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Annotation of src/usr.bin/ssh/auth2-none.c, Revision 1.25

1.25    ! dtucker     1: /* $OpenBSD: auth2-none.c,v 1.24 2021/12/19 22:12:07 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:
1.8       stevesk    26: #include <sys/types.h>
1.17      djm        27: #include <stdarg.h>
                     28: #include <stdio.h>
1.1       markus     29:
1.12      deraadt    30: #include "xmalloc.h"
1.19      markus     31: #include "sshkey.h"
1.12      deraadt    32: #include "hostfile.h"
1.1       markus     33: #include "auth.h"
                     34: #include "packet.h"
                     35: #include "log.h"
1.18      millert    36: #include "misc.h"
1.1       markus     37: #include "servconf.h"
                     38: #include "ssh2.h"
1.19      markus     39: #include "ssherr.h"
1.12      deraadt    40: #ifdef GSSAPI
                     41: #include "ssh-gss.h"
                     42: #endif
1.1       markus     43: #include "monitor_wrap.h"
                     44:
                     45: /* import */
                     46: extern ServerOptions options;
                     47:
1.2       markus     48: /* "none" is allowed only one time */
                     49: static int none_enabled = 1;
                     50:
                     51: static int
1.24      djm        52: userauth_none(struct ssh *ssh, const char *method)
1.1       markus     53: {
1.19      markus     54:        int r;
                     55:
1.2       markus     56:        none_enabled = 0;
1.19      markus     57:        if ((r = sshpkt_get_end(ssh)) != 0)
1.23      djm        58:                fatal_fr(r, "parse packet");
1.16      djm        59:        if (options.permit_empty_passwd && options.password_authentication)
1.21      djm        60:                return (PRIVSEP(auth_password(ssh, "")));
1.5       markus     61:        return (0);
1.1       markus     62: }
1.2       markus     63:
                     64: Authmethod method_none = {
                     65:        "none",
1.24      djm        66:        NULL,
1.2       markus     67:        userauth_none,
                     68:        &none_enabled
                     69: };