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
  47 #define IDLEN           10
  48
  49 #define TGCHANGE_NUM            10      /* how many targets we keep track of */
  50 #define TGCHANGE_REPLY          5       /* how many reply targets */
  51 #define TGCHANGE_INITIAL        10      /* initial free targets (normal) */
  52 #define TGCHANGE_INITIAL_LOW    4       /* initial free targets (possible spambot) */
  53
  54 /*
  55  * pre declare structs
  56  */
  57 struct ConfItem;
  58 struct Whowas;
  59 struct DNSReply;
  60 struct Listener;
  61 struct Client;
  62 struct User;
  63 struct Server;
  64 struct LocalUser;
  65 struct PreClient;
  66 struct ListClient;
  67 struct scache_entry;
  68 struct ws_ctl;
  69
  70 typedef int SSL_OPEN_CB(struct Client *, int status);
  71
  72 /*
  73  * Client structures
  74  */
  75 struct User
  76 {
  77         rb_dlink_list channel;  /* chain of channel pointer blocks */
  78         rb_dlink_list invited;  /* chain of invite pointer blocks */
  79         char *away;             /* pointer to away message */
  80         int refcnt;             /* Number of times this block is referenced */
  81
  82         char suser[NICKLEN+1];
  83 };
  84
  85 struct Server
  86 {
  87         struct User *user;      /* who activated this connection */
  88         char by[NICKLEN];
  89         rb_dlink_list servers;
  90         rb_dlink_list users;
  91         int caps;               /* capabilities bit-field */
  92         char *fullcaps;
  93         struct scache_entry *nameinfo;
  94 };
  95
  96 struct ZipStats
  97 {
  98         unsigned long long in;
  99         unsigned long long in_wire;
 100         unsigned long long out;
 101         unsigned long long out_wire;
 102         double in_ratio;
 103         double out_ratio;
 104 };
 105
 106 struct Client
 107 {
 108         rb_dlink_node node;
 109         rb_dlink_node lnode;
 110         struct User *user;      /* ...defined, if this is a User */
 111         struct Server *serv;    /* ...defined, if this is a server */
 112         struct Client *servptr; /* Points to server this Client is on */
 113         struct Client *from;    /* == self, if Local Client, *NEVER* NULL! */
 114
 115         rb_dlink_list whowas_clist;
 116
 117         time_t tsinfo;          /* TS on the nick, SVINFO on server */
 118         unsigned int umodes;    /* opers, normal users subset */
 119         uint64_t flags;         /* client flags */
 120
 121         unsigned int snomask;   /* server notice mask */
 122
 123         int hopcount;           /* number of servers to this 0 = local */
 124         unsigned short status;  /* Client type */
 125         unsigned char handler;  /* Handler index */
 126         unsigned long serial;   /* used to enforce 1 send per nick */
 127
 128         /* client->name is the unique name for a client nick or host */
 129         char name[NAMELEN + 1];
 130
 131         /*
 132          * client->username is the username from ident or the USER message,
 133          * If the client is idented the USER message is ignored, otherwise
 134          * the username part of the USER message is put here prefixed with a
 135          * tilde depending on the I:line, Once a client has registered, this
 136          * field should be considered read-only.
 137          */
 138         char username[USERLEN + 1];     /* client's username */
 139
 140         /*
 141          * client->host contains the resolved name or ip address
 142          * as a string for the user, it may be fiddled with for oper spoofing etc.
 143          */
 144         char host[HOSTLEN + 1]; /* client's hostname */
 145         char orighost[HOSTLEN + 1]; /* original hostname (before dynamic spoofing) */
 146         char sockhost[HOSTIPLEN + 1]; /* clients ip */
 147         char info[REALLEN + 1]; /* Free form additional client info */
 148
 149         char id[IDLEN]; /* UID/SID, unique on the network */
 150
 151         /* list of who has this client on their allow list, its counterpart
 152          * is in LocalUser
 153          */
 154         rb_dlink_list on_allow_list;
 155
 156         time_t first_received_message_time;
 157         int received_number_of_privmsgs;
 158         int flood_noticed;
 159
 160         struct LocalUser *localClient;
 161         struct PreClient *preClient;
 162
 163         time_t large_ctcp_sent; /* ctcp to large group sent, relax flood checks */
 164         char *certfp; /* client certificate fingerprint */
 165 };
 166
 167 struct LocalUser
 168 {
 169         rb_dlink_node tnode;    /* This is the node for the local list type the client is on */
 170         rb_dlink_list connids;  /* This is the list of connids to free */
 171
 172         /*
 173          * The following fields are allocated only for local clients
 174          * (directly connected to *this* server with a socket.
 175          */
 176         /* Anti flooding part, all because of lamers... */
 177         time_t last_join_time;  /* when this client last
 178                                    joined a channel */
 179         time_t last_leave_time; /* when this client last
 180                                  * left a channel */
 181         int join_leave_count;   /* count of JOIN/LEAVE in less than
 182                                    MIN_JOIN_LEAVE_TIME seconds */
 183         int oper_warn_count_down;       /* warn opers of this possible
 184                                            spambot every time this gets to 0 */
 185         time_t last_caller_id_time;
 186
 187         time_t lasttime;        /* last time we parsed something */
 188         time_t firsttime;       /* time client was created */
 189
 190         /* Send and receive linebuf queues .. */
 191         buf_head_t buf_sendq;
 192         buf_head_t buf_recvq;
 193
 194         /*
 195          * we want to use unsigned int here so the sizes have a better chance of
 196          * staying the same on 64 bit machines. The current trend is to use
 197          * I32LP64, (32 bit ints, 64 bit longs and pointers) and since ircd
 198          * will NEVER run on an operating system where ints are less than 32 bits,
 199          * it's a relatively safe bet to use ints. Since right shift operations are
 200          * performed on these, it's not safe to allow them to become negative,
 201          * which is possible for long running server connections. Unsigned values
 202          * generally overflow gracefully. --Bleep
 203          *
 204          * We have modern conveniences. Let's use uint32_t. --Elizafox
 205          */
 206         uint32_t sendM;         /* Statistics: protocol messages send */
 207         uint32_t sendK;         /* Statistics: total k-bytes send */
 208         uint32_t receiveM;      /* Statistics: protocol messages received */
 209         uint32_t receiveK;      /* Statistics: total k-bytes received */
 210         uint16_t sendB;         /* counters to count upto 1-k lots of bytes */
 211         uint16_t receiveB;      /* sent and received. */
 212         struct Listener *listener;      /* listener accepted from */
 213         struct ConfItem *att_conf;      /* attached conf */
 214         struct server_conf *att_sconf;
 215
 216         struct rb_sockaddr_storage ip;
 217         time_t last_nick_change;
 218         int number_of_nick_changes;
 219
 220         /*
 221          * XXX - there is no reason to save this, it should be checked when it's
 222          * received and not stored, this is not used after registration
 223          *
 224          * agreed. lets get rid of it someday! --nenolod
 225          */
 226         char *passwd;
 227         char *auth_user;
 228         char *opername; /* name of operator{} block being used or tried (challenge) */
 229         char *challenge;
 230         char *fullcaps;
 231         char *cipher_string;
 232
 233         int caps;               /* capabilities bit-field */
 234         rb_fde_t *F;            /* >= 0, for local clients */
 235
 236         /* time challenge response is valid for */
 237         time_t chal_time;
 238
 239         time_t next_away;       /* Don't allow next away before... */
 240         time_t last;
 241
 242         /* clients allowed to talk through +g */
 243         rb_dlink_list allow_list;
 244
 245         /* nicknames theyre monitoring */
 246         rb_dlink_list monitor_list;
 247
 248         /*
 249          * Anti-flood stuff. We track how many messages were parsed and how
 250          * many we were allowed in the current second, and apply a simple decay
 251          * to avoid flooding.
 252          *   -- adrian
 253          */
 254         int sent_parsed;        /* how many messages we've parsed in this second */
 255         time_t last_knock;      /* time of last knock */
 256         uint32_t random_ping;
 257
 258         /* target change stuff */
 259         /* targets we're aware of (fnv32(use_id(target_p))):
 260          * 0..TGCHANGE_NUM-1 regular slots
 261          * TGCHANGE_NUM..TGCHANGE_NUM+TGCHANGE_REPLY-1 reply slots
 262          */
 263         uint32_t targets[TGCHANGE_NUM + TGCHANGE_REPLY];
 264         unsigned int targets_free;      /* free targets */
 265         time_t target_last;             /* last time we cleared a slot */
 266
 267         /* ratelimit items */
 268         time_t ratelimit;
 269         unsigned int join_who_credits;
 270
 271         struct ListClient *safelist_data;
 272
 273         char *mangledhost; /* non-NULL if host mangling module loaded and
 274                               applicable to this client */
 275
 276         struct _ssl_ctl *ssl_ctl;               /* which ssl daemon we're associate with */
 277         struct _ssl_ctl *z_ctl;                 /* second ctl for ssl+zlib */
 278         struct ws_ctl *ws_ctl;                  /* ctl for wsockd */
 279         SSL_OPEN_CB *ssl_callback;              /* ssl connection is now open */
 280         uint32_t localflags;
 281         struct ZipStats *zipstats;              /* zipstats */
 282         uint16_t cork_count;                    /* used for corking/uncorking connections */
 283         struct ev_entry *event;                 /* used for associated events */
 284
 285         struct PrivilegeSet *privset;           /* privset... */
 286
 287         char sasl_agent[IDLEN];
 288         unsigned char sasl_out;
 289         unsigned char sasl_complete;
 290
 291         unsigned int sasl_messages;
 292         unsigned int sasl_failures;
 293         time_t sasl_next_retry;
 294 };
 295
 296 #define AUTHC_F_DEFERRED 0x01
 297 #define AUTHC_F_COMPLETE 0x02
 298
 299 struct AuthClient
 300 {
 301         uint32_t cid;   /* authd id */
 302         time_t timeout; /* When to terminate authd query */
 303         bool accepted;  /* did authd accept us? */
 304         char cause;     /* rejection cause */
 305         char *data;     /* reason data */
 306         char *reason;   /* reason we were rejected */
 307         int flags;
 308 };
 309
 310 struct PreClient
 311 {
 312         char spoofnick[NICKLEN + 1];
 313         char spoofuser[USERLEN + 1];
 314         char spoofhost[HOSTLEN + 1];
 315
 316         struct AuthClient auth;
 317
 318         struct rb_sockaddr_storage lip; /* address of our side of the connection */
 319
 320         char id[IDLEN]; /* UID/SID, unique on the network (unverified) */
 321 };
 322
 323 struct ListClient
 324 {
 325         char *chname;
 326         unsigned int users_min, users_max;
 327         time_t created_min, created_max, topic_min, topic_max;
 328         int operspy;
 329 };
 330
 331 /*
 332  * status macros.
 333  */
 334 #define STAT_CONNECTING         0x01
 335 #define STAT_HANDSHAKE          0x02
 336 #define STAT_ME                 0x04
 337 #define STAT_UNKNOWN            0x08
 338 #define STAT_REJECT             0x10
 339 #define STAT_SERVER             0x20
 340 #define STAT_CLIENT             0x40
 341
 342
 343 #define IsRegisteredUser(x)     ((x)->status == STAT_CLIENT)
 344 #define IsRegistered(x)         (((x)->status  > STAT_UNKNOWN) && ((x)->status != STAT_REJECT))
 345 #define IsConnecting(x)         ((x)->status == STAT_CONNECTING)
 346 #define IsHandshake(x)          ((x)->status == STAT_HANDSHAKE)
 347 #define IsMe(x)                 ((x)->status == STAT_ME)
 348 #define IsUnknown(x)            ((x)->status == STAT_UNKNOWN)
 349 #define IsServer(x)             ((x)->status == STAT_SERVER)
 350 #define IsClient(x)             ((x)->status == STAT_CLIENT)
 351 #define IsReject(x)             ((x)->status == STAT_REJECT)
 352
 353 #define IsAnyServer(x)          (IsServer(x) || IsHandshake(x) || IsConnecting(x))
 354
 355 #define IsOper(x)               ((x)->umodes & UMODE_OPER)
 356 #define IsAdmin(x)              ((x)->umodes & UMODE_ADMIN)
 357
 358 #define SetReject(x)            {(x)->status = STAT_REJECT; \
 359                                  (x)->handler = UNREGISTERED_HANDLER; }
 360
 361 #define SetConnecting(x)        {(x)->status = STAT_CONNECTING; \
 362                                  (x)->handler = UNREGISTERED_HANDLER; }
 363
 364 #define SetHandshake(x)         {(x)->status = STAT_HANDSHAKE; \
 365                                  (x)->handler = UNREGISTERED_HANDLER; }
 366
 367 #define SetMe(x)                {(x)->status = STAT_ME; \
 368                                  (x)->handler = UNREGISTERED_HANDLER; }
 369
 370 #define SetUnknown(x)           {(x)->status = STAT_UNKNOWN; \
 371                                  (x)->handler = UNREGISTERED_HANDLER; }
 372
 373 #define SetServer(x)            {(x)->status = STAT_SERVER; \
 374                                  (x)->handler = SERVER_HANDLER; }
 375
 376 #define SetClient(x)            {(x)->status = STAT_CLIENT; \
 377                                  (x)->handler = IsOper((x)) ? \
 378                                         OPER_HANDLER : CLIENT_HANDLER; }
 379 #define SetRemoteClient(x)      {(x)->status = STAT_CLIENT; \
 380                                  (x)->handler = RCLIENT_HANDLER; }
 381
 382 #define STAT_CLIENT_PARSE (STAT_UNKNOWN | STAT_CLIENT)
 383 #define STAT_SERVER_PARSE (STAT_CONNECTING | STAT_HANDSHAKE | STAT_SERVER)
 384
 385 #define PARSE_AS_CLIENT(x)      ((x)->status & STAT_CLIENT_PARSE)
 386 #define PARSE_AS_SERVER(x)      ((x)->status & STAT_SERVER_PARSE)
 387
 388
 389 /*
 390  * ts stuff
 391  */
 392 #define TS_CURRENT      6
 393 #define TS_MIN          6
 394
 395 #define TS_DOESTS       0x10000000
 396 #define DoesTS(x)       ((x)->tsinfo & TS_DOESTS)
 397
 398 #define has_id(source)  ((source)->id[0] != '\0')
 399 #define use_id(source)  ((source)->id[0] != '\0' ? (source)->id : (source)->name)
 400
 401 /* if target is TS6, use id if it has one, else name */
 402 #define get_id(source, target) ((IsServer(target->from) && has_id(target->from)) ? \
 403                                 use_id(source) : (source)->name)
 404
 405 /* housekeeping flags */
 406
 407 #define FLAGS_PINGSENT          0x00000001      /* Unreplied ping sent */
 408 #define FLAGS_DEAD              0x00000002      /* Local socket is dead--Exiting soon */
 409 #define FLAGS_KILLED            0x00000004      /* Prevents "QUIT" from being sent for this */
 410 #define FLAGS_SENTUSER          0x00000008      /* Client sent a USER command. */
 411 #define FLAGS_CLICAP            0x00000010      /* In CAP negotiation, wait for CAP END */
 412 #define FLAGS_CLOSING           0x00000020      /* set when closing to suppress errors */
 413 #define FLAGS_PING_COOKIE       0x00000040      /* has sent ping cookie */
 414 #define FLAGS_GOTID             0x00000080      /* successful ident lookup achieved */
 415 #define FLAGS_FLOODDONE         0x00000100      /* flood grace period over / reported */
 416 #define FLAGS_NORMALEX          0x00000200      /* Client exited normally */
 417 #define FLAGS_MARK              0x00000400      /* marked client */
 418 #define FLAGS_HIDDEN            0x00000800      /* hidden server */
 419 #define FLAGS_EOB               0x00001000      /* EOB */
 420 #define FLAGS_MYCONNECT         0x00002000      /* MyConnect */
 421 #define FLAGS_IOERROR           0x00004000      /* IO error */
 422 #define FLAGS_SERVICE           0x00008000      /* network service */
 423 #define FLAGS_TGCHANGE          0x00010000      /* we're allowed to clear something */
 424 #define FLAGS_DYNSPOOF          0x00020000      /* dynamic spoof, only opers see ip */
 425 #define FLAGS_TGEXCESSIVE       0x00040000      /* whether the client has attemped to change targets excessively fast */
 426 #define FLAGS_CLICAP_DATA       0x00080000      /* requested CAP LS 302 */
 427 #define FLAGS_EXTENDCHANS       0x00100000
 428 #define FLAGS_EXEMPTRESV        0x00200000
 429 #define FLAGS_EXEMPTKLINE       0x00400000
 430 #define FLAGS_EXEMPTFLOOD       0x00800000
 431 #define FLAGS_IP_SPOOFING       0x01000000
 432 #define FLAGS_EXEMPTSPAMBOT     0x02000000
 433 #define FLAGS_EXEMPTSHIDE       0x04000000
 434 #define FLAGS_EXEMPTJUPE        0x08000000
 435
 436
 437 /* flags for local clients, this needs stuff moved from above to here at some point */
 438 #define LFLAGS_SSL              0x00000001
 439 #define LFLAGS_FLUSH            0x00000002
 440 #define LFLAGS_CORK             0x00000004
 441 #define LFLAGS_SCTP             0x00000008
 442
 443 /* umodes, settable flags */
 444 /* lots of this moved to snomask -- jilles */
 445 #define UMODE_SERVNOTICE   0x0001       /* server notices */
 446 #define UMODE_WALLOP       0x0002       /* send wallops to them */
 447 #define UMODE_OPERWALL     0x0004       /* Operwalls */
 448 #define UMODE_INVISIBLE    0x0008       /* makes user invisible */
 449 #define UMODE_CALLERID     0x0010       /* block unless caller id's */
 450 #define UMODE_LOCOPS       0x0020       /* show locops */
 451 #define UMODE_SERVICE      0x0040
 452 #define UMODE_DEAF         0x0080
 453 #define UMODE_NOFORWARD    0x0100       /* don't forward */
 454 #define UMODE_REGONLYMSG   0x0200       /* only allow logged in users to msg */
 455
 456 /* user information flags, only settable by remote mode or local oper */
 457 #define UMODE_OPER         0x1000       /* Operator */
 458 #define UMODE_ADMIN        0x2000       /* Admin on server */
 459 #define UMODE_SSLCLIENT    0x4000       /* using SSL */
 460
 461 #define DEFAULT_OPER_UMODES (UMODE_SERVNOTICE | UMODE_OPERWALL | \
 462                              UMODE_WALLOP | UMODE_LOCOPS)
 463 #define DEFAULT_OPER_SNOMASK SNO_GENERAL
 464
 465 /*
 466  * flags macros.
 467  */
 468 #define IsPerson(x)             (IsClient(x) && (x)->user != NULL)
 469 #define HasServlink(x)          ((x)->flags &  FLAGS_SERVLINK)
 470 #define SetServlink(x)          ((x)->flags |= FLAGS_SERVLINK)
 471 #define MyConnect(x)            ((x)->flags & FLAGS_MYCONNECT)
 472 #define SetMyConnect(x)         ((x)->flags |= FLAGS_MYCONNECT)
 473 #define ClearMyConnect(x)       ((x)->flags &= ~FLAGS_MYCONNECT)
 474
 475 #define MyClient(x)             (MyConnect(x) && IsClient(x))
 476 #define SetMark(x)              ((x)->flags |= FLAGS_MARK)
 477 #define ClearMark(x)            ((x)->flags &= ~FLAGS_MARK)
 478 #define IsMarked(x)             ((x)->flags & FLAGS_MARK)
 479 #define SetHidden(x)            ((x)->flags |= FLAGS_HIDDEN)
 480 #define ClearHidden(x)          ((x)->flags &= ~FLAGS_HIDDEN)
 481 #define IsHidden(x)             ((x)->flags & FLAGS_HIDDEN)
 482 #define ClearEob(x)             ((x)->flags &= ~FLAGS_EOB)
 483 #define SetEob(x)               ((x)->flags |= FLAGS_EOB)
 484 #define HasSentEob(x)           ((x)->flags & FLAGS_EOB)
 485 #define IsDead(x)               ((x)->flags &  FLAGS_DEAD)
 486 #define SetDead(x)              ((x)->flags |= FLAGS_DEAD)
 487 #define IsClosing(x)            ((x)->flags & FLAGS_CLOSING)
 488 #define SetClosing(x)           ((x)->flags |= FLAGS_CLOSING)
 489 #define IsIOError(x)            ((x)->flags & FLAGS_IOERROR)
 490 #define SetIOError(x)           ((x)->flags |= FLAGS_IOERROR)
 491 #define IsAnyDead(x)            (IsIOError(x) || IsDead(x) || IsClosing(x))
 492 #define IsTGChange(x)           ((x)->flags & FLAGS_TGCHANGE)
 493 #define SetTGChange(x)          ((x)->flags |= FLAGS_TGCHANGE)
 494 #define ClearTGChange(x)        ((x)->flags &= ~FLAGS_TGCHANGE)
 495 #define IsDynSpoof(x)           ((x)->flags & FLAGS_DYNSPOOF)
 496 #define SetDynSpoof(x)          ((x)->flags |= FLAGS_DYNSPOOF)
 497 #define ClearDynSpoof(x)        ((x)->flags &= ~FLAGS_DYNSPOOF)
 498 #define IsTGExcessive(x)        ((x)->flags & FLAGS_TGEXCESSIVE)
 499 #define SetTGExcessive(x)       ((x)->flags |= FLAGS_TGEXCESSIVE)
 500 #define ClearTGExcessive(x)     ((x)->flags &= ~FLAGS_TGEXCESSIVE)
 501
 502 /* local flags */
 503
 504 #define IsSSL(x)                ((x)->localClient->localflags & LFLAGS_SSL)
 505 #define SetSSL(x)               ((x)->localClient->localflags |= LFLAGS_SSL)
 506 #define ClearSSL(x)             ((x)->localClient->localflags &= ~LFLAGS_SSL)
 507
 508 #define IsFlush(x)              ((x)->localClient->localflags & LFLAGS_FLUSH)
 509 #define SetFlush(x)             ((x)->localClient->localflags |= LFLAGS_FLUSH)
 510 #define ClearFlush(x)           ((x)->localClient->localflags &= ~LFLAGS_FLUSH)
 511
 512 #define IsSCTP(x)               ((x)->localClient->localflags & LFLAGS_SCTP)
 513 #define SetSCTP(x)              ((x)->localClient->localflags |= LFLAGS_SCTP)
 514 #define ClearSCTP(x)            ((x)->localClient->localflags &= ~LFLAGS_SCTP)
 515
 516 /* oper flags */
 517 #define MyOper(x)               (MyConnect(x) && IsOper(x))
 518
 519 #define SetOper(x)              {(x)->umodes |= UMODE_OPER; \
 520                                  if (MyClient((x))) (x)->handler = OPER_HANDLER;}
 521
 522 #define ClearOper(x)            {(x)->umodes &= ~(UMODE_OPER|UMODE_ADMIN); \
 523                                  if (MyClient((x)) && !IsOper((x)) && !IsServer((x))) \
 524                                   (x)->handler = CLIENT_HANDLER; }
 525
 526 /* umode flags */
 527 #define IsInvisible(x)          ((x)->umodes & UMODE_INVISIBLE)
 528 #define SetInvisible(x)         ((x)->umodes |= UMODE_INVISIBLE)
 529 #define ClearInvisible(x)       ((x)->umodes &= ~UMODE_INVISIBLE)
 530 #define IsSSLClient(x)          ((x)->umodes & UMODE_SSLCLIENT)
 531 #define SetSSLClient(x)         ((x)->umodes |= UMODE_SSLCLIENT)
 532 #define ClearSSLClient(x)       ((x)->umodes &= ~UMODE_SSLCLIENT)
 533 #define SendWallops(x)          ((x)->umodes & UMODE_WALLOP)
 534 #define SendLocops(x)           ((x)->umodes & UMODE_LOCOPS)
 535 #define SendServNotice(x)       ((x)->umodes & UMODE_SERVNOTICE)
 536 #define SendOperwall(x)         ((x)->umodes & UMODE_OPERWALL)
 537 #define IsSetCallerId(x)        ((x)->umodes & UMODE_CALLERID)
 538 #define IsService(x)            ((x)->umodes & UMODE_SERVICE)
 539 #define IsDeaf(x)               ((x)->umodes & UMODE_DEAF)
 540 #define IsNoForward(x)          ((x)->umodes & UMODE_NOFORWARD)
 541 #define IsSetRegOnlyMsg(x)      ((x)->umodes & UMODE_REGONLYMSG)
 542
 543 #define SetGotId(x)             ((x)->flags |= FLAGS_GOTID)
 544 #define IsGotId(x)              (((x)->flags & FLAGS_GOTID) != 0)
 545
 546 #define IsExemptKline(x)        ((x)->flags & FLAGS_EXEMPTKLINE)
 547 #define SetExemptKline(x)       ((x)->flags |= FLAGS_EXEMPTKLINE)
 548 #define IsExemptFlood(x)        ((x)->flags & FLAGS_EXEMPTFLOOD)
 549 #define SetExemptFlood(x)       ((x)->flags |= FLAGS_EXEMPTFLOOD)
 550 #define IsExemptSpambot(x)      ((x)->flags & FLAGS_EXEMPTSPAMBOT)
 551 #define SetExemptSpambot(x)     ((x)->flags |= FLAGS_EXEMPTSPAMBOT)
 552 #define IsExemptShide(x)        ((x)->flags & FLAGS_EXEMPTSHIDE)
 553 #define SetExemptShide(x)       ((x)->flags |= FLAGS_EXEMPTSHIDE)
 554 #define IsExemptJupe(x)         ((x)->flags & FLAGS_EXEMPTJUPE)
 555 #define SetExemptJupe(x)        ((x)->flags |= FLAGS_EXEMPTJUPE)
 556 #define IsExemptResv(x)         ((x)->flags & FLAGS_EXEMPTRESV)
 557 #define SetExemptResv(x)        ((x)->flags |= FLAGS_EXEMPTRESV)
 558 #define IsIPSpoof(x)            ((x)->flags & FLAGS_IP_SPOOFING)
 559 #define SetIPSpoof(x)           ((x)->flags |= FLAGS_IP_SPOOFING)
 560 #define IsExtendChans(x)        ((x)->flags & FLAGS_EXTENDCHANS)
 561 #define SetExtendChans(x)       ((x)->flags |= FLAGS_EXTENDCHANS)
 562
 563 /* for local users: flood grace period is over
 564  * for servers: mentioned in networknotice.c notice
 565  */
 566 #define IsFloodDone(x)          ((x)->flags & FLAGS_FLOODDONE)
 567 #define SetFloodDone(x)         ((x)->flags |= FLAGS_FLOODDONE)
 568
 569 /* These also operate on the uplink from which it came */
 570 #define IsCork(x)               (MyConnect(x) ? (x)->localClient->cork_count : (x)->from->localClient->cork_count)
 571 #define SetCork(x)              (MyConnect(x) ? (x)->localClient->cork_count++ : (x)->from->localClient->cork_count++ )
 572 #define ClearCork(x)            (MyConnect(x) ? (x)->localClient->cork_count-- : (x)->from->localClient->cork_count--)
 573
 574 /*
 575  * definitions for get_client_name
 576  */
 577 #define HIDE_IP 0
 578 #define SHOW_IP 1
 579 #define MASK_IP 2
 580
 581 enum
 582 {
 583         D_LINED,
 584         K_LINED
 585 };
 586
 587 extern void check_banned_lines(void);
 588 extern void check_klines(void);
 589 extern void check_one_kline(struct ConfItem *kline);
 590 extern void check_dlines(void);
 591 extern void check_xlines(void);
 592 extern void resv_nick_fnc(const char *mask, const char *reason, int temp_time);
 593
 594 extern const char *get_client_name(struct Client *client, int show_ip);
 595 extern const char *log_client_name(struct Client *, int);
 596 extern int is_remote_connect(struct Client *);
 597 extern void init_client(void);
 598 extern struct Client *make_client(struct Client *from);
 599 extern void free_pre_client(struct Client *client);
 600
 601 extern void notify_banned_client(struct Client *, struct ConfItem *, int ban);
 602 extern int exit_client(struct Client *, struct Client *, struct Client *, const char *);
 603
 604 extern void error_exit_client(struct Client *, int);
 605
 606 extern void count_local_client_memory(size_t * count, size_t * memory);
 607 extern void count_remote_client_memory(size_t * count, size_t * memory);
 608
 609 extern int clean_nick(const char *, int loc_client);
 610
 611 extern struct Client *find_chasing(struct Client *, const char *, int *);
 612 extern struct Client *find_person(const char *);
 613 extern struct Client *find_named_person(const char *);
 614 extern struct Client *next_client(struct Client *, const char *);
 615
 616 #define accept_message(s, t) ((s) == (t) || (rb_dlinkFind((s), &((t)->localClient->allow_list))))
 617 extern void del_all_accepts(struct Client *client_p);
 618
 619 extern void dead_link(struct Client *client_p, int sendqex);
 620 extern int show_ip(struct Client *source_p, struct Client *target_p);
 621 extern int show_ip_conf(struct ConfItem *aconf, struct Client *source_p);
 622 extern int show_ip_whowas(struct Whowas *whowas, struct Client *source_p);
 623
 624 extern void free_user(struct User *, struct Client *);
 625 extern struct User *make_user(struct Client *);
 626 extern struct Server *make_server(struct Client *);
 627 extern void close_connection(struct Client *);
 628 extern void init_uid(void);
 629 extern char *generate_uid(void);
 630
 631 void allocate_away(struct Client *);
 632 void free_away(struct Client *);
 633
 634 uint32_t connid_get(struct Client *client_p);
 635 void connid_put(uint32_t id);
 636 void client_release_connids(struct Client *client_p);
 637
 638 #endif /* INCLUDED_client_h */