// SPDX-License-Identifier: LGPL-2.1+
/*
 * Copyright (C) 2016 Red Hat, Inc.
 */

#include "nm-default.h"

#include "nm-dns-manager.h"

#include "nm-dbus-interface.h"
#include "nm-connection.h"
#include "nm-client.h"
#include "nm-object-private.h"
#include "nm-dbus-helpers.h"
#include "nm-core-internal.h"

/*****************************************************************************
 * NMDnsEntry
 *****************************************************************************/

G_DEFINE_BOXED_TYPE (NMDnsEntry, nm_dns_entry, nm_dns_entry_dup, nm_dns_entry_unref)

struct NMDnsEntry {
	guint refcount;

	char *interface;
	char **nameservers;
	char **domains;
	int priority;
	gboolean vpn;
};

/**
 * nm_dns_entry_new:
 *
 * Creates a new #NMDnsEntry object.
 *
 * Returns: (transfer full): the new #NMDnsEntry object, or %NULL on error
 **/
NMDnsEntry *
nm_dns_entry_new (const char *interface,
                  const char * const *nameservers,
                  const char * const *domains,
                  int priority,
                  gboolean vpn)
{
	NMDnsEntry *entry;
	guint i, len;

	entry = g_slice_new0 (NMDnsEntry);
	entry->refcount = 1;

	entry->interface = g_strdup (interface);

	if (nameservers) {
		len = g_strv_length ((char **) nameservers);
		entry->nameservers = g_new (char *, len + 1);
		for (i = 0; i < len + 1; i++)
			entry->nameservers[i] = g_strdup (nameservers[i]);
	}

	if (domains) {
		len = g_strv_length ((char **) domains);
		entry->domains = g_new (char *, len + 1);
		for (i = 0; i < len + 1; i++)
			entry->domains[i] = g_strdup (domains[i]);
	}

	entry->priority = priority;
	entry->vpn = vpn;

	return entry;
}

/**
 * nm_dns_entry_dup:
 * @entry: the #NMDnsEntry
 *
 * Creates a copy of @entry
 *
 * Returns: (transfer full): a copy of @entry
 **/
NMDnsEntry *
nm_dns_entry_dup (NMDnsEntry *entry)
{
	NMDnsEntry *copy;

	g_return_val_if_fail (entry != NULL, NULL);
	g_return_val_if_fail (entry->refcount > 0, NULL);

	copy = nm_dns_entry_new (entry->interface,
	                         (const char * const *) entry->nameservers,
	                         (const char * const *) entry->domains,
	                         entry->priority,
	                         entry->vpn);

	return copy;
}

/**
 * nm_dns_entry_unref:
 * @entry: the #NMDnsEntry
 *
 * Decreases the reference count of the object.  If the reference count
 * reaches zero, the object will be destroyed.
 *
 * Since: 1.6
 **/
void
nm_dns_entry_unref (NMDnsEntry *entry)
{
	g_return_if_fail (entry != NULL);
	g_return_if_fail (entry->refcount > 0);

	entry->refcount--;
	if (entry->refcount == 0) {
		g_free (entry->interface);
		g_strfreev (entry->nameservers);
		g_strfreev (entry->domains);
		g_slice_free (NMDnsEntry, entry);
	}
}

/**
 * nm_dns_entry_get_interface:
 * @entry: the #NMDnsEntry
 *
 * Gets the interface on which name servers are contacted.
 *
 * Returns: (transfer none): the interface name
 *
 * Since: 1.6
 **/
const char *
nm_dns_entry_get_interface (NMDnsEntry *entry)
{
	g_return_val_if_fail (entry, 0);
	g_return_val_if_fail (entry->refcount > 0, 0);

	return entry->interface;
}

/**
 * nm_dns_entry_get_nameservers:
 * @entry: the #NMDnsEntry
 *
 * Gets the list of name servers for this entry.
 *
 * Returns: (transfer none): the list of name servers
 *
 * Since: 1.6
 **/
const char * const *
nm_dns_entry_get_nameservers (NMDnsEntry *entry)
{
	g_return_val_if_fail (entry, 0);
	g_return_val_if_fail (entry->refcount > 0, 0);

	return (const char * const *) entry->nameservers;
}

/**
 * nm_dns_entry_get_domains:
 * @entry: the #NMDnsEntry
 *
 * Gets the list of DNS domains.
 *
 * Returns: (transfer none): the list of DNS domains
 *
 * Since: 1.6
 **/
const char * const *
nm_dns_entry_get_domains (NMDnsEntry *entry)
{
	g_return_val_if_fail (entry, 0);
	g_return_val_if_fail (entry->refcount > 0, 0);

	return (const char * const *)entry->domains;
}

/**
 * nm_dns_entry_get_vpn:
 * @entry: the #NMDnsEntry
 *
 * Gets whether the entry refers to VPN name servers.
 *
 * Returns: %TRUE if the entry refers to VPN name servers
 *
 * Since: 1.6
 **/
gboolean
nm_dns_entry_get_vpn (NMDnsEntry *entry)
{
	g_return_val_if_fail (entry, 0);
	g_return_val_if_fail (entry->refcount > 0, 0);

	return entry->vpn;
}

/**
 * nm_dns_entry_get_priority:
 * @entry: the #NMDnsEntry
 *
 * Gets the priority of the entry
 *
 * Returns: the priority of the entry
 *
 * Since: 1.6
 **/
int
nm_dns_entry_get_priority (NMDnsEntry *entry)
{
	g_return_val_if_fail (entry, 0);
	g_return_val_if_fail (entry->refcount > 0, 0);

	return entry->priority;
}