lib/libgss/g_inquire_names.c

	g_inquire_names.c revision 2
/*
 * 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"

#define MAX_MECH_OID_PAIRS 32

/* Last argument new for V2 */
OM_uint32
gss_inquire_names_for_mech(minor_status, mechanism, name_types)

OM_uint32 *     minor_status;
const gss_OID       mechanism;
gss_OID_set *       name_types;

{
    OM_uint32       status;
    gss_mechanism       mech;

    /* Initialize outputs. */

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

    if (name_types != NULL)
        *name_types = GSS_C_NO_OID_SET;

    /* Validate arguments. */

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

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

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

    mech = __gss_get_mechanism(mechanism);

    if (mech) {

        if (mech->gss_inquire_names_for_mech) {
            status = mech->gss_inquire_names_for_mech(
                    minor_status,
                    mechanism,
                    name_types);
            if (status != GSS_S_COMPLETE)
                map_error(minor_status, mech);
        } else
            status = GSS_S_UNAVAILABLE;

        return (status);
    }

    return (GSS_S_BAD_MECH);
}

static OM_uint32 val_inq_mechs4name_args(
    OM_uint32 *minor_status,
    const gss_name_t input_name,
    gss_OID_set *mech_set)
{

    /* Initialize outputs. */
    if (minor_status != NULL)
        *minor_status = 0;

    if (mech_set != NULL)
        *mech_set = GSS_C_NO_OID_SET;

    /* Validate arguments. */

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

    if (input_name == GSS_C_NO_NAME)
        return (GSS_S_BAD_NAME);

    return (GSS_S_COMPLETE);
}

OM_uint32
gss_inquire_mechs_for_name(minor_status, input_name, mech_set)

OM_uint32 *     minor_status;
const gss_name_t    input_name;
gss_OID_set *       mech_set;

{
    OM_uint32       status;
    static char     *mech_list[MAX_MECH_OID_PAIRS+1];
    gss_OID_set     mech_name_types;
    int         present;
    char            *mechanism;
    gss_OID         mechOid;
    gss_OID         name_type;
    gss_buffer_desc     name_buffer;
    int         i;

    status = val_inq_mechs4name_args(minor_status, input_name, mech_set);
    if (status != GSS_S_COMPLETE)
        return (status);

    status = gss_create_empty_oid_set(minor_status, mech_set);
    if (status != GSS_S_COMPLETE)
        return (status);
    *mech_list = NULL;
    status = __gss_get_mechanisms(mech_list, MAX_MECH_OID_PAIRS+1);
    if (status != GSS_S_COMPLETE)
        return (status);
    for (i = 0; i < MAX_MECH_OID_PAIRS && mech_list[i] != NULL; i++) {
        mechanism = mech_list[i];
        if (__gss_mech_to_oid(mechanism, &mechOid) == GSS_S_COMPLETE) {
            status = gss_inquire_names_for_mech(
                    minor_status,
                    mechOid,
                    &mech_name_types);
            if (status == GSS_S_COMPLETE) {
                status = gss_display_name(minor_status,
                            input_name,
                            &name_buffer,
                            &name_type);

                (void) gss_release_buffer(NULL, &name_buffer);

                if (status == GSS_S_COMPLETE && name_type) {
                    status = gss_test_oid_set_member(
                            minor_status,
                            name_type,
                            mech_name_types,
                            &present);
                    if (status == GSS_S_COMPLETE &&
                        present) {
                        status = gss_add_oid_set_member(
                            minor_status,
                            mechOid,
                            mech_set);
                        if (status != GSS_S_COMPLETE) {
                        (void) gss_release_oid_set(
                                minor_status,
                                &mech_name_types);
                        (void) gss_release_oid_set(
                                minor_status,
                                mech_set);
                            return (status);
                        }
                    }
                }
                (void) gss_release_oid_set(
                    minor_status,
                    &mech_name_types);
            }
        } else {
            (void) gss_release_oid_set(
                minor_status,
                mech_set);
            return (GSS_S_FAILURE);
        }
    }
    return (GSS_S_COMPLETE);
}