NetworkManager/src/tests/test-general.c

/* -*- Mode: C; tab-width: 4; indent-tabs-mode: t; c-basic-offset: 4 -*- */
/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 2, or (at your option)
 * any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 *
 * Copyright (C) 2014 Red Hat, Inc.
 *
 */

#include "nm-default.h"

#include <string.h>
#include <errno.h>
#include <net/if.h>
#include <byteswap.h>

/* need math.h for isinf() and INFINITY. No need to link with -lm */
#include <math.h>

#include "NetworkManagerUtils.h"
#include "nm-core-internal.h"
#include "nm-core-utils.h"
#include "systemd/nm-sd-utils.h"

#include "dns/nm-dns-manager.h"

#include "nm-test-utils-core.h"

/* Reference implementation for nm_utils_ip6_address_clear_host_address.
 * Taken originally from set_address_masked(), src/ndisc/nm-lndp-ndisc.c
 **/
static void
ip6_address_clear_host_address_reference (struct in6_addr *dst, struct in6_addr *src, guint8 plen)
{
	guint nbytes = plen / 8;
	guint nbits = plen % 8;

	g_return_if_fail (plen <= 128);
	g_assert (src);
	g_assert (dst);

	if (plen >= 128)
		*dst = *src;
	else {
		memset (dst, 0, sizeof (*dst));
		memcpy (dst, src, nbytes);
		dst->s6_addr[nbytes] = (src->s6_addr[nbytes] & (0xFF << (8 - nbits)));
	}
}

static void
_randomize_in6_addr (struct in6_addr *addr, GRand *r)
{
	int i;

	for (i=0; i < 4; i++)
		((guint32 *)addr)[i] = g_rand_int (r);
}

static void
test_nm_utils_ip6_address_clear_host_address (void)
{
	GRand *r = g_rand_new ();
	int plen, i;

	g_rand_set_seed (r, 0);

	for (plen = 0; plen <= 128; plen++) {
		for (i =0; i<50; i++) {
			struct in6_addr addr_src, addr_ref;
			struct in6_addr addr1, addr2;

			_randomize_in6_addr (&addr_src, r);
			_randomize_in6_addr (&addr_ref, r);
			_randomize_in6_addr (&addr1, r);
			_randomize_in6_addr (&addr2, r);

			addr1 = addr_src;
			ip6_address_clear_host_address_reference (&addr_ref, &addr1, plen);

			_randomize_in6_addr (&addr1, r);
			_randomize_in6_addr (&addr2, r);
			addr1 = addr_src;
			nm_utils_ip6_address_clear_host_address (&addr2, &addr1, plen);
			g_assert_cmpint (memcmp (&addr1, &addr_src, sizeof (struct in6_addr)), ==, 0);
			g_assert_cmpint (memcmp (&addr2, &addr_ref, sizeof (struct in6_addr)), ==, 0);

			/* test for self assignment/inplace update. */
			_randomize_in6_addr (&addr1, r);
			addr1 = addr_src;
			nm_utils_ip6_address_clear_host_address (&addr1, &addr1, plen);
			g_assert_cmpint (memcmp (&addr1, &addr_ref, sizeof (struct in6_addr)), ==, 0);
		}
	}

	g_rand_free (r);
}

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

static void
_test_same_prefix (const char *a1, const char *a2, guint8 plen)
{
	struct in6_addr a = *nmtst_inet6_from_string (a1);
	struct in6_addr b = *nmtst_inet6_from_string (a2);

	g_assert (nm_utils_ip6_address_same_prefix (&a, &b, plen));
}

static void
test_nm_utils_ip6_address_same_prefix (void)
{
	guint n, i;
	const guint N = 100;
	union {
		guint8 ptr[sizeof (struct in6_addr)];
		struct in6_addr val;
	} a, b, addrmask, addrmask_bit;
	guint8 plen;

	/* test#1 */
	for (n = 0; n < N; n++) {
		gboolean is_same = n < N / 2;
		gboolean result;

		nmtst_rand_buf (NULL, a.ptr, sizeof (a));
		nmtst_rand_buf (NULL, b.ptr, sizeof (b));
again_plen:
		plen = nmtst_get_rand_int () % 129;
		if (!is_same && NM_IN_SET (plen, 0, 128))
			goto again_plen;

		if (plen < 128) {
			for (i = 0; (i + 1) * 8 <= plen; i++)
				b.ptr[i] = a.ptr[i];
			if (plen % 8) {
				guint8 mask;

				g_assert (i < sizeof (a));
				mask = ~((1 << (8 - (plen % 8))) - 1);
				b.ptr[i] = (a.ptr[i] & mask) | (b.ptr[i] & ~mask);
				if (!is_same) {
					mask = (1 << (8 - (plen % 8)));
					b.ptr[i] = (b.ptr[i] & ~mask) | ~(b.ptr[i] & mask);
				}
			} else if (!is_same) {
				g_assert (i > 0);

				b.ptr[i - 1] = (b.ptr[i - 1] & ~0x1) | ~(b.ptr[i - 1] & 0x1);
			}
		} else
			b = a;

		result = nm_utils_ip6_address_same_prefix (&a.val, &b.val, plen);
		g_assert (result == is_same);
		g_assert (NM_IN_SET (result, TRUE, FALSE));
	}

	/* test#2 */
	for (n = 0; n < N; n++) {
		nmtst_rand_buf (NULL, a.ptr, sizeof (a));
		nmtst_rand_buf (NULL, b.ptr, sizeof (b));
		plen = nmtst_get_rand_int () % 129;

		memset (addrmask.ptr, 0xFF, sizeof (addrmask));
		nm_utils_ip6_address_clear_host_address (&addrmask.val, &addrmask.val, plen);

		for (i = 0; i < sizeof (a); i++)
			b.ptr[i] = (a.ptr[i] & addrmask.ptr[i]) | (b.ptr[i] & ~addrmask.ptr[i]);

		g_assert (nm_utils_ip6_address_same_prefix (&a.val, &b.val, plen) == TRUE);
	}

	/* test#3 */
	for (n = 0; n < N; n++) {
		gboolean reached = FALSE;

		nmtst_rand_buf (NULL, a.ptr, sizeof (a));
		nmtst_rand_buf (NULL, b.ptr, sizeof (b));
		plen = nmtst_get_rand_int () % 129;

		if (!plen)
			continue;

		memset (addrmask.ptr, 0xFF, sizeof (addrmask));
		nm_utils_ip6_address_clear_host_address (&addrmask.val, &addrmask.val, plen);

		memset (addrmask_bit.ptr, 0xFF, sizeof (addrmask_bit));
		nm_utils_ip6_address_clear_host_address (&addrmask_bit.val, &addrmask_bit.val, plen - 1);

		for (i = 0; i < sizeof (a); i++)
			b.ptr[i] = (a.ptr[i] & addrmask.ptr[i]) | (b.ptr[i] & ~addrmask.ptr[i]);

		/* flip the last bit. */
		for (i = 0; i < sizeof (a); i++) {
			guint8 mask = addrmask.ptr[i] ^ addrmask_bit.ptr[i];
			if (mask) {
				g_assert (!reached);
				g_assert (nm_utils_is_power_of_two (mask));
				reached = TRUE;
				b.ptr[i] = (b.ptr[i] & ~mask) | ~(b.ptr[i] & mask);
			}
		}
		g_assert (reached);

		g_assert (nm_utils_ip6_address_same_prefix (&a.val, &b.val, plen) == FALSE);
	}

	/* test#4 */
	_test_same_prefix ("::", "::1", 10);
	_test_same_prefix ("abcd::", "abcd::1", 10);
}

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

static void
test_nm_utils_log_connection_diff (void)
{
	NMConnection *connection;
	NMConnection *connection2;

	/* if logging is disabled (the default), nm_utils_log_connection_diff() returns
	 * early without doing anything. Hence, in the normal testing, this test does nothing.
	 * It only gets interesting, when run verbosely with NMTST_DEBUG=debug ... */

	nm_log (LOGL_DEBUG, LOGD_CORE, NULL, NULL, "START TEST test_nm_utils_log_connection_diff...");

	connection = nm_simple_connection_new ();
	nm_connection_add_setting (connection, nm_setting_connection_new ());
	nm_utils_log_connection_diff (connection, NULL, LOGL_DEBUG, LOGD_CORE, "test1", ">>> ", NULL);

	nm_connection_add_setting (connection, nm_setting_wired_new ());
	nm_utils_log_connection_diff (connection, NULL, LOGL_DEBUG, LOGD_CORE, "test2", ">>> ", NULL);

	connection2 = nm_simple_connection_new_clone (connection);
	nm_utils_log_connection_diff (connection, connection2, LOGL_DEBUG, LOGD_CORE, "test3", ">>> ", NULL);

	g_object_set (nm_connection_get_setting_connection (connection),
	              NM_SETTING_CONNECTION_ID, "id",
	              NM_SETTING_CONNECTION_UUID, "uuid",
	              NULL);
	g_object_set (nm_connection_get_setting_connection (connection2),
	              NM_SETTING_CONNECTION_ID, "id2",
	              NM_SETTING_CONNECTION_MASTER, "master2",
	              NULL);
	nm_utils_log_connection_diff (connection, connection2, LOGL_DEBUG, LOGD_CORE, "test4", ">>> ", NULL);

	nm_connection_add_setting (connection, nm_setting_802_1x_new ());
	nm_utils_log_connection_diff (connection, connection2, LOGL_DEBUG, LOGD_CORE, "test5", ">>> ", NULL);

	g_object_set (nm_connection_get_setting_802_1x (connection),
	              NM_SETTING_802_1X_PASSWORD, "id2",
	              NM_SETTING_802_1X_PASSWORD_FLAGS, NM_SETTING_SECRET_FLAG_NOT_SAVED,
	              NULL);
	nm_utils_log_connection_diff (connection, NULL, LOGL_DEBUG, LOGD_CORE, "test6", ">>> ", NULL);
	nm_utils_log_connection_diff (connection, connection2, LOGL_DEBUG, LOGD_CORE, "test7", ">>> ", NULL);
	nm_utils_log_connection_diff (connection2, connection, LOGL_DEBUG, LOGD_CORE, "test8", ">>> ", NULL);

	g_clear_object (&connection);
	g_clear_object (&connection2);

	connection = nmtst_create_minimal_connection ("id-vpn-1", NULL, NM_SETTING_VPN_SETTING_NAME, NULL);
	nm_utils_log_connection_diff (connection, NULL, LOGL_DEBUG, LOGD_CORE, "test-vpn-1", ">>> ", NULL);

	g_clear_object (&connection);
}

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

static void
do_test_sysctl_ip_conf (int addr_family,
                        const char *iface,
                        const char *property)
{
	char path[NM_UTILS_SYSCTL_IP_CONF_PATH_BUFSIZE];
	const char *pp;

	pp = nm_utils_sysctl_ip_conf_path (addr_family, path, iface, property);
	g_assert (pp == path);
	g_assert (path[0] == '/');

	g_assert (nm_utils_sysctl_ip_conf_is_path (addr_family, path, iface, property));
	g_assert (nm_utils_sysctl_ip_conf_is_path (addr_family, path, NULL, property));
}

static void
test_nm_utils_sysctl_ip_conf_path (void)
{
	do_test_sysctl_ip_conf (AF_INET6, "a", "mtu");
	do_test_sysctl_ip_conf (AF_INET6, "eth0", "mtu");
	do_test_sysctl_ip_conf (AF_INET6, "e23456789012345", "mtu");
}

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

static NMConnection *
_match_connection_new (void)
{
	NMConnection *connection;
	NMSettingConnection *s_con;
	NMSettingWired *s_wired;
	NMSettingIPConfig *s_ip4, *s_ip6;
	char *uuid;

	connection = nm_simple_connection_new ();

	s_con = (NMSettingConnection *) nm_setting_connection_new ();
	nm_connection_add_setting (connection, (NMSetting *) s_con);
	uuid = nm_utils_uuid_generate ();
	g_object_set (G_OBJECT (s_con),
	              NM_SETTING_CONNECTION_ID, "blahblah",
	              NM_SETTING_CONNECTION_UUID, uuid,
	              NM_SETTING_CONNECTION_TYPE, NM_SETTING_WIRED_SETTING_NAME,
	              NM_SETTING_CONNECTION_AUTOCONNECT, FALSE,
	              NULL);
	g_free (uuid);

	s_wired = (NMSettingWired *) nm_setting_wired_new ();
	nm_connection_add_setting (connection, (NMSetting *) s_wired);

	s_ip4 = (NMSettingIPConfig *) nm_setting_ip4_config_new ();
	nm_connection_add_setting (connection, (NMSetting *) s_ip4);
	g_object_set (G_OBJECT (s_ip4),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP4_CONFIG_METHOD_AUTO,
	              NULL);

	s_ip6 = (NMSettingIPConfig *) nm_setting_ip6_config_new ();
	nm_connection_add_setting (connection, (NMSetting *) s_ip6);
	g_object_set (G_OBJECT (s_ip6),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_AUTO,
	              NULL);

	return connection;
}

static NMConnection *
_match_connection (GSList *connections,
                   NMConnection *original,
                   gboolean device_has_carrier,
                   gint64 default_v4_metric,
                   gint64 default_v6_metric)
{
	NMConnection **list;
	guint i, len;

	len = g_slist_length (connections);
	g_assert (len < 10);

	list = g_alloca ((len + 1) * sizeof (NMConnection *));
	for (i = 0; i < len; i++, connections = connections->next) {
		g_assert (connections);
		g_assert (connections->data);
		list[i] = connections->data;
	}
	list[i] = NULL;

	return nm_utils_match_connection (list, original, FALSE, device_has_carrier, default_v4_metric, default_v6_metric, NULL, NULL);
}

static void
test_connection_match_basic (void)
{
	NMConnection *orig, *copy, *matched;
	GSList *connections = NULL;
	NMSettingIPConfig *s_ip4;

	orig = _match_connection_new ();
	copy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, copy);

	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched == copy);

	/* Now change a material property like IPv4 method and ensure matching fails */
	s_ip4 = nm_connection_get_setting_ip4_config (orig);
	g_assert (s_ip4);
	g_object_set (G_OBJECT (s_ip4),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP4_CONFIG_METHOD_LINK_LOCAL,
	              NULL);
	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched == NULL);

	g_slist_free (connections);
	g_object_unref (orig);
	g_object_unref (copy);
}

static void
test_connection_match_ip6_method (void)
{
	NMConnection *orig, *copy, *matched;
	GSList *connections = NULL;
	NMSettingIPConfig *s_ip6;

	orig = _match_connection_new ();
	copy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, copy);

	/* Check that if the generated connection is IPv6 method=link-local, and the
	 * candidate is both method=auto and may-faily=true, that the candidate is
	 * matched.
	 */
	s_ip6 = nm_connection_get_setting_ip6_config (orig);
	g_assert (s_ip6);
	g_object_set (G_OBJECT (s_ip6),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_LINK_LOCAL,
	              NULL);

	s_ip6 = nm_connection_get_setting_ip6_config (copy);
	g_assert (s_ip6);
	g_object_set (G_OBJECT (s_ip6),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_AUTO,
	              NM_SETTING_IP_CONFIG_MAY_FAIL, TRUE,
	              NULL);

	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched == copy);

	g_slist_free (connections);
	g_object_unref (orig);
	g_object_unref (copy);
}

static void
test_connection_match_ip6_method_ignore (void)
{
	NMConnection *orig, *copy, *matched;
	GSList *connections = NULL;
	NMSettingIPConfig *s_ip6;

	orig = _match_connection_new ();
	copy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, copy);

	/* Check that if the generated connection is IPv6 method=link-local, and the
	 * candidate is method=ignore, that the candidate is matched.
	 */
	s_ip6 = nm_connection_get_setting_ip6_config (orig);
	g_assert (s_ip6);
	g_object_set (G_OBJECT (s_ip6),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_LINK_LOCAL,
	              NULL);

	s_ip6 = nm_connection_get_setting_ip6_config (copy);
	g_assert (s_ip6);
	g_object_set (G_OBJECT (s_ip6),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_IGNORE,
	              NULL);

	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched == copy);

	g_slist_free (connections);
	g_object_unref (orig);
	g_object_unref (copy);
}

static void
test_connection_match_ip6_method_ignore_auto (void)
{
	NMConnection *orig, *copy, *matched;
	GSList *connections = NULL;
	NMSettingIPConfig *s_ip6;

	orig = _match_connection_new ();
	copy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, copy);

	/* Check that if the generated connection is IPv6 method=auto, and the
	 * candidate is method=ignore, that the candidate is matched.
	 */
	s_ip6 = nm_connection_get_setting_ip6_config (orig);
	g_assert (s_ip6);
	g_object_set (G_OBJECT (s_ip6),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_AUTO,
	              NULL);

	s_ip6 = nm_connection_get_setting_ip6_config (copy);
	g_assert (s_ip6);
	g_object_set (G_OBJECT (s_ip6),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_IGNORE,
	              NULL);

	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched == copy);

	g_slist_free (connections);
	g_object_unref (orig);
	g_object_unref (copy);
}

static void
test_connection_match_ip4_method (void)
{
	NMConnection *orig, *copy, *matched;
	GSList *connections = NULL;
	NMSettingIPConfig *s_ip4;

	orig = _match_connection_new ();
	copy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, copy);

	/* Check that if the generated connection is IPv4 method=disabled, and the
	 * candidate is both method=auto and may-faily=true, and the device has no
	 * carrier that the candidate is matched.
	 */
	s_ip4 = nm_connection_get_setting_ip4_config (orig);
	g_assert (s_ip4);
	g_object_set (G_OBJECT (s_ip4),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP4_CONFIG_METHOD_DISABLED,
	              NULL);

	s_ip4 = nm_connection_get_setting_ip4_config (copy);
	g_assert (s_ip4);
	g_object_set (G_OBJECT (s_ip4),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP4_CONFIG_METHOD_AUTO,
	              NM_SETTING_IP_CONFIG_MAY_FAIL, TRUE,
	              NULL);

	matched = _match_connection (connections, orig, FALSE, 0, 0);
	g_assert (matched == copy);

	/* Ensure when carrier=true matching fails */
	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched == NULL);

	g_slist_free (connections);
	g_object_unref (orig);
	g_object_unref (copy);
}

static void
test_connection_match_interface_name (void)
{
	NMConnection *orig, *copy, *matched;
	GSList *connections = NULL;
	NMSettingConnection *s_con;

	orig = _match_connection_new ();
	copy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, copy);

	/* Check that if the generated connection has an interface name and the
	 * candidate's interface name is NULL, that the candidate is matched.
	 */
	s_con = nm_connection_get_setting_connection (orig);
	g_assert (s_con);
	g_object_set (G_OBJECT (s_con),
	              NM_SETTING_CONNECTION_INTERFACE_NAME, "em1",
	              NULL);

	s_con = nm_connection_get_setting_connection (copy);
	g_assert (s_con);
	g_object_set (G_OBJECT (s_con),
	              NM_SETTING_CONNECTION_INTERFACE_NAME, NULL,
	              NULL);

	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched == copy);

	g_slist_free (connections);
	g_object_unref (orig);
	g_object_unref (copy);
}

static void
test_connection_match_wired (void)
{
	NMConnection *orig, *copy, *matched;
	GSList *connections = NULL;
	NMSettingWired *s_wired;
	char *subchan_arr[] = { "0.0.8000", "0.0.8001", "0.0.8002", NULL };
	const char *mac = "52:54:00:ab:db:23";

	orig = _match_connection_new ();
	copy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, copy);

	s_wired = nm_connection_get_setting_wired (orig);
	g_assert (s_wired);
	g_object_set (G_OBJECT (s_wired),
	              NM_SETTING_WIRED_PORT, "tp",           /* port is not compared */
	              NM_SETTING_WIRED_MAC_ADDRESS, mac,     /* we allow MAC address just in one connection */
	              NM_SETTING_WIRED_S390_SUBCHANNELS, subchan_arr,
	              NM_SETTING_WIRED_S390_NETTYPE, "qeth",
	              NULL);

	s_wired = nm_connection_get_setting_wired (copy);
	g_assert (s_wired);
	g_object_set (G_OBJECT (s_wired),
	              NM_SETTING_WIRED_S390_SUBCHANNELS, subchan_arr,
	              NM_SETTING_WIRED_S390_NETTYPE, "qeth",
	              NULL);

	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched == copy);

	g_slist_free (connections);
	g_object_unref (orig);
	g_object_unref (copy);
}

static void
test_connection_match_wired2 (void)
{
	NMConnection *orig, *copy, *matched;
	GSList *connections = NULL;
	NMSettingWired *s_wired;
	const char *mac = "52:54:00:ab:db:23";

	orig = _match_connection_new ();
	s_wired = nm_connection_get_setting_wired (orig);
	g_assert (s_wired);
	g_object_set (G_OBJECT (s_wired),
	              NM_SETTING_WIRED_PORT, "tp",           /* port is not compared */
	              NM_SETTING_WIRED_MAC_ADDRESS, mac,     /* we allow MAC address just in one connection */
	              NULL);

	copy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, copy);

	/* Check that if the generated connection do not have wired setting
	 * and s390 properties in the existing connection's setting are default,
	 * the connections match. It can happen if assuming VLAN devices. */
	nm_connection_remove_setting (orig, NM_TYPE_SETTING_WIRED);

	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched == copy);

	g_slist_free (connections);
	g_object_unref (orig);
	g_object_unref (copy);
}

static void
test_connection_match_cloned_mac (void)
{
	NMConnection *orig, *exact, *fuzzy, *matched;
	GSList *connections = NULL;
	NMSettingWired *s_wired;

	orig = _match_connection_new ();

	fuzzy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, fuzzy);
	s_wired = nm_connection_get_setting_wired (orig);
	g_assert (s_wired);
	g_object_set (G_OBJECT (s_wired),
	              NM_SETTING_WIRED_CLONED_MAC_ADDRESS, "52:54:00:ab:db:23",
	              NULL);

	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched == fuzzy);

	exact = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, exact);
	s_wired = nm_connection_get_setting_wired (exact);
	g_assert (s_wired);
	g_object_set (G_OBJECT (s_wired),
	              NM_SETTING_WIRED_CLONED_MAC_ADDRESS, "52:54:00:ab:db:23",
	              NULL);

	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched == exact);

	g_object_set (G_OBJECT (s_wired),
	              NM_SETTING_WIRED_CLONED_MAC_ADDRESS, "52:54:00:ab:db:24",
	              NULL);

	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched == fuzzy);

	g_slist_free (connections);
	g_object_unref (orig);
	g_object_unref (fuzzy);
	g_object_unref (exact);
}

static void
test_connection_no_match_ip4_addr (void)
{
	NMConnection *orig, *copy, *matched;
	GSList *connections = NULL;
	NMSettingIPConfig *s_ip4, *s_ip6;
	NMIPAddress *nm_addr;
	GError *error = NULL;

	orig = _match_connection_new ();
	copy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, copy);

	/* Check that if we have two differences, ipv6.method (exception we allow) and
	 * ipv4.addresses (which is fatal), we don't match the connections.
	 */
	s_ip6 = nm_connection_get_setting_ip6_config (orig);
	g_assert (s_ip6);
	g_object_set (G_OBJECT (s_ip6),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_LINK_LOCAL,
	              NULL);

	s_ip6 = nm_connection_get_setting_ip6_config (copy);
	g_assert (s_ip6);
	g_object_set (G_OBJECT (s_ip6),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_IGNORE,
	              NULL);

	s_ip4 = nm_connection_get_setting_ip4_config (orig);
	g_assert (s_ip4);
	g_object_set (G_OBJECT (s_ip4),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP4_CONFIG_METHOD_MANUAL,
	              NM_SETTING_IP_CONFIG_GATEWAY, "1.1.1.254",
	              NULL);
	nm_addr = nm_ip_address_new (AF_INET, "1.1.1.4", 24, &error);
	g_assert_no_error (error);
	nm_setting_ip_config_add_address (s_ip4, nm_addr);
	nm_ip_address_unref (nm_addr);

	s_ip4 = nm_connection_get_setting_ip4_config (copy);
	g_assert (s_ip4);
	g_object_set (G_OBJECT (s_ip4),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP4_CONFIG_METHOD_MANUAL,
	              NM_SETTING_IP_CONFIG_GATEWAY, "2.2.2.254",
	              NULL);
	nm_addr = nm_ip_address_new (AF_INET, "2.2.2.4", 24, &error);
	g_assert_no_error (error);
	nm_setting_ip_config_add_address (s_ip4, nm_addr);
	nm_ip_address_unref (nm_addr);

	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched != copy);

	g_slist_free (connections);
	g_object_unref (orig);
	g_object_unref (copy);
}

static void
test_connection_no_match_vlan (void)
{
	NMConnection *orig, *copy, *matched;
	GSList *connections = NULL;
	NMSettingConnection *s_con;
	NMSettingVlan *s_vlan_orig, *s_vlan_copy;
	char *uuid;

	orig = nm_simple_connection_new ();
	s_con = (NMSettingConnection *) nm_setting_connection_new ();
	nm_connection_add_setting (orig, (NMSetting *) s_con);
	uuid = nm_utils_uuid_generate ();
	g_object_set (G_OBJECT (s_con),
	              NM_SETTING_CONNECTION_ID, "vlan-test",
	              NM_SETTING_CONNECTION_UUID, uuid,
	              NM_SETTING_CONNECTION_TYPE, NM_SETTING_VLAN_SETTING_NAME,
	              NM_SETTING_CONNECTION_AUTOCONNECT, FALSE,
	              NULL);
	g_free (uuid);
	nm_connection_add_setting (orig, nm_setting_vlan_new ());

	copy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, copy);

	/* Check that the connections do not match if VLAN flags differ */
	s_vlan_orig = nm_connection_get_setting_vlan (orig);
	g_assert (s_vlan_orig);
	g_object_set (G_OBJECT (s_vlan_orig),
	              NM_SETTING_VLAN_FLAGS, NM_VLAN_FLAG_REORDER_HEADERS,
	              NULL);

	s_vlan_copy = nm_connection_get_setting_vlan (copy);
	g_assert (s_vlan_copy);
	g_object_set (G_OBJECT (s_vlan_copy),
	              NM_SETTING_VLAN_FLAGS, 0,
	              NULL);

	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched != copy);

	/* Check that the connections do not match if VLAN priorities differ */
	g_object_set (G_OBJECT (s_vlan_orig), NM_SETTING_VLAN_FLAGS, 0, NULL);
	nm_setting_vlan_add_priority_str (s_vlan_orig, NM_VLAN_INGRESS_MAP, "1:3");

	g_object_set (G_OBJECT (s_vlan_copy), NM_SETTING_VLAN_FLAGS, 0, NULL);
	nm_setting_vlan_add_priority_str (s_vlan_copy, NM_VLAN_INGRESS_MAP, "4:2");

	matched = _match_connection (connections, orig, TRUE, 0, 0);
	g_assert (matched != copy);

	g_slist_free (connections);
	g_object_unref (orig);
	g_object_unref (copy);
}

static void
test_connection_match_ip4_routes1 (void)
{
	gs_unref_object NMConnection *orig = NULL, *copy = NULL;
	NMConnection *matched;
	gs_free_slist GSList *connections = NULL;
	NMSettingIPConfig *s_ip4;

	orig = _match_connection_new ();

	s_ip4 = nm_connection_get_setting_ip4_config (orig);
	g_assert (s_ip4);
	g_object_set (G_OBJECT (s_ip4),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP4_CONFIG_METHOD_MANUAL,
	              NULL);

	nmtst_setting_ip_config_add_address (s_ip4, "10.0.0.1", 8);

	/* Clone connection */
	copy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, copy);

	/* Set routes on original connection */
	nmtst_setting_ip_config_add_route (s_ip4, "172.25.16.0", 24, "10.0.0.2", -1);
	nmtst_setting_ip_config_add_route (s_ip4, "172.25.17.0", 24, "10.0.0.3", 20);

	/* Set single route on cloned connection */
	s_ip4 = nm_connection_get_setting_ip4_config (copy);
	g_assert (s_ip4);
	nmtst_setting_ip_config_add_route (s_ip4, "172.25.17.0", 24, "10.0.0.3", 20);

	/* Try to match the connections */
	matched = _match_connection (connections, orig, FALSE, 100, 0);
	g_assert (matched == NULL);
}

static void
test_connection_match_ip4_routes2 (void)
{
	gs_unref_object NMConnection *orig = NULL, *copy = NULL;
	NMConnection *matched;
	gs_free_slist GSList *connections = NULL;
	NMSettingIPConfig *s_ip4;

	orig = _match_connection_new ();

	s_ip4 = nm_connection_get_setting_ip4_config (orig);
	g_assert (s_ip4);
	g_object_set (G_OBJECT (s_ip4),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP4_CONFIG_METHOD_MANUAL,
	              NULL);

	nmtst_setting_ip_config_add_address (s_ip4, "10.0.0.1", 8);

	/* Clone connection */
	copy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, copy);

	/* Set routes on original connection */
	nmtst_setting_ip_config_add_route (s_ip4, "172.25.16.0", 24, "10.0.0.2", -1);
	nmtst_setting_ip_config_add_route (s_ip4, "172.25.17.0", 24, "10.0.0.3", 20);

	/* Set routes on cloned connection, changing order and using explicit metrics */
	s_ip4 = nm_connection_get_setting_ip4_config (copy);
	g_assert (s_ip4);
	nmtst_setting_ip_config_add_route (s_ip4, "172.25.17.0", 24, "10.0.0.3", 20);
	nmtst_setting_ip_config_add_route (s_ip4, "172.25.16.0", 24, "10.0.0.2", 100);

	/* Try to match the connections using different default metrics */
	matched = _match_connection (connections, orig, FALSE, 100, 0);
	g_assert (matched == copy);
	matched = _match_connection (connections, orig, FALSE, 500, 0);
	g_assert (matched == NULL);
}

static void
test_connection_match_ip6_routes (void)
{
	gs_unref_object NMConnection *orig = NULL, *copy = NULL;
	NMConnection *matched;
	gs_free_slist GSList *connections = NULL;
	NMSettingIPConfig *s_ip6;

	orig = _match_connection_new ();

	s_ip6 = nm_connection_get_setting_ip6_config (orig);
	g_assert (s_ip6);
	g_object_set (G_OBJECT (s_ip6),
	              NM_SETTING_IP_CONFIG_METHOD, NM_SETTING_IP6_CONFIG_METHOD_MANUAL,
	              NULL);

	nmtst_setting_ip_config_add_address (s_ip6, "fd01::15", 64);

	/* Clone connection */
	copy = nm_simple_connection_new_clone (orig);
	connections = g_slist_append (connections, copy);

	/* Set routes on original connection */
	nmtst_setting_ip_config_add_route (s_ip6, "2001:db8:a:b:0:0:0:0", 64, "fd01::16", -1);

	/* Set routes on cloned connection */
	s_ip6 = nm_connection_get_setting_ip6_config (copy);
	g_assert (s_ip6);
	nmtst_setting_ip_config_add_route (s_ip6, "2001:db8:a:b:0:0:0:0", 64, "fd01::16", 50);

	/* Try to match the connections */
	matched = _match_connection (connections, orig, FALSE, 0, 100);
	g_assert (matched == NULL);
	matched = _match_connection (connections, orig, FALSE, 0, 50);
	g_assert (matched == copy);
}

#define do_test_wildcard_match(str, result, ...) \
	g_assert (nm_wildcard_match_check (str, \
	                                  (const char *const[]) { __VA_ARGS__ }, \
	                                  NM_NARG (__VA_ARGS__)) \
	          == result);

static void
test_wildcard_match (void)
{
	do_test_wildcard_match ("foobar", TRUE);

	do_test_wildcard_match ("foo",    TRUE,  "foo", "bar", "baz");
	do_test_wildcard_match ("bar",    TRUE,  "foo", "bar", "baz");
	do_test_wildcard_match ("baz",    TRUE,  "foo", "bar", "baz");
	do_test_wildcard_match ("aaa",    FALSE, "foo", "bar", "baz");
	do_test_wildcard_match ("",       FALSE, "foo", "bar", "baz");

	do_test_wildcard_match ("ens1",   TRUE,  "ens1*");
	do_test_wildcard_match ("ens10",  TRUE,  "ens1*");
	do_test_wildcard_match ("ens11",  TRUE,  "ens1*");
	do_test_wildcard_match ("ens12",  TRUE,  "ens1*");
	do_test_wildcard_match ("eth0",   FALSE, "ens1*");
	do_test_wildcard_match ("ens",    FALSE, "ens1*");

	do_test_wildcard_match ("ens1*",  TRUE,  "ens1\\*");
	do_test_wildcard_match ("ens1" ,  FALSE, "ens1\\*");
	do_test_wildcard_match ("ens10",  FALSE, "ens1\\*");

	do_test_wildcard_match ("abcd",   TRUE,   "ab??");
	do_test_wildcard_match ("ab",     FALSE,  "ab??");

	do_test_wildcard_match ("ab??",   TRUE,  "ab\\?\\?");
	do_test_wildcard_match ("abcd",   FALSE, "ab\\?\\?");

	do_test_wildcard_match ("ens10",  TRUE,  "ens1*", "!ens11");
	do_test_wildcard_match ("ens11",  FALSE, "ens1*", "!ens11");
	do_test_wildcard_match ("ens12",  TRUE,  "ens1*", "!ens11");

	do_test_wildcard_match ("a",      FALSE, "!a", "!b");
	do_test_wildcard_match ("b",      FALSE, "!a", "!b");
	do_test_wildcard_match ("c",      TRUE,  "!a", "!b");
	do_test_wildcard_match ("!a",     TRUE,  "!a", "!b");

	do_test_wildcard_match ("!net",   TRUE,  "\\!net");
	do_test_wildcard_match ("net",    FALSE, "\\!net");
	do_test_wildcard_match ("ens10",  FALSE, "\\!net");
	do_test_wildcard_match ("\\!net", FALSE, "\\!net");

	do_test_wildcard_match ("eth0",   FALSE, "*eth?", "!veth*", "!*0");
	do_test_wildcard_match ("eth1",   TRUE,  "*eth?", "!veth*", "!*0");
	do_test_wildcard_match ("myeth0", FALSE, "*eth?", "!veth*", "!*0");
	do_test_wildcard_match ("myeth2", TRUE,  "*eth?", "!veth*", "!*0");
	do_test_wildcard_match ("veth0",  FALSE, "*eth?", "!veth*", "!*0");
	do_test_wildcard_match ("veth1",  FALSE, "*eth?", "!veth*", "!*0");
	do_test_wildcard_match ("dummy1", FALSE, "*eth?", "!veth*", "!*0");

	do_test_wildcard_match ("a",      TRUE,  "!!a");
	do_test_wildcard_match ("b",      TRUE,  "!!a");
	do_test_wildcard_match ("!a",     FALSE, "!!a");

	do_test_wildcard_match ("\\",     TRUE,  "\\\\");
	do_test_wildcard_match ("\\\\",   FALSE, "\\\\");
	do_test_wildcard_match ("",       FALSE, "\\\\");

	do_test_wildcard_match ("name",   FALSE, "name[123]");
	do_test_wildcard_match ("name1",  TRUE,  "name[123]");
	do_test_wildcard_match ("name2",  TRUE,  "name[123]");
	do_test_wildcard_match ("name3",  TRUE,  "name[123]");
	do_test_wildcard_match ("name4",  FALSE, "name[123]");

	do_test_wildcard_match ("[a]",    TRUE,  "\\[a\\]");
}

static NMConnection *
_create_connection_autoconnect (const char *id, gboolean autoconnect, int autoconnect_priority)
{
	NMConnection *c;
	NMSettingConnection *s_con;

	c = nmtst_create_minimal_connection (id, NULL, NM_SETTING_WIRED_SETTING_NAME, &s_con);
	g_object_set (s_con,
	              NM_SETTING_CONNECTION_AUTOCONNECT, autoconnect,
	              NM_SETTING_CONNECTION_AUTOCONNECT_PRIORITY, autoconnect_priority,
	              NULL);
	nmtst_connection_normalize (c);
	return c;
}

static int
_cmp_autoconnect_priority_p_with_data (gconstpointer pa, gconstpointer pb, gpointer user_data)
{
	return nm_utils_cmp_connection_by_autoconnect_priority (*((NMConnection **) pa), *((NMConnection **) pb));
}

static void
_test_connection_sort_autoconnect_priority_one (NMConnection **list, gboolean shuffle)
{
	int i, j;
	int count = 0;
	gs_unref_ptrarray GPtrArray *connections = g_ptr_array_new ();

	while (list[count])
		count++;
	g_assert (count > 1);

	/* copy the list of connections over to @connections and shuffle. */
	for (i = 0; i < count; i++)
		g_ptr_array_add (connections, list[i]);
	if (shuffle) {
		for (i = count - 1; i > 0; i--) {
			j = g_rand_int (nmtst_get_rand ()) % (i + 1);
			NMTST_SWAP (connections->pdata[i], connections->pdata[j]);
		}
	}

	/* sort it... */
	g_ptr_array_sort_with_data (connections, _cmp_autoconnect_priority_p_with_data, NULL);

	for (i = 0; i < count; i++) {
		if (list[i] == connections->pdata[i])
			continue;
		if (shuffle && nm_utils_cmp_connection_by_autoconnect_priority (list[i], connections->pdata[i]) == 0)
			continue;
		g_message ("After sorting, the order of connections is not as expected!! Offending index: %d", i);
		for (j = 0; j < count; j++)
			g_message ("  %3d:  %p/%-20s - %p/%-20s", j, list[j], nm_connection_get_id (list[j]), connections->pdata[j], nm_connection_get_id (connections->pdata[j]));
		g_assert_not_reached ();
	}
}

static void
_test_connection_sort_autoconnect_priority_free (NMConnection **list)
{
	while (*list) {
		g_object_unref (*list);
		*list = NULL;
	}
}

static void
test_connection_sort_autoconnect_priority (void)
{
	NMConnection *c1[] = {
		_create_connection_autoconnect ("AC/100", TRUE, 100),
		_create_connection_autoconnect ("AC/100", TRUE, 100),
		_create_connection_autoconnect ("AC/99", TRUE, 99),
		_create_connection_autoconnect ("AC/0", TRUE, 0),
		_create_connection_autoconnect ("AC/0", TRUE, 0),
		_create_connection_autoconnect ("AC/-1", TRUE, -1),
		_create_connection_autoconnect ("AC/-3", TRUE, -3),
		_create_connection_autoconnect ("ac/0", FALSE, 0),
		_create_connection_autoconnect ("ac/0", FALSE, 0),
		_create_connection_autoconnect ("ac/1", FALSE, 1),
		_create_connection_autoconnect ("ac/-1", FALSE, -1),
		_create_connection_autoconnect ("ac/1", FALSE, 1),
		_create_connection_autoconnect ("ac/0", FALSE, 0),
		NULL,
	};
	NMConnection *c2[] = {
		_create_connection_autoconnect ("AC/100", TRUE, 100),
		_create_connection_autoconnect ("AC/99", TRUE, 99),
		_create_connection_autoconnect ("AC/0", TRUE, 0),
		_create_connection_autoconnect ("AC/-1", TRUE, -1),
		_create_connection_autoconnect ("AC/-3", TRUE, -3),
		_create_connection_autoconnect ("ac/0", FALSE, 0),
		NULL,
	};

	_test_connection_sort_autoconnect_priority_one (c1, FALSE);
	_test_connection_sort_autoconnect_priority_one (c2, FALSE);
	_test_connection_sort_autoconnect_priority_one (c1, TRUE);
	_test_connection_sort_autoconnect_priority_one (c2, TRUE);

	_test_connection_sort_autoconnect_priority_free (c1);
	_test_connection_sort_autoconnect_priority_free (c2);
}

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

#define MATCH_S390 "S390:"
#define MATCH_DRIVER "DRIVER:"

static NMMatchSpecMatchType
_test_match_spec_device (const GSList *specs, const char *match_str)
{
	if (match_str && g_str_has_prefix (match_str, MATCH_S390))
		return nm_match_spec_device (specs, NULL, NULL, NULL, NULL, NULL, &match_str[NM_STRLEN (MATCH_S390)], NULL);
	if (match_str && g_str_has_prefix (match_str, MATCH_DRIVER)) {
		gs_free char *s = g_strdup (&match_str[NM_STRLEN (MATCH_DRIVER)]);
		char *t;

		t = strchr (s, '|');
		if (t) {
			t[0] = '\0';
			t++;
		}
		return nm_match_spec_device (specs, NULL, NULL, s, t, NULL, NULL, NULL);
	}
	return nm_match_spec_device (specs, match_str, NULL, NULL, NULL, NULL, NULL, NULL);
}

static void
_do_test_match_spec_device (const char *spec_str, const char **matches, const char **no_matches, const char **neg_matches)
{
	GSList *specs, *specs_randperm = NULL, *specs_resplit, *specs_i, *specs_j;
	guint i;
	gs_free char *specs_joined = NULL;
	const char *s;
	static const char *no_matches_default[] = {
		"e",
		"em",
		"em*",
		"em\\",
		"em\\*",
		"em\\1",
		"em\\11",
		"em\\2",
		"em1",
		"em11",
		"em2",
		"=em*",
		NULL
	};

	g_assert (spec_str);

	specs = nm_match_spec_split (spec_str);

	/* assert that split(join(specs)) == specs */
	specs_joined = nm_match_spec_join (specs);
	specs_resplit = nm_match_spec_split (specs_joined);
	specs_i = specs;
	specs_j = specs_resplit;
	while (specs_i && specs_j && g_strcmp0 (specs_i->data, specs_j->data) == 0) {
		specs_i = specs_i->next;
		specs_j = specs_j->next;
	}
	g_assert (!specs_i);
	g_assert (!specs_j);
	g_slist_free_full (specs_resplit, g_free);

	/* also check the matches in the random order. They must yield the same result because
	 * matches are inclusive -- except "except:" which always wins. */
	specs_randperm = nmtst_rand_perm_gslist (NULL, g_slist_copy (specs));

	for (i = 0; matches && matches[i]; i++) {
		g_assert (_test_match_spec_device (specs, matches[i]) == NM_MATCH_SPEC_MATCH);
		g_assert (_test_match_spec_device (specs_randperm, matches[i]) == NM_MATCH_SPEC_MATCH);
	}
	for (i = 0; neg_matches && neg_matches[i]; i++) {
		g_assert (_test_match_spec_device (specs, neg_matches[i]) == NM_MATCH_SPEC_NEG_MATCH);
		g_assert (_test_match_spec_device (specs_randperm, neg_matches[i]) == NM_MATCH_SPEC_NEG_MATCH);
	}
	for (i = 0; no_matches && no_matches[i]; i++) {
		g_assert (_test_match_spec_device (specs, no_matches[i]) == NM_MATCH_SPEC_NO_MATCH);
		g_assert (_test_match_spec_device (specs_randperm, no_matches[i]) == NM_MATCH_SPEC_NO_MATCH);
	}
	if (!no_matches) {
		for (i = 0; (s = no_matches_default[i]); i++) {
			if (   (matches && g_strv_contains (matches, s))
			    || (neg_matches && g_strv_contains (neg_matches, s)))
				continue;
			g_assert (_test_match_spec_device (specs, s) == NM_MATCH_SPEC_NO_MATCH);
			g_assert (_test_match_spec_device (specs_randperm, s) == NM_MATCH_SPEC_NO_MATCH);
		}
	}

	g_slist_free (specs_randperm);
	g_slist_free_full (specs, g_free);
}

static void
test_match_spec_device (void)
{
#define S(...) ((const char *[]) { __VA_ARGS__, NULL } )
	_do_test_match_spec_device ("em1",
	                            S ("em1"),
	                            NULL,
	                            NULL);
	_do_test_match_spec_device ("em1,em2",
	                            S ("em1", "em2"),
	                            NULL,
	                            NULL);
	_do_test_match_spec_device ("em1,em2,interface-name:em2",
	                            S ("em1", "em2"),
	                            NULL,
	                            NULL);
	_do_test_match_spec_device ("interface-name:em1",
	                            S ("em1"),
	                            NULL,
	                            NULL);
	_do_test_match_spec_device ("interface-name:em*",
	                            S ("em", "em*", "em\\", "em\\*", "em\\1", "em\\11", "em\\2", "em1", "em11", "em2", "em3"),
	                            NULL,
	                            NULL);
	_do_test_match_spec_device ("interface-name:em\\*",
	                            S ("em\\", "em\\*", "em\\1", "em\\11", "em\\2"),
	                            NULL,
	                            NULL);
	_do_test_match_spec_device ("interface-name:~em\\*",
	                            S ("em\\", "em\\*", "em\\1", "em\\11", "em\\2"),
	                            NULL,
	                            NULL);
	_do_test_match_spec_device ("except:*",
	                            NULL,
	                            S (NULL),
	                            S ("a"));
	_do_test_match_spec_device ("interface-name:=em*",
	                            S ("em*"),
	                            NULL,
	                            NULL);
	_do_test_match_spec_device ("interface-name:em*,except:interface-name:em1*",
	                            S ("em", "em*", "em\\", "em\\*", "em\\1", "em\\11", "em\\2", "em2", "em3"),
	                            NULL,
	                            S ("em1", "em11"));
	_do_test_match_spec_device ("interface-name:em*,except:interface-name:=em*",
	                            S ("em", "em\\", "em\\*", "em\\1", "em\\11", "em\\2", "em1", "em11", "em2", "em3"),
	                            NULL,
	                            S ("em*"));
	_do_test_match_spec_device ("aa,bb,cc\\,dd,e,,",
	                            S ("aa", "bb", "cc,dd", "e"),
	                            NULL,
	                            NULL);
	_do_test_match_spec_device ("aa;bb;cc\\;dd;e,;",
	                            S ("aa", "bb", "cc;dd", "e"),
	                            NULL,
	                            NULL);
	_do_test_match_spec_device ("interface-name:em\\;1,em\\,2,\\,,\\\\,,em\\\\x",
	                            S ("em;1", "em,2", ",", "\\", "em\\x"),
	                            NULL,
	                            NULL);
	_do_test_match_spec_device ("\\s\\s,\\sinterface-name:a,\\s,",
	                            S ("  ", " ", " interface-name:a"),
	                            NULL,
	                            NULL);
	_do_test_match_spec_device (" aa ;  bb   ; cc\\;dd  ;e , ; \t\\t  , ",
	                            S ("aa", "bb", "cc;dd", "e", "\t"),
	                            NULL,
	                            NULL);

	_do_test_match_spec_device ("s390-subchannels:0.0.1000\\,0.0.1001",
	                            S (MATCH_S390"0.0.1000", MATCH_S390"0.0.1000,deadbeef", MATCH_S390"0.0.1000,0.0.1001", MATCH_S390"0.0.1000,0.0.1002"),
	                            S (MATCH_S390"0.0.1001"),
	                            NULL);
	_do_test_match_spec_device ("*,except:s390-subchannels:0.0.1000\\,0.0.1001",
	                            NULL,
	                            S (NULL),
	                            S (MATCH_S390"0.0.1000", MATCH_S390"0.0.1000,deadbeef", MATCH_S390"0.0.1000,0.0.1001", MATCH_S390"0.0.1000,0.0.1002"));

	_do_test_match_spec_device ("driver:DRV",
	                            S (MATCH_DRIVER"DRV", MATCH_DRIVER"DRV|1.6"),
	                            S (MATCH_DRIVER"DR", MATCH_DRIVER"DR*"),
	                            NULL);
	_do_test_match_spec_device ("driver:DRV//",
	                            S (MATCH_DRIVER"DRV/"),
	                            S (MATCH_DRIVER"DRV/|1.6", MATCH_DRIVER"DR", MATCH_DRIVER"DR*"),
	                            NULL);
	_do_test_match_spec_device ("driver:DRV//*",
	                            S (MATCH_DRIVER"DRV/", MATCH_DRIVER"DRV/|1.6"),
	                            S (MATCH_DRIVER"DR", MATCH_DRIVER"DR*"),
	                            NULL);
	_do_test_match_spec_device ("driver:DRV//1.5*",
	                            S (MATCH_DRIVER"DRV/|1.5", MATCH_DRIVER"DRV/|1.5.2"),
	                            S (MATCH_DRIVER"DRV/", MATCH_DRIVER"DRV/|1.6", MATCH_DRIVER"DR", MATCH_DRIVER"DR*"),
	                            NULL);
#undef S
}

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

static void
_do_test_match_spec_config (const char *file, int line, const char *spec_str, guint version, guint v_maj, guint v_min, guint v_mic, NMMatchSpecMatchType expected)
{
	GSList *specs;
	NMMatchSpecMatchType match_result;
	guint c_maj, c_min, c_mic;

	g_assert_cmpint (version, ==, nm_encode_version (v_maj, v_min, v_mic));

	nm_decode_version (version, &c_maj, &c_min, &c_mic);
	g_assert_cmpint (c_maj, ==, c_maj);
	g_assert_cmpint (c_min, ==, c_min);
	g_assert_cmpint (c_mic, ==, c_mic);

	specs = nm_match_spec_split (spec_str);

	match_result = nm_match_spec_config (specs, version, NULL);

	if (expected != match_result)
		g_error ("%s:%d: failed comparing \"%s\" with %u.%u.%u. Expected %d, but got %d", file, line, spec_str, v_maj, v_min, v_mic, (int) expected, (int) match_result);

	if (g_slist_length (specs) == 1 && match_result != NM_MATCH_SPEC_NEG_MATCH) {
		/* there is only one spec in the list... test that we match except: */
		char *sss = g_strdup_printf ("except:%s", (char *) specs->data);
		GSList *specs2 = g_slist_append (NULL, sss);
		NMMatchSpecMatchType match_result2;

		match_result2 = nm_match_spec_config (specs2, version, NULL);
		if (match_result == NM_MATCH_SPEC_NO_MATCH)
			g_assert_cmpint (match_result2, ==, NM_MATCH_SPEC_NO_MATCH);
		else
			g_assert_cmpint (match_result2, ==, NM_MATCH_SPEC_NEG_MATCH);

		g_slist_free_full (specs2, g_free);
	}

	g_slist_free_full (specs, g_free);
}
#define do_test_match_spec_config(spec, v_maj, v_min, v_mic, expected) \
	_do_test_match_spec_config (__FILE__, __LINE__, (""spec), NM_ENCODE_VERSION ((v_maj), (v_min), (v_mic)), (v_maj), (v_min), (v_mic), (expected))

static void
test_match_spec_config (void)
{
	do_test_match_spec_config ("", 1, 2, 3, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version:1.2.3", 1, 2, 2, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version:1.2.3", 1, 2, 3, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version:1.2.3", 1, 2, 4, NM_MATCH_SPEC_NO_MATCH);

	do_test_match_spec_config ("nm-version:1.2", 1, 1, 2, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version:1.2", 1, 2, 0, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version:1.2", 1, 2, 2, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version:1.2", 1, 2, 3, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version:1.2", 1, 2, 4, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version:1.2", 1, 3, 0, NM_MATCH_SPEC_NO_MATCH);

	do_test_match_spec_config ("nm-version-min:1.2.3", 0, 2, 30, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2.3", 1, 1, 1, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2.3", 1, 2, 2, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2.3", 1, 2, 3, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2.3", 1, 2, 5, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2.3", 1, 3, 0, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2.3", 1, 3, 30, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2.3", 1, 4, 30, NM_MATCH_SPEC_NO_MATCH);

	do_test_match_spec_config ("nm-version-min:1.2", 0, 2, 30, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2", 1, 1, 1, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2", 1, 2, 0, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2", 1, 2, 3, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2", 1, 2, 5, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2", 1, 3, 0, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2", 1, 3, 30, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.2", 1, 4, 30, NM_MATCH_SPEC_MATCH);

	do_test_match_spec_config ("nm-version-min:1", 0, 2, 30, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1", 1, 1, 1, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1", 1, 2, 0, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1", 1, 2, 3, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1", 1, 2, 5, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1", 1, 3, 0, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1", 1, 3, 30, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1", 1, 4, 30, NM_MATCH_SPEC_MATCH);

	do_test_match_spec_config ("nm-version-max:1.2.3", 0, 2, 30, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2.3", 1, 1, 1, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2.3", 1, 2, 0, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2.3", 1, 2, 1, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2.3", 1, 2, 2, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2.3", 1, 2, 3, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2.3", 1, 2, 5, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2.3", 1, 3, 0, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2.3", 1, 3, 30, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2.3", 1, 4, 30, NM_MATCH_SPEC_NO_MATCH);

	do_test_match_spec_config ("nm-version-max:1.2", 0, 2, 30, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2", 1, 1, 1, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2", 1, 2, 0, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2", 1, 2, 3, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2", 1, 2, 5, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2", 1, 3, 0, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2", 1, 3, 30, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-max:1.2", 1, 4, 30, NM_MATCH_SPEC_NO_MATCH);

	do_test_match_spec_config ("nm-version-max:1", 0, 2, 30, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1", 1, 1, 1, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1", 1, 2, 0, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1", 1, 2, 3, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1", 1, 2, 5, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1", 1, 3, 0, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1", 1, 3, 30, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1", 1, 4, 30, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-max:1", 2, 4, 30, NM_MATCH_SPEC_NO_MATCH);

	do_test_match_spec_config ("except:nm-version:1.4.8", 1, 6, 0, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,except:nm-version:1.4.8", 1, 6, 0, NM_MATCH_SPEC_MATCH);

	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 2, 0, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 2, 0, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 2, 15, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 2, 16, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 2, 17, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 2, 20, NM_MATCH_SPEC_MATCH);

	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 3, 0, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 4, 0, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 4, 5, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 4, 6, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 4, 7, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 4, 8, NM_MATCH_SPEC_NEG_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 4, 9, NM_MATCH_SPEC_MATCH);

	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 5, 0, NM_MATCH_SPEC_NO_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 6, 0, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 6, 5, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 7, 7, NM_MATCH_SPEC_MATCH);
	do_test_match_spec_config ("nm-version-min:1.6,nm-version-min:1.4.6,nm-version-min:1.2.16,except:nm-version:1.4.8", 1, 8, 8, NM_MATCH_SPEC_MATCH);
}

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

static void
test_nm_utils_strbuf_append (void)
{
#define BUF_ORIG "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
#define STR_ORIG "abcdefghijklmnopqrstuvwxyz"
	int buf_len;
	int rep;
	char buf[NM_STRLEN (BUF_ORIG) + 1];
	char str[NM_STRLEN (BUF_ORIG) + 1];

	for (buf_len = 0; buf_len < 10; buf_len++) {
		for (rep = 0; rep < 50; rep++) {
			const int s_len = nmtst_get_rand_int () % (sizeof (str) - 5);
			char *t_buf;
			gsize t_len;
			int test_mode;

			strcpy (str, STR_ORIG);
			str[s_len] = '\0';

			g_assert_cmpint (str[sizeof (str) - 1], ==, '\0');
			g_assert_cmpint (strlen (str), ==, s_len);

			strcpy (buf, BUF_ORIG);

			t_buf = buf;
			t_len = buf_len;

			test_mode = nmtst_get_rand_int () % 5;

			switch (test_mode) {
			case 0:
				if (s_len == 1) {
					nm_utils_strbuf_append_c (&t_buf, &t_len, str[0]);
					break;
				}
				/* fall through */
			case 1:
				nm_utils_strbuf_append_str (&t_buf, &t_len, str);
				break;
			case 2:
				if (s_len == 1) {
					nm_utils_strbuf_append (&t_buf, &t_len, "%c", str[0]);
					break;
				}
				/* fall through */
			case 3:
				nm_utils_strbuf_append (&t_buf, &t_len, "%s", str);
				break;
			case 4:
				g_snprintf (t_buf, t_len, "%s", str);
				if (   t_len > 0
				    && strlen (str) >= buf_len
				    && (nmtst_get_rand_int () % 2)) {
					/* the string was truncated by g_snprintf(). That means, at the last position in the
					 * buffer is now NUL.
					 * Replace the NUL by the actual character, and check that nm_utils_strbuf_seek_end()
					 * does the right thing: NUL terminate the buffer and seek past the end of the buffer. */
					g_assert_cmpmem (t_buf, t_len - 1, str, t_len - 1);
					g_assert (t_buf[t_len - 1] == '\0');
					g_assert (str[t_len - 1] != '\0');
					t_buf[t_len - 1] = str[t_len - 1];
					nm_utils_strbuf_seek_end (&t_buf, &t_len);
					g_assert (t_len == 0);
					g_assert (t_buf == &buf[buf_len]);
					g_assert (t_buf[-1] == '\0');
				} else {
					nm_utils_strbuf_seek_end (&t_buf, &t_len);
					if (   buf_len > 0
					    && strlen (str) + 1 > buf_len) {
						/* the buffer was truncated by g_snprintf() above.
						 *
						 * But nm_utils_strbuf_seek_end() does not recognize that and returns
						 * a remaining length of 1.
						 *
						 * Note that other nm_utils_strbuf_append*() functions recognize
						 * truncation, and properly set the remaining length to zero.
						 * As the assertions below check for the behavior of nm_utils_strbuf_append*(),
						 * we assert here that nm_utils_strbuf_seek_end() behaved as expected, and then
						 * adjust t_buf/t_len according to the "is-truncated" case. */
						g_assert (t_len == 1);
						g_assert (t_buf == &buf[buf_len - 1]);
						g_assert (t_buf[0] == '\0');
						t_len = 0;
						t_buf++;
					}
				}
				break;
			}

			/* Assert that the source-buffer is unmodified. */
			g_assert_cmpint (str[s_len], ==, '\0');
			str[s_len] = STR_ORIG[s_len];
			g_assert (!memcmp (str, STR_ORIG, sizeof (str)));
			str[s_len] = '\0';

			g_assert_cmpint (t_len, >=, 0);
			g_assert_cmpint (t_len, <=, buf_len);
			g_assert (t_buf >= buf);

			/* Assert what was written to the destination buffer. */
			switch (buf_len) {
			case 0:
				g_assert_cmpint (t_len, ==, 0);
				g_assert (t_buf == buf);
				g_assert (!memcmp (buf, BUF_ORIG, sizeof (buf)));
				break;
			case 1:
				if (s_len == 0) {
					g_assert_cmpint (t_len, ==, 1);
					g_assert (t_buf == buf);
					g_assert (buf[0] == '\0');
					g_assert (!memcmp (&buf[1], &BUF_ORIG[1], sizeof (buf) - 1));
				} else {
					g_assert_cmpint (t_len, ==, 0);
					g_assert (t_buf == &buf[1]);
					g_assert (buf[0] == '\0');
					g_assert (!memcmp (&buf[1], &BUF_ORIG[1], sizeof (buf) - 1));
				}
				break;
			default:
				if (s_len == 0) {
					g_assert_cmpint (t_len, ==, buf_len);
					g_assert (t_buf == buf);
					g_assert (buf[0] == '\0');
					g_assert (!memcmp (&buf[1], &BUF_ORIG[1], sizeof (buf) - 1));
				} else if (buf_len <= s_len) {
					g_assert_cmpint (t_len, ==, 0);
					g_assert (t_buf == &buf[buf_len]);
					g_assert (!memcmp (buf, STR_ORIG, buf_len - 1));
					g_assert (buf[buf_len - 1] == '\0');
					g_assert (!memcmp (&buf[buf_len], &BUF_ORIG[buf_len], sizeof (buf) - buf_len));
				} else {
					g_assert_cmpint (t_len, >, 0);
					g_assert_cmpint (buf_len - t_len, ==, s_len);
					g_assert_cmpint (strlen (buf), ==, s_len);
					g_assert (t_buf == &buf[s_len]);
					g_assert (!memcmp (buf, STR_ORIG, s_len));
					g_assert (buf[s_len] == '\0');
					g_assert (!memcmp (&buf[s_len + 1], &BUF_ORIG[s_len + 1], sizeof (buf) - s_len - 1));
				}
				break;
			}
		}
	}
}

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

static void
test_duplicate_decl_specifier (void)
{
	/* We're intentionally assigning values to static arrays v_const
	 * and v_result without using it afterwards just so that valgrind
	 * doesn't complain about the leak. */
	NM_PRAGMA_WARNING_DISABLE("-Wunused-but-set-variable")

	/* have some static variables, so that the result is certainly not optimized out. */
	static const int v_const[1] = { 1 };
	static int v_result[1] = { };
	const const int v2 = 3;

	/* Test that we don't get a compiler warning about duplicate const specifier.
	 * C99 allows that and it can easily happen in macros. */

#define TEST_MAX(a, b) \
	({ \
		const typeof(a) _a = (a); \
		const typeof(b) _b = (b); \
		\
		(_a > _b ? _a : _b); \
	})

	v_result[0] = TEST_MAX (v_const[0], nmtst_get_rand_int () % 5) + v2;

	NM_PRAGMA_WARNING_REENABLE
}

static void
test_reverse_dns_ip4 (void)
{
	guint32 addr;
	GPtrArray *domains = g_ptr_array_new_full (8, g_free);

	inet_pton (AF_INET, "7.2.3.0", &addr);
	nm_utils_get_reverse_dns_domains_ip4 (addr, 27, domains);
	g_assert_cmpuint (domains->len, ==, 32);
	g_assert_cmpstr (domains->pdata[0], ==, "0.3.2.7.in-addr.arpa");
	g_assert_cmpstr (domains->pdata[31], ==, "31.3.2.7.in-addr.arpa");

	g_ptr_array_set_size (domains, 0);

	inet_pton (AF_INET, "10.155.16.0", &addr);
	nm_utils_get_reverse_dns_domains_ip4 (addr, 22, domains);
	g_assert_cmpuint (domains->len, ==, 4);
	g_assert_cmpstr (domains->pdata[0], ==, "16.155.10.in-addr.arpa");
	g_assert_cmpstr (domains->pdata[1], ==, "17.155.10.in-addr.arpa");
	g_assert_cmpstr (domains->pdata[2], ==, "18.155.10.in-addr.arpa");
	g_assert_cmpstr (domains->pdata[3], ==, "19.155.10.in-addr.arpa");

	g_ptr_array_set_size (domains, 0);

	inet_pton (AF_INET, "4.5.6.7", &addr);
	nm_utils_get_reverse_dns_domains_ip4 (addr, 32, domains);
	g_assert_cmpuint (domains->len, ==, 1);
	g_assert_cmpstr (domains->pdata[0], ==, "7.6.5.4.in-addr.arpa");

	g_ptr_array_set_size (domains, 0);

	inet_pton (AF_INET, "4.5.6.7", &addr);
	nm_utils_get_reverse_dns_domains_ip4 (addr, 8, domains);
	g_assert_cmpuint (domains->len, ==, 1);
	g_assert_cmpstr (domains->pdata[0], ==, "4.in-addr.arpa");

	g_ptr_array_set_size (domains, 0);

	inet_pton (AF_INET, "4.180.6.7", &addr);
	nm_utils_get_reverse_dns_domains_ip4 (addr, 9, domains);
	g_assert_cmpuint (domains->len, ==, 128);
	g_assert_cmpstr (domains->pdata[0], ==, "128.4.in-addr.arpa");
	g_assert_cmpstr (domains->pdata[1], ==, "129.4.in-addr.arpa");
	g_assert_cmpstr (domains->pdata[127], ==, "255.4.in-addr.arpa");

	g_ptr_array_set_size (domains, 0);

	inet_pton (AF_INET, "172.16.0.0", &addr);
	nm_utils_get_reverse_dns_domains_ip4 (addr, 12, domains);
	g_assert_cmpuint (domains->len, ==, 16);
	g_assert_cmpstr (domains->pdata[0],  ==, "16.172.in-addr.arpa");
	g_assert_cmpstr (domains->pdata[1],  ==, "17.172.in-addr.arpa");
	g_assert_cmpstr (domains->pdata[14], ==, "30.172.in-addr.arpa");
	g_assert_cmpstr (domains->pdata[15], ==, "31.172.in-addr.arpa");

	g_ptr_array_set_size (domains, 0);

	inet_pton (AF_INET, "1.2.3.4", &addr);
	nm_utils_get_reverse_dns_domains_ip4 (addr, 0, domains);
	g_assert_cmpuint (domains->len, ==, 0);

	g_ptr_array_unref (domains);
}

static void
test_reverse_dns_ip6 (void)
{
	struct in6_addr addr;
	GPtrArray *domains = g_ptr_array_new_full (8, g_free);

	inet_pton (AF_INET6, "1234::56", &addr);
	nm_utils_get_reverse_dns_domains_ip6 (&addr, 16, domains);
	g_assert_cmpuint (domains->len, ==, 1);
	g_assert_cmpstr (domains->pdata[0], ==, "4.3.2.1.ip6.arpa");

	g_ptr_array_set_size (domains, 0);

	inet_pton (AF_INET6, "1234::56", &addr);
	nm_utils_get_reverse_dns_domains_ip6 (&addr, 17, domains);
	g_assert_cmpuint (domains->len, ==, 8);
	g_assert_cmpstr (domains->pdata[0], ==, "0.4.3.2.1.ip6.arpa");
	g_assert_cmpstr (domains->pdata[1], ==, "1.4.3.2.1.ip6.arpa");
	g_assert_cmpstr (domains->pdata[7], ==, "7.4.3.2.1.ip6.arpa");

	g_ptr_array_set_size (domains, 0);

	inet_pton (AF_INET6, "2001:db8::", &addr);
	nm_utils_get_reverse_dns_domains_ip6 (&addr, 29, domains);
	g_assert_cmpuint (domains->len, ==, 8);
	g_assert_cmpstr (domains->pdata[0], ==, "8.b.d.0.1.0.0.2.ip6.arpa");
	g_assert_cmpstr (domains->pdata[1], ==, "9.b.d.0.1.0.0.2.ip6.arpa");
	g_assert_cmpstr (domains->pdata[7], ==, "f.b.d.0.1.0.0.2.ip6.arpa");

	g_ptr_array_set_size (domains, 0);

	inet_pton (AF_INET6, "0123:4567:89ab:cdef::", &addr);
	nm_utils_get_reverse_dns_domains_ip6 (&addr, 63, domains);
	g_assert_cmpuint (domains->len, ==, 2);
	g_assert_cmpstr (domains->pdata[0], ==, "e.e.d.c.b.a.9.8.7.6.5.4.3.2.1.0.ip6.arpa");
	g_assert_cmpstr (domains->pdata[1], ==, "f.e.d.c.b.a.9.8.7.6.5.4.3.2.1.0.ip6.arpa");

	g_ptr_array_set_size (domains, 0);

	inet_pton (AF_INET6, "fec0:1234:5678:9ab0::", &addr);
	nm_utils_get_reverse_dns_domains_ip6 (&addr, 61, domains);
	g_assert_cmpuint (domains->len, ==, 8);
	g_assert_cmpstr (domains->pdata[0], ==, "0.b.a.9.8.7.6.5.4.3.2.1.0.c.e.f.ip6.arpa");
	g_assert_cmpstr (domains->pdata[7], ==, "7.b.a.9.8.7.6.5.4.3.2.1.0.c.e.f.ip6.arpa");

	g_ptr_array_set_size (domains, 0);

	inet_pton (AF_INET6, "0123:4567:89ab:cdee::", &addr);
	nm_utils_get_reverse_dns_domains_ip6 (&addr, 0, domains);
	g_assert_cmpuint (domains->len, ==, 0);

	g_ptr_array_unref (domains);
}

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

static void
do_test_stable_id_parse (const char *stable_id,
                         NMUtilsStableType expected_stable_type,
                         const char *expected_generated)
{
	gs_free char *generated = NULL;
	NMUtilsStableType stable_type;

	if (expected_stable_type == NM_UTILS_STABLE_TYPE_GENERATED)
		g_assert (expected_generated);
	else
		g_assert (!expected_generated);

	if (expected_stable_type == NM_UTILS_STABLE_TYPE_UUID)
		g_assert (!stable_id);
	else
		g_assert (stable_id);

	stable_type = nm_utils_stable_id_parse (stable_id, "_DEVICE", "_BOOT", "_CONNECTION", &generated);

	g_assert_cmpint (expected_stable_type, ==, stable_type);

	if (stable_type == NM_UTILS_STABLE_TYPE_GENERATED) {
		g_assert_cmpstr (expected_generated, ==, generated);
		g_assert (generated);
	} else
		g_assert (!generated);
}

static void
test_stable_id_parse (void)
{
#define _parse_stable_id(stable_id)                     do_test_stable_id_parse (""stable_id"", NM_UTILS_STABLE_TYPE_STABLE_ID, NULL)
#define _parse_generated(stable_id, expected_generated) do_test_stable_id_parse (""stable_id"", NM_UTILS_STABLE_TYPE_GENERATED, ""expected_generated"")
#define _parse_random(stable_id)                        do_test_stable_id_parse (""stable_id"", NM_UTILS_STABLE_TYPE_RANDOM, NULL)
	do_test_stable_id_parse (NULL, NM_UTILS_STABLE_TYPE_UUID, NULL);
	_parse_stable_id ("");
	_parse_stable_id ("a");
	_parse_stable_id ("a$");
	_parse_stable_id ("a$x");
	_parse_stable_id (" ${a$x");
	_parse_stable_id ("${");
	_parse_stable_id ("${=");
	_parse_stable_id ("${a");
	_parse_stable_id ("${a$x");
	_parse_stable_id ("a$$");
	_parse_stable_id ("a$$x");
	_parse_stable_id ("a$${CONNECTION}");
	_parse_stable_id ("a$${CONNECTION}x");
	_parse_generated ("${CONNECTION}", "${CONNECTION}=11{_CONNECTION}");
	_parse_generated ("${${CONNECTION}", "${${CONNECTION}=11{_CONNECTION}");
	_parse_generated ("${CONNECTION}x", "${CONNECTION}=11{_CONNECTION}x");
	_parse_generated ("x${CONNECTION}", "x${CONNECTION}=11{_CONNECTION}");
	_parse_generated ("${BOOT}x", "${BOOT}=5{_BOOT}x");
	_parse_generated ("x${BOOT}", "x${BOOT}=5{_BOOT}");
	_parse_generated ("x${BOOT}${CONNECTION}", "x${BOOT}=5{_BOOT}${CONNECTION}=11{_CONNECTION}");
	_parse_generated ("xX${BOOT}yY${CONNECTION}zZ", "xX${BOOT}=5{_BOOT}yY${CONNECTION}=11{_CONNECTION}zZ");
	_parse_random ("${RANDOM}");
	_parse_random (" ${RANDOM}");
	_parse_random ("${BOOT}${RANDOM}");
}

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

static void
test_stable_id_generated_complete (void)
{
#define ASSERT(str, expected) \
	G_STMT_START { \
		gs_free char *_s = NULL; \
		\
		_s = nm_utils_stable_id_generated_complete ((str)); \
		g_assert_cmpstr ((expected), ==, _s); \
	} G_STMT_END

	ASSERT ("", "2jmj7l5rSw0yVb/vlWAYkK/YBwk");
	ASSERT ("a", "hvfkN/qlp/zhXR3cuerq6jd2Z7g");
	ASSERT ("password", "W6ph5Mm5Pz8GgiULbPgzG37mj9g");
#undef ASSERT
}

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

static void
test_nm_utils_exp10 (void)
{
#define FLOAT_CMP(a, b) \
	G_STMT_START { \
		double _a = (a); \
		double _b = (b); \
		\
		if (isinf (_b)) \
			g_assert (isinf (_a)); \
		else if (_b >= 0.0 && _b <= 0.0) \
			g_assert (_a - _b < G_MINFLOAT); \
		else { \
			double _x = (_a) - (_b); \
			g_assert (_b > 0.0); \
			if (_x < 0.0) \
				_x = -_x; \
			g_assert (_x / _b <  1E-10); \
		} \
	} G_STMT_END

	FLOAT_CMP (nm_utils_exp10 (G_MININT16),  0.0);
	FLOAT_CMP (nm_utils_exp10 (-310),        0.0);
	FLOAT_CMP (nm_utils_exp10 (-309),        0.0);
	FLOAT_CMP (nm_utils_exp10 (-308),        1e-308);
	FLOAT_CMP (nm_utils_exp10 (-307),        1e-307);
	FLOAT_CMP (nm_utils_exp10 (-1),          1e-1);
	FLOAT_CMP (nm_utils_exp10 (-2),          1e-2);
	FLOAT_CMP (nm_utils_exp10 (0),           1e0);
	FLOAT_CMP (nm_utils_exp10 (1),           1e1);
	FLOAT_CMP (nm_utils_exp10 (2),           1e2);
	FLOAT_CMP (nm_utils_exp10 (3),           1e3);
	FLOAT_CMP (nm_utils_exp10 (4),           1e4);
	FLOAT_CMP (nm_utils_exp10 (5),           1e5);
	FLOAT_CMP (nm_utils_exp10 (6),           1e6);
	FLOAT_CMP (nm_utils_exp10 (7),           1e7);
	FLOAT_CMP (nm_utils_exp10 (122),         1e122);
	FLOAT_CMP (nm_utils_exp10 (200),         1e200);
	FLOAT_CMP (nm_utils_exp10 (307),         1e307);
	FLOAT_CMP (nm_utils_exp10 (308),         1e308);
	FLOAT_CMP (nm_utils_exp10 (309),         INFINITY);
	FLOAT_CMP (nm_utils_exp10 (310),         INFINITY);
	FLOAT_CMP (nm_utils_exp10 (G_MAXINT16),  INFINITY);
}

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

static void
test_utils_file_is_in_path (void)
{
	g_assert (!nm_utils_file_is_in_path ("/", "/"));
	g_assert (!nm_utils_file_is_in_path ("//", "/"));
	g_assert (!nm_utils_file_is_in_path ("/a/", "/"));
	g_assert ( nm_utils_file_is_in_path ("/a", "/"));
	g_assert ( nm_utils_file_is_in_path ("///a", "/"));
	g_assert ( nm_utils_file_is_in_path ("//b/a", "/b//"));
	g_assert ( nm_utils_file_is_in_path ("//b///a", "/b//"));
	g_assert (!nm_utils_file_is_in_path ("//b///a/", "/b//"));
	g_assert (!nm_utils_file_is_in_path ("//b///a/", "/b/a/"));
	g_assert (!nm_utils_file_is_in_path ("//b///a", "/b/a/"));
	g_assert ( nm_utils_file_is_in_path ("//b///a/.", "/b/a/"));
	g_assert ( nm_utils_file_is_in_path ("//b///a/..", "/b/a/"));
}

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

#define _TEST_RC(searches, nameservers, options, expected) \
	G_STMT_START { \
		const char *const*const _searches = (searches); \
		const char *const*const _nameservers = (nameservers); \
		const char *const*const _options = (options); \
		gs_free char *_content = NULL; \
		\
		_content = nmtst_dns_create_resolv_conf (_searches, _nameservers, _options); \
		g_assert_cmpstr (_content, ==, expected); \
	} G_STMT_END

static void
test_dns_create_resolv_conf (void)
{
	_TEST_RC (NM_MAKE_STRV ("a"),
	          NULL,
	          NULL,
	          "# Generated by NetworkManager\n"
	          "search a\n"
	          "");

	_TEST_RC (NM_MAKE_STRV ("a", "b.com"),
	          NM_MAKE_STRV ("192.168.55.1", "192.168.56.1"),
	          NM_MAKE_STRV ("opt1", "opt2"),
	          "# Generated by NetworkManager\n"
	          "search a b.com\n"
	          "nameserver 192.168.55.1\n"
	          "nameserver 192.168.56.1\n"
	          "options opt1 opt2\n"
	          "");

	_TEST_RC (NM_MAKE_STRV ("a2x456789.b2x456789.c2x456789.d2x456789.e2x456789.f2x456789.g2x456789.h2x456789.i2x456789.j2x4567890",
	                        "a2y456789.b2y456789.c2y456789.d2y456789.e2y456789.f2y456789.g2y456789.h2y456789.i2y456789.j2y4567890",
	                        "a2z456789.b2z456789.c2z456789.d2z456789.e2z456789.f2z456789.g2z456789.h2z456789.i2z456789.j2z4567890"),
	          NULL,
	          NULL,
	          "# Generated by NetworkManager\n"
	          "search a2x456789.b2x456789.c2x456789.d2x456789.e2x456789.f2x456789.g2x456789.h2x456789.i2x456789.j2x4567890 a2y456789.b2y456789.c2y456789.d2y456789.e2y456789.f2y456789.g2y456789.h2y456789.i2y456789.j2y4567890                                                        a2z456789.b2z456789.c2z456789.d2z456789.e2z456789.f2z456789.g2z456789.h2z456789.i2z456789.j2z4567890\n"
	          "");

}

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

static void
test_machine_id_read (void)
{
	NMUuid machine_id_sd;
	const NMUuid *machine_id;
	char machine_id_str[33];
	gpointer logstate;

	logstate = nmtst_logging_disable (FALSE);
	/* If you run this test as root, without a valid /etc/machine-id,
	 * the code will try to get the secret-key. That is a bit ugly,
	 * but no real problem. */
	machine_id = nm_utils_machine_id_bin ();
	nmtst_logging_reenable (logstate);

	g_assert (machine_id);
	g_assert (_nm_utils_bin2hexstr_full (machine_id,
	                                     sizeof (NMUuid),
	                                     '\0',
	                                     FALSE,
	                                     machine_id_str) == machine_id_str);
	g_assert (strlen (machine_id_str) == 32);
	g_assert_cmpstr (machine_id_str, ==, nm_utils_machine_id_str ());

	/* double check with systemd's implementation... */
	if (!nm_sd_utils_id128_get_machine (&machine_id_sd)) {
		/* if systemd failed to read /etc/machine-id, the file likely
		 * is invalid. Our machine-id is fake, and we have nothing to
		 * compare against. */

		/* NOTE: this test will fail, if you don't have /etc/machine-id,
		 * but a valid "LOCALSTATEDIR/lib/dbus/machine-id" file.
		 * Just don't do that. */
		g_assert (nm_utils_machine_id_is_fake ());
	} else {
		g_assert (!nm_utils_machine_id_is_fake ());
		g_assert_cmpmem (&machine_id_sd, sizeof (NMUuid), machine_id, 16);
	}
}

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

static void
test_nm_sd_utils_generate_default_dhcp_client_id (gconstpointer test_data)
{
	const guint8 HASH_KEY[16] = { 0x80, 0x11, 0x8c, 0xc2, 0xfe, 0x4a, 0x03, 0xee, 0x3e, 0xd6, 0x0c, 0x6f, 0x36, 0x39, 0x14, 0x09 };
	/* We run the test twice with two ifindexes.
	 *
	 * One is "1", which we expect to exist and having a name "lo".
	 * The other is a random number, which we expect not to exist.
	 *
	 * Regardless of whether the ifindex actually exists, the tests are
	 * supposed to pass. However, when our expectations are not met, we
	 * silently miss test cases. */
	const int IFINDEX = GPOINTER_TO_INT (test_data)
	                    ? 1
	                    : (int) (nmtst_get_rand_int () % 10000);
	const guint8 mac_addr[ETH_ALEN] = { 0x20, 0xaf, 0x51, 0x42, 0x29, 0x05 };
	const guint16 duid_type_en = htons (2);
	const guint32 systemd_pen = htonl (43793);
	guint32 iaid_mac;
	guint32 iaid_ifname;
	gs_unref_bytes GBytes *client_id = NULL;
	char ifname_buf[IFNAMSIZ];
	const char *ifname;
	gboolean has_ifindex;
	gint64 u64;
	const guint8 *cid;
	const NMUuid *machine_id;

	/* see whether IFINDEX exists. */
	if (if_indextoname (IFINDEX, ifname_buf)) {
		ifname = ifname_buf;
		has_ifindex = TRUE;
	} else {
		ifname = "lo";
		has_ifindex = FALSE;
	}

	/* generate the iaid based on the ifname and assert for expected
	 * values.
	 *
	 * We often expect that the interface name is "lo". Hence, assert
	 * for the expected hash values explicitly.
	 *
	 * Note that the iaid generated by dhcp_identifier_set_iaid() is
	 * in native endianness (https://github.com/systemd/systemd/pull/10614). */
	u64 = c_siphash_hash (HASH_KEY, (const guint8 *) ifname, strlen (ifname));
	if (nm_streq (ifname, "lo"))
		g_assert_cmpint (u64, ==, 0x7297085c2b12c911llu);
	iaid_ifname = bswap_32 ((u64 & 0xffffffffu) ^ (u64 >> 32));
	if (nm_streq (ifname, "lo"))
		g_assert_cmpint (iaid_ifname, ==, 0x4dc18559u);

	/* generate the iaid based on the hard-coded MAC address */
	u64 = c_siphash_hash (HASH_KEY, mac_addr, sizeof (mac_addr));
	g_assert_cmpint (u64, ==, 0x1f3d1d8d15de49dcllu);
	iaid_mac = bswap_32 ((u64 & 0xffffffffu) ^ (u64 >> 32));
	g_assert_cmpint (iaid_mac, ==, 0x5154e30au);

	/* as it is, nm_sd_utils_generate_default_dhcp_client_id() resolves the ifname (based on the
	 * ifindex) and loads /etc/machine-id. Maybe the code should be refactored, to accept
	 * such external input as arguments (to ease testing).
	 *
	 * Instead, we just duplicate the steps here, which are don't internally by the
	 * function. Hey, it's a test. Let's re-implement what the code does here. */
	client_id = nm_sd_utils_generate_default_dhcp_client_id (IFINDEX, mac_addr, sizeof (mac_addr));

	if (!client_id) {
		/* the only reason why this can fail, is because /etc/machine-id is invalid. */
		if (!g_file_test ("/etc/machine-id", G_FILE_TEST_EXISTS)) {
			g_test_skip ("no /etc/machine-id");
			return;
		}
		g_assert_not_reached ();
	}

	g_assert_cmpint (g_bytes_get_size (client_id), ==, 19);
	cid = g_bytes_get_data (client_id, NULL);

	g_assert_cmpint (cid[0], ==, 255);
	if (has_ifindex)
		g_assert_cmpmem (&cid[1], 4, &iaid_ifname, sizeof (iaid_ifname));
	else
		g_assert_cmpmem (&cid[1], 4, &iaid_mac, sizeof (iaid_mac));
	g_assert_cmpmem (&cid[5], 2, &duid_type_en, sizeof (duid_type_en));
	g_assert_cmpmem (&cid[7], 4, &systemd_pen, sizeof (systemd_pen));

	machine_id = nm_utils_machine_id_bin ();
	u64 = htole64 (c_siphash_hash (HASH_KEY, (const guint8 *) machine_id, sizeof (*machine_id)));
	g_assert_cmpmem (&cid[11], 8, &u64, sizeof (u64));
}

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

NMTST_DEFINE ();

int
main (int argc, char **argv)
{
	nmtst_init_with_logging (&argc, &argv, NULL, "ALL");

	g_test_add_func ("/general/nm_utils_strbuf_append", test_nm_utils_strbuf_append);

	g_test_add_func ("/general/nm_utils_ip6_address_clear_host_address", test_nm_utils_ip6_address_clear_host_address);
	g_test_add_func ("/general/nm_utils_ip6_address_same_prefix", test_nm_utils_ip6_address_same_prefix);
	g_test_add_func ("/general/nm_utils_log_connection_diff", test_nm_utils_log_connection_diff);

	g_test_add_func ("/general/nm_utils_sysctl_ip_conf_path", test_nm_utils_sysctl_ip_conf_path);

	g_test_add_func ("/general/exp10", test_nm_utils_exp10);

	g_test_add_func ("/general/connection-match/basic", test_connection_match_basic);
	g_test_add_func ("/general/connection-match/ip6-method", test_connection_match_ip6_method);
	g_test_add_func ("/general/connection-match/ip6-method-ignore", test_connection_match_ip6_method_ignore);
	g_test_add_func ("/general/connection-match/ip6-method-ignore-auto", test_connection_match_ip6_method_ignore_auto);
	g_test_add_func ("/general/connection-match/ip4-method", test_connection_match_ip4_method);
	g_test_add_func ("/general/connection-match/con-interface-name", test_connection_match_interface_name);
	g_test_add_func ("/general/connection-match/wired", test_connection_match_wired);
	g_test_add_func ("/general/connection-match/wired2", test_connection_match_wired2);
	g_test_add_func ("/general/connection-match/cloned_mac", test_connection_match_cloned_mac);
	g_test_add_func ("/general/connection-match/no-match-ip4-addr", test_connection_no_match_ip4_addr);
	g_test_add_func ("/general/connection-match/no-match-vlan", test_connection_no_match_vlan);
	g_test_add_func ("/general/connection-match/routes/ip4/1", test_connection_match_ip4_routes1);
	g_test_add_func ("/general/connection-match/routes/ip4/2", test_connection_match_ip4_routes2);
	g_test_add_func ("/general/connection-match/routes/ip6", test_connection_match_ip6_routes);

	g_test_add_func ("/general/wildcard-match", test_wildcard_match);

	g_test_add_func ("/general/connection-sort/autoconnect-priority", test_connection_sort_autoconnect_priority);

	g_test_add_func ("/general/match-spec/device", test_match_spec_device);
	g_test_add_func ("/general/match-spec/config", test_match_spec_config);
	g_test_add_func ("/general/duplicate_decl_specifier", test_duplicate_decl_specifier);

	g_test_add_func ("/general/reverse_dns/ip4", test_reverse_dns_ip4);
	g_test_add_func ("/general/reverse_dns/ip6", test_reverse_dns_ip6);

	g_test_add_func ("/general/stable-id/parse", test_stable_id_parse);
	g_test_add_func ("/general/stable-id/generated-complete", test_stable_id_generated_complete);

	g_test_add_func ("/general/machine-id/read", test_machine_id_read);

	g_test_add_func ("/general/test_utils_file_is_in_path", test_utils_file_is_in_path);

	g_test_add_func ("/general/test_dns_create_resolv_conf", test_dns_create_resolv_conf);

	g_test_add_data_func ("/general/nm_sd_utils_generate_default_dhcp_client_id/lo",  GINT_TO_POINTER (TRUE),  test_nm_sd_utils_generate_default_dhcp_client_id);
	g_test_add_data_func ("/general/nm_sd_utils_generate_default_dhcp_client_id/rnd", GINT_TO_POINTER (FALSE), test_nm_sd_utils_generate_default_dhcp_client_id);

	return g_test_run ();
}