Grid Community Toolkit  6.2.1550507116
sshconnect.h
1 /* $OpenBSD: sshconnect.h,v 1.29 2015/11/15 22:26:49 jcs Exp $ */
2 
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  */
26 
27 typedef struct Sensitive Sensitive;
28 struct Sensitive {
29  Key **keys;
30  int nkeys;
31  int external_keysign;
32 };
33 
34 struct addrinfo;
35 int ssh_connect(const char *, struct addrinfo *, struct sockaddr_storage *,
36  u_short, int, int, int *, int, int);
37 void ssh_kill_proxy_command(void);
38 
39 void ssh_login(Sensitive *, const char *, struct sockaddr *, u_short,
40  struct passwd *, int);
41 
42 void ssh_exchange_identification(int);
43 
44 int verify_host_key(char *, struct sockaddr *, Key *);
45 
46 void get_hostfile_hostname_ipaddr(char *, struct sockaddr *, u_short,
47  char **, char **);
48 
49 void ssh_kex(char *, struct sockaddr *);
50 void ssh_kex2(char *, struct sockaddr *, u_short);
51 
52 void ssh_userauth1(const char *, const char *, char *, Sensitive *);
53 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 void maybe_add_key_to_agent(char *, Key *, char *, char *);
59 
60 /*
61  * Macros to raise/lower permissions.
62  */
63 #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; \
69 } while (0)
70 
71 #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; \
77 } while (0)
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