blob: cb43dba485211e9b6eca84cf02e7ba127f8f802a [file] [log] [blame]
Darren Tucker82a3d2b2007-02-19 22:10:25 +11001/* $OpenBSD: auth-skey.c,v 1.27 2007/01/21 01:41:54 stevesk Exp $ */
Ben Lindstromd1aed9c2001-06-10 00:41:18 +00002/*
3 * Copyright (c) 2001 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 */
Damien Millerd7834352006-08-05 12:39:39 +100025
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000026#include "includes.h"
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000027
28#ifdef SKEY
29
Damien Millerd7834352006-08-05 12:39:39 +100030#include <sys/types.h>
31
Darren Tucker260cb352006-08-05 18:48:01 +100032#include <pwd.h>
33#include <stdio.h>
34
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000035#include <skey.h>
36
37#include "xmalloc.h"
Darren Tucker260cb352006-08-05 18:48:01 +100038#include "key.h"
39#include "hostfile.h"
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000040#include "auth.h"
Darren Tucker6e1a9aa2006-08-05 19:56:00 +100041#include "ssh-gss.h"
Ben Lindstrom7a2073c2002-03-22 02:30:41 +000042#include "monitor_wrap.h"
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000043
44static void *
45skey_init_ctx(Authctxt *authctxt)
46{
47 return authctxt;
48}
49
Ben Lindstrom58d4daf2002-05-15 16:14:36 +000050int
Damien Miller9f0f5c62001-12-21 14:45:46 +110051skey_query(void *ctx, char **name, char **infotxt,
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000052 u_int* numprompts, char ***prompts, u_int **echo_on)
53{
54 Authctxt *authctxt = ctx;
Darren Tuckerd6a23f22006-08-05 18:50:35 +100055 char challenge[1024];
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000056 struct skey skey;
57
Damien Miller94cf4c82005-07-17 17:04:47 +100058 if (_compat_skeychallenge(&skey, authctxt->user, challenge,
Darren Tucker06a8cfe2004-04-14 17:24:30 +100059 sizeof(challenge)) == -1)
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000060 return -1;
61
Darren Tucker82a3d2b2007-02-19 22:10:25 +110062 *name = xstrdup("");
63 *infotxt = xstrdup("");
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000064 *numprompts = 1;
Damien Miller07d86be2006-03-26 14:19:21 +110065 *prompts = xcalloc(*numprompts, sizeof(char *));
66 *echo_on = xcalloc(*numprompts, sizeof(u_int));
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000067
Damien Miller07d86be2006-03-26 14:19:21 +110068 xasprintf(*prompts, "%s%s", challenge, SKEY_PROMPT);
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000069
70 return 0;
71}
72
Ben Lindstrom58d4daf2002-05-15 16:14:36 +000073int
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000074skey_respond(void *ctx, u_int numresponses, char **responses)
75{
76 Authctxt *authctxt = ctx;
Damien Miller9f0f5c62001-12-21 14:45:46 +110077
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000078 if (authctxt->valid &&
Damien Miller9f0f5c62001-12-21 14:45:46 +110079 numresponses == 1 &&
Ben Lindstromd1aed9c2001-06-10 00:41:18 +000080 skey_haskey(authctxt->pw->pw_name) == 0 &&
81 skey_passcheck(authctxt->pw->pw_name, responses[0]) != -1)
82 return 0;
83 return -1;
84}
85
86static void
87skey_free_ctx(void *ctx)
88{
89 /* we don't have a special context */
90}
91
92KbdintDevice skey_device = {
93 "skey",
94 skey_init_ctx,
95 skey_query,
96 skey_respond,
97 skey_free_ctx
98};
Ben Lindstrom7a2073c2002-03-22 02:30:41 +000099
100KbdintDevice mm_skey_device = {
101 "skey",
102 skey_init_ctx,
103 mm_skey_query,
104 mm_skey_respond,
105 skey_free_ctx
106};
Ben Lindstromd1aed9c2001-06-10 00:41:18 +0000107#endif /* SKEY */