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Add ipv4-in-ipv6 logic to check_one_kline
[solanum.git] / ircd / s_user.c
1 /*
2 * ircd-ratbox: A slightly useful ircd.
3 * s_user.c: User related functions.
4 *
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
8 *
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
13 *
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
18 *
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
22 * USA
23 */
24
25 #include "stdinc.h"
26 #include "s_user.h"
27 #include "channel.h"
28 #include "class.h"
29 #include "client.h"
30 #include "hash.h"
31 #include "match.h"
32 #include "ircd.h"
33 #include "listener.h"
34 #include "msg.h"
35 #include "numeric.h"
36 #include "s_conf.h"
37 #include "s_newconf.h"
38 #include "logger.h"
39 #include "s_serv.h"
40 #include "s_stats.h"
41 #include "scache.h"
42 #include "send.h"
43 #include "supported.h"
44 #include "whowas.h"
45 #include "packet.h"
46 #include "reject.h"
47 #include "cache.h"
48 #include "hook.h"
49 #include "monitor.h"
50 #include "snomask.h"
51 #include "substitution.h"
52 #include "chmode.h"
53 #include "s_assert.h"
54
55 static void report_and_set_user_flags(struct Client *, struct ConfItem *);
56 void user_welcome(struct Client *source_p);
57
58 char umodebuf[128];
59
60 static int orphaned_umodes = 0;
61 int user_modes[256] = {
62 /* 0x00 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x0F */
63 /* 0x10 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x1F */
64 /* 0x20 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x2F */
65 /* 0x30 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x3F */
66 0, /* @ */
67 0, /* A */
68 0, /* B */
69 0, /* C */
70 UMODE_DEAF, /* D */
71 0, /* E */
72 0, /* F */
73 0, /* G */
74 0, /* H */
75 0, /* I */
76 0, /* J */
77 0, /* K */
78 0, /* L */
79 0, /* M */
80 0, /* N */
81 0, /* O */
82 0, /* P */
83 UMODE_NOFORWARD, /* Q */
84 UMODE_REGONLYMSG, /* R */
85 UMODE_SERVICE, /* S */
86 0, /* T */
87 0, /* U */
88 0, /* V */
89 0, /* W */
90 0, /* X */
91 0, /* Y */
92 UMODE_SSLCLIENT, /* Z */
93 /* 0x5B */ 0, 0, 0, 0, 0, 0, /* 0x60 */
94 UMODE_ADMIN, /* a */
95 0, /* b */
96 0, /* c */
97 0, /* d */
98 0, /* e */
99 0, /* f */
100 UMODE_CALLERID, /* g */
101 0, /* h */
102 UMODE_INVISIBLE, /* i */
103 0, /* j */
104 0, /* k */
105 UMODE_LOCOPS, /* l */
106 0, /* m */
107 0, /* n */
108 UMODE_OPER, /* o */
109 0, /* p */
110 0, /* q */
111 0, /* r */
112 UMODE_SERVNOTICE, /* s */
113 0, /* t */
114 0, /* u */
115 0, /* v */
116 UMODE_WALLOP, /* w */
117 0, /* x */
118 0, /* y */
119 UMODE_OPERWALL, /* z */
120 /* 0x7B */ 0, 0, 0, 0, 0, /* 0x7F */
121 /* 0x80 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x9F */
122 /* 0x90 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x9F */
123 /* 0xA0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xAF */
124 /* 0xB0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xBF */
125 /* 0xC0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xCF */
126 /* 0xD0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xDF */
127 /* 0xE0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xEF */
128 /* 0xF0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xFF */
129 };
130 /* *INDENT-ON* */
131
132 /*
133 * show_lusers -
134 *
135 * inputs - pointer to client
136 * output -
137 * side effects - display to client user counts etc.
138 */
139 void
140 show_lusers(struct Client *source_p)
141 {
142 if(rb_dlink_list_length(&lclient_list) > (unsigned long)MaxClientCount)
143 MaxClientCount = rb_dlink_list_length(&lclient_list);
144
145 if((rb_dlink_list_length(&lclient_list) + rb_dlink_list_length(&serv_list)) >
146 (unsigned long)MaxConnectionCount)
147 MaxConnectionCount = rb_dlink_list_length(&lclient_list) +
148 rb_dlink_list_length(&serv_list);
149
150 sendto_one_numeric(source_p, RPL_LUSERCLIENT, form_str(RPL_LUSERCLIENT),
151 (Count.total - Count.invisi),
152 Count.invisi,
153 (int)rb_dlink_list_length(&global_serv_list));
154
155 if(rb_dlink_list_length(&oper_list) > 0)
156 sendto_one_numeric(source_p, RPL_LUSEROP,
157 form_str(RPL_LUSEROP),
158 (int)rb_dlink_list_length(&oper_list));
159
160 if(rb_dlink_list_length(&unknown_list) > 0)
161 sendto_one_numeric(source_p, RPL_LUSERUNKNOWN,
162 form_str(RPL_LUSERUNKNOWN),
163 (int)rb_dlink_list_length(&unknown_list));
164
165 if(rb_dlink_list_length(&global_channel_list) > 0)
166 sendto_one_numeric(source_p, RPL_LUSERCHANNELS,
167 form_str(RPL_LUSERCHANNELS),
168 rb_dlink_list_length(&global_channel_list));
169
170 sendto_one_numeric(source_p, RPL_LUSERME, form_str(RPL_LUSERME),
171 (int)rb_dlink_list_length(&lclient_list),
172 (int)rb_dlink_list_length(&serv_list));
173
174 sendto_one_numeric(source_p, RPL_LOCALUSERS,
175 form_str(RPL_LOCALUSERS),
176 (int)rb_dlink_list_length(&lclient_list),
177 Count.max_loc,
178 (int)rb_dlink_list_length(&lclient_list),
179 Count.max_loc);
180
181 sendto_one_numeric(source_p, RPL_GLOBALUSERS, form_str(RPL_GLOBALUSERS),
182 Count.total, Count.max_tot,
183 Count.total, Count.max_tot);
184
185 sendto_one_numeric(source_p, RPL_STATSCONN,
186 form_str(RPL_STATSCONN),
187 MaxConnectionCount, MaxClientCount,
188 Count.totalrestartcount);
189 }
190
191 /* check if we should exit a client due to authd decision
192 * inputs - client server, client connecting
193 * outputs - true if exited, false if not
194 * side effects - messages/exits client if authd rejected and not exempt
195 */
196 static bool
197 authd_check(struct Client *client_p, struct Client *source_p)
198 {
199 struct ConfItem *aconf = source_p->localClient->att_conf;
200 rb_dlink_list varlist = { NULL, NULL, 0 };
201 bool reject = false;
202 char *reason;
203
204 if(source_p->preClient->auth.accepted == true)
205 return reject;
206
207 substitution_append_var(&varlist, "nick", source_p->name);
208 substitution_append_var(&varlist, "ip", source_p->sockhost);
209 substitution_append_var(&varlist, "host", source_p->host);
210 substitution_append_var(&varlist, "dnsbl-host", source_p->preClient->auth.data);
211 substitution_append_var(&varlist, "network-name", ServerInfo.network_name);
212 reason = substitution_parse(source_p->preClient->auth.reason, &varlist);
213
214 switch(source_p->preClient->auth.cause)
215 {
216 case 'B': /* Blacklists */
217 {
218 struct BlacklistStats *stats;
219 char *blacklist = source_p->preClient->auth.data;
220
221 if(bl_stats != NULL)
222 if((stats = rb_dictionary_retrieve(bl_stats, blacklist)) != NULL)
223 stats->hits++;
224
225 if(IsExemptKline(source_p) || IsConfExemptDNSBL(aconf))
226 {
227 sendto_one_notice(source_p, ":*** Your IP address %s is listed in %s, but you are exempt",
228 source_p->sockhost, blacklist);
229 break;
230 }
231
232 sendto_realops_snomask(SNO_REJ, L_NETWIDE,
233 "Listed on DNSBL %s: %s (%s@%s) [%s] [%s]",
234 blacklist, source_p->name, source_p->username, source_p->host,
235 IsIPSpoof(source_p) ? "255.255.255.255" : source_p->sockhost,
236 source_p->info);
237
238 sendto_one(source_p, form_str(ERR_YOUREBANNEDCREEP),
239 me.name, source_p->name, reason);
240
241 sendto_one_notice(source_p, ":*** Your IP address %s is listed in %s",
242 source_p->sockhost, blacklist);
243 add_reject(source_p, NULL, NULL, NULL, "Banned (DNS blacklist)");
244 exit_client(client_p, source_p, &me, "Banned (DNS blacklist)");
245 reject = true;
246 }
247 break;
248 case 'O': /* OPM */
249 {
250 char *proxy = source_p->preClient->auth.data;
251 char *port = strrchr(proxy, ':');
252
253 if(port == NULL)
254 {
255 /* This shouldn't happen, better tell the ops... */
256 ierror("authd sent us a malformed OPM string %s", proxy);
257 sendto_realops_snomask(SNO_GENERAL, L_ALL,
258 "authd sent us a malformed OPM string %s", proxy);
259 break;
260 }
261
262 /* Terminate the proxy type */
263 *(port++) = '\0';
264
265 if(IsExemptKline(source_p) || IsConfExemptProxy(aconf))
266 {
267 sendto_one_notice(source_p,
268 ":*** Your IP address %s has been detected as an open proxy (type %s, port %s), but you are exempt",
269 source_p->sockhost, proxy, port);
270 break;
271 }
272 sendto_realops_snomask(SNO_REJ, L_NETWIDE,
273 "Open proxy %s/%s: %s (%s@%s) [%s] [%s]",
274 proxy, port,
275 source_p->name,
276 source_p->username, source_p->host,
277 IsIPSpoof(source_p) ? "255.255.255.255" : source_p->sockhost,
278 source_p->info);
279
280 sendto_one(source_p, form_str(ERR_YOUREBANNEDCREEP),
281 me.name, source_p->name, reason);
282
283 sendto_one_notice(source_p,
284 ":*** Your IP address %s has been detected as an open proxy (type %s, port %s)",
285 source_p->sockhost, proxy, port);
286 add_reject(source_p, NULL, NULL, NULL, "Banned (Open proxy)");
287 exit_client(client_p, source_p, &me, "Banned (Open proxy)");
288 reject = true;
289 }
290 break;
291 default: /* Unknown, but handle the case properly */
292 if(IsExemptKline(source_p))
293 {
294 sendto_one_notice(source_p,
295 ":*** You were rejected, but you are exempt (reason: %s)",
296 reason);
297 break;
298 }
299 sendto_realops_snomask(SNO_REJ, L_NETWIDE,
300 "Rejected by authentication system (reason %s): %s (%s@%s) [%s] [%s]",
301 reason, source_p->name, source_p->username, source_p->host,
302 IsIPSpoof(source_p) ? "255.255.255.255" : source_p->sockhost,
303 source_p->info);
304
305 sendto_one(source_p, form_str(ERR_YOUREBANNEDCREEP),
306 me.name, source_p->name, reason);
307
308 sendto_one_notice(source_p, ":*** Rejected by authentication system: %s",
309 reason);
310 add_reject(source_p, NULL, NULL, NULL, "Banned (authentication system)");
311 exit_client(client_p, source_p, &me, "Banned (authentication system)");
312 reject = true;
313 break;
314 }
315
316 if(reject)
317 ServerStats.is_ref++;
318
319 substitution_free(&varlist);
320
321 return reject;
322 }
323
324 /*
325 ** register_local_user
326 ** This function is called when both NICK and USER messages
327 ** have been accepted for the client, in whatever order. Only
328 ** after this, is the USER message propagated.
329 **
330 ** NICK's must be propagated at once when received, although
331 ** it would be better to delay them too until full info is
332 ** available. Doing it is not so simple though, would have
333 ** to implement the following:
334 **
335 ** (actually it has been implemented already for a while) -orabidoo
336 **
337 ** 1) user telnets in and gives only "NICK foobar" and waits
338 ** 2) another user far away logs in normally with the nick
339 ** "foobar" (quite legal, as this server didn't propagate
340 ** it).
341 ** 3) now this server gets nick "foobar" from outside, but
342 ** has alread the same defined locally. Current server
343 ** would just issue "KILL foobar" to clean out dups. But,
344 ** this is not fair. It should actually request another
345 ** nick from local user or kill him/her...
346 */
347 int
348 register_local_user(struct Client *client_p, struct Client *source_p)
349 {
350 struct ConfItem *aconf, *xconf;
351 char tmpstr2[BUFSIZE];
352 char ipaddr[HOSTIPLEN];
353 char myusername[USERLEN+1];
354 int status;
355
356 s_assert(NULL != source_p);
357 s_assert(MyConnect(source_p));
358
359 if(source_p == NULL)
360 return -1;
361
362 if(IsAnyDead(source_p))
363 return -1;
364
365 if(ConfigFileEntry.ping_cookie)
366 {
367 if(!(source_p->flags & FLAGS_PINGSENT) && source_p->localClient->random_ping == 0)
368 {
369 source_p->localClient->random_ping = (uint32_t)(((rand() * rand()) << 1) | 1);
370 sendto_one(source_p, "PING :%08X",
371 (unsigned int) source_p->localClient->random_ping);
372 source_p->flags |= FLAGS_PINGSENT;
373 return -1;
374 }
375 if(!(source_p->flags & FLAGS_PING_COOKIE))
376 {
377 return -1;
378 }
379 }
380
381 /* hasnt finished client cap negotiation */
382 if(source_p->flags & FLAGS_CLICAP)
383 return -1;
384
385 /* Waiting on authd */
386 if(source_p->preClient->auth.cid)
387 return -1;
388
389 client_p->localClient->last = rb_current_time();
390
391 /* XXX - fixme. we shouldnt have to build a users buffer twice.. */
392 if(!IsGotId(source_p) && (strchr(source_p->username, '[') != NULL))
393 {
394 const char *p;
395 int i = 0;
396
397 p = source_p->username;
398
399 while(*p && i < USERLEN)
400 {
401 if(*p != '[')
402 myusername[i++] = *p;
403 p++;
404 }
405
406 myusername[i] = '\0';
407 }
408 else
409 rb_strlcpy(myusername, source_p->username, sizeof myusername);
410
411 if((status = check_client(client_p, source_p, myusername)) < 0)
412 return (CLIENT_EXITED);
413
414 /* Apply nick override */
415 if(*source_p->preClient->spoofnick)
416 {
417 char note[NAMELEN + 10];
418
419 del_from_client_hash(source_p->name, source_p);
420 rb_strlcpy(source_p->name, source_p->preClient->spoofnick, NICKLEN + 1);
421 add_to_client_hash(source_p->name, source_p);
422
423 snprintf(note, sizeof(note), "Nick: %s", source_p->name);
424 rb_note(source_p->localClient->F, note);
425 }
426
427 if(!valid_hostname(source_p->host))
428 {
429 sendto_one_notice(source_p, ":*** Notice -- You have an illegal character in your hostname");
430
431 rb_strlcpy(source_p->host, source_p->sockhost, sizeof(source_p->host));
432 }
433
434 aconf = source_p->localClient->att_conf;
435
436 if(aconf == NULL)
437 {
438 exit_client(client_p, source_p, &me, "*** Not Authorised");
439 return (CLIENT_EXITED);
440 }
441
442 if(IsConfSSLNeeded(aconf) && !IsSSL(source_p))
443 {
444 ServerStats.is_ref++;
445 sendto_one_notice(source_p, ":*** Notice -- You need to use SSL/TLS to use this server");
446 exit_client(client_p, source_p, &me, "Use SSL/TLS");
447 return (CLIENT_EXITED);
448 }
449
450 if(IsSCTP(source_p) && !IsConfAllowSCTP(aconf))
451 {
452 ServerStats.is_ref++;
453 sendto_one_notice(source_p, ":*** Notice -- You are not allowed to use SCTP on this server");
454 exit_client(client_p, source_p, &me, "SCTP not allowed");
455 return (CLIENT_EXITED);
456 }
457
458 if(!IsGotId(source_p))
459 {
460 const char *p;
461 int i = 0;
462
463 if(IsNeedIdentd(aconf))
464 {
465 ServerStats.is_ref++;
466 sendto_one_notice(source_p, ":*** Notice -- You need to install identd to use this server");
467 exit_client(client_p, source_p, &me, "Install identd");
468 return (CLIENT_EXITED);
469 }
470
471 /* dont replace username if its supposed to be spoofed --fl */
472 if(!IsConfDoSpoofIp(aconf) || !strchr(aconf->info.name, '@'))
473 {
474 p = myusername;
475
476 if(!IsNoTilde(aconf))
477 source_p->username[i++] = '~';
478
479 while (*p && i < USERLEN)
480 {
481 if(*p != '[')
482 source_p->username[i++] = *p;
483 p++;
484 }
485
486 source_p->username[i] = '\0';
487 }
488 }
489
490 if(IsNeedSasl(aconf) && !*source_p->user->suser)
491 {
492 ServerStats.is_ref++;
493 sendto_one_notice(source_p, ":*** Notice -- You need to identify via SASL to use this server");
494 exit_client(client_p, source_p, &me, "SASL access only");
495 return (CLIENT_EXITED);
496 }
497
498 /* password check */
499 if(!EmptyString(aconf->passwd))
500 {
501 const char *encr;
502
503 if(EmptyString(source_p->localClient->passwd))
504 encr = "";
505 else if(IsConfEncrypted(aconf))
506 encr = rb_crypt(source_p->localClient->passwd, aconf->passwd);
507 else
508 encr = source_p->localClient->passwd;
509
510 if(encr == NULL || strcmp(encr, aconf->passwd))
511 {
512 ServerStats.is_ref++;
513 sendto_one(source_p, form_str(ERR_PASSWDMISMATCH), me.name, source_p->name);
514 exit_client(client_p, source_p, &me, "Bad Password");
515 return (CLIENT_EXITED);
516 }
517
518 /* clear password only if used now, otherwise send it
519 * to services -- jilles */
520 if(source_p->localClient->passwd)
521 {
522 memset(source_p->localClient->passwd, 0, strlen(source_p->localClient->passwd));
523 rb_free(source_p->localClient->passwd);
524 source_p->localClient->passwd = NULL;
525 }
526 }
527
528 /* report and set flags (kline exempt etc.) as needed in source_p */
529 report_and_set_user_flags(source_p, aconf);
530
531 /* Limit clients */
532 /*
533 * We want to be able to have servers and F-line clients
534 * connect, so save room for "buffer" connections.
535 * Smaller servers may want to decrease this, and it should
536 * probably be just a percentage of the MAXCLIENTS...
537 * -Taner
538 */
539 /* Except "F:" clients */
540 if(rb_dlink_list_length(&lclient_list) >=
541 (unsigned long)GlobalSetOptions.maxclients && !IsConfExemptLimits(aconf))
542 {
543 sendto_realops_snomask(SNO_FULL, L_ALL,
544 "Too many clients, rejecting %s[%s].", source_p->name, source_p->host);
545
546 ServerStats.is_ref++;
547 exit_client(client_p, source_p, &me, "Sorry, server is full - try later");
548 return (CLIENT_EXITED);
549 }
550
551 /* kline exemption extends to xline too */
552 if(!IsExemptKline(source_p) &&
553 (xconf = find_xline(source_p->info, 1)) != NULL)
554 {
555 ServerStats.is_ref++;
556 add_reject(source_p, xconf->host, NULL, NULL, NULL);
557 exit_client(client_p, source_p, &me, "Bad user info");
558 return CLIENT_EXITED;
559 }
560
561 /* authd rejection check */
562 if(authd_check(client_p, source_p))
563 return CLIENT_EXITED;
564
565 /* valid user name check */
566
567 if(!valid_username(source_p->username))
568 {
569 sendto_realops_snomask(SNO_REJ, L_ALL,
570 "Invalid username: %s (%s@%s)",
571 source_p->name, source_p->username, source_p->host);
572 ServerStats.is_ref++;
573 sendto_one_notice(source_p, ":*** Your username is invalid. Please make sure that your username contains "
574 "only alphanumeric characters.");
575 sprintf(tmpstr2, "Invalid username [%s]", source_p->username);
576 exit_client(client_p, source_p, &me, tmpstr2);
577 return (CLIENT_EXITED);
578 }
579
580 /* end of valid user name check */
581
582 /* Store original hostname -- jilles */
583 rb_strlcpy(source_p->orighost, source_p->host, HOSTLEN + 1);
584
585 /* Spoof user@host */
586 if(*source_p->preClient->spoofuser)
587 rb_strlcpy(source_p->username, source_p->preClient->spoofuser, USERLEN + 1);
588 if(*source_p->preClient->spoofhost)
589 {
590 rb_strlcpy(source_p->host, source_p->preClient->spoofhost, HOSTLEN + 1);
591 if (irccmp(source_p->host, source_p->orighost))
592 SetDynSpoof(source_p);
593 }
594
595 source_p->umodes |= ConfigFileEntry.default_umodes & ~ConfigFileEntry.oper_only_umodes & ~orphaned_umodes;
596
597 call_hook(h_new_local_user, source_p);
598
599 /* If they have died in send_* or were thrown out by the
600 * new_local_user hook don't do anything. */
601 if(IsAnyDead(source_p))
602 return CLIENT_EXITED;
603
604 /* To avoid inconsistencies, do not abort the registration
605 * starting from this point -- jilles
606 */
607 rb_inet_ntop_sock((struct sockaddr *)&source_p->localClient->ip, ipaddr, sizeof(ipaddr));
608
609 sendto_realops_snomask(SNO_CCONN, L_ALL,
610 "Client connecting: %s (%s@%s) [%s] {%s} [%s]",
611 source_p->name, source_p->username, source_p->orighost,
612 show_ip(NULL, source_p) ? ipaddr : "255.255.255.255",
613 get_client_class(source_p), source_p->info);
614
615 sendto_realops_snomask(SNO_CCONNEXT, L_ALL,
616 "CLICONN %s %s %s %s %s %s 0 %s",
617 source_p->name, source_p->username, source_p->orighost,
618 show_ip(NULL, source_p) ? ipaddr : "255.255.255.255",
619 get_client_class(source_p),
620 /* mirc can sometimes send ips here */
621 show_ip(NULL, source_p) ? source_p->localClient->fullcaps : "<hidden> <hidden>",
622 source_p->info);
623
624 add_to_hostname_hash(source_p->orighost, source_p);
625
626 /* Allocate a UID if it was not previously allocated.
627 * If this already occured, it was probably during SASL auth...
628 */
629 if(!*source_p->id)
630 {
631 rb_strlcpy(source_p->id, generate_uid(), sizeof(source_p->id));
632 add_to_id_hash(source_p->id, source_p);
633 }
634
635 if (IsSSL(source_p) && !IsInsecure(source_p))
636 source_p->umodes |= UMODE_SSLCLIENT;
637
638 if (source_p->umodes & UMODE_INVISIBLE)
639 Count.invisi++;
640
641 s_assert(!IsClient(source_p));
642 rb_dlinkMoveNode(&source_p->localClient->tnode, &unknown_list, &lclient_list);
643 SetClient(source_p);
644
645 source_p->servptr = &me;
646 rb_dlinkAdd(source_p, &source_p->lnode, &source_p->servptr->serv->users);
647
648 /* Increment our total user count here */
649 if(++Count.total > Count.max_tot)
650 Count.max_tot = Count.total;
651
652 Count.totalrestartcount++;
653
654 s_assert(source_p->localClient != NULL);
655
656 if(rb_dlink_list_length(&lclient_list) > (unsigned long)Count.max_loc)
657 {
658 Count.max_loc = rb_dlink_list_length(&lclient_list);
659 if(!(Count.max_loc % 10))
660 sendto_realops_snomask(SNO_GENERAL, L_ALL,
661 "New Max Local Clients: %d", Count.max_loc);
662 }
663
664 /* they get a reduced limit */
665 if(find_tgchange(source_p->sockhost))
666 source_p->localClient->targets_free = TGCHANGE_INITIAL_LOW;
667 else
668 source_p->localClient->targets_free = TGCHANGE_INITIAL;
669
670 monitor_signon(source_p);
671 user_welcome(source_p);
672
673 free_pre_client(source_p);
674
675 introduce_client(client_p, source_p, source_p->user, source_p->name, 1);
676 return 0;
677 }
678
679 /*
680 * introduce_clients
681 *
682 * inputs -
683 * output -
684 * side effects - This common function introduces a client to the rest
685 * of the net, either from a local client connect or
686 * from a remote connect.
687 */
688 void
689 introduce_client(struct Client *client_p, struct Client *source_p, struct User *user, const char *nick, int use_euid)
690 {
691 char ubuf[BUFSIZE];
692 struct Client *identifyservice_p;
693 char *p;
694 hook_data_umode_changed hdata;
695 hook_data_client hdata2;
696
697 if(MyClient(source_p))
698 send_umode(source_p, source_p, 0, ubuf);
699 else
700 send_umode(NULL, source_p, 0, ubuf);
701
702 if(!*ubuf)
703 {
704 ubuf[0] = '+';
705 ubuf[1] = '\0';
706 }
707
708 s_assert(has_id(source_p));
709
710 if (use_euid)
711 sendto_server(client_p, NULL, CAP_EUID | CAP_TS6, NOCAPS,
712 ":%s EUID %s %d %ld %s %s %s %s %s %s %s :%s",
713 source_p->servptr->id, nick,
714 source_p->hopcount + 1,
715 (long) source_p->tsinfo, ubuf,
716 source_p->username, source_p->host,
717 IsIPSpoof(source_p) ? "0" : source_p->sockhost,
718 source_p->id,
719 IsDynSpoof(source_p) ? source_p->orighost : "*",
720 EmptyString(source_p->user->suser) ? "*" : source_p->user->suser,
721 source_p->info);
722
723 sendto_server(client_p, NULL, CAP_TS6, use_euid ? CAP_EUID : NOCAPS,
724 ":%s UID %s %d %ld %s %s %s %s %s :%s",
725 source_p->servptr->id, nick,
726 source_p->hopcount + 1,
727 (long) source_p->tsinfo, ubuf,
728 source_p->username, source_p->host,
729 IsIPSpoof(source_p) ? "0" : source_p->sockhost,
730 source_p->id, source_p->info);
731
732 if(!EmptyString(source_p->certfp))
733 sendto_server(client_p, NULL, CAP_TS6, NOCAPS,
734 ":%s ENCAP * CERTFP :%s",
735 use_id(source_p), source_p->certfp);
736
737 if (IsDynSpoof(source_p))
738 {
739 sendto_server(client_p, NULL, CAP_TS6, use_euid ? CAP_EUID : NOCAPS, ":%s ENCAP * REALHOST %s",
740 use_id(source_p), source_p->orighost);
741 }
742
743 if (!EmptyString(source_p->user->suser))
744 {
745 sendto_server(client_p, NULL, CAP_TS6, use_euid ? CAP_EUID : NOCAPS, ":%s ENCAP * LOGIN %s",
746 use_id(source_p), source_p->user->suser);
747 }
748
749 if(MyConnect(source_p) && source_p->localClient->passwd)
750 {
751 if (!EmptyString(ConfigFileEntry.identifyservice) &&
752 !EmptyString(ConfigFileEntry.identifycommand))
753 {
754 /* use user@server */
755 p = strchr(ConfigFileEntry.identifyservice, '@');
756 if (p != NULL)
757 identifyservice_p = find_named_client(p + 1);
758 else
759 identifyservice_p = NULL;
760 if (identifyservice_p != NULL)
761 {
762 if (!EmptyString(source_p->localClient->auth_user))
763 sendto_one(identifyservice_p, ":%s PRIVMSG %s :%s %s %s",
764 get_id(source_p, identifyservice_p),
765 ConfigFileEntry.identifyservice,
766 ConfigFileEntry.identifycommand,
767 source_p->localClient->auth_user,
768 source_p->localClient->passwd);
769 else
770 sendto_one(identifyservice_p, ":%s PRIVMSG %s :%s %s",
771 get_id(source_p, identifyservice_p),
772 ConfigFileEntry.identifyservice,
773 ConfigFileEntry.identifycommand,
774 source_p->localClient->passwd);
775 }
776 }
777 memset(source_p->localClient->passwd, 0, strlen(source_p->localClient->passwd));
778 rb_free(source_p->localClient->passwd);
779 source_p->localClient->passwd = NULL;
780 }
781
782 /* let modules providing usermodes know that we've got a new user,
783 * why is this here? -- well, some modules need to be able to send out new
784 * information about a client, so this was the best place to do it
785 * --nenolod
786 */
787 hdata.client = source_p;
788 hdata.oldumodes = 0;
789 hdata.oldsnomask = 0;
790 call_hook(h_umode_changed, &hdata);
791
792 /* On the other hand, some modules need to know when a client is
793 * being introduced, period.
794 * --gxti
795 */
796 hdata2.client = client_p;
797 hdata2.target = source_p;
798 call_hook(h_introduce_client, &hdata2);
799 }
800
801 /*
802 * valid_hostname - check hostname for validity
803 *
804 * Inputs - pointer to user
805 * Output - true if valid, false if not
806 * Side effects - NONE
807 *
808 * NOTE: this doesn't allow a hostname to begin with a dot and
809 * will not allow more dots than chars.
810 */
811 bool
812 valid_hostname(const char *hostname)
813 {
814 const char *p = hostname, *last_slash = 0;
815 int found_sep = 0;
816
817 s_assert(NULL != p);
818
819 if(hostname == NULL)
820 return false;
821
822 if(!strcmp(hostname, "localhost"))
823 return true;
824
825 if('.' == *p || ':' == *p || '/' == *p)
826 return false;
827
828 while (*p)
829 {
830 if(!IsHostChar(*p))
831 return false;
832 if(*p == '.' || *p == ':')
833 found_sep++;
834 else if(*p == '/')
835 {
836 found_sep++;
837 last_slash = p;
838 }
839 p++;
840 }
841
842 if(found_sep == 0)
843 return false;
844
845 if(last_slash && IsDigit(last_slash[1]))
846 return false;
847
848 return true;
849 }
850
851 /*
852 * valid_username - check username for validity
853 *
854 * Inputs - pointer to user
855 * Output - true if valid, false if not
856 * Side effects - NONE
857 *
858 * Absolutely always reject any '*' '!' '?' '@' in an user name
859 * reject any odd control characters names.
860 * Allow '.' in username to allow for "first.last"
861 * style of username
862 */
863 bool
864 valid_username(const char *username)
865 {
866 int dots = 0;
867 const char *p = username;
868
869 s_assert(NULL != p);
870
871 if(username == NULL)
872 return false;
873
874 if('~' == *p)
875 ++p;
876
877 /* reject usernames that don't start with an alphanum
878 * i.e. reject jokers who have '-@somehost' or '.@somehost'
879 * or "-hi-@somehost", "h-----@somehost" would still be accepted.
880 */
881 if(!IsAlNum(*p))
882 return false;
883
884 while (*++p)
885 {
886 if((*p == '.') && ConfigFileEntry.dots_in_ident)
887 {
888 dots++;
889 if(dots > ConfigFileEntry.dots_in_ident)
890 return false;
891 if(!IsUserChar(p[1]))
892 return false;
893 }
894 else if(!IsUserChar(*p))
895 return false;
896 }
897 return true;
898 }
899
900 /* report_and_set_user_flags
901 *
902 * Inputs - pointer to source_p
903 * - pointer to aconf for this user
904 * Output - NONE
905 * Side effects -
906 * Report to user any special flags they are getting, and set them.
907 */
908
909 static void
910 report_and_set_user_flags(struct Client *source_p, struct ConfItem *aconf)
911 {
912 /* If this user is being spoofed, tell them so */
913 if(IsConfDoSpoofIp(aconf))
914 {
915 sendto_one_notice(source_p, ":*** Spoofing your IP");
916 }
917
918 /* If this user is in the exception class, Set it "E lined" */
919 if(IsConfExemptKline(aconf))
920 {
921 SetExemptKline(source_p);
922 sendto_one_notice(source_p, ":*** You are exempt from K/X lines");
923 }
924
925 if(IsConfExemptDNSBL(aconf))
926 /* kline exempt implies this, don't send both */
927 if(!IsConfExemptKline(aconf))
928 sendto_one_notice(source_p, ":*** You are exempt from DNS blacklists");
929
930 /* If this user is exempt from user limits set it F lined" */
931 if(IsConfExemptLimits(aconf))
932 {
933 sendto_one_notice(source_p, ":*** You are exempt from user limits");
934 }
935
936 if(IsConfExemptFlood(aconf))
937 {
938 SetExemptFlood(source_p);
939 sendto_one_notice(source_p, ":*** You are exempt from flood limits");
940 }
941
942 if(IsConfExemptSpambot(aconf))
943 {
944 SetExemptSpambot(source_p);
945 sendto_one_notice(source_p, ":*** You are exempt from spambot checks");
946 }
947
948 if(IsConfExemptJupe(aconf))
949 {
950 SetExemptJupe(source_p);
951 sendto_one_notice(source_p, ":*** You are exempt from juped channel warnings");
952 }
953
954 if(IsConfExemptResv(aconf))
955 {
956 SetExemptResv(source_p);
957 sendto_one_notice(source_p, ":*** You are exempt from resvs");
958 }
959
960 if(IsConfExemptShide(aconf))
961 {
962 SetExemptShide(source_p);
963 sendto_one_notice(source_p, ":*** You are exempt from serverhiding");
964 }
965
966 if(IsConfExtendChans(aconf))
967 {
968 SetExtendChans(source_p);
969 sendto_one_notice(source_p, ":*** You are exempt from normal channel limits");
970 }
971 }
972
973 static void
974 show_other_user_mode(struct Client *source_p, struct Client *target_p)
975 {
976 int i;
977 char buf[BUFSIZE];
978 char *m;
979
980 m = buf;
981 *m++ = '+';
982
983 for (i = 0; i < 128; i++) /* >= 127 is extended ascii */
984 if (target_p->umodes & user_modes[i])
985 *m++ = (char) i;
986 *m = '\0';
987
988 if (MyConnect(target_p) && target_p->snomask != 0)
989 sendto_one_notice(source_p, ":Modes for %s are %s %s",
990 target_p->name, buf,
991 construct_snobuf(target_p->snomask));
992 else
993 sendto_one_notice(source_p, ":Modes for %s are %s",
994 target_p->name, buf);
995 }
996
997 /*
998 * user_mode - set get current users mode
999 *
1000 * m_umode() added 15/10/91 By Darren Reed.
1001 * parv[1] - username to change mode for
1002 * parv[2] - modes to change
1003 */
1004 int
1005 user_mode(struct Client *client_p, struct Client *source_p, int parc, const char *parv[])
1006 {
1007 int flag;
1008 int i;
1009 char *m;
1010 const char *pm;
1011 struct Client *target_p;
1012 int what, setflags;
1013 bool badflag = false; /* Only send one bad flag notice */
1014 bool showsnomask = false;
1015 unsigned int setsnomask;
1016 char buf[BUFSIZE];
1017 hook_data_umode_changed hdata;
1018
1019 what = MODE_ADD;
1020
1021 if(parc < 2)
1022 {
1023 sendto_one(source_p, form_str(ERR_NEEDMOREPARAMS), me.name, source_p->name, "MODE");
1024 return 0;
1025 }
1026
1027 if((target_p = MyClient(source_p) ? find_named_person(parv[1]) : find_person(parv[1])) == NULL)
1028 {
1029 if(MyConnect(source_p))
1030 sendto_one_numeric(source_p, ERR_NOSUCHCHANNEL,
1031 form_str(ERR_NOSUCHCHANNEL), parv[1]);
1032 return 0;
1033 }
1034
1035 /* Dont know why these were commented out..
1036 * put them back using new sendto() funcs
1037 */
1038
1039 if(IsServer(source_p))
1040 {
1041 sendto_realops_snomask(SNO_GENERAL, L_ADMIN,
1042 "*** Mode for User %s from %s", parv[1], source_p->name);
1043 return 0;
1044 }
1045
1046 if(source_p != target_p)
1047 {
1048 if (MyOper(source_p) && parc < 3)
1049 show_other_user_mode(source_p, target_p);
1050 else
1051 sendto_one(source_p, form_str(ERR_USERSDONTMATCH), me.name, source_p->name);
1052 return 0;
1053 }
1054
1055 if(parc < 3)
1056 {
1057 m = buf;
1058 *m++ = '+';
1059
1060 for (i = 0; i < 128; i++) /* >= 127 is extended ascii */
1061 if (source_p->umodes & user_modes[i])
1062 *m++ = (char) i;
1063
1064 *m = '\0';
1065 sendto_one_numeric(source_p, RPL_UMODEIS, form_str(RPL_UMODEIS), buf);
1066
1067 if (source_p->snomask != 0)
1068 sendto_one_numeric(source_p, RPL_SNOMASK, form_str(RPL_SNOMASK),
1069 construct_snobuf(source_p->snomask));
1070
1071 return 0;
1072 }
1073
1074 /* find flags already set for user */
1075 setflags = source_p->umodes;
1076 setsnomask = source_p->snomask;
1077
1078 /*
1079 * parse mode change string(s)
1080 */
1081 for (pm = parv[2]; *pm; pm++)
1082 switch (*pm)
1083 {
1084 case '+':
1085 what = MODE_ADD;
1086 break;
1087 case '-':
1088 what = MODE_DEL;
1089 break;
1090
1091 case 'o':
1092 if(what == MODE_ADD)
1093 {
1094 if(IsServer(client_p) && !IsOper(source_p))
1095 {
1096 ++Count.oper;
1097 SetOper(source_p);
1098 rb_dlinkAddAlloc(source_p, &oper_list);
1099 }
1100 }
1101 else
1102 {
1103 /* Only decrement the oper counts if an oper to begin with
1104 * found by Pat Szuta, Perly , perly@xnet.com
1105 */
1106
1107 if(!IsOper(source_p))
1108 break;
1109
1110 ClearOper(source_p);
1111
1112 Count.oper--;
1113
1114 if(MyConnect(source_p))
1115 {
1116 source_p->umodes &= ~ConfigFileEntry.oper_only_umodes;
1117 if (!(source_p->umodes & UMODE_SERVNOTICE) && source_p->snomask != 0)
1118 {
1119 source_p->snomask = 0;
1120 showsnomask = true;
1121 }
1122 source_p->flags &= ~OPER_FLAGS;
1123
1124 rb_dlinkFindDestroy(source_p, &local_oper_list);
1125 }
1126
1127 if(source_p->user->opername != NULL)
1128 {
1129 rb_free(source_p->user->opername);
1130 source_p->user->opername = NULL;
1131 }
1132
1133 if(source_p->user->privset != NULL)
1134 {
1135 privilegeset_unref(source_p->user->privset);
1136 source_p->user->privset = NULL;
1137 }
1138
1139 rb_dlinkFindDestroy(source_p, &oper_list);
1140 }
1141 break;
1142
1143 /* we may not get these,
1144 * but they shouldnt be in default
1145 */
1146
1147 /* can only be set on burst */
1148 case 'S':
1149 case 'Z':
1150 case ' ':
1151 case '\n':
1152 case '\r':
1153 case '\t':
1154 break;
1155
1156 case 's':
1157 if (MyConnect(source_p))
1158 {
1159 if(!IsOper(source_p)
1160 && (ConfigFileEntry.oper_only_umodes & UMODE_SERVNOTICE))
1161 {
1162 if (what == MODE_ADD || source_p->umodes & UMODE_SERVNOTICE)
1163 badflag = true;
1164 continue;
1165 }
1166 showsnomask = true;
1167 if(what == MODE_ADD)
1168 {
1169 if (parc > 3)
1170 source_p->snomask = parse_snobuf_to_mask(source_p->snomask, parv[3]);
1171 else
1172 source_p->snomask |= SNO_GENERAL;
1173 }
1174 else
1175 source_p->snomask = 0;
1176 if (source_p->snomask != 0)
1177 source_p->umodes |= UMODE_SERVNOTICE;
1178 else
1179 source_p->umodes &= ~UMODE_SERVNOTICE;
1180 break;
1181 }
1182 /* FALLTHROUGH */
1183 default:
1184 if (MyConnect(source_p) && *pm == 'Q' && !ConfigChannel.use_forward)
1185 {
1186 badflag = true;
1187 break;
1188 }
1189
1190 if((flag = user_modes[(unsigned char) *pm]))
1191 {
1192 if(MyConnect(source_p)
1193 && ((!IsOper(source_p)
1194 && (ConfigFileEntry.oper_only_umodes & flag))
1195 || (orphaned_umodes & flag)))
1196 {
1197 if (what == MODE_ADD || source_p->umodes & flag)
1198 badflag = true;
1199 }
1200 else
1201 {
1202 if(what == MODE_ADD)
1203 source_p->umodes |= flag;
1204 else
1205 source_p->umodes &= ~flag;
1206 }
1207 }
1208 else
1209 {
1210 if(MyConnect(source_p))
1211 badflag = true;
1212 }
1213 break;
1214 }
1215
1216 if(badflag)
1217 sendto_one(source_p, form_str(ERR_UMODEUNKNOWNFLAG), me.name, source_p->name);
1218
1219 if(MyClient(source_p) && (source_p->snomask & SNO_NCHANGE) && !IsOperN(source_p))
1220 {
1221 sendto_one_notice(source_p, ":*** You need oper and nick_changes flag for +s +n");
1222 source_p->snomask &= ~SNO_NCHANGE; /* only tcm's really need this */
1223 }
1224
1225 if(MyClient(source_p) && (source_p->umodes & UMODE_OPERWALL) && !IsOperOperwall(source_p))
1226 {
1227 sendto_one_notice(source_p, ":*** You need oper and operwall flag for +z");
1228 source_p->umodes &= ~UMODE_OPERWALL;
1229 }
1230
1231 if(MyConnect(source_p) && (source_p->umodes & UMODE_ADMIN) &&
1232 (!IsOperAdmin(source_p) || IsOperHiddenAdmin(source_p)))
1233 {
1234 sendto_one_notice(source_p, ":*** You need oper and admin flag for +a");
1235 source_p->umodes &= ~UMODE_ADMIN;
1236 }
1237
1238 /* let modules providing usermodes know that we've changed our usermode --nenolod */
1239 hdata.client = source_p;
1240 hdata.oldumodes = setflags;
1241 hdata.oldsnomask = setsnomask;
1242 call_hook(h_umode_changed, &hdata);
1243
1244 if(!(setflags & UMODE_INVISIBLE) && IsInvisible(source_p))
1245 ++Count.invisi;
1246 if((setflags & UMODE_INVISIBLE) && !IsInvisible(source_p))
1247 --Count.invisi;
1248 /*
1249 * compare new flags with old flags and send string which
1250 * will cause servers to update correctly.
1251 */
1252 send_umode_out(client_p, source_p, setflags);
1253 if (showsnomask && MyConnect(source_p))
1254 sendto_one_numeric(source_p, RPL_SNOMASK, form_str(RPL_SNOMASK),
1255 construct_snobuf(source_p->snomask));
1256
1257 return (0);
1258 }
1259
1260 /*
1261 * send the MODE string for user (user) to connection client_p
1262 * -avalon
1263 */
1264 void
1265 send_umode(struct Client *client_p, struct Client *source_p, int old, char *umode_buf)
1266 {
1267 int i;
1268 int flag;
1269 char *m;
1270 int what = 0;
1271
1272 /*
1273 * build a string in umode_buf to represent the change in the user's
1274 * mode between the new (source_p->flag) and 'old'.
1275 */
1276 m = umode_buf;
1277 *m = '\0';
1278
1279 for (i = 0; i < 128; i++)
1280 {
1281 flag = user_modes[i];
1282
1283 if((flag & old) && !(source_p->umodes & flag))
1284 {
1285 if(what == MODE_DEL)
1286 *m++ = (char) i;
1287 else
1288 {
1289 what = MODE_DEL;
1290 *m++ = '-';
1291 *m++ = (char) i;
1292 }
1293 }
1294 else if(!(flag & old) && (source_p->umodes & flag))
1295 {
1296 if(what == MODE_ADD)
1297 *m++ = (char) i;
1298 else
1299 {
1300 what = MODE_ADD;
1301 *m++ = '+';
1302 *m++ = (char) i;
1303 }
1304 }
1305 }
1306 *m = '\0';
1307
1308 if(*umode_buf && client_p)
1309 sendto_one(client_p, ":%s MODE %s :%s", source_p->name, source_p->name, umode_buf);
1310 }
1311
1312 /*
1313 * send_umode_out
1314 *
1315 * inputs -
1316 * output - NONE
1317 * side effects -
1318 */
1319 void
1320 send_umode_out(struct Client *client_p, struct Client *source_p, int old)
1321 {
1322 struct Client *target_p;
1323 char buf[BUFSIZE];
1324 rb_dlink_node *ptr;
1325
1326 send_umode(NULL, source_p, old, buf);
1327
1328 RB_DLINK_FOREACH(ptr, serv_list.head)
1329 {
1330 target_p = ptr->data;
1331
1332 if((target_p != client_p) && (target_p != source_p) && (*buf))
1333 {
1334 sendto_one(target_p, ":%s MODE %s :%s",
1335 get_id(source_p, target_p),
1336 get_id(source_p, target_p), buf);
1337 }
1338 }
1339
1340 if(client_p && MyClient(client_p))
1341 send_umode(client_p, source_p, old, buf);
1342 }
1343
1344 /*
1345 * user_welcome
1346 *
1347 * inputs - client pointer to client to welcome
1348 * output - NONE
1349 * side effects -
1350 */
1351 void
1352 user_welcome(struct Client *source_p)
1353 {
1354 sendto_one_numeric(source_p, RPL_WELCOME, form_str(RPL_WELCOME), ServerInfo.network_name, source_p->name);
1355 sendto_one_numeric(source_p, RPL_YOURHOST, form_str(RPL_YOURHOST),
1356 get_listener_name(source_p->localClient->listener), ircd_version);
1357 sendto_one_numeric(source_p, RPL_CREATED, form_str(RPL_CREATED), creation);
1358 sendto_one_numeric(source_p, RPL_MYINFO, form_str(RPL_MYINFO), me.name, ircd_version, umodebuf, cflagsmyinfo);
1359
1360 show_isupport(source_p);
1361
1362 show_lusers(source_p);
1363
1364 if(ConfigFileEntry.short_motd)
1365 {
1366 sendto_one_notice(source_p, ":*** Notice -- motd was last changed at %s", user_motd_changed);
1367 sendto_one_notice(source_p, ":*** Notice -- Please read the motd if you haven't read it");
1368
1369 sendto_one(source_p, form_str(RPL_MOTDSTART),
1370 me.name, source_p->name, me.name);
1371
1372 sendto_one(source_p, form_str(RPL_MOTD),
1373 me.name, source_p->name, "*** This is the short motd ***");
1374
1375 sendto_one(source_p, form_str(RPL_ENDOFMOTD), me.name, source_p->name);
1376 }
1377 else
1378 send_user_motd(source_p);
1379 }
1380
1381 /* oper_up()
1382 *
1383 * inputs - pointer to given client to oper
1384 * - pointer to ConfItem to use
1385 * output - none
1386 * side effects - opers up source_p using aconf for reference
1387 */
1388 void
1389 oper_up(struct Client *source_p, struct oper_conf *oper_p)
1390 {
1391 unsigned int old = source_p->umodes, oldsnomask = source_p->snomask;
1392 hook_data_umode_changed hdata;
1393
1394 SetOper(source_p);
1395
1396 if(oper_p->umodes)
1397 source_p->umodes |= oper_p->umodes;
1398 else if(ConfigFileEntry.oper_umodes)
1399 source_p->umodes |= ConfigFileEntry.oper_umodes;
1400 else
1401 source_p->umodes |= DEFAULT_OPER_UMODES;
1402
1403 if (oper_p->snomask)
1404 {
1405 source_p->snomask |= oper_p->snomask;
1406 source_p->umodes |= UMODE_SERVNOTICE;
1407 }
1408 else if (source_p->umodes & UMODE_SERVNOTICE)
1409 {
1410 /* Only apply these if +s is already set -- jilles */
1411 if (ConfigFileEntry.oper_snomask)
1412 source_p->snomask |= ConfigFileEntry.oper_snomask;
1413 else
1414 source_p->snomask |= DEFAULT_OPER_SNOMASK;
1415 }
1416
1417 Count.oper++;
1418
1419 SetExtendChans(source_p);
1420 SetExemptKline(source_p);
1421
1422 source_p->flags |= oper_p->flags;
1423 source_p->user->opername = rb_strdup(oper_p->name);
1424 source_p->user->privset = privilegeset_ref(oper_p->privset);
1425
1426 rb_dlinkAddAlloc(source_p, &local_oper_list);
1427 rb_dlinkAddAlloc(source_p, &oper_list);
1428
1429 if(IsOperAdmin(source_p) && !IsOperHiddenAdmin(source_p))
1430 source_p->umodes |= UMODE_ADMIN;
1431 if(!IsOperN(source_p))
1432 source_p->snomask &= ~SNO_NCHANGE;
1433 if(!IsOperOperwall(source_p))
1434 source_p->umodes &= ~UMODE_OPERWALL;
1435 hdata.client = source_p;
1436 hdata.oldumodes = old;
1437 hdata.oldsnomask = oldsnomask;
1438 call_hook(h_umode_changed, &hdata);
1439
1440 sendto_realops_snomask(SNO_GENERAL, L_ALL,
1441 "%s (%s!%s@%s) is now an operator", oper_p->name, source_p->name,
1442 source_p->username, source_p->host);
1443 sendto_server(NULL, NULL, CAP_TS6, NOCAPS, ":%s OPER %s %s",
1444 use_id(source_p), oper_p->name, oper_p->privset->name);
1445 if(!(old & UMODE_INVISIBLE) && IsInvisible(source_p))
1446 ++Count.invisi;
1447 if((old & UMODE_INVISIBLE) && !IsInvisible(source_p))
1448 --Count.invisi;
1449 send_umode_out(source_p, source_p, old);
1450 sendto_one_numeric(source_p, RPL_SNOMASK, form_str(RPL_SNOMASK),
1451 construct_snobuf(source_p->snomask));
1452 sendto_one(source_p, form_str(RPL_YOUREOPER), me.name, source_p->name);
1453 sendto_one_notice(source_p, ":*** Oper privilege set is %s", oper_p->privset->name);
1454 sendto_one_notice(source_p, ":*** Oper privs are %s", oper_p->privset->privs);
1455 send_oper_motd(source_p);
1456 }
1457
1458 /*
1459 * find_umode_slot
1460 *
1461 * inputs - NONE
1462 * outputs - an available umode bitmask or
1463 * 0 if no umodes are available
1464 * side effects - NONE
1465 */
1466 unsigned int
1467 find_umode_slot(void)
1468 {
1469 unsigned int all_umodes = 0, my_umode = 0, i;
1470
1471 for (i = 0; i < 128; i++)
1472 all_umodes |= user_modes[i];
1473
1474 for (my_umode = 1; my_umode && (all_umodes & my_umode);
1475 my_umode <<= 1);
1476
1477 return my_umode;
1478 }
1479
1480 void
1481 construct_umodebuf(void)
1482 {
1483 int i;
1484 char *ptr = umodebuf;
1485 static int prev_user_modes[128];
1486
1487 *ptr = '\0';
1488
1489 for (i = 0; i < 128; i++)
1490 {
1491 if (prev_user_modes[i] != 0 && prev_user_modes[i] != user_modes[i])
1492 {
1493 if (user_modes[i] == 0)
1494 {
1495 orphaned_umodes |= prev_user_modes[i];
1496 sendto_realops_snomask(SNO_DEBUG, L_ALL, "Umode +%c is now orphaned", i);
1497 }
1498 else
1499 {
1500 orphaned_umodes &= ~prev_user_modes[i];
1501 sendto_realops_snomask(SNO_DEBUG, L_ALL, "Orphaned umode +%c is picked up by module", i);
1502 }
1503 user_modes[i] = prev_user_modes[i];
1504 }
1505 else
1506 prev_user_modes[i] = user_modes[i];
1507 if (user_modes[i])
1508 *ptr++ = (char) i;
1509 }
1510
1511 *ptr++ = '\0';
1512 }
1513
1514 void
1515 change_nick_user_host(struct Client *target_p, const char *nick, const char *user,
1516 const char *host, int newts, const char *format, ...)
1517 {
1518 rb_dlink_node *ptr;
1519 struct Channel *chptr;
1520 struct membership *mscptr;
1521 int changed = irccmp(target_p->name, nick);
1522 int changed_case = strcmp(target_p->name, nick);
1523 int do_qjm = irccmp(target_p->username, user) || irccmp(target_p->host, host);
1524 char mode[10], modeval[NICKLEN * 2 + 2], reason[256], *mptr;
1525 va_list ap;
1526
1527 modeval[0] = '\0';
1528
1529 if(changed)
1530 {
1531 target_p->tsinfo = newts;
1532 monitor_signoff(target_p);
1533 }
1534 invalidate_bancache_user(target_p);
1535
1536 if(do_qjm)
1537 {
1538 va_start(ap, format);
1539 vsnprintf(reason, 255, format, ap);
1540 va_end(ap);
1541
1542 sendto_common_channels_local_butone(target_p, NOCAPS, CLICAP_CHGHOST, ":%s!%s@%s QUIT :%s",
1543 target_p->name, target_p->username, target_p->host,
1544 reason);
1545
1546 RB_DLINK_FOREACH(ptr, target_p->user->channel.head)
1547 {
1548 mscptr = ptr->data;
1549 chptr = mscptr->chptr;
1550 mptr = mode;
1551
1552 if(is_chanop(mscptr))
1553 {
1554 *mptr++ = 'o';
1555 strcat(modeval, nick);
1556 strcat(modeval, " ");
1557 }
1558
1559 if(is_voiced(mscptr))
1560 {
1561 *mptr++ = 'v';
1562 strcat(modeval, nick);
1563 }
1564
1565 *mptr = '\0';
1566
1567 sendto_channel_local_with_capability_butone(target_p, ALL_MEMBERS, NOCAPS, CLICAP_EXTENDED_JOIN | CLICAP_CHGHOST, chptr,
1568 ":%s!%s@%s JOIN %s", nick, user, host, chptr->chname);
1569 sendto_channel_local_with_capability_butone(target_p, ALL_MEMBERS, CLICAP_EXTENDED_JOIN, CLICAP_CHGHOST, chptr,
1570 ":%s!%s@%s JOIN %s %s :%s", nick, user, host, chptr->chname,
1571 EmptyString(target_p->user->suser) ? "*" : target_p->user->suser,
1572 target_p->info);
1573
1574 if(*mode)
1575 sendto_channel_local_with_capability_butone(target_p, ALL_MEMBERS, NOCAPS, CLICAP_CHGHOST, chptr,
1576 ":%s MODE %s +%s %s", target_p->servptr->name, chptr->chname, mode, modeval);
1577
1578 *modeval = '\0';
1579 }
1580
1581 /* Resend away message to away-notify enabled clients. */
1582 if (target_p->user->away)
1583 sendto_common_channels_local_butone(target_p, CLICAP_AWAY_NOTIFY, CLICAP_CHGHOST, ":%s!%s@%s AWAY :%s",
1584 nick, user, host,
1585 target_p->user->away);
1586
1587 sendto_common_channels_local_butone(target_p, CLICAP_CHGHOST, NOCAPS,
1588 ":%s!%s@%s CHGHOST %s %s",
1589 target_p->name, target_p->username, target_p->host, user, host);
1590
1591 if(MyClient(target_p) && changed_case)
1592 sendto_one(target_p, ":%s!%s@%s NICK %s",
1593 target_p->name, user, host, nick);
1594
1595 /* TODO: send some snotes to SNO_NCHANGE/SNO_CCONN/SNO_CCONNEXT? */
1596 }
1597 else if(changed_case)
1598 {
1599 sendto_common_channels_local(target_p, NOCAPS, NOCAPS, ":%s!%s@%s NICK :%s",
1600 target_p->name, user, host, nick);
1601
1602 if(MyConnect(target_p))
1603 sendto_realops_snomask(SNO_NCHANGE, L_ALL,
1604 "Nick change: From %s to %s [%s@%s]",
1605 target_p->name, nick,
1606 target_p->username, target_p->host);
1607 }
1608
1609 if (user != target_p->username)
1610 rb_strlcpy(target_p->username, user, sizeof target_p->username);
1611
1612 rb_strlcpy(target_p->host, host, sizeof target_p->host);
1613
1614 if (changed)
1615 whowas_add_history(target_p, 1);
1616
1617 del_from_client_hash(target_p->name, target_p);
1618 rb_strlcpy(target_p->name, nick, NICKLEN);
1619 add_to_client_hash(target_p->name, target_p);
1620
1621 if(changed)
1622 {
1623 monitor_signon(target_p);
1624 del_all_accepts(target_p);
1625 }
1626 }
Fork of solanum ircd, history is rebased regularly