Annotation of src/usr.bin/ssh/auth-skey.c, Revision 1.23
1.23 ! djm 1: /* $OpenBSD$ */
1.8 deraadt 2: /*
1.12 markus 3: * Copyright (c) 2001 Markus Friedl. All rights reserved.
1.8 deraadt 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: */
1.12 markus 25: #include "includes.h"
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"
1.17 provos 33: #include "monitor_wrap.h"
1.4 markus 34:
1.12 markus 35: static void *
36: skey_init_ctx(Authctxt *authctxt)
37: {
38: return authctxt;
39: }
40:
1.18 itojun 41: int
1.13 deraadt 42: skey_query(void *ctx, char **name, char **infotxt,
1.12 markus 43: u_int* numprompts, char ***prompts, u_int **echo_on)
1.10 markus 44: {
1.12 markus 45: Authctxt *authctxt = ctx;
46: char challenge[1024], *p;
47: int len;
48: struct skey skey;
49:
1.10 markus 50: if (skeychallenge(&skey, authctxt->user, challenge) == -1)
1.12 markus 51: return -1;
52:
1.19 deraadt 53: *name = xstrdup("");
54: *infotxt = xstrdup("");
1.12 markus 55: *numprompts = 1;
1.22 djm 56: *prompts = xcalloc(*numprompts, sizeof(char *));
57: *echo_on = xcalloc(*numprompts, sizeof(u_int));
1.12 markus 58:
1.22 djm 59: xasprintf(*prompts, "%s%s", challenge, SKEY_PROMPT);
1.12 markus 60:
61: return 0;
1.10 markus 62: }
1.12 markus 63:
1.18 itojun 64: int
1.12 markus 65: skey_respond(void *ctx, u_int numresponses, char **responses)
1.4 markus 66: {
1.12 markus 67: Authctxt *authctxt = ctx;
1.13 deraadt 68:
1.12 markus 69: if (authctxt->valid &&
1.13 deraadt 70: numresponses == 1 &&
1.10 markus 71: skey_haskey(authctxt->pw->pw_name) == 0 &&
1.12 markus 72: skey_passcheck(authctxt->pw->pw_name, responses[0]) != -1)
73: return 0;
74: return -1;
1.4 markus 75: }
1.12 markus 76:
77: static void
78: skey_free_ctx(void *ctx)
1.1 markus 79: {
1.12 markus 80: /* we don't have a special context */
1.1 markus 81: }
1.12 markus 82:
83: KbdintDevice skey_device = {
84: "skey",
85: skey_init_ctx,
86: skey_query,
87: skey_respond,
1.17 provos 88: skey_free_ctx
89: };
90:
91: KbdintDevice mm_skey_device = {
92: "skey",
93: skey_init_ctx,
94: mm_skey_query,
95: mm_skey_respond,
1.12 markus 96: skey_free_ctx
97: };
98: #endif /* SKEY */