2 common_handlers.c -- Implementation of common callback handling and signal handling
3 functions for black box tests
4 Copyright (C) 2018 Guus Sliepen <guus@meshlink.io>
6 This program is free software; you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation; either version 2 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License along
17 with this program; if not, write to the Free Software Foundation, Inc.,
18 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
26 #include <sys/ioctl.h>
28 #include <arpa/inet.h>
29 #include <sys/socket.h>
33 #include "test_step.h"
34 #include "common_handlers.h"
36 char *lxc_bridge = NULL;
37 black_box_state_t *state_ptr = NULL;
39 bool meta_conn_status[10];
43 static int meshlink_get_node_in_container(const char *name) {
46 for(i = 0; i < state_ptr->num_nodes; i++) {
47 if(!strcasecmp(state_ptr->node_names[i], name)) {
56 void mesh_close_signal_handler(int signum) {
63 void setup_signals(void) {
65 signal(SIGTERM, mesh_close_signal_handler);
68 /* Return the IP Address of the Interface 'if_name'
69 The caller is responsible for freeing the dynamically allocated string that is returned */
70 char *get_ip(const char *if_name) {
71 struct ifaddrs *ifaddr, *ifa;
75 ip = malloc(NI_MAXHOST);
77 assert(getifaddrs(&ifaddr) != -1);
79 for(ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
80 if(ifa->ifa_addr == NULL) {
84 family = ifa->ifa_addr->sa_family;
86 if(family == AF_INET && !strcmp(ifa->ifa_name, if_name)) {
87 assert(!getnameinfo(ifa->ifa_addr, (family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6), ip, NI_MAXHOST, NULL, 0, NI_NUMERICHOST));
95 /* Return the IP Address of the Interface 'if_name'
96 The caller is responsible for freeing the dynamically allocated string that is returned */
97 char *get_netmask(const char *if_name) {
98 struct ifaddrs *ifaddr, *ifa;
102 ip = malloc(NI_MAXHOST);
104 assert(getifaddrs(&ifaddr) != -1);
106 for(ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
107 if(ifa->ifa_addr == NULL) {
111 family = ifa->ifa_addr->sa_family;
113 if(family == AF_INET && !strcmp(ifa->ifa_name, if_name)) {
114 assert(!getnameinfo(ifa->ifa_netmask, (family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6), ip, NI_MAXHOST, NULL, 0, NI_NUMERICHOST));
122 /* Change the IP Address of an interface */
123 void set_ip(const char *if_name, const char *new_ip) {
124 char set_ip_cmd[100];
125 assert(snprintf(set_ip_cmd, sizeof(set_ip_cmd), "ifconfig %s %s", if_name, new_ip) >= 0);
126 assert(system(set_ip_cmd) == 0);
129 /* Change the Netmask of an interface */
130 void set_netmask(const char *if_name, const char *new_netmask) {
131 char set_mask_cmd[100];
132 assert(snprintf(set_mask_cmd, sizeof(set_mask_cmd), "ifconfig %s netmask %s", if_name, new_netmask) >= 0);
133 assert(system(set_mask_cmd) == 0);
136 /* Bring a network interface down (before making changes such as the IP Address) */
137 void stop_nw_intf(const char *if_name) {
138 char nw_down_cmd[100];
139 assert(snprintf(nw_down_cmd, sizeof(nw_down_cmd), "ifconfig %s down", if_name) >= 0);
140 assert(system(nw_down_cmd) == 0);
143 /* Bring a network interface up (after bringing it down and making changes such as
145 void start_nw_intf(const char *if_name) {
147 assert(snprintf(nw_up_cmd, sizeof(nw_up_cmd), "ifconfig %s up", if_name) >= 0);
148 assert(system(nw_up_cmd) == 0);
151 void meshlink_callback_node_status(meshlink_handle_t *mesh, meshlink_node_t *node,
154 fprintf(stderr, "Node %s became %s\n", node->name, (reachable) ? "reachable" : "unreachable");
157 void meshlink_callback_logger(meshlink_handle_t *mesh, meshlink_log_level_t level,
162 fprintf(stderr, "meshlink>> %s\n", text);
168 if(sscanf(text, "Connection with %s activated", name) == 1) {
170 } else if(sscanf(text, "Already connected to %s", name) == 1) {
172 } else if(sscanf(text, "Connection closed by %s", name) == 1) {
174 } else if(sscanf(text, "Closing connection with %s", name) == 1) {
180 int i = meshlink_get_node_in_container(name);
182 meta_conn_status[i] = status;