usr/src/lib/libgss/g_process_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 gss_process_context
  27  */
  28
  29 #include <mechglueP.h>
  30 #include "gssapiP_generic.h"
  31
  32 OM_uint32
  33 gss_process_context_token(minor_status,
  34                                 context_handle,
  35                                 token_buffer)
  36
  37 OM_uint32 *                     minor_status;
  38 const gss_ctx_id_t              context_handle;
  39 gss_buffer_t                    token_buffer;
  40
  41 {
  42         OM_uint32               status;
  43         gss_union_ctx_id_t      ctx;
  44         gss_mechanism           mech;
  45
  46         if (minor_status == NULL)
  47                 return (GSS_S_CALL_INACCESSIBLE_WRITE);
  48         *minor_status = 0;
  49
  50         if (context_handle == GSS_C_NO_CONTEXT)
  51                 return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT);
  52
  53         if (token_buffer == GSS_C_NO_BUFFER)
  54                 return (GSS_S_CALL_INACCESSIBLE_READ);
  55
  56         if (GSS_EMPTY_BUFFER(token_buffer))
  57                 return (GSS_S_CALL_INACCESSIBLE_READ);
  58
  59         /*
  60          * select the approprate underlying mechanism routine and
  61          * call it.
  62          */
  63
  64         ctx = (gss_union_ctx_id_t) context_handle;
  65         mech = __gss_get_mechanism(ctx->mech_type);
  66
  67         if (mech) {
  68
  69                 if (mech->gss_process_context_token) {
  70                         status = mech->gss_process_context_token(
  71                                                         mech->context,
  72                                                         minor_status,
  73                                                         ctx->internal_ctx_id,
  74                                                         token_buffer);
  75                         if (status != GSS_S_COMPLETE)
  76                                 map_error(minor_status, mech);
  77                 } else
  78                         status = GSS_S_UNAVAILABLE;
  79
  80                 return (status);
  81         }
  82
  83         return (GSS_S_BAD_MECH);
  84 }