sshconnect.h 2.65 KB
Newer Older
1
/* $OpenBSD: sshconnect.h,v 1.28 2013/10/16 02:31:47 djm Exp $ */
2

3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25
/*
 * Copyright (c) 2000 Markus Friedl.  All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */
26

27 28
typedef struct Sensitive Sensitive;
struct Sensitive {
29 30 31
	Key	**keys;
	int	nkeys;
	int	external_keysign;
32 33
};

34 35 36
struct addrinfo;
int	 ssh_connect(const char *, struct addrinfo *, struct sockaddr_storage *,
    u_short, int, int, int *, int, int);
37
void	 ssh_kill_proxy_command(void);
38

39 40
void	 ssh_login(Sensitive *, const char *, struct sockaddr *, u_short,
    struct passwd *, int);
41

42 43
void	 ssh_exchange_identification(int);

44
int	 verify_host_key(char *, struct sockaddr *, Key *);
45

46 47 48
void	 get_hostfile_hostname_ipaddr(char *, struct sockaddr *, u_short,
    char **, char **);

49
void	 ssh_kex(char *, struct sockaddr *);
50
void	 ssh_kex2(char *, struct sockaddr *, u_short);
51

52 53
void	 ssh_userauth1(const char *, const char *, char *, Sensitive *);
void	 ssh_userauth2(const char *, const char *, char *, Sensitive *);
54

55
void	 ssh_put_password(char *);
56
int	 ssh_local_cmd(const char *);
57 58 59 60

/*
 * Macros to raise/lower permissions.
 */
61 62 63 64 65 66
#define PRIV_START do {					\
	int save_errno = errno;				\
	if (seteuid(original_effective_uid) != 0)	\
		fatal("PRIV_START: seteuid: %s",	\
		    strerror(errno));			\
	errno = save_errno;				\
67 68
} while (0)

69 70 71 72 73 74
#define PRIV_END do {					\
	int save_errno = errno;				\
	if (seteuid(original_real_uid) != 0)		\
		fatal("PRIV_END: seteuid: %s",		\
		    strerror(errno));			\
	errno = save_errno;				\
75
} while (0)