src/proto.h

   1 /* proto.h - IRC protocol output
   2  * Copyright 2000-2004 srvx Development Team
   3  *
   4  * This file is part of x3.
   5  *
   6  * srvx is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  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.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with srvx; if not, write to the Free Software Foundation,
  18  * Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA.
  19  */
  20
  21 #if !defined(PROTO_H)
  22 #define PROTO_H
  23
  24 /* Warning for those looking at how this code does multi-protocol
  25  * support: It's an awful, nasty hack job.  It is intended for short
  26  * term use, not long term, since we are already developing x3,
  27  * which has much nicer interfaces that hide most of the ugly
  28  * differences between protocol dialects. */
  29
  30 #define COMBO_NUMERIC_LEN 5   /* 1/2, 1/3 or 2/3 digits for server/client parts */
  31 #define MAXLEN          512   /* Maximum IRC line length */
  32 #define MAXNUMPARAMS    200
  33 #define ALLCHANMSG_FUNCS_MAX  4 /* +1 == 5 potential 'allchanmsg' funcs */
  34
  35 #ifdef HAVE_NETINET_IN_H
  36 #include <netinet/in.h>
  37 #endif
  38
  39 struct gline;
  40 struct server;
  41 struct userNode;
  42 struct chanNode;
  43
  44 /* connection manager state */
  45
  46 enum cState
  47 {
  48     DISCONNECTED,
  49     AUTHENTICATING,
  50     BURSTING,
  51     CONNECTED
  52 };
  53
  54 #define UPLINK_UNAVAILABLE      0x001
  55
  56 struct uplinkNode
  57 {
  58     char                *name;
  59
  60     char                *host;
  61     int                 port;
  62
  63     struct sockaddr_in  *bind_addr;
  64     int                 bind_addr_len;
  65
  66     char                *password;
  67     char                *their_password;
  68
  69     enum cState         state;
  70     int                 tries;
  71     int                 max_tries;
  72     long                flags;
  73
  74     struct uplinkNode   *prev;
  75     struct uplinkNode   *next;
  76 };
  77
  78 struct cManagerNode
  79 {
  80     struct uplinkNode   *uplinks;
  81     struct uplinkNode   *uplink;
  82
  83     int                 cycles;
  84     int                 enabled;
  85 };
  86
  87 #ifdef WITH_PROTOCOL_P10
  88 struct server* GetServerN(const char *numeric);
  89 struct userNode* GetUserN(const char *numeric);
  90 #endif
  91
  92 /* Basic protocol parsing support. */
  93 void init_parse(void);
  94 int parse_line(char *line, int recursive);
  95
  96 /* Callback notifications for protocol support. */
  97 typedef void (*chanmsg_func_t) (struct userNode *user, struct chanNode *chan, char *text, struct userNode *bot);
  98 void reg_chanmsg_func(unsigned char prefix, struct userNode *service, chanmsg_func_t handler);
  99 void reg_allchanmsg_func(struct userNode *service, chanmsg_func_t handler);
 100 struct userNode *get_chanmsg_bot(unsigned char prefix);
 101
 102 typedef void (*privmsg_func_t) (struct userNode *user, struct userNode *target, char *text, int server_qualified);
 103 void reg_privmsg_func(struct userNode *user, privmsg_func_t handler);
 104 void reg_notice_func(struct userNode *user, privmsg_func_t handler);
 105 void unreg_privmsg_func(struct userNode *user, privmsg_func_t handler);
 106 void unreg_notice_func(struct userNode *user, privmsg_func_t handler);
 107
 108 typedef void (*oper_func_t) (struct userNode *user);
 109 void reg_oper_func(oper_func_t handler);
 110
 111 extern struct userList dead_users;
 112
 113 /* replay silliness */
 114 void replay_read_line(void);
 115 void replay_event_loop(void);
 116
 117 /* connection maintenance */
 118 void irc_server(struct server *srv);
 119 void irc_user(struct userNode *user);
 120 void irc_nick(struct userNode *user, const char *old_nick);
 121 void irc_introduce(const char *passwd);
 122 void irc_ping(const char *something);
 123 void irc_pong(const char *who, const char *data);
 124 void irc_quit(struct userNode *user, const char *message);
 125 void irc_squit(struct server *srv, const char *message, const char *service_message);
 126
 127 /* messages */
 128 void irc_privmsg(struct userNode *from, const char *to, const char *message);
 129 void irc_notice(struct userNode *from, const char *to, const char *message);
 130 void irc_notice_user(struct userNode *from, struct userNode *to, const char *message);
 131 void irc_wallchops(struct userNode *from, const char *to, const char *message);
 132
 133 /* channel maintenance */
 134 void irc_join(struct userNode *who, struct chanNode *what);
 135 void irc_invite(struct userNode *from, struct userNode *who, struct chanNode *to);
 136 void irc_mode(struct userNode *who, struct chanNode *target, const char *modes);
 137 void irc_kick(struct userNode *who, struct userNode *target, struct chanNode *from, const char *msg);
 138 void irc_part(struct userNode *who, struct chanNode *what, const char *reason);
 139 void irc_topic(struct userNode *who, struct chanNode *what, const char *topic);
 140 void irc_fetchtopic(struct userNode *from, const char *to);
 141
 142 /* network maintenance */
 143 void irc_gline(struct server *srv, struct gline *gline);
 144 void irc_settime(const char *srv_name_mask, time_t new_time);
 145 void irc_ungline(const char *mask);
 146 void irc_error(const char *to, const char *message);
 147 void irc_kill(struct userNode *from, struct userNode *target, const char *message);
 148 void irc_raw(const char *what);
 149 void irc_stats(struct userNode *from, struct server *target, char type);
 150 void irc_svsnick(struct userNode *from, struct userNode *target, const char *newnick);
 151
 152 /* account maintenance */
 153 void irc_account(struct userNode *user, const char *stamp, time_t timestamp);
 154 void irc_regnick(struct userNode *user);
 155 void irc_fakehost(struct userNode *user, const char *host);
 156
 157 /* numeric messages */
 158 void irc_numeric(struct userNode *user, unsigned int num, const char *format, ...);
 159 /* RFC1459-compliant numeric responses */
 160 #define RPL_ENDOFSTATS          219
 161 #define RPL_STATSUPTIME         242
 162 #define RPL_MAXCONNECTIONS      250
 163 #define RPL_WHOISUSER           311
 164 #define RPL_WHOISSERVER         312
 165 #define RPL_WHOISOPERATOR       313
 166 #define RPL_ENDOFWHOIS          318
 167 #define ERR_NOSUCHNICK          401
 168
 169 /* stuff originally from other headers that is really protocol-specific */
 170 int IsChannelName(const char *name);
 171 int is_valid_nick(const char *nick);
 172 struct userNode *AddService(const char *nick, const char *modes, const char *desc, const char *hostname);
 173 struct userNode *AddClone(const char *nick, const char *ident, const char *hostname, const char *desc);
 174 struct server* AddServer(struct server* uplink, const char *name, int hops, time_t boot, time_t link, const char *numeric, const char *description);
 175 void DelServer(struct server* serv, int announce, const char *message);
 176 void DelUser(struct userNode* user, struct userNode *killer, int announce, const char *why);
 177 /* Most protocols will want to make an AddUser helper function. */
 178
 179 /* User modes */
 180 void mod_usermode(struct userNode *user, const char *modes);
 181
 182 /* Channel mode manipulation */
 183 #define KEYLEN          23
 184 typedef unsigned long chan_mode_t;
 185 /* Rules for struct mod_chanmode:
 186  * For a membership mode change, args[n].mode can contain more than
 187  * one mode bit (e.g. MODE_CHANOP|MODE_VOICE).  Hostmask strings are
 188  * "owned" by the caller and are not freed by mod_chanmode_free().
 189  */
 190 struct mod_chanmode {
 191     chan_mode_t modes_set, modes_clear;
 192     unsigned int new_limit, argc;
 193 #ifndef NDEBUG
 194     unsigned int alloc_argc;
 195 #endif
 196     char new_key[KEYLEN + 1];
 197     struct {
 198         unsigned int mode;
 199         union {
 200             struct modeNode *member;
 201             const char *hostmask;
 202         } u;
 203     } args[1];
 204 };
 205 #define MCP_ALLOW_OVB     0x0001 /* allow op, voice, ban manipulation */
 206 #define MCP_FROM_SERVER   0x0002 /* parse as from a server */
 207 #define MCP_KEY_FREE      0x0004 /* -k without a key argument */
 208 #define MCP_REGISTERED    0x0008 /* chan is already registered; do not allow changes to MODE_REGISTERED */
 209 #define MC_ANNOUNCE       0x0100 /* send a mod_chanmode() change out */
 210 #define MC_NOTIFY         0x0200 /* make local callbacks to announce */
 211 #ifdef NDEBUG
 212 #define mod_chanmode_init(CHANMODE) do { memset((CHANMODE), 0, sizeof(*CHANMODE)); } while (0)
 213 #else
 214 #define mod_chanmode_init(CHANMODE) do { memset((CHANMODE), 0, sizeof(*CHANMODE)); (CHANMODE)->alloc_argc = ArrayLength((CHANMODE)->args); } while (0)
 215 #endif
 216
 217 struct mod_chanmode *mod_chanmode_alloc(unsigned int argc);
 218 struct mod_chanmode *mod_chanmode_dup(struct mod_chanmode *orig, unsigned int extra);
 219 struct mod_chanmode *mod_chanmode_parse(struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags);
 220 void mod_chanmode_apply(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change);
 221 void mod_chanmode_announce(struct userNode *who, struct chanNode *channel, struct mod_chanmode *change);
 222 char *mod_chanmode_format(struct mod_chanmode *desc, char *buffer);
 223 void mod_chanmode_free(struct mod_chanmode *change);
 224 int mod_chanmode(struct userNode *who, struct chanNode *channel, char **modes, unsigned int argc, unsigned int flags);
 225 typedef void (*mode_change_func_t) (struct chanNode *channel, struct userNode *user, const struct mod_chanmode *change);
 226 void reg_mode_change_func(mode_change_func_t handler);
 227 int irc_make_chanmode(struct chanNode *chan, char *out);
 228
 229 /* The "default" for generate_hostmask is to have all of these options off. */
 230 #define GENMASK_STRICT_HOST   1
 231 #define GENMASK_STRICT_IDENT  32
 232 #define GENMASK_ANY_IDENT     64
 233 #define GENMASK_STRICT   (GENMASK_STRICT_IDENT|GENMASK_STRICT_HOST)
 234 #define GENMASK_USENICK  2
 235 #define GENMASK_OMITNICK 4  /* Hurray for Kevin! */
 236 #define GENMASK_BYIP     8
 237 #define GENMASK_X3MASK 16
 238 #define GENMASK_NO_HIDING 128
 239 char *generate_hostmask(struct userNode *user, int options);
 240
 241 #endif /* !defined(PROTO_H) */