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      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 (the "License").
      6  * You may not use this file except in compliance with the License.
      7  *
      8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
      9  * or http://www.opensolaris.org/os/licensing.
     10  * See the License for the specific language governing permissions
     11  * and limitations under the License.
     12  *
     13  * When distributing Covered Code, include this CDDL HEADER in each
     14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
     15  * If applicable, add the following below this CDDL HEADER, with the
     16  * fields enclosed by brackets "[]" replaced with your own identifying
     17  * information: Portions Copyright [yyyy] [name of copyright owner]
     18  *
     19  * CDDL HEADER END
     20  */
     21 /*
     22  * Copyright 2009 Sun Microsystems, Inc.  All rights reserved.
     23  * Use is subject to license terms.
     24  */
     25 
     26 /*
     27  *  routine gss_duplicate_name
     28  *
     29  * This routine does not rely on mechanism implementation of this
     30  * name, but instead uses mechanism specific gss_import_name routine.
     31  */
     32 
     33 #include <mechglueP.h>
     34 #ifdef HAVE_STDLIB_H
     35 #include <stdlib.h>
     36 #endif
     37 #include <string.h>
     38 #include <errno.h>
     39 
     40 static OM_uint32
     41 val_dup_name_args(
     42 	OM_uint32 *minor_status,
     43 	const gss_name_t src_name,
     44 	gss_name_t *dest_name)
     45 {
     46 
     47 	/* Initialize outputs. */
     48 
     49 	if (minor_status != NULL)
     50 		*minor_status = 0;
     51 
     52 	if (dest_name != NULL)
     53 		*dest_name = GSS_C_NO_NAME;
     54 
     55 	/* Validate arguments. */
     56 
     57 	if (minor_status == NULL)
     58 		return (GSS_S_CALL_INACCESSIBLE_WRITE);
     59 
     60 	/* if output_name is NULL, simply return */
     61 	if (dest_name == NULL)
     62 		return (GSS_S_CALL_INACCESSIBLE_WRITE);
     63 
     64 	if (src_name == GSS_C_NO_NAME)
     65 		return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_BAD_NAME);
     66 
     67 	return (GSS_S_COMPLETE);
     68 }
     69 
     70 OM_uint32
     71 gss_duplicate_name(minor_status,
     72 		src_name,
     73 		dest_name)
     74 OM_uint32 *minor_status;
     75 const gss_name_t src_name;
     76 gss_name_t *dest_name;
     77 {
     78 		gss_union_name_t src_union, dest_union;
     79 		OM_uint32 major_status = GSS_S_FAILURE;
     80 
     81 	major_status = val_dup_name_args(minor_status, src_name, dest_name);
     82 	if (major_status != GSS_S_COMPLETE)
     83 		return (major_status);
     84 
     85 	major_status = GSS_S_FAILURE;
     86 
     87 	src_union = (gss_union_name_t)src_name;
     88 
     89 	/*
     90 	 * First create the union name struct that will hold the external
     91 	 * name and the name type.
     92 	 */
     93 	dest_union = (gss_union_name_t)malloc(sizeof (gss_union_name_desc));
     94 	if (!dest_union)
     95 		goto allocation_failure;
     96 
     97 	dest_union->mech_type = 0;
     98 	dest_union->mech_name = 0;
     99 	dest_union->name_type = 0;
    100 	dest_union->external_name = 0;
    101 
    102 	/* Now copy the external representaion */
    103 	if (gssint_create_copy_buffer(src_union->external_name,
    104 				&dest_union->external_name, 0))
    105 		goto allocation_failure;
    106 
    107 	if (src_union->name_type != GSS_C_NULL_OID) {
    108 		major_status = generic_gss_copy_oid(minor_status,
    109 						src_union->name_type,
    110 						&dest_union->name_type);
    111 		if (major_status != GSS_S_COMPLETE)
    112 			goto allocation_failure;
    113 	}
    114 
    115 	/*
    116 	 * See if source name is mechanim specific, if so then need to import it
    117 	 */
    118 	if (src_union->mech_type) {
    119 		major_status = generic_gss_copy_oid(minor_status,
    120 							src_union->mech_type,
    121 							&dest_union->mech_type);
    122 		if (major_status != GSS_S_COMPLETE)
    123 			goto allocation_failure;
    124 
    125 		major_status = __gss_import_internal_name(minor_status,
    126 							dest_union->mech_type,
    127 							dest_union,
    128 							&dest_union->mech_name);
    129 		if (major_status != GSS_S_COMPLETE)
    130 			goto allocation_failure;
    131 	}
    132 
    133 
    134 	*dest_name = (gss_name_t)dest_union;
    135 	return (GSS_S_COMPLETE);
    136 
    137 allocation_failure:
    138 	if (dest_union) {
    139 		if (dest_union->external_name) {
    140 			if (dest_union->external_name->value)
    141 				free(dest_union->external_name->value);
    142 				free(dest_union->external_name);
    143 		}
    144 		if (dest_union->name_type)
    145 			(void) generic_gss_release_oid(minor_status,
    146 							&dest_union->name_type);
    147 		if (dest_union->mech_name)
    148 			(void) __gss_release_internal_name(minor_status,
    149 						dest_union->mech_type,
    150 						&dest_union->mech_name);
    151 		if (dest_union->mech_type)
    152 			(void) generic_gss_release_oid(minor_status,
    153 							&dest_union->mech_type);
    154 		free(dest_union);
    155 	}
    156 	return (major_status);
    157 } /*	gss_duplicate_name	*/
    158