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Annotation of src/usr.bin/ssh/auth2-kbdint.c, Revision 1.11

1.11    ! deraadt     1: /* $OpenBSD: auth2-kbdint.c,v 1.10 2019/09/06 04:53:27 djm Exp $ */
1.1       markus      2: /*
                      3:  * Copyright (c) 2000 Markus Friedl.  All rights reserved.
                      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:  */
                     25:
1.5       deraadt    26: #include <sys/types.h>
1.10      djm        27:
                     28: #include <stdlib.h>
                     29: #include <stdio.h>
1.11    ! deraadt    30: #include <stdarg.h>
1.1       markus     31:
1.5       deraadt    32: #include "xmalloc.h"
1.1       markus     33: #include "packet.h"
1.5       deraadt    34: #include "hostfile.h"
1.1       markus     35: #include "auth.h"
                     36: #include "log.h"
1.7       millert    37: #include "misc.h"
1.1       markus     38: #include "servconf.h"
1.9       markus     39: #include "ssherr.h"
1.1       markus     40:
                     41: /* import */
                     42: extern ServerOptions options;
                     43:
1.2       markus     44: static int
1.8       markus     45: userauth_kbdint(struct ssh *ssh)
1.1       markus     46: {
1.9       markus     47:        int r, authenticated = 0;
1.1       markus     48:        char *lang, *devs;
                     49:
1.9       markus     50:        if ((r = sshpkt_get_cstring(ssh, &lang, NULL)) != 0 ||
                     51:            (r = sshpkt_get_cstring(ssh, &devs, NULL)) != 0 ||
                     52:            (r = sshpkt_get_end(ssh)) != 0)
                     53:                fatal("%s: %s", __func__, ssh_err(r));
1.1       markus     54:
                     55:        debug("keyboard-interactive devs %s", devs);
                     56:
                     57:        if (options.challenge_response_authentication)
1.8       markus     58:                authenticated = auth2_challenge(ssh, devs);
1.1       markus     59:
1.6       djm        60:        free(devs);
                     61:        free(lang);
1.1       markus     62:        return authenticated;
                     63: }
1.2       markus     64:
                     65: Authmethod method_kbdint = {
                     66:        "keyboard-interactive",
                     67:        userauth_kbdint,
                     68:        &options.kbd_interactive_authentication
                     69: };