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Added IPv4 fallback, made IPv6 and IPv4 fallback enabled by default

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This commit is contained in:
Maxim Biro 2014-10-12 23:21:59 -04:00
parent 3d23982250
commit 1200e69a3f
2 changed files with 52 additions and 17 deletions
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42
other/bootstrap_daemon/tox-bootstrapd.c
View File

@ -53,7 +53,7 @@
#define DAEMON_NAME "tox-bootstrapd"
#define DAEMON_VERSION_NUMBER 2014101000UL // yyyymmmddvv format: yyyy year, mm month, dd day, vv version change count for that day
#define DAEMON_VERSION_NUMBER 2014101200UL // yyyymmmddvv format: yyyy year, mm month, dd day, vv version change count for that day
#define SLEEP_TIME_MILLISECONDS 30
#define sleep usleep(1000*SLEEP_TIME_MILLISECONDS)
@ -62,6 +62,7 @@
#define DEFAULT_KEYS_FILE_PATH "tox-bootstrapd.keys"
#define DEFAULT_PORT 33445
#define DEFAULT_ENABLE_IPV6 1 // 1 - true, 0 - false
#define DEFAULT_ENABLE_IPV4_FALLBACK 1 // 1 - true, 0 - false
#define DEFAULT_ENABLE_LAN_DISCOVERY 1 // 1 - true, 0 - false
#define DEFAULT_ENABLE_TCP_RELAY 1 // 1 - true, 0 - false
#define DEFAULT_TCP_RELAY_PORTS 443, 3389, 33445 // comma-separated list of ports. make sure to adjust DEFAULT_TCP_RELAY_PORTS_COUNT accordingly
@ -233,8 +234,8 @@ void parse_tcp_relay_ports_config(config_t *cfg, uint16_t **tcp_relay_ports, int
// 0 on failure, doesn't modify any data pointed by arguments
int get_general_config(char *cfg_file_path, char **pid_file_path, char **keys_file_path, int *port, int *enable_ipv6,
int *enable_lan_discovery, int *enable_tcp_relay, uint16_t **tcp_relay_ports, int *tcp_relay_port_count,
int *enable_motd, char **motd)
int *enable_ipv4_fallback, int *enable_lan_discovery, int *enable_tcp_relay, uint16_t **tcp_relay_ports,
int *tcp_relay_port_count, int *enable_motd, char **motd)
{
config_t cfg;
@ -242,6 +243,7 @@ int get_general_config(char *cfg_file_path, char **pid_file_path, char **keys_fi
const char *NAME_PID_FILE_PATH = "pid_file_path";
const char *NAME_KEYS_FILE_PATH = "keys_file_path";
const char *NAME_ENABLE_IPV6 = "enable_ipv6";
const char *NAME_ENABLE_IPV4_FALLBACK = "enable_ipv4_fallback";
const char *NAME_ENABLE_LAN_DISCOVERY = "enable_lan_discovery";
const char *NAME_ENABLE_TCP_RELAY = "enable_tcp_relay";
const char *NAME_ENABLE_MOTD = "enable_motd";
@ -294,6 +296,13 @@ int get_general_config(char *cfg_file_path, char **pid_file_path, char **keys_fi
*enable_ipv6 = DEFAULT_ENABLE_IPV6;
}
// Get IPv4 fallback option
if (config_lookup_bool(&cfg, NAME_ENABLE_IPV4_FALLBACK, enable_ipv4_fallback) == CONFIG_FALSE) {
syslog(LOG_WARNING, "No '%s' setting in configuration file.\n", NAME_ENABLE_IPV4_FALLBACK);
syslog(LOG_WARNING, "Using default '%s': %s\n", NAME_ENABLE_IPV4_FALLBACK, DEFAULT_ENABLE_IPV4_FALLBACK ? "true" : "false");
*enable_ipv4_fallback = DEFAULT_ENABLE_IPV4_FALLBACK;
}
// Get LAN discovery option
if (config_lookup_bool(&cfg, NAME_ENABLE_LAN_DISCOVERY, enable_lan_discovery) == CONFIG_FALSE) {
syslog(LOG_WARNING, "No '%s' setting in configuration file.\n", NAME_ENABLE_LAN_DISCOVERY);
@ -348,6 +357,7 @@ int get_general_config(char *cfg_file_path, char **pid_file_path, char **keys_fi
syslog(LOG_DEBUG, "'%s': %s\n", NAME_KEYS_FILE_PATH, *keys_file_path);
syslog(LOG_DEBUG, "'%s': %d\n", NAME_PORT, *port);
syslog(LOG_DEBUG, "'%s': %s\n", NAME_ENABLE_IPV6, *enable_ipv6 ? "true" : "false");
syslog(LOG_DEBUG, "'%s': %s\n", NAME_ENABLE_IPV4_FALLBACK, *enable_ipv4_fallback ? "true" : "false");
syslog(LOG_DEBUG, "'%s': %s\n", NAME_ENABLE_LAN_DISCOVERY, *enable_lan_discovery ? "true" : "false");
syslog(LOG_DEBUG, "'%s': %s\n", NAME_ENABLE_TCP_RELAY, *enable_tcp_relay ? "true" : "false");
@ -516,6 +526,7 @@ int main(int argc, char *argv[])
char *pid_file_path, *keys_file_path;
int port;
int enable_ipv6;
int enable_ipv4_fallback;
int enable_lan_discovery;
int enable_tcp_relay;
uint16_t *tcp_relay_ports;
@ -523,8 +534,8 @@ int main(int argc, char *argv[])
int enable_motd;
char *motd;
if (get_general_config(cfg_file_path, &pid_file_path, &keys_file_path, &port, &enable_ipv6, &enable_lan_discovery,
&enable_tcp_relay, &tcp_relay_ports, &tcp_relay_port_count, &enable_motd, &motd)) {
if (get_general_config(cfg_file_path, &pid_file_path, &keys_file_path, &port, &enable_ipv6, &enable_ipv4_fallback,
&enable_lan_discovery, &enable_tcp_relay, &tcp_relay_ports, &tcp_relay_port_count, &enable_motd, &motd)) {
syslog(LOG_DEBUG, "General config read successfully\n");
} else {
syslog(LOG_ERR, "Couldn't read config file: %s. Exiting.\n", cfg_file_path);
@ -547,7 +558,26 @@ int main(int argc, char *argv[])
IP ip;
ip_init(&ip, enable_ipv6);
DHT *dht = new_DHT(new_networking(ip, port));
Networking_Core *net = new_networking(ip, port);
if (net == NULL) {
if (enable_ipv6 && enable_ipv4_fallback) {
syslog(LOG_DEBUG, "Couldn't initialize IPv6 networking. Falling back to using IPv4.\n");
enable_ipv6 = 0;
ip_init(&ip, enable_ipv6);
net = new_networking(ip, port);
if (net == NULL) {
syslog(LOG_DEBUG, "Couldn't fallback to IPv4. Exiting.\n");
return 1;
}
} else {
syslog(LOG_DEBUG, "Couldn't initialize networking. Exiting.\n");
return 1;
}
}
DHT *dht = new_DHT(net);
if (dht == NULL) {
syslog(LOG_ERR, "Couldn't initialize Tox DHT instance. Exiting.\n");

27
other/bootstrap_daemon/tox-bootstrapd.conf
View File

@ -1,46 +1,51 @@
// Tox DHT bootstrap daemon configuration file.
// Listening port.
// Listening port (UDP).
port = 33445
// A key file is like a password, so keep it where no one can read it.
// If there is no key file, a new one will be generated.
// The daemon should have permission to read/write to it.
// The daemon should have permission to read/write it.
keys_file_path = "/var/lib/tox-bootstrapd/keys"
// The PID file written to by daemon.
// Make sure that the user who runs the daemon has permissions to write to the
// The PID file written to by the daemon.
// Make sure that the user that daemon runs as has permissions to write to the
// PID file.
pid_file_path = "/var/run/tox-bootstrapd/tox-bootstrapd.pid"
// Enable IPv6.
enable_ipv6 = false
enable_ipv6 = true
// Fallback to IPv4 in case IPv6 fails.
enable_ipv4_fallback = true
// Automatically bootstrap with nodes on local area network.
enable_lan_discovery = true
enable_tcp_relay = true
// Tox uses 443, 3389 and 33445 ports by default, so it's highly recommended to keep
// Tox uses 443, 3389 and 33445 ports by default, so it's highly encouraged to keep
// them.
tcp_relay_ports = [443, 3389, 33445]
// It's planned to use message of the day as a convenient method of checking
// whether a node is up or not, though there are other methods of doing that.
// Reply to MOTD (Message Of The Day) requests.
enable_motd = true
// Just a message that is sent when someone requests MOTD.
// Put anything you want, but note that it will be trimmed to fit into 255 bytes.
motd = "tox-bootstrapd"
// Any number of nodes the daemon will bootstrap itself off.
//
// Remember to replace the provided example with your own node list.
// There is a maintained list of bootstrap nodes on Tox's wiki, if you need it
// (http://wiki.tox.im/Nodes).
//
// You may leave the list empty or remove "bootstrap_nodes" completely,
// in both cases this will be interpreted as if you don't want to bootstrap
// from anyone.
// address = any ipv4 or Any ipv4 or ipv6, depending on whether `enable_ipv6`
// is set or not, and also any US-ASCII domain name.
//
// address = any ipv4 or ipv6 address and also any US-ASCII domain name.
bootstrap_nodes = (
{
// NikolaiToryzin - US