lib/libgss/g_inquire_context.c

/*
 * 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, 2011, Oracle and/or its affiliates. All rights reserved.
 */

/*
 *  glue routine for gss_inquire_context
 */

#include <mglueP.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(
        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(
                    &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);
}