/*
 * 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) 2004, 2010, Oracle and/or its affiliates. All rights reserved.
 */

#include <fmd_module.h>
#include <fmd_subr.h>
#include <fmd_error.h>
#include <fmd_string.h>
#include <fmd_event.h>
#include <fmd_builtin.h>
#include <zone.h>

static const struct fmd_builtin _fmd_builtins[] = {
        { "fmd-self-diagnosis", self_init, self_fini, FMD_BUILTIN_ALLCTXT },
        { "sysevent-transport", sysev_init, sysev_fini,
                FMD_BUILTIN_CTXT_GLOBALZONE },
        { NULL, NULL, NULL, 0 }
};

static int
bltin_init(fmd_module_t *mp)
{
        const fmd_builtin_t *bp;

        for (bp = _fmd_builtins; bp->bltin_name != NULL; bp++) {
                if (strcmp(mp->mod_name, bp->bltin_name) == 0)
                        break;
        }

        if (bp == NULL)
                return (fmd_set_errno(EFMD_BLTIN_NAME));

        if (bp->bltin_init == NULL)
                return (fmd_set_errno(EFMD_BLTIN_INIT));

        mp->mod_data = (void *)bp;
        (void) pthread_mutex_unlock(&mp->mod_lock);

        /*
         * Call _fmd_init() in the module.  If this causes a module abort and
         * mod_info has been registered, unregister it on behalf of the module.
         */
        if (fmd_module_enter(mp, bp->bltin_init) != 0 && mp->mod_info != NULL)
                fmd_hdl_unregister((fmd_hdl_t *)mp);

        fmd_module_exit(mp);
        (void) pthread_mutex_lock(&mp->mod_lock);

        if (mp->mod_info == NULL)
                return (fmd_set_errno(EFMD_HDL_INIT));

        return (0);
}

static int
bltin_fini(fmd_module_t *mp)
{
        fmd_builtin_t *bp = mp->mod_data;

        if (mp->mod_info != NULL) {
                (void) fmd_module_enter(mp, bp->bltin_fini);

                if (mp->mod_info != NULL) {
                        fmd_module_lock(mp);
                        fmd_module_unregister(mp);
                        fmd_module_unlock(mp);
                }

                fmd_module_exit(mp);
        }

        return (0);
}

const fmd_modops_t fmd_bltin_ops = {
        bltin_init,
        bltin_fini,
        fmd_module_dispatch,
        fmd_module_transport,
};

int
fmd_builtin_loadall(fmd_modhash_t *mhp)
{
        const fmd_builtin_t *bp;
        uint32_t ctxt = 0;
        int err = 0;

        ctxt |= (getzoneid() == GLOBAL_ZONEID) ? FMD_BUILTIN_CTXT_GLOBALZONE :
            FMD_BUILTIN_CTXT_NONGLOBALZONE;

        for (bp = _fmd_builtins; bp->bltin_name != NULL; bp++) {
                if (!(ctxt & bp->bltin_ctxts))
                        continue;

                if (fmd_modhash_load(mhp, bp->bltin_name,
                    &fmd_bltin_ops) == NULL)
                        err = -1;
        }

        return (err);
}