X-Git-Url: https://jfr.im/git/irc/rqf/shadowircd.git/blobdiff_plain/68db0a4db9487fabc8dfd92f9c49d44c7fe90ce2..1434082803efc1c59376156bfd2db4827a34ca5b:/src/ircd.c

diff --git a/src/ircd.c b/src/ircd.c
index 7822ed5..b5f8076 100644
--- a/src/ircd.c
+++ b/src/ircd.c
@@ -1,10 +1,11 @@
 /*
- *  ircd-ratbox: A slightly useful ircd.
+ *  charybdis: A slightly useful ircd.
  *  ircd.c: Starts up and runs the ircd.
  *
  *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
  *  Copyright (C) 1996-2002 Hybrid Development Team
- *  Copyright (C) 2002-2005 ircd-ratbox development team
+ *  Copyright (C) 2002-2008 ircd-ratbox development team
+ *  Copyright (C) 2005-2008 charybdis development team
  *
  *  This program is free software; you can redistribute it and/or modify
  *  it under the terms of the GNU General Public License as published by
@@ -21,23 +22,21 @@
  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  *  USA
  *
- *  $Id: ircd.c 3380 2007-04-03 22:25:11Z jilles $
+ *  $Id$
  */
 
+#include "ratbox_lib.h"
 #include "stdinc.h"
 #include "setup.h"
 #include "config.h"
-
 #include "ircd.h"
 #include "channel.h"
 #include "class.h"
 #include "client.h"
 #include "common.h"
 #include "hash.h"
-#include "irc_string.h"
+#include "match.h"
 #include "ircd_signal.h"
-#include "sprintf_irc.h"
-#include "s_gline.h"
 #include "msg.h"		/* msgtab */
 #include "hostmask.h"
 #include "numeric.h"
@@ -46,7 +45,7 @@
 #include "restart.h"
 #include "s_auth.h"
 #include "s_conf.h"
-#include "s_log.h"
+#include "logger.h"
 #include "s_serv.h"		/* try_connections */
 #include "s_user.h"
 #include "s_stats.h"
@@ -65,20 +64,90 @@
 #include "monitor.h"
 #include "patchlevel.h"
 #include "serno.h"
+#include "sslproc.h"
+#include "chmode.h"
+#include "privilege.h"
+#include "bandbi.h"
+
+/* /quote set variables */
+struct SetOptions GlobalSetOptions;
+
+/* configuration set from ircd.conf */
+struct config_file_entry ConfigFileEntry;
+/* server info set from ircd.conf */
+struct server_info ServerInfo;
+/* admin info set from ircd.conf */
+struct admin_info AdminInfo;
+
+struct Counter Count;
+struct ServerStatistics ServerStats;
+
+int maxconnections;
+struct Client me;		/* That's me */
+struct LocalUser meLocalUser;	/* That's also part of me */
+
+rb_dlink_list global_client_list;
+
+/* unknown/client pointer lists */
+rb_dlink_list unknown_list;        /* unknown clients ON this server only */
+rb_dlink_list lclient_list;	/* local clients only ON this server */
+rb_dlink_list serv_list;           /* local servers to this server ONLY */
+rb_dlink_list global_serv_list;    /* global servers on the network */
+rb_dlink_list local_oper_list;     /* our opers, duplicated in lclient_list */
+rb_dlink_list oper_list;           /* network opers */
+
+const char *logFileName = LPATH;
+const char *pidFileName = PPATH;
+
+char **myargv;
+int dorehash = 0;
+int dorehashbans = 0;
+int doremotd = 0;
+int kline_queued = 0;
+int server_state_foreground = 0;
+int opers_see_all_users = 0;
+int ssl_ok = 0;
+int zlib_ok = 1;
+
+int testing_conf = 0;
+time_t startup_time;
+
+int default_server_capabs = CAP_MASK;
+
+int splitmode;
+int splitchecking;
+int split_users;
+int split_servers;
+int eob_count;
 
-#include "ratbox_lib.h"
+void
+ircd_shutdown(const char *reason)
+{
+	struct Client *target_p;
+	rb_dlink_node *ptr;
 
-/*
- * Try and find the correct name to use with getrlimit() for setting the max.
- * number of files allowed to be open by this process.
- */
-int _charybdis_data_version = CHARYBDIS_DV;
+	RB_DLINK_FOREACH(ptr, lclient_list.head)
+	{
+		target_p = ptr->data;
+
+		sendto_one(target_p, ":%s NOTICE %s :Server Terminating. %s",
+			me.name, target_p->name, reason);
+	}
+
+	RB_DLINK_FOREACH(ptr, serv_list.head)
+	{
+		target_p = ptr->data;
+
+		sendto_one(target_p, ":%s ERROR :Terminated by %s",
+			me.name, reason);
+	}
 
-extern int ServerRunning;
-extern struct LocalUser meLocalUser;
-extern char **myargv;
+	ilog(L_MAIN, "Server Terminating. %s", reason);
+	close_logfiles();
 
-int maxconnections; /* XXX */
+	unlink(pidFileName);
+	exit(0);
+}
 
 /*
  * print_startup - print startup information
@@ -102,36 +171,6 @@ print_startup(int pid)
 	dup2(0, 2);
 }
 
-static void
-ircd_log_cb(const char *str)
-{
-	ilog(L_MAIN, "%s", str);
-}
-
-static void
-ircd_restart_cb(const char *str)
-{
-	restart(str);
-}
-
-/*
- * Why EXIT_FAILURE here?
- * Because if ircd_die_cb() is called it's because of a fatal
- * error inside libcharybdis, and we don't know how to handle the
- * exception, so it is logical to return a FAILURE exit code here.
- *    --nenolod
- */
-static void
-ircd_die_cb(const char *str)
-{
-	/* Try to get the message out to currently logged in operators. */
-	sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, "Server panic! %s", str);
-	inotice("server panic: %s", str);
-
-	unlink(pidFileName);
-	exit(EXIT_FAILURE);
-}
-
 /*
  * init_sys
  *
@@ -147,16 +186,17 @@ init_sys(void)
 
 	if(!getrlimit(RLIMIT_NOFILE, &limit))
 	{
-		limit.rlim_cur = limit.rlim_max;	/* make soft limit the max */
-		if(setrlimit(RLIMIT_NOFILE, &limit) == -1)
+		maxconnections = limit.rlim_cur;
+		if(maxconnections <= MAX_BUFFER)
 		{
-			fprintf(stderr, "error setting max fd's to %ld\n", (long) limit.rlim_cur);
+			fprintf(stderr, "ERROR: Shell FD limits are too low.\n");
+			fprintf(stderr, "ERROR: charybdis reserves %d FDs, shell limits must be above this\n", MAX_BUFFER);
 			exit(EXIT_FAILURE);
 		}
+		return;
 	}
-
-	maxconnections = limit.rlim_cur;
-#endif /* RLIMIT_NOFILE */
+#endif /* RLIMIT_FD_MAX */
+	maxconnections = MAXCONNECTIONS;
 }
 
 static int
@@ -203,16 +243,8 @@ make_daemon(void)
 static int printVersion = 0;
 
 struct lgetopt myopts[] = {
-	{"dlinefile", &ConfigFileEntry.dlinefile,
-	 STRING, "File to use for dlines.conf"},
 	{"configfile", &ConfigFileEntry.configfile,
 	 STRING, "File to use for ircd.conf"},
-	{"klinefile", &ConfigFileEntry.klinefile,
-	 STRING, "File to use for kline.conf"},
-	{"xlinefile", &ConfigFileEntry.xlinefile,
-	 STRING, "File to use for xline.conf"},
-	{"resvfile", &ConfigFileEntry.resvfile,
-	 STRING, "File to use for resv.conf"},
 	{"logfile", &logFileName,
 	 STRING, "File to use for ircd.log"},
 	{"pidfile", &pidFileName,
@@ -227,33 +259,6 @@ struct lgetopt myopts[] = {
 	{NULL, NULL, STRING, NULL},
 };
 
-void
-set_time(void)
-{
-	struct timeval newtime;
-
-	newtime.tv_sec = 0;
-	newtime.tv_usec = 0;
-#ifdef HAVE_GETTIMEOFDAY
-	if(gettimeofday(&newtime, NULL) == -1)
-	{
-		ilog(L_MAIN, "Clock Failure (%d)", errno);
-		sendto_realops_snomask(SNO_GENERAL, L_ALL,
-				     "Clock Failure (%d), TS can be corrupted", errno);
-
-		restart("Clock Failure");
-	}
-#else
-	newtime.tv_sec = time(NULL);
-	
-#endif
-
-	SystemTime.tv_sec = newtime.tv_sec;
-	SystemTime.tv_usec = newtime.tv_usec;
-
-	rb_set_time();
-}
-
 static void
 check_rehash(void *unused)
 {
@@ -276,8 +281,7 @@ check_rehash(void *unused)
 	{
 		sendto_realops_snomask(SNO_GENERAL, L_ALL,
 				     "Got signal SIGUSR1, reloading ircd motd file");
-		free_cachefile(user_motd);
-		user_motd = cache_file(MPATH, "ircd.motd", 0);
+		cache_user_motd();
 		doremotd = 0;
 	}
 }
@@ -295,7 +299,11 @@ initialize_global_set_options(void)
 	memset(&GlobalSetOptions, 0, sizeof(GlobalSetOptions));
 	/* memset( &ConfigFileEntry, 0, sizeof(ConfigFileEntry)); */
 
-	GlobalSetOptions.maxclients = ServerInfo.max_clients;
+	GlobalSetOptions.maxclients = ServerInfo.default_max_clients;
+
+	if(GlobalSetOptions.maxclients > (maxconnections - MAX_BUFFER) || (GlobalSetOptions.maxclients <= 0))
+		GlobalSetOptions.maxclients = maxconnections - MAX_BUFFER;
+
 	GlobalSetOptions.autoconn = 1;
 
 	GlobalSetOptions.spam_time = MIN_JOIN_LEAVE_TIME;
@@ -316,12 +324,15 @@ initialize_global_set_options(void)
 		splitchecking = 1;
 	}
 
-	GlobalSetOptions.ident_timeout = IDENT_TIMEOUT;
+	if(ConfigFileEntry.default_ident_timeout)
+		GlobalSetOptions.ident_timeout = ConfigFileEntry.default_ident_timeout;
+	else
+		GlobalSetOptions.ident_timeout = IDENT_TIMEOUT;
 
-	strlcpy(GlobalSetOptions.operstring,
+	rb_strlcpy(GlobalSetOptions.operstring,
 		ConfigFileEntry.default_operstring,
 		sizeof(GlobalSetOptions.operstring));
-	strlcpy(GlobalSetOptions.adminstring,
+	rb_strlcpy(GlobalSetOptions.adminstring,
 		ConfigFileEntry.default_adminstring,
 		sizeof(GlobalSetOptions.adminstring));
 
@@ -430,8 +441,85 @@ setup_corefile(void)
 #endif
 }
 
+static void
+ircd_log_cb(const char *str)
+{
+	ilog(L_MAIN, "libratbox reports: %s", str);
+}
+
+static void
+ircd_restart_cb(const char *str)
+{
+	inotice("libratbox has called the restart callback: %s", str);
+	restart(str);
+}
+
+/*
+ * Why EXIT_FAILURE here?
+ * Because if ircd_die_cb() is called it's because of a fatal
+ * error inside libcharybdis, and we don't know how to handle the
+ * exception, so it is logical to return a FAILURE exit code here.
+ *    --nenolod
+ */
+static void
+ircd_die_cb(const char *str)
+{
+	if(str != NULL)
+	{
+		/* Try to get the message out to currently logged in operators. */
+		sendto_realops_snomask(SNO_GENERAL, L_NETWIDE, "libratbox has called the die callback..aborting: %s", str);
+		inotice("libratbox has called the die callback..aborting: %s", str);
+	}
+	else
+		inotice("libratbox has called the die callback..aborting");
+
+	unlink(pidFileName);
+	exit(EXIT_FAILURE);
+}
+
 struct ev_entry *check_splitmode_ev = NULL;
 
+static int
+seed_with_urandom(void)
+{
+	unsigned int seed;
+	int fd;
+
+	fd = open("/dev/urandom", O_RDONLY);
+	if(fd >= 0)
+	{
+		if(read(fd, &seed, sizeof(seed)) == sizeof(seed))
+		{
+			close(fd);
+			srand(seed);
+			return 1;
+		}
+	}
+	return 0;
+}
+
+static void
+seed_with_clock(void)
+{
+ 	const struct timeval *tv;	
+	rb_set_time();
+	tv = rb_current_time_tv();
+	srand(tv->tv_sec ^ (tv->tv_usec | (getpid() << 20)));
+}
+
+static void
+seed_random(void *unused)
+{
+	unsigned int seed;
+	if(rb_get_random(&seed, sizeof(seed)) == -1)
+	{
+		if(!seed_with_urandom())
+			seed_with_clock();
+		return;
+	}
+	srand(seed);
+}
+
 /*
  * main
  *
@@ -453,18 +541,30 @@ main(int argc, char *argv[])
 		return -1;
 	}
 
-	/*
-	 * save server boot time right away, so getrusage works correctly
-	 */
-	set_time();
+	init_sys();
+
+	ConfigFileEntry.dpath = DPATH;
+	ConfigFileEntry.configfile = CPATH;	/* Server configuration file */
+	ConfigFileEntry.connect_timeout = 30;	/* Default to 30 */
+	
+	umask(077);		/* better safe than sorry --SRB */
+
+	myargv = argv;
+	parseargs(&argc, &argv, myopts);
+
+	if(chdir(ConfigFileEntry.dpath))
+	{
+		fprintf(stderr, "Unable to chdir to %s: %s\n", ConfigFileEntry.dpath, strerror(errno));
+		exit(EXIT_FAILURE);
+	}
+
+	rb_set_time();
+
 	/*
 	 * Setup corefile size immediately after boot -kre
 	 */
 	setup_corefile();
 
-	ServerRunning = 0;
-	/* It ain't random, but it ought to be a little harder to guess */
-	srand(SystemTime.tv_sec ^ (SystemTime.tv_usec | (getpid() << 20)));
 	memset(&me, 0, sizeof(me));
 	memset(&meLocalUser, 0, sizeof(meLocalUser));
 	me.localClient = &meLocalUser;
@@ -479,42 +579,24 @@ main(int argc, char *argv[])
 
 	rb_dlinkAddTail(&me, &me.node, &global_client_list);
 
-	memset((void *) &Count, 0, sizeof(Count));
-	memset((void *) &ServerInfo, 0, sizeof(ServerInfo));
-	memset((void *) &AdminInfo, 0, sizeof(AdminInfo));
+	memset(&Count, 0, sizeof(Count));
+	memset(&ServerInfo, 0, sizeof(ServerInfo));
+	memset(&AdminInfo, 0, sizeof(AdminInfo));
+	memset(&ServerStats, 0, sizeof(struct ServerStatistics));
 
 	/* Initialise the channel capability usage counts... */
 	init_chcap_usage_counts();
 
-	ConfigFileEntry.dpath = DPATH;
-	ConfigFileEntry.configfile = CPATH;	/* Server configuration file */
-	ConfigFileEntry.klinefile = KPATH;	/* Server kline file */
-	ConfigFileEntry.dlinefile = DLPATH;	/* dline file */
-	ConfigFileEntry.xlinefile = XPATH;
-	ConfigFileEntry.resvfile = RESVPATH;
-	ConfigFileEntry.connect_timeout = 30;	/* Default to 30 */
-	myargv = argv;
-	umask(077);		/* better safe than sorry --SRB */
-
-	parseargs(&argc, &argv, myopts);
-
 	if(printVersion)
 	{
-		printf("ircd: version %s\n", ircd_version);
+		printf("ircd: version %s(%s)\n", ircd_version, serno);
+		printf("ircd: %s\n", rb_lib_version());
 		exit(EXIT_SUCCESS);
 	}
 
-	if(chdir(ConfigFileEntry.dpath))
-	{
-		fprintf(stderr, "Unable to chdir to %s: %s\n", ConfigFileEntry.dpath, strerror(errno));
-		exit(EXIT_FAILURE);
-	}
 
-	setup_signals();
 
-#ifdef __CYGWIN__
-	server_state_foreground = 1;
-#endif
+	setup_signals();
 
 	if (testing_conf)
 		server_state_foreground = 1;
@@ -537,13 +619,21 @@ main(int argc, char *argv[])
 		if(!server_state_foreground)
 			make_daemon();
 		inotice("starting %s ...", ircd_version);
+		inotice("%s", rb_lib_version());
 	}
 
 	/* Init the event subsystem */
-	init_sys();
 	rb_lib_init(ircd_log_cb, ircd_restart_cb, ircd_die_cb, !server_state_foreground, maxconnections, DNODE_HEAP_SIZE, FD_HEAP_SIZE);
 	rb_linebuf_init(LINEBUF_HEAP_SIZE);
 
+	if(ConfigFileEntry.use_egd && (ConfigFileEntry.egdpool_path != NULL))
+	{
+		rb_init_prng(ConfigFileEntry.egdpool_path, RB_PRNG_EGD);
+	} else
+		rb_init_prng(NULL, RB_PRNG_DEFAULT);
+
+	seed_random(NULL);
+
 	init_main_logfile();
 	newconf_init();
 	init_s_conf();
@@ -553,33 +643,39 @@ main(int argc, char *argv[])
 	init_host_hash();
 	clear_hash_parse();
 	init_client();
-	initUser();
 	init_hook();
 	init_channels();
 	initclass();
 	initwhowas();
-	init_stats();
 	init_reject();
 	init_cache();
 	init_monitor();
 	init_isupport();
+
+        construct_cflags_strings();
+
 	load_all_modules(1);
 #ifndef STATIC_MODULES
 	load_core_modules(1);
 #endif
 	init_auth();		/* Initialise the auth code */
 	init_resolver();	/* Needs to be setup before the io loop */
+	privilegeset_set_new("default", "", 0);
 
 	if (testing_conf)
 		fprintf(stderr, "\nBeginning config test\n");
 	read_conf_files(YES);	/* cold start init conf files */
-	rehash_bans(0);
 #ifndef STATIC_MODULES
 
 	mod_add_path(MODULE_DIR); 
 	mod_add_path(MODULE_DIR "/autoload"); 
 #endif
 
+	init_bandb();
+	init_ssld();
+
+	rehash_bans(0);
+
 	initialize_server_capabs();	/* Set up default_server_capabs */
 	initialize_global_set_options();
 
@@ -588,7 +684,7 @@ main(int argc, char *argv[])
 		ierror("no server name specified in serverinfo block.");
 		return -1;
 	}
-	strlcpy(me.name, ServerInfo.name, sizeof(me.name));
+	rb_strlcpy(me.name, ServerInfo.name, sizeof(me.name));
 
 	if(ServerInfo.sid[0] == '\0')
 	{
@@ -604,7 +700,19 @@ main(int argc, char *argv[])
 		ierror("no server description specified in serverinfo block.");
 		return -3;
 	}
-	strlcpy(me.info, ServerInfo.description, sizeof(me.info));
+	rb_strlcpy(me.info, ServerInfo.description, sizeof(me.info));
+
+	if(ServerInfo.ssl_cert != NULL && ServerInfo.ssl_private_key != NULL)
+	{
+		/* just do the rb_setup_ssl_server to validate the config */
+		if(!rb_setup_ssl_server(ServerInfo.ssl_cert, ServerInfo.ssl_private_key, ServerInfo.ssl_dh_params))
+		{
+			ilog(L_MAIN, "WARNING: Unable to setup SSL.");
+			ssl_ok = 0;
+		}
+		else
+			ssl_ok = 1;
+	}
 
 	if (testing_conf)
 	{
@@ -633,31 +741,22 @@ main(int argc, char *argv[])
 
 	ilog(L_MAIN, "Server Ready");
 
-	rb_event_addish("cleanup_glines", cleanup_glines, NULL, CLEANUP_GLINES_TIME);
-
 	/* We want try_connections to be called as soon as possible now! -- adrian */
 	/* No, 'cause after a restart it would cause all sorts of nick collides */
 	/* um.  by waiting even longer, that just means we have even *more*
 	 * nick collisions.  what a stupid idea. set an event for the IO loop --fl
 	 */
 	rb_event_addish("try_connections", try_connections, NULL, STARTUP_CONNECTIONS_TIME);
-	rb_event_addonce("try_connections_startup", try_connections, NULL, 0);
-
-	rb_event_addish("collect_zipstats", collect_zipstats, NULL, ZIPSTATS_TIME);
-
-	/* Setup the timeout check. I'll shift it later :)  -- adrian */
-	rb_event_addish("rb_checktimeouts", rb_checktimeouts, NULL, 1);
-
-	rb_event_add("check_rehash", check_rehash, NULL, 1);
+	rb_event_addonce("try_connections_startup", try_connections, NULL, 2);
+	rb_event_add("check_rehash", check_rehash, NULL, 3);
+	rb_event_addish("reseed_srand", seed_random, NULL, 300); /* reseed every 10 minutes */
 
 	if(splitmode)
-		check_splitmode_ev = rb_event_add("check_splitmode", check_splitmode, NULL, 2);
-
-	ServerRunning = 1;
+		check_splitmode_ev = rb_event_add("check_splitmode", check_splitmode, NULL, 5);
 
 	print_startup(getpid());
 
-	rb_lib_loop(250);
+	rb_lib_loop(0);
 
 	return 0;
 }