+++ /dev/null
-/*
- test_optimal_pmtu.c -- Execution of specific meshlink black box test cases
- Copyright (C) 2019 Guus Sliepen <guus@meshlink.io>
-
- 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 of the License, 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.
-*/
-
-#ifdef NDEBUG
-#undef NDEBUG
-#endif
-
-#include <stdlib.h>
-#include <stdarg.h>
-#include <setjmp.h>
-#include <cmocka.h>
-#include <assert.h>
-#include <pthread.h>
-#include "../common/containers.h"
-#include "../common/test_step.h"
-#include "../common/common_handlers.h"
-#include "../common/network_namespace_framework.h"
-#include "../../utils.h"
-#include "../test_case_optimal_pmtu_01/test_case_optimal_pmtu.h"
-#include "test_optimal_pmtu.h"
-
-static void test_case_optimal_pmtu_01(void **state);
-static bool test_steps_optimal_pmtu_01(void);
-static void test_case_optimal_pmtu_02(void **state);
-static bool test_steps_optimal_pmtu_02(void);
-static void test_case_optimal_pmtu_03(void **state);
-static bool test_steps_optimal_pmtu_03(void);
-static void test_case_optimal_pmtu_04(void **state);
-static bool test_steps_optimal_pmtu_04(void);
-static void test_case_optimal_pmtu_05(void **state);
-static bool test_steps_optimal_pmtu_05(void);
-static void test_case_optimal_pmtu_06(void **state);
-static bool test_steps_optimal_pmtu_06(void);
-static void test_case_optimal_pmtu_07(void **state);
-static bool test_steps_optimal_pmtu_07(void);
-
-extern void *node_sim_relay_01(void *arg);
-extern void *node_sim_peer_01(void *arg);
-extern void *node_sim_nut_01(void *arg);
-extern pmtu_attr_t node_pmtu[2];
-
-typedef bool (*test_step_func_t)(void);
-static int setup_test(void **state);
-bool test_pmtu_relay_running = true;
-bool test_pmtu_peer_running = true;
-bool test_pmtu_nut_running = true;
-bool ping_channel_enable_07 = false;
-
-struct sync_flag test_pmtu_nut_closed = {.mutex = PTHREAD_MUTEX_INITIALIZER, .cond = PTHREAD_COND_INITIALIZER};
-static netns_state_t *test_pmtu_state;
-
-static int setup_test(void **state) {
- (void)state;
-
- netns_create_topology(test_pmtu_state);
- fprintf(stderr, "\nCreated topology\n");
-
- test_pmtu_relay_running = true;
- test_pmtu_peer_running = true;
- test_pmtu_nut_running = true;
- ping_channel_enable_07 = false;
- memset(node_pmtu, 0, sizeof(node_pmtu));
- set_sync_flag(&test_pmtu_nut_closed, false);
- assert(meshlink_destroy("nut"));
- assert(meshlink_destroy("peer"));
- assert(meshlink_destroy("relay"));
-
- return EXIT_SUCCESS;
-}
-
-static int teardown_test(void **state) {
- (void)state;
-
- assert(meshlink_destroy("nut"));
- assert(meshlink_destroy("peer"));
- assert(meshlink_destroy("relay"));
- netns_destroy_topology(test_pmtu_state);
-
- return EXIT_SUCCESS;
-}
-
-static void execute_test(test_step_func_t step_func, void **state) {
- (void)state;
-
-
- fprintf(stderr, "\n\x1b[32mRunning Test\x1b[0m\n");
- bool test_result = step_func();
-
- if(!test_result) {
- fail();
- }
-}
-
-static void *gen_inv(void *arg) {
- mesh_invite_arg_t *mesh_invite_arg = (mesh_invite_arg_t *)arg;
- meshlink_handle_t *mesh;
- mesh = meshlink_open(mesh_invite_arg->mesh_arg->node_name, mesh_invite_arg->mesh_arg->confbase, mesh_invite_arg->mesh_arg->app_name, mesh_invite_arg->mesh_arg->dev_class);
- assert(mesh);
-
- char *invitation = meshlink_invite(mesh, NULL, mesh_invite_arg->invitee_name);
- assert(invitation);
- mesh_invite_arg->invite_str = invitation;
- meshlink_close(mesh);
-
- return NULL;
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 1 -
- Validating NUT MTU parameters without blocking ICMP under designed
- network topology */
-static void test_case_optimal_pmtu_01(void **state) {
- execute_test(test_steps_optimal_pmtu_01, state);
- return;
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 1 - Success case
-
- Test Steps:
- 1. Create NAT setup and run each node instances in discrete namespace.
- 2. Open a channel from NUT to peer and hence triggering Peer to peer connection
- 3. Send the analyzed MTU parameters mesh event information to test driver
- Expected Result:
- NUT and Peer should be able to hole puch the NATs and MTU parameters should be in
- the expected range
-*/
-static bool test_steps_optimal_pmtu_01(void) {
- mesh_arg_t relay_arg = {.node_name = "relay", .confbase = "relay", .app_name = "relay", .dev_class = 0 };
- mesh_arg_t peer_arg = {.node_name = "peer", .confbase = "peer", .app_name = "peer", .dev_class = 1 };
- mesh_arg_t nut_arg = {.node_name = "nut", .confbase = "nut", .app_name = "nut", .dev_class = 1 };
-
-
- mesh_invite_arg_t relay_nut_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "nut" };
- netns_thread_t netns_relay_nut_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_nut_invite_arg};
- run_node_in_namespace_thread(&netns_relay_nut_invite);
- sleep(1);
- assert(relay_nut_invite_arg.invite_str);
- nut_arg.join_invitation = relay_nut_invite_arg.invite_str;
-
- mesh_invite_arg_t relay_peer_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "peer" };
- netns_thread_t netns_relay_peer_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_peer_invite_arg};
- run_node_in_namespace_thread(&netns_relay_peer_invite);
- sleep(1);
- assert(relay_peer_invite_arg.invite_str);
- peer_arg.join_invitation = relay_peer_invite_arg.invite_str;
-
- netns_thread_t netns_relay_handle = {.namespace_name = "relay", .netns_thread = node_sim_pmtu_relay_01, .arg = &relay_arg};
- run_node_in_namespace_thread(&netns_relay_handle);
-
- netns_thread_t netns_peer_handle = {.namespace_name = "peer", .netns_thread = node_sim_pmtu_peer_01, .arg = &peer_arg};
- run_node_in_namespace_thread(&netns_peer_handle);
-
- netns_thread_t netns_nut_handle = {.namespace_name = "nut", .netns_thread = node_sim_pmtu_nut_01, .arg = &nut_arg};
- run_node_in_namespace_thread(&netns_nut_handle);
-
- assert(wait_sync_flag(&test_pmtu_nut_closed, 300));
- test_pmtu_relay_running = false;
- test_pmtu_peer_running = false;
-
- sleep(1);
- assert_in_range(node_pmtu[NODE_PMTU_PEER].mtu_size, 1450, 1501);
- assert_in_range(node_pmtu[NODE_PMTU_PEER].mtu_discovery.probes, 120, 160);
- assert_in_range(node_pmtu[NODE_PMTU_RELAY].mtu_size, 1450, 1501);
- assert_in_range(node_pmtu[NODE_PMTU_RELAY].mtu_discovery.probes, 120, 160);
-
- return true;
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 2 -
- Validating NUT MTU parameters blocking ICMP under designed
- network topology */
-static void test_case_optimal_pmtu_02(void **state) {
- execute_test(test_steps_optimal_pmtu_02, state);
- return;
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 2 -
- Test Steps:
- 1. Create NAT setup and run each node instances in discrete namespace,
- 2. Block ICMP protocol at NUT's NAT
- 3. Open a channel from NUT to peer and hence triggering Peer to peer connection
- 4. Send the analyzed MTU parameters mesh event information to test driver
- Expected Result:
- NUT and Peer should be able to hole puch the NATs and MTU parameters should be in
- the expected range
-*/
-static bool test_steps_optimal_pmtu_02(void) {
- mesh_arg_t relay_arg = {.node_name = "relay", .confbase = "relay", .app_name = "relay", .dev_class = 0 };
- mesh_arg_t peer_arg = {.node_name = "peer", .confbase = "peer", .app_name = "peer", .dev_class = 1 };
- mesh_arg_t nut_arg = {.node_name = "nut", .confbase = "nut", .app_name = "nut", .dev_class = 1 };
-
- assert(system("ip netns exec peer_nat iptables -A FORWARD -p icmp -j DROP") == 0);
- assert(system("ip netns exec nut_nat iptables -A FORWARD -p icmp -j DROP") == 0);
-
- mesh_invite_arg_t relay_nut_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "nut" };
- netns_thread_t netns_relay_nut_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_nut_invite_arg};
- run_node_in_namespace_thread(&netns_relay_nut_invite);
- sleep(1);
- assert(relay_nut_invite_arg.invite_str);
- nut_arg.join_invitation = relay_nut_invite_arg.invite_str;
-
- mesh_invite_arg_t relay_peer_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "peer" };
- netns_thread_t netns_relay_peer_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_peer_invite_arg};
- run_node_in_namespace_thread(&netns_relay_peer_invite);
- sleep(1);
- assert(relay_peer_invite_arg.invite_str);
- peer_arg.join_invitation = relay_peer_invite_arg.invite_str;
-
- netns_thread_t netns_relay_handle = {.namespace_name = "relay", .netns_thread = node_sim_pmtu_relay_01, .arg = &relay_arg};
- run_node_in_namespace_thread(&netns_relay_handle);
-
- netns_thread_t netns_peer_handle = {.namespace_name = "peer", .netns_thread = node_sim_pmtu_peer_01, .arg = &peer_arg};
- run_node_in_namespace_thread(&netns_peer_handle);
-
- netns_thread_t netns_nut_handle = {.namespace_name = "nut", .netns_thread = node_sim_pmtu_nut_01, .arg = &nut_arg};
- run_node_in_namespace_thread(&netns_nut_handle);
-
- assert(wait_sync_flag(&test_pmtu_nut_closed, 300));
- test_pmtu_relay_running = false;
- test_pmtu_peer_running = false;
-
- sleep(1);
- assert_in_range(node_pmtu[NODE_PMTU_PEER].mtu_size, 1450, 1501);
- assert_in_range(node_pmtu[NODE_PMTU_PEER].mtu_discovery.probes, 120, 160);
- assert_in_range(node_pmtu[NODE_PMTU_RELAY].mtu_size, 1450, 1501);
- assert_in_range(node_pmtu[NODE_PMTU_RELAY].mtu_discovery.probes, 120, 160);
-
- return true;
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 3 -
- Validating NUT MTU parameters with MTU size of NAT = 1250 under designed
- network topology */
-static void test_case_optimal_pmtu_03(void **state) {
- execute_test(test_steps_optimal_pmtu_03, state);
- return;
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 3 -
- Test Steps:
- 1. Create NAT setup and run each node instances in discrete namespace,
- 2. Change the MTU size of NUT's NAT to 1250
- 3. Open a channel from NUT to peer and hence triggering Peer to peer connection
- 4. Send the analyzed MTU parameters mesh event information to test driver
- Expected Result:
- NUT and Peer should be able to hole puch the NATs and MTU parameters should be in
- the expected range
-*/
-static bool test_steps_optimal_pmtu_03(void) {
- mesh_arg_t relay_arg = {.node_name = "relay", .confbase = "relay", .app_name = "relay", .dev_class = 0 };
- mesh_arg_t peer_arg = {.node_name = "peer", .confbase = "peer", .app_name = "peer", .dev_class = 1 };
- mesh_arg_t nut_arg = {.node_name = "nut", .confbase = "nut", .app_name = "nut", .dev_class = 1 };
-
- assert(system("ip netns exec nut_nat ifconfig eth_nut mtu 1250") == 0);
-
- mesh_invite_arg_t relay_nut_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "nut" };
- netns_thread_t netns_relay_nut_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_nut_invite_arg};
- run_node_in_namespace_thread(&netns_relay_nut_invite);
- sleep(1);
- assert(relay_nut_invite_arg.invite_str);
- nut_arg.join_invitation = relay_nut_invite_arg.invite_str;
-
- mesh_invite_arg_t relay_peer_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "peer" };
- netns_thread_t netns_relay_peer_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_peer_invite_arg};
- run_node_in_namespace_thread(&netns_relay_peer_invite);
- sleep(1);
- assert(relay_peer_invite_arg.invite_str);
- peer_arg.join_invitation = relay_peer_invite_arg.invite_str;
-
- netns_thread_t netns_relay_handle = {.namespace_name = "relay", .netns_thread = node_sim_pmtu_relay_01, .arg = &relay_arg};
- run_node_in_namespace_thread(&netns_relay_handle);
-
- netns_thread_t netns_peer_handle = {.namespace_name = "peer", .netns_thread = node_sim_pmtu_peer_01, .arg = &peer_arg};
- run_node_in_namespace_thread(&netns_peer_handle);
-
- netns_thread_t netns_nut_handle = {.namespace_name = "nut", .netns_thread = node_sim_pmtu_nut_01, .arg = &nut_arg};
- run_node_in_namespace_thread(&netns_nut_handle);
-
- assert(wait_sync_flag(&test_pmtu_nut_closed, 300));
- test_pmtu_relay_running = false;
- test_pmtu_peer_running = false;
-
- sleep(1);
- assert_in_range(node_pmtu[NODE_PMTU_PEER].mtu_size, 1200, 1250);
- assert_in_range(node_pmtu[NODE_PMTU_RELAY].mtu_size, 1200, 1250);
-
- return true;
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 4 -
- Validating NUT MTU parameters with MTU size of NAT = 1000 under designed
- network topology */
-static void test_case_optimal_pmtu_04(void **state) {
- execute_test(test_steps_optimal_pmtu_04, state);
- return;
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 4 -
- Test Steps:
- 1. Create NAT setup and run each node instances in discrete namespace,
- 2. Change the MTU size of NUT's NAT to 1000
- 3. Open a channel from NUT to peer and hence triggering Peer to peer connection
- 4. Send the analyzed MTU parameters mesh event information to test driver
- Expected Result:
- NUT and Peer should be able to hole puch the NATs and MTU parameters should be in
- the expected range
-*/
-static bool test_steps_optimal_pmtu_04(void) {
- mesh_arg_t relay_arg = {.node_name = "relay", .confbase = "relay", .app_name = "relay", .dev_class = 0 };
- mesh_arg_t peer_arg = {.node_name = "peer", .confbase = "peer", .app_name = "peer", .dev_class = 1 };
- mesh_arg_t nut_arg = {.node_name = "nut", .confbase = "nut", .app_name = "nut", .dev_class = 1 };
-
- assert(system("ip netns exec nut_nat ifconfig eth_nut mtu 1000") == 0);
-
- mesh_invite_arg_t relay_nut_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "nut" };
- netns_thread_t netns_relay_nut_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_nut_invite_arg};
- run_node_in_namespace_thread(&netns_relay_nut_invite);
- sleep(1);
- assert(relay_nut_invite_arg.invite_str);
- nut_arg.join_invitation = relay_nut_invite_arg.invite_str;
-
- mesh_invite_arg_t relay_peer_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "peer" };
- netns_thread_t netns_relay_peer_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_peer_invite_arg};
- run_node_in_namespace_thread(&netns_relay_peer_invite);
- sleep(1);
- assert(relay_peer_invite_arg.invite_str);
- peer_arg.join_invitation = relay_peer_invite_arg.invite_str;
-
- netns_thread_t netns_relay_handle = {.namespace_name = "relay", .netns_thread = node_sim_pmtu_relay_01, .arg = &relay_arg};
- run_node_in_namespace_thread(&netns_relay_handle);
-
- netns_thread_t netns_peer_handle = {.namespace_name = "peer", .netns_thread = node_sim_pmtu_peer_01, .arg = &peer_arg};
- run_node_in_namespace_thread(&netns_peer_handle);
-
- netns_thread_t netns_nut_handle = {.namespace_name = "nut", .netns_thread = node_sim_pmtu_nut_01, .arg = &nut_arg};
- run_node_in_namespace_thread(&netns_nut_handle);
-
- assert(wait_sync_flag(&test_pmtu_nut_closed, 300));
- test_pmtu_relay_running = false;
- test_pmtu_peer_running = false;
-
- sleep(1);
- assert_in_range(node_pmtu[NODE_PMTU_PEER].mtu_size, 925, 1000);
- assert_in_range(node_pmtu[NODE_PMTU_RELAY].mtu_size, 925, 1000);
-
- return true;
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 5 -
- Validating NUT MTU parameters with MTU size of NAT = 800 under designed
- network topology */
-static void test_case_optimal_pmtu_05(void **state) {
- execute_test(test_steps_optimal_pmtu_05, state);
- return;
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 5 -
- Test Steps:
- 1. Create NAT setup and run each node instances in discrete namespace,
- 2. Change the MTU size of NUT's NAT to 800
- 3. Open a channel from NUT to peer and hence triggering Peer to peer connection
- 4. Send the analyzed MTU parameters mesh event information to test driver
- Expected Result:
- NUT and Peer should be able to hole puch the NATs and MTU parameters should be in
- the expected range
-*/
-static bool test_steps_optimal_pmtu_05(void) {
- mesh_arg_t relay_arg = {.node_name = "relay", .confbase = "relay", .app_name = "relay", .dev_class = 0 };
- mesh_arg_t peer_arg = {.node_name = "peer", .confbase = "peer", .app_name = "peer", .dev_class = 1 };
- mesh_arg_t nut_arg = {.node_name = "nut", .confbase = "nut", .app_name = "nut", .dev_class = 1 };
-
- assert(system("ip netns exec nut_nat ifconfig eth_nut mtu 750") == 0);
-
- mesh_invite_arg_t relay_nut_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "nut" };
- netns_thread_t netns_relay_nut_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_nut_invite_arg};
- run_node_in_namespace_thread(&netns_relay_nut_invite);
- sleep(1);
- assert(relay_nut_invite_arg.invite_str);
- nut_arg.join_invitation = relay_nut_invite_arg.invite_str;
-
- mesh_invite_arg_t relay_peer_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "peer" };
- netns_thread_t netns_relay_peer_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_peer_invite_arg};
- run_node_in_namespace_thread(&netns_relay_peer_invite);
- sleep(1);
- assert(relay_peer_invite_arg.invite_str);
- peer_arg.join_invitation = relay_peer_invite_arg.invite_str;
-
- netns_thread_t netns_relay_handle = {.namespace_name = "relay", .netns_thread = node_sim_pmtu_relay_01, .arg = &relay_arg};
- run_node_in_namespace_thread(&netns_relay_handle);
-
- netns_thread_t netns_peer_handle = {.namespace_name = "peer", .netns_thread = node_sim_pmtu_peer_01, .arg = &peer_arg};
- run_node_in_namespace_thread(&netns_peer_handle);
-
- netns_thread_t netns_nut_handle = {.namespace_name = "nut", .netns_thread = node_sim_pmtu_nut_01, .arg = &nut_arg};
- run_node_in_namespace_thread(&netns_nut_handle);
-
- assert(wait_sync_flag(&test_pmtu_nut_closed, 300));
- test_pmtu_relay_running = false;
- test_pmtu_peer_running = false;
-
- sleep(1);
- assert_in_range(node_pmtu[NODE_PMTU_PEER].mtu_size, 700, 750);
- assert_in_range(node_pmtu[NODE_PMTU_RELAY].mtu_size, 700, 750);
-
- return true;
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 6 -
- Flushing the tracked connections via NUT NAT for every 60 seconds */
-static void test_case_optimal_pmtu_06(void **state) {
- execute_test(test_steps_optimal_pmtu_06, state);
- return;
-}
-
-static bool run_conntrack;
-static pthread_t pmtu_test_case_conntrack_thread;
-static void *conntrack_flush(void *arg) {
- (void)arg;
-
- // flushes mappings for every 60 seconds
-
- while(run_conntrack) {
- sleep(100);
- assert(system("ip netns exec nut_nat conntrack -F") == 0);
- assert(system("ip netns exec peer_nat conntrack -F") == 0);
- }
-
- pthread_exit(NULL);
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 6 -
- Test Steps:
- 1. Create NAT setup and Launch conntrack thread which flushes the tracked connections for every 90 seconds
- 2. Run each node instances in discrete namespace,
- 3. Open a channel from NUT to peer and hence triggering Peer to peer connection
- 4. Send the analyzed MTU parameters mesh event information to test driver
- Expected Result:
- NUT and Peer should be able to hole puch the NATs and MTU parameters should be in
- the expected range
-*/
-static bool test_steps_optimal_pmtu_06(void) {
- mesh_arg_t relay_arg = {.node_name = "relay", .confbase = "relay", .app_name = "relay", .dev_class = 0 };
- mesh_arg_t peer_arg = {.node_name = "peer", .confbase = "peer", .app_name = "peer", .dev_class = 1 };
- mesh_arg_t nut_arg = {.node_name = "nut", .confbase = "nut", .app_name = "nut", .dev_class = 1 };
-
- run_conntrack = true;
- assert(!pthread_create(&pmtu_test_case_conntrack_thread, NULL, conntrack_flush, NULL));
-
- mesh_invite_arg_t relay_nut_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "nut" };
- netns_thread_t netns_relay_nut_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_nut_invite_arg};
- run_node_in_namespace_thread(&netns_relay_nut_invite);
- sleep(1);
- assert(relay_nut_invite_arg.invite_str);
- nut_arg.join_invitation = relay_nut_invite_arg.invite_str;
-
- mesh_invite_arg_t relay_peer_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "peer" };
- netns_thread_t netns_relay_peer_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_peer_invite_arg};
- run_node_in_namespace_thread(&netns_relay_peer_invite);
- sleep(1);
- assert(relay_peer_invite_arg.invite_str);
- peer_arg.join_invitation = relay_peer_invite_arg.invite_str;
-
- netns_thread_t netns_relay_handle = {.namespace_name = "relay", .netns_thread = node_sim_pmtu_relay_01, .arg = &relay_arg};
- run_node_in_namespace_thread(&netns_relay_handle);
-
- netns_thread_t netns_peer_handle = {.namespace_name = "peer", .netns_thread = node_sim_pmtu_peer_01, .arg = &peer_arg};
- run_node_in_namespace_thread(&netns_peer_handle);
-
- netns_thread_t netns_nut_handle = {.namespace_name = "nut", .netns_thread = node_sim_pmtu_nut_01, .arg = &nut_arg};
- run_node_in_namespace_thread(&netns_nut_handle);
-
- assert(wait_sync_flag(&test_pmtu_nut_closed, 300));
- test_pmtu_relay_running = false;
- test_pmtu_peer_running = false;
- run_conntrack = false;
- pthread_join(pmtu_test_case_conntrack_thread, NULL);
-
- sleep(1);
-
- assert_in_range(node_pmtu[NODE_PMTU_PEER].mtu_size, 1440, 1500);
- assert_in_range(node_pmtu[NODE_PMTU_RELAY].mtu_size, 1440, 1500);
- assert_in_range(node_pmtu[NODE_PMTU_PEER].mtu_ping.probes, 38, 42);
- assert_in_range(node_pmtu[NODE_PMTU_RELAY].mtu_ping.probes, 38, 42);
-
- return true;
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 7 -
- NUT sending data to peer node via channel for every 30 seconds
- */
-static void test_case_optimal_pmtu_07(void **state) {
- execute_test(test_steps_optimal_pmtu_07, state);
- return;
-}
-
-/* Test Steps for optimal PMTU discovery Test Case # 7 -
- Test Steps:
- 1. Create NAT setup and run each node instances in discrete namespace.
- 2. Open a channel from NUT to peer and hence triggering Peer to peer connection
- 3. Send data periodically via channel from NUT to peer node.
- 4. Send the analyzed MTU parameters mesh event information to test driver
- Expected Result:
- NUT and Peer should be able to hole puch the NATs and MTU parameters should be in
- the expected range
-*/
-static bool test_steps_optimal_pmtu_07(void) {
- mesh_arg_t relay_arg = {.node_name = "relay", .confbase = "relay", .app_name = "relay", .dev_class = 0 };
- mesh_arg_t peer_arg = {.node_name = "peer", .confbase = "peer", .app_name = "peer", .dev_class = 1 };
- mesh_arg_t nut_arg = {.node_name = "nut", .confbase = "nut", .app_name = "nut", .dev_class = 1 };
-
- ping_channel_enable_07 = true;
-
- mesh_invite_arg_t relay_nut_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "nut" };
- netns_thread_t netns_relay_nut_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_nut_invite_arg};
- run_node_in_namespace_thread(&netns_relay_nut_invite);
- sleep(1);
- assert(relay_nut_invite_arg.invite_str);
- nut_arg.join_invitation = relay_nut_invite_arg.invite_str;
-
- mesh_invite_arg_t relay_peer_invite_arg = {.mesh_arg = &relay_arg, .invitee_name = "peer" };
- netns_thread_t netns_relay_peer_invite = {.namespace_name = "relay", .netns_thread = gen_inv, .arg = &relay_peer_invite_arg};
- run_node_in_namespace_thread(&netns_relay_peer_invite);
- sleep(1);
- assert(relay_peer_invite_arg.invite_str);
- peer_arg.join_invitation = relay_peer_invite_arg.invite_str;
-
- netns_thread_t netns_relay_handle = {.namespace_name = "relay", .netns_thread = node_sim_pmtu_relay_01, .arg = &relay_arg};
- run_node_in_namespace_thread(&netns_relay_handle);
-
- netns_thread_t netns_peer_handle = {.namespace_name = "peer", .netns_thread = node_sim_pmtu_peer_01, .arg = &peer_arg};
- run_node_in_namespace_thread(&netns_peer_handle);
-
- netns_thread_t netns_nut_handle = {.namespace_name = "nut", .netns_thread = node_sim_pmtu_nut_01, .arg = &nut_arg};
- run_node_in_namespace_thread(&netns_nut_handle);
-
- assert(wait_sync_flag(&test_pmtu_nut_closed, 300));
- test_pmtu_relay_running = false;
- test_pmtu_peer_running = false;
-
- sleep(1);
- assert_in_range(node_pmtu[NODE_PMTU_PEER].mtu_size, 1450, 1501);
- assert_in_range(node_pmtu[NODE_PMTU_PEER].mtu_discovery.probes, 120, 160);
- assert_in_range(node_pmtu[NODE_PMTU_RELAY].mtu_size, 1450, 1501);
- assert_in_range(node_pmtu[NODE_PMTU_RELAY].mtu_discovery.probes, 120, 160);
-
- return true;
-}
-
-// Optimal PMTU test case driver
-
-int test_optimal_pmtu(void) {
- interface_t nut_ifs[] = { { .if_peer = "nut_nat", .fetch_ip_netns_name = "nut_nat" } };
- namespace_t nut = {
- .name = "nut",
- .type = HOST,
- .interfaces = nut_ifs,
- .interfaces_no = 1,
- };
-
- interface_t peer_ifs[] = { { .if_peer = "peer_nat", .fetch_ip_netns_name = "peer_nat" } };
- namespace_t peer = {
- .name = "peer",
- .type = HOST,
- .interfaces = peer_ifs,
- .interfaces_no = 1,
- };
-
- interface_t relay_ifs[] = { { .if_peer = "wan_bridge" } };
- namespace_t relay = {
- .name = "relay",
- .type = HOST,
- .interfaces = relay_ifs,
- .interfaces_no = 1,
- };
-
- netns_fullcone_handle_t nut_nat_fullcone = { .snat_to_source = "wan_bridge", .dnat_to_destination = "nut" };
- netns_fullcone_handle_t *nut_nat_args[] = { &nut_nat_fullcone, NULL };
- interface_t nut_nat_ifs[] = { { .if_peer = "nut", .fetch_ip_netns_name = "nut_nat" }, { .if_peer = "wan_bridge" } };
- namespace_t nut_nat = {
- .name = "nut_nat",
- .type = FULL_CONE,
- .nat_arg = nut_nat_args,
- .static_config_net_addr = "192.168.1.0/24",
- .interfaces = nut_nat_ifs,
- .interfaces_no = 2,
- };
-
- netns_fullcone_handle_t peer_nat_fullcone = { .snat_to_source = "wan_bridge", .dnat_to_destination = "peer" };
- netns_fullcone_handle_t *peer_nat_args[] = { &peer_nat_fullcone, NULL };
- interface_t peer_nat_ifs[] = { { .if_peer = "peer", .fetch_ip_netns_name = "peer_nat" }, { .if_peer = "wan_bridge" } };
- namespace_t peer_nat = {
- .name = "peer_nat",
- .type = FULL_CONE,
- .nat_arg = peer_nat_args,
- .static_config_net_addr = "192.168.1.0/24",
- .interfaces = peer_nat_ifs,
- .interfaces_no = 2,
- };
-
- interface_t wan_ifs[] = { { .if_peer = "peer_nat" }, { .if_peer = "nut_nat" }, { .if_peer = "relay" } };
- namespace_t wan_bridge = {
- .name = "wan_bridge",
- .type = BRIDGE,
- .interfaces = wan_ifs,
- .interfaces_no = 3,
- };
-
- namespace_t test_optimal_pmtu_1_nodes[] = { nut_nat, peer_nat, wan_bridge, nut, peer, relay };
-
- netns_state_t test_pmtu_nodes = {
- .test_case_name = "test_case_optimal_pmtu",
- .namespaces = test_optimal_pmtu_1_nodes,
- .num_namespaces = 6,
- };
- test_pmtu_state = &test_pmtu_nodes;
-
- const struct CMUnitTest blackbox_group0_tests[] = {
- cmocka_unit_test_prestate_setup_teardown(test_case_optimal_pmtu_01, setup_test, teardown_test,
- (void *)&test_pmtu_state),
- cmocka_unit_test_prestate_setup_teardown(test_case_optimal_pmtu_02, setup_test, teardown_test,
- (void *)&test_pmtu_state),
- cmocka_unit_test_prestate_setup_teardown(test_case_optimal_pmtu_03, setup_test, teardown_test,
- (void *)&test_pmtu_state),
- cmocka_unit_test_prestate_setup_teardown(test_case_optimal_pmtu_04, setup_test, teardown_test,
- (void *)&test_pmtu_state),
- cmocka_unit_test_prestate_setup_teardown(test_case_optimal_pmtu_05, setup_test, teardown_test,
- (void *)&test_pmtu_state),
- cmocka_unit_test_prestate_setup_teardown(test_case_optimal_pmtu_06, setup_test, teardown_test,
- (void *)&test_pmtu_state),
- cmocka_unit_test_prestate_setup_teardown(test_case_optimal_pmtu_07, setup_test, teardown_test,
- (void *)&test_pmtu_state),
- };
- total_tests += sizeof(blackbox_group0_tests) / sizeof(blackbox_group0_tests[0]);
-
- return cmocka_run_group_tests(blackbox_group0_tests, NULL, NULL);
-}
projects / meshlink-tiny / blobdiff