xref: /openssh-portable/audit.h (revision 9b655dc9)
1 /*
2  * Copyright (c) 2004, 2005 Darren Tucker.  All rights reserved.
3  *
4  * Redistribution and use in source and binary forms, with or without
5  * modification, are permitted provided that the following conditions
6  * are met:
7  * 1. Redistributions of source code must retain the above copyright
8  *    notice, this list of conditions and the following disclaimer.
9  * 2. Redistributions in binary form must reproduce the above copyright
10  *    notice, this list of conditions and the following disclaimer in the
11  *    documentation and/or other materials provided with the distribution.
12  *
13  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
14  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
15  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
16  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
17  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
18  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
19  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
20  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
21  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
22  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
23  */
24 
25 #ifndef _SSH_AUDIT_H
26 # define _SSH_AUDIT_H
27 
28 #include "loginrec.h"
29 
30 struct ssh;
31 
32 enum ssh_audit_event_type {
33 	SSH_LOGIN_EXCEED_MAXTRIES,
34 	SSH_LOGIN_ROOT_DENIED,
35 	SSH_AUTH_SUCCESS,
36 	SSH_AUTH_FAIL_NONE,
37 	SSH_AUTH_FAIL_PASSWD,
38 	SSH_AUTH_FAIL_KBDINT,	/* keyboard-interactive or challenge-response */
39 	SSH_AUTH_FAIL_PUBKEY,	/* ssh2 pubkey or ssh1 rsa */
40 	SSH_AUTH_FAIL_HOSTBASED,	/* ssh2 hostbased or ssh1 rhostsrsa */
41 	SSH_AUTH_FAIL_GSSAPI,
42 	SSH_INVALID_USER,
43 	SSH_NOLOGIN,		/* denied by /etc/nologin, not implemented */
44 	SSH_CONNECTION_CLOSE,	/* closed after attempting auth or session */
45 	SSH_CONNECTION_ABANDON,	/* closed without completing auth */
46 	SSH_AUDIT_UNKNOWN
47 };
48 typedef enum ssh_audit_event_type ssh_audit_event_t;
49 
50 void	audit_connection_from(const char *, int);
51 void	audit_event(struct ssh *, ssh_audit_event_t);
52 void	audit_session_open(struct logininfo *);
53 void	audit_session_close(struct logininfo *);
54 void	audit_run_command(const char *);
55 ssh_audit_event_t audit_classify_auth(const char *);
56 
57 #endif /* _SSH_AUDIT_H */
58