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.
32 #include "../common/common_handlers.h"
33 #include "../common/test_step.h"
34 #include "../common/mesh_event_handler.h"
35 #include "../../utils.h"
37 #define CMD_LINE_ARG_NODENAME 1
38 #define CMD_LINE_ARG_DEVCLASS 2
39 #define CMD_LINE_ARG_CLIENTID 3
40 #define CMD_LINE_ARG_IMPORTSTR 4
41 #define CMD_LINE_ARG_INVITEURL 5
42 #define CHANNEL_PORT 1234
44 static void channel_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *dat, size_t len);
45 static bool channel_accept(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *dat, size_t len);
47 static struct sync_flag sigusr = {.mutex = PTHREAD_MUTEX_INITIALIZER, .cond = PTHREAD_COND_INITIALIZER};
48 static int client_id = -1;
50 static void mesh_siguser1_signal_handler(int sig_num) {
53 set_sync_flag(&sigusr, true);
58 static bool channel_accept(meshlink_handle_t *mesh, meshlink_channel_t *channel, uint16_t port, const void *dat, size_t len) {
62 assert(port == CHANNEL_PORT);
64 if(!strcmp(channel->node->name, "nut")) {
65 meshlink_set_channel_receive_cb(mesh, channel, channel_receive_cb);
74 /* channel receive callback */
75 static void channel_receive_cb(meshlink_handle_t *mesh, meshlink_channel_t *channel, const void *dat, size_t len) {
82 mesh_event_sock_send(client_id, ERR_NETWORK, NULL, 0);
86 if(!strcmp(channel->node->name, "nut") && !memcmp(dat, "test", 5)) {
87 assert(meshlink_channel_send(mesh, channel, "reply", 5) >= 0);
93 int main(int argc, char *argv[]) {
96 struct timeval main_loop_wait = { 2, 0 };
98 // Import mesh event handler
100 if((argv[CMD_LINE_ARG_CLIENTID]) && (argv[CMD_LINE_ARG_IMPORTSTR])) {
101 client_id = atoi(argv[CMD_LINE_ARG_CLIENTID]);
102 mesh_event_sock_connect(argv[CMD_LINE_ARG_IMPORTSTR]);
105 // Setup required signals
108 signal(SIGUSR1, mesh_siguser1_signal_handler);
110 // Run peer node instance
112 meshlink_handle_t *mesh = meshlink_open("testconf", argv[CMD_LINE_ARG_NODENAME],
113 "test_channel_conn", atoi(argv[CMD_LINE_ARG_DEVCLASS]));
115 meshlink_set_log_cb(mesh, MESHLINK_DEBUG, meshlink_callback_logger);
116 meshlink_set_channel_accept_cb(mesh, channel_accept);
118 if(argv[CMD_LINE_ARG_INVITEURL]) {
119 assert(meshlink_join(mesh, argv[CMD_LINE_ARG_INVITEURL]));
122 assert(meshlink_start(mesh));
124 assert(wait_sync_flag(&sigusr, 140));
125 meshlink_channel_t *channel = mesh->priv;
126 assert(meshlink_channel_send(mesh, channel, "failure", 7));
128 // All test steps executed - wait for signals to stop/start or close the mesh
130 while(test_running) {
131 select(1, NULL, NULL, NULL, &main_loop_wait);
134 meshlink_close(mesh);