/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
 * Copyright (C) 2014 Red Hat, Inc.
 * Author: Pavel Šimerda <psimerda@redhat.com>
 */

#include "nm-default.h"

#include "nm-dns-unbound.h"

#include "NetworkManagerUtils.h"

/*****************************************************************************/

struct _NMDnsUnbound {
    NMDnsPlugin parent;
};

struct _NMDnsUnboundClass {
    NMDnsPluginClass parent;
};

G_DEFINE_TYPE(NMDnsUnbound, nm_dns_unbound, NM_TYPE_DNS_PLUGIN)

/*****************************************************************************/

static gboolean
update(NMDnsPlugin *            plugin,
       const NMGlobalDnsConfig *global_config,
       const CList *            ip_config_lst_head,
       const char *             hostname,
       GError **                error)
{
    char *        argv[]        = {DNSSEC_TRIGGER_PATH, "--async", "--update", NULL};
    gs_free_error GError *local = NULL;
    int                   status;

    /* TODO: We currently call a script installed with the dnssec-trigger
     * package that queries all information itself. Later, the dependency
     * on that package will be optional and the only hard dependency will
     * be unbound.
     *
     * Unbound configuration should be later handled by this plugin directly,
     * without calling custom scripts. The dnssec-trigger functionality
     * may be eventually merged into NetworkManager.
     */
    if (!g_spawn_sync("/", argv, NULL, 0, NULL, NULL, NULL, NULL, &status, &local)) {
        nm_utils_error_set(error,
                           NM_UTILS_ERROR_UNKNOWN,
                           "error spawning dns-trigger: %s",
                           local->message);
        return FALSE;
    }
    if (status != 0) {
        nm_utils_error_set(error,
                           NM_UTILS_ERROR_UNKNOWN,
                           "dns-trigger exited with error code %d",
                           status);
        return FALSE;
    }
    return TRUE;
}

/*****************************************************************************/

static void
nm_dns_unbound_init(NMDnsUnbound *unbound)
{}

NMDnsPlugin *
nm_dns_unbound_new(void)
{
    return g_object_new(NM_TYPE_DNS_UNBOUND, NULL);
}

static void
nm_dns_unbound_class_init(NMDnsUnboundClass *klass)
{
    NMDnsPluginClass *plugin_class = NM_DNS_PLUGIN_CLASS(klass);

    plugin_class->plugin_name = "unbound";
    plugin_class->is_caching  = TRUE;
    plugin_class->update      = update;
}