usr/src/lib/libgss/g_inquire_context.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 (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 (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
  23  */
  24
  25 /*
  26  *  glue routine for gss_inquire_context
  27  */
  28
  29 #include <mechglueP.h>
  30 #include "gssapiP_generic.h"
  31 #include <stdlib.h>
  32
  33 static OM_uint32
  34 val_inq_ctx_args(
  35         OM_uint32 *minor_status,
  36         gss_ctx_id_t context_handle,
  37         gss_name_t *src_name,
  38         gss_name_t *targ_name,
  39         gss_OID *mech_type)
  40 {
  41
  42         /* Initialize outputs. */
  43
  44         if (minor_status != NULL)
  45                 *minor_status = 0;
  46
  47         if (src_name != NULL)
  48                 *src_name = GSS_C_NO_NAME;
  49
  50         if (targ_name != NULL)
  51                 *targ_name = GSS_C_NO_NAME;
  52
  53         if (mech_type != NULL)
  54                 *mech_type = GSS_C_NO_OID;
  55
  56         /* Validate arguments. */
  57
  58         if (minor_status == NULL)
  59                 return (GSS_S_CALL_INACCESSIBLE_WRITE);
  60
  61         if (context_handle == GSS_C_NO_CONTEXT)
  62                 return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT);
  63
  64         return (GSS_S_COMPLETE);
  65 }
  66
  67 /* Last argument new for V2 */
  68 OM_uint32
  69 gss_inquire_context(
  70           OM_uint32 *minor_status,
  71           gss_ctx_id_t context_handle,
  72           gss_name_t *src_name,
  73           gss_name_t *targ_name,
  74           OM_uint32 *lifetime_rec,
  75           gss_OID *mech_type,
  76           OM_uint32 *ctx_flags,
  77           int *locally_initiated,
  78           int *opened)
  79 {
  80         gss_union_ctx_id_t      ctx;
  81         gss_mechanism           mech;
  82         OM_uint32               status, temp_minor;
  83         gss_name_t localTargName = NULL, localSourceName = NULL;
  84
  85         status = val_inq_ctx_args(minor_status,
  86                                 context_handle,
  87                                 src_name,
  88                                 targ_name,
  89                                 mech_type);
  90         if (status != GSS_S_COMPLETE)
  91                 return (status);
  92
  93         /*
  94          * select the approprate underlying mechanism routine and
  95          * call it.
  96          */
  97
  98         ctx = (gss_union_ctx_id_t)context_handle;
  99         mech = __gss_get_mechanism(ctx->mech_type);
 100
 101         if (!mech || !mech->gss_inquire_context || !mech->gss_display_name ||
 102                 !mech->gss_release_name) {
 103                 return (GSS_S_UNAVAILABLE);
 104         }
 105
 106         status = mech->gss_inquire_context(
 107                                 mech->context,
 108                                 minor_status,
 109                                 ctx->internal_ctx_id,
 110                                 (src_name ? &localSourceName : NULL),
 111                                 (targ_name ? &localTargName : NULL),
 112                                 lifetime_rec,
 113                                 NULL,
 114                                 ctx_flags,
 115                                 locally_initiated,
 116                                 opened);
 117
 118         if (status != GSS_S_COMPLETE) {
 119                 map_error(minor_status, mech);
 120                 return (status);
 121         }
 122
 123         /* need to convert names */
 124         if (src_name) {
 125                 status = __gss_convert_name_to_union_name(minor_status, mech,
 126                                                 localSourceName, src_name);
 127                 if (status != GSS_S_COMPLETE) {
 128                         if (localTargName)
 129                                 mech->gss_release_name(mech->context,
 130                                                 &temp_minor, &localTargName);
 131                         return (status);
 132                 }
 133         }
 134
 135         if (targ_name) {
 136                 status = __gss_convert_name_to_union_name(minor_status, mech,
 137                                                 localTargName, targ_name);
 138
 139                 if (status != GSS_S_COMPLETE) {
 140                         if (src_name)
 141                                 (void) gss_release_name(&temp_minor, src_name);
 142
 143                         return (status);
 144                 }
 145         }
 146
 147         /* spec says mech type must point to static storage */
 148         if (mech_type)
 149                 *mech_type = &mech->mech_type;
 150         return (GSS_S_COMPLETE);
 151 }