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 #pragma ident   "%Z%%M% %I%     %E% SMI"
  28
  29 /*
  30  *  glue routine gss_import_name
  31  *
  32  */
  33
  34 #include "mechglueP.h"
  35 #include <sys/errno.h>
  36 OM_uint32
  37 gss_import_name(
  38         OM_uint32 *minor_status,
  39         const gss_buffer_t input_name_buffer,
  40         const gss_OID input_name_type,
  41         gss_name_t *output_name)
  42
  43 {
  44         gss_union_name_t        union_name;
  45         OM_uint32               major_status = GSS_S_FAILURE;
  46
  47         if (minor_status)
  48                 *minor_status = 0;
  49
  50         /* if output_name is NULL, simply return */
  51
  52         if (output_name == NULL)
  53                 return (GSS_S_COMPLETE);
  54
  55         *output_name = 0;
  56
  57         if (input_name_buffer == GSS_C_NO_BUFFER || input_name_type == NULL)
  58                 return (GSS_S_BAD_NAME);
  59
  60         /*
  61          * First create the union name struct that will hold the external
  62          * name and the name type.
  63          */
  64
  65         union_name = (gss_union_name_t) MALLOC(sizeof (gss_union_name_desc));
  66
  67         if (!union_name) {
  68                 *minor_status = ENOMEM;
  69                 goto allocation_failure;
  70         }
  71         union_name->mech_type = 0;
  72         union_name->mech_name = 0;
  73         union_name->name_type = 0;
  74         union_name->external_name = 0;
  75
  76         /*
  77          * All we do here is record the external name and name_type.
  78          * When the name is actually used, the underlying gss_import_name()
  79          * is called for the appropriate mechanism.
  80          * Since the name type may be a constant or comming from the
  81          * rpc resoults, we must make a copy.
  82          */
  83         union_name->external_name =
  84         (gss_buffer_t) MALLOC(sizeof (gss_buffer_desc));
  85
  86         if (!union_name->external_name) {
  87                 *minor_status = ENOMEM;
  88                 goto allocation_failure;
  89         }
  90
  91         union_name->external_name->length = input_name_buffer->length;
  92         union_name->external_name->value =
  93         (void *) MALLOC(input_name_buffer->length);
  94
  95         if (!union_name->external_name->value) {
  96                 *minor_status = ENOMEM;
  97                 goto allocation_failure;
  98         }
  99
 100         (void) memcpy(union_name->external_name->value,
 101             input_name_buffer->value, input_name_buffer->length);
 102
 103         /*
 104          * making a copy of the name_type structure and elements
 105          * we now delete it when calling gss_release_name
 106          */
 107         union_name->name_type = (gss_OID) MALLOC(sizeof (gss_OID_desc));
 108
 109         if (!union_name->name_type) {
 110                 *minor_status = ENOMEM;
 111                 goto allocation_failure;
 112         }
 113
 114         union_name->name_type->elements = (void *)
 115                 MALLOC(input_name_type->length);
 116
 117         if (!union_name->name_type->elements) {
 118                 *minor_status = ENOMEM;
 119                 goto allocation_failure;
 120         }
 121
 122         (void) memcpy(union_name->name_type->elements,
 123                 input_name_type->elements, input_name_type->length);
 124         union_name->name_type->length = input_name_type->length;
 125
 126         *output_name = (gss_name_t) union_name;
 127
 128         return (GSS_S_COMPLETE);
 129
 130 allocation_failure:
 131         if (union_name) {
 132
 133                 if (union_name->external_name) {
 134                         if (union_name->external_name->value)
 135                                 FREE(union_name->external_name->value,
 136                                         union_name->external_name->length);
 137                         FREE(union_name->external_name,
 138                                 sizeof (gss_buffer_desc));
 139                 }
 140
 141                 if (union_name->name_type) {
 142                         FREE(union_name->name_type, sizeof (gss_OID_desc));
 143                 }
 144                 FREE(union_name, sizeof (gss_union_name_desc));
 145         }
 146         return (major_status);
 147 }