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3c0ef626 | 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" | |
e54b3d7c | 25 | RCSID("$OpenBSD: auth-bsdauth.c,v 1.5 2002/06/30 21:59:45 deraadt Exp $"); |
3c0ef626 | 26 | |
27 | #ifdef BSD_AUTH | |
28 | #include "xmalloc.h" | |
29 | #include "auth.h" | |
30 | #include "log.h" | |
2980ea68 | 31 | #include "monitor_wrap.h" |
3c0ef626 | 32 | |
33 | static void * | |
34 | bsdauth_init_ctx(Authctxt *authctxt) | |
35 | { | |
36 | return authctxt; | |
37 | } | |
38 | ||
2980ea68 | 39 | int |
e9a17296 | 40 | bsdauth_query(void *ctx, char **name, char **infotxt, |
3c0ef626 | 41 | u_int *numprompts, char ***prompts, u_int **echo_on) |
42 | { | |
e9a17296 | 43 | Authctxt *authctxt = ctx; |
44 | char *challenge = NULL; | |
45 | ||
46 | if (authctxt->as != NULL) { | |
47 | debug2("bsdauth_query: try reuse session"); | |
48 | challenge = auth_getitem(authctxt->as, AUTHV_CHALLENGE); | |
49 | if (challenge == NULL) { | |
50 | auth_close(authctxt->as); | |
51 | authctxt->as = NULL; | |
52 | } | |
53 | } | |
54 | ||
55 | if (challenge == NULL) { | |
56 | debug2("bsdauth_query: new bsd auth session"); | |
57 | debug3("bsdauth_query: style %s", | |
3c0ef626 | 58 | authctxt->style ? authctxt->style : "<default>"); |
e9a17296 | 59 | authctxt->as = auth_userchallenge(authctxt->user, |
ff2d7a98 | 60 | authctxt->style, "auth-ssh", &challenge); |
e9a17296 | 61 | if (authctxt->as == NULL) |
62 | challenge = NULL; | |
63 | debug2("bsdauth_query: <%s>", challenge ? challenge : "empty"); | |
64 | } | |
65 | ||
66 | if (challenge == NULL) | |
67 | return -1; | |
68 | ||
ff2d7a98 | 69 | *name = xstrdup(""); |
70 | *infotxt = xstrdup(""); | |
e9a17296 | 71 | *numprompts = 1; |
e54b3d7c | 72 | *prompts = xmalloc(*numprompts * sizeof(char *)); |
e9a17296 | 73 | *echo_on = xmalloc(*numprompts * sizeof(u_int)); |
74 | (*echo_on)[0] = 0; | |
75 | (*prompts)[0] = xstrdup(challenge); | |
76 | ||
77 | return 0; | |
3c0ef626 | 78 | } |
79 | ||
2980ea68 | 80 | int |
3c0ef626 | 81 | bsdauth_respond(void *ctx, u_int numresponses, char **responses) |
82 | { | |
e9a17296 | 83 | Authctxt *authctxt = ctx; |
84 | int authok; | |
85 | ||
86 | if (authctxt->as == 0) | |
87 | error("bsdauth_respond: no bsd auth session"); | |
3c0ef626 | 88 | |
e9a17296 | 89 | if (numresponses != 1) |
90 | return -1; | |
3c0ef626 | 91 | |
e9a17296 | 92 | authok = auth_userresponse(authctxt->as, responses[0], 0); |
93 | authctxt->as = NULL; | |
94 | debug3("bsdauth_respond: <%s> = <%d>", responses[0], authok); | |
3c0ef626 | 95 | |
e9a17296 | 96 | return (authok == 0) ? -1 : 0; |
3c0ef626 | 97 | } |
98 | ||
99 | static void | |
100 | bsdauth_free_ctx(void *ctx) | |
101 | { | |
e9a17296 | 102 | Authctxt *authctxt = ctx; |
3c0ef626 | 103 | |
e9a17296 | 104 | if (authctxt && authctxt->as) { |
105 | auth_close(authctxt->as); | |
106 | authctxt->as = NULL; | |
107 | } | |
3c0ef626 | 108 | } |
109 | ||
110 | KbdintDevice bsdauth_device = { | |
111 | "bsdauth", | |
112 | bsdauth_init_ctx, | |
113 | bsdauth_query, | |
114 | bsdauth_respond, | |
115 | bsdauth_free_ctx | |
116 | }; | |
2980ea68 | 117 | |
118 | KbdintDevice mm_bsdauth_device = { | |
119 | "bsdauth", | |
120 | bsdauth_init_ctx, | |
121 | mm_bsdauth_query, | |
122 | mm_bsdauth_respond, | |
123 | bsdauth_free_ctx | |
124 | }; | |
3c0ef626 | 125 | #endif |