Annotation of src/usr.bin/ssh/auth-skey.c, Revision 1.22
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"
25:
26: #ifdef SKEY
1.8 deraadt 27:
1.12 markus 28: #include <skey.h>
1.1 markus 29:
1.12 markus 30: #include "xmalloc.h"
1.10 markus 31: #include "auth.h"
1.17 provos 32: #include "monitor_wrap.h"
1.4 markus 33:
1.12 markus 34: static void *
35: skey_init_ctx(Authctxt *authctxt)
36: {
37: return authctxt;
38: }
39:
1.18 itojun 40: int
1.13 deraadt 41: skey_query(void *ctx, char **name, char **infotxt,
1.12 markus 42: u_int* numprompts, char ***prompts, u_int **echo_on)
1.10 markus 43: {
1.12 markus 44: Authctxt *authctxt = ctx;
45: char challenge[1024], *p;
46: int len;
47: struct skey skey;
48:
1.10 markus 49: if (skeychallenge(&skey, authctxt->user, challenge) == -1)
1.12 markus 50: return -1;
51:
1.19 deraadt 52: *name = xstrdup("");
53: *infotxt = xstrdup("");
1.12 markus 54: *numprompts = 1;
1.22 ! djm 55: *prompts = xcalloc(*numprompts, sizeof(char *));
! 56: *echo_on = xcalloc(*numprompts, sizeof(u_int));
1.12 markus 57:
1.22 ! djm 58: xasprintf(*prompts, "%s%s", challenge, SKEY_PROMPT);
1.12 markus 59:
60: return 0;
1.10 markus 61: }
1.12 markus 62:
1.18 itojun 63: int
1.12 markus 64: skey_respond(void *ctx, u_int numresponses, char **responses)
1.4 markus 65: {
1.12 markus 66: Authctxt *authctxt = ctx;
1.13 deraadt 67:
1.12 markus 68: if (authctxt->valid &&
1.13 deraadt 69: numresponses == 1 &&
1.10 markus 70: skey_haskey(authctxt->pw->pw_name) == 0 &&
1.12 markus 71: skey_passcheck(authctxt->pw->pw_name, responses[0]) != -1)
72: return 0;
73: return -1;
1.4 markus 74: }
1.12 markus 75:
76: static void
77: skey_free_ctx(void *ctx)
1.1 markus 78: {
1.12 markus 79: /* we don't have a special context */
1.1 markus 80: }
1.12 markus 81:
82: KbdintDevice skey_device = {
83: "skey",
84: skey_init_ctx,
85: skey_query,
86: skey_respond,
1.17 provos 87: skey_free_ctx
88: };
89:
90: KbdintDevice mm_skey_device = {
91: "skey",
92: skey_init_ctx,
93: mm_skey_query,
94: mm_skey_respond,
1.12 markus 95: skey_free_ctx
96: };
97: #endif /* SKEY */