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802e01b8 | 1 | /* |
2 | * Copyright (c) 2003 Markus Friedl. 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 | #include "includes.h" | |
5bdfde81 | 26 | RCSID("$OpenBSD: auth2-krb5.c,v 1.2 2003/05/15 14:09:21 markus Exp $"); |
802e01b8 | 27 | |
751092f9 | 28 | #ifdef KRB5 |
29 | ||
802e01b8 | 30 | #include <krb5.h> |
31 | ||
32 | #include "ssh2.h" | |
33 | #include "xmalloc.h" | |
34 | #include "packet.h" | |
35 | #include "log.h" | |
36 | #include "auth.h" | |
37 | #include "monitor_wrap.h" | |
38 | #include "servconf.h" | |
39 | ||
40 | /* import */ | |
41 | extern ServerOptions options; | |
42 | ||
43 | static int | |
44 | userauth_kerberos(Authctxt *authctxt) | |
45 | { | |
46 | krb5_data tkt, reply; | |
5bdfde81 | 47 | u_int dlen; |
802e01b8 | 48 | char *client = NULL; |
49 | int authenticated = 0; | |
50 | ||
5bdfde81 | 51 | tkt.data = packet_get_string(&dlen); |
52 | tkt.length = dlen; | |
802e01b8 | 53 | packet_check_eom(); |
54 | ||
55 | if (PRIVSEP(auth_krb5(authctxt, &tkt, &client, &reply))) { | |
56 | authenticated = 1; | |
57 | if (reply.length) | |
58 | xfree(reply.data); | |
59 | } | |
60 | if (client) | |
61 | xfree(client); | |
62 | xfree(tkt.data); | |
63 | return (authenticated); | |
64 | } | |
65 | ||
66 | Authmethod method_kerberos = { | |
67 | "kerberos-2@ssh.com", | |
68 | userauth_kerberos, | |
69 | &options.kerberos_authentication | |
70 | }; | |
751092f9 | 71 | |
72 | #endif /* KRB5 */ |