1 /* $NetBSD: auth2-kbdint.c,v 1.8 2017/10/07 19:39:19 christos Exp $ */ 2 /* $OpenBSD: auth2-kbdint.c,v 1.8 2017/05/30 14:29:59 markus Exp $ */ 3 /* 4 * Copyright (c) 2000 Markus Friedl. All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 */ 26 27 #include "includes.h" 28 __RCSID("$NetBSD: auth2-kbdint.c,v 1.8 2017/10/07 19:39:19 christos Exp $"); 29 #include <sys/types.h> 30 31 #include "xmalloc.h" 32 #include "packet.h" 33 #include "key.h" 34 #include "hostfile.h" 35 #include "auth.h" 36 #include "log.h" 37 #include "buffer.h" 38 #include "misc.h" 39 #include "servconf.h" 40 41 /* import */ 42 extern ServerOptions options; 43 44 static int 45 userauth_kbdint(struct ssh *ssh) 46 { 47 int authenticated = 0; 48 char *lang, *devs; 49 50 lang = packet_get_string(NULL); 51 devs = packet_get_string(NULL); 52 packet_check_eom(); 53 54 debug("keyboard-interactive devs %s", devs); 55 56 if (options.challenge_response_authentication) 57 authenticated = auth2_challenge(ssh, devs); 58 59 free(devs); 60 free(lang); 61 return authenticated; 62 } 63 64 Authmethod method_kbdint = { 65 "keyboard-interactive", 66 userauth_kbdint, 67 &options.kbd_interactive_authentication 68 }; 69