xref: /freebsd-src/crypto/heimdal/lib/gssapi/krb5/authorize_localname.c (revision 6a068746777241722b2b32c5d0bc443a2a64d80b)
1*ae771770SStanislav Sedov /*
2*ae771770SStanislav Sedov  * Copyright (c) 2011, PADL Software Pty Ltd.
3*ae771770SStanislav Sedov  * All rights reserved.
4*ae771770SStanislav Sedov  *
5*ae771770SStanislav Sedov  * Redistribution and use in source and binary forms, with or without
6*ae771770SStanislav Sedov  * modification, are permitted provided that the following conditions
7*ae771770SStanislav Sedov  * are met:
8*ae771770SStanislav Sedov  *
9*ae771770SStanislav Sedov  * 1. Redistributions of source code must retain the above copyright
10*ae771770SStanislav Sedov  *    notice, this list of conditions and the following disclaimer.
11*ae771770SStanislav Sedov  *
12*ae771770SStanislav Sedov  * 2. Redistributions in binary form must reproduce the above copyright
13*ae771770SStanislav Sedov  *    notice, this list of conditions and the following disclaimer in the
14*ae771770SStanislav Sedov  *    documentation and/or other materials provided with the distribution.
15*ae771770SStanislav Sedov  *
16*ae771770SStanislav Sedov  * 3. Neither the name of PADL Software nor the names of its contributors
17*ae771770SStanislav Sedov  *    may be used to endorse or promote products derived from this software
18*ae771770SStanislav Sedov  *    without specific prior written permission.
19*ae771770SStanislav Sedov  *
20*ae771770SStanislav Sedov  * THIS SOFTWARE IS PROVIDED BY PADL SOFTWARE AND CONTRIBUTORS ``AS IS'' AND
21*ae771770SStanislav Sedov  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22*ae771770SStanislav Sedov  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23*ae771770SStanislav Sedov  * ARE DISCLAIMED.  IN NO EVENT SHALL PADL SOFTWARE OR CONTRIBUTORS BE LIABLE
24*ae771770SStanislav Sedov  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25*ae771770SStanislav Sedov  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
26*ae771770SStanislav Sedov  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
27*ae771770SStanislav Sedov  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
28*ae771770SStanislav Sedov  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
29*ae771770SStanislav Sedov  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
30*ae771770SStanislav Sedov  * SUCH DAMAGE.
31*ae771770SStanislav Sedov  */
32*ae771770SStanislav Sedov 
33*ae771770SStanislav Sedov #include "gsskrb5_locl.h"
34*ae771770SStanislav Sedov 
35*ae771770SStanislav Sedov OM_uint32 GSSAPI_CALLCONV
_gsskrb5_authorize_localname(OM_uint32 * minor_status,const gss_name_t input_name,gss_const_buffer_t user_name,gss_const_OID user_name_type)36*ae771770SStanislav Sedov _gsskrb5_authorize_localname(OM_uint32 *minor_status,
37*ae771770SStanislav Sedov                              const gss_name_t input_name,
38*ae771770SStanislav Sedov                              gss_const_buffer_t user_name,
39*ae771770SStanislav Sedov                              gss_const_OID user_name_type)
40*ae771770SStanislav Sedov {
41*ae771770SStanislav Sedov     krb5_context context;
42*ae771770SStanislav Sedov     krb5_principal princ = (krb5_principal)input_name;
43*ae771770SStanislav Sedov     char *user;
44*ae771770SStanislav Sedov     int user_ok;
45*ae771770SStanislav Sedov 
46*ae771770SStanislav Sedov     if (!gss_oid_equal(user_name_type, GSS_C_NT_USER_NAME))
47*ae771770SStanislav Sedov         return GSS_S_BAD_NAMETYPE;
48*ae771770SStanislav Sedov 
49*ae771770SStanislav Sedov     GSSAPI_KRB5_INIT(&context);
50*ae771770SStanislav Sedov 
51*ae771770SStanislav Sedov     user = malloc(user_name->length + 1);
52*ae771770SStanislav Sedov     if (user == NULL) {
53*ae771770SStanislav Sedov         *minor_status = ENOMEM;
54*ae771770SStanislav Sedov         return GSS_S_FAILURE;
55*ae771770SStanislav Sedov     }
56*ae771770SStanislav Sedov 
57*ae771770SStanislav Sedov     memcpy(user, user_name->value, user_name->length);
58*ae771770SStanislav Sedov     user[user_name->length] = '\0';
59*ae771770SStanislav Sedov 
60*ae771770SStanislav Sedov     *minor_status = 0;
61*ae771770SStanislav Sedov     user_ok = krb5_kuserok(context, princ, user);
62*ae771770SStanislav Sedov 
63*ae771770SStanislav Sedov     free(user);
64*ae771770SStanislav Sedov 
65*ae771770SStanislav Sedov     return user_ok ? GSS_S_COMPLETE : GSS_S_UNAUTHORIZED;
66*ae771770SStanislav Sedov }
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