include/client.h

   1 /*
   2  *  charybdis: A useful ircd.
   3  *  client.h: The ircd client header.
   4  *
   5  *  Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
   6  *  Copyright (C) 1996-2002 Hybrid Development Team
   7  *  Copyright (C) 2002-2004 ircd-ratbox development team
   8  *  Copyright (C) 2005 William Pitcock and Jilles Tjoelker
   9  *
  10  *  This program is free software; you can redistribute it and/or modify
  11  *  it under the terms of the GNU General Public License as published by
  12  *  the Free Software Foundation; either version 2 of the License, or
  13  *  (at your option) any later version.
  14  *
  15  *  This program is distributed in the hope that it will be useful,
  16  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  *  GNU General Public License for more details.
  19  *
  20  *  You should have received a copy of the GNU General Public License
  21  *  along with this program; if not, write to the Free Software
  22  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307
  23  *  USA
  24  */
  25
  26 #ifndef INCLUDED_client_h
  27 #define INCLUDED_client_h
  28
  29 #include "defaults.h"
  30
  31 #include "ircd_defs.h"
  32 #include "channel.h"
  33 #include "dns.h"
  34 #include "snomask.h"
  35 #include "match.h"
  36 #include "ircd.h"
  37 #include "privilege.h"
  38
  39 /* other structs */
  40 struct Blacklist;
  41
  42 /* we store ipv6 ips for remote clients, so this needs to be v6 always */
  43 #define HOSTIPLEN       53      /* sizeof("ffff:ffff:ffff:ffff:ffff:ffff:255.255.255.255.ipv6") */
  44 #define PASSWDLEN       128
  45 #define CIPHERKEYLEN    64      /* 512bit */
  46 #define CLIENT_BUFSIZE  512     /* must be at least 512 bytes */
  47
  48 #define IDLEN           10
  49
  50 #define TGCHANGE_NUM            10      /* how many targets we keep track of */
  51 #define TGCHANGE_REPLY          5       /* how many reply targets */
  52 #define TGCHANGE_INITIAL        10      /* initial free targets (normal) */
  53 #define TGCHANGE_INITIAL_LOW    4       /* initial free targets (possible spambot) */
  54
  55 /*
  56  * pre declare structs
  57  */
  58 struct ConfItem;
  59 struct Whowas;
  60 struct DNSReply;
  61 struct Listener;
  62 struct Client;
  63 struct User;
  64 struct Server;
  65 struct LocalUser;
  66 struct PreClient;
  67 struct ListClient;
  68 struct scache_entry;
  69 struct ws_ctl;
  70
  71 typedef int SSL_OPEN_CB(struct Client *, int status);
  72
  73 /*
  74  * Client structures
  75  */
  76 struct User
  77 {
  78         rb_dlink_list channel;  /* chain of channel pointer blocks */
  79         rb_dlink_list invited;  /* chain of invite pointer blocks */
  80         char *away;             /* pointer to away message */
  81         int refcnt;             /* Number of times this block is referenced */
  82
  83         char suser[NICKLEN+1];
  84 };
  85
  86 struct Server
  87 {
  88         struct User *user;      /* who activated this connection */
  89         char by[NICKLEN];
  90         rb_dlink_list servers;
  91         rb_dlink_list users;
  92         int caps;               /* capabilities bit-field */
  93         char *fullcaps;
  94         struct scache_entry *nameinfo;
  95 };
  96
  97 struct ZipStats
  98 {
  99         unsigned long long in;
 100         unsigned long long in_wire;
 101         unsigned long long out;
 102         unsigned long long out_wire;
 103         double in_ratio;
 104         double out_ratio;
 105 };
 106
 107 struct Client
 108 {
 109         rb_dlink_node node;
 110         rb_dlink_node lnode;
 111         struct User *user;      /* ...defined, if this is a User */
 112         struct Server *serv;    /* ...defined, if this is a server */
 113         struct Client *servptr; /* Points to server this Client is on */
 114         struct Client *from;    /* == self, if Local Client, *NEVER* NULL! */
 115
 116         rb_dlink_list whowas_clist;
 117
 118         time_t tsinfo;          /* TS on the nick, SVINFO on server */
 119         unsigned int umodes;    /* opers, normal users subset */
 120         uint64_t flags;         /* client flags */
 121
 122         unsigned int snomask;   /* server notice mask */
 123
 124         int hopcount;           /* number of servers to this 0 = local */
 125         unsigned short status;  /* Client type */
 126         unsigned char handler;  /* Handler index */
 127         unsigned long serial;   /* used to enforce 1 send per nick */
 128
 129         /* client->name is the unique name for a client nick or host */
 130         char name[HOSTLEN + 1];
 131
 132         /*
 133          * client->username is the username from ident or the USER message,
 134          * If the client is idented the USER message is ignored, otherwise
 135          * the username part of the USER message is put here prefixed with a
 136          * tilde depending on the I:line, Once a client has registered, this
 137          * field should be considered read-only.
 138          */
 139         char username[USERLEN + 1];     /* client's username */
 140
 141         /*
 142          * client->host contains the resolved name or ip address
 143          * as a string for the user, it may be fiddled with for oper spoofing etc.
 144          */
 145         char host[HOSTLEN + 1]; /* client's hostname */
 146         char orighost[HOSTLEN + 1]; /* original hostname (before dynamic spoofing) */
 147         char sockhost[HOSTIPLEN + 1]; /* clients ip */
 148         char info[REALLEN + 1]; /* Free form additional client info */
 149
 150         char id[IDLEN]; /* UID/SID, unique on the network */
 151
 152         /* list of who has this client on their allow list, its counterpart
 153          * is in LocalUser
 154          */
 155         rb_dlink_list on_allow_list;
 156
 157         time_t first_received_message_time;
 158         int received_number_of_privmsgs;
 159         int flood_noticed;
 160
 161         struct LocalUser *localClient;
 162         struct PreClient *preClient;
 163
 164         time_t large_ctcp_sent; /* ctcp to large group sent, relax flood checks */
 165         char *certfp; /* client certificate fingerprint */
 166 };
 167
 168 struct LocalUser
 169 {
 170         rb_dlink_node tnode;    /* This is the node for the local list type the client is on */
 171         rb_dlink_list connids;  /* This is the list of connids to free */
 172
 173         /*
 174          * The following fields are allocated only for local clients
 175          * (directly connected to *this* server with a socket.
 176          */
 177         /* Anti flooding part, all because of lamers... */
 178         time_t last_join_time;  /* when this client last
 179                                    joined a channel */
 180         time_t last_leave_time; /* when this client last
 181                                  * left a channel */
 182         int join_leave_count;   /* count of JOIN/LEAVE in less than
 183                                    MIN_JOIN_LEAVE_TIME seconds */
 184         int oper_warn_count_down;       /* warn opers of this possible
 185                                            spambot every time this gets to 0 */
 186         time_t last_caller_id_time;
 187
 188         time_t lasttime;        /* last time we parsed something */
 189         time_t firsttime;       /* time client was created */
 190
 191         /* Send and receive linebuf queues .. */
 192         buf_head_t buf_sendq;
 193         buf_head_t buf_recvq;
 194
 195         /*
 196          * we want to use unsigned int here so the sizes have a better chance of
 197          * staying the same on 64 bit machines. The current trend is to use
 198          * I32LP64, (32 bit ints, 64 bit longs and pointers) and since ircd
 199          * will NEVER run on an operating system where ints are less than 32 bits,
 200          * it's a relatively safe bet to use ints. Since right shift operations are
 201          * performed on these, it's not safe to allow them to become negative,
 202          * which is possible for long running server connections. Unsigned values
 203          * generally overflow gracefully. --Bleep
 204          *
 205          * We have modern conveniences. Let's use uint32_t. --Elizafox
 206          */
 207         uint32_t sendM;         /* Statistics: protocol messages send */
 208         uint32_t sendK;         /* Statistics: total k-bytes send */
 209         uint32_t receiveM;      /* Statistics: protocol messages received */
 210         uint32_t receiveK;      /* Statistics: total k-bytes received */
 211         uint16_t sendB;         /* counters to count upto 1-k lots of bytes */
 212         uint16_t receiveB;      /* sent and received. */
 213         struct Listener *listener;      /* listener accepted from */
 214         struct ConfItem *att_conf;      /* attached conf */
 215         struct server_conf *att_sconf;
 216
 217         struct rb_sockaddr_storage ip;
 218         time_t last_nick_change;
 219         int number_of_nick_changes;
 220
 221         /*
 222          * XXX - there is no reason to save this, it should be checked when it's
 223          * received and not stored, this is not used after registration
 224          *
 225          * agreed. lets get rid of it someday! --nenolod
 226          */
 227         char *passwd;
 228         char *auth_user;
 229         char *opername; /* name of operator{} block being used or tried (challenge) */
 230         char *challenge;
 231         char *fullcaps;
 232         char *cipher_string;
 233
 234         int caps;               /* capabilities bit-field */
 235         rb_fde_t *F;            /* >= 0, for local clients */
 236
 237         /* time challenge response is valid for */
 238         time_t chal_time;
 239
 240         time_t next_away;       /* Don't allow next away before... */
 241         time_t last;
 242
 243         /* clients allowed to talk through +g */
 244         rb_dlink_list allow_list;
 245
 246         /* nicknames theyre monitoring */
 247         rb_dlink_list monitor_list;
 248
 249         /*
 250          * Anti-flood stuff. We track how many messages were parsed and how
 251          * many we were allowed in the current second, and apply a simple decay
 252          * to avoid flooding.
 253          *   -- adrian
 254          */
 255         int sent_parsed;        /* how many messages we've parsed in this second */
 256         time_t last_knock;      /* time of last knock */
 257         uint32_t random_ping;
 258
 259         /* target change stuff */
 260         /* targets we're aware of (fnv32(use_id(target_p))):
 261          * 0..TGCHANGE_NUM-1 regular slots
 262          * TGCHANGE_NUM..TGCHANGE_NUM+TGCHANGE_REPLY-1 reply slots
 263          */
 264         uint32_t targets[TGCHANGE_NUM + TGCHANGE_REPLY];
 265         unsigned int targets_free;      /* free targets */
 266         time_t target_last;             /* last time we cleared a slot */
 267
 268         /* ratelimit items */
 269         time_t ratelimit;
 270         unsigned int join_who_credits;
 271
 272         struct ListClient *safelist_data;
 273
 274         char *mangledhost; /* non-NULL if host mangling module loaded and
 275                               applicable to this client */
 276
 277         struct _ssl_ctl *ssl_ctl;               /* which ssl daemon we're associate with */
 278         struct _ssl_ctl *z_ctl;                 /* second ctl for ssl+zlib */
 279         struct ws_ctl *ws_ctl;                  /* ctl for wsockd */
 280         SSL_OPEN_CB *ssl_callback;              /* ssl connection is now open */
 281         uint32_t localflags;
 282         struct ZipStats *zipstats;              /* zipstats */
 283         uint16_t cork_count;                    /* used for corking/uncorking connections */
 284         struct ev_entry *event;                 /* used for associated events */
 285
 286         struct PrivilegeSet *privset;           /* privset... */
 287
 288         char sasl_agent[IDLEN];
 289         unsigned char sasl_out;
 290         unsigned char sasl_complete;
 291
 292         unsigned int sasl_messages;
 293         unsigned int sasl_failures;
 294         time_t sasl_next_retry;
 295 };
 296
 297 #define AUTHC_F_DEFERRED 0x01
 298 #define AUTHC_F_COMPLETE 0x02
 299
 300 struct AuthClient
 301 {
 302         uint32_t cid;   /* authd id */
 303         time_t timeout; /* When to terminate authd query */
 304         bool accepted;  /* did authd accept us? */
 305         char cause;     /* rejection cause */
 306         char *data;     /* reason data */
 307         char *reason;   /* reason we were rejected */
 308         int flags;
 309 };
 310
 311 struct PreClient
 312 {
 313         char spoofnick[NICKLEN + 1];
 314         char spoofuser[USERLEN + 1];
 315         char spoofhost[HOSTLEN + 1];
 316
 317         struct AuthClient auth;
 318
 319         struct rb_sockaddr_storage lip; /* address of our side of the connection */
 320 };
 321
 322 struct ListClient
 323 {
 324         char *chname;
 325         unsigned int users_min, users_max;
 326         time_t created_min, created_max, topic_min, topic_max;
 327         int operspy;
 328 };
 329
 330 /*
 331  * status macros.
 332  */
 333 #define STAT_CONNECTING         0x01
 334 #define STAT_HANDSHAKE          0x02
 335 #define STAT_ME                 0x04
 336 #define STAT_UNKNOWN            0x08
 337 #define STAT_REJECT             0x10
 338 #define STAT_SERVER             0x20
 339 #define STAT_CLIENT             0x40
 340
 341
 342 #define IsRegisteredUser(x)     ((x)->status == STAT_CLIENT)
 343 #define IsRegistered(x)         (((x)->status  > STAT_UNKNOWN) && ((x)->status != STAT_REJECT))
 344 #define IsConnecting(x)         ((x)->status == STAT_CONNECTING)
 345 #define IsHandshake(x)          ((x)->status == STAT_HANDSHAKE)
 346 #define IsMe(x)                 ((x)->status == STAT_ME)
 347 #define IsUnknown(x)            ((x)->status == STAT_UNKNOWN)
 348 #define IsServer(x)             ((x)->status == STAT_SERVER)
 349 #define IsClient(x)             ((x)->status == STAT_CLIENT)
 350 #define IsReject(x)             ((x)->status == STAT_REJECT)
 351
 352 #define IsAnyServer(x)          (IsServer(x) || IsHandshake(x) || IsConnecting(x))
 353
 354 #define IsOper(x)               ((x)->umodes & UMODE_OPER)
 355 #define IsAdmin(x)              ((x)->umodes & UMODE_ADMIN)
 356
 357 #define SetReject(x)            {(x)->status = STAT_REJECT; \
 358                                  (x)->handler = UNREGISTERED_HANDLER; }
 359
 360 #define SetConnecting(x)        {(x)->status = STAT_CONNECTING; \
 361                                  (x)->handler = UNREGISTERED_HANDLER; }
 362
 363 #define SetHandshake(x)         {(x)->status = STAT_HANDSHAKE; \
 364                                  (x)->handler = UNREGISTERED_HANDLER; }
 365
 366 #define SetMe(x)                {(x)->status = STAT_ME; \
 367                                  (x)->handler = UNREGISTERED_HANDLER; }
 368
 369 #define SetUnknown(x)           {(x)->status = STAT_UNKNOWN; \
 370                                  (x)->handler = UNREGISTERED_HANDLER; }
 371
 372 #define SetServer(x)            {(x)->status = STAT_SERVER; \
 373                                  (x)->handler = SERVER_HANDLER; }
 374
 375 #define SetClient(x)            {(x)->status = STAT_CLIENT; \
 376                                  (x)->handler = IsOper((x)) ? \
 377                                         OPER_HANDLER : CLIENT_HANDLER; }
 378 #define SetRemoteClient(x)      {(x)->status = STAT_CLIENT; \
 379                                  (x)->handler = RCLIENT_HANDLER; }
 380
 381 #define STAT_CLIENT_PARSE (STAT_UNKNOWN | STAT_CLIENT)
 382 #define STAT_SERVER_PARSE (STAT_CONNECTING | STAT_HANDSHAKE | STAT_SERVER)
 383
 384 #define PARSE_AS_CLIENT(x)      ((x)->status & STAT_CLIENT_PARSE)
 385 #define PARSE_AS_SERVER(x)      ((x)->status & STAT_SERVER_PARSE)
 386
 387
 388 /*
 389  * ts stuff
 390  */
 391 #define TS_CURRENT      6
 392 #define TS_MIN          6
 393
 394 #define TS_DOESTS       0x10000000
 395 #define DoesTS(x)       ((x)->tsinfo & TS_DOESTS)
 396
 397 #define has_id(source)  ((source)->id[0] != '\0')
 398 #define use_id(source)  ((source)->id[0] != '\0' ? (source)->id : (source)->name)
 399
 400 /* if target is TS6, use id if it has one, else name */
 401 #define get_id(source, target) ((IsServer(target->from) && has_id(target->from)) ? \
 402                                 use_id(source) : (source)->name)
 403
 404 /* housekeeping flags */
 405
 406 #define FLAGS_PINGSENT          0x00000001      /* Unreplied ping sent */
 407 #define FLAGS_DEAD              0x00000002      /* Local socket is dead--Exiting soon */
 408 #define FLAGS_KILLED            0x00000004      /* Prevents "QUIT" from being sent for this */
 409 #define FLAGS_SENTUSER          0x00000008      /* Client sent a USER command. */
 410 #define FLAGS_CLICAP            0x00000010      /* In CAP negotiation, wait for CAP END */
 411 #define FLAGS_CLOSING           0x00000020      /* set when closing to suppress errors */
 412 #define FLAGS_PING_COOKIE       0x00000040      /* has sent ping cookie */
 413 #define FLAGS_GOTID             0x00000080      /* successful ident lookup achieved */
 414 #define FLAGS_FLOODDONE         0x00000100      /* flood grace period over / reported */
 415 #define FLAGS_NORMALEX          0x00000200      /* Client exited normally */
 416 #define FLAGS_MARK              0x00000400      /* marked client */
 417 #define FLAGS_HIDDEN            0x00000800      /* hidden server */
 418 #define FLAGS_EOB               0x00001000      /* EOB */
 419 #define FLAGS_MYCONNECT         0x00002000      /* MyConnect */
 420 #define FLAGS_IOERROR           0x00004000      /* IO error */
 421 #define FLAGS_SERVICE           0x00008000      /* network service */
 422 #define FLAGS_TGCHANGE          0x00010000      /* we're allowed to clear something */
 423 #define FLAGS_DYNSPOOF          0x00020000      /* dynamic spoof, only opers see ip */
 424 #define FLAGS_TGEXCESSIVE       0x00040000      /* whether the client has attemped to change targets excessively fast */
 425 #define FLAGS_CLICAP_DATA       0x00080000      /* requested CAP LS 302 */
 426 #define FLAGS_EXTENDCHANS       0x00100000
 427 #define FLAGS_EXEMPTRESV        0x00200000
 428 #define FLAGS_EXEMPTKLINE       0x00400000
 429 #define FLAGS_EXEMPTFLOOD       0x00800000
 430 #define FLAGS_IP_SPOOFING       0x01000000
 431 #define FLAGS_EXEMPTSPAMBOT     0x02000000
 432 #define FLAGS_EXEMPTSHIDE       0x04000000
 433 #define FLAGS_EXEMPTJUPE        0x08000000
 434
 435
 436 /* flags for local clients, this needs stuff moved from above to here at some point */
 437 #define LFLAGS_SSL              0x00000001
 438 #define LFLAGS_FLUSH            0x00000002
 439 #define LFLAGS_CORK             0x00000004
 440
 441 /* umodes, settable flags */
 442 /* lots of this moved to snomask -- jilles */
 443 #define UMODE_SERVNOTICE   0x0001       /* server notices */
 444 #define UMODE_WALLOP       0x0002       /* send wallops to them */
 445 #define UMODE_OPERWALL     0x0004       /* Operwalls */
 446 #define UMODE_INVISIBLE    0x0008       /* makes user invisible */
 447 #define UMODE_CALLERID     0x0010       /* block unless caller id's */
 448 #define UMODE_LOCOPS       0x0020       /* show locops */
 449 #define UMODE_SERVICE      0x0040
 450 #define UMODE_DEAF         0x0080
 451 #define UMODE_NOFORWARD    0x0100       /* don't forward */
 452 #define UMODE_REGONLYMSG   0x0200       /* only allow logged in users to msg */
 453
 454 /* user information flags, only settable by remote mode or local oper */
 455 #define UMODE_OPER         0x1000       /* Operator */
 456 #define UMODE_ADMIN        0x2000       /* Admin on server */
 457 #define UMODE_SSLCLIENT    0x4000       /* using SSL */
 458
 459 #define DEFAULT_OPER_UMODES (UMODE_SERVNOTICE | UMODE_OPERWALL | \
 460                              UMODE_WALLOP | UMODE_LOCOPS)
 461 #define DEFAULT_OPER_SNOMASK SNO_GENERAL
 462
 463 /*
 464  * flags macros.
 465  */
 466 #define IsPerson(x)             (IsClient(x) && (x)->user != NULL)
 467 #define HasServlink(x)          ((x)->flags &  FLAGS_SERVLINK)
 468 #define SetServlink(x)          ((x)->flags |= FLAGS_SERVLINK)
 469 #define MyConnect(x)            ((x)->flags & FLAGS_MYCONNECT)
 470 #define SetMyConnect(x)         ((x)->flags |= FLAGS_MYCONNECT)
 471 #define ClearMyConnect(x)       ((x)->flags &= ~FLAGS_MYCONNECT)
 472
 473 #define MyClient(x)             (MyConnect(x) && IsClient(x))
 474 #define SetMark(x)              ((x)->flags |= FLAGS_MARK)
 475 #define ClearMark(x)            ((x)->flags &= ~FLAGS_MARK)
 476 #define IsMarked(x)             ((x)->flags & FLAGS_MARK)
 477 #define SetHidden(x)            ((x)->flags |= FLAGS_HIDDEN)
 478 #define ClearHidden(x)          ((x)->flags &= ~FLAGS_HIDDEN)
 479 #define IsHidden(x)             ((x)->flags & FLAGS_HIDDEN)
 480 #define ClearEob(x)             ((x)->flags &= ~FLAGS_EOB)
 481 #define SetEob(x)               ((x)->flags |= FLAGS_EOB)
 482 #define HasSentEob(x)           ((x)->flags & FLAGS_EOB)
 483 #define IsDead(x)               ((x)->flags &  FLAGS_DEAD)
 484 #define SetDead(x)              ((x)->flags |= FLAGS_DEAD)
 485 #define IsClosing(x)            ((x)->flags & FLAGS_CLOSING)
 486 #define SetClosing(x)           ((x)->flags |= FLAGS_CLOSING)
 487 #define IsIOError(x)            ((x)->flags & FLAGS_IOERROR)
 488 #define SetIOError(x)           ((x)->flags |= FLAGS_IOERROR)
 489 #define IsAnyDead(x)            (IsIOError(x) || IsDead(x) || IsClosing(x))
 490 #define IsTGChange(x)           ((x)->flags & FLAGS_TGCHANGE)
 491 #define SetTGChange(x)          ((x)->flags |= FLAGS_TGCHANGE)
 492 #define ClearTGChange(x)        ((x)->flags &= ~FLAGS_TGCHANGE)
 493 #define IsDynSpoof(x)           ((x)->flags & FLAGS_DYNSPOOF)
 494 #define SetDynSpoof(x)          ((x)->flags |= FLAGS_DYNSPOOF)
 495 #define ClearDynSpoof(x)        ((x)->flags &= ~FLAGS_DYNSPOOF)
 496 #define IsTGExcessive(x)        ((x)->flags & FLAGS_TGEXCESSIVE)
 497 #define SetTGExcessive(x)       ((x)->flags |= FLAGS_TGEXCESSIVE)
 498 #define ClearTGExcessive(x)     ((x)->flags &= ~FLAGS_TGEXCESSIVE)
 499
 500 /* local flags */
 501
 502 #define IsSSL(x)                ((x)->localClient->localflags & LFLAGS_SSL)
 503 #define SetSSL(x)               ((x)->localClient->localflags |= LFLAGS_SSL)
 504 #define ClearSSL(x)             ((x)->localClient->localflags &= ~LFLAGS_SSL)
 505
 506 #define IsFlush(x)              ((x)->localClient->localflags & LFLAGS_FLUSH)
 507 #define SetFlush(x)             ((x)->localClient->localflags |= LFLAGS_FLUSH)
 508 #define ClearFlush(x)           ((x)->localClient->localflags &= ~LFLAGS_FLUSH)
 509
 510 /* oper flags */
 511 #define MyOper(x)               (MyConnect(x) && IsOper(x))
 512
 513 #define SetOper(x)              {(x)->umodes |= UMODE_OPER; \
 514                                  if (MyClient((x))) (x)->handler = OPER_HANDLER;}
 515
 516 #define ClearOper(x)            {(x)->umodes &= ~(UMODE_OPER|UMODE_ADMIN); \
 517                                  if (MyClient((x)) && !IsOper((x)) && !IsServer((x))) \
 518                                   (x)->handler = CLIENT_HANDLER; }
 519
 520 /* umode flags */
 521 #define IsInvisible(x)          ((x)->umodes & UMODE_INVISIBLE)
 522 #define SetInvisible(x)         ((x)->umodes |= UMODE_INVISIBLE)
 523 #define ClearInvisible(x)       ((x)->umodes &= ~UMODE_INVISIBLE)
 524 #define IsSSLClient(x)          ((x)->umodes & UMODE_SSLCLIENT)
 525 #define SetSSLClient(x)         ((x)->umodes |= UMODE_SSLCLIENT)
 526 #define ClearSSLClient(x)       ((x)->umodes &= ~UMODE_SSLCLIENT)
 527 #define SendWallops(x)          ((x)->umodes & UMODE_WALLOP)
 528 #define SendLocops(x)           ((x)->umodes & UMODE_LOCOPS)
 529 #define SendServNotice(x)       ((x)->umodes & UMODE_SERVNOTICE)
 530 #define SendOperwall(x)         ((x)->umodes & UMODE_OPERWALL)
 531 #define IsSetCallerId(x)        ((x)->umodes & UMODE_CALLERID)
 532 #define IsService(x)            ((x)->umodes & UMODE_SERVICE)
 533 #define IsDeaf(x)               ((x)->umodes & UMODE_DEAF)
 534 #define IsNoForward(x)          ((x)->umodes & UMODE_NOFORWARD)
 535 #define IsSetRegOnlyMsg(x)      ((x)->umodes & UMODE_REGONLYMSG)
 536
 537 #define SetGotId(x)             ((x)->flags |= FLAGS_GOTID)
 538 #define IsGotId(x)              (((x)->flags & FLAGS_GOTID) != 0)
 539
 540 #define IsExemptKline(x)        ((x)->flags & FLAGS_EXEMPTKLINE)
 541 #define SetExemptKline(x)       ((x)->flags |= FLAGS_EXEMPTKLINE)
 542 #define IsExemptFlood(x)        ((x)->flags & FLAGS_EXEMPTFLOOD)
 543 #define SetExemptFlood(x)       ((x)->flags |= FLAGS_EXEMPTFLOOD)
 544 #define IsExemptSpambot(x)      ((x)->flags & FLAGS_EXEMPTSPAMBOT)
 545 #define SetExemptSpambot(x)     ((x)->flags |= FLAGS_EXEMPTSPAMBOT)
 546 #define IsExemptShide(x)        ((x)->flags & FLAGS_EXEMPTSHIDE)
 547 #define SetExemptShide(x)       ((x)->flags |= FLAGS_EXEMPTSHIDE)
 548 #define IsExemptJupe(x)         ((x)->flags & FLAGS_EXEMPTJUPE)
 549 #define SetExemptJupe(x)        ((x)->flags |= FLAGS_EXEMPTJUPE)
 550 #define IsExemptResv(x)         ((x)->flags & FLAGS_EXEMPTRESV)
 551 #define SetExemptResv(x)        ((x)->flags |= FLAGS_EXEMPTRESV)
 552 #define IsIPSpoof(x)            ((x)->flags & FLAGS_IP_SPOOFING)
 553 #define SetIPSpoof(x)           ((x)->flags |= FLAGS_IP_SPOOFING)
 554 #define IsExtendChans(x)        ((x)->flags & FLAGS_EXTENDCHANS)
 555 #define SetExtendChans(x)       ((x)->flags |= FLAGS_EXTENDCHANS)
 556
 557 /* for local users: flood grace period is over
 558  * for servers: mentioned in networknotice.c notice
 559  */
 560 #define IsFloodDone(x)          ((x)->flags & FLAGS_FLOODDONE)
 561 #define SetFloodDone(x)         ((x)->flags |= FLAGS_FLOODDONE)
 562
 563 /* These also operate on the uplink from which it came */
 564 #define IsCork(x)               (MyConnect(x) ? (x)->localClient->cork_count : (x)->from->localClient->cork_count)
 565 #define SetCork(x)              (MyConnect(x) ? (x)->localClient->cork_count++ : (x)->from->localClient->cork_count++ )
 566 #define ClearCork(x)            (MyConnect(x) ? (x)->localClient->cork_count-- : (x)->from->localClient->cork_count--)
 567
 568 /*
 569  * definitions for get_client_name
 570  */
 571 #define HIDE_IP 0
 572 #define SHOW_IP 1
 573 #define MASK_IP 2
 574
 575 extern void check_banned_lines(void);
 576 extern void check_klines_event(void *unused);
 577 extern void check_klines(void);
 578 extern void check_dlines(void);
 579 extern void check_xlines(void);
 580 extern void resv_nick_fnc(const char *mask, const char *reason, int temp_time);
 581
 582 extern const char *get_client_name(struct Client *client, int show_ip);
 583 extern const char *log_client_name(struct Client *, int);
 584 extern int is_remote_connect(struct Client *);
 585 extern void init_client(void);
 586 extern struct Client *make_client(struct Client *from);
 587 extern void free_pre_client(struct Client *client);
 588 extern void free_client(struct Client *client);
 589
 590 extern int exit_client(struct Client *, struct Client *, struct Client *, const char *);
 591
 592 extern void error_exit_client(struct Client *, int);
 593
 594 extern void count_local_client_memory(size_t * count, size_t * memory);
 595 extern void count_remote_client_memory(size_t * count, size_t * memory);
 596
 597 extern int clean_nick(const char *, int loc_client);
 598
 599 extern struct Client *find_chasing(struct Client *, const char *, int *);
 600 extern struct Client *find_person(const char *);
 601 extern struct Client *find_named_person(const char *);
 602 extern struct Client *next_client(struct Client *, const char *);
 603
 604 #define accept_message(s, t) ((s) == (t) || (rb_dlinkFind((s), &((t)->localClient->allow_list))))
 605 extern void del_all_accepts(struct Client *client_p);
 606
 607 extern void dead_link(struct Client *client_p, int sendqex);
 608 extern int show_ip(struct Client *source_p, struct Client *target_p);
 609 extern int show_ip_conf(struct ConfItem *aconf, struct Client *source_p);
 610 extern int show_ip_whowas(struct Whowas *whowas, struct Client *source_p);
 611
 612 extern void free_user(struct User *, struct Client *);
 613 extern struct User *make_user(struct Client *);
 614 extern struct Server *make_server(struct Client *);
 615 extern void close_connection(struct Client *);
 616 extern void init_uid(void);
 617 extern char *generate_uid(void);
 618
 619 void allocate_away(struct Client *);
 620 void free_away(struct Client *);
 621
 622 uint32_t connid_get(struct Client *client_p);
 623 void connid_put(uint32_t id);
 624 void client_release_connids(struct Client *client_p);
 625
 626 #endif /* INCLUDED_client_h */