Annotation of src/usr.bin/ssh/auth-skey.c, Revision 1.14
1.8 deraadt 1: /*
1.12 markus 2: * Copyright (c) 2001 Markus Friedl. All rights reserved.
1.8 deraadt 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: */
1.12 markus 24: #include "includes.h"
1.14 ! markus 25: RCSID("$OpenBSD: auth-skey.c,v 1.13 2001/12/19 07:18:56 deraadt Exp $");
1.12 markus 26:
27: #ifdef SKEY
1.8 deraadt 28:
1.12 markus 29: #include <skey.h>
1.1 markus 30:
1.12 markus 31: #include "xmalloc.h"
1.10 markus 32: #include "auth.h"
1.4 markus 33:
1.12 markus 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
1.13 deraadt 43: skey_query(void *ctx, char **name, char **infotxt,
1.12 markus 44: u_int* numprompts, char ***prompts, u_int **echo_on)
1.10 markus 45: {
1.12 markus 46: Authctxt *authctxt = ctx;
47: char challenge[1024], *p;
48: int len;
49: struct skey skey;
50:
1.10 markus 51: if (skeychallenge(&skey, authctxt->user, challenge) == -1)
1.12 markus 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);
1.14 ! markus 63: strlcpy(p, challenge, len);
1.12 markus 64: strlcat(p, PROMPT, len);
65: (*prompts)[0] = p;
66:
67: return 0;
1.10 markus 68: }
1.12 markus 69:
70: static int
71: skey_respond(void *ctx, u_int numresponses, char **responses)
1.4 markus 72: {
1.12 markus 73: Authctxt *authctxt = ctx;
1.13 deraadt 74:
1.12 markus 75: if (authctxt->valid &&
1.13 deraadt 76: numresponses == 1 &&
1.10 markus 77: skey_haskey(authctxt->pw->pw_name) == 0 &&
1.12 markus 78: skey_passcheck(authctxt->pw->pw_name, responses[0]) != -1)
79: return 0;
80: return -1;
1.4 markus 81: }
1.12 markus 82:
83: static void
84: skey_free_ctx(void *ctx)
1.1 markus 85: {
1.12 markus 86: /* we don't have a special context */
1.1 markus 87: }
1.12 markus 88:
89: KbdintDevice skey_device = {
90: "skey",
91: skey_init_ctx,
92: skey_query,
93: skey_respond,
94: skey_free_ctx
95: };
96: #endif /* SKEY */