Return to auth-skey.c CVS log

Up to [local] / src / usr.bin / ssh

Annotation of src/usr.bin/ssh/auth-skey.c, Revision 1.25

1.25    ! dtucker     1: /* $OpenBSD: auth-skey.c,v 1.24 2006/08/03 03:34:41 deraadt Exp $ */
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:
                     26: #ifdef SKEY
1.24      deraadt    27:
                     28: #include <sys/types.h>
1.8       deraadt    29:
1.25    ! dtucker    30: #include <pwd.h>
        !            31: #include <stdio.h>
        !            32:
1.12      markus     33: #include <skey.h>
1.1       markus     34:
1.12      markus     35: #include "xmalloc.h"
1.25    ! dtucker    36: #include "key.h"
        !            37: #include "hostfile.h"
1.10      markus     38: #include "auth.h"
1.17      provos     39: #include "monitor_wrap.h"
1.4       markus     40:
1.12      markus     41: static void *
                     42: skey_init_ctx(Authctxt *authctxt)
                     43: {
                     44:        return authctxt;
                     45: }
                     46:
1.18      itojun     47: int
1.13      deraadt    48: skey_query(void *ctx, char **name, char **infotxt,
1.12      markus     49:     u_int* numprompts, char ***prompts, u_int **echo_on)
1.10      markus     50: {
1.12      markus     51:        Authctxt *authctxt = ctx;
                     52:        char challenge[1024], *p;
                     53:        int len;
                     54:        struct skey skey;
                     55:
1.10      markus     56:        if (skeychallenge(&skey, authctxt->user, challenge) == -1)
1.12      markus     57:                return -1;
                     58:
1.19      deraadt    59:        *name  = xstrdup("");
                     60:        *infotxt  = xstrdup("");
1.12      markus     61:        *numprompts = 1;
1.22      djm        62:        *prompts = xcalloc(*numprompts, sizeof(char *));
                     63:        *echo_on = xcalloc(*numprompts, sizeof(u_int));
1.12      markus     64:
1.22      djm        65:        xasprintf(*prompts, "%s%s", challenge, SKEY_PROMPT);
1.12      markus     66:
                     67:        return 0;
1.10      markus     68: }
1.12      markus     69:
1.18      itojun     70: int
1.12      markus     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,
1.17      provos     94:        skey_free_ctx
                     95: };
                     96:
                     97: KbdintDevice mm_skey_device = {
                     98:        "skey",
                     99:        skey_init_ctx,
                    100:        mm_skey_query,
                    101:        mm_skey_respond,
1.12      markus    102:        skey_free_ctx
                    103: };
                    104: #endif /* SKEY */