/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright (c) 1999, 2010, Oracle and/or its affiliates. All rights reserved.
 */

/*
 *  glue routine for gss_inquire_context
 */

#include <mechglueP.h>
#include "gssapiP_generic.h"
#include <stdlib.h>

static OM_uint32
val_inq_ctx_args(
        OM_uint32 *minor_status,
        gss_ctx_id_t context_handle,
        gss_name_t *src_name,
        gss_name_t *targ_name,
        gss_OID *mech_type)
{

        /* Initialize outputs. */

        if (minor_status != NULL)
                *minor_status = 0;

        if (src_name != NULL)
                *src_name = GSS_C_NO_NAME;

        if (targ_name != NULL)
                *targ_name = GSS_C_NO_NAME;

        if (mech_type != NULL)
                *mech_type = GSS_C_NO_OID;

        /* Validate arguments. */

        if (minor_status == NULL)
                return (GSS_S_CALL_INACCESSIBLE_WRITE);

        if (context_handle == GSS_C_NO_CONTEXT)
                return (GSS_S_CALL_INACCESSIBLE_READ | GSS_S_NO_CONTEXT);

        return (GSS_S_COMPLETE);
}

/* Last argument new for V2 */
OM_uint32
gss_inquire_context(
          OM_uint32 *minor_status,
          gss_ctx_id_t context_handle,
          gss_name_t *src_name,
          gss_name_t *targ_name,
          OM_uint32 *lifetime_rec,
          gss_OID *mech_type,
          OM_uint32 *ctx_flags,
          int *locally_initiated,
          int *opened)
{
        gss_union_ctx_id_t      ctx;
        gss_mechanism           mech;
        OM_uint32               status, temp_minor;
        gss_name_t localTargName = NULL, localSourceName = NULL;

        status = val_inq_ctx_args(minor_status,
                                context_handle,
                                src_name,
                                targ_name,
                                mech_type);
        if (status != GSS_S_COMPLETE)
                return (status);

        /*
         * select the approprate underlying mechanism routine and
         * call it.
         */

        ctx = (gss_union_ctx_id_t)context_handle;
        mech = __gss_get_mechanism(ctx->mech_type);

        if (!mech || !mech->gss_inquire_context || !mech->gss_display_name ||
                !mech->gss_release_name) {
                return (GSS_S_UNAVAILABLE);
        }

        status = mech->gss_inquire_context(
                                mech->context,
                                minor_status,
                                ctx->internal_ctx_id,
                                (src_name ? &localSourceName : NULL),
                                (targ_name ? &localTargName : NULL),
                                lifetime_rec,
                                NULL,
                                ctx_flags,
                                locally_initiated,
                                opened);

        if (status != GSS_S_COMPLETE) {
                map_error(minor_status, mech);
                return (status);
        }

        /* need to convert names */
        if (src_name) {
                status = __gss_convert_name_to_union_name(minor_status, mech,
                                                localSourceName, src_name);
                if (status != GSS_S_COMPLETE) {
                        if (localTargName)
                                mech->gss_release_name(mech->context,
                                                &temp_minor, &localTargName);
                        return (status);
                }
        }

        if (targ_name) {
                status = __gss_convert_name_to_union_name(minor_status, mech,
                                                localTargName, targ_name);

                if (status != GSS_S_COMPLETE) {
                        if (src_name)
                                (void) gss_release_name(&temp_minor, src_name);

                        return (status);
                }
        }

        /* spec says mech type must point to static storage */
        if (mech_type)
                *mech_type = &mech->mech_type;
        return (GSS_S_COMPLETE);
}