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1 | /* | |
2 | * Copyright (c) 2001 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 | #include "includes.h" | |
25 | RCSID("$OpenBSD: auth-skey.c,v 1.12 2001/05/18 14:13:28 markus Exp $"); | |
26 | ||
27 | #ifdef SKEY | |
28 | ||
29 | #include <skey.h> | |
30 | ||
31 | #include "xmalloc.h" | |
32 | #include "auth.h" | |
33 | ||
34 | static void * | |
35 | skey_init_ctx(Authctxt *authctxt) | |
36 | { | |
37 | return authctxt; | |
38 | } | |
39 | ||
40 | #define PROMPT "\nS/Key Password: " | |
41 | ||
42 | static int | |
43 | skey_query(void *ctx, char **name, char **infotxt, | |
44 | u_int* numprompts, char ***prompts, u_int **echo_on) | |
45 | { | |
46 | Authctxt *authctxt = ctx; | |
47 | char challenge[1024], *p; | |
48 | int len; | |
49 | struct skey skey; | |
50 | ||
51 | if (skeychallenge(&skey, authctxt->user, challenge) == -1) | |
52 | return -1; | |
53 | ||
54 | *name = xstrdup(""); | |
55 | *infotxt = xstrdup(""); | |
56 | *numprompts = 1; | |
57 | *prompts = xmalloc(*numprompts * sizeof(char*)); | |
58 | *echo_on = xmalloc(*numprompts * sizeof(u_int)); | |
59 | (*echo_on)[0] = 0; | |
60 | ||
61 | len = strlen(challenge) + strlen(PROMPT) + 1; | |
62 | p = xmalloc(len); | |
63 | p[0] = '\0'; | |
64 | strlcat(p, challenge, len); | |
65 | strlcat(p, PROMPT, len); | |
66 | (*prompts)[0] = p; | |
67 | ||
68 | return 0; | |
69 | } | |
70 | ||
71 | static int | |
72 | skey_respond(void *ctx, u_int numresponses, char **responses) | |
73 | { | |
74 | Authctxt *authctxt = ctx; | |
75 | ||
76 | if (authctxt->valid && | |
77 | numresponses == 1 && | |
78 | skey_haskey(authctxt->pw->pw_name) == 0 && | |
79 | skey_passcheck(authctxt->pw->pw_name, responses[0]) != -1) | |
80 | return 0; | |
81 | return -1; | |
82 | } | |
83 | ||
84 | static void | |
85 | skey_free_ctx(void *ctx) | |
86 | { | |
87 | /* we don't have a special context */ | |
88 | } | |
89 | ||
90 | KbdintDevice skey_device = { | |
91 | "skey", | |
92 | skey_init_ctx, | |
93 | skey_query, | |
94 | skey_respond, | |
95 | skey_free_ctx | |
96 | }; | |
97 | #endif /* SKEY */ |