/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2015 Red Hat, Inc.
*/
#include "nm-default.h"
#include "n-acd/src/n-acd.h"
#include <linux/if_ether.h>
#include "devices/nm-acd-manager.h"
#include "platform/tests/test-common.h"
#define IFACE_VETH0 "nm-test-veth0"
#define IFACE_VETH1 "nm-test-veth1"
#define ADDR1 0x01010101
#define ADDR2 0x02020202
#define ADDR3 0x03030303
#define ADDR4 0x04040404
/*****************************************************************************/
static gboolean
_skip_acd_test_check(void)
{
NAcd * acd;
NAcdConfig * config;
const guint8 hwaddr[ETH_ALEN] = {0x01, 0x02, 0x03, 0x04, 0x05, 0x06};
int r;
static int skip = -1;
if (skip == -1) {
r = n_acd_config_new(&config);
g_assert(r == 0);
n_acd_config_set_ifindex(config, 1);
n_acd_config_set_transport(config, N_ACD_TRANSPORT_ETHERNET);
n_acd_config_set_mac(config, hwaddr, sizeof(hwaddr));
r = n_acd_new(&acd, config);
n_acd_config_free(config);
if (r == 0)
n_acd_unref(acd);
skip = (r != 0);
}
return skip;
}
#define _skip_acd_test() \
({ \
gboolean _skip = _skip_acd_test_check(); \
\
if (_skip) \
g_test_skip("Cannot create NAcd. Running under valgind?"); \
_skip; \
})
/*****************************************************************************/
typedef struct {
int ifindex0;
int ifindex1;
const guint8 *hwaddr0;
const guint8 *hwaddr1;
size_t hwaddr0_len;
size_t hwaddr1_len;
} test_fixture;
static void
fixture_setup(test_fixture *fixture, gconstpointer user_data)
{
/* create veth pair. */
fixture->ifindex0 =
nmtstp_link_veth_add(NM_PLATFORM_GET, -1, IFACE_VETH0, IFACE_VETH1)->ifindex;
fixture->ifindex1 =
nmtstp_link_get_typed(NM_PLATFORM_GET, -1, IFACE_VETH1, NM_LINK_TYPE_VETH)->ifindex;
g_assert(nm_platform_link_set_up(NM_PLATFORM_GET, fixture->ifindex0, NULL));
g_assert(nm_platform_link_set_up(NM_PLATFORM_GET, fixture->ifindex1, NULL));
fixture->hwaddr0 =
nm_platform_link_get_address(NM_PLATFORM_GET, fixture->ifindex0, &fixture->hwaddr0_len);
fixture->hwaddr1 =
nm_platform_link_get_address(NM_PLATFORM_GET, fixture->ifindex1, &fixture->hwaddr1_len);
}
typedef struct {
in_addr_t addresses[8];
in_addr_t peer_addresses[8];
gboolean expected_result[8];
} TestInfo;
static void
acd_manager_probe_terminated(NMAcdManager *acd_manager, gpointer user_data)
{
g_main_loop_quit(user_data);
}
static void
test_acd_common(test_fixture *fixture, TestInfo *info)
{
nm_auto_free_acdmgr NMAcdManager *manager = NULL;
nm_auto_unref_gmainloop GMainLoop *loop = NULL;
int i;
const guint WAIT_TIME_OPTIMISTIC = 50;
guint wait_time;
static const NMAcdCallbacks callbacks = {
.probe_terminated_callback = acd_manager_probe_terminated,
.user_data_destroy = (GDestroyNotify) g_main_loop_unref,
};
int r;
if (_skip_acd_test())
return;
/* first, try with a short waittime. We hope that this is long enough
* to successfully complete the test. Only if that's not the case, we
* assume the computer is currently busy (high load) and we retry with
* a longer timeout. */
wait_time = WAIT_TIME_OPTIMISTIC;
again:
nm_clear_pointer(&loop, g_main_loop_unref);
loop = g_main_loop_new(NULL, FALSE);
nm_clear_pointer(&manager, nm_acd_manager_free);
manager = nm_acd_manager_new(fixture->ifindex0,
fixture->hwaddr0,
fixture->hwaddr0_len,
&callbacks,
g_main_loop_ref(loop));
g_assert(manager != NULL);
for (i = 0; info->addresses[i]; i++)
g_assert(nm_acd_manager_add_address(manager, info->addresses[i]));
for (i = 0; info->peer_addresses[i]; i++) {
nmtstp_ip4_address_add(NULL,
FALSE,
fixture->ifindex1,
info->peer_addresses[i],
24,
0,
3600,
1800,
0,
NULL);
}
r = nm_acd_manager_start_probe(manager, wait_time);
g_assert_cmpint(r, ==, 0);
g_assert(nmtst_main_loop_run(loop, 2000));
for (i = 0; info->addresses[i]; i++) {
gboolean val;
char sbuf[NM_UTILS_INET_ADDRSTRLEN];
val = nm_acd_manager_check_address(manager, info->addresses[i]);
if (val == info->expected_result[i])
continue;
if (wait_time == WAIT_TIME_OPTIMISTIC) {
/* probably we just had a glitch and the system took longer than
* expected. Re-verify with a large timeout this time. */
wait_time = 1000;
goto again;
}
g_error("expected check for address #%d (%s) to %s, but it didn't",
i,
_nm_utils_inet4_ntop(info->addresses[i], sbuf),
info->expected_result[i] ? "detect no duplicated" : "detect a duplicate");
}
}
static void
test_acd_probe_1(test_fixture *fixture, gconstpointer user_data)
{
TestInfo info = {.addresses = {ADDR1, ADDR2, ADDR3},
.peer_addresses = {ADDR4},
.expected_result = {TRUE, TRUE, TRUE}};
test_acd_common(fixture, &info);
}
static void
test_acd_probe_2(test_fixture *fixture, gconstpointer user_data)
{
TestInfo info = {.addresses = {ADDR1, ADDR2, ADDR3, ADDR4},
.peer_addresses = {ADDR3, ADDR2},
.expected_result = {TRUE, FALSE, FALSE, TRUE}};
test_acd_common(fixture, &info);
}
static void
test_acd_announce(test_fixture *fixture, gconstpointer user_data)
{
nm_auto_free_acdmgr NMAcdManager *manager = NULL;
nm_auto_unref_gmainloop GMainLoop *loop = NULL;
int r;
if (_skip_acd_test())
return;
manager =
nm_acd_manager_new(fixture->ifindex0, fixture->hwaddr0, fixture->hwaddr0_len, NULL, NULL);
g_assert(manager != NULL);
g_assert(nm_acd_manager_add_address(manager, ADDR1));
g_assert(nm_acd_manager_add_address(manager, ADDR2));
loop = g_main_loop_new(NULL, FALSE);
r = nm_acd_manager_announce_addresses(manager);
g_assert_cmpint(r, ==, 0);
g_assert(!nmtst_main_loop_run(loop, 200));
}
static void
fixture_teardown(test_fixture *fixture, gconstpointer user_data)
{
nm_platform_link_delete(NM_PLATFORM_GET, fixture->ifindex0);
nm_platform_link_delete(NM_PLATFORM_GET, fixture->ifindex1);
}
NMTstpSetupFunc const _nmtstp_setup_platform_func = nm_linux_platform_setup;
void
_nmtstp_init_tests(int *argc, char ***argv)
{
nmtst_init_with_logging(argc, argv, NULL, "ALL");
}
void
_nmtstp_setup_tests(void)
{
g_test_add("/acd/probe/1",
test_fixture,
NULL,
fixture_setup,
test_acd_probe_1,
fixture_teardown);
g_test_add("/acd/probe/2",
test_fixture,
NULL,
fixture_setup,
test_acd_probe_2,
fixture_teardown);
g_test_add("/acd/announce",
test_fixture,
NULL,
fixture_setup,
test_acd_announce,
fixture_teardown);
}