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      1 /*	$NetBSD: authorize_localname.c,v 1.2 2017/01/28 21:31:46 christos Exp $	*/
      2 
      3 /*
      4  * Copyright (c) 2011, PADL Software Pty Ltd.
      5  * All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  *
     11  * 1. Redistributions of source code must retain the above copyright
     12  *    notice, this list of conditions and the following disclaimer.
     13  *
     14  * 2. Redistributions in binary form must reproduce the above copyright
     15  *    notice, this list of conditions and the following disclaimer in the
     16  *    documentation and/or other materials provided with the distribution.
     17  *
     18  * 3. Neither the name of PADL Software nor the names of its contributors
     19  *    may be used to endorse or promote products derived from this software
     20  *    without specific prior written permission.
     21  *
     22  * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
     23  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     25  * ARE DISCLAIMED.  IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
     26  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     27  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     28  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     29  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     30  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     31  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     32  * SUCH DAMAGE.
     33  */
     34 
     35 #include "gsskrb5_locl.h"
     36 
     37 OM_uint32 GSSAPI_CALLCONV
     38 _gsskrb5_authorize_localname(OM_uint32 *minor_status,
     39                              gss_const_name_t input_name,
     40                              gss_const_buffer_t user_name,
     41                              gss_const_OID user_name_type)
     42 {
     43     krb5_context context;
     44     krb5_principal princ = (krb5_principal)input_name;
     45     char *user;
     46     int user_ok;
     47 
     48     if (!gss_oid_equal(user_name_type, GSS_C_NT_USER_NAME))
     49         return GSS_S_BAD_NAMETYPE;
     50 
     51     GSSAPI_KRB5_INIT(&context);
     52 
     53     user = malloc(user_name->length + 1);
     54     if (user == NULL) {
     55         *minor_status = ENOMEM;
     56         return GSS_S_FAILURE;
     57     }
     58 
     59     memcpy(user, user_name->value, user_name->length);
     60     user[user_name->length] = '\0';
     61 
     62     *minor_status = 0;
     63     user_ok = krb5_kuserok(context, princ, user);
     64 
     65     free(user);
     66 
     67     return user_ok ? GSS_S_COMPLETE : GSS_S_UNAUTHORIZED;
     68 }
     69