sshconnect.h revision 1.4 
1/*	$NetBSD: sshconnect.h,v 1.4 2011/07/25 03:03:11 christos Exp $	*/
2/* $OpenBSD: sshconnect.h,v 1.27 2010/11/29 23:45:51 djm 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
28typedef struct Sensitive Sensitive;
29struct Sensitive {
30	Key	**keys;
31	int	nkeys;
32	int	external_keysign;
33};
34
35int
36ssh_connect(const char *, struct sockaddr_storage *, u_short, int, int,
37    int *, int, int, const char *);
38void	 ssh_kill_proxy_command(void);
39
40void	 ssh_login(Sensitive *, const char *, struct sockaddr *, u_short,
41    struct passwd *, int);
42
43void	 ssh_exchange_identification(int);
44
45int	 verify_host_key(char *, struct sockaddr *, Key *);
46
47void	 get_hostfile_hostname_ipaddr(char *, struct sockaddr *, u_short,
48    char **, char **);
49
50void	 ssh_kex(char *, struct sockaddr *);
51void	 ssh_kex2(char *, struct sockaddr *, u_short);
52
53void	 ssh_userauth1(const char *, const char *, char *, Sensitive *);
54void	 ssh_userauth2(const char *, const char *, char *, Sensitive *);
55
56void	 ssh_put_password(char *);
57int	 ssh_local_cmd(const char *);
58
59/*
60 * Macros to raise/lower permissions.
61 */
62#define PRIV_START do {					\
63	int save_errno = errno;				\
64	if (seteuid(original_effective_uid) != 0)	\
65		fatal("PRIV_START: seteuid: %s",	\
66		    strerror(errno));			\
67	errno = save_errno;				\
68} while (0)
69
70#define PRIV_END do {					\
71	int save_errno = errno;				\
72	if (seteuid(original_real_uid) != 0)		\
73		fatal("PRIV_END: seteuid: %s",		\
74		    strerror(errno));			\
75	errno = save_errno;				\
76} while (0)
77