Branch data Line data Source code
1 : : /* $OpenBSD: auth2-none.c,v 1.16 2010/06/25 08:46:17 djm Exp $ */
2 : : /*
3 : : * Copyright (c) 2000 Markus Friedl. All rights reserved.
4 : : *
5 : : * Redistribution and use in source and binary forms, with or without
6 : : * modification, are permitted provided that the following conditions
7 : : * are met:
8 : : * 1. Redistributions of source code must retain the above copyright
9 : : * notice, this list of conditions and the following disclaimer.
10 : : * 2. Redistributions in binary form must reproduce the above copyright
11 : : * notice, this list of conditions and the following disclaimer in the
12 : : * documentation and/or other materials provided with the distribution.
13 : : *
14 : : * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
15 : : * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
16 : : * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
17 : : * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
18 : : * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
19 : : * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
20 : : * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
21 : : * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
22 : : * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
23 : : * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
24 : : */
25 : :
26 : : #include "includes.h"
27 : :
28 : : #include <sys/types.h>
29 : : #include <sys/stat.h>
30 : : #include <sys/uio.h>
31 : :
32 : : #include <fcntl.h>
33 : : #include <stdarg.h>
34 : : #include <string.h>
35 : : #include <unistd.h>
36 : :
37 : : #include "atomicio.h"
38 : : #include "xmalloc.h"
39 : : #include "key.h"
40 : : #include "hostfile.h"
41 : : #include "auth.h"
42 : : #include "packet.h"
43 : : #include "log.h"
44 : : #include "buffer.h"
45 : : #include "servconf.h"
46 : : #include "compat.h"
47 : : #include "ssh2.h"
48 : : #ifdef GSSAPI
49 : : #include "ssh-gss.h"
50 : : #endif
51 : : #include "monitor_wrap.h"
52 : :
53 : : /* import */
54 : : extern ServerOptions options;
55 : :
56 : : /* "none" is allowed only one time */
57 : : static int none_enabled = 1;
58 : :
59 : : static int
60 : 732 : userauth_none(Authctxt *authctxt)
61 : : {
62 : 732 : none_enabled = 0;
63 [ - + ]: 732 : packet_check_eom();
64 [ - + ][ # # ]: 732 : if (options.permit_empty_passwd && options.password_authentication)
65 [ # # ]: 0 : return (PRIVSEP(auth_password(authctxt, "")));
66 : : return (0);
67 : : }
68 : :
69 : : Authmethod method_none = {
70 : : "none",
71 : : userauth_none,
72 : : &none_enabled
73 : : };
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