2 * ircd_parser.y: A yacc/bison parser for ircd config files.
3 * This is part of ircu, an Internet Relay Chat server.
4 * The contents of this file are Copyright(C) 2001 by Andrew Miller, the
5 * ircd-hybrid team and the ircu team.
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
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307,
29 #include "ircd_features.h"
34 #include "ircd_alloc.h"
35 #include "ircd_chattr.h"
37 #include "ircd_reply.h"
38 #include "ircd_snprintf.h"
39 #include "ircd_string.h"
59 #include <arpa/inet.h>
60 #define MAX_STRINGS 80 /* Maximum number of feature params. */
61 extern struct LocalConf localConf;
62 extern struct DenyConf* denyConfList;
63 extern struct CRuleConf* cruleConfList;
64 extern struct ServerConf* serverConfList;
67 /* Now all the globals we need :/... */
68 int tping, tconn, maxlinks, sendq, port;
70 char *name, *pass, *host;
71 char *stringlist[MAX_STRINGS];
72 struct ConnectionClass *class;
73 struct ConfItem *aconf;
74 struct DenyConf *dconf;
75 struct ServerConf *sconf;
137 /* and now a lot of priviledges... */
138 %token TPRIV_CHAN_LIMIT, TPRIV_MODE_LCHAN, TPRIV_DEOP_LCHAN, TPRIV_WALK_LCHAN
139 %token TPRIV_KILL, TPRIV_LOCAL_KILL, TPRIV_REHASH, TPRIV_RESTART, TPRIV_DIE
140 %token TPRIV_GLINE, TPRIV_LOCAL_GLINE, TPRIV_JUPE, TPRIV_LOCAL_JUPE
141 %token TPRIV_LOCAL_OPMODE, TPRIV_OPMODE, TPRIV_SET, TPRIV_WHOX, TPRIV_BADCHAN
142 %token TPRIV_LOCAL_BADCHAN
143 %token TPRIV_SEE_CHAN, TPRIV_SHOW_INVIS, TPRIV_SHOW_ALL_INVIS, TPRIV_PROPAGATE
144 %token TPRIV_UNLIMIT_QUERY, TPRIV_DISPLAY, TPRIV_SEE_OPERS, TPRIV_WIDE_GLINE
145 /* and some types... */
147 %type <num> timespec, timefactor, factoredtimes, factoredtime
148 %type <num> expr, yesorno, privtype
158 /* Blocks in the config file... */
159 blocks: blocks block | block;
160 block: adminblock | generalblock | classblock | connectblock |
161 serverblock | operblock | portblock | jupeblock | clientblock |
162 killblock | cruleblock | motdblock | featuresblock;
164 /* The timespec, sizespec and expr was ripped straight from
166 timespec: expr | factoredtimes;
168 factoredtimes: factoredtimes factoredtime
173 factoredtime: expr timefactor
178 timefactor: SECONDS { $$ = 1; }
179 | MINUTES { $$ = 60; }
180 | HOURS { $$ = 60 * 60; }
181 | DAYS { $$ = 60 * 60 * 24; }
182 | WEEKS { $$ = 60 * 60 * 24 * 7; }
183 | MONTHS { $$ = 60 * 60 * 24 * 7 * 4; }
184 | YEARS { $$ = 60 * 60 * 24 * 365; }
185 | DECADES { $$ = 60 * 60 * 24 * 365 * 10; };
202 $$ = $1 * 1024 * 1024;
206 $$ = $1 * 1024 * 1024 * 1024;
210 $$ = $1 * 1024 * 1024 * 1024;
214 /* this is an arithmatic expression */
235 /* leave this out until we find why it makes BSD yacc dump core -larne
246 jupeblock: JUPE '{' jupeitems '}' ';' ;
247 jupeitems: jupeitem jupeitems | jupeitem;
249 jupenick: NICK '=' QSTRING
251 addNickJupes(yylval.text);
254 generalblock: GENERAL '{' generalitems '}' ';' ;
255 generalitems: generalitem generalitems | generalitem;
256 generalitem: generalnumeric | generalname | generalvhost | generaldesc;
257 generalnumeric: NUMERIC '=' NUMBER ';'
259 if (localConf.numeric == 0)
260 localConf.numeric = yylval.num;
263 generalname: NAME '=' QSTRING ';'
265 if (localConf.name == NULL)
266 DupString(localConf.name, yylval.text);
269 generaldesc: DESCRIPTION '=' QSTRING ';'
271 MyFree(localConf.description);
272 DupString(localConf.description, yylval.text);
273 ircd_strncpy(cli_info(&me), yylval.text, REALLEN);
276 generalvhost: VHOST '=' QSTRING ';'
279 (localConf.vhost_address.s_addr = inet_addr(yylval.text)))
280 localConf.vhost_address.s_addr = INADDR_ANY;
283 adminblock: ADMIN '{' adminitems '}'
285 if (localConf.location1 == NULL)
286 DupString(localConf.location1, "");
287 if (localConf.location2 == NULL)
288 DupString(localConf.location2, "");
289 if (localConf.contact == NULL)
290 DupString(localConf.contact, "");
292 adminitems: adminitems adminitem | adminitem;
293 adminitem: adminlocation | admincontact;
294 adminlocation: LOCATION '=' QSTRING ';'
296 if (localConf.location1 == NULL)
297 DupString(localConf.location1, yylval.text);
298 else if (localConf.location2 == NULL)
299 DupString(localConf.location2, yylval.text);
300 /* Otherwise just drop it. -A1kmm */
302 admincontact: CONTACT '=' QSTRING ';'
304 if (localConf.contact != NULL)
305 free(localConf.contact);
306 DupString(localConf.contact, yylval.text);
319 add_class(name, tping, tconn, maxlinks, sendq);
322 classitems: classitem classitems | classitem;
323 classitem: classname | classpingfreq | classconnfreq | classmaxlinks |
325 classname: NAME '=' QSTRING ';'
328 DupString(name, yylval.text);
330 classpingfreq: PINGFREQ '=' timespec ';'
334 classconnfreq: CONNECTFREQ '=' timespec ';'
338 classmaxlinks: MAXLINKS '=' expr ';'
340 maxlinks = yylval.num;
342 classsendq: SENDQ '=' sizespec ';'
347 connectblock: CONNECT
349 name = pass = host = NULL;
352 } '{' connectitems '}'
354 if (name != NULL && pass != NULL && host != NULL && class != NULL &&
355 /*ccount < MAXCONFLINKS &&*/ !strchr(host, '*') &&
358 aconf = MyMalloc(sizeof(*aconf));
359 aconf->status = CONF_SERVER;
361 aconf->passwd = pass;
362 aconf->conn_class = class;
364 aconf->status = CONF_SERVER;
366 aconf->next = GlobalConfList;
367 aconf->ipnum.s_addr = INADDR_NONE;
368 lookup_confhost(aconf);
369 GlobalConfList = aconf;
370 printf("Server added: %s\n", name);
371 /* ccount++; -- XXX fixme --- A1kmm */
378 name = pass = host = NULL;
381 connectitems: connectitem connectitems | connectitem;
382 connectitem: connectname | connectpass | connectclass | connecthost
384 connectname: NAME '=' QSTRING ';'
387 DupString(name, yylval.text);
389 connectpass: PASS '=' QSTRING ';'
392 DupString(pass, yylval.text);
394 connectclass: CLASS '=' QSTRING ';'
396 class = find_class(yylval.text);
398 connecthost: HOST '=' QSTRING ';'
401 DupString(host, yylval.text);
403 connectport: PORT '=' NUMBER ';'
410 aconf = MyMalloc(sizeof(*aconf));
411 memset(aconf, 0, sizeof(*aconf));
412 } '{' serveritems '}'
414 if (aconf->status == 0)
423 aconf->next = GlobalConfList;
424 GlobalConfList = aconf;
427 serveritems: serveritem serveritems | serveritem;
428 serveritem: servername | servermask | serverhub | serverleaf |
430 servername: NAME '=' QSTRING
433 DupString(aconf->name, yylval.text);
435 servermask: MASK '=' QSTRING
438 DupString(aconf->host, yylval.text);
440 /* XXX - perhaps we should do this the hybrid way in connect blocks
442 serverhub: HUB '=' YES ';'
444 aconf->status |= CONF_HUB;
445 aconf->status &= ~CONF_LEAF;
449 aconf->status &= ~CONF_HUB;
451 serverleaf: LEAF '=' YES ';'
453 if (!(aconf->status & CONF_HUB && aconf->status & CONF_UWORLD))
454 aconf->status |= CONF_LEAF;
458 aconf->status &= ~CONF_LEAF;
460 serveruworld: UWORLD '=' YES ';'
462 aconf->status |= CONF_UWORLD;
463 aconf->status &= ~CONF_LEAF;
467 aconf->status &= ~CONF_UWORLD;
472 aconf = MyMalloc(sizeof(*aconf));
473 memset(aconf, 0, sizeof(*aconf));
474 aconf->status = CONF_OPERATOR;
475 set_initial_oper_privs(aconf, (FLAGS_OPER | FLAGS_LOCOP));
476 } '{' operitems '}' ';'
478 if (aconf->name != NULL && aconf->passwd != NULL && aconf->host != NULL)
480 log_write(LS_CONFIG, L_ERROR, 0, "added an oper block for host %s", aconf->host);
481 aconf->next = GlobalConfList;
482 GlobalConfList = aconf;
486 log_write(LS_CONFIG, L_ERROR, 0, "operator blocks need a name, password, and host.");
488 MyFree(aconf->passwd);
494 operitems: operitem | operitems operitem;
495 operitem: opername | operpass | operlocal | operhost | operclass | operpriv;
497 opername: NAME '=' QSTRING ';'
500 DupString(aconf->name, yylval.text);
503 operpass: PASS '=' QSTRING ';'
505 MyFree(aconf->passwd);
506 DupString(aconf->passwd, yylval.text);
509 operlocal: LOCAL '=' YES ';'
511 /* XXX it would be good to get rid of local operators and add same
512 * permission values here. But for now, I am just going with local
514 aconf->status = CONF_LOCOP;
515 /* XXX blow away existing priviledges. */
516 set_initial_oper_privs(aconf, FLAGS_LOCOP);
519 /* XXX blow away existing priviledges. */
520 set_initial_oper_privs(aconf, (FLAGS_OPER|FLAGS_LOCOP));
521 aconf->status = CONF_OPERATOR;
524 operhost: HOST '=' QSTRING ';'
527 if (!strchr(yylval.text, '@'))
530 char *b = MyMalloc((uh_len = strlen(yylval.text)+3));
531 ircd_snprintf(0, b, uh_len, "*@%s", yylval.text);
535 DupString(aconf->host, yylval.text);
538 operclass: CLASS '=' QSTRING ';'
540 aconf->conn_class = find_class(yylval.text);
543 operpriv: privtype '=' yesorno ';'
546 PrivSet(&aconf->privs, $1);
548 PrivClr(&aconf->privs, $1);
551 privtype: TPRIV_CHAN_LIMIT { $$ = PRIV_CHAN_LIMIT; } |
552 TPRIV_MODE_LCHAN { $$ = PRIV_MODE_LCHAN; } |
553 TPRIV_DEOP_LCHAN { $$ = PRIV_DEOP_LCHAN; } |
554 TPRIV_WALK_LCHAN { $$ = PRIV_WALK_LCHAN; } |
555 TPRIV_KILL { $$ = PRIV_KILL; } |
556 TPRIV_LOCAL_KILL { $$ = PRIV_LOCAL_KILL; } |
557 TPRIV_REHASH { $$ = PRIV_REHASH; } |
558 TPRIV_RESTART { $$ = PRIV_RESTART; } |
559 TPRIV_DIE { $$ = PRIV_DIE; } |
560 TPRIV_GLINE { $$ = PRIV_GLINE; } |
561 TPRIV_LOCAL_GLINE { $$ = PRIV_LOCAL_GLINE; } |
562 TPRIV_JUPE { $$ = PRIV_JUPE; } |
563 TPRIV_LOCAL_JUPE { $$ = PRIV_LOCAL_JUPE; } |
564 TPRIV_LOCAL_OPMODE { $$ = PRIV_LOCAL_OPMODE; } |
565 TPRIV_OPMODE { $$ = PRIV_OPMODE; }|
566 TPRIV_SET { $$ = PRIV_SET; } |
567 TPRIV_WHOX { $$ = PRIV_WHOX; } |
568 TPRIV_BADCHAN { $$ = PRIV_BADCHAN; } |
569 TPRIV_LOCAL_BADCHAN { $$ = TPRIV_LOCAL_BADCHAN; } |
570 TPRIV_SEE_CHAN { $$ = PRIV_SEE_CHAN; } |
571 TPRIV_SHOW_INVIS { $$ = PRIV_SHOW_INVIS; } |
572 TPRIV_SHOW_ALL_INVIS { $$ = PRIV_SHOW_ALL_INVIS; } |
573 TPRIV_PROPAGATE { $$ = PRIV_PROPAGATE; } |
574 TPRIV_UNLIMIT_QUERY { $$ = PRIV_UNLIMIT_QUERY; } |
575 TPRIV_DISPLAY { $$ = PRIV_DISPLAY; } |
576 TPRIV_SEE_OPERS { $$ = PRIV_SEE_OPERS; } |
577 TPRIV_WIDE_GLINE { $$ = PRIV_WIDE_GLINE; };
579 yesorno: YES { $$ = 1; } | NO { $$ = 0; };
581 /* The port block... */
585 /* Hijack these for is_server, is_hidden to cut down on globals... */
588 /* and this for mask... */
590 } '{' portitems '}' ';'
592 if (port > 0 && port <= 0xFFFF)
594 add_listener(port, host, pass, tconn, tping);
603 portitems: portitem portitems | portitem;
604 portitem: portnumber | portvhost | portmask | portserver | porthidden;
605 portnumber: PORT '=' NUMBER ';'
610 portvhost: VHOST '=' QSTRING ';'
613 DupString(host, yylval.text);
616 portmask: MASK '=' QSTRING ';'
619 DupString(pass, yylval.text);
622 portserver: SERVER '=' YES ';'
625 } | SERVER '=' NO ';'
630 porthidden: HIDDEN '=' YES ';'
633 } | HIDDEN '=' NO ';'
640 aconf = MyMalloc(sizeof(*aconf));
641 memset(aconf, 0, sizeof(*aconf));
642 aconf->status = CONF_CLIENT;
643 } '{' clientitems '}'
645 if ((aconf->host != NULL || aconf->name!=NULL))
647 if (aconf->host == NULL)
648 DupString(aconf->host, "");
649 if (aconf->name == NULL)
650 DupString(aconf->name, "");
651 if (aconf->conn_class == NULL)
652 aconf->conn_class = find_class("default");
653 aconf->next = GlobalConfList;
654 GlobalConfList = aconf;
660 MyFree(aconf->passwd);
665 clientitems: clientitem clientitems | clientitem;
666 clientitem: clienthost | clientclass | clientpass | clientip;
667 clientip: IP '=' QSTRING ';'
670 DupString(aconf->host, yylval.text);
673 clienthost: HOST '=' QSTRING ';'
676 DupString(aconf->name, yylval.text);
679 clientclass: CLASS '=' QSTRING ';'
681 aconf->conn_class = find_class(yylval.text);
684 clientpass: PASS '=' QSTRING ';'
686 MyFree(aconf->passwd);
687 DupString(aconf->passwd, yylval.text);
692 dconf = MyMalloc(sizeof(*dconf));
693 memset(dconf, 0, sizeof(*dconf));
696 if (dconf->hostmask != NULL)
698 if (dconf->usermask == NULL)
699 DupString(dconf->usermask, "*");
700 dconf->next = denyConfList;
701 denyConfList = dconf;
706 MyFree(dconf->hostmask);
707 MyFree(dconf->message);
712 killitems: killitem killitems | killitem;
713 killitem: killuhost | killreal | killreasonfile | killreason;
714 killuhost: HOST '=' QSTRING ';'
717 dconf->flags &= ~DENY_FLAGS_REALNAME;
718 MyFree(dconf->hostmask);
719 MyFree(dconf->usermask);
720 if ((h = strchr(yylval.text, '@')) == NULL)
730 DupString(dconf->hostmask, h);
731 DupString(dconf->usermask, u);
732 if (strchr(yylval.text, '.'))
738 dconf->flags |= DENY_FLAGS_IP;
739 c_class = sscanf(dconf->hostmask, "%d.%d.%d.%d/%d",
740 &ad[0], &ad[1], &ad[2], &ad[3], &bits2);
742 dconf->bits = c_class * 8;
747 ircd_snprintf(0, ipname, sizeof(ipname), "%d.%d.%d.%d", ad[0], ad[1],
749 dconf->address = inet_addr(ipname);
753 killreal: REAL '=' QSTRING ';'
755 dconf->flags &= ~DENY_FLAGS_IP;
756 dconf->flags |= DENY_FLAGS_REALNAME;
757 MyFree(dconf->hostmask);
758 /* Leave usermask so you can specify user and real... */
759 DupString(dconf->hostmask, yylval.text);
762 killreason: REASON '=' QSTRING ';'
764 dconf->flags &= DENY_FLAGS_FILE;
765 MyFree(dconf->message);
766 DupString(dconf->message, yylval.text);
769 killreasonfile: TFILE '=' QSTRING ';'
771 dconf->flags |= DENY_FLAGS_FILE;
772 MyFree(dconf->message);
773 DupString(dconf->message, yylval.text);
782 struct CRuleNode *node;
783 if (host != NULL && pass != NULL && (node=crule_parse(pass)) != NULL)
785 struct CRuleConf *p = MyMalloc(sizeof(*p));
790 p->next = cruleConfList;
800 cruleitems: cruleitem cruleitems | cruleitem;
801 cruleitem: cruleserver | crulerule | cruleall;
803 cruleserver: SERVER '=' QSTRING ';'
806 collapse(yylval.text);
807 DupString(host, yylval.text);
810 crulerule: RULE '=' QSTRING ';'
813 DupString(pass, yylval.text);
816 cruleall: ALL '=' YES ';'
828 if (host != NULL && pass != NULL)
829 motd_add(host, pass);
835 motditems: motditem motditems | motditem;
836 motditem: motdhost | motdfile;
837 motdhost: HOST '=' QSTRING ';'
839 DupString(host, yylval.text);
842 motdfile: TFILE '=' QSTRING ';'
844 DupString(pass, yylval.text);
847 featuresblock: FEATURES '{' featureitems '}' ';';
848 featureitems: featureitems featureitem | featureitem;
854 } '=' stringlist ';';
862 feature_set(NULL, (const char * const *)stringlist, stringno);
864 posextrastrings: /* empty */ | extrastrings;
865 extrastrings: extrastrings extrastring | extrastring;
868 if (stringno < MAX_STRINGS)
869 stringlist[stringno++] = $1;