crypto/external/bsd/openssh/dist/sshconnect.h

   1 /*      $NetBSD: sshconnect.h,v 1.1.1.2 2009/12/27 01:07:13 christos Exp $      */
   2 /* $OpenBSD: sshconnect.h,v 1.25 2009/05/27 06:38:16 andreas 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 typedef struct Sensitive Sensitive;
  29 struct Sensitive {
  30         Key     **keys;
  31         int     nkeys;
  32         int     external_keysign;
  33 };
  34
  35 int
  36 ssh_connect(const char *, struct sockaddr_storage *, u_short, int, int,
  37     int *, int, int, const char *);
  38
  39 void
  40 ssh_login(Sensitive *, const char *, struct sockaddr *, struct passwd *, int);
  41
  42 void     ssh_exchange_identification(int);
  43
  44 int      verify_host_key(char *, struct sockaddr *, Key *);
  45
  46 void     ssh_kex(char *, struct sockaddr *);
  47 void     ssh_kex2(char *, struct sockaddr *);
  48
  49 void     ssh_userauth1(const char *, const char *, char *, Sensitive *);
  50 void     ssh_userauth2(const char *, const char *, char *, Sensitive *);
  51
  52 void     ssh_put_password(char *);
  53 int      ssh_local_cmd(const char *);
  54
  55 /*
  56  * Macros to raise/lower permissions.
  57  */
  58 #define PRIV_START do {                                 \
  59         int save_errno = errno;                         \
  60         if (seteuid(original_effective_uid) != 0)       \
  61                 fatal("PRIV_START: seteuid: %s",        \
  62                     strerror(errno));                   \
  63         errno = save_errno;                             \
  64 } while (0)
  65
  66 #define PRIV_END do {                                   \
  67         int save_errno = errno;                         \
  68         if (seteuid(original_real_uid) != 0)            \
  69                 fatal("PRIV_END: seteuid: %s",          \
  70                     strerror(errno));                   \
  71         errno = save_errno;                             \
  72 } while (0)