Merge branch 'systemd'
* systemd: ngircd.sock: explicitely bind to IPv4 and IPv6 addresses Show address and port of sockets passed-in by systemd(8) Check type of sockets passed-in by systemd(8) Adjust severity levels of some log messages New configuration option "IdleTimeout": exit daemon when idle Implement support for systemd(8) "socket activation" contrib/README: add more files
This commit is contained in:
Alexander Barton
commit
628c14d656
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@ -1,6 +1,6 @@
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#
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# ngIRCd -- The Next Generation IRC Daemon
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# Copyright (c)2001-2012 Alexander Barton (alex@barton.de) and Contributors
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# Copyright (c)2001-2013 Alexander Barton (alex@barton.de) and Contributors
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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@ -17,6 +17,7 @@ EXTRA_DIST = README \
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ngIRCd-Logo.gif \
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ngircd-redhat.init \
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ngircd.service \
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ngircd.socket \
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ngircd.spec \
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platformtest.sh \
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systrace.policy
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@ -2,18 +2,21 @@
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ngIRCd - Next Generation IRC Server
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http://ngircd.barton.de/
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(c)2001-2011 Alexander Barton and Contributors.
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(c)2001-2013 Alexander Barton and Contributors.
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ngIRCd is free software and published under the
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terms of the GNU General Public License.
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-- Contributions --
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-- Contributions --
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Debian/
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- Various files for building Debian GNU/Linux packages (".deb's").
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- ngircd.init; ngircd.default: init script for Debian-based systems.
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- ngircd.pam: example PAM configuraton.
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MacOSX/
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- Project files for XCode, the "project builder" of Apple Mac OS X.
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- de.barton.ngircd.plist[.tmpl]: launchd(8) property list.
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ngindent
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- Script to indent the code of ngIRCd in the "standard way".
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@ -24,6 +27,12 @@ ngircd-bsd.sh
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ngircd-redhat.init
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- Start/stop script for RedHat-based distributions (like CentOS).
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ngircd.service
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- systemd(8) service unit configuration file.
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ngircd.socket
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- systemd(8) socket unit configuration file for "socket activation".
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ngircd.spec
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- RPM "spec" file.
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@ -0,0 +1,11 @@
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[Unit]
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Description=Next Generation IRC Daemon (Socket)
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[Socket]
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BindIPv6Only=ipv6-only
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ListenStream=0.0.0.0:6667
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#ListenStream=[::]:6667
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IPTOS=low-delay
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[Install]
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WantedBy=sockets.target
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@ -88,6 +88,13 @@
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# to not yet (or no longer) connected servers.
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;ConnectRetry = 60
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# Number of seconds after which the whole daemon should shutdown when
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# no connections are left active after handling at least one client
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# (0: never, which is the default).
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# This can be useful for testing or when ngIRCd is started using
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# "socket activation" with systemd(8), for example.
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;IdleTimeout = 0
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# Maximum number of simultaneous in- and outbound connections the
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# server is allowed to accept (0: unlimited):
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;MaxConnections = 0
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@ -1,7 +1,7 @@
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.\"
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.\" ngircd.conf(5) manual page template
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.\"
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.TH ngircd.conf 5 "Nov 2012" ngIRCd "ngIRCd Manual"
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.TH ngircd.conf 5 "Feb 2013" ngIRCd "ngIRCd Manual"
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.SH NAME
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ngircd.conf \- configuration file of ngIRCd
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.SH SYNOPSIS
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@ -170,6 +170,12 @@ should be safe, but it is wise to double-check :-)
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The server tries every <ConnectRetry> seconds to establish a link to not yet
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(or no longer) connected servers. Default: 60.
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.TP
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\fBIdleTimeout\fR (number)
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Number of seconds after which the whole daemon should shutdown when no
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connections are left active after handling at least one client (0: never). This
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can be useful for testing or when ngIRCd is started using "socket activation"
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with systemd(8), for example. Default: 0.
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.TP
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\fBMaxConnections\fR (number)
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Maximum number of simultaneous in- and outbound connections the server is
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allowed to accept (0: unlimited). Default: 0.
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@ -370,6 +370,7 @@ Conf_Test( void )
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puts("[LIMITS]");
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printf(" ConnectRetry = %d\n", Conf_ConnectRetry);
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printf(" IdleTimeout = %d\n", Conf_IdleTimeout);
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printf(" MaxConnections = %d\n", Conf_MaxConnections);
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printf(" MaxConnectionsIP = %d\n", Conf_MaxConnectionsIP);
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printf(" MaxJoins = %d\n", Conf_MaxJoins > 0 ? Conf_MaxJoins : -1);
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@ -736,6 +737,7 @@ Set_Defaults(bool InitServers)
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/* Limits */
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Conf_ConnectRetry = 60;
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Conf_IdleTimeout = 0;
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Conf_MaxConnections = 0;
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Conf_MaxConnectionsIP = 5;
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Conf_MaxJoins = 10;
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@ -830,8 +832,8 @@ Read_TextFile(const char *Filename, const char *Name, array *Destination)
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fp = fopen(Filename, "r");
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if (!fp) {
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Config_Error(LOG_WARNING, "Can't read %s file \"%s\": %s",
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Name, Filename, strerror(errno));
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Config_Error(LOG_ERR, "Can't read %s file \"%s\": %s",
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Name, Filename, strerror(errno));
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return false;
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}
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@ -841,7 +843,7 @@ Read_TextFile(const char *Filename, const char *Name, array *Destination)
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/* add text including \0 */
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if (!array_catb(Destination, line, strlen(line) + 1)) {
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Log(LOG_WARNING, "Cannot read/add \"%s\", line %d: %s",
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Log(LOG_ERR, "Cannot read/add \"%s\", line %d: %s",
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Filename, line_no, strerror(errno));
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break;
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}
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@ -1241,6 +1243,7 @@ CheckLegacyGlobalOption(int Line, char *Var, char *Arg)
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return "[Options]";
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}
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if (strcasecmp(Var, "ConnectRetry") == 0
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|| strcasecmp(Var, "IdleTimeout") == 0
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|| strcasecmp(Var, "MaxConnections") == 0
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|| strcasecmp(Var, "MaxConnectionsIP") == 0
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|| strcasecmp(Var, "MaxJoins") == 0
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@ -1490,6 +1493,12 @@ Handle_LIMITS(int Line, char *Var, char *Arg)
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}
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return;
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}
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if (strcasecmp(Var, "IdleTimeout") == 0) {
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Conf_IdleTimeout = atoi(Arg);
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if (!Conf_IdleTimeout && strcmp(Arg, "0"))
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Config_Error_NaN(Line, Var);
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return;
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}
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if (strcasecmp(Var, "MaxConnections") == 0) {
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Conf_MaxConnections = atoi(Arg);
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if (!Conf_MaxConnections && strcmp(Arg, "0"))
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@ -1,6 +1,6 @@
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/*
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* ngIRCd -- The Next Generation IRC Daemon
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* Copyright (c)2001-2012 Alexander Barton (alex@barton.de) and Contributors.
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* Copyright (c)2001-2013 Alexander Barton (alex@barton.de) and Contributors.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@ -211,6 +211,9 @@ GLOBAL bool Conf_ConnectIPv6;
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/** Try to connect to remote systems using the IPv4 protocol (true) */
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GLOBAL bool Conf_ConnectIPv4;
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/** Idle timout (seconds), after which the daemon should exit */
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GLOBAL int Conf_IdleTimeout;
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/** Maximum number of simultaneous connections to this server */
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GLOBAL int Conf_MaxConnections;
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@ -1,6 +1,6 @@
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/*
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* ngIRCd -- The Next Generation IRC Daemon
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* Copyright (c)2001-2012 Alexander Barton (alex@barton.de) and Contributors.
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* Copyright (c)2001-2013 Alexander Barton (alex@barton.de) and Contributors.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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@ -82,6 +82,8 @@
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#define MAX_COMMANDS_SERVER_MIN 10
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#define MAX_COMMANDS_SERVICE 10
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#define SD_LISTEN_FDS_START 3
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static bool Handle_Write PARAMS(( CONN_ID Idx ));
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static bool Conn_Write PARAMS(( CONN_ID Idx, char *Data, size_t Len ));
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@ -119,6 +121,42 @@ static void cb_Read_Resolver_Result PARAMS((int sock, UNUSED short what));
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static void cb_Connect_to_Server PARAMS((int sock, UNUSED short what));
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static void cb_clientserver PARAMS((int sock, short what));
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time_t idle_t = 0;
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/**
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* Get number of sockets available from systemd(8).
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*
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* ngIRCd needs to implement its own sd_listen_fds(3) function and can't
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* use the one provided by systemd itself, becaus the sockets will be
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* used in a forked child process with a new PID, and this would trigger
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* an error in the standard implementation.
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*
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* @return Number of sockets available, -1 if sockets have already been
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* initialized, or 0 when no sockets have been passed.
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*/
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static int
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my_sd_listen_fds(void)
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{
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const char *e;
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long count;
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/* Check if LISTEN_PID exists; but we ignore the result, because
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* normally ngircd forks a child before checking this, and therefore
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* the PID set in the environment is always wrong ... */
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e = getenv("LISTEN_PID");
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if (!e || !*e)
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return 0;
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e = getenv("LISTEN_FDS");
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if (!e || !*e)
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return -1;
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count = atol(e);
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unsetenv("LISTEN_FDS");
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return count;
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}
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/**
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* IO callback for listening sockets: handle new connections. This callback
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@ -494,10 +532,71 @@ Conn_InitListeners( void )
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{
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/* Initialize ports on which the server should accept connections */
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unsigned int created = 0;
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char *copy, *listen_addr;
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char *af_str, *copy, *listen_addr;
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int count, fd, i, addr_len;
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ng_ipaddr_t addr;
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assert(Conf_ListenAddress);
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count = my_sd_listen_fds();
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if (count < 0) {
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Log(LOG_INFO,
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"Not re-initializing listening sockets of systemd(8) ...");
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return 0;
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}
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if (count > 0) {
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/* systemd(8) passed sockets to us, so don't try to initialize
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* listening sockets on our own but use the passed ones */
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LogDebug("Initializing %d systemd sockets ...", count);
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for (i = 0; i < count; i++) {
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fd = SD_LISTEN_FDS_START + i;
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addr_len = (int)sizeof(addr);
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getsockname(fd, (struct sockaddr *)&addr, (socklen_t*)&addr_len);
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#ifdef WANT_IPV6
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if (addr.sin4.sin_family != AF_INET && addr.sin4.sin_family != AF_INET6)
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#else
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if (addr.sin4.sin_family != AF_INET)
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#endif
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{
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/* Socket is of unsupported type! For example, systemd passed in
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* an IPv6 socket but ngIRCd isn't compiled with IPv6 support. */
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switch (addr.sin4.sin_family)
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{
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case AF_UNSPEC: af_str = "AF_UNSPEC"; break;
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case AF_UNIX: af_str = "AF_UNIX"; break;
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case AF_INET: af_str = "AF_INET"; break;
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#ifdef AF_INET6
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case AF_INET6: af_str = "AF_INET6"; break;
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#endif
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#ifdef AF_NETLINK
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case AF_NETLINK: af_str = "AF_NETLINK"; break;
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#endif
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default: af_str = "unknown"; break;
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}
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Log(LOG_CRIT,
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"Socket %d is of unsupported type \"%s\" (%d), have to ignore it!",
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fd, af_str, addr.sin4.sin_family);
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close(fd);
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continue;
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}
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Init_Socket(fd);
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if (!io_event_create(fd, IO_WANTREAD, cb_listen)) {
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Log(LOG_ERR,
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"io_event_create(): Can't add fd %d: %s!",
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fd, strerror(errno));
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continue;
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}
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Log(LOG_INFO,
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"Initialized socket %d from systemd(8): %s:%d.", fd,
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ng_ipaddr_tostr(&addr), ng_ipaddr_getport(&addr));
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created++;
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}
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return created;
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}
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/* not using systemd socket activation, initialize listening sockets: */
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/* can't use Conf_ListenAddress directly, see below */
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copy = strdup(Conf_ListenAddress);
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if (!copy) {
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@ -541,7 +640,12 @@ Conn_ExitListeners( void )
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int *fd;
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size_t arraylen;
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/* Get number of listening sockets to shut down. There can be none
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* if ngIRCd has been "socket activated" by systemd. */
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arraylen = array_length(&My_Listeners, sizeof (int));
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if (arraylen < 1)
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return;
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Log(LOG_INFO,
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"Shutting down all listening sockets (%d total) ...", arraylen);
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fd = array_start(&My_Listeners);
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@ -836,6 +940,15 @@ Conn_Handler(void)
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PACKAGE_NAME);
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exit(1);
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}
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/* Should ngIRCd timeout when idle? */
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if (Conf_IdleTimeout > 0 && NumConnectionsAccepted > 0
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&& idle_t > 0 && time(NULL) - idle_t >= Conf_IdleTimeout) {
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LogDebug("Server idle timeout reached: %d second%s. Initiating shutdown ...",
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Conf_IdleTimeout,
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Conf_IdleTimeout == 1 ? "" : "s");
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NGIRCd_SignalQuit = true;
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}
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}
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if (NGIRCd_SignalQuit)
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@ -1197,6 +1310,8 @@ Conn_Close( CONN_ID Idx, const char *LogMsg, const char *FwdMsg, bool InformClie
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NumConnections--;
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LogDebug("Shutdown of connection %d completed, %ld connection%s left.",
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Idx, NumConnections, NumConnections != 1 ? "s" : "");
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idle_t = NumConnections > 0 ? 0 : time(NULL);
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} /* Conn_Close */
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@ -1568,6 +1683,7 @@ static void
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Account_Connection(void)
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{
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NumConnections++;
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idle_t = 0;
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if (NumConnections > NumConnectionsMax)
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NumConnectionsMax = NumConnections;
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LogDebug("Total number of connections now %lu (max %lu).",
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@ -109,7 +109,7 @@ Log_ReInit(void)
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GLOBAL void
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Log_Exit( void )
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{
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Log(LOG_NOTICE, "%s done%s, served %lu connection%s.", PACKAGE_NAME,
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Log(LOG_INFO, "%s done%s, served %lu connection%s.", PACKAGE_NAME,
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NGIRCd_SignalRestart ? " (restarting)" : "", Conn_CountAccepted(),
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Conn_CountAccepted() == 1 ? "" : "s");
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#ifdef SYSLOG
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||||
|
|
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|||
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Reference in New Issue