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jcs@openbsd.orgf361df42015-11-15 22:26:49 +00001/* $OpenBSD: sshconnect.h,v 1.29 2015/11/15 22:26:49 jcs Exp $ */
Ben Lindstrom36579d32001-01-29 07:39:26 +00002
Damien Millere4340be2000-09-16 13:29:08 +11003/*
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 */
Damien Miller9f2abc42006-07-10 20:53:08 +100026
Ben Lindstrom1bad2562002-06-06 19:57:33 +000027typedef struct Sensitive Sensitive;
28struct Sensitive {
Ben Lindstromcb72e4f2002-06-21 00:41:51 +000029 Key **keys;
30 int nkeys;
31 int external_keysign;
Ben Lindstrom1bad2562002-06-06 19:57:33 +000032};
33
Damien Miller0faf7472013-10-17 11:47:23 +110034struct addrinfo;
35int ssh_connect(const char *, struct addrinfo *, struct sockaddr_storage *,
36 u_short, int, int, int *, int, int);
Damien Millera41ccca2010-10-07 22:07:32 +110037void ssh_kill_proxy_command(void);
Ben Lindstrom226cfa02001-01-22 05:34:40 +000038
Damien Millerd925dcd2010-12-01 12:21:51 +110039void ssh_login(Sensitive *, const char *, struct sockaddr *, u_short,
40 struct passwd *, int);
Damien Millereba71ba2000-04-29 23:57:08 +100041
Darren Tucker1cc55d72009-06-21 18:17:19 +100042void ssh_exchange_identification(int);
43
Ben Lindstrom4cc240d2001-07-04 04:46:56 +000044int verify_host_key(char *, struct sockaddr *, Key *);
Damien Millereba71ba2000-04-29 23:57:08 +100045
Damien Millerd925dcd2010-12-01 12:21:51 +110046void get_hostfile_hostname_ipaddr(char *, struct sockaddr *, u_short,
47 char **, char **);
48
Ben Lindstrom4cc240d2001-07-04 04:46:56 +000049void ssh_kex(char *, struct sockaddr *);
Damien Millerd925dcd2010-12-01 12:21:51 +110050void ssh_kex2(char *, struct sockaddr *, u_short);
Ben Lindstrom5eabda32001-04-12 23:34:34 +000051
Ben Lindstrom1bad2562002-06-06 19:57:33 +000052void ssh_userauth1(const char *, const char *, char *, Sensitive *);
53void ssh_userauth2(const char *, const char *, char *, Sensitive *);
Damien Millereba71ba2000-04-29 23:57:08 +100054
Ben Lindstrom4cc240d2001-07-04 04:46:56 +000055void ssh_put_password(char *);
Damien Millerd27b9472005-12-13 19:29:02 +110056int ssh_local_cmd(const char *);
Ben Lindstromf9c48842002-06-11 16:37:51 +000057
jcs@openbsd.orgf361df42015-11-15 22:26:49 +000058void maybe_add_key_to_agent(char *, Key *, char *, char *);
59
Ben Lindstromf9c48842002-06-11 16:37:51 +000060/*
61 * Macros to raise/lower permissions.
62 */
Damien Miller6b4069a2006-06-13 13:05:15 +100063#define PRIV_START do { \
64 int save_errno = errno; \
65 if (seteuid(original_effective_uid) != 0) \
66 fatal("PRIV_START: seteuid: %s", \
67 strerror(errno)); \
68 errno = save_errno; \
Ben Lindstromf9c48842002-06-11 16:37:51 +000069} while (0)
70
Damien Miller6b4069a2006-06-13 13:05:15 +100071#define PRIV_END do { \
72 int save_errno = errno; \
73 if (seteuid(original_real_uid) != 0) \
74 fatal("PRIV_END: seteuid: %s", \
75 strerror(errno)); \
76 errno = save_errno; \
Ben Lindstromf9c48842002-06-11 16:37:51 +000077} while (0)