--- /dev/null
+/*
+ * IRC - Internet Relay Chat, ircd/channel.h
+ * Copyright (C) 1990 Jarkko Oikarinen
+ * Copyright (C) 1996 - 1997 Carlo Wood
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+/** @file
+ * @brief Channel management and maintenance.
+ * @version $Id$
+ */
+#ifndef INCLUDED_channel_h
+#define INCLUDED_channel_h
+#ifndef INCLUDED_ircd_defs_h
+#include "ircd_defs.h" /* NICKLEN */
+#endif
+#ifndef INCLUDED_sys_types_h
+#include <sys/types.h>
+#define INCLUDED_sys_types_h
+#endif
+#ifndef INCLUDED_res_h
+#include "res.h"
+#endif
+
+struct SLink;
+struct Client;
+
+/*
+ * General defines
+ */
+
+#define MAXMODEPARAMS 6 /**< Maximum number of mode parameters */
+#define MODEBUFLEN 200 /**< Maximum length of a mode */
+
+#define KEYLEN 23 /**< Maximum length of a key */
+#define CHANNELLEN 200 /**< Maximum length of a channel */
+
+#define MAXJOINARGS 15 /**< number of slots for join buffer */
+#define STARTJOINLEN 10 /**< fuzzy numbers */
+#define STARTCREATELEN 20
+
+/*
+ * Macro's
+ */
+
+#define ChannelExists(n) (0 != FindChannel(n))
+
+#define CHFL_CHANOP 0x0001 /**< Channel operator */
+#define CHFL_VOICE 0x0002 /**< the power to speak */
+#define CHFL_DEOPPED 0x0004 /**< Is de-opped by a server */
+#define CHFL_SERVOPOK 0x0008 /**< Server op allowed */
+#define CHFL_ZOMBIE 0x0010 /**< Kicked from channel */
+#define CHFL_BURST_JOINED 0x0100 /**< Just joined by net.junction */
+#define CHFL_BANVALID 0x0800 /**< CHFL_BANNED bit is valid */
+#define CHFL_BANNED 0x1000 /**< Channel member is banned */
+#define CHFL_SILENCE_IPMASK 0x2000 /**< silence mask is a CIDR */
+#define CHFL_BURST_ALREADY_OPPED 0x04000
+ /**< In oob BURST, but was already
+ * joined and opped
+ */
+#define CHFL_BURST_ALREADY_VOICED 0x08000
+ /**, In oob BURST, but was already
+ * joined and voiced
+ */
+#define CHFL_CHANNEL_MANAGER 0x10000 /**< Set when creating channel or using
+ * Apass
+ */
+#define CHFL_USER_PARTING 0x20000 /**< User is already parting that
+ * channel
+ */
+#define CHFL_DELAYED 0x40000 /**< User's join message is delayed */
+
+#define CHFL_OVERLAP (CHFL_CHANOP | CHFL_VOICE)
+#define CHFL_BANVALIDMASK (CHFL_BANVALID | CHFL_BANNED)
+#define CHFL_VOICED_OR_OPPED (CHFL_CHANOP | CHFL_VOICE)
+
+/* Channel Visibility macros */
+
+#define MODE_CHANOP CHFL_CHANOP /**< +o Chanop */
+#define MODE_VOICE CHFL_VOICE /**< +v Voice */
+#define MODE_PRIVATE 0x0004 /**< +p Private */
+#define MODE_SECRET 0x0008 /**< +s Secret */
+#define MODE_MODERATED 0x0010 /**< +m Moderated */
+#define MODE_TOPICLIMIT 0x0020 /**< +t Topic Limited */
+#define MODE_INVITEONLY 0x0040 /**< +i Invite only */
+#define MODE_NOPRIVMSGS 0x0080 /**< +n No Private Messages */
+#define MODE_KEY 0x0100 /**< +k Keyed */
+#define MODE_BAN 0x0200 /**< +b Ban */
+#define MODE_LIMIT 0x0400 /**< +l Limit */
+#define MODE_REGONLY 0x0800 /**< Only +r users may join */
+#define MODE_DELJOINS 0x1000 /**< New join messages are delayed */
+#define MODE_REGISTERED 0x2000 /**< Channel marked as registered
+ * (for future semantic expansion) */
+#define MODE_SAVE 0x20000 /**< save this mode-with-arg 'til
+ * later */
+#define MODE_FREE 0x40000 /**< string needs to be passed to
+ * MyFree() */
+#define MODE_BURSTADDED 0x80000 /**< channel was created by a BURST */
+#define MODE_UPASS 0x100000
+#define MODE_APASS 0x200000
+#define MODE_WASDELJOINS 0x400000 /**< Not DELJOINS, but some joins
+ * pending */
+/** mode flags which take another parameter (With PARAmeterS)
+ */
+#define MODE_WPARAS (MODE_CHANOP|MODE_VOICE|MODE_BAN|MODE_KEY|MODE_LIMIT|MODE_APASS|MODE_UPASS)
+
+/** Available Channel modes */
+#define infochanmodes feature_bool(FEAT_OPLEVELS) ? "AbiklmnopstUvrDdR" : "biklmnopstvrDdR"
+/** Available Channel modes that take parameters */
+#define infochanmodeswithparams feature_bool(FEAT_OPLEVELS) ? "AbkloUv" : "bklov"
+
+#define HoldChannel(x) (!(x))
+/** name invisible */
+#define SecretChannel(x) ((x) && ((x)->mode.mode & MODE_SECRET))
+/** channel not shown but names are */
+#define HiddenChannel(x) ((x) && ((x)->mode.mode & MODE_PRIVATE))
+/** channel visible */
+#define ShowChannel(v,c) (PubChannel(c) || find_channel_member((v),(c)))
+#define PubChannel(x) ((!x) || ((x)->mode.mode & \
+ (MODE_PRIVATE | MODE_SECRET)) == 0)
+
+#define IsGlobalChannel(name) (*(name) == '#')
+#define IsLocalChannel(name) (*(name) == '&')
+#define IsChannelName(name) (IsGlobalChannel(name) || IsLocalChannel(name))
+
+typedef enum ChannelGetType {
+ CGT_NO_CREATE,
+ CGT_CREATE
+} ChannelGetType;
+
+/* used in SetMode() in channel.c and m_umode() in s_msg.c */
+
+#define MODE_NULL 0
+#define MODE_ADD 0x40000000
+#define MODE_DEL 0x20000000
+
+/* used in ListingArgs.flags */
+
+#define LISTARG_TOPICLIMITS 0x0001
+#define LISTARG_SHOWSECRET 0x0002
+#define LISTARG_NEGATEWILDCARD 0x0004
+#define LISTARG_SHOWMODES 0x0008
+
+/**
+ * Maximum acceptable lag time in seconds: A channel younger than
+ * this is not protected against hacking admins.
+ * Mainly here to check if the TS clocks really sync (otherwise this
+ * will start causing HACK notices.
+ * This value must be the same on all servers.
+ *
+ * This value has been increased to 1 day in order to distinguish this
+ * "normal" type of HACK wallops / desyncs, from possiblity still
+ * existing bugs.
+ */
+#define TS_LAG_TIME 86400
+
+
+
+extern const char* const PartFmt1;
+extern const char* const PartFmt2;
+extern const char* const PartFmt1serv;
+extern const char* const PartFmt2serv;
+
+
+/*
+ * Structures
+ */
+
+/** Information about a client on one channel
+ *
+ * This structure forms a sparse matrix with users down the side, and
+ * channels across the top. This matrix holds all the information about
+ * which users are on what channels, and what modes that user has on that
+ * channel (if they are op'd, voice'd and cached information if they are
+ * banned or not)
+ */
+struct Membership {
+ struct Client* user; /**< The user */
+ struct Channel* channel; /**< The channel */
+ struct Membership* next_member; /**< The next user on this channel */
+ struct Membership* prev_member; /**< The previous user on this channel*/
+ struct Membership* next_channel; /**< Next channel this user is on */
+ struct Membership* prev_channel; /**< Previous channel this user is on*/
+ unsigned int status; /**< Flags for op'd, voice'd, etc */
+ unsigned short oplevel; /**< Op level */
+};
+
+#define MAXOPLEVELDIGITS 3
+#define MAXOPLEVEL 999
+
+#define IsZombie(x) ((x)->status & CHFL_ZOMBIE) /**< see \ref zombie */
+#define IsDeopped(x) ((x)->status & CHFL_DEOPPED)
+#define IsBanned(x) ((x)->status & CHFL_BANNED)
+#define IsBanValid(x) ((x)->status & CHFL_BANVALID)
+#define IsChanOp(x) ((x)->status & CHFL_CHANOP)
+#define OpLevel(x) ((x)->oplevel)
+#define HasVoice(x) ((x)->status & CHFL_VOICE)
+#define IsServOpOk(x) ((x)->status & CHFL_SERVOPOK)
+#define IsBurstJoined(x) ((x)->status & CHFL_BURST_JOINED)
+#define IsVoicedOrOpped(x) ((x)->status & CHFL_VOICED_OR_OPPED)
+#define IsChannelManager(x) ((x)->status & CHFL_CHANNEL_MANAGER)
+#define IsUserParting(x) ((x)->status & CHFL_USER_PARTING)
+#define IsDelayedJoin(x) ((x)->status & CHFL_DELAYED)
+
+#define SetBanned(x) ((x)->status |= CHFL_BANNED)
+#define SetBanValid(x) ((x)->status |= CHFL_BANVALID)
+#define SetDeopped(x) ((x)->status |= CHFL_DEOPPED)
+#define SetServOpOk(x) ((x)->status |= CHFL_SERVOPOK)
+#define SetBurstJoined(x) ((x)->status |= CHFL_BURST_JOINED)
+#define SetZombie(x) ((x)->status |= CHFL_ZOMBIE)
+#define SetChannelManager(x) ((x)->status |= CHFL_CHANNEL_MANAGER)
+#define SetOpLevel(x, v) (void)((x)->oplevel = (v))
+#define SetUserParting(x) ((x)->status |= CHFL_USER_PARTING)
+#define SetDelayedJoin(x) ((x)->status |= CHFL_DELAYED)
+
+#define ClearBanned(x) ((x)->status &= ~CHFL_BANNED)
+#define ClearBanValid(x) ((x)->status &= ~CHFL_BANVALID)
+#define ClearDeopped(x) ((x)->status &= ~CHFL_DEOPPED)
+#define ClearServOpOk(x) ((x)->status &= ~CHFL_SERVOPOK)
+#define ClearBurstJoined(x) ((x)->status &= ~CHFL_BURST_JOINED)
+#define ClearDelayedJoin(x) ((x)->status &= ~CHFL_DELAYED)
+
+/** Mode information for a channel */
+struct Mode {
+ unsigned int mode;
+ unsigned int limit;
+ char key[KEYLEN + 1];
+ char upass[KEYLEN + 1];
+ char apass[KEYLEN + 1];
+};
+
+#define BAN_IPMASK 0x0001 /**< ban mask is an IP-number mask */
+#define BAN_OVERLAPPED 0x0002 /**< ban overlapped, need bounce */
+#define BAN_BURSTED 0x0004 /**< Ban part of last BURST */
+#define BAN_BURST_WIPEOUT 0x0008 /**< Ban will be wiped at EOB */
+#define BAN_EXCEPTION 0x0010 /**< Ban is an exception */
+#define BAN_DEL 0x4000 /**< Ban is being removed */
+#define BAN_ADD 0x8000 /**< Ban is being added */
+
+/** A single ban for a channel. */
+struct Ban {
+ struct Ban* next; /**< next ban in the channel */
+ struct irc_in_addr address; /**< address for BAN_IPMASK bans */
+ time_t when; /**< timestamp when ban was added */
+ unsigned short flags; /**< modifier flags for the ban */
+ unsigned char nu_len; /**< length of nick!user part of banstr */
+ unsigned char addrbits; /**< netmask length for BAN_IPMASK bans */
+ char who[NICKLEN+1]; /**< name of client that set the ban */
+ char banstr[NICKLEN+USERLEN+HOSTLEN+3]; /**< hostmask that the ban matches */
+};
+
+/** Information about a channel */
+struct Channel {
+ struct Channel* next; /**< next channel in the global channel list */
+ struct Channel* prev; /**< previous channel */
+ struct Channel* hnext; /**< Next channel in the hash table */
+ struct DestructEvent* destruct_event;
+ time_t creationtime; /**< Creation time of this channel */
+ time_t topic_time; /**< Modification time of the topic */
+ unsigned int users; /**< Number of clients on this channel */
+ struct Membership* members; /**< Pointer to the clients on this channel*/
+ struct SLink* invites; /**< List of invites on this channel */
+ struct Ban* banlist; /**< List of bans on this channel */
+ struct Mode mode; /**< This channels mode */
+ char topic[TOPICLEN + 1]; /**< Channels topic */
+ char topic_nick[NICKLEN + 1]; /**< Nick of the person who set
+ * The topic
+ */
+ char chname[1]; /**< Dynamically allocated string of the
+ * channel name
+ */
+};
+
+/** Information about a /list in progress */
+struct ListingArgs {
+ time_t max_time;
+ time_t min_time;
+ unsigned int max_users;
+ unsigned int min_users;
+ unsigned int flags;
+ time_t max_topic_time;
+ time_t min_topic_time;
+ unsigned int bucket;
+ char wildcard[CHANNELLEN];
+};
+
+struct ModeBuf {
+ unsigned int mb_add; /**< Modes to add */
+ unsigned int mb_rem; /**< Modes to remove */
+ struct Client *mb_source; /**< Source of MODE changes */
+ struct Client *mb_connect; /**< Connection of MODE changes */
+ struct Channel *mb_channel; /**< Channel they affect */
+ unsigned int mb_dest; /**< Destination of MODE changes */
+ unsigned int mb_count; /**< Number of modes w/args */
+ struct {
+ unsigned int mbm_type; /**< Type of argument */
+ union {
+ unsigned int mbma_uint; /**< A limit */
+ char *mbma_string; /**< A string */
+ struct Client *mbma_client; /**< A client */
+ } mbm_arg; /**< The mode argument */
+ unsigned short mbm_oplevel; /**< Oplevel for a bounce */
+ } mb_modeargs[MAXMODEPARAMS];
+ /**< A mode w/args */
+};
+
+#define MODEBUF_DEST_CHANNEL 0x00001 /**< Mode is flushed to channel */
+#define MODEBUF_DEST_SERVER 0x00002 /**< Mode is flushed to server */
+
+#define MODEBUF_DEST_OPMODE 0x00100 /**< Send server mode as OPMODE */
+#define MODEBUF_DEST_DEOP 0x00200 /**< Deop the offender */
+#define MODEBUF_DEST_BOUNCE 0x00400 /**< Bounce the modes */
+#define MODEBUF_DEST_LOG 0x00800 /**< Log the mode changes to OPATH */
+
+#define MODEBUF_DEST_HACK2 0x02000 /**< Send a HACK(2) notice, reverse */
+#define MODEBUF_DEST_HACK3 0x04000 /**< Send a HACK(3) notice, TS == 0 */
+#define MODEBUF_DEST_HACK4 0x08000 /**< Send a HACK(4) notice, TS == 0 */
+
+#define MODEBUF_DEST_NOKEY 0x10000 /**< Don't send the real key */
+
+#define MB_TYPE(mb, i) ((mb)->mb_modeargs[(i)].mbm_type)
+#define MB_UINT(mb, i) ((mb)->mb_modeargs[(i)].mbm_arg.mbma_uint)
+#define MB_STRING(mb, i) ((mb)->mb_modeargs[(i)].mbm_arg.mbma_string)
+#define MB_CLIENT(mb, i) ((mb)->mb_modeargs[(i)].mbm_arg.mbma_client)
+#define MB_OPLEVEL(mb, i) ((mb)->mb_modeargs[(i)].mbm_oplevel)
+
+/** A buffer represeting a list of joins to send */
+struct JoinBuf {
+ struct Client *jb_source; /**< Source of joins (ie, joiner) */
+ struct Client *jb_connect; /**< Connection of joiner */
+ unsigned int jb_type; /**< Type of join (JOIN or CREATE) */
+ char *jb_comment; /**< part comment */
+ time_t jb_create; /**< Creation timestamp */
+ unsigned int jb_count; /**< Number of channels */
+ unsigned int jb_strlen; /**< length so far */
+ struct Channel *jb_channels[MAXJOINARGS];
+ /**< channels joined or whatever */
+};
+
+#define JOINBUF_TYPE_JOIN 0 /**< send JOINs */
+#define JOINBUF_TYPE_CREATE 1 /**< send CREATEs */
+#define JOINBUF_TYPE_PART 2 /**< send PARTs */
+#define JOINBUF_TYPE_PARTALL 3 /**< send local PARTs, but not remote */
+
+extern struct Channel* GlobalChannelList;
+extern int LocalChanOperMode;
+
+/*
+ * Proto types
+ */
+extern void channel_modes(struct Client *cptr, char *mbuf, char *pbuf,
+ int buflen, struct Channel *chptr,
+ struct Membership *member);
+extern int set_mode(struct Client* cptr, struct Client* sptr,
+ struct Channel* chptr, int parc, char* parv[],
+ char* mbuf, char* pbuf, char* npbuf, int* badop);
+extern void send_hack_notice(struct Client *cptr, struct Client *sptr,
+ int parc, char *parv[], int badop, int mtype);
+extern struct Channel *get_channel(struct Client *cptr,
+ char *chname, ChannelGetType flag);
+extern struct Membership* find_member_link(struct Channel * chptr,
+ const struct Client* cptr);
+extern int sub1_from_channel(struct Channel* chptr);
+extern int destruct_channel(struct Channel* chptr);
+extern void add_user_to_channel(struct Channel* chptr, struct Client* who,
+ unsigned int flags, int oplevel);
+extern void make_zombie(struct Membership* member, struct Client* who,
+ struct Client* cptr, struct Client* sptr,
+ struct Channel* chptr);
+extern struct Client* find_chasing(struct Client* sptr, const char* user, int* chasing);
+void add_invite(struct Client *cptr, struct Channel *chptr);
+int number_of_zombies(struct Channel *chptr);
+
+extern const char* find_no_nickchange_channel(struct Client* cptr);
+extern struct Membership* find_channel_member(struct Client* cptr, struct Channel* chptr);
+extern int member_can_send_to_channel(struct Membership* member, int reveal);
+extern int client_can_send_to_channel(struct Client *cptr, struct Channel *chptr, int reveal);
+
+extern void remove_user_from_channel(struct Client *sptr, struct Channel *chptr);
+extern void remove_user_from_all_channels(struct Client* cptr);
+
+extern int is_chan_op(struct Client *cptr, struct Channel *chptr);
+extern int is_zombie(struct Client *cptr, struct Channel *chptr);
+extern int has_voice(struct Client *cptr, struct Channel *chptr);
+/*
+ NOTE: pointer is compared, and not dereferenced, called by
+ add_target with a void*, since targets could be anything,
+ this function can't make any assumptions that it has a channel
+*/
+extern int IsInvited(struct Client* cptr, const void* chptr);
+extern void send_channel_modes(struct Client *cptr, struct Channel *chptr);
+extern char *pretty_mask(char *mask);
+extern void del_invite(struct Client *cptr, struct Channel *chptr);
+extern void list_set_default(void); /* this belongs elsewhere! */
+
+extern void RevealDelayedJoinIfNeeded(struct Client *sptr, struct Channel *chptr);
+extern void RevealDelayedJoin(struct Membership *member);
+extern void CheckDelayedJoins(struct Channel *chan);
+
+extern void modebuf_init(struct ModeBuf *mbuf, struct Client *source,
+ struct Client *connect, struct Channel *chan,
+ unsigned int dest);
+extern void modebuf_mode(struct ModeBuf *mbuf, unsigned int mode);
+extern void modebuf_mode_uint(struct ModeBuf *mbuf, unsigned int mode,
+ unsigned int uint);
+extern void modebuf_mode_string(struct ModeBuf *mbuf, unsigned int mode,
+ char *string, int free);
+extern void modebuf_mode_client(struct ModeBuf *mbuf, unsigned int mode,
+ struct Client *client, int oplevel);
+extern int modebuf_flush(struct ModeBuf *mbuf);
+extern void modebuf_extract(struct ModeBuf *mbuf, char *buf);
+
+extern void mode_ban_invalidate(struct Channel *chan);
+extern void mode_invite_clear(struct Channel *chan);
+
+extern int mode_parse(struct ModeBuf *mbuf, struct Client *cptr,
+ struct Client *sptr, struct Channel *chptr,
+ int parc, char *parv[], unsigned int flags,
+ struct Membership* member);
+
+#define MODE_PARSE_SET 0x01 /**< actually set channel modes */
+#define MODE_PARSE_STRICT 0x02 /**< +m +n +t style not supported */
+#define MODE_PARSE_FORCE 0x04 /**< force the mode to be applied */
+#define MODE_PARSE_BOUNCE 0x08 /**< we will be bouncing the modes */
+#define MODE_PARSE_NOTOPER 0x10 /**< send "not chanop" to user */
+#define MODE_PARSE_NOTMEMBER 0x20 /**< send "not member" to user */
+#define MODE_PARSE_WIPEOUT 0x40 /**< wipe out +k and +l during burst */
+#define MODE_PARSE_BURST 0x80 /**< be even more strict w/extra args */
+
+extern void joinbuf_init(struct JoinBuf *jbuf, struct Client *source,
+ struct Client *connect, unsigned int type,
+ char *comment, time_t create);
+extern void joinbuf_join(struct JoinBuf *jbuf, struct Channel *chan,
+ unsigned int flags);
+extern int joinbuf_flush(struct JoinBuf *jbuf);
+extern struct Ban *make_ban(const char *banstr);
+extern struct Ban *find_ban(struct Client *cptr, struct Ban *banlist);
+extern int apply_ban(struct Ban **banlist, struct Ban *newban, int free);
+extern void free_ban(struct Ban *ban);
+
+#endif /* INCLUDED_channel_h */
projects / ircu2.10.12-pk.git / blobdiff