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/* -*- 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) 2015 Red Hat, Inc.
 *
 */

#include "nm-default.h"

#include <string.h>
#include <errno.h>
#include <arpa/inet.h>

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

static void
test_stable_privacy (void)
{
	struct in6_addr addr1;

	inet_pton (AF_INET6, "1234::", &addr1);
	nm_utils_ipv6_addr_set_stable_privacy_impl (NM_UTILS_STABLE_TYPE_UUID, &addr1, "eth666", "6b138152-9f3e-4b97-aaf7-e6e553f2a24e", 0, (guint8 *) "key", 3, NULL);
	nmtst_assert_ip6_address (&addr1, "1234::4ceb:14cd:3d54:793f");

	/* We get an address without the UUID. */
	inet_pton (AF_INET6, "1::", &addr1);
	nm_utils_ipv6_addr_set_stable_privacy_impl (NM_UTILS_STABLE_TYPE_UUID, &addr1, "eth666", "", 384, (guint8 *) "key", 3, NULL);
	nmtst_assert_ip6_address (&addr1, "1::11aa:2530:9144:dafa");

	/* We get a different address in a different network. */
	inet_pton (AF_INET6, "2::", &addr1);
	nm_utils_ipv6_addr_set_stable_privacy_impl (NM_UTILS_STABLE_TYPE_UUID, &addr1, "eth666", "", 384, (guint8 *) "key", 3, NULL);
	nmtst_assert_ip6_address (&addr1, "2::338e:8d:c11:8726");

	inet_pton (AF_INET6, "1234::", &addr1);
	nm_utils_ipv6_addr_set_stable_privacy_impl (NM_UTILS_STABLE_TYPE_STABLE_ID, &addr1, "eth666", "6b138152-9f3e-4b97-aaf7-e6e553f2a24e", 0, (guint8 *) "key", 3, NULL);
	nmtst_assert_ip6_address (&addr1, "1234::ad4c:ae44:3d30:af1e");

	inet_pton (AF_INET6, "1234::", &addr1);
	nm_utils_ipv6_addr_set_stable_privacy_impl (NM_UTILS_STABLE_TYPE_STABLE_ID, &addr1, "eth666", "stable-id-1", 0, (guint8 *) "key", 3, NULL);
	nmtst_assert_ip6_address (&addr1, "1234::4944:67b0:7a6c:1cf");
}

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

static void
_do_test_hw_addr (NMUtilsStableType stable_type,
                  const char *stable_id,
                  const guint8 *secret_key,
                  gsize key_len,
                  const char *ifname,
                  const char *current_mac_address,
                  const char *generate_mac_address_mask,
                  const char *const *expected)
{
	gs_free char *generated = NULL;
	const char *const *e;
	gboolean found = FALSE;

	for (e = expected; *e; e++) {
		g_assert (*e);
		g_assert (nm_utils_hwaddr_valid (*e, ETH_ALEN));
	}

	generated = nm_utils_hw_addr_gen_stable_eth_impl (stable_type,
	                                                  stable_id,
	                                                  secret_key,
	                                                  key_len,
	                                                  ifname,
	                                                  current_mac_address,
	                                                  generate_mac_address_mask);

	g_assert (generated);
	g_assert (nm_utils_hwaddr_valid (generated, ETH_ALEN));
	for (e = expected; *e; e++) {
		if (!nm_utils_hwaddr_matches (generated, -1, *e, -1))
			continue;
		g_assert (!found);
		found = TRUE;
		g_assert_cmpstr (generated, ==, *e);
	}
	g_assert (found);
}
#define do_test_hw_addr(stable_type, stable_id, secret_key, ifname, current_mac_address, generate_mac_address_mask, ...) \
	_do_test_hw_addr ((stable_type), \
	                  (stable_id), \
	                  (const guint8 *) ""secret_key"", \
	                  NM_STRLEN (secret_key), (ifname), \
	                  ""current_mac_address"", \
	                  generate_mac_address_mask, \
	                  NM_MAKE_STRV (__VA_ARGS__))

static void
test_hw_addr_gen_stable_eth (void)
{
	do_test_hw_addr (NM_UTILS_STABLE_TYPE_UUID,      "stable-1", "key1", "eth0", "01:23:45:67:89:ab", NULL, "06:0D:CD:0C:9E:2C");
	do_test_hw_addr (NM_UTILS_STABLE_TYPE_STABLE_ID, "stable-1", "key1", "eth0", "01:23:45:67:89:ab", NULL, "C6:AE:A9:9A:76:09");

	do_test_hw_addr (NM_UTILS_STABLE_TYPE_UUID,      "stable-1", "key1", "eth0", "01:23:45:67:89:ab", "FF:FF:FF:00:00:00", "00:23:45:0C:9E:2C");
	do_test_hw_addr (NM_UTILS_STABLE_TYPE_UUID,      "stable-1", "key1", "eth0", "03:23:45:67:89:ab", "FF:FF:FF:00:00:00", "02:23:45:0C:9E:2C");

	do_test_hw_addr (NM_UTILS_STABLE_TYPE_UUID,      "stable-1", "key1", "eth0", "01:23:45:67:89:ab", "00:00:00:00:00:00", "06:0D:CD:0C:9E:2C");
	do_test_hw_addr (NM_UTILS_STABLE_TYPE_UUID,      "stable-1", "key1", "eth0", "01:23:45:67:89:ab", "02:00:00:00:00:00", "04:0D:CD:0C:9E:2C");
	do_test_hw_addr (NM_UTILS_STABLE_TYPE_UUID,      "stable-1", "key1", "eth0", "01:23:45:67:89:ab", "02:00:00:00:00:00", "04:0D:CD:0C:9E:2C");

	do_test_hw_addr (NM_UTILS_STABLE_TYPE_UUID,      "stable-1", "key1", "eth0", "01:23:45:67:89:ab", "02:00:00:00:00:00 00:00:00:00:00:00", "04:0D:CD:0C:9E:2C");
	do_test_hw_addr (NM_UTILS_STABLE_TYPE_UUID,      "stable-1", "key1", "eth0", "01:23:45:67:89:ab", "02:00:00:00:00:00 02:00:00:00:00:00", "06:0D:CD:0C:9E:2C");

	do_test_hw_addr (NM_UTILS_STABLE_TYPE_UUID,      "stable-1", "key1", "eth0", "01:23:45:67:89:ab", "00:00:00:00:00:00 E9:60:CE:F5:ED:2F", "06:0D:CD:0C:9E:2C");

	do_test_hw_addr (NM_UTILS_STABLE_TYPE_UUID,      "stable-1", "key1", "eth0", "01:23:45:67:89:ab", "02:00:00:00:00:00 00:00:00:00:00:00 02:00:00:00:00:00", "06:0D:CD:0C:9E:2C", "04:0D:CD:0C:9E:2C");
}

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

NMTST_DEFINE ();

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

	g_test_add_func ("/utils/stable_privacy", test_stable_privacy);
	g_test_add_func ("/utils/hw_addr_gen_stable_eth", test_hw_addr_gen_stable_eth);

	return g_test_run ();
}