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"
58 #include <arpa/inet.h>
59 #define MAX_STRINGS 80 /* Maximum number of feature params. */
60 extern struct LocalConf localConf;
61 extern struct DenyConf* denyConfList;
62 extern struct CRuleConf* cruleConfList;
63 extern struct ServerConf* serverConfList;
66 /* Now all the globals we need :/... */
67 int tping, tconn, maxlinks, sendq, port;
69 char *name, *pass, *host;
70 char *stringlist[MAX_STRINGS];
71 struct ConnectionClass *class;
72 struct ConfItem *aconf;
73 struct DenyConf *dconf;
74 struct ServerConf *sconf;
136 /* and now a lot of priviledges... */
137 %token TPRIV_CHAN_LIMIT, TPRIV_MODE_LCHAN, TPRIV_DEOP_LCHAN, TPRIV_WALK_LCHAN
138 %token TPRIV_KILL, TPRIV_LOCAL_KILL, TPRIV_REHASH, TPRIV_RESTART, TPRIV_DIE
139 %token TPRIV_GLINE, TPRIV_LOCAL_GLINE, TPRIV_JUPE, TPRIV_LOCAL_JUPE
140 %token TPRIV_LOCAL_OPMODE, TPRIV_OPMODE, TPRIV_SET, TPRIV_WHOX, TPRIV_BADCHAN
141 %token TPRIV_LOCAL_BADCHAN
142 %token TPRIV_SEE_CHAN, TPRIV_SHOW_INVIS, TPRIV_SHOW_ALL_INVIS, TPRIV_PROPAGATE
143 %token TPRIV_UNLIMIT_QUERY, TPRIV_DISPLAY, TPRIV_SEE_OPERS, TPRIV_WIDE_GLINE
144 /* and some types... */
146 %type <num> timespec, timefactor, factoredtimes, factoredtime
147 %type <num> expr, yesorno, privtype
157 /* Blocks in the config file... */
158 blocks: blocks block | block;
159 block: adminblock | generalblock | classblock | connectblock |
160 serverblock | operblock | portblock | jupeblock | clientblock |
161 killblock | cruleblock | motdblock | featuresblock;
163 /* The timespec, sizespec and expr was ripped straight from
165 timespec: expr | factoredtimes;
167 factoredtimes: factoredtimes factoredtime
172 factoredtime: expr timefactor
177 timefactor: SECONDS { $$ = 1; }
178 | MINUTES { $$ = 60; }
179 | HOURS { $$ = 60 * 60; }
180 | DAYS { $$ = 60 * 60 * 24; }
181 | WEEKS { $$ = 60 * 60 * 24 * 7; }
182 | MONTHS { $$ = 60 * 60 * 24 * 7 * 4; }
183 | YEARS { $$ = 60 * 60 * 24 * 365; }
184 | DECADES { $$ = 60 * 60 * 24 * 365 * 10; };
201 $$ = $1 * 1024 * 1024;
205 $$ = $1 * 1024 * 1024 * 1024;
209 $$ = $1 * 1024 * 1024 * 1024;
213 /* this is an arithmatic expression */
234 /* leave this out until we find why it makes BSD yacc dump core -larne
245 jupeblock: JUPE '{' jupeitems '}' ';' ;
246 jupeitems: jupeitem jupeitems | jupeitem;
248 jupenick: NICK '=' QSTRING
250 addNickJupes(yylval.text);
253 generalblock: GENERAL '{' generalitems '}' ';' ;
254 generalitems: generalitem generalitems | generalitem;
255 generalitem: generalnumeric | generalname | generalvhost | generaldesc;
256 generalnumeric: NUMERIC '=' NUMBER ';'
258 if (localConf.numeric == 0)
259 localConf.numeric = yylval.num;
262 generalname: NAME '=' QSTRING ';'
264 if (localConf.name == NULL)
265 DupString(localConf.name, yylval.text);
268 generaldesc: DESCRIPTION '=' QSTRING ';'
270 MyFree(localConf.description);
271 DupString(localConf.description, yylval.text);
274 generalvhost: VHOST '=' QSTRING ';'
277 (localConf.vhost_address.s_addr = inet_addr(yylval.text)))
278 localConf.vhost_address.s_addr = INADDR_ANY;
281 adminblock: ADMIN '{' adminitems '}'
283 if (localConf.location1 == NULL)
284 DupString(localConf.location1, "");
285 if (localConf.location2 == NULL)
286 DupString(localConf.location2, "");
287 if (localConf.contact == NULL)
288 DupString(localConf.contact, "");
290 adminitems: adminitems adminitem | adminitem;
291 adminitem: adminlocation | admincontact;
292 adminlocation: LOCATION '=' QSTRING ';'
294 if (localConf.location1 == NULL)
295 DupString(localConf.location1, yylval.text);
296 else if (localConf.location2 == NULL)
297 DupString(localConf.location2, yylval.text);
298 /* Otherwise just drop it. -A1kmm */
300 admincontact: CONTACT '=' QSTRING ';'
302 if (localConf.contact != NULL)
303 free(localConf.contact);
304 DupString(localConf.contact, yylval.text);
317 add_class(name, tping, tconn, maxlinks, sendq);
320 classitems: classitem classitems | classitem;
321 classitem: classname | classpingfreq | classconnfreq | classmaxlinks |
323 classname: NAME '=' QSTRING ';'
326 DupString(name, yylval.text);
328 classpingfreq: PINGFREQ '=' timespec ';'
332 classconnfreq: CONNECTFREQ '=' timespec ';'
336 classmaxlinks: MAXLINKS '=' expr ';'
338 maxlinks = yylval.num;
340 classsendq: SENDQ '=' sizespec ';'
345 connectblock: CONNECT
347 name = pass = host = NULL;
350 } '{' connectitems '}'
352 if (name != NULL && pass != NULL && host != NULL && class != NULL &&
353 /*ccount < MAXCONFLINKS &&*/ !strchr(host, '*') &&
356 aconf = MyMalloc(sizeof(*aconf));
357 aconf->status = CONF_SERVER;
359 aconf->passwd = pass;
360 aconf->conn_class = class;
362 aconf->status = CONF_SERVER;
364 aconf->next = GlobalConfList;
365 GlobalConfList = aconf;
366 printf("Server added: %s\n", name);
367 /* ccount++; -- XXX fixme --- A1kmm */
374 name = pass = host = NULL;
377 connectitems: connectitem connectitems | connectitem;
378 connectitem: connectname | connectpass | connectclass | connecthost
380 connectname: NAME '=' QSTRING ';'
383 DupString(name, yylval.text);
385 connectpass: PASS '=' QSTRING ';'
388 DupString(pass, yylval.text);
390 connectclass: CLASS '=' QSTRING ';'
392 class = find_class(yylval.text);
394 connecthost: HOST '=' QSTRING ';'
397 DupString(host, yylval.text);
399 connectport: PORT '=' NUMBER ';'
406 aconf = MyMalloc(sizeof(*aconf));
407 memset(aconf, 0, sizeof(*aconf));
408 } '{' serveritems '}'
410 if (aconf->status == 0)
419 aconf->next = GlobalConfList;
420 GlobalConfList = aconf;
423 serveritems: serveritem serveritems | serveritem;
424 serveritem: servername | servermask | serverhub | serverleaf |
426 servername: NAME '=' QSTRING
429 DupString(aconf->name, yylval.text);
431 servermask: MASK '=' QSTRING
434 DupString(aconf->host, yylval.text);
436 /* XXX - perhaps we should do this the hybrid way in connect blocks
438 serverhub: HUB '=' YES ';'
440 aconf->status |= CONF_HUB;
441 aconf->status &= ~CONF_LEAF;
445 aconf->status &= ~CONF_HUB;
447 serverleaf: LEAF '=' YES ';'
449 if (!(aconf->status & CONF_HUB && aconf->status & CONF_UWORLD))
450 aconf->status |= CONF_LEAF;
454 aconf->status &= ~CONF_LEAF;
456 serveruworld: UWORLD '=' YES ';'
458 aconf->status |= CONF_UWORLD;
459 aconf->status &= ~CONF_LEAF;
463 aconf->status &= ~CONF_UWORLD;
468 aconf = MyMalloc(sizeof(*aconf));
469 memset(aconf, 0, sizeof(*aconf));
470 aconf->status = CONF_OPERATOR;
471 set_initial_oper_privs(aconf, (FLAGS_OPER | FLAGS_LOCOP));
472 } '{' operitems '}' ';'
474 if (aconf->name != NULL && aconf->passwd != NULL && aconf->host != NULL)
476 log_write(LS_CONFIG, L_ERROR, 0, "added an oper block for host %s", aconf->host);
477 aconf->next = GlobalConfList;
478 GlobalConfList = aconf;
482 log_write(LS_CONFIG, L_ERROR, 0, "operator blocks need a name, password, and host.");
484 MyFree(aconf->passwd);
490 operitems: operitem | operitems operitem;
491 operitem: opername | operpass | operlocal | operhost | operclass | operpriv;
493 opername: NAME '=' QSTRING ';'
496 DupString(aconf->name, yylval.text);
499 operpass: PASS '=' QSTRING ';'
501 MyFree(aconf->passwd);
502 DupString(aconf->passwd, yylval.text);
505 operlocal: LOCAL '=' YES ';'
507 /* XXX it would be good to get rid of local operators and add same
508 * permission values here. But for now, I am just going with local
510 aconf->status = CONF_LOCOP;
511 /* XXX blow away existing priviledges. */
512 set_initial_oper_privs(aconf, FLAGS_LOCOP);
515 /* XXX blow away existing priviledges. */
516 set_initial_oper_privs(aconf, (FLAGS_OPER|FLAGS_LOCOP));
517 aconf->status = CONF_OPERATOR;
520 operhost: HOST '=' QSTRING ';'
523 if (!strchr(yylval.text, '@'))
526 char *b = MyMalloc((uh_len = strlen(yylval.text)+3));
527 ircd_snprintf(0, b, uh_len, "*@%s", yylval.text);
531 DupString(aconf->host, yylval.text);
534 operclass: CLASS '=' QSTRING ';'
536 aconf->conn_class = find_class(yylval.text);
539 operpriv: privtype '=' yesorno ';'
542 PrivSet(&aconf->privs, $1);
544 PrivClr(&aconf->privs, $1);
547 privtype: TPRIV_CHAN_LIMIT { $$ = PRIV_CHAN_LIMIT; } |
548 TPRIV_MODE_LCHAN { $$ = PRIV_MODE_LCHAN; } |
549 TPRIV_DEOP_LCHAN { $$ = PRIV_DEOP_LCHAN; } |
550 TPRIV_WALK_LCHAN { $$ = PRIV_WALK_LCHAN; } |
551 TPRIV_KILL { $$ = PRIV_KILL; } |
552 TPRIV_LOCAL_KILL { $$ = PRIV_LOCAL_KILL; } |
553 TPRIV_REHASH { $$ = PRIV_REHASH; } |
554 TPRIV_RESTART { $$ = PRIV_RESTART; } |
555 TPRIV_DIE { $$ = PRIV_DIE; } |
556 TPRIV_GLINE { $$ = PRIV_GLINE; } |
557 TPRIV_LOCAL_GLINE { $$ = PRIV_LOCAL_GLINE; } |
558 TPRIV_JUPE { $$ = PRIV_JUPE; } |
559 TPRIV_LOCAL_JUPE { $$ = PRIV_LOCAL_JUPE; } |
560 TPRIV_LOCAL_OPMODE { $$ = PRIV_LOCAL_OPMODE; } |
561 TPRIV_OPMODE { $$ = PRIV_OPMODE; }|
562 TPRIV_SET { $$ = PRIV_SET; } |
563 TPRIV_WHOX { $$ = PRIV_WHOX; } |
564 TPRIV_BADCHAN { $$ = PRIV_BADCHAN; } |
565 TPRIV_LOCAL_BADCHAN { $$ = TPRIV_LOCAL_BADCHAN; } |
566 TPRIV_SEE_CHAN { $$ = PRIV_SEE_CHAN; } |
567 TPRIV_SHOW_INVIS { $$ = PRIV_SHOW_INVIS; } |
568 TPRIV_SHOW_ALL_INVIS { $$ = PRIV_SHOW_ALL_INVIS; } |
569 TPRIV_PROPAGATE { $$ = PRIV_PROPAGATE; } |
570 TPRIV_UNLIMIT_QUERY { $$ = PRIV_UNLIMIT_QUERY; } |
571 TPRIV_DISPLAY { $$ = PRIV_DISPLAY; } |
572 TPRIV_SEE_OPERS { $$ = PRIV_SEE_OPERS; } |
573 TPRIV_WIDE_GLINE { $$ = PRIV_WIDE_GLINE; };
575 yesorno: YES { $$ = 1; } | NO { $$ = 0; };
577 /* The port block... */
581 /* Hijack these for is_server, is_hidden to cut down on globals... */
584 /* and this for mask... */
586 } '{' portitems '}' ';'
588 if (port > 0 && port <= 0xFFFF)
590 add_listener(port, host, pass, tconn, tping);
599 portitems: portitem portitems | portitem;
600 portitem: portnumber | portvhost | portmask | portserver | porthidden;
601 portnumber: PORT '=' NUMBER ';'
606 portvhost: VHOST '=' QSTRING ';'
609 DupString(host, yylval.text);
612 portmask: MASK '=' QSTRING ';'
615 DupString(pass, yylval.text);
618 portserver: SERVER '=' YES ';'
621 } | SERVER '=' NO ';'
626 porthidden: HIDDEN '=' YES ';'
629 } | HIDDEN '=' NO ';'
636 aconf = MyMalloc(sizeof(*aconf));
637 memset(aconf, 0, sizeof(*aconf));
638 aconf->status = CONF_CLIENT;
639 } '{' clientitems '}'
641 if ((aconf->host != NULL || aconf->name!=NULL))
643 if (aconf->host == NULL)
644 DupString(aconf->host, "");
645 if (aconf->name == NULL)
646 DupString(aconf->name, "");
647 if (aconf->conn_class == NULL)
648 aconf->conn_class = find_class("default");
649 aconf->next = GlobalConfList;
650 GlobalConfList = aconf;
656 MyFree(aconf->passwd);
661 clientitems: clientitem clientitems | clientitem;
662 clientitem: clienthost | clientclass | clientpass | clientip;
663 clientip: IP '=' QSTRING ';'
666 DupString(aconf->host, yylval.text);
669 clienthost: HOST '=' QSTRING ';'
672 DupString(aconf->name, yylval.text);
675 clientclass: CLASS '=' QSTRING ';'
677 aconf->conn_class = find_class(yylval.text);
680 clientpass: PASS '=' QSTRING ';'
682 MyFree(aconf->passwd);
683 DupString(aconf->passwd, yylval.text);
688 dconf = MyMalloc(sizeof(*dconf));
689 memset(dconf, 0, sizeof(*dconf));
692 if (dconf->hostmask != NULL)
694 if (dconf->usermask == NULL)
695 DupString(dconf->usermask, "*");
696 dconf->next = denyConfList;
697 denyConfList = dconf;
702 MyFree(dconf->hostmask);
703 MyFree(dconf->message);
708 killitems: killitem killitems | killitem;
709 killitem: killuhost | killreal | killreasonfile | killreason;
710 killuhost: HOST '=' QSTRING ';'
713 dconf->flags &= ~DENY_FLAGS_REALNAME;
714 MyFree(dconf->hostmask);
715 MyFree(dconf->usermask);
716 if ((h = strchr(yylval.text, '@')) == NULL)
726 DupString(dconf->hostmask, h);
727 DupString(dconf->usermask, u);
728 if (strchr(yylval.text, '.'))
734 dconf->flags |= DENY_FLAGS_IP;
735 c_class = sscanf(dconf->hostmask, "%d.%d.%d.%d/%d",
736 &ad[0], &ad[1], &ad[2], &ad[3], &bits2);
738 dconf->bits = c_class * 8;
743 ircd_snprintf(0, ipname, sizeof(ipname), "%d.%d.%d.%d", ad[0], ad[1],
745 dconf->address = inet_addr(ipname);
749 killreal: REAL '=' QSTRING ';'
751 dconf->flags &= ~DENY_FLAGS_IP;
752 dconf->flags |= DENY_FLAGS_REALNAME;
753 MyFree(dconf->hostmask);
754 /* Leave usermask so you can specify user and real... */
755 DupString(dconf->hostmask, yylval.text);
758 killreason: REASON '=' QSTRING ';'
760 dconf->flags &= DENY_FLAGS_FILE;
761 MyFree(dconf->message);
762 DupString(dconf->message, yylval.text);
765 killreasonfile: TFILE '=' QSTRING ';'
767 dconf->flags |= DENY_FLAGS_FILE;
768 MyFree(dconf->message);
769 DupString(dconf->message, yylval.text);
778 struct CRuleNode *node;
779 if (host != NULL && pass != NULL && (node=crule_parse(pass)) != NULL)
781 struct CRuleConf *p = MyMalloc(sizeof(*p));
786 p->next = cruleConfList;
796 cruleitems: cruleitem cruleitems | cruleitem;
797 cruleitem: cruleserver | crulerule | cruleall;
799 cruleserver: SERVER '=' QSTRING ';'
802 collapse(yylval.text);
803 DupString(host, yylval.text);
806 crulerule: RULE '=' QSTRING ';'
809 DupString(pass, yylval.text);
812 cruleall: ALL '=' YES ';'
824 if (host != NULL && pass != NULL)
825 motd_add(host, pass);
831 motditems: motditem motditems | motditem;
832 motditem: motdhost | motdfile;
833 motdhost: HOST '=' QSTRING ';'
835 DupString(host, yylval.text);
838 motdfile: TFILE '=' QSTRING ';'
840 DupString(pass, yylval.text);
843 featuresblock: FEATURES '{' featureitems '}' ';';
844 featureitems: featureitems featureitem | featureitem;
850 } '=' stringlist ';';
858 feature_set(NULL, (const char * const *)stringlist, stringno);
860 posextrastrings: /* empty */ | extrastrings;
861 extrastrings: extrastrings extrastring | extrastring;
864 if (stringno < MAX_STRINGS)
865 stringlist[stringno++] = $1;