2 * IRC - Internet Relay Chat, ircd/channel.h
3 * Copyright (C) 1990 Jarkko Oikarinen
4 * Copyright (C) 1996 - 1997 Carlo Wood
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2, or (at your option)
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
22 #ifndef INCLUDED_channel_h
23 #define INCLUDED_channel_h
24 #ifndef INCLUDED_ircd_defs_h
25 #include "ircd_defs.h" /* NICKLEN */
27 #ifndef INCLUDED_sys_types_h
28 #include <sys/types.h>
29 #define INCLUDED_sys_types_h
39 #define MAXMODEPARAMS 6
40 #define MODEBUFLEN 200
44 #define CHANNELLEN 200
46 #define MAXJOINARGS 15 /* number of slots for join buffer */
47 #define STARTJOINLEN 10 /* fuzzy numbers */
48 #define STARTCREATELEN 20
54 #define ChannelExists(n) (0 != FindChannel(n))
56 #define CHFL_CHANOP 0x0001 /* Channel operator */
57 #define CHFL_VOICE 0x0002 /* the power to speak */
58 #define CHFL_DEOPPED 0x0004 /* Is de-opped by a server */
59 #define CHFL_SERVOPOK 0x0008 /* Server op allowed */
60 #define CHFL_ZOMBIE 0x0010 /* Kicked from channel */
61 #define CHFL_BAN 0x0020 /* ban channel flag */
62 #define CHFL_BAN_IPMASK 0x0040 /* ban mask is an IP-number mask */
63 #define CHFL_BAN_OVERLAPPED 0x0080 /* ban overlapped, need bounce */
64 #define CHFL_BURST_JOINED 0x0100 /* Just joined by net.junction */
65 #define CHFL_BURST_BAN 0x0200 /* Ban part of last BURST */
66 #define CHFL_BURST_BAN_WIPEOUT 0x0400 /* Ban will be wiped at end of BURST */
67 #define CHFL_BANVALID 0x0800 /* CHFL_BANNED bit is valid */
68 #define CHFL_BANNED 0x1000 /* Channel member is banned */
69 #define CHFL_SILENCE_IPMASK 0x2000 /* silence mask is an IP-number mask */
70 #define CHFL_BURST_ALREADY_OPPED 0x04000 /* In oob BURST, but was already joined and opped */
71 #define CHFL_BURST_ALREADY_VOICED 0x08000 /* In oob BURST, but was already joined and voiced */
72 #define CHFL_CHANNEL_MANAGER 0x10000 /* Set when creating channel or using Apass */
74 #define CHFL_OVERLAP (CHFL_CHANOP | CHFL_VOICE)
75 #define CHFL_BANVALIDMASK (CHFL_BANVALID | CHFL_BANNED)
76 #define CHFL_VOICED_OR_OPPED (CHFL_CHANOP | CHFL_VOICE)
78 /* Channel Visibility macros */
80 #define MODE_CHANOP CHFL_CHANOP
81 #define MODE_VOICE CHFL_VOICE
82 #define MODE_PRIVATE 0x0004
83 #define MODE_SECRET 0x0008
84 #define MODE_MODERATED 0x0010
85 #define MODE_TOPICLIMIT 0x0020
86 #define MODE_INVITEONLY 0x0040
87 #define MODE_NOPRIVMSGS 0x0080
88 #define MODE_KEY 0x0100
89 #define MODE_BAN 0x0200
90 #define MODE_LIMIT 0x0400
91 #define MODE_REGONLY 0x0800 /* Only +r users may join */
92 #define MODE_LISTED 0x10000
93 #define MODE_SAVE 0x20000 /* save this mode-with-arg 'til later */
94 #define MODE_FREE 0x40000 /* string needs to be passed to MyFree() */
95 #define MODE_BURSTADDED 0x80000 /* channel was created by a BURST */
96 #define MODE_UPASS 0x100000
97 #define MODE_APASS 0x200000
99 * mode flags which take another parameter (With PARAmeterS)
101 #define MODE_WPARAS (MODE_CHANOP|MODE_VOICE|MODE_BAN|MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS)
103 #define infochanmodes feature_bool(FEAT_OPLEVELS) ? "Abiklmnopstuvr" : "biklmnopstvr"
104 #define infochanmodeswithparams feature_bool(FEAT_OPLEVELS) ? "Abklouv" : "bklov"
106 #define HoldChannel(x) (!(x))
108 #define SecretChannel(x) ((x) && ((x)->mode.mode & MODE_SECRET))
109 /* channel not shown but names are */
110 #define HiddenChannel(x) ((x) && ((x)->mode.mode & MODE_PRIVATE))
111 /* channel visible */
112 #define ShowChannel(v,c) (PubChannel(c) || find_channel_member((v),(c)) || \
113 (IsAnOper(v) && HasPriv(v, PRIV_LIST_CHAN)))
114 #define PubChannel(x) ((!x) || ((x)->mode.mode & \
115 (MODE_PRIVATE | MODE_SECRET)) == 0)
116 #define is_listed(x) ((x)->mode.mode & MODE_LISTED)
118 #define IsLocalChannel(name) (*(name) == '&')
119 #define IsChannelName(name) (*(name) == '#' || \
120 IsLocalChannel(name))
122 typedef enum ChannelGetType {
127 /* used in SetMode() in channel.c and m_umode() in s_msg.c */
130 #define MODE_ADD 0x40000000
131 #define MODE_DEL 0x20000000
134 * Maximum acceptable lag time in seconds: A channel younger than
135 * this is not protected against hacking admins.
136 * Mainly here to check if the TS clocks really sync (otherwise this
137 * will start causing HACK notices.
138 * This value must be the same on all servers.
140 * This value has been increased to 1 day in order to distinguish this
141 * "normal" type of HACK wallops / desyncs, from possiblity still
144 #define TS_LAG_TIME 86400
147 * A Magic TS that is used for channels that are created by JOIN,
148 * a channel with this TS accepts all TS without complaining that
149 * it might receive later via MODE or CREATE.
151 #define MAGIC_REMOTE_JOIN_TS 1270080000
154 * used in can_join to determine if an oper forced a join on a channel
156 #define MAGIC_OPER_OVERRIDE 1000
159 extern const char* const PartFmt1;
160 extern const char* const PartFmt2;
161 extern const char* const PartFmt1serv;
162 extern const char* const PartFmt2serv;
171 struct Channel* channel;
172 struct Membership* next_member;
173 struct Membership* prev_member;
174 struct Membership* next_channel;
175 struct Membership* prev_channel;
177 unsigned short oplevel;
180 #define MAXOPLEVELDIGITS 3
181 #define MAXOPLEVEL 999
183 #define IsZombie(x) ((x)->status & CHFL_ZOMBIE)
184 #define IsDeopped(x) ((x)->status & CHFL_DEOPPED)
185 #define IsBanned(x) ((x)->status & CHFL_BANNED)
186 #define IsBanValid(x) ((x)->status & CHFL_BANVALID)
187 #define IsChanOp(x) ((x)->status & CHFL_CHANOP)
188 #define OpLevel(x) ((x)->oplevel)
189 #define HasVoice(x) ((x)->status & CHFL_VOICE)
190 #define IsServOpOk(x) ((x)->status & CHFL_SERVOPOK)
191 #define IsBurstJoined(x) ((x)->status & CHFL_BURST_JOINED)
192 #define IsVoicedOrOpped(x) ((x)->status & CHFL_VOICED_OR_OPPED)
193 #define IsChannelManager(x) ((x)->status & CHFL_CHANNEL_MANAGER)
195 #define SetBanned(x) ((x)->status |= CHFL_BANNED)
196 #define SetBanValid(x) ((x)->status |= CHFL_BANVALID)
197 #define SetDeopped(x) ((x)->status |= CHFL_DEOPPED)
198 #define SetServOpOk(x) ((x)->status |= CHFL_SERVOPOK)
199 #define SetBurstJoined(x) ((x)->status |= CHFL_BURST_JOINED)
200 #define SetZombie(x) ((x)->status |= CHFL_ZOMBIE)
201 #define SetChannelManager(x) ((x)->status |= CHFL_CHANNEL_MANAGER)
202 #define SetOpLevel(x, v) (void)((x)->oplevel = (v))
204 #define ClearBanned(x) ((x)->status &= ~CHFL_BANNED)
205 #define ClearBanValid(x) ((x)->status &= ~CHFL_BANVALID)
206 #define ClearDeopped(x) ((x)->status &= ~CHFL_DEOPPED)
207 #define ClearServOpOk(x) ((x)->status &= ~CHFL_SERVOPOK)
208 #define ClearBurstJoined(x) ((x)->status &= ~CHFL_BURST_JOINED)
214 char key[KEYLEN + 1];
215 char upass[PASSLEN + 1];
216 char apass[PASSLEN + 1];
220 struct Channel* next;
221 struct Channel* prev;
222 struct Channel* hnext;
223 struct DestructEvent* destruct_event;
227 struct Membership* members;
228 struct SLink* invites;
229 struct SLink* banlist;
231 char topic[TOPICLEN + 1];
232 char topic_nick[NICKLEN + 1];
239 unsigned int max_users;
240 unsigned int min_users;
241 unsigned int topic_limits;
242 time_t max_topic_time;
243 time_t min_topic_time;
244 struct Channel *chptr;
248 unsigned int mb_add; /* Modes to add */
249 unsigned int mb_rem; /* Modes to remove */
250 struct Client *mb_source; /* Source of MODE changes */
251 struct Client *mb_connect; /* Connection of MODE changes */
252 struct Channel *mb_channel; /* Channel they affect */
253 unsigned int mb_dest; /* Destination of MODE changes */
254 unsigned int mb_count; /* Number of modes w/args */
256 unsigned int mbm_type; /* Type of argument */
258 unsigned int mbma_uint; /* A limit */
259 char *mbma_string; /* A string */
260 struct Client *mbma_client; /* A client */
261 } mbm_arg; /* The mode argument */
262 } mb_modeargs[MAXMODEPARAMS];
266 #define MODEBUF_DEST_CHANNEL 0x00001 /* Mode is flushed to channel */
267 #define MODEBUF_DEST_SERVER 0x00002 /* Mode is flushed to server */
269 #define MODEBUF_DEST_OPMODE 0x00100 /* Send server mode as OPMODE */
270 #define MODEBUF_DEST_DEOP 0x00200 /* Deop the offender */
271 #define MODEBUF_DEST_BOUNCE 0x00400 /* Bounce the modes */
272 #define MODEBUF_DEST_LOG 0x00800 /* Log the mode changes to OPATH */
274 #define MODEBUF_DEST_HACK2 0x02000 /* Send a HACK(2) notice, reverse */
275 #define MODEBUF_DEST_HACK3 0x04000 /* Send a HACK(3) notice, TS == 0 */
276 #define MODEBUF_DEST_HACK4 0x08000 /* Send a HACK(4) notice, TS == 0 */
278 #define MODEBUF_DEST_NOKEY 0x10000 /* Don't send the real key */
280 #define MB_TYPE(mb, i) ((mb)->mb_modeargs[(i)].mbm_type)
281 #define MB_UINT(mb, i) ((mb)->mb_modeargs[(i)].mbm_arg.mbma_uint)
282 #define MB_STRING(mb, i) ((mb)->mb_modeargs[(i)].mbm_arg.mbma_string)
283 #define MB_CLIENT(mb, i) ((mb)->mb_modeargs[(i)].mbm_arg.mbma_client)
286 struct Client *jb_source; /* Source of joins (ie, joiner) */
287 struct Client *jb_connect; /* Connection of joiner */
288 unsigned int jb_type; /* Type of join (JOIN or CREATE) */
289 char *jb_comment; /* part comment */
290 time_t jb_create; /* Creation timestamp */
291 unsigned int jb_count; /* Number of channels */
292 unsigned int jb_strlen; /* length so far */
293 struct Channel *jb_channels[MAXJOINARGS];
294 /* channels joined or whatever */
297 #define JOINBUF_TYPE_JOIN 0 /* send JOINs */
298 #define JOINBUF_TYPE_CREATE 1 /* send CREATEs */
299 #define JOINBUF_TYPE_PART 2 /* send PARTs */
300 #define JOINBUF_TYPE_PARTALL 3 /* send local PARTs, but not remote */
302 extern struct Channel* GlobalChannelList;
303 extern int LocalChanOperMode;
308 extern void clean_channelname(char* name);
309 extern void channel_modes(struct Client *cptr, char *mbuf, char *pbuf,
310 int buflen, struct Channel *chptr,
311 struct Membership *member);
312 extern int set_mode(struct Client* cptr, struct Client* sptr,
313 struct Channel* chptr, int parc, char* parv[],
314 char* mbuf, char* pbuf, char* npbuf, int* badop);
315 extern void send_hack_notice(struct Client *cptr, struct Client *sptr,
316 int parc, char *parv[], int badop, int mtype);
317 extern struct Channel *get_channel(struct Client *cptr,
318 char *chname, ChannelGetType flag);
319 extern struct Membership* find_member_link(struct Channel * chptr,
320 const struct Client* cptr);
321 extern int sub1_from_channel(struct Channel* chptr);
322 extern int destruct_channel(struct Channel* chptr);
323 extern int can_join(struct Client *sptr, struct Channel *chptr, char *key);
324 extern void add_user_to_channel(struct Channel* chptr, struct Client* who,
325 unsigned int flags, int oplevel);
326 extern void cancel_mode(struct Client *sptr, struct Channel *chptr, char m,
327 const char *param, int *count);
328 extern void add_token_to_sendbuf(char *token, size_t *sblenp, int *firstp,
329 int *send_itp, char is_a_ban, int mode);
330 extern int add_banid(struct Client *cptr, struct Channel *chptr, char *banid,
331 int change, int firsttime);
332 extern struct SLink *next_removed_overlapped_ban(void);
333 extern void cancel_mode(struct Client *sptr, struct Channel *chptr, char m,
334 const char *param, int *count);
335 extern void make_zombie(struct Membership* member, struct Client* who,
336 struct Client* cptr, struct Client* sptr,
337 struct Channel* chptr);
338 extern struct Client* find_chasing(struct Client* sptr, const char* user, int* chasing);
339 void add_invite(struct Client *cptr, struct Channel *chptr);
340 int number_of_zombies(struct Channel *chptr);
342 extern const char* find_no_nickchange_channel(struct Client* cptr);
343 extern struct Membership* IsMember(struct Client *cptr, struct Channel *chptr);
344 extern struct Membership* find_channel_member(struct Client* cptr, struct Channel* chptr);
345 extern int member_can_send_to_channel(struct Membership* member);
346 extern int client_can_send_to_channel(struct Client *cptr, struct Channel *chptr);
348 extern void remove_user_from_channel(struct Client *sptr, struct Channel *chptr);
349 extern void remove_user_from_all_channels(struct Client* cptr);
351 extern int is_chan_op(struct Client *cptr, struct Channel *chptr);
352 extern int is_zombie(struct Client *cptr, struct Channel *chptr);
353 extern int has_voice(struct Client *cptr, struct Channel *chptr);
355 NOTE: pointer is compared, and not dereferenced, called by
356 add_target with a void*, since targets could be anything,
357 this function can't make any assumptions that it has a channel
359 extern int IsInvited(struct Client* cptr, const void* chptr);
360 extern void send_channel_modes(struct Client *cptr, struct Channel *chptr);
361 extern char *pretty_mask(char *mask);
362 extern void del_invite(struct Client *cptr, struct Channel *chptr);
363 extern void list_next_channels(struct Client *cptr, int nr);
364 extern void list_set_default(void); /* this belongs elsewhere! */
366 extern void modebuf_init(struct ModeBuf *mbuf, struct Client *source,
367 struct Client *connect, struct Channel *chan,
369 extern void modebuf_mode(struct ModeBuf *mbuf, unsigned int mode);
370 extern void modebuf_mode_uint(struct ModeBuf *mbuf, unsigned int mode,
372 extern void modebuf_mode_string(struct ModeBuf *mbuf, unsigned int mode,
373 char *string, int free);
374 extern void modebuf_mode_client(struct ModeBuf *mbuf, unsigned int mode,
375 struct Client *client);
376 extern int modebuf_flush(struct ModeBuf *mbuf);
377 extern void modebuf_extract(struct ModeBuf *mbuf, char *buf);
379 extern void mode_ban_invalidate(struct Channel *chan);
380 extern void mode_invite_clear(struct Channel *chan);
382 extern int mode_parse(struct ModeBuf *mbuf, struct Client *cptr,
383 struct Client *sptr, struct Channel *chptr,
384 int parc, char *parv[], unsigned int flags,
385 struct Membership* member);
387 #define MODE_PARSE_SET 0x01 /* actually set channel modes */
388 #define MODE_PARSE_STRICT 0x02 /* +m +n +t style not supported */
389 #define MODE_PARSE_FORCE 0x04 /* force the mode to be applied */
390 #define MODE_PARSE_BOUNCE 0x08 /* we will be bouncing the modes */
391 #define MODE_PARSE_NOTOPER 0x10 /* send "not chanop" to user */
392 #define MODE_PARSE_NOTMEMBER 0x20 /* send "not member" to user */
393 #define MODE_PARSE_WIPEOUT 0x40 /* wipe out +k and +l during burst */
394 #define MODE_PARSE_BURST 0x80 /* be even more strict w/extra args */
396 extern void joinbuf_init(struct JoinBuf *jbuf, struct Client *source,
397 struct Client *connect, unsigned int type,
398 char *comment, time_t create);
399 extern void joinbuf_join(struct JoinBuf *jbuf, struct Channel *chan,
401 extern int joinbuf_flush(struct JoinBuf *jbuf);
403 #endif /* INCLUDED_channel_h */