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.
31 #include <sys/ioctl.h>
33 #include <arpa/inet.h>
34 #include <sys/socket.h>
38 #include "test_step.h"
39 #include "common_handlers.h"
41 char *lxc_bridge = NULL;
42 black_box_state_t *state_ptr = NULL;
44 bool meta_conn_status[10];
48 static int meshlink_get_node_in_container(const char *name) {
51 for(i = 0; i < state_ptr->num_nodes; i++) {
52 if(!strcasecmp(state_ptr->node_names[i], name)) {
61 void mesh_close_signal_handler(int signum) {
68 void setup_signals(void) {
70 signal(SIGTERM, mesh_close_signal_handler);
73 /* Return the IP Address of the Interface 'if_name'
74 The caller is responsible for freeing the dynamically allocated string that is returned */
75 char *get_ip(const char *if_name) {
76 struct ifaddrs *ifaddr, *ifa;
80 ip = malloc(NI_MAXHOST);
82 assert(getifaddrs(&ifaddr) != -1);
84 for(ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
85 if(ifa->ifa_addr == NULL) {
89 family = ifa->ifa_addr->sa_family;
91 if(family == AF_INET && !strcmp(ifa->ifa_name, if_name)) {
92 assert(!getnameinfo(ifa->ifa_addr, (family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6), ip, NI_MAXHOST, NULL, 0, NI_NUMERICHOST));
100 /* Return the IP Address of the Interface 'if_name'
101 The caller is responsible for freeing the dynamically allocated string that is returned */
102 char *get_netmask(const char *if_name) {
103 struct ifaddrs *ifaddr, *ifa;
107 ip = malloc(NI_MAXHOST);
109 assert(getifaddrs(&ifaddr) != -1);
111 for(ifa = ifaddr; ifa != NULL; ifa = ifa->ifa_next) {
112 if(ifa->ifa_addr == NULL) {
116 family = ifa->ifa_addr->sa_family;
118 if(family == AF_INET && !strcmp(ifa->ifa_name, if_name)) {
119 assert(!getnameinfo(ifa->ifa_netmask, (family == AF_INET) ? sizeof(struct sockaddr_in) : sizeof(struct sockaddr_in6), ip, NI_MAXHOST, NULL, 0, NI_NUMERICHOST));
127 /* Change the IP Address of an interface */
128 void set_ip(const char *if_name, const char *new_ip) {
129 char set_ip_cmd[100];
130 assert(snprintf(set_ip_cmd, sizeof(set_ip_cmd), "ifconfig %s %s", if_name, new_ip) >= 0);
131 assert(system(set_ip_cmd) == 0);
134 /* Change the Netmask of an interface */
135 void set_netmask(const char *if_name, const char *new_netmask) {
136 char set_mask_cmd[100];
137 assert(snprintf(set_mask_cmd, sizeof(set_mask_cmd), "ifconfig %s netmask %s", if_name, new_netmask) >= 0);
138 assert(system(set_mask_cmd) == 0);
141 /* Bring a network interface down (before making changes such as the IP Address) */
142 void stop_nw_intf(const char *if_name) {
143 char nw_down_cmd[100];
144 assert(snprintf(nw_down_cmd, sizeof(nw_down_cmd), "ifconfig %s down", if_name) >= 0);
145 assert(system(nw_down_cmd) == 0);
148 /* Bring a network interface up (after bringing it down and making changes such as
150 void start_nw_intf(const char *if_name) {
152 assert(snprintf(nw_up_cmd, sizeof(nw_up_cmd), "ifconfig %s up", if_name) >= 0);
153 assert(system(nw_up_cmd) == 0);
156 void meshlink_callback_node_status(meshlink_handle_t *mesh, meshlink_node_t *node,
159 fprintf(stderr, "Node %s became %s\n", node->name, (reachable) ? "reachable" : "unreachable");
162 void meshlink_callback_logger(meshlink_handle_t *mesh, meshlink_log_level_t level,
167 fprintf(stderr, "meshlink>> %s\n", text);
173 if(sscanf(text, "Connection with %s activated", name) == 1) {
175 } else if(sscanf(text, "Already connected to %s", name) == 1) {
177 } else if(sscanf(text, "Connection closed by %s", name) == 1) {
179 } else if(sscanf(text, "Closing connection with %s", name) == 1) {
185 int i = meshlink_get_node_in_container(name);
187 meta_conn_status[i] = status;