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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  *  glue routine gss_unseal
     28  */
     29 
     30 #include <mechglueP.h>
     31 
     32 OM_uint32
     33 gss_unseal(minor_status,
     34 		context_handle,
     35 		input_message_buffer,
     36 		output_message_buffer,
     37 		conf_state,
     38 		qop_state)
     39 
     40 OM_uint32 *		minor_status;
     41 gss_ctx_id_t		context_handle;
     42 gss_buffer_t		input_message_buffer;
     43 gss_buffer_t		output_message_buffer;
     44 int *			conf_state;
     45 int *			qop_state;
     46 
     47 {
     48 /* EXPORT DELETE START */
     49 	OM_uint32		status;
     50 	gss_union_ctx_id_t	ctx;
     51 	gss_mechanism		mech;
     52 
     53 	if (minor_status != NULL)
     54 		*minor_status = 0;
     55 
     56 	if (output_message_buffer != GSS_C_NO_BUFFER) {
     57 		output_message_buffer->length = 0;
     58 		output_message_buffer->value = NULL;
     59 	}
     60 
     61 	if (minor_status == NULL)
     62 		return (GSS_S_CALL_INACCESSIBLE_WRITE);
     63 
     64 	if (context_handle == GSS_C_NO_CONTEXT)
     65 		return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT);
     66 
     67 	if (input_message_buffer == GSS_C_NO_BUFFER ||
     68 	    GSS_EMPTY_BUFFER(input_message_buffer))
     69 		return (GSS_S_CALL_INACCESSIBLE_READ);
     70 
     71 	if (output_message_buffer == GSS_C_NO_BUFFER)
     72 		return (GSS_S_CALL_INACCESSIBLE_WRITE);
     73 
     74 	/*
     75 	 * select the approprate underlying mechanism routine and
     76 	 * call it.
     77 	 */
     78 
     79 	ctx = (gss_union_ctx_id_t) context_handle;
     80 	mech = __gss_get_mechanism(ctx->mech_type);
     81 
     82 	if (mech) {
     83 		if (mech->gss_unseal)
     84 			status = mech->gss_unseal(
     85 						mech->context,
     86 						minor_status,
     87 						ctx->internal_ctx_id,
     88 						input_message_buffer,
     89 						output_message_buffer,
     90 						conf_state,
     91 						qop_state);
     92 		else
     93 			status = GSS_S_UNAVAILABLE;
     94 
     95 		return (status);
     96 	}
     97 
     98 /* EXPORT DELETE END */
     99 
    100 	return (GSS_S_BAD_MECH);
    101 }
    102 
    103 OM_uint32
    104 gss_unwrap(minor_status,
    105 		context_handle,
    106 		input_message_buffer,
    107 		output_message_buffer,
    108 		conf_state,
    109 		qop_state)
    110 
    111 OM_uint32 *		minor_status;
    112 const gss_ctx_id_t	context_handle;
    113 const gss_buffer_t	input_message_buffer;
    114 gss_buffer_t		output_message_buffer;
    115 int *			conf_state;
    116 gss_qop_t *		qop_state;
    117 
    118 {
    119 	return (gss_unseal(minor_status, (gss_ctx_id_t)context_handle,
    120 			(gss_buffer_t)input_message_buffer,
    121 			output_message_buffer, conf_state, (int *) qop_state));
    122 }
    123