this also obsoletes ListenIPv4 and ListenIPv6 options.
If Listen is unset, it is treated as Listen="::,0.0.0.0".
Note: ListenIPv4 and ListenIPv6 options are still recognized,
but ngircd will print a warning if they are used in the config file.
Also, some plattforms require that ai_socktype
is set in the getaddrinfo() hints structure.
# one port, separated with ",". (Default: 6667)
;Ports = 6667, 6668, 6669
- # IP address on which the server should listen. (Default: empty,
- # so the server listens on all IP addresses of the system)
- ;Listen = 1.2.3.4
+ # comma seperated list of IP addresses on which the server should
+ # listen. Default values are:
+ # "0.0.0.0" or (if compiled with IPv6 support) "::,0.0.0.0"
+ # so the server listens on all IP addresses of the system by default.
+ ;Listen = 127.0.0.1,192.168.0.1
# Text file with the "message of the day" (MOTD). This message will
# be shown to all users connecting to the server:
# Don't do any DNS lookups when a client connects to the server.
;NoDNS = no
- # allow both ipv4 and ipv6 clients to connect by opening both
- # ipv4 and ipv6 sockets
- ;ListenIPv6 = yes
- ;ListenIPv4 = yes
-
# try to connect to other irc servers using ipv4 and ipv6, if possible
;ConnectIPv6 = yes
;ConnectIPv4 = yes
separated with ','. Default: 6667.
.TP
\fBListen\fR
-The IP address on which the server should listen. Default is empty, so
-the server listens on all configured IP addresses and interfaces.
+A comma seperated list of IP address on which the server should listen.
+If unset, the defaults value is "0.0.0.0", or, if ngircd was compiled
+with IPv6 support, "::,0.0.0.0", so the server listens on all configured
+IP addresses and interfaces by default.
.TP
\fBMotdFile\fR
Text file with the "message of the day" (MOTD). This message will be shown
perform a DNS lookup if required.
Default: No.
.TP
-\fBListenIPv4\fR
-Set this to no if you do not want ngircd to accept clients using the standard internet protocol, ipv4.
-This allows use of ngircd in ipv6-only setups.
-Default: Yes.
-.TP
-\fBListenIPv6\fR
-Set this to no if you do not want ngircd to accept clients using the new internet protocol, ipv6.
-Default: Yes.
-.TP
\fBConnectIPv4\fR
Set this to no if you do not want ngircd to connect to other irc servers using ipv4.
This allows use of ngircd in ipv6-only setups.
int ret;
char portstr[64];
struct addrinfo *res0;
- struct addrinfo hints = {
-#ifndef WANT_IPV6 /* only accept v4 addresses */
- .ai_family = AF_INET,
-#endif
- .ai_flags = AI_NUMERICHOST
- };
+ struct addrinfo hints;
+
+ assert(ip_str);
- if (ip_str == NULL)
- hints.ai_flags |= AI_PASSIVE;
+ memset(&hints, 0, sizeof(hints));
+ hints.ai_flags = AI_NUMERICHOST;
+
+ /* some getaddrinfo implementations require that ai_socktype is set. */
+ hints.ai_socktype = SOCK_STREAM;
/* silly, but ngircd stores UINT16 in server config, not string */
snprintf(portstr, sizeof(portstr), "%u", (unsigned int) port);
+
ret = getaddrinfo(ip_str, portstr, &hints, &res0);
assert(ret == 0);
if (ret != 0)
freeaddrinfo(res0);
return ret == 0;
#else /* HAVE_GETADDRINFO */
- if (ip_str == NULL)
- ip_str = "0.0.0.0";
+ assert(ip_str);
addr->sin4.sin_family = AF_INET;
# ifdef HAVE_INET_ATON
if (inet_aton(ip_str, &addr->sin4.sin_addr) == 0)
* init a ng_ipaddr_t object.
* @param addr: pointer to ng_ipaddr_t to initialize.
* @param ip_str: ip address in dotted-decimal (ipv4) or hexadecimal (ipv6) notation
- * if ip_str is NULL it is treated as 0.0.0.0/[::]
* @param port: transport layer port number to use.
*/
GLOBAL bool ng_ipaddr_init PARAMS((ng_ipaddr_t *addr, const char *ip_str, UINT16 port));
static int New_Server_Idx;
+#ifdef WANT_IPV6
+/*
+ * these options appeared in ngircd 0.12; they are here
+ * for backwards compatibility. They should be removed
+ * in the future. Instead of setting these options,
+ * the "Listen" option should be set accordingly.
+ */
+static bool Conf_ListenIPv6;
+static bool Conf_ListenIPv4;
+#endif
+
+
static void Set_Defaults PARAMS(( bool InitServers ));
static bool Read_Config PARAMS(( bool ngircd_starting ));
static void Validate_Config PARAMS(( bool TestOnly, bool Rehash ));
fputs(" Ports = ", stdout);
ports_puts(&Conf_ListenPorts);
-
- printf( " Listen = %s\n", Conf_ListenAddress );
+ printf(" Listen = %s\n", Conf_ListenAddress);
pwd = getpwuid( Conf_UID );
if( pwd ) printf( " ServerUID = %s\n", pwd->pw_name );
else printf( " ServerUID = %ld\n", (long)Conf_UID );
printf( " NoDNS = %s\n", yesno_to_str(Conf_NoDNS));
#ifdef WANT_IPV6
- printf(" ListenIPv6 = %s\n", yesno_to_str(Conf_ListenIPv6));
- printf(" ListenIPv4 = %s\n", yesno_to_str(Conf_ListenIPv4));
+ /* both are deprecated, only mention them if their default value changed. */
+ if (!Conf_ListenIPv6)
+ puts(" ListenIPv6 = no");
+ if (!Conf_ListenIPv4)
+ puts(" ListenIPv4 = no");
printf(" ConnectIPv4 = %s\n", yesno_to_str(Conf_ConnectIPv6));
printf(" ConnectIPv6 = %s\n", yesno_to_str(Conf_ConnectIPv4));
#endif
strlcpy( Conf_PidFile, PID_FILE, sizeof( Conf_PidFile ));
- strcpy( Conf_ListenAddress, "" );
-
+ free(Conf_ListenAddress);
+ Conf_ListenAddress = NULL;
Conf_UID = Conf_GID = 0;
Conf_PingTimeout = 120;
exit( 1 );
}
}
+
+ if (!Conf_ListenAddress) {
+ /* no Listen addresses configured, use default */
+#ifdef WANT_IPV6
+ /* Conf_ListenIPv6/4 should no longer be used */
+ if (Conf_ListenIPv6 && Conf_ListenIPv4)
+ Conf_ListenAddress = strdup_warn("::,0.0.0.0");
+ else if (Conf_ListenIPv6)
+ Conf_ListenAddress = strdup_warn("::");
+ else
+#endif
+ Conf_ListenAddress = strdup_warn("0.0.0.0");
+ }
+ if (!Conf_ListenAddress) {
+ Config_Error(LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME);
+ exit(1);
+ }
return true;
} /* Read_Config */
}
#ifdef WANT_IPV6
/* the default setting for all the WANT_IPV6 special options is 'true' */
- if( strcasecmp( Var, "ListenIPv6" ) == 0 ) {
- /* listen on ipv6 sockets, if available? */
+ if (strcasecmp(Var, "ListenIPv6") == 0) { /* DEPRECATED, option appeared in 0.12.0 */
+ /*
+ * listen on ipv6 sockets, if available?
+ * Deprecated use "Listen = 0.0.0.0" (or, rather, do not list "::")
+ */
Conf_ListenIPv6 = Check_ArgIsTrue( Arg );
+ Config_Error(LOG_WARNING, "%s, line %d: %s=%s is deprecated, %sinclude '::' in \"Listen =\" option instead",
+ NGIRCd_ConfFile, Line, Var, yesno_to_str(Conf_ListenIPv6), Conf_ListenIPv6 ? " ":"do not ");
return;
}
- if( strcasecmp( Var, "ListenIPv4" ) == 0 ) {
+ if (strcasecmp(Var, "ListenIPv4") == 0) { /* DEPRECATED, option appeared in 0.12.0 */
/*
* listen on ipv4 sockets, if available?
- * this allows "ipv6-only" setups.
+ * this allows "ipv6-only" setups
+ * Deprecated use "Listen = ::" (or, rather, do not list "0.0.0.0")
*/
Conf_ListenIPv4 = Check_ArgIsTrue( Arg );
+ Config_Error(LOG_WARNING, "%s, line %d: %s=%s is deprecated, %sinclude '0.0.0.0' in \"Listen =\" option instead",
+ NGIRCd_ConfFile, Line, Var, yesno_to_str(Conf_ListenIPv4), Conf_ListenIPv4 ? " ":"do not ");
return;
}
if( strcasecmp( Var, "ConnectIPv6" ) == 0 ) {
if( strcasecmp( Var, "Listen" ) == 0 ) {
/* IP-Address to bind sockets */
- len = strlcpy( Conf_ListenAddress, Arg, sizeof( Conf_ListenAddress ));
- if (len >= sizeof( Conf_ListenAddress ))
- Config_Error_TooLong( Line, Var );
+ if (Conf_ListenAddress) {
+ Config_Error(LOG_ERR, "Multiple Listen= options, ignoring: %s", Arg);
+ return;
+ }
+ Conf_ListenAddress = strdup_warn(Arg);
+ /*
+ * if allocation fails, we're in trouble:
+ * we cannot ignore the error -- otherwise ngircd
+ * would listen on all interfaces.
+ */
+ if (!Conf_ListenAddress) {
+ Config_Error(LOG_ALERT, "%s exiting due to fatal errors!", PACKAGE_NAME);
+ exit(1);
+ }
return;
}
-
- Config_Error( LOG_ERR, "%s, line %d (section \"Global\"): Unknown variable \"%s\"!",
- NGIRCd_ConfFile, Line, Var );
+ Config_Error(LOG_ERR, "%s, line %d (section \"Global\"): Unknown variable \"%s\"!",
+ NGIRCd_ConfFile, Line, Var);
} /* Handle_GLOBAL */
"No administrative information configured but required by RFC!");
}
-#ifdef WANT_IPV6
- if (!Conf_ListenIPv4 && !Conf_ListenIPv6)
- Config_Error(LOG_ALERT,
- "Both \"ListenIPv4\" and \"ListenIPv6\" are set to 'no'; no network protocol available!");
-
- if (!Conf_ConnectIPv4 && !Conf_ConnectIPv6)
- Config_Error(LOG_ALERT,
- "Both \"ConnectIPv4\" and \"ConnectIPv6\" are set to 'no'; ngircd will fail to connect to other irc servers");
-#endif
-
#ifdef DEBUG
servers = servers_once = 0;
for (i = 0; i < MAX_SERVERS; i++) {
GLOBAL array Conf_ListenPorts;
/* Address to which the socket should be bound or empty (=all) */
-GLOBAL char Conf_ListenAddress[16];
+GLOBAL char *Conf_ListenAddress;
/* User and group ID the server should run with */
GLOBAL uid_t Conf_UID;
/* Disable all DNS functions? */
GLOBAL bool Conf_NoDNS;
-/* listen for incoming ipv6 connections if OS supports it (default: yes)? */
-GLOBAL bool Conf_ListenIPv6;
-
-/* listen for incoming ipv4 connections if OS supports it (default: yes)? */
-GLOBAL bool Conf_ListenIPv4;
-
/*
* try to connect to remote systems using the ipv6 protocol,
* if they have an ipv6 address? (default yes)
static bool Init_Socket PARAMS(( int Sock ));
static void New_Server PARAMS(( int Server, ng_ipaddr_t *dest ));
static void Simple_Message PARAMS(( int Sock, const char *Msg ));
-static int NewListener PARAMS(( int af, const UINT16 Port ));
+static int NewListener PARAMS(( const char *listen_addr, UINT16 Port ));
static array My_Listeners;
static array My_ConnArray;
static unsigned int
-ports_initlisteners(array *a, int af, void (*func)(int,short))
+ports_initlisteners(array *a, const char *listen_addr, void (*func)(int,short))
{
unsigned int created = 0;
size_t len;
len = array_length(a, sizeof (UINT16));
port = array_start(a);
- while(len--) {
- fd = NewListener(af, *port);
+ while (len--) {
+ fd = NewListener(listen_addr, *port);
if (fd < 0) {
port++;
continue;
}
if (!io_event_create( fd, IO_WANTREAD, func )) {
Log( LOG_ERR, "io_event_create(): Could not add listening fd %d (port %u): %s!",
- fd, (unsigned int) *port, strerror(errno));
+ fd, (unsigned int) *port, strerror(errno));
close(fd);
port++;
continue;
created++;
port++;
}
-
return created;
}
Conn_InitListeners( void )
{
/* Initialize ports on which the server should accept connections */
-
unsigned int created = 0;
+ char *copy, *listen_addr;
if (!io_library_init(CONNECTION_POOL)) {
Log(LOG_EMERG, "Cannot initialize IO routines: %s", strerror(errno));
return -1;
}
-#ifdef WANT_IPV6
- if (Conf_ListenIPv6)
- created = ports_initlisteners(&Conf_ListenPorts, AF_INET6, cb_listen);
-#endif
- if (Conf_ListenIPv4)
- created += ports_initlisteners(&Conf_ListenPorts, AF_INET, cb_listen);
+ assert(Conf_ListenAddress);
+
+ /* can't use Conf_ListenAddress directly, see below */
+ copy = strdup(Conf_ListenAddress);
+ if (!copy) {
+ Log(LOG_CRIT, "Cannot copy %s: %s", Conf_ListenAddress, strerror(errno));
+ return 0;
+ }
+ listen_addr = strtok(copy, ",");
+ while (listen_addr) {
+ ngt_TrimStr(listen_addr);
+ if (*listen_addr)
+ created += ports_initlisteners(&Conf_ListenPorts, listen_addr, cb_listen);
+
+ listen_addr = strtok(NULL, ",");
+ }
+
+ /*
+ * can't free() Conf_ListenAddress here. On /REHASH, if the config file
+ * cannot be re-loaded, we'd end up with a NULL Conf_ListenAddress.
+ * Instead, free() takes place in conf.c, before the config file
+ * is being parsed.
+ */
+ free(copy);
return created;
} /* Conn_InitListeners */
static bool
-InitSinaddrListenAddr(int af, ng_ipaddr_t *addr, UINT16 Port)
+InitSinaddrListenAddr(ng_ipaddr_t *addr, const char *listen_addrstr, UINT16 Port)
{
bool ret;
- const char *listen_addrstr = NULL;
-#ifdef WANT_IPV6
- if (af == AF_INET)
- listen_addrstr = "0.0.0.0";
-#else
- (void)af;
-#endif
- if (Conf_ListenAddress[0]) /* overrides V4/V6 atm */
- listen_addrstr = Conf_ListenAddress;
ret = ng_ipaddr_init(addr, listen_addrstr, Port);
if (!ret) {
- if (!listen_addrstr)
- listen_addrstr = "";
- Log(LOG_CRIT, "Can't bind to %s:%u: can't convert ip address \"%s\"",
- listen_addrstr, Port, listen_addrstr);
+ assert(listen_addrstr);
+ Log(LOG_CRIT, "Can't bind to [%s]:%u: can't convert ip address \"%s\"",
+ listen_addrstr, Port, listen_addrstr);
}
return ret;
}
/* return new listening port file descriptor or -1 on failure */
static int
-NewListener(int af, const UINT16 Port)
+NewListener(const char *listen_addr, UINT16 Port)
{
/* Create new listening socket on specified port */
ng_ipaddr_t addr;
- int sock;
+ int sock, af;
#ifdef ZEROCONF
char name[CLIENT_ID_LEN], *info;
#endif
- if (!InitSinaddrListenAddr(af, &addr, Port))
+ if (!InitSinaddrListenAddr(&addr, listen_addr, Port))
return -1;
- sock = socket(ng_ipaddr_af(&addr), SOCK_STREAM, 0);
+ af = ng_ipaddr_af(&addr);
+ sock = socket(af, SOCK_STREAM, 0);
if( sock < 0 ) {
- Log( LOG_CRIT, "Can't create socket: %s!", strerror( errno ));
+ Log(LOG_CRIT, "Can't create socket (af %d) : %s!", af, strerror(errno));
return -1;
}
- af = ng_ipaddr_af(&addr);
-
set_v6_only(af, sock);
if (!Init_Socket(sock))
return -1;
}
-#ifdef WANT_IPV6
- if (af == AF_INET6)
- Log(LOG_INFO, "Now listening on [%s]:%d (socket %d).", ng_ipaddr_tostr(&addr), Port, sock);
- else
-#endif
- Log(LOG_INFO, "Now listening on %s:%d (socket %d).", ng_ipaddr_tostr(&addr), Port, sock);
+ Log(LOG_INFO, "Now listening on [%s]:%d (socket %d).", ng_ipaddr_tostr(&addr), Port, sock);
#ifdef ZEROCONF
/* Get best server description text */
af_dest = ng_ipaddr_af(dest);
new_sock = socket(af_dest, SOCK_STREAM, 0);
if (new_sock < 0) {
- Log( LOG_CRIT, "Can't create socket: %s!", strerror( errno ));
+ Log( LOG_CRIT, "Can't create socket (af %d) : %s!", af_dest, strerror( errno ));
return;
}
projects / ngircd-alex.git / commitdiff