[openssh.git] / sshconnect.h

/* $OpenBSD: sshconnect.h,v 1.25 2009/05/27 06:38:16 andreas Exp $ */

/*
 * 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.
 */

typedef struct Sensitive Sensitive;
struct Sensitive {
	Key	**keys;
	int	nkeys;
	int	external_keysign;
};

int
ssh_connect(const char *, struct sockaddr_storage *, u_short, int, int,
    int *, int, int, const char *);

void
ssh_login(Sensitive *, const char *, struct sockaddr *, struct passwd *, int);

void	 ssh_exchange_identification(int);

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

void	 ssh_kex(char *, struct sockaddr *);
void	 ssh_kex2(char *, struct sockaddr *);

void	 ssh_userauth1(const char *, const char *, char *, Sensitive *);
void	 ssh_userauth2(const char *, const char *, char *, Sensitive *);

void	 ssh_put_password(char *);
int	 ssh_local_cmd(const char *);

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

#define PRIV_END do {					\
	int save_errno = errno;				\
	if (seteuid(original_real_uid) != 0)		\
		fatal("PRIV_END: seteuid: %s",		\
		    strerror(errno));			\
	errno = save_errno;				\
} while (0)
Commit	Line	Data
5d4d25cd	1	/* $OpenBSD: sshconnect.h,v 1.25 2009/05/27 06:38:16 andreas Exp $ */
23c2a7a5	2
bcbf86ec	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	*/
b1842393	26
39c00dc2	27	typedef struct Sensitive Sensitive;
39c00dc2	28	struct Sensitive {
7203d6bb	29	Key **keys;
	30	int nkeys;
	31	int external_keysign;
39c00dc2	32	};
39c00dc2	33
42f11eb2	34	int
dab89049	35	ssh_connect(const char , struct sockaddr_storage , u_short, int, int,
71300a43	36	int , int, int, const char );
42f11eb2	37
42f11eb2	38	void
71300a43	39	ssh_login(Sensitive , const char , struct sockaddr , struct passwd , int);
a306f2dd	40
5d4d25cd	41	void ssh_exchange_identification(int);
5d4d25cd	42
255cabd9	43	int verify_host_key(char , struct sockaddr , Key *);
a306f2dd	44
255cabd9	45	void ssh_kex(char , struct sockaddr );
255cabd9	46	void ssh_kex2(char , struct sockaddr );
8002af61	47
39c00dc2	48	void ssh_userauth1(const char , const char , char , Sensitive );
39c00dc2	49	void ssh_userauth2(const char , const char , char , Sensitive );
a306f2dd	50
255cabd9	51	void ssh_put_password(char *);
d20f3c9e	52	int ssh_local_cmd(const char *);
3fb156df	53
	54	/*
	55	* Macros to raise/lower permissions.
	56	*/
82aeee5d	57	#define PRIV_START do { \
	58	int save_errno = errno; \
	59	if (seteuid(original_effective_uid) != 0) \
	60	fatal("PRIV_START: seteuid: %s", \
	61	strerror(errno)); \
	62	errno = save_errno; \
3fb156df	63	} while (0)
3fb156df	64
82aeee5d	65	#define PRIV_END do { \
	66	int save_errno = errno; \
	67	if (seteuid(original_real_uid) != 0) \
	68	fatal("PRIV_END: seteuid: %s", \
	69	strerror(errno)); \
	70	errno = save_errno; \
3fb156df	71	} while (0)