usr/src/uts/common/gssapi/gss_import_name.c

   1 /*
   2  * CDDL HEADER START
   3  *
   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License, Version 1.0 only
   6  * (the "License").  You may not use this file except in compliance
   7  * with the License.
   8  *
   9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
  10  * or http://www.opensolaris.org/os/licensing.
  11  * See the License for the specific language governing permissions
  12  * and limitations under the License.
  13  *
  14  * When distributing Covered Code, include this CDDL HEADER in each
  15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  16  * If applicable, add the following below this CDDL HEADER, with the
  17  * fields enclosed by brackets "[]" replaced with your own identifying
  18  * information: Portions Copyright [yyyy] [name of copyright owner]
  19  *
  20  * CDDL HEADER END
  21  */
  22 /*
  23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26
  27 /*
  28  *  glue routine gss_import_name
  29  *
  30  */
  31
  32 #include "mechglueP.h"
  33 #include <sys/errno.h>
  34 OM_uint32
  35 gss_import_name(
  36         OM_uint32 *minor_status,
  37         const gss_buffer_t input_name_buffer,
  38         const gss_OID input_name_type,
  39         gss_name_t *output_name)
  40
  41 {
  42         gss_union_name_t        union_name;
  43         OM_uint32               major_status = GSS_S_FAILURE;
  44
  45         if (minor_status)
  46                 *minor_status = 0;
  47
  48         /* if output_name is NULL, simply return */
  49
  50         if (output_name == NULL)
  51                 return (GSS_S_COMPLETE);
  52
  53         *output_name = 0;
  54
  55         if (input_name_buffer == GSS_C_NO_BUFFER || input_name_type == NULL)
  56                 return (GSS_S_BAD_NAME);
  57
  58         /*
  59          * First create the union name struct that will hold the external
  60          * name and the name type.
  61          */
  62
  63         union_name = (gss_union_name_t) MALLOC(sizeof (gss_union_name_desc));
  64
  65         if (!union_name) {
  66                 *minor_status = ENOMEM;
  67                 goto allocation_failure;
  68         }
  69         union_name->mech_type = 0;
  70         union_name->mech_name = 0;
  71         union_name->name_type = 0;
  72         union_name->external_name = 0;
  73
  74         /*
  75          * All we do here is record the external name and name_type.
  76          * When the name is actually used, the underlying gss_import_name()
  77          * is called for the appropriate mechanism.
  78          * Since the name type may be a constant or comming from the
  79          * rpc resoults, we must make a copy.
  80          */
  81         union_name->external_name =
  82         (gss_buffer_t) MALLOC(sizeof (gss_buffer_desc));
  83
  84         if (!union_name->external_name) {
  85                 *minor_status = ENOMEM;
  86                 goto allocation_failure;
  87         }
  88
  89         union_name->external_name->length = input_name_buffer->length;
  90         union_name->external_name->value =
  91         (void *) MALLOC(input_name_buffer->length);
  92
  93         if (!union_name->external_name->value) {
  94                 *minor_status = ENOMEM;
  95                 goto allocation_failure;
  96         }
  97
  98         (void) memcpy(union_name->external_name->value,
  99             input_name_buffer->value, input_name_buffer->length);
 100
 101         /*
 102          * making a copy of the name_type structure and elements
 103          * we now delete it when calling gss_release_name
 104          */
 105         union_name->name_type = (gss_OID) MALLOC(sizeof (gss_OID_desc));
 106
 107         if (!union_name->name_type) {
 108                 *minor_status = ENOMEM;
 109                 goto allocation_failure;
 110         }
 111
 112         union_name->name_type->elements = (void *)
 113                 MALLOC(input_name_type->length);
 114
 115         if (!union_name->name_type->elements) {
 116                 *minor_status = ENOMEM;
 117                 goto allocation_failure;
 118         }
 119
 120         (void) memcpy(union_name->name_type->elements,
 121                 input_name_type->elements, input_name_type->length);
 122         union_name->name_type->length = input_name_type->length;
 123
 124         *output_name = (gss_name_t) union_name;
 125
 126         return (GSS_S_COMPLETE);
 127
 128 allocation_failure:
 129         if (union_name) {
 130
 131                 if (union_name->external_name) {
 132                         if (union_name->external_name->value)
 133                                 FREE(union_name->external_name->value,
 134                                         union_name->external_name->length);
 135                         FREE(union_name->external_name,
 136                                 sizeof (gss_buffer_desc));
 137                 }
 138
 139                 if (union_name->name_type) {
 140                         FREE(union_name->name_type, sizeof (gss_OID_desc));
 141                 }
 142                 FREE(union_name, sizeof (gss_union_name_desc));
 143         }
 144         return (major_status);
 145 }