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resolved all patch conflicts and removed all guards, except for hidebanowner.patch
[irc/quakenet/snircd-patchqueue.git] / split.patch
CommitLineData
12e82c05 1work in progress
2Add split functionality into ircd
3Add /split command
4Add /stats S/split (make /STATS s/S case sensitive, s spoofhosts)
5Add feature SPLIT
6Add split.c split.h m_split.c
7
7efbed3b 8NOTE: feature SPLIT is default enabled as that is just easier when working on this patch.
9
d61bc4d5 10diff -r 2267c134dc0d doc/api/log.txt
11--- a/doc/api/log.txt Tue Jan 27 18:19:11 2009 +0100
12+++ b/doc/api/log.txt Tue Jan 27 18:25:58 2009 +0100
0c63b280 13@@ -41,7 +41,7 @@
14
15 <enum>
16 enum LogSys {
17- LS_SYSTEM, LS_CONFIG, LS_OPERMODE, LS_GLINE, LS_JUPE, LS_WHO, LS_NETWORK,
18+ LS_SYSTEM, LS_CONFIG, LS_OPERMODE, LS_GLINE, LS_JUPE, LS_SPLIT, LS_WHO, LS_NETWORK,
19 LS_OPERKILL, LS_SERVKILL, LS_USER, LS_OPER, LS_RESOLVER, LS_SOCKET,
20 LS_DEBUG, LS_OLDLOG,
21 LS_LAST_SYSTEM
d61bc4d5 22diff -r 2267c134dc0d include/handlers.h
23--- a/include/handlers.h Tue Jan 27 18:19:11 2009 +0100
24+++ b/include/handlers.h Tue Jan 27 18:25:58 2009 +0100
12e82c05 25@@ -139,6 +139,7 @@
26 extern int m_registered(struct Client*, struct Client*, int, char*[]);
27 extern int m_sethost(struct Client*, struct Client*, int, char*[]);
28 extern int m_silence(struct Client*, struct Client*, int, char*[]);
29+extern int m_split(struct Client*, struct Client*, int, char*[]);
30 extern int m_stats(struct Client*, struct Client*, int, char*[]);
31 extern int m_time(struct Client*, struct Client*, int, char*[]);
32 extern int m_topic(struct Client*, struct Client*, int, char*[]);
d61bc4d5 33@@ -179,6 +180,7 @@
12e82c05 34 extern int mo_rping(struct Client*, struct Client*, int, char*[]);
35 extern int mo_set(struct Client*, struct Client*, int, char*[]);
36 extern int mo_settime(struct Client*, struct Client*, int, char*[]);
37+extern int mo_split(struct Client*, struct Client*, int, char*[]);
38 extern int mo_squit(struct Client*, struct Client*, int, char*[]);
39 extern int mo_stats(struct Client*, struct Client*, int, char*[]);
40 extern int mo_trace(struct Client*, struct Client*, int, char*[]);
d61bc4d5 41@@ -234,6 +236,7 @@
12e82c05 42 extern int ms_sethost(struct Client*, struct Client*, int, char*[]);
43 extern int ms_settime(struct Client*, struct Client*, int, char*[]);
44 extern int ms_silence(struct Client*, struct Client*, int, char*[]);
45+extern int ms_split(struct Client*, struct Client*, int, char*[]);
46 extern int ms_squit(struct Client*, struct Client*, int, char*[]);
47 extern int ms_stats(struct Client*, struct Client*, int, char*[]);
48 extern int ms_topic(struct Client*, struct Client*, int, char*[]);
d61bc4d5 49diff -r 2267c134dc0d include/ircd_features.h
50--- a/include/ircd_features.h Tue Jan 27 18:19:11 2009 +0100
51+++ b/include/ircd_features.h Tue Jan 27 18:25:58 2009 +0100
52@@ -112,6 +112,10 @@
12e82c05 53 FEAT_SETHOST_USER,
54 FEAT_SETHOST_AUTO,
12e82c05 55
65b70298 56+ /* SPLIT */
57+ FEAT_SPLIT,
58+ FEAT_SPLIT_AUTO_EXPIRE,
59+
12e82c05 60 /* HEAD_IN_SAND Features */
61 FEAT_HIS_SNOTICES,
65b70298 62 FEAT_HIS_SNOTICES_OPER_ONLY,
d61bc4d5 63@@ -139,6 +143,7 @@
12e82c05 64 FEAT_HIS_STATS_q,
65 FEAT_HIS_STATS_R,
66 FEAT_HIS_STATS_r,
67+ FEAT_HIS_STATS_S,
68 FEAT_HIS_STATS_s,
69 FEAT_HIS_STATS_t,
70 FEAT_HIS_STATS_T,
d61bc4d5 71diff -r 2267c134dc0d include/ircd_log.h
72--- a/include/ircd_log.h Tue Jan 27 18:19:11 2009 +0100
73+++ b/include/ircd_log.h Tue Jan 27 18:25:58 2009 +0100
0c63b280 74@@ -55,6 +55,7 @@
75 LS_OPERMODE, /**< Uses of OPMODE, CLEARMODE< etc. */
76 LS_GLINE, /**< Adding, (de-)activating or removing GLINEs. */
77 LS_JUPE, /**< Adding, (de-)activating or removing JUPEs. */
78+ LS_SPLIT, /**< Adding, (de-)activating or removing SPLITs. */
79 LS_WHO, /**< Use of extended WHO privileges. */
80 LS_NETWORK, /**< New server connections. */
81 LS_OPERKILL, /**< Kills by IRC operators. */
d61bc4d5 82diff -r 2267c134dc0d include/msg.h
83--- a/include/msg.h Tue Jan 27 18:19:11 2009 +0100
84+++ b/include/msg.h Tue Jan 27 18:25:58 2009 +0100
85@@ -336,6 +336,10 @@
12e82c05 86 #define TOK_JUPE "JU"
87 #define CMD_JUPE MSG_JUPE, TOK_JUPE
88
89+#define MSG_SPLIT "SPLIT" /* SPLIT */
90+#define TOK_SPLIT "SP"
91+#define CMD_SPLIT MSG_SPLIT, TOK_SPLIT
92+
93 #define MSG_OPMODE "OPMODE" /* OPMO */
94 #define TOK_OPMODE "OM"
95 #define CMD_OPMODE MSG_OPMODE, TOK_OPMODE
d61bc4d5 96diff -r 2267c134dc0d include/numeric.h
97--- a/include/numeric.h Tue Jan 27 18:19:11 2009 +0100
98+++ b/include/numeric.h Tue Jan 27 18:25:58 2009 +0100
99@@ -118,6 +118,7 @@
12e82c05 100 #define RPL_STATSALINE 226 /* Hybrid, Undernet */
d61bc4d5 101 #define RPL_STATSWELCOME 227 /* QuakeNet extension */
12e82c05 102 #define RPL_STATSQLINE 228 /* Undernet extension */
103+#define RPL_STATSSPLIT 229 /* QuakeNet extension */
65b70298 104 #define RPL_STATSHEADER 230 /* QuakeNet extension */
12e82c05 105
106 /* RPL_SERVICEINFO 231 unused */
d61bc4d5 107@@ -179,6 +180,8 @@
12e82c05 108 #define RPL_STATSDLINE 275 /* Undernet extension */
109 #define RPL_STATSRLINE 276 /* Undernet extension */
110
111+#define RPL_SPLITLIST 278 /* QuakeNet extension */
112+#define RPL_ENDOFSPLITLIST 279 /* QuakeNet extension */
113 #define RPL_GLIST 280 /* Undernet extension */
114 #define RPL_ENDOFGLIST 281 /* Undernet extension */
115 #define RPL_JUPELIST 282 /* Undernet extension - jupe -Kev */
d61bc4d5 116@@ -445,6 +448,7 @@
117
118 #define ERR_NOSUCHWELCOME 509 /* QuakeNet extension */
12e82c05 119
120+#define ERR_NOSUCHSPLIT 510 /* QuakeNet extension */
121 #define ERR_SILELISTFULL 511 /* Undernet extension */
122 /* ERR_NOTIFYFULL 512 aircd */
123 /* ERR_TOOMANYWATCH 512 Numeric List: Dalnet */
d61bc4d5 124diff -r 2267c134dc0d include/split.h
12e82c05 125--- /dev/null Thu Jan 01 00:00:00 1970 +0000
d61bc4d5 126+++ b/include/split.h Tue Jan 27 18:25:58 2009 +0100
0c63b280 127@@ -0,0 +1,106 @@
128+#ifndef INCLUDED_split_h
129+#define INCLUDED_split_h
12e82c05 130+/*
131+ * IRC - Internet Relay Chat, include/split.h
132+ * Copyright (C) 1990 Jarkko Oikarinen and
133+ * University of Oulu, Computing Center
134+ * Copyright (C) 2000 Kevin L. Mitchell <klmitch@mit.edu>
135+ *
136+ * This program is free software; you can redistribute it and/or modify
137+ * it under the terms of the GNU General Public License as published by
138+ * the Free Software Foundation; either version 2, or (at your option)
139+ * any later version.
140+ *
141+ * This program is distributed in the hope that it will be useful,
142+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
143+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
144+ * GNU General Public License for more details.
145+ *
146+ * You should have received a copy of the GNU General Public License
147+ * along with this program; if not, write to the Free Software
148+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
149+ */
150+/** @file
151+ * @brief Interface and declarations for split server handling.
152+ * @version $Id: jupe.h 1208 2004-10-03 14:12:35Z entrope $
153+ */
12e82c05 154+#ifndef INCLUDED_sys_types_h
155+#include <sys/types.h>
156+#define INCLUDED_sys_types_h
157+#endif
158+
159+
160+struct Client;
161+struct StatDesc;
162+
65b70298 163+#define SPLIT_MAX_EXPIRE 2419200 /**< Maximum split expiration time (4 weeks). */
12e82c05 164+
165+/* Describes a SPLIT server entry. */
166+struct Split {
167+ struct Split* sp_next; /**< Pointer to next Split. */
168+ struct Split** sp_prev_p; /**< Pointer to previous next pointer. */
169+ char* sp_server; /**< Name of server. */
170+ char* sp_reason; /**< Reason. */
171+ time_t sp_creation; /**< TODO: Creation time. What are we using this for then? */
172+ time_t sp_expire; /**< Expiration time. */
173+ time_t sp_lastmod; /**< Last modification time. */
174+ time_t sp_lifetime; /**< Life time. */
175+ unsigned int sp_flags; /**< Status flags. */
176+};
177+
178+/** Split state flags. */
0c63b280 179+#define SPLIT_ACTIVE 0x01 /**< Split is active. */
180+#define SPLIT_REMOVING 0x02 /**< Split is being force removed (instead of deactivated). */
181+#define SPLIT_BURST 0x04 /**< Split is for a server that is in progress of linking,
182+ and will be destroyed at the end of burst */
12e82c05 183+
12e82c05 184+/* Actions to perform on a SPLIT. */
185+enum SplitAction {
186+ SPLIT_ACTIVATE, /**< SPLIT should be activated. */
187+ SPLIT_DEACTIVATE, /**< SPLIT should be deactivated. */
188+ SPLIT_MODIFY, /**< SPLIT should be modified. */
189+ SPLIT_REMOVE /**< SPLIT should be removed. */
190+};
191+
12e82c05 192+/* Split update flags. */
55404221 193+#define SPLIT_EXPIRE 0x01 /**< Expiration time update. */
194+#define SPLIT_LIFETIME 0x02 /**< Record lifetime update. */
195+#define SPLIT_REASON 0x04 /**< Reason update. */
196+#define SPLIT_CREATION 0x08 /**< TODO: Creation time update - unused. */
197+#define SPLIT_MODIFY 0x10 /**< No state change. */
12e82c05 198+
199+/* mask for Split update flags. */
55404221 200+#define SPLIT_UPDATE (SPLIT_EXPIRE | SPLIT_CREATION | SPLIT_LIFETIME | SPLIT_REASON)
12e82c05 201+
202+/* test whether a split entry is active. */
203+#define SplitIsActive(s) ((s)->sp_flags & SPLIT_ACTIVE)
0c63b280 204+/* test whether a split entry is marked for forced removal. */
205+#define SplitIsRemoving(s) ((s)->sp_flags & SPLIT_REMOVING)
206+/* test whether a split entry is part of a netmerge. */
207+#define SplitIsBurst(s) ((s)->sp_flags & SPLIT_BURST)
12e82c05 208+
209+extern int split_add(struct Client *cptr, struct Client *sptr,
210+ char *server, const char *reason,
211+ time_t creation, time_t expire, time_t lastmod, time_t lifetime,
212+ unsigned int flags);
213+extern int split_modify(struct Client *cptr, struct Client *sptr,
214+ struct Split *split, enum SplitAction action, const char *reason,
215+ time_t creation, time_t expire, time_t lastmod, time_t lifetime,
216+ unsigned int flags);
217+extern int split_remove(struct Client *cptr, struct Client *sptr,
218+ struct Split *split, const char *reason);
219+
220+extern struct Split* split_find(char *server);
221+extern void split_free(struct Split *split);
222+extern int split_expire(struct Split* split);
223+extern void split_burst(struct Client *cptr);
224+extern int split_resend(struct Client *cptr, struct Split *split);
225+extern int split_list(struct Client *sptr, char *server);
0c63b280 226+extern void split_newserver(struct Client *acptr);
227+extern int split_netmerge(struct Client *sptr);
228+extern int split_netbreak(struct Client *victim, const char *reason);
12e82c05 229+extern void split_conf();
230+extern void split_stats(struct Client *sptr, const struct StatDesc *sd, char *param);
231+extern int split_memory_count(size_t *sp_size);
232+
0c63b280 233+#endif /* INCLUDED_split_h */
d61bc4d5 234diff -r 2267c134dc0d ircd/Makefile.in
235--- a/ircd/Makefile.in Tue Jan 27 18:19:11 2009 +0100
236+++ b/ircd/Makefile.in Tue Jan 27 18:25:58 2009 +0100
12e82c05 237@@ -173,6 +173,7 @@
238 m_sethost.c \
239 m_settime.c \
240 m_silence.c \
241+ m_split.c \
242 m_squit.c \
243 m_stats.c \
244 m_time.c \
d61bc4d5 245@@ -213,6 +214,7 @@
12e82c05 246 s_stats.c \
247 s_user.c \
248 send.c \
249+ split.c \
250 uping.c \
251 userload.c \
d61bc4d5 252 welcome.c \
253@@ -1054,6 +1056,15 @@
12e82c05 254 ../include/ircd_chattr.h ../include/list.h ../include/msg.h \
255 ../include/numeric.h ../include/numnicks.h ../include/s_user.h \
256 ../include/send.h ../include/struct.h
257+m_split.o: m_split.c ../config.h ../include/client.h ../include/ircd_defs.h \
258+ ../include/dbuf.h ../include/msgq.h ../include/ircd_events.h \
259+ ../config.h ../include/ircd_handler.h ../include/res.h \
260+ ../include/capab.h ../include/split.h ../include/hash.h \
261+ ../include/ircd.h ../include/struct.h ../include/ircd_features.h \
262+ ../include/ircd_log.h ../include/ircd_reply.h ../include/ircd_string.h \
263+ ../include/ircd_chattr.h ../include/match.h ../include/msg.h \
264+ ../include/numeric.h ../include/numnicks.h ../include/s_conf.h \
265+ ../include/client.h ../include/s_misc.h ../include/send.h
266 m_squit.o: m_squit.c ../config.h ../include/client.h \
267 ../include/ircd_defs.h ../include/dbuf.h ../include/msgq.h \
268 ../include/ircd_events.h ../config.h ../include/ircd_handler.h \
d61bc4d5 269@@ -1332,6 +1343,7 @@
12e82c05 270 ../include/msgq.h ../include/numeric.h ../include/numnicks.h \
271 ../include/res.h ../include/s_bsd.h ../include/s_conf.h \
272 ../include/s_user.h ../include/s_stats.h ../include/send.h \
273+ ../include/split.h \
274 ../include/struct.h ../include/sys.h ../include/whowas.h
275 s_err.o: s_err.c ../config.h ../include/numeric.h ../include/ircd_log.h \
276 ../include/s_debug.h ../config.h ../include/ircd_defs.h
d61bc4d5 277@@ -1417,6 +1429,16 @@
12e82c05 278 ../include/msg.h ../include/numnicks.h ../include/parse.h \
279 ../include/s_bsd.h ../include/s_debug.h ../include/s_misc.h \
280 ../include/s_user.h ../include/struct.h ../include/sys.h
281+split.o: split.c ../config.h ../include/split.h ../include/client.h \
282+ ../include/ircd_defs.h ../include/dbuf.h ../include/msgq.h \
283+ ../include/ircd_events.h ../config.h ../include/ircd_handler.h \
284+ ../include/res.h ../include/capab.h ../include/hash.h ../include/ircd.h \
285+ ../include/struct.h ../include/ircd_alloc.h ../include/ircd_features.h \
286+ ../include/ircd_log.h ../include/ircd_reply.h ../include/ircd_string.h \
287+ ../include/ircd_chattr.h ../include/match.h ../include/msg.h \
288+ ../include/numeric.h ../include/numnicks.h ../include/s_bsd.h \
289+ ../include/s_misc.h ../include/send.h ../include/struct.h \
290+ ../include/sys.h
291 uping.o: uping.c ../config.h ../include/uping.h ../include/ircd_defs.h \
292 ../include/ircd_events.h ../config.h ../include/res.h \
293 ../include/client.h ../include/dbuf.h ../include/msgq.h \
d61bc4d5 294diff -r 2267c134dc0d ircd/ircd.c
295--- a/ircd/ircd.c Tue Jan 27 18:19:11 2009 +0100
296+++ b/ircd/ircd.c Tue Jan 27 18:25:58 2009 +0100
12e82c05 297@@ -55,6 +55,7 @@
298 #include "s_misc.h"
299 #include "s_stats.h"
300 #include "send.h"
301+#include "split.h"
302 #include "sys.h"
303 #include "uping.h"
304 #include "userload.h"
305@@ -763,6 +764,9 @@
306 Debug((DEBUG_NOTICE, "Server ready..."));
307 log_write(LS_SYSTEM, L_NOTICE, 0, "Server Ready");
308
309+ /* create SPLITs */
310+ split_conf();
311+
312 event_loop();
313
314 return 0;
d61bc4d5 315diff -r 2267c134dc0d ircd/ircd_features.c
316--- a/ircd/ircd_features.c Tue Jan 27 18:19:11 2009 +0100
317+++ b/ircd/ircd_features.c Tue Jan 27 18:25:58 2009 +0100
318@@ -366,6 +366,10 @@
12e82c05 319 F_B(SETHOST_USER, 0, 0, 0),
320 F_B(SETHOST_AUTO, 0, 0, 0),
12e82c05 321
65b70298 322+ /* SPLIT */
323+ F_B(SPLIT, 0, 1, 0),
324+ F_I(SPLIT_AUTO_EXPIRE, 0, 604800, 0),
325+
12e82c05 326 /* HEAD_IN_SAND Features */
327 F_B(HIS_SNOTICES, 0, 1, 0),
65b70298 328 F_B(HIS_SNOTICES_OPER_ONLY, 0, 1, 0),
d61bc4d5 329@@ -393,6 +397,7 @@
12e82c05 330 F_B(HIS_STATS_q, 0, 1, 0),
331 F_B(HIS_STATS_R, 0, 1, 0),
332 F_B(HIS_STATS_r, 0, 1, 0),
333+ F_B(HIS_STATS_S, 0, 1, 0),
334 F_B(HIS_STATS_s, 0, 1, 0),
335 F_B(HIS_STATS_t, 0, 1, 0),
336 F_B(HIS_STATS_T, 0, 1, 0),
d61bc4d5 337diff -r 2267c134dc0d ircd/ircd_log.c
338--- a/ircd/ircd_log.c Tue Jan 27 18:19:11 2009 +0100
339+++ b/ircd/ircd_log.c Tue Jan 27 18:25:58 2009 +0100
0c63b280 340@@ -154,6 +154,7 @@
341 S(OPERMODE, -1, SNO_HACK4),
342 S(GLINE, -1, SNO_GLINE),
343 S(JUPE, -1, SNO_NETWORK),
344+ S(SPLIT, -1, SNO_NETWORK),
345 S(WHO, -1, 0),
346 S(NETWORK, -1, SNO_NETWORK),
347 S(OPERKILL, -1, 0),
d61bc4d5 348diff -r 2267c134dc0d ircd/m_endburst.c
349--- a/ircd/m_endburst.c Tue Jan 27 18:19:11 2009 +0100
350+++ b/ircd/m_endburst.c Tue Jan 27 18:25:58 2009 +0100
12e82c05 351@@ -85,6 +85,7 @@
352 #include "client.h"
353 #include "hash.h"
354 #include "ircd.h"
355+#include "ircd_features.h"
356 #include "ircd_log.h"
357 #include "ircd_reply.h"
358 #include "ircd_string.h"
359@@ -92,6 +93,7 @@
360 #include "numeric.h"
361 #include "numnicks.h"
362 #include "send.h"
363+#include "split.h"
364
365 /* #include <assert.h> -- Now using assert in ircd_log.h */
366
367@@ -125,6 +127,7 @@
368 int ms_end_of_burst(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
369 {
370 struct Channel *chan, *next_chan;
371+ int split;
372
373 assert(0 != cptr);
374 assert(0 != sptr);
375@@ -135,6 +138,10 @@
376 dump_map(sptr, "*", 0, report_new_links, 0);
377 sendto_opmask_butone(0, SNO_NETWORK, "Completed net.burst from %C.",
378 sptr);
379+ /* cleanup SPLITs, but only bother ops when FEAT_SPLIT is enabled. */
0c63b280 380+ split = split_netmerge(sptr);
12e82c05 381+ if (feature_bool(FEAT_SPLIT))
382+ sendto_opmask_butone(0, SNO_NETWORK, "Removed %d SPLIT entries.", split);
383 if (MyConnect(sptr))
384 sendcmdto_one(&me, CMD_END_OF_BURST_ACK, sptr, "");
385
d61bc4d5 386diff -r 2267c134dc0d ircd/m_reburst.c
387--- a/ircd/m_reburst.c Tue Jan 27 18:19:11 2009 +0100
388+++ b/ircd/m_reburst.c Tue Jan 27 18:25:58 2009 +0100
12e82c05 389@@ -102,6 +102,7 @@
390 #include "ircd_snprintf.h"
391 #include "gline.h"
392 #include "jupe.h"
393+#include "split.h"
394
395 /* #include <assert.h> -- Now using assert in ircd_log.h */
396 #include <stdlib.h>
397@@ -130,6 +131,10 @@
398 case 'J':
399 jupe_burst(sptr);
400 break;
401+ case 's':
402+ case 'S':
403+ split_burst(sptr);
404+ break;
405 default:
406 break;
407 }
d61bc4d5 408diff -r 2267c134dc0d ircd/m_server.c
409--- a/ircd/m_server.c Tue Jan 27 18:19:11 2009 +0100
410+++ b/ircd/m_server.c Tue Jan 27 18:25:58 2009 +0100
0c63b280 411@@ -47,6 +47,7 @@
412 #include "s_misc.h"
413 #include "s_serv.h"
414 #include "send.h"
415+#include "split.h"
416 #include "userload.h"
417
418 /* #include <assert.h> -- Now using assert in ircd_log.h */
419@@ -764,6 +765,9 @@
420 sendto_opmask_butone(0, SNO_NETWORK, "Net junction: %s %s",
421 cli_name(sptr), cli_name(acptr));
422 }
423+ /* new server - mark SPLIT for this server */
424+ split_newserver(acptr);
425+
426 /*
427 * Old sendto_serv_but_one() call removed because we now need to send
428 * different names to different servers (domain name matching).
d61bc4d5 429diff -r 2267c134dc0d ircd/m_split.c
12e82c05 430--- /dev/null Thu Jan 01 00:00:00 1970 +0000
d61bc4d5 431+++ b/ircd/m_split.c Tue Jan 27 18:25:58 2009 +0100
55404221 432@@ -0,0 +1,376 @@
12e82c05 433+/*
434+ * IRC - Internet Relay Chat, ircd/m_split.c
435+ * Copyright (C) 1990 Jarkko Oikarinen and
436+ * University of Oulu, Computing Center
437+ * Copyright (C) 2000 Kevin L. Mitchell <klmitch@mit.edu>
438+ *
439+ * See file AUTHORS in IRC package for additional names of
440+ * the programmers.
441+ *
442+ * This program is free software; you can redistribute it and/or modify
443+ * it under the terms of the GNU General Public License as published by
444+ * the Free Software Foundation; either version 1, or (at your option)
445+ * any later version.
446+ *
447+ * This program is distributed in the hope that it will be useful,
448+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
449+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
450+ * GNU General Public License for more details.
451+ *
452+ * You should have received a copy of the GNU General Public License
453+ * along with this program; if not, write to the Free Software
454+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
455+ *
456+ * $Id: m_split.c 1737 2006-12-19 05:20:48Z entrope $
457+ */
458+
459+/*
460+ * m_functions execute protocol messages on this server:
461+ *
462+ * cptr is always NON-NULL, pointing to a *LOCAL* client
463+ * structure (with an open socket connected!). This
464+ * identifies the physical socket where the message
465+ * originated (or which caused the m_function to be
466+ * executed--some m_functions may call others...).
467+ *
468+ * sptr is the source of the message, defined by the
469+ * prefix part of the message if present. If not
470+ * or prefix not found, then sptr==cptr.
471+ *
472+ * (!IsServer(cptr)) => (cptr == sptr), because
473+ * prefixes are taken *only* from servers...
474+ *
475+ * (IsServer(cptr))
476+ * (sptr == cptr) => the message didn't
477+ * have the prefix.
478+ *
479+ * (sptr != cptr && IsServer(sptr) means
480+ * the prefix specified servername. (?)
481+ *
482+ * (sptr != cptr && !IsServer(sptr) means
483+ * that message originated from a remote
484+ * user (not local).
485+ *
486+ * combining
487+ *
488+ * (!IsServer(sptr)) means that, sptr can safely
489+ * taken as defining the target structure of the
490+ * message in this server.
491+ *
492+ * *Always* true (if 'parse' and others are working correct):
493+ *
494+ * 1) sptr->from == cptr (note: cptr->from == cptr)
495+ *
496+ * 2) MyConnect(sptr) <=> sptr == cptr (e.g. sptr
497+ * *cannot* be a local connection, unless it's
498+ * actually cptr!). [MyConnect(x) should probably
499+ * be defined as (x == x->from) --msa ]
500+ *
501+ * parc number of variable parameter strings (if zero,
502+ * parv is allowed to be NULL)
503+ *
504+ * parv a NULL terminated list of parameter pointers,
505+ *
506+ * parv[0], sender (prefix string), if not present
507+ * this points to an empty string.
508+ * parv[1]...parv[parc-1]
509+ * pointers to additional parameters
510+ * parv[parc] == NULL, *always*
511+ *
512+ * note: it is guaranteed that parv[0]..parv[parc-1] are all
513+ * non-NULL pointers.
514+ */
515+#include "config.h"
516+
517+#include "client.h"
518+#include "split.h"
519+#include "hash.h"
520+#include "ircd.h"
521+#include "ircd_features.h"
522+#include "ircd_log.h"
523+#include "ircd_reply.h"
524+#include "ircd_string.h"
525+#include "match.h"
526+#include "msg.h"
527+#include "numeric.h"
528+#include "numnicks.h"
529+#include "s_conf.h"
530+#include "s_debug.h"
531+#include "s_misc.h"
532+#include "send.h"
533+
534+/* #include <assert.h> -- Now using assert in ircd_log.h */
535+#include <stdlib.h>
536+#include <string.h>
537+
538+/*
539+ * ms_split - server message handler
540+ *
541+ * parv[0] = Send prefix
542+ * parv[1] = (+|-)<server name>
543+ * parv[2] = Creation time
544+ * parv[3] = Expiration time
545+ * parv[4] = Last modification time
546+ * parv[5] = Life time
547+ * parv[6] = Comment
548+ *
549+ */
550+int ms_split(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
551+{
552+ struct Client *acptr = 0;
553+ struct Split *asplit = 0;
554+ unsigned int flags = 0;
555+ enum SplitAction action = SPLIT_MODIFY;
556+ time_t creation = 0, expire = 0, lastmod = 0, lifetime = 0;
55404221 557+ char *server = 0, *tmp = 0;
12e82c05 558+ const char *reason = "No reason";
559+
55404221 560+ /* reason is optional - for lazy services, we always send it */
561+ if (parc < 5)
12e82c05 562+ return need_more_params(sptr, "SPLIT");
563+
564+ if (*server == '!') {
565+ server++;
566+ action = SPLIT_REMOVE; /* removing entry */
567+ }
568+
569+ switch (*server) { /* handle + and - */
570+ case '+': /* activate the split entry */
571+ if (action != SPLIT_REMOVE)
572+ action = SPLIT_ACTIVATE;
573+ server++;
574+ break;
575+
576+ case '-': /* deactivate the entry */
577+ if (action != SPLIT_REMOVE)
578+ action = SPLIT_DEACTIVATE;
579+ server++;
580+ break;
581+ }
582+
583+ /* Next, try to find the split entry... */
55404221 584+ server = parv[1];
12e82c05 585+ asplit = split_find(server);
586+
587+ /* We now have all the pieces to tell us what we've got; let's put
588+ * it all together and convert the rest of the arguments.
589+ */
590+
591+ /* can't modify a split entry that doesn't exist, so remap to activate */
592+ if (!asplit && action == SPLIT_MODIFY)
593+ action = SPLIT_ACTIVATE;
594+
55404221 595+ /* set all flags for modification */
596+ if (asplit && action != SPLIT_REMOVE)
597+ flags = SPLIT_UPDATE;
598+
599+ /* set the things we need */
12e82c05 600+ creation = atoi(parv[2]);
601+ expire = atoi(parv[3]);
602+ lastmod = atoi(parv[4]);
603+ lifetime = atoi(parv[5]);
55404221 604+ /* got a reason too */
605+ if (parc < 6)
606+ reason = parv[parc - 1];
12e82c05 607+
608+ Debug((DEBUG_DEBUG, "I have a SPLIT I am acting upon now; "
609+ "server %s, action %s, creation %Tu, expire %Tu, "
610+ "lastmod %Tu, lifetime %Tu, reason: %s; split %s!", server,
611+ action == SPLIT_REMOVE ? "!-" :
612+ (action == SPLIT_ACTIVATE ? "+" :
613+ (action == SPLIT_DEACTIVATE ? "-" : "(MODIFY)")),
614+ creation, expire, lastmod, lifetime, reason,
615+ asplit ? "EXISTS" : "does not exist"));
616+
617+ /* OK, at this point, we have converted all available parameters.
618+ * Let's actually do the action!
619+ */
620+ if (asplit) {
621+ if (action == SPLIT_REMOVE)
622+ return split_remove(cptr, sptr, asplit, reason);
623+ return split_modify(cptr, sptr, asplit, action, reason, creation, expire,
624+ lastmod, lifetime, flags);
625+ }
626+
55404221 627+ /* desynch or cross - we do not have it so we cannot remove it */
628+ /* TODO: manually propagate the message ?
629+ * ..but if we do not have it, can our downlinks have it?
630+ * they could if my oper force removed it earlier, and then my downlinks linked
631+ * no, then they would have bursted it again to us.. argh
632+ */
633+ if (!asplit && action == SPLIT_REMOVE)
634+ return 0;
635+
12e82c05 636+ assert(action != SPLIT_MODIFY);
55404221 637+ assert(action != SPLIT_REMOVE);
12e82c05 638+
55404221 639+ /* only give one flag when needed - SPLIT_ACTIVE */
12e82c05 640+ return split_add(cptr, sptr, server, reason, creation, expire, lastmod, lifetime,
55404221 641+ (flags & SPLIT_ACTIVATE) ? SPLIT_ACTIVE : 0);
12e82c05 642+}
643+
644+
645+/*
646+ * mo_split - oper message handler
647+ *
648+ * Local listing: 1 or 2 params
649+ * parv[0] = Send prefix
650+ * parv[1] = [Server or mask to match]
651+ *
652+ * Add or modify entry: 3, 4 or 5 params (3 is * then)
653+ * parv[0] = Send prefix
654+ * parv[1] = [+|-]<server name>
655+ * parv[2] = [Expiration offset] (required for new)
656+ * parv[3] = [Comment] (required for new)
657+ *
658+ */
659+int mo_split(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
660+{
661+ struct Client *acptr = 0;
662+ struct Split *asplit = 0;
663+ unsigned int flags = 0;
664+ enum SplitAction action = SPLIT_MODIFY;
0c63b280 665+ time_t expire = 0, lastmod = TStime(), creation = TStime();
12e82c05 666+ char *server = parv[1], *end;
667+ const char *reason = NULL;
668+
55404221 669+ /* listing */
12e82c05 670+ if (parc < 2) {
671+ if (!HasPriv(sptr, PRIV_ROUTEINFO))
672+ return send_reply(sptr, ERR_NOPRIVILEGES);
673+ else
674+ return split_list(sptr, 0);
675+ }
676+
55404221 677+ /* force removal */
12e82c05 678+ if (*server == '!') {
679+ server++;
55404221 680+ action = SPLIT_REMOVE;
12e82c05 681+ }
682+
683+ switch (*server) { /* handle + and - */
684+ case '+': /* activate the split entry */
685+ if (action != SPLIT_REMOVE)
686+ action = SPLIT_ACTIVATE;
687+ server++;
688+ break;
689+
690+ case '-': /* deactivate the split entry */
691+ if (action != SPLIT_REMOVE)
692+ action = SPLIT_DEACTIVATE;
693+ server++;
694+ break;
695+ }
12e82c05 696+
55404221 697+ /* user wants listing */
698+ if (action == SPLIT_MODIFY && parc == 2)
699+ return split_list(sptr, server);
700+
701+ /* if we have an expire, this must be it */
702+ if (parc > 2)
703+ expire = strtol(parv[2], &end, 10); /* and the expiration */
704+
705+ /* got reason and expire */
706+ if (parc > 3) {
707+ flags |= SPLIT_EXPIRE;
708+ flags |= SPLIT_REASON;
709+ }
710+ /* got reason or expire */
711+ else if (parc > 2) {
712+ if (*end != '\0')
12e82c05 713+ flags |= SPLIT_REASON;
55404221 714+ else
715+ flags |= SPLIT_EXPIRE;
716+ }
717+
718+ /* set reason */
719+ if (flags & SPLIT_REASON) {
12e82c05 720+ reason = parv[parc - 1];
55404221 721+ if (reason[0] == '\0') /* reason is empty */
722+ flags &= ~SPLIT_REASON;
12e82c05 723+ }
12e82c05 724+
55404221 725+ /* bad expire */
726+ if (flags & SPLIT_EXPIRE && *end != '\0')
727+ return send_reply(sptr, SND_EXPLICIT | ERR_BADEXPIRE, "%s :Bad expire time", parv[2]);
728+
729+ /* require a reason for forced removal */
730+ if (!(flags & SPLIT_REASON) && action == SPLIT_REMOVE)
731+ return need_more_params(sptr, "SPLIT");
732+
733+ /* we got expire */
734+ if (flags & SPLIT_EXPIRE) {
735+ if (expire == 0) /* dummy value 0 given, no change to expire */
736+ flags &= ~SPLIT_EXPIRE;
737+ else /* turn expire into timestamp */
738+ expire += TStime();
739+ }
740+
741+ /* check feature and privs */
12e82c05 742+ if (!feature_bool(FEAT_SPLIT)) /* TODO: but allow force removal? */
743+ return send_reply(sptr, ERR_DISABLED, "SPLIT");
744+ else if (!HasPriv(sptr, PRIV_SERVERINFO)) /* TODO: create PRIV_SPLIT - need help there */
745+ return send_reply(sptr, ERR_NOPRIVILEGES);
746+
55404221 747+ /* find the split */
12e82c05 748+ asplit = split_find(server);
749+
750+ /* We now have all the pieces to tell us what we've got; let's put
751+ * it all together and convert the rest of the arguments.
752+ */
753+
55404221 754+ /* SPLIT not found and thus we cannot:
755+ * remove SPLIT we do not have
756+ * add new SPLIT without expire and reason
12e82c05 757+ */
758+ if (!asplit &&
759+ ((action == SPLIT_REMOVE) ||
760+ (action == SPLIT_ACTIVATE && !reason) ||
761+ (action == SPLIT_DEACTIVATE && !reason) ||
762+ (action == SPLIT_MODIFY && !reason)))
763+ return send_reply(sptr, ERR_NOSUCHSPLIT, server);
764+
765+ /* can't modify a split entry that doesn't exist, so remap to activate */
766+ if (!asplit && action == SPLIT_MODIFY)
767+ action = SPLIT_ACTIVATE;
768+
769+ Debug((DEBUG_DEBUG, "I have a SPLIT I am acting upon now; "
770+ "server %s, action %s, expire %Tu, "
771+ "reason: %s; split %s! (fields present: %s %s)", server,
772+ action == SPLIT_REMOVE ? "!-" :
773+ (action == SPLIT_ACTIVATE ? "+" :
774+ (action == SPLIT_DEACTIVATE ? "-" : "(MODIFY)")),
775+ expire, reason, asplit ? "EXISTS" : "does not exist",
776+ flags & SPLIT_EXPIRE ? "expire" : "",
777+ flags & SPLIT_REASON ? "reason" : ""));
778+
779+ if (asplit) { /* modifying an existing SPLIT */
780+ if (action == SPLIT_REMOVE)
781+ return split_remove(cptr, sptr, asplit, reason);
782+ return split_modify(cptr, sptr, asplit, action, reason,
783+ asplit->sp_creation, expire, lastmod, asplit->sp_lifetime, flags);
784+ }
785+
786+ assert(action != SPLIT_MODIFY);
787+ assert(action != SPLIT_REMOVE);
788+
789+ /* create a new SPLIT */
790+ return split_add(cptr, sptr, server, reason,
791+ creation, expire, lastmod, expire,
792+ flags | ((action == SPLIT_ACTIVATE) ? SPLIT_ACTIVE : 0));
793+}
794+
795+/*
796+ * m_split - user message handler
797+ *
798+ * parv[0] = Send prefix
12e82c05 799+ * parv[1] = [<server name>]
800+ *
801+ */
802+int m_split(struct Client* cptr, struct Client* sptr, int parc, char* parv[])
803+{
804+ if (parc < 2)
805+ return split_list(sptr, 0);
806+
807+ return split_list(sptr, parv[1]);
808+}
d61bc4d5 809diff -r 2267c134dc0d ircd/parse.c
810--- a/ircd/parse.c Tue Jan 27 18:19:11 2009 +0100
811+++ b/ircd/parse.c Tue Jan 27 18:25:58 2009 +0100
12e82c05 812@@ -505,6 +505,13 @@
a87bc2c2 813 /* UNREG, CLIENT, SERVER, OPER, SERVICE, HELP */
814 { m_unregistered, m_not_oper, ms_jupe, mo_jupe, m_ignore, mh_jupe }
815 },
12e82c05 816+ {
817+ MSG_SPLIT,
818+ TOK_SPLIT,
819+ 0, MAXPARA, MFLG_SLOW, 0, NULL,
a87bc2c2 820+ /* UNREG, CLIENT, SERVER, OPER, SERVICE, HELP */
821+ { m_unregistered, m_not_oper, ms_split, mo_split, m_ignore, mh_nohelp }
822+ },
12e82c05 823 {
824 MSG_OPMODE,
a87bc2c2 825 TOK_OPMODE,
d61bc4d5 826diff -r 2267c134dc0d ircd/s_conf.c
827--- a/ircd/s_conf.c Tue Jan 27 18:19:11 2009 +0100
828+++ b/ircd/s_conf.c Tue Jan 27 18:25:58 2009 +0100
12e82c05 829@@ -53,6 +53,7 @@
830 #include "s_debug.h"
831 #include "s_misc.h"
832 #include "send.h"
833+#include "split.h"
834 #include "struct.h"
835 #include "sys.h"
836
837@@ -1005,6 +1006,7 @@
838 }
839
840 attach_conf_uworld(&me);
841+ split_conf();
842
843 return ret;
844 }
d61bc4d5 845diff -r 2267c134dc0d ircd/s_debug.c
846--- a/ircd/s_debug.c Tue Jan 27 18:19:11 2009 +0100
847+++ b/ircd/s_debug.c Tue Jan 27 18:25:58 2009 +0100
12e82c05 848@@ -48,6 +48,7 @@
849 #include "s_user.h"
850 #include "s_stats.h"
851 #include "send.h"
852+#include "split.h"
853 #include "struct.h"
854 #include "sys.h"
d61bc4d5 855 #include "welcome.h"
856@@ -233,6 +234,7 @@
12e82c05 857 wwa = 0, /* whowas aways */
858 gl = 0, /* glines */
d61bc4d5 859 ju = 0, /* jupes */
860+ sp = 0, /* split entries */
861 we = 0; /* welcome messages */
12e82c05 862
863 size_t chm = 0, /* memory used by channels */
d61bc4d5 864@@ -246,6 +248,7 @@
12e82c05 865 wwm = 0, /* whowas array memory used */
866 glm = 0, /* memory used by glines */
867 jum = 0, /* memory used by jupes */
868+ spm = 0, /* memory used by split entries */
d61bc4d5 869 wem = 0, /* memory used by welcome messages */
12e82c05 870 com = 0, /* memory used by conf lines */
871 dbufs_allocated = 0, /* memory used by dbufs */
d61bc4d5 872@@ -351,10 +354,11 @@
12e82c05 873
874 gl = gline_memory_count(&glm);
875 ju = jupe_memory_count(&jum);
876+ sp = split_memory_count(&spm);
d61bc4d5 877 we = welcome_memory_count(&wem);
12e82c05 878 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
d61bc4d5 879- ":Glines %d(%zu) Jupes %d(%zu) WelcomeMessages %d(%zu)",
880- gl, glm, ju, jum, we, wem);
881+ ":Glines %d(%zu) Jupes %d(%zu) Splits %d(%zu) WelcomeMessages %d(%zu)",
882+ gl, glm, ju, jum, sp, spm, we, wem);
12e82c05 883
884 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
885 ":Hash: client %d(%zu), chan is the same", HASHSIZE,
d61bc4d5 886diff -r 2267c134dc0d ircd/s_err.c
887--- a/ircd/s_err.c Tue Jan 27 18:19:11 2009 +0100
888+++ b/ircd/s_err.c Tue Jan 27 18:25:58 2009 +0100
12e82c05 889@@ -490,7 +490,7 @@
890 /* 228 */
891 { RPL_STATSQLINE, "Q %s :%s", "228" },
892 /* 229 */
893- { 0 },
894+ { RPL_STATSSPLIT, "S %s %d %d %d %d %c :%s", "229" },
895 /* 230 */
65b70298 896 { RPL_STATSHEADER, 0, "230" },
12e82c05 897 /* 231 */
898@@ -588,9 +588,9 @@
899 /* 277 */
900 { 0 },
901 /* 278 */
902- { 0 },
903+ { RPL_SPLITLIST, "%s %Tu %Tu %Tu %Tu %c :%s", "278" },
904 /* 279 */
905- { 0 },
906+ { RPL_ENDOFSPLITLIST, ":End of Split List", "279" },
907 /* 280 */
65b70298 908 { RPL_GLIST, "%s%s%s%s%s %Tu %Tu %Tu %s %s%s%c :%s", "280" },
12e82c05 909 /* 281 */
910@@ -1052,7 +1052,7 @@
911 /* 509 */
d61bc4d5 912 { ERR_NOSUCHWELCOME, "%s :No such welcome", "509" },
12e82c05 913 /* 510 */
914- { 0 },
915+ { ERR_NOSUCHSPLIT, "%s :No such split", "510" },
916 /* 511 */
917 { ERR_SILELISTFULL, "%s :Your silence list is full", "511" },
918 /* 512 */
d61bc4d5 919diff -r 2267c134dc0d ircd/s_misc.c
920--- a/ircd/s_misc.c Tue Jan 27 18:19:11 2009 +0100
921+++ b/ircd/s_misc.c Tue Jan 27 18:25:58 2009 +0100
12e82c05 922@@ -53,6 +53,7 @@
923 #include "s_stats.h"
924 #include "s_user.h"
925 #include "send.h"
926+#include "split.h"
927 #include "struct.h"
928 #include "sys.h"
929 #include "uping.h"
930@@ -391,6 +392,7 @@
931 time_t on_for;
932
933 char comment1[HOSTLEN + HOSTLEN + 2];
934+ char splitreason[BUFSIZE];
935 assert(killer);
936 if (MyConnect(victim))
937 {
7efbed3b 938@@ -497,6 +499,15 @@
12e82c05 939 sendto_opmask_butone(0, SNO_NETWORK, "Net break: %C %C (%s)",
940 cli_serv(victim)->up, victim, comment);
941 dump_map(victim, "*", 0, report_lost_links, 0);
942+ if (feature_bool(FEAT_SPLIT)) {
7efbed3b 943+ /* TODO: remote & local SQUIT ? servername oper is on? */
12e82c05 944+ ircd_snprintf(0, splitreason, sizeof(splitreason),
945+ "Net break: %C %C (%s%s%s%s)", cli_serv(victim)->up, victim,
946+ IsUser(killer) ? "SQUIT by " : "", IsUser(killer) ? cli_name(killer) : "",
947+ IsUser(killer) ? ": " : "", comment);
948+ sendto_opmask_butone(0, SNO_NETWORK, "Created %d SPLIT entries.",
0c63b280 949+ split_netbreak(victim, splitreason));
12e82c05 950+ }
951 }
952
953 /*
d61bc4d5 954diff -r 2267c134dc0d ircd/s_serv.c
955--- a/ircd/s_serv.c Tue Jan 27 18:19:11 2009 +0100
956+++ b/ircd/s_serv.c Tue Jan 27 18:25:58 2009 +0100
12e82c05 957@@ -54,6 +54,7 @@
958 #include "s_misc.h"
959 #include "s_user.h"
960 #include "send.h"
961+#include "split.h"
962 #include "struct.h"
963 #include "sys.h"
964 #include "userload.h"
d61bc4d5 965@@ -197,6 +198,7 @@
12e82c05 966 */
967 gline_burst(cptr);
968 jupe_burst(cptr);
969+ split_burst(cptr);
d61bc4d5 970 welcome_burst(cptr);
12e82c05 971
972 /*
d61bc4d5 973diff -r 2267c134dc0d ircd/s_stats.c
974--- a/ircd/s_stats.c Tue Jan 27 18:19:11 2009 +0100
975+++ b/ircd/s_stats.c Tue Jan 27 18:25:58 2009 +0100
12e82c05 976@@ -52,6 +52,7 @@
977 #include "s_stats.h"
978 #include "s_user.h"
979 #include "send.h"
980+#include "split.h"
981 #include "struct.h"
982 #include "userload.h"
d61bc4d5 983 #include "welcome.h"
984@@ -669,7 +670,10 @@
12e82c05 985 send_usage, 0,
986 "System resource usage (Debug only)." },
987 #endif
988- { 's', "spoofhosts", (STAT_FLAG_OPERFEAT | STAT_FLAG_VARPARAM), FEAT_HIS_STATS_s,
989+ { 'S', "splits", (STAT_FLAG_OPERFEAT | STAT_FLAG_VARPARAM | STAT_FLAG_CASESENS), FEAT_HIS_STATS_S,
990+ split_stats, 0,
991+ "Server SPLITs information."},
992+ { 's', "spoofhosts", (STAT_FLAG_OPERFEAT | STAT_FLAG_VARPARAM | STAT_FLAG_CASESENS), FEAT_HIS_STATS_s,
993 stats_sline, 0,
994 "Spoofed hosts information." },
995 { 'T', "motds", (STAT_FLAG_OPERFEAT | STAT_FLAG_CASESENS), FEAT_HIS_STATS_T,
d61bc4d5 996diff -r 2267c134dc0d ircd/split.c
12e82c05 997--- /dev/null Thu Jan 01 00:00:00 1970 +0000
d61bc4d5 998+++ b/ircd/split.c Tue Jan 27 18:25:58 2009 +0100
55404221 999@@ -0,0 +1,786 @@
12e82c05 1000+/*
1001+ * IRC - Internet Relay Chat, ircd/split.c
1002+ * Copyright (C) 1990 Jarkko Oikarinen and
1003+ * University of Oulu, Finland
1004+ * Copyright (C) 2000 Kevin L. Mitchell <klmitch@mit.edu>
1005+ *
1006+ * This program is free software; you can redistribute it and/or modify
1007+ * it under the terms of the GNU General Public License as published by
1008+ * the Free Software Foundation; either version 1, or (at your option)
1009+ * any later version.
1010+ *
1011+ * This program is distributed in the hope that it will be useful,
1012+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
1013+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
1014+ * GNU General Public License for more details.
1015+ *
1016+ * You should have received a copy of the GNU General Public License
1017+ * along with this program; if not, write to the Free Software
1018+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
1019+ */
1020+/** @file
1021+ * @brief Implementation of split server handling functions.
1022+ * @version $Id: split.c 1633 2006-03-25 03:46:56Z entrope $
1023+ */
1024+#include "config.h"
1025+
1026+#include "split.h"
1027+#include "client.h"
1028+#include "hash.h"
1029+#include "ircd.h"
1030+#include "ircd_alloc.h"
1031+#include "ircd_features.h"
1032+#include "ircd_log.h"
1033+#include "ircd_reply.h"
1034+#include "ircd_string.h"
1035+#include "list.h"
1036+#include "match.h"
1037+#include "msg.h"
1038+#include "numeric.h"
1039+#include "numnicks.h"
1040+#include "s_conf.h"
1041+#include "s_bsd.h"
1042+#include "s_debug.h"
1043+#include "s_misc.h"
1044+#include "send.h"
1045+#include "struct.h"
1046+#include "sys.h" /* FALSE bleah */
1047+
1048+/* #include <assert.h> -- Now using assert in ircd_log.h */
1049+#include <string.h>
1050+
1051+/** List of split entries. */
1052+static struct Split *GlobalSplitList = 0;
1053+
1054+/** Allocate a new Split entry with the given parameters.
1055+ * @param[in] server Server name for split entry.
1056+ * @param[in] reason Reason for the split entry.
1057+ * @param[in] creation Creation time for split entry.
1058+ * @param[in] expire Expiration time for split entry.
1059+ * @param[in] lastmod Last modification time for split entry.
1060+ * @param[in] lifetime Life time for split entry.
1061+ * @param[in] flags Flags to set for the split entry.
1062+ */
1063+static struct Split *
1064+split_make(char *server, const char *reason,
1065+ time_t creation, time_t expire, time_t lastmod, time_t lifetime,
1066+ unsigned int flags)
1067+{
1068+ struct Split *asplit;
1069+
1070+ asplit = (struct Split*) MyMalloc(sizeof(struct Split)); /* alloc memory */
1071+ assert(0 != asplit);
1072+
1073+ memset(asplit, 0, sizeof(*asplit));
1074+ /* TODO: some limit for servername length? HOSTLEN? */
1075+ DupString(asplit->sp_server, server); /* copy vital information */
0c63b280 1076+ /* TODO: some limit for reason length? QUITLEN TOPICLEN? */
65b70298 1077+ /* TODO: prefix the reason here with the opername/ID? */
12e82c05 1078+ DupString(asplit->sp_reason, reason);
1079+ /* TODO: what we use creation for and do we need it? */
1080+ asplit->sp_creation = creation;
1081+ asplit->sp_expire = expire;
1082+ /* TODO: are we using nettime etc.? CurrentTime is used. */
65b70298 1083+ /* TODO: TStime() is CurrentTime + TSoffset */
12e82c05 1084+ asplit->sp_lastmod = lastmod;
1085+ asplit->sp_lifetime = lifetime;
12e82c05 1086+ asplit->sp_flags = flags & SPLIT_ACTIVE; /* set split flags */
1087+
1088+ asplit->sp_next = GlobalSplitList; /* link it into the list */
1089+ asplit->sp_prev_p = &GlobalSplitList;
1090+ if (GlobalSplitList)
1091+ GlobalSplitList->sp_prev_p = &asplit->sp_next;
1092+ GlobalSplitList = asplit;
1093+
1094+ return asplit;
1095+}
1096+
1097+/** Forward a split entry to another server.
1098+ * @param[in] cptr Local client that sent us the split entry.
1099+ * @param[in] sptr Originator of the split entry.
1100+ * @param[in] split Split entry to forward.
1101+ * @param[in] reason Reason to send upstream (used by split_remove)
1102+ */
1103+static void
1104+split_propagate(struct Client *cptr, struct Client *sptr,
1105+ struct Split *split, const char *reason)
1106+{
1107+ sendcmdto_serv_butone(sptr, CMD_SPLIT, cptr, "%s%c%s %Tu %Tu %Tu %Tu :%s",
1108+ SplitIsRemoving(split) ? "!" : "",
1109+ SplitIsActive(split) && !SplitIsRemoving(split) ? '+' : '-', /* always !- not !+ */
1110+ split->sp_server, split->sp_creation, split->sp_expire,
1111+ split->sp_lastmod, split->sp_lifetime,
65b70298 1112+ /* TODO: does reason ? reason : split->sp_reason work too? */
12e82c05 1113+ reason != NULL ? reason : split->sp_reason);
1114+}
1115+
1116+/** Add a new server split entry.
1117+ * @param[in] cptr Local client that sent us the split entry.
1118+ * @param[in] sptr Originator of the split entry.
1119+ * @param[in] server Server name to split entry.
1120+ * @param[in] reason Reason for the split entry.
1121+ * @param[in] expire Expiration timestamp.
1122+ * @param[in] lastmod Last modification timestamp.
1123+ * @param[in] flags Flags to set on the split entry.
1124+ * @return Zero
1125+ */
1126+int
1127+split_add(struct Client *cptr, struct Client *sptr, char *server, const char *reason,
1128+ time_t creation, time_t expire, time_t lastmod, time_t lifetime,
1129+ unsigned int flags)
1130+{
1131+
12e82c05 1132+ struct Split *asplit;
1133+ struct Client *acptr;
55404221 1134+ char noreason[BUFSIZE];
12e82c05 1135+
55404221 1136+ assert(0 != cptr);
1137+ assert(0 != sptr);
12e82c05 1138+ assert(0 != server);
1139+ assert(0 != reason);
12e82c05 1140+
1141+ Debug((DEBUG_DEBUG, "split_add(\"%s\", \"%s\", \"%s\", \"%s\", %Tu, %Tu, %Tu, "
1142+ "%Tu, 0x%04x)", cli_name(cptr), cli_name(sptr), server, reason,
1143+ creation, expire, lastmod, lifetime, flags));
1144+
1145+ /* not adding SPLIT for server that is linked
1146+ * if sptr is my user throw error
1147+ * otherwise ignore - SERVER and SPLIT messages can cross,
1148+ * or a server is bursting and it will see our end and destroy the SPLITs
1149+ */
1150+ if ((acptr = FindServer(server))) {
1151+ if (MyUser(sptr))
1152+ sendcmdto_one(&me, CMD_NOTICE, sptr,
1153+ "%C :Cannot add SPLIT %s - server is linked.", sptr, server);
1154+ return 0;
1155+ }
1156+
1157+ /*
1158+ * You cannot set a negative (or zero) duration, nor can you set an
1159+ * duration greater than SPLIT_MAX_EXPIRE.
1160+ */
0c63b280 1161+ if (expire - TStime() <= 0 || expire - TStime() > SPLIT_MAX_EXPIRE) {
55404221 1162+ /* TODO: cptr or sptr here? */
1163+ if (MyUser(sptr))
0c63b280 1164+ return send_reply(cptr, ERR_BADEXPIRE, expire - TStime());
1165+ if (lifetime <= TStime()) /* no point going further */
12e82c05 1166+ /* CHECK: sptr may have the wrong idea about the nettime?
1167+ * or we could be wrong?
12e82c05 1168+ * perhaps raise some sort of warning to ops
65b70298 1169+ */
12e82c05 1170+ return 0;
1171+ }
1172+
55404221 1173+ /* empty reason */
1174+ if (reason[0] == '\0')
1175+ ircd_snprintf(0, noreason, sizeof(noreason), "%C gave no reason.", sptr);
1176+
65b70298 1177+ /* TODO: add opername */
12e82c05 1178+ /* inform ops and log it */
1179+ sendto_opmask_butone(0, SNO_NETWORK, "%s adding%sSPLIT for %s, expiring at %Tu: %s",
1180+ (feature_bool(FEAT_HIS_SNOTICES) || IsServer(sptr)) ?
1181+ cli_name(sptr) : cli_name((cli_user(sptr))->server),
1182+ !(flags & SPLIT_ACTIVE) ? " deactivated " : " ",
55404221 1183+ server, expire, reason[0] == '\0' ? noreason : reason);
12e82c05 1184+
0c63b280 1185+ log_write(LS_SPLIT, L_INFO, LOG_NOSNOTICE,
12e82c05 1186+ "%#C adding%sSPLIT for %s, expiring at %Tu: %s",
1187+ sptr, !(flags & SPLIT_ACTIVE) ? " deactivated " : " ",
55404221 1188+ server, expire, reason[0] == '\0' ? noreason : reason);
12e82c05 1189+
1190+ /* make the split entry */
55404221 1191+ asplit = split_make(server, reason[0] == '\0' ? noreason : reason,
1192+ creation, expire, lastmod, lifetime, flags);
12e82c05 1193+
1194+ assert(asplit);
1195+
1196+ /* and propagate it */
1197+ split_propagate(cptr, sptr, asplit, NULL);
1198+
1199+ return 0;
1200+}
1201+
1202+
1203+/** Modify a split entry.
1204+ * @param[in] cptr Client that sent us the split modification.
1205+ * @param[in] sptr Client that originated the split modification.
1206+ * @param[in] split Split entry being modified.
1207+ * @param[in] action Resultant status of the G-line.
1208+ * @param[in] reason Reason.
1209+ * @param[in] expire Expiration time.
1210+ * @param[in] lastmod Last modification time.
1211+ * @param[in] lifetime Lifetime.
1212+ * @param[in] flags Bitwise combination of SPLIT_* flags.
1213+ * @return Zero.
1214+ */
1215+int
1216+split_modify(struct Client *cptr, struct Client *sptr, struct Split *split,
1217+ enum SplitAction action, const char *reason,
1218+ time_t creation, time_t expire, time_t lastmod, time_t lifetime,
1219+ unsigned int flags)
1220+{
1221+ struct Client* acptr;
1222+ char buf[BUFSIZE];
1223+ int pos = 0;
1224+
55404221 1225+ assert(0 != cptr);
1226+ assert(0 != sptr);
1227+ assert(0 != split);
12e82c05 1228+
55404221 1229+ Debug((DEBUG_DEBUG, "split_modify(cptr \"%s\", sptr \"%s\", split \"%s\", reason \"%s\","
1230+ " action %d, creation %Tu, expire %Tu, lastmod %Tu, lifetime %Tu, flags 0x%04x)",
1231+ cli_name(cptr), cli_name(sptr), split->sp_server, reason, action,
12e82c05 1232+ creation, expire, lastmod, lifetime, flags));
1233+
1234+ /* not modifying SPLIT for server that is linked
1235+ * if sptr is my user throw error
1236+ * otherwise ignore - SERVER and SPLIT messages can cross.
1237+ *
1238+ * note: we cleanup SPLIT entries at end of burst,
1239+ * and not when a server is introduced.
1240+ * so between net junction and end of burst,
1241+ * we can get SPLITs for a linked server.
65b70298 1242+ * also more than one server can be bursting at a time.
12e82c05 1243+ */
12e82c05 1244+ if ((acptr = FindServer(split->sp_server))) {
1245+ if (MyUser(sptr))
1246+ sendcmdto_one(&me, CMD_NOTICE, sptr,
1247+ "%C :Cannot modify SPLIT %s - server is linked.", sptr, split->sp_server);
0c63b280 1248+ /* SPLIT is not for a server part of a netmerge */
1249+ if (!SplitIsBurst(split))
1250+ split_free(split); /* and free it */
12e82c05 1251+ return 0;
1252+ }
55404221 1253+
1254+ /* check lastmod */
0c63b280 1255+ if (split->sp_lastmod > lastmod) { /* we have a more recent version */
55404221 1256+ if (IsBurstOrBurstAck(cptr)) /* middle of a burst, it will resync on its own */
1257+ return 0;
12e82c05 1258+ return split_resend(cptr, split); /* resync the server */
55404221 1259+ } else if (split->sp_lastmod == lastmod) /* same version */
1260+ return 0;
12e82c05 1261+
55404221 1262+ /* there is a change of some sort */
1263+ /* check out the expiration time */
1264+ if (flags & SPLIT_EXPIRE) {
1265+ if (expire != split->sp_expire) {
1266+ /* bad expiration time */
1267+ if (MyUser(sptr) && (expire < TStime() || expire - TStime() > SPLIT_MAX_EXPIRE))
0c63b280 1268+ return send_reply(sptr, ERR_BADEXPIRE, expire - TStime());
55404221 1269+ /* expire timestamp is in the past, so remap to deactivate */
1270+ if (expire < TStime() && action == SPLIT_ACTIVATE)
1271+ action = SPLIT_DEACTIVATE;
1272+ } else
1273+ flags &= ~SPLIT_EXPIRE;
1274+ }
0c63b280 1275+
12e82c05 1276+ /* Next, check out lifetime */
1277+ if (!(flags & SPLIT_LIFETIME) || !lifetime)
1278+ lifetime = split->sp_lifetime; /* use Split lifetime */
1279+
1280+ lifetime = IRCD_MAX(lifetime, expire); /* set lifetime to the max */
1281+
0c63b280 1282+ /* now that we have the correct lifetime, check it */
1283+ if (lifetime - TStime() <= 0) /* no point in going further */
1284+ return 0;
1285+
12e82c05 1286+ /* OK, let's see which is greater... */
1287+ if (lifetime > split->sp_lifetime)
1288+ flags |= SPLIT_LIFETIME; /* have to update lifetime */
1289+ else {
1290+ flags &= ~SPLIT_LIFETIME; /* no change to lifetime */
1291+ lifetime = 0;
1292+ }
55404221 1293+
12e82c05 1294+ /* Finally, let's see if the reason needs to be updated */
55404221 1295+ if ((flags & SPLIT_REASON) && (reason[0] == '\0' || !ircd_strcmp(split->sp_reason, reason)))
12e82c05 1296+ flags &= ~SPLIT_REASON; /* no changes to the reason */
1297+
1298+ /* OK, now let's take a look at the action... */
1299+ if ((action == SPLIT_ACTIVATE && SplitIsActive(split)) ||
1300+ (action == SPLIT_DEACTIVATE && !SplitIsActive(split)) ||
1301+ /* can't activate an expired split entry */
0c63b280 1302+ (IRCD_MAX(split->sp_expire, expire) <= TStime()))
12e82c05 1303+ action = SPLIT_MODIFY; /* no activity state modifications */
1304+
1305+ Debug((DEBUG_DEBUG, "About to perform changes; flags 0x%04x, action %s",
1306+ flags, action == SPLIT_ACTIVATE ? "SPLIT_ACTIVATE" :
1307+ (action == SPLIT_DEACTIVATE ? "SPLIT_DEACTIVATE" :
1308+ (action == SPLIT_MODIFY ? "SPLIT_MODIFY" : "<UNKNOWN>"))));
1309+
1310+ /* If there are no changes to perform, do no changes */
55404221 1311+ if (!(flags & SPLIT_UPDATE) && action == SPLIT_MODIFY) {
1312+ if (MyUser(sptr))
1313+ sendcmdto_one(&me, CMD_NOTICE, sptr,
1314+ "%C :Cannot modify SPLIT %s - nothing to change.", sptr, split->sp_server);
12e82c05 1315+ return 0;
55404221 1316+ }
12e82c05 1317+
1318+ /* Start by updating lastmod, if indicated... */
1319+ split->sp_lastmod = lastmod;
1320+
1321+ /* Then move on to activity status changes... */
1322+ switch (action) {
1323+ case SPLIT_ACTIVATE: /* activating split entry */
1324+ split->sp_flags |= SPLIT_ACTIVE; /* make it active... */
1325+ pos += ircd_snprintf(0, buf, sizeof(buf), " activating SPLIT");
1326+ break;
1327+
1328+ case SPLIT_DEACTIVATE: /* deactivating split entry */
1329+ split->sp_flags &= ~SPLIT_ACTIVE; /* make it inactive... */
1330+ pos += ircd_snprintf(0, buf, sizeof(buf), " deactivating SPLIT");
1331+ break;
1332+
1333+ case SPLIT_MODIFY: /* no change to activity status */
1334+ break;
1335+ }
1336+
55404221 1337+ /* TODO: Handle creation changes... */
1338+
12e82c05 1339+ /* Handle expiration changes... */
1340+ if (flags & SPLIT_EXPIRE) {
1341+ split->sp_expire = expire; /* save new expiration time */
1342+ if (pos < BUFSIZE)
1343+ pos += ircd_snprintf(0, buf + pos, sizeof(buf) - pos,
1344+ "%s%s changing expiration time to %Tu",
1345+ pos ? ";" : "",
1346+ pos && !(flags & (SPLIT_LIFETIME | SPLIT_REASON)) ?
1347+ " and" : "", expire);
1348+ }
1349+
1350+ /* Next, handle lifetime changes... */
1351+ if (flags & SPLIT_LIFETIME) {
1352+ split->sp_lifetime = lifetime; /* save new lifetime */
1353+ if (pos < BUFSIZE)
1354+ pos += ircd_snprintf(0, buf + pos, sizeof(buf) - pos,
1355+ "%s%s extending record lifetime to %Tu",
1356+ pos ? ";" : "", pos && !(flags & SPLIT_REASON) ?
1357+ " and" : "", lifetime);
1358+ }
1359+
1360+ /* Now, handle reason changes... */
1361+ if (flags & SPLIT_REASON) {
1362+ MyFree(split->sp_reason); /* release old reason */
1363+ DupString(split->sp_reason, reason); /* store new reason */
1364+ if (pos < BUFSIZE)
1365+ pos += ircd_snprintf(0, buf + pos, sizeof(buf) - pos,
1366+ "%s%s changing reason to \"%s\"",
1367+ pos ? ";" : "", pos ? " and" : "", reason);
1368+ }
1369+
65b70298 1370+ /* TODO: add opername */
12e82c05 1371+ /* All right, inform ops... */
1372+ sendto_opmask_butone(0, SNO_NETWORK, "%s modifying SPLIT for %s:%s",
1373+ (feature_bool(FEAT_HIS_SNOTICES) || IsServer(sptr)) ?
1374+ cli_name(sptr) : cli_name((cli_user(sptr))->server),
1375+ split->sp_server, buf);
1376+
12e82c05 1377+ /* and log the change */
0c63b280 1378+ log_write(LS_SPLIT, L_INFO, LOG_NOSNOTICE,
12e82c05 1379+ "%#C modifying SPLIT for %s:%s",
1380+ sptr, split->sp_server, buf);
1381+
1382+ /* and propagate it */
1383+ split_propagate(cptr, sptr, split, NULL);
1384+
1385+ return 0;
1386+}
1387+
1388+
1389+/** Remove a split entry.
1390+ * @param[in] cptr Local client that sent us the split entry.
1391+ * @param[in] sptr Originator of the split entry.
1392+ * @param[in] split Split entry to remove.
1393+ * @param[in] reason Reason for removing this split entry.
1394+ * @return Zero.
1395+ */
1396+int
1397+split_remove(struct Client *cptr, struct Client *sptr, struct Split *split, const char *reason)
1398+{
1399+ unsigned int saveflags = 0;
1400+
1401+ assert(0 != split);
1402+ assert(NULL != cptr);
1403+ assert(NULL != sptr);
1404+
1405+ Debug((DEBUG_DEBUG, "split_remove(\"%s\", \"%s\", \"%s\", \"%s\")",
1406+ cli_name(cptr), cli_name(sptr), split->sp_server, reason));
1407+
1408+ /* deactivate entry and mark it for removal (used in split_propagate) */
1409+ split->sp_flags |= SPLIT_REMOVING;
0c63b280 1410+ split->sp_flags &= ~SPLIT_ACTIVE;
12e82c05 1411+
65b70298 1412+ /* TODO: add opername? */
12e82c05 1413+ /* inform ops and log it */
1414+ sendto_opmask_butone(0, SNO_NETWORK, "%s removing SPLIT for %s, expiring at %Tu: %s (%s)",
1415+ (feature_bool(FEAT_HIS_SNOTICES) || IsServer(sptr)) ?
1416+ cli_name(sptr) : cli_name((cli_user(sptr))->server),
1417+ split->sp_server, split->sp_expire, split->sp_reason, reason);
1418+
0c63b280 1419+ log_write(LS_SPLIT, L_INFO, LOG_NOSNOTICE,
12e82c05 1420+ "%#C removing SPLIT for %s, expiring at %Tu: %s (%s)",
1421+ sptr, split->sp_server, split->sp_expire, split->sp_reason, reason);
1422+
12e82c05 1423+ /* propagate it */
1424+ split_propagate(cptr, sptr, split, reason);
1425+
1426+ /* destroy it */
1427+ split_free(split);
1428+
1429+ return 0;
1430+}
1431+
1432+
1433+/** Find a split entry by name.
1434+ * @param[in] server Split entry name to search for.
1435+ * @return Matching split entry (or NULL if none match).
1436+ */
1437+struct Split *
1438+split_find(char *server)
1439+{
1440+ struct Split* split;
1441+ struct Split* ssplit;
1442+
1443+ for (split = GlobalSplitList; split; split = ssplit) { /* go through splits */
1444+ ssplit = split->sp_next;
1445+
1446+ if (split_expire(split)) /* expire any that need expiring */
1447+ split_free(split);
1448+ else if (0 == ircd_strcmp(server, split->sp_server)) /* found it yet? */
1449+ return split;
1450+ }
1451+ /* TODO: we return 0 not NULL? */
1452+ return 0;
1453+}
1454+
1455+/** Unlink and free an unused split entry.
1456+ * @param[in] split Server split entry to free.
1457+ */
1458+void
1459+split_free(struct Split* split)
1460+{
1461+ /* TODO: use 0 or NULL ? */
1462+ assert(0 != split);
1463+
1464+ *split->sp_prev_p = split->sp_next; /* squeeze this split entry out */
1465+ if (split->sp_next)
1466+ split->sp_next->sp_prev_p = split->sp_prev_p;
1467+
1468+ /* CHECK: the other fields in this struct are destroyed with MyFree() call? */
1469+ MyFree(split->sp_server); /* and free up the memory */
1470+ MyFree(split->sp_reason);
1471+ MyFree(split);
1472+}
1473+
1474+
1475+/** Check whether a split entry has past its life time.
1476+ * when entry is active and past expire time, but not life time, deactivate it
1477+ * @param[in] split Server split entry to check.
1478+ * @return 1 when entry can be free'd, 0 otherwise.
1479+ */
1480+int
1481+split_expire(struct Split* split)
1482+{
1483+ assert(0 != split);
1484+
65b70298 1485+ /* TODO: also check if the server in SPLIT entry is linked atm? */
12e82c05 1486+ /* past lifetime */
0c63b280 1487+ if (split->sp_lifetime <= TStime())
12e82c05 1488+ return 1;
1489+
1490+ /* past expire time, deactivate entry if it is active */
0c63b280 1491+ if ((split->sp_expire <= TStime()) && SplitIsActive(split))
1492+ split->sp_flags &= ~SPLIT_ACTIVE;
12e82c05 1493+
1494+ return 0;
1495+}
1496+
1497+/** Send the full list of split entries to \a cptr.
1498+ * @param[in] cptr Local server to send split entries to.
1499+ */
1500+void
1501+split_burst(struct Client *cptr)
1502+{
1503+ struct Split *split;
1504+ struct Split *ssplit;
1505+
1506+ assert(NULL != cptr);
1507+
1508+ for (split = GlobalSplitList; split; split = ssplit) { /* go through splits */
1509+ ssplit = split->sp_next;
1510+
1511+ /* expire any that need expiring */
1512+ if (split_expire(split))
1513+ split_free(split);
1514+ /* if we have an entry for cptr, dont send it - but do not free here yet
1515+ * free it at end of burst, to get the correct count for SPLITs removed.
1516+ */
1517+ else if (ircd_strcmp(split->sp_server, cli_name(cptr)) == 0)
1518+ continue;
1519+ else
1520+ sendcmdto_one(&me, CMD_SPLIT, cptr, "%c%s %Tu %Tu %Tu %Tu :%s",
1521+ SplitIsActive(split) ? '+' : '-', split->sp_server,
1522+ split->sp_creation, split->sp_expire,
1523+ split->sp_lastmod, split->sp_lifetime,
1524+ split->sp_reason);
1525+ }
1526+}
1527+
1528+/** Forward a split to another server.
1529+ * @param[in] cptr Server to send split entries to.
1530+ * @param[in] split Split to forward.
1531+ * @return Zero.
1532+ */
1533+int
1534+split_resend(struct Client *cptr, struct Split *split)
1535+{
1536+ sendcmdto_one(&me, CMD_SPLIT, cptr, "%c%s %Tu %Tu %Tu %Tu :%s",
1537+ SplitIsActive(split) ? '+' : '-', split->sp_server,
1538+ split->sp_creation, split->sp_expire,
1539+ split->sp_lastmod, split->sp_lifetime,
1540+ split->sp_reason);
1541+
1542+ return 0;
1543+}
1544+
1545+/** Send a split entry (or a list of split entries) to a server.
1546+ * @param[in] sptr Client searching for split entries.
1547+ * @param[in] server Name of split entry to search for (if NULL, list all).
1548+ * @return Zero.
1549+ */
1550+int
1551+split_list(struct Client *sptr, char *server)
1552+{
1553+ struct Split *split;
0c63b280 1554+ int count = 0;
12e82c05 1555+
1556+ assert(NULL != sptr);
1557+
0c63b280 1558+ /* go through SPLITs */
1559+ for (split = GlobalSplitList; split; split = split->sp_next) {
1560+ if (split_expire(split)) { /* expire any that need expiring */
1561+ split_free(split);
1562+ continue;
1563+ }
1564+ if (server && match(server, split->sp_server))
1565+ continue;
1566+ count++;
12e82c05 1567+ send_reply(sptr, RPL_SPLITLIST, split->sp_server,
0c63b280 1568+ split->sp_creation, split->sp_expire, split->sp_lastmod, split->sp_lifetime,
12e82c05 1569+ SplitIsActive(split) ? '+' : '-', split->sp_reason);
12e82c05 1570+ }
1571+
0c63b280 1572+ /* server given and nothing found */
1573+ if (server && !count)
1574+ return send_reply(sptr, ERR_NOSUCHSPLIT, server);
1575+
12e82c05 1576+ /* end of splitlist information */
1577+ return send_reply(sptr, RPL_ENDOFSPLITLIST);
1578+}
1579+
1580+
0c63b280 1581+/** Mark SPLIT for new server with SPLIT_BURST
1582+ * @param[in] acptr Server introduced to the network
1583+ */
1584+void
1585+split_newserver(struct Client *acptr)
1586+{
1587+ struct Split *split;
1588+
1589+ assert(NULL != acptr);
1590+
1591+ Debug((DEBUG_DEBUG, "split_newserver(\"%s\")", cli_name(acptr)));
1592+
1593+ /* mark the SPLIT with SPLIT_BURST
1594+ * so we know this SPLIT is marked for removal already
1595+ * but not remove it just yet to get the correct count
1596+ * of SPLITs removed at the end of burst.
1597+ * also we need the SPLIT in case the net breaks again
1598+ * before end of burst?
1599+ */
1600+ if ((split = split_find(cli_name(acptr))))
1601+ split->sp_flags |= SPLIT_BURST;
1602+ return;
1603+}
1604+
1605+
12e82c05 1606+/** Auto destroy SPLITs for servers gained in a netmerge
0c63b280 1607+ * @param[in] sptr Server that has linked to the network
12e82c05 1608+ * @return Number of destroyed SPLITs
1609+ */
1610+int
0c63b280 1611+split_netmerge(struct Client *sptr)
12e82c05 1612+{
1613+ struct DLink *lp;
1614+ struct Split *split;
1615+ int count = 0;
1616+
0c63b280 1617+ assert(NULL != sptr);
12e82c05 1618+
0c63b280 1619+ Debug((DEBUG_DEBUG, "split_netmerge(\"%s\")", cli_name(sptr)));
12e82c05 1620+
1621+ /* find the SPLIT for this server */
0c63b280 1622+ if ((split = split_find(cli_name(sptr)))) {
12e82c05 1623+ split_free(split);
1624+ count++;
1625+ }
1626+
1627+ /* go over its downlinks */
0c63b280 1628+ for (lp = cli_serv(sptr)->down; lp; lp = lp->next)
1629+ count += split_netmerge(lp->value.cptr);
12e82c05 1630+ return count;
1631+}
1632+
1633+
1634+/** Auto create SPLITs for servers lost in a netbreak
0c63b280 1635+ * @param[in] victim Server that lost link to network
12e82c05 1636+ * @param[in] reason Reason to add to SPLITs
1637+ * @return Number of created SPLITs
1638+ */
1639+int
0c63b280 1640+split_netbreak(struct Client *victim, const char *reason)
12e82c05 1641+{
1642+ struct DLink *lp;
1643+ struct Split *split;
1644+ int count = 0;
0c63b280 1645+ time_t creation = TStime(), expire = TStime() + feature_int(FEAT_SPLIT_AUTO_EXPIRE),
1646+ lastmod = TStime(), lifetime = expire;
12e82c05 1647+ unsigned int flags = SPLIT_ACTIVE;
1648+
0c63b280 1649+ assert(NULL != victim);
12e82c05 1650+
0c63b280 1651+ Debug((DEBUG_DEBUG, "split_netbreak(\"%s\", \"%s\")", cli_name(victim), reason));
12e82c05 1652+
65b70298 1653+ /* bad auto expire value */
1654+ if (feature_int(FEAT_SPLIT_AUTO_EXPIRE) <= 0)
1655+ return 0;
1656+
0c63b280 1657+ /* TODO: what if we do have a SPLIT for this server?
1658+ * we remove splits in end of burst
1659+ * and if the netbreaks again before that
1660+ * free the SPLIT and create a new one?
1661+ * or simply update lastmod/lifetime/reason but leave the status?
1662+ */
12e82c05 1663+ /* find the SPLIT for this server */
0c63b280 1664+ if (!(split = split_find(cli_name(victim)))) {
1665+ split_make(cli_name(victim), reason, creation, expire, lastmod, lifetime, flags);
12e82c05 1666+ count++;
0c63b280 1667+ } else
1668+ split->sp_flags &= SPLIT_BURST; /* clear the burst flag for it */
12e82c05 1669+
1670+ /* go over its downlinks */
0c63b280 1671+ for (lp = cli_serv(victim)->down; lp; lp = lp->next)
1672+ count += split_netbreak(lp->value.cptr, reason);
12e82c05 1673+ return count;
1674+}
1675+
1676+
1677+/** Auto create SPLITs for servers we have a Connect Block for
1678+ *
1679+ */
1680+void
1681+split_conf()
1682+{
1683+ struct ConfItem *conf;
1684+ struct Client *server;
1685+ struct Split *split;
1686+ struct Split *asplit;
0c63b280 1687+ time_t creation = TStime(), expire = TStime() + feature_int(FEAT_SPLIT_AUTO_EXPIRE),
1688+ lastmod = TStime(), lifetime = expire;
12e82c05 1689+ unsigned int flags = SPLIT_ACTIVE;
1690+ char reason[BUFSIZE];
1691+
1692+ Debug((DEBUG_DEBUG, "split_conf()"));
1693+
1694+ /* we are not set to generate SPLITs */
1695+ if (!feature_bool(FEAT_SPLIT))
1696+ return;
1697+
0c63b280 1698+ /* TODO: log this problem? */
65b70298 1699+ /* bad auto expire value */
1700+ if (feature_int(FEAT_SPLIT_AUTO_EXPIRE) <= 0)
1701+ return;
1702+
12e82c05 1703+ ircd_snprintf(0, reason, sizeof(reason),
0c63b280 1704+ "Generated upon loading conf file on %C", &me);
12e82c05 1705+
1706+ /* go over the conf contents */
1707+ for (conf = GlobalConfList; conf; conf = conf->next) {
1708+ /* not a Connect Block */
1709+ if (CONF_SERVER != conf->status)
1710+ continue;
1711+ /* server is linked */
1712+ if (server = FindServer(conf->name))
1713+ continue;
1714+ /* we have a SPLIT for this server already */
1715+ if (split = split_find(conf->name))
1716+ continue;
65b70298 1717+ /* TODO: use SNO_OLDSNO here?
1718+ * just like nickcollisions on local users go there?
1719+ * or at least change the source / message format?
1720+ * /REHASH goes to SNO_OLDSNO? so this too?
1721+ * if oper did rehash, add his name here?
1722+ */
12e82c05 1723+ /* inform ops and log it */
1724+ sendto_opmask_butone(0, SNO_NETWORK, "%C adding SPLIT for %s, expiring at %Tu: %s",
1725+ &me, conf->name, expire, reason);
1726+
0c63b280 1727+ log_write(LS_SPLIT, L_INFO, LOG_NOSNOTICE,
12e82c05 1728+ "%C adding SPLIT for %s, expiring at %Tu: %s",
1729+ &me, conf->name, expire, reason);
1730+
1731+ /* make the split entry */
1732+ asplit = split_make(conf->name, reason, creation, expire, lastmod, lifetime, flags);
1733+
1734+ assert(asplit);
1735+
1736+ /* and propagate it */
1737+ split_propagate(&me, &me, asplit, NULL);
1738+ }
1739+}
1740+
1741+
1742+/** Statistics callback to list SPLITs.
1743+ * @param[in] sptr Client requesting statistics.
1744+ * @param[in] sd Stats descriptor for request (ignored).
1745+ * @param[in] param Extra parameter from user (ignored).
1746+ */
1747+void
1748+split_stats(struct Client *sptr, const struct StatDesc *sd,
1749+ char *param)
1750+{
1751+ struct Split *split;
12e82c05 1752+
65b70298 1753+ /* send header so the client knows what we are showing */
1754+ send_reply(sptr, SND_EXPLICIT | RPL_STATSHEADER,
1755+ "S Server Creation Expire Lastmod Lifetime Status :Reason");
1756+
0c63b280 1757+ for (split = GlobalSplitList; split; split = split->sp_next) {
1758+ if (param && match(param, split->sp_server))
1759+ continue;
12e82c05 1760+ send_reply(sptr, RPL_STATSSPLIT, split->sp_server,
1761+ split->sp_creation, split->sp_expire, split->sp_lastmod, split->sp_lifetime,
1762+ SplitIsActive(split) ? '+' : '-', split->sp_reason);
0c63b280 1763+ }
12e82c05 1764+}
1765+
1766+
1767+/** Count split entries and memory used by them.
1768+ * @param[out] sp_size Receives total number of bytes allocated for split entries.
1769+ * @return Number of split entries currently allocated.
1770+ */
1771+int
1772+split_memory_count(size_t *sp_size)
1773+{
1774+ struct Split *split;
1775+ unsigned int sp = 0;
1776+
0c63b280 1777+ for (split = GlobalSplitList; split; split = split->sp_next) {
12e82c05 1778+ sp++;
1779+ *sp_size += sizeof(struct Split);
1780+ *sp_size += split->sp_server ? (strlen(split->sp_server) + 1) : 0;
1781+ *sp_size += split->sp_reason ? (strlen(split->sp_reason) + 1) : 0;
1782+ }
1783+ return sp;
1784+}
1785+
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