Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame] | 1 | /* $OpenBSD: auth2-none.c,v 1.18 2014/07/15 15:54:14 millert Exp $ */ |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 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 | |
| 26 | #include "includes.h" |
| 27 | |
| 28 | #include <sys/types.h> |
| 29 | #include <sys/stat.h> |
| 30 | #include <sys/uio.h> |
| 31 | |
| 32 | #include <fcntl.h> |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 33 | #include <string.h> |
| 34 | #include <unistd.h> |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame] | 35 | #include <stdarg.h> |
| 36 | #include <stdio.h> |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 37 | |
| 38 | #include "atomicio.h" |
| 39 | #include "xmalloc.h" |
| 40 | #include "key.h" |
| 41 | #include "hostfile.h" |
| 42 | #include "auth.h" |
| 43 | #include "packet.h" |
| 44 | #include "log.h" |
| 45 | #include "buffer.h" |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame] | 46 | #include "misc.h" |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 47 | #include "servconf.h" |
| 48 | #include "compat.h" |
| 49 | #include "ssh2.h" |
| 50 | #ifdef GSSAPI |
| 51 | #include "ssh-gss.h" |
| 52 | #endif |
| 53 | #include "monitor_wrap.h" |
| 54 | |
| 55 | /* import */ |
| 56 | extern ServerOptions options; |
| 57 | |
| 58 | /* "none" is allowed only one time */ |
| 59 | static int none_enabled = 1; |
| 60 | |
| 61 | static int |
| 62 | userauth_none(Authctxt *authctxt) |
| 63 | { |
| 64 | none_enabled = 0; |
| 65 | packet_check_eom(); |
Adam Langley | d059297 | 2015-03-30 14:49:51 -0700 | [diff] [blame] | 66 | |
| 67 | /* no password authentication in Android. */ |
| 68 | #if !defined(ANDROID) |
Greg Hartman | bd77cf7 | 2015-02-25 13:21:06 -0800 | [diff] [blame] | 69 | if (options.permit_empty_passwd && options.password_authentication) |
| 70 | return (PRIVSEP(auth_password(authctxt, ""))); |
| 71 | #endif |
| 72 | return (0); |
| 73 | } |
| 74 | |
| 75 | Authmethod method_none = { |
| 76 | "none", |
| 77 | userauth_none, |
| 78 | &none_enabled |
| 79 | }; |