2 node_sim_peer.c -- Implementation of Node Simulation for Meshlink Testing
3 for meta connection test case 01 - re-connection of
4 two nodes when relay node goes down
5 Copyright (C) 2018 Guus Sliepen <guus@meshlink.io>
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License along
18 with this program; if not, write to the Free Software Foundation, Inc.,
19 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
33 #include "../common/common_handlers.h"
34 #include "../common/test_step.h"
35 #include "../common/network_namespace_framework.h"
36 #include "../../utils.h"
37 #include "../run_blackbox_tests/test_optimal_pmtu.h"
39 extern bool test_pmtu_peer_running;
41 static struct sync_flag channel_opened = {.mutex = PTHREAD_MUTEX_INITIALIZER, .cond = PTHREAD_COND_INITIALIZER};
43 static void channel_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *dat, size_t len);
44 static bool channel_accept(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *dat, size_t len);
46 static bool channel_accept(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *dat, size_t len) {
50 assert(port == CHANNEL_PORT);
52 if(!strcmp(channel->node->name, "nut")) {
53 meshlink_set_channel_receive_cb(mesh, channel, channel_receive_cb);
54 //channel->node->priv = channel;
62 /* channel receive callback */
63 static void channel_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *dat, size_t len) {
70 if(!strcmp(channel->node->name, "nut")) {
71 if(!memcmp(dat, "reply", 5)) {
72 set_sync_flag(&channel_opened, true);
73 } else if(!memcmp(dat, "test", 5)) {
74 assert(meshlink_channel_send(mesh, channel, "reply", 5) >= 0);
81 static void log_message(meshlink_handle_t *mesh, meshlink_log_level_t level, const char *text) {
84 if(level == MESHLINK_INFO) {
85 fprintf(stderr, "\x1b[34m peer:\x1b[0m %s\n", text);
89 void *node_sim_pmtu_peer_01(void *arg) {
90 mesh_arg_t *mesh_arg = (mesh_arg_t *)arg;
91 struct timeval main_loop_wait = { 5, 0 };
93 // Run relay node instance
96 meshlink_handle_t *mesh;
97 mesh = meshlink_open(mesh_arg->node_name, mesh_arg->confbase, mesh_arg->app_name, mesh_arg->dev_class);
100 meshlink_set_log_cb(mesh, MESHLINK_DEBUG, log_message);
101 meshlink_set_channel_accept_cb(mesh, channel_accept);
103 if(mesh_arg->join_invitation) {
107 for(attempts = 0; attempts < 10; attempts++) {
108 join_ret = meshlink_join(mesh, mesh_arg->join_invitation);
122 assert(meshlink_start(mesh));
124 // All test steps executed - wait for signals to stop/start or close the mesh
126 while(test_pmtu_peer_running) {
127 select(1, NULL, NULL, NULL, &main_loop_wait);
130 meshlink_close(mesh);