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Comparing ircd-hybrid/trunk/src/ircd.c (file contents):
Revision 1592 by michael, Sat Oct 27 21:02:32 2012 UTC vs.
Revision 4106 by michael, Mon Jun 30 15:50:11 2014 UTC

# Line 1 | Line 1
1   /*
2 < *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3 < *  ircd.c: Starts up and runs the ircd.
2 > *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3   *
4 < *  Copyright (C) 2002 by the past and present ircd coders, and others.
4 > *  Copyright (c) 1997-2014 ircd-hybrid development team
5   *
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
# Line 18 | Line 17
17   *  along with this program; if not, write to the Free Software
18   *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
19   *  USA
20 < *
21 < *  $Id$
20 > */
21 >
22 > /*! \file ircd.c
23 > * \brief Starts up and runs the ircd.
24 > * \version $Id$
25   */
26  
27   #include "stdinc.h"
28 < #include "s_user.h"
28 > #include "user.h"
29   #include "list.h"
30   #include "ircd.h"
31   #include "channel.h"
30 #include "channel_mode.h"
32   #include "client.h"
33   #include "event.h"
34   #include "fdlist.h"
35   #include "hash.h"
36   #include "irc_string.h"
37   #include "ircd_signal.h"
38 < #include "s_gline.h"
38 > #include "gline.h"
39   #include "motd.h"
40 + #include "conf.h"
41   #include "hostmask.h"
40 #include "numeric.h"
41 #include "packet.h"
42   #include "parse.h"
43 < #include "irc_res.h"
43 > #include "res.h"
44   #include "restart.h"
45   #include "rng_mt.h"
46 < #include "s_auth.h"
46 > #include "auth.h"
47   #include "s_bsd.h"
48 #include "conf.h"
48   #include "log.h"
49 < #include "s_misc.h"
51 < #include "s_serv.h"      /* try_connections */
49 > #include "server.h"      /* try_connections */
50   #include "send.h"
51   #include "whowas.h"
52   #include "modules.h"
53   #include "memory.h"
54 < #include "hook.h"
54 > #include "mempool.h"
55   #include "ircd_getopt.h"
58 #include "balloc.h"
59 #include "motd.h"
60 #include "supported.h"
56   #include "watch.h"
57 + #include "conf_db.h"
58 + #include "conf_class.h"
59  
60  
61 < /* /quote set variables */
62 < struct SetOptions GlobalSetOptions;
61 > #ifdef HAVE_LIBGEOIP
62 > GeoIP *geoip_ctx;
63 > #endif
64  
67 /* configuration set from ircd.conf */
68 struct config_file_entry ConfigFileEntry;
69 /* server info set from ircd.conf */
70 struct server_info ServerInfo;
71 /* admin info set from ircd.conf */
72 struct admin_info AdminInfo = { NULL, NULL, NULL };
73 struct Counter Count = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 };
74 struct ServerState_t server_state = { 0 };
75 struct logging_entry ConfigLoggingEntry = { .use_logging = 1 };
65   struct ServerStatistics ServerStats;
66   struct timeval SystemTime;
67   struct Client me;             /* That's me */
# Line 89 | Line 78 | int doremotd = 0;
78   /* Set to zero because it should be initialized later using
79   * initialize_server_capabs
80   */
81 < int default_server_capabs = 0;
81 > unsigned int default_server_capabs;
82   unsigned int splitmode;
83   unsigned int splitchecking;
84   unsigned int split_users;
85   unsigned int split_servers;
86  
87 < /* Do klines the same way hybrid-6 did them, i.e. at the
88 < * top of the next io_loop instead of in the same loop as
89 < * the klines are being applied.
90 < *
91 < * This should fix strange CPU starvation as very indirectly reported.
92 < * (Why do you people not email bug reports? WHY? WHY?)
93 < *
94 < * - Dianora
95 < */
87 > static struct event event_cleanup_glines =
88 > {
89 >  .name = "cleanup_glines",
90 >  .handler = cleanup_glines,
91 >  .when = CLEANUP_GLINES_TIME
92 > };
93 >
94 > static struct event event_cleanup_tklines =
95 > {
96 >  .name = "cleanup_tklines",
97 >  .handler = cleanup_tklines,
98 >  .when = CLEANUP_TKLINES_TIME
99 > };
100 >
101 > static struct event event_try_connections =
102 > {
103 >  .name = "try_connections",
104 >  .handler = try_connections,
105 >  .when = STARTUP_CONNECTIONS_TIME
106 > };
107 >
108 > static struct event event_comm_checktimeouts =
109 > {
110 >  .name = "comm_checktimeouts",
111 >  .handler = comm_checktimeouts,
112 >  .when = 1
113 > };
114  
115 < int rehashed_klines = 0;
115 > static struct event event_save_all_databases =
116 > {
117 >  .name = "save_all_databases",
118 >  .handler = save_all_databases,
119 >  .when = DATABASE_UPDATE_TIMEOUT
120 > };
121 >
122 > struct event event_write_links_file =
123 > {
124 >  .name = "write_links_file",
125 >  .handler = write_links_file,
126 > };
127  
128 + struct event event_check_splitmode =
129 + {
130 +  .name = "check_splitmode",
131 +  .handler = check_splitmode,
132 +  .when = 60
133 + };
134  
135   /*
136   * print_startup - print startup information
# Line 114 | Line 138 | int rehashed_klines = 0;
138   static void
139   print_startup(int pid)
140   {
141 <  printf("ircd: version %s\n", ircd_version);
141 >  printf("ircd: version %s(%s)\n", ircd_version, serno);
142    printf("ircd: pid %d\n", pid);
143    printf("ircd: running in %s mode from %s\n", !server_state.foreground ? "background"
144           : "foreground", ConfigFileEntry.dpath);
# Line 141 | Line 165 | make_daemon(void)
165  
166   static int printVersion = 0;
167  
168 < static struct lgetopt myopts[] = {
169 <  {"dlinefile",  &ConfigFileEntry.dlinefile,
170 <   STRING, "File to use for dline.conf"},
147 <  {"configfile", &ConfigFileEntry.configfile,
168 > static struct lgetopt myopts[] =
169 > {
170 >  {"configfile", &ConfigFileEntry.configfile,
171     STRING, "File to use for ircd.conf"},
172 <  {"klinefile",  &ConfigFileEntry.klinefile,
173 <   STRING, "File to use for kline.conf"},
174 <  {"xlinefile",  &ConfigFileEntry.xlinefile,
175 <   STRING, "File to use for xline.conf"},
176 <  {"logfile",    &logFileName,
172 >  {"glinefile",  &ConfigFileEntry.glinefile,
173 >   STRING, "File to use for gline database"},
174 >  {"klinefile",  &ConfigFileEntry.klinefile,
175 >   STRING, "File to use for kline database"},
176 >  {"dlinefile",  &ConfigFileEntry.dlinefile,
177 >   STRING, "File to use for dline database"},
178 >  {"xlinefile",  &ConfigFileEntry.xlinefile,
179 >   STRING, "File to use for xline database"},
180 >  {"resvfile",  &ConfigFileEntry.resvfile,
181 >   STRING, "File to use for resv database"},
182 >  {"logfile",    &logFileName,
183     STRING, "File to use for ircd.log"},
184    {"pidfile",    &pidFileName,
185     STRING, "File to use for process ID"},
186 <  {"foreground", &server_state.foreground,
186 >  {"foreground", &server_state.foreground,
187     YESNO, "Run in foreground (don't detach)"},
188 <  {"version",    &printVersion,
188 >  {"version",    &printVersion,
189     YESNO, "Print version and exit"},
190    {"help", NULL, USAGE, "Print this text"},
191    {NULL, NULL, STRING, NULL},
# Line 165 | Line 194 | static struct lgetopt myopts[] = {
194   void
195   set_time(void)
196   {
197 <  static char to_send[200];
169 <  struct timeval newtime;
170 <  newtime.tv_sec  = 0;
171 <  newtime.tv_usec = 0;
197 >  struct timeval newtime = { .tv_sec = 0, .tv_usec = 0 };
198  
199    if (gettimeofday(&newtime, NULL) == -1)
200    {
201      ilog(LOG_TYPE_IRCD, "Clock Failure (%s), TS can be corrupted",
202           strerror(errno));
203 <    sendto_realops_flags(UMODE_ALL, L_ALL,
203 >    sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
204                           "Clock Failure (%s), TS can be corrupted",
205                           strerror(errno));
206 <    restart("Clock Failure");
206 >    server_die("Clock Failure", 1);
207    }
208  
209    if (newtime.tv_sec < CurrentTime)
210    {
211 <    snprintf(to_send, sizeof(to_send),
212 <             "System clock is running backwards - (%lu < %lu)",
213 <             (unsigned long)newtime.tv_sec, (unsigned long)CurrentTime);
214 <    report_error(L_ALL, to_send, me.name, 0);
211 >    ilog(LOG_TYPE_IRCD, "System clock is running backwards - (%lu < %lu)",
212 >         (unsigned long)newtime.tv_sec, (unsigned long)CurrentTime);
213 >    sendto_realops_flags(UMODE_DEBUG, L_ALL, SEND_NOTICE,
214 >                         "System clock is running backwards - (%lu < %lu)",
215 >                         (unsigned long)newtime.tv_sec,
216 >                         (unsigned long)CurrentTime);
217      set_back_events(CurrentTime - newtime.tv_sec);
218    }
219  
# Line 196 | Line 224 | set_time(void)
224   static void
225   io_loop(void)
226   {
227 <  while (1 == 1)
227 >  while (1)
228    {
201    /*
202     * Maybe we want a flags word?
203     * ie. if (REHASHED_KLINES(global_flags))
204     * SET_REHASHED_KLINES(global_flags)
205     * CLEAR_REHASHED_KLINES(global_flags)
206     *
207     * - Dianora
208     */
209    if (rehashed_klines)
210    {
211      check_conf_klines();
212      rehashed_klines = 0;
213    }
214
229      if (listing_client_list.head)
230      {
231        dlink_node *ptr = NULL, *ptr_next = NULL;
232        DLINK_FOREACH_SAFE(ptr, ptr_next, listing_client_list.head)
233 <      {
220 <        struct Client *client_p = ptr->data;
221 <        assert(client_p->localClient->list_task);
222 <        safe_list_channels(client_p, client_p->localClient->list_task, 0);
223 <      }
233 >        safe_list_channels(ptr->data, 0);
234      }
235  
236 <    /* Run pending events, then get the number of seconds to the next
237 <     * event
228 <     */
229 <    while (eventNextTime() <= CurrentTime)
230 <      eventRun();
236 >    /* Run pending events */
237 >    event_run();
238  
239      comm_select();
240      exit_aborted_clients();
241      free_exited_clients();
235    send_queued_all();
242  
243      /* Check to see whether we have to rehash the configuration .. */
244      if (dorehash)
# Line 240 | Line 246 | io_loop(void)
246        rehash(1);
247        dorehash = 0;
248      }
249 +
250      if (doremotd)
251      {
252 <      read_message_file(&ConfigFileEntry.motd);
253 <      sendto_realops_flags(UMODE_ALL, L_ALL,
254 <                           "Got signal SIGUSR1, reloading ircd motd file");
252 >      motd_recache();
253 >      sendto_realops_flags(UMODE_ALL, L_ALL, SEND_NOTICE,
254 >                           "Got signal SIGUSR1, reloading motd file(s)");
255        doremotd = 0;
256      }
257    }
# Line 254 | Line 261 | io_loop(void)
261   *
262   * inputs       - none
263   * output       - none
264 < * side effects - This sets all global set options needed
264 > * side effects - This sets all global set options needed
265   */
266   static void
267   initialize_global_set_options(void)
# Line 288 | Line 295 | initialize_global_set_options(void)
295    /* End of global set options */
296   }
297  
291 /* initialize_message_files()
292 *
293 * inputs       - none
294 * output       - none
295 * side effects - Set up all message files needed, motd etc.
296 */
297 static void
298 initialize_message_files(void)
299 {
300  init_message_file(USER_MOTD, MPATH, &ConfigFileEntry.motd);
301  init_message_file(USER_LINKS, LIPATH, &ConfigFileEntry.linksfile);
302
303  read_message_file(&ConfigFileEntry.motd);
304  read_message_file(&ConfigFileEntry.linksfile);
305
306  init_isupport();
307 }
308
298   /* initialize_server_capabs()
299   *
300   * inputs       - none
# Line 319 | Line 308 | initialize_server_capabs(void)
308    add_capability("TS6", CAP_TS6, 0);
309    add_capability("CLUSTER", CAP_CLUSTER, 1);
310    add_capability("SVS", CAP_SVS, 1);
311 < #ifdef HALFOPS
311 >  add_capability("CHW", CAP_CHW, 1);
312    add_capability("HOPS", CAP_HOPS, 1);
324 #endif
313   }
314  
315   /* write_pidfile()
# Line 337 | Line 325 | write_pidfile(const char *filename)
325  
326    if ((fb = fopen(filename, "w")))
327    {
328 <    char buff[32];
328 >    char buff[IRCD_BUFSIZE];
329      unsigned int pid = (unsigned int)getpid();
330  
331      snprintf(buff, sizeof(buff), "%u\n", pid);
# Line 366 | Line 354 | static void
354   check_pidfile(const char *filename)
355   {
356    FILE *fb;
357 <  char buff[32];
357 >  char buff[IRCD_BUFSIZE];
358    pid_t pidfromfile;
359  
360    /* Don't do logging here, since we don't have log() initialised */
# Line 420 | Line 408 | setup_corefile(void)
408   #endif
409   }
410  
411 + #ifdef HAVE_LIBCRYPTO
412 + static int
413 + always_accept_verify_cb(int preverify_ok, X509_STORE_CTX *x509_ctx)
414 + {
415 +  return 1;
416 + }
417 + #endif
418 +
419   /* init_ssl()
420   *
421   * inputs       - nothing
# Line 427 | Line 423 | setup_corefile(void)
423   * side effects - setups SSL context.
424   */
425   static void
426 < init_ssl(void)
426 > ssl_init(void)
427   {
428   #ifdef HAVE_LIBCRYPTO
429 +  const unsigned char session_id[] = "ircd-hybrid";
430 +
431    SSL_load_error_strings();
432    SSLeay_add_ssl_algorithms();
433  
# Line 443 | Line 441 | init_ssl(void)
441    }
442  
443    SSL_CTX_set_options(ServerInfo.server_ctx, SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1);
444 <  SSL_CTX_set_options(ServerInfo.server_ctx, SSL_OP_TLS_ROLLBACK_BUG|SSL_OP_ALL);
445 <  SSL_CTX_set_verify(ServerInfo.server_ctx, SSL_VERIFY_NONE, NULL);
444 >  SSL_CTX_set_options(ServerInfo.server_ctx, SSL_OP_TLS_ROLLBACK_BUG);
445 >  SSL_CTX_set_verify(ServerInfo.server_ctx, SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,
446 >                     always_accept_verify_cb);
447 >  SSL_CTX_set_session_id_context(ServerInfo.server_ctx, session_id, sizeof(session_id) - 1);
448 >
449 > #if OPENSSL_VERSION_NUMBER >= 0x1000005FL && !defined(OPENSSL_NO_ECDH)
450 >  {
451 >    EC_KEY *key = EC_KEY_new_by_curve_name(NID_X9_62_prime256v1);
452 >
453 >    if (key)
454 >    {
455 >      SSL_CTX_set_tmp_ecdh(ServerInfo.server_ctx, key);
456 >      EC_KEY_free(key);
457 >    }
458 >  }
459 >
460 >  SSL_CTX_set_options(ServerInfo.server_ctx, SSL_OP_SINGLE_ECDH_USE);
461 > #endif
462  
463    if ((ServerInfo.client_ctx = SSL_CTX_new(SSLv23_client_method())) == NULL)
464    {
# Line 456 | Line 470 | init_ssl(void)
470    }
471  
472    SSL_CTX_set_options(ServerInfo.client_ctx, SSL_OP_NO_SSLv2|SSL_OP_NO_SSLv3|SSL_OP_NO_TLSv1);
473 <  SSL_CTX_set_options(ServerInfo.client_ctx, SSL_OP_TLS_ROLLBACK_BUG|SSL_OP_ALL);
474 <  SSL_CTX_set_verify(ServerInfo.client_ctx, SSL_VERIFY_NONE, NULL);
473 >  SSL_CTX_set_options(ServerInfo.client_ctx, SSL_OP_TLS_ROLLBACK_BUG);
474 >  SSL_CTX_set_verify(ServerInfo.client_ctx, SSL_VERIFY_PEER|SSL_VERIFY_CLIENT_ONCE,
475 >                     always_accept_verify_cb);
476   #endif /* HAVE_LIBCRYPTO */
477   }
478  
464 /* init_callbacks()
465 *
466 * inputs       - nothing
467 * output       - nothing
468 * side effects - setups standard hook points
469 */
470 static void
471 init_callbacks(void)
472 {
473  iorecv_cb = register_callback("iorecv", iorecv_default);
474  iosend_cb = register_callback("iosend", iosend_default);
475 }
476
479   int
480   main(int argc, char *argv[])
481   {
482 <  /* Check to see if the user is running
481 <   * us as root, which is a nono
482 <   */
482 >  /* Check to see if the user is running us as root, which is a nono */
483    if (geteuid() == 0)
484    {
485 <    fprintf(stderr, "Don't run ircd as root!!!\n");
485 >    fprintf(stderr, "ERROR: This server won't run as root/superuser\n");
486      return -1;
487    }
488  
# Line 496 | Line 496 | main(int argc, char *argv[])
496    init_genrand(SystemTime.tv_sec ^ (SystemTime.tv_usec | (getpid() << 20)));
497  
498    me.localClient = &meLocalUser;
499 <  dlinkAdd(&me, &me.node, &global_client_list); /* Pointer to beginning
499 >  dlinkAdd(&me, &me.node, &global_client_list);  /* Pointer to beginning
500                                                     of Client list */
501 <  /* Initialise the channel capability usage counts... */
502 <  init_chcap_usage_counts();
503 <
501 >  ConfigLoggingEntry.use_logging = 1;
502    ConfigFileEntry.dpath      = DPATH;
503 <  ConfigFileEntry.configfile = CPATH;  /* Server configuration file */
504 <  ConfigFileEntry.klinefile  = KPATH;  /* Server kline file         */
505 <  ConfigFileEntry.xlinefile  = XPATH;  /* Server xline file         */
506 <  ConfigFileEntry.dlinefile  = DLPATH; /* dline file                */
507 <  ConfigFileEntry.cresvfile  = CRESVPATH; /* channel resv file      */
508 <  ConfigFileEntry.nresvfile  = NRESVPATH; /* nick resv file         */
503 >  ConfigFileEntry.spath      = SPATH;
504 >  ConfigFileEntry.mpath      = MPATH;
505 >  ConfigFileEntry.configfile = CPATH;    /* Server configuration file */
506 >  ConfigFileEntry.klinefile  = KPATH;    /* Server kline file         */
507 >  ConfigFileEntry.glinefile  = GPATH;    /* Server gline file         */
508 >  ConfigFileEntry.xlinefile  = XPATH;    /* Server xline file         */
509 >  ConfigFileEntry.dlinefile  = DLPATH;   /* dline file                */
510 >  ConfigFileEntry.resvfile   = RESVPATH; /* resv file                 */
511 >
512    myargv = argv;
513    umask(077);                /* better safe than sorry --SRB */
514  
# Line 515 | Line 516 | main(int argc, char *argv[])
516  
517    if (printVersion)
518    {
519 <    printf("ircd: version %s\n", ircd_version);
519 >    printf("ircd: version %s(%s)\n", ircd_version, serno);
520      exit(EXIT_SUCCESS);
521    }
522  
# Line 525 | Line 526 | main(int argc, char *argv[])
526      exit(EXIT_FAILURE);
527    }
528  
529 <  init_ssl();
529 >  ssl_init();
530  
531    if (!server_state.foreground)
532    {
# Line 537 | Line 538 | main(int argc, char *argv[])
538  
539    setup_signals();
540  
540  /* Init the event subsystem */
541  eventInit();
541    /* We need this to initialise the fd array before anything else */
542    fdlist_init();
543 <  log_add_file(LOG_TYPE_IRCD, 0, logFileName);
543 >  log_set_file(LOG_TYPE_IRCD, 0, logFileName);
544    check_can_use_v6();
545 <  init_comm();         /* This needs to be setup early ! -- adrian */
545 >  init_netio();         /* This needs to be setup early ! -- adrian */
546 >
547    /* Check if there is pidfile and daemon already running */
548    check_pidfile(pidFileName);
549  
550 <  initBlockHeap();
550 >  mp_pool_init();
551    init_dlink_nodes();
552 <  init_callbacks();
553 <  initialize_message_files();
552 >  init_isupport();
553    dbuf_init();
554 <  init_hash();
554 >  hash_init();
555    init_ip_hash_table();      /* client host ip hash table */
556    init_host_hash();          /* Host-hashtable. */
557 <  init_client();
558 <  init_class();
557 >  client_init();
558 >  class_init();
559    whowas_init();
560    watch_init();
561 <  init_auth();          /* Initialise the auth code */
561 >  auth_init();          /* Initialise the auth code */
562    init_resolver();      /* Needs to be setup before the io loop */
563    modules_init();
564    read_conf_files(1);   /* cold start init conf files */
565    init_uid();
566    initialize_server_capabs();   /* Set up default_server_capabs */
567    initialize_global_set_options();
568 <  init_channels();
568 >  channel_init();
569 >  read_links_file();
570 >  motd_init();
571 > #ifdef HAVE_LIBGEOIP
572 >  geoip_ctx = GeoIP_new(GEOIP_MEMORY_CACHE);
573 > #endif
574  
575    if (EmptyString(ServerInfo.sid))
576    {
# Line 604 | Line 608 | main(int argc, char *argv[])
608  
609    hash_add_id(&me);
610    hash_add_client(&me);
611 <  
611 >
612    /* add ourselves to global_serv_list */
613    dlinkAdd(&me, make_dlink_node(), &global_serv_list);
614  
615 +  load_kline_database();
616 +  load_dline_database();
617 +  load_gline_database();
618 +  load_xline_database();
619 +  load_resv_database();
620 +
621    if (chdir(MODPATH))
622    {
623      ilog(LOG_TYPE_IRCD, "Could not load core modules. Terminating!");
# Line 635 | Line 645 | main(int argc, char *argv[])
645  
646    ilog(LOG_TYPE_IRCD, "Server Ready");
647  
648 <  eventAddIsh("cleanup_glines", cleanup_glines, NULL, CLEANUP_GLINES_TIME);
649 <  eventAddIsh("cleanup_tklines", cleanup_tklines, NULL, CLEANUP_TKLINES_TIME);
648 >  event_addish(&event_cleanup_glines, NULL);
649 >  event_addish(&event_cleanup_tklines, NULL);
650  
651    /* We want try_connections to be called as soon as possible now! -- adrian */
652    /* No, 'cause after a restart it would cause all sorts of nick collides */
653 <  eventAddIsh("try_connections", try_connections, NULL, STARTUP_CONNECTIONS_TIME);
653 >  event_addish(&event_try_connections, NULL);
654  
655    /* Setup the timeout check. I'll shift it later :)  -- adrian */
656 <  eventAddIsh("comm_checktimeouts", comm_checktimeouts, NULL, 1);
656 >  event_addish(&event_comm_checktimeouts, NULL);
657 >
658 >  event_addish(&event_save_all_databases, NULL);
659  
660    if (ConfigServerHide.links_delay > 0)
661 <    eventAddIsh("write_links_file", write_links_file, NULL, ConfigServerHide.links_delay);
661 >  {
662 >    event_write_links_file.when = ConfigServerHide.links_delay;
663 >    event_addish(&event_write_links_file, NULL);
664 >  }
665    else
666      ConfigServerHide.links_disabled = 1;
667  
668    if (splitmode)
669 <    eventAddIsh("check_splitmode", check_splitmode, NULL, 60);
669 >    event_addish(&event_check_splitmode, NULL);
670  
671    io_loop();
672    return 0;

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