src/protos.h

   1 /*
   2  * SQUID Web Proxy Cache          http://www.squid-cache.org/
   3  * ----------------------------------------------------------
   4  *
   5  *  Squid is the result of efforts by numerous individuals from
   6  *  the Internet community; see the CONTRIBUTORS file for full
   7  *  details.   Many organizations have provided support for Squid's
   8  *  development; see the SPONSORS file for full details.  Squid is
   9  *  Copyrighted (C) 2001 by the Regents of the University of
  10  *  California; see the COPYRIGHT file for full details.  Squid
  11  *  incorporates software developed and/or copyrighted by other
  12  *  sources; see the CREDITS file for full details.
  13  *
  14  *  This program is free software; you can redistribute it and/or modify
  15  *  it under the terms of the GNU General Public License as published by
  16  *  the Free Software Foundation; either version 2 of the License, or
  17  *  (at your option) any later version.
  18  *
  19  *  This program is distributed in the hope that it will be useful,
  20  *  but WITHOUT ANY WARRANTY; without even the implied warranty of
  21  *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  22  *  GNU General Public License for more details.
  23  *
  24  *  You should have received a copy of the GNU General Public License
  25  *  along with this program; if not, write to the Free Software
  26  *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA.
  27  *
  28  */
  29 #ifndef SQUID_PROTOS_H
  30 #define SQUID_PROTOS_H
  31
  32 /* included for routines that have not moved out to their proper homes
  33  * yet.
  34  */
  35 #include "Packer.h"
  36 /* for routines still in this file that take CacheManager parameters */
  37 #include "ip/Address.h"
  38 /* for parameters that still need these */
  39 #include "enums.h"
  40 /* some parameters stil need this */
  41 #include "wordlist.h"
  42
  43 /* for parameters that still need these */
  44 #include "lookup_t.h"
  45
  46
  47 class HttpRequestMethod;
  48 #if USE_DELAY_POOLS
  49 class ClientInfo;
  50 #endif
  51
  52
  53 #if USE_FORW_VIA_DB
  54 SQUIDCEXTERN void fvdbCountVia(const char *key);
  55 SQUIDCEXTERN void fvdbCountForw(const char *key);
  56 #endif
  57 #if HEADERS_LOG
  58 SQUIDCEXTERN void headersLog(int cs, int pq, const HttpRequestMethod& m, void *data);
  59 #endif
  60 SQUIDCEXTERN int logTypeIsATcpHit(log_type);
  61
  62 /*
  63  * cache_cf.c
  64  */
  65 SQUIDCEXTERN void configFreeMemory(void);
  66 class MemBuf;
  67 SQUIDCEXTERN void wordlistCat(const wordlist *, MemBuf * mb);
  68 SQUIDCEXTERN void self_destruct(void);
  69 SQUIDCEXTERN void add_http_port(char *portspec);
  70 extern int xatoi(const char *token);
  71 extern long xatol(const char *token);
  72
  73
  74 /* extra functions from cache_cf.c useful for lib modules */
  75 SQUIDCEXTERN void parse_int(int *var);
  76 SQUIDCEXTERN void parse_onoff(int *var);
  77 SQUIDCEXTERN void parse_eol(char *volatile *var);
  78 SQUIDCEXTERN void parse_wordlist(wordlist ** list);
  79 SQUIDCEXTERN void requirePathnameExists(const char *name, const char *path);
  80 SQUIDCEXTERN void parse_time_t(time_t * var);
  81
  82
  83 /* client_side.c - FD related client side routines */
  84
  85 SQUIDCEXTERN void clientdbInit(void);
  86
  87 #include "anyp/ProtocolType.h"
  88 SQUIDCEXTERN void clientdbUpdate(const Ip::Address &, log_type, AnyP::ProtocolType, size_t);
  89
  90 SQUIDCEXTERN int clientdbCutoffDenied(const Ip::Address &);
  91 void clientdbDump(StoreEntry *);
  92 SQUIDCEXTERN void clientdbFreeMemory(void);
  93
  94 SQUIDCEXTERN int clientdbEstablished(const Ip::Address &, int);
  95 #if USE_DELAY_POOLS
  96 SQUIDCEXTERN void clientdbSetWriteLimiter(ClientInfo * info, const int writeSpeedLimit,const double initialBurst,const double highWatermark);
  97 SQUIDCEXTERN ClientInfo * clientdbGetInfo(const Ip::Address &addr);
  98 #endif
  99 SQUIDCEXTERN void clientOpenListenSockets(void);
 100 SQUIDCEXTERN void clientHttpConnectionsClose(void);
 101 SQUIDCEXTERN void httpRequestFree(void *);
 102
 103 extern void clientAccessCheck(void *);
 104
 105 #include "Debug.h"
 106
 107 /* packs, then prints an object using debugs() */
 108 SQUIDCEXTERN void debugObj(int section, int level, const char *label, void *obj, ObjPackMethod pm);
 109
 110 /* disk.c */
 111 SQUIDCEXTERN int file_open(const char *path, int mode);
 112 SQUIDCEXTERN void file_close(int fd);
 113 /* Adapter file_write for object callbacks */
 114
 115 template <class O>
 116 void
 117 FreeObject(void *address)
 118 {
 119     O *anObject = static_cast <O *>(address);
 120     delete anObject;
 121 }
 122
 123 SQUIDCEXTERN void file_write(int, off_t, void const *, int len, DWCB *, void *, FREE *);
 124 SQUIDCEXTERN void file_write_mbuf(int fd, off_t, MemBuf mb, DWCB * handler, void *handler_data);
 125 SQUIDCEXTERN void file_read(int, char *, int, off_t, DRCB *, void *);
 126 SQUIDCEXTERN void disk_init(void);
 127
 128 SQUIDCEXTERN void fd_close(int fd);
 129 SQUIDCEXTERN void fd_open(int fd, unsigned int type, const char *);
 130 SQUIDCEXTERN void fd_note(int fd, const char *);
 131 SQUIDCEXTERN void fd_bytes(int fd, int len, unsigned int type);
 132 SQUIDCEXTERN void fdDumpOpen(void);
 133 SQUIDCEXTERN int fdUsageHigh(void);
 134 SQUIDCEXTERN void fdAdjustReserved(void);
 135
 136 SQUIDCEXTERN void fqdncache_nbgethostbyaddr(const Ip::Address &, FQDNH *, void *);
 137
 138 SQUIDCEXTERN const char *fqdncache_gethostbyaddr(const Ip::Address &, int flags);
 139 SQUIDCEXTERN void fqdncache_init(void);
 140 void fqdnStats(StoreEntry *);
 141 SQUIDCEXTERN void fqdncacheReleaseInvalid(const char *);
 142
 143 SQUIDCEXTERN const char *fqdnFromAddr(const Ip::Address &);
 144 SQUIDCEXTERN int fqdncacheQueueDrain(void);
 145 SQUIDCEXTERN void fqdncacheFreeMemory(void);
 146 SQUIDCEXTERN void fqdncache_restart(void);
 147 void fqdncache_purgelru(void *);
 148 SQUIDCEXTERN void fqdncacheAddEntryFromHosts(char *addr, wordlist * hostnames);
 149
 150 class FwdState;
 151
 152 /**
 153  \defgroup ServerProtocolFTPAPI Server-Side FTP API
 154  \ingroup ServerProtocol
 155  */
 156
 157 /// \ingroup ServerProtocolFTPAPI
 158 SQUIDCEXTERN void ftpStart(FwdState *);
 159
 160 class HttpRequest;
 161 class HttpReply;
 162
 163 /// \ingroup ServerProtocolFTPAPI
 164 SQUIDCEXTERN const char *ftpUrlWith2f(HttpRequest *);
 165
 166
 167 /**
 168  \defgroup ServerProtocolGopherAPI Server-Side Gopher API
 169  \ingroup ServerProtocol
 170  */
 171
 172 /// \ingroup ServerProtocolGopherAPI
 173 SQUIDCEXTERN void gopherStart(FwdState *);
 174
 175 /// \ingroup ServerProtocolGopherAPI
 176 SQUIDCEXTERN int gopherCachable(const HttpRequest *);
 177
 178
 179 /**
 180  \defgroup ServerProtocolWhoisAPI Server-Side WHOIS API
 181  \ingroup ServerProtocol
 182  */
 183
 184 /// \ingroup ServerProtocolWhoisAPI
 185 SQUIDCEXTERN void whoisStart(FwdState *);
 186
 187
 188 /* http.c */
 189 /* for http_hdr_type field */
 190 #include "HttpHeader.h"
 191 SQUIDCEXTERN int httpCachable(const HttpRequestMethod&);
 192 SQUIDCEXTERN void httpStart(FwdState *);
 193 SQUIDCEXTERN mb_size_t httpBuildRequestPrefix(HttpRequest * request,
 194         HttpRequest * orig_request,
 195         StoreEntry * entry,
 196         MemBuf * mb,
 197         http_state_flags);
 198 SQUIDCEXTERN const char *httpMakeVaryMark(HttpRequest * request, HttpReply const * reply);
 199
 200 #include "HttpStatusCode.h"
 201 SQUIDCEXTERN const char *httpStatusString(http_status status);
 202
 203 class StatHist;
 204
 205 /* Http Cache Control Header Field */
 206 SQUIDCEXTERN void httpHdrCcInitModule(void);
 207 SQUIDCEXTERN void httpHdrCcCleanModule(void);
 208 SQUIDCEXTERN void httpHdrCcUpdateStats(const HttpHdrCc * cc, StatHist * hist);
 209 void httpHdrCcStatDumper(StoreEntry * sentry, int idx, double val, double size, int count);
 210
 211 /* Http Header Tools */
 212 class HttpHeaderFieldInfo;
 213 SQUIDCEXTERN HttpHeaderFieldInfo *httpHeaderBuildFieldsInfo(const HttpHeaderFieldAttrs * attrs, int count);
 214 SQUIDCEXTERN void httpHeaderDestroyFieldsInfo(HttpHeaderFieldInfo * info, int count);
 215 SQUIDCEXTERN http_hdr_type httpHeaderIdByName(const char *name, size_t name_len, const HttpHeaderFieldInfo * attrs, int end);
 216 SQUIDCEXTERN http_hdr_type httpHeaderIdByNameDef(const char *name, int name_len);
 217 SQUIDCEXTERN const char *httpHeaderNameById(int id);
 218 SQUIDCEXTERN int httpHeaderHasConnDir(const HttpHeader * hdr, const char *directive);
 219 SQUIDCEXTERN void strListAdd(String * str, const char *item, char del);
 220 SQUIDCEXTERN int strListIsMember(const String * str, const char *item, char del);
 221 SQUIDCEXTERN int strListIsSubstr(const String * list, const char *s, char del);
 222 SQUIDCEXTERN int strListGetItem(const String * str, char del, const char **item, int *ilen, const char **pos);
 223 SQUIDCEXTERN const char *getStringPrefix(const char *str, const char *end);
 224 SQUIDCEXTERN int httpHeaderParseInt(const char *start, int *val);
 225 SQUIDCEXTERN int httpHeaderParseOffset(const char *start, int64_t * off);
 226 SQUIDCEXTERN void
 227 httpHeaderPutStrf(HttpHeader * hdr, http_hdr_type id, const char *fmt,...) PRINTF_FORMAT_ARG3;
 228
 229
 230 /* Http Header */
 231 SQUIDCEXTERN void httpHeaderInitModule(void);
 232 SQUIDCEXTERN void httpHeaderCleanModule(void);
 233
 234 /* store report about current header usage and other stats */
 235 void httpHeaderStoreReport(StoreEntry * e);
 236 SQUIDCEXTERN void httpHdrMangleList(HttpHeader *, HttpRequest *, int req_or_rep);
 237
 238 #if SQUID_SNMP
 239 SQUIDCEXTERN PF snmpHandleUdp;
 240 SQUIDCEXTERN void snmpInit(void);
 241 SQUIDCEXTERN void snmpOpenPorts(void);
 242 SQUIDCEXTERN void snmpClosePorts(void);
 243 SQUIDCEXTERN const char * snmpDebugOid(oid * Name, snint Len, MemBuf &outbuf);
 244
 245 SQUIDCEXTERN void addr2oid(Ip::Address &addr, oid *Dest);
 246 SQUIDCEXTERN void oid2addr(oid *Dest, Ip::Address &addr, u_int code);
 247
 248 SQUIDCEXTERN Ip::Address *client_entry(Ip::Address *current);
 249 extern variable_list *snmp_basicFn(variable_list *, snint *);
 250 extern variable_list *snmp_confFn(variable_list *, snint *);
 251 extern variable_list *snmp_sysFn(variable_list *, snint *);
 252 extern variable_list *snmp_prfSysFn(variable_list *, snint *);
 253 extern variable_list *snmp_prfProtoFn(variable_list *, snint *);
 254 extern variable_list *snmp_prfPeerFn(variable_list *, snint *);
 255 extern variable_list *snmp_netIpFn(variable_list *, snint *);
 256 extern variable_list *snmp_netFqdnFn(variable_list *, snint *);
 257 extern variable_list *snmp_netDnsFn(variable_list *, snint *);
 258 extern variable_list *snmp_meshPtblFn(variable_list *, snint *);
 259 extern variable_list *snmp_meshCtblFn(variable_list *, snint *);
 260 #endif /* SQUID_SNMP */
 261
 262 #if USE_WCCP
 263 SQUIDCEXTERN void wccpInit(void);
 264 SQUIDCEXTERN void wccpConnectionOpen(void);
 265 SQUIDCEXTERN void wccpConnectionClose(void);
 266 #endif /* USE_WCCP */
 267
 268 #if USE_WCCPv2
 269 extern void wccp2Init(void);
 270 extern void wccp2ConnectionOpen(void);
 271 extern void wccp2ConnectionClose(void);
 272 #endif /* USE_WCCPv2 */
 273
 274 SQUIDCEXTERN char *mime_get_header(const char *mime, const char *header);
 275 SQUIDCEXTERN char *mime_get_header_field(const char *mime, const char *name, const char *prefix);
 276 SQUIDCEXTERN size_t headersEnd(const char *, size_t);
 277
 278 SQUIDCEXTERN void mimeInit(char *filename);
 279 SQUIDCEXTERN void mimeFreeMemory(void);
 280 SQUIDCEXTERN char *mimeGetContentEncoding(const char *fn);
 281 SQUIDCEXTERN char *mimeGetContentType(const char *fn);
 282 SQUIDCEXTERN char const *mimeGetIcon(const char *fn);
 283 SQUIDCEXTERN const char *mimeGetIconURL(const char *fn);
 284 SQUIDCEXTERN char mimeGetTransferMode(const char *fn);
 285 SQUIDCEXTERN int mimeGetDownloadOption(const char *fn);
 286 SQUIDCEXTERN int mimeGetViewOption(const char *fn);
 287
 288 #include "ipcache.h"
 289 SQUIDCEXTERN int mcastSetTtl(int, int);
 290 SQUIDCEXTERN IPH mcastJoinGroups;
 291
 292 SQUIDCEXTERN peer *getFirstPeer(void);
 293 SQUIDCEXTERN peer *getFirstUpParent(HttpRequest *);
 294 SQUIDCEXTERN peer *getNextPeer(peer *);
 295 SQUIDCEXTERN peer *getSingleParent(HttpRequest *);
 296 SQUIDCEXTERN int neighborsCount(HttpRequest *);
 297 SQUIDCEXTERN int neighborsUdpPing(HttpRequest *,
 298                                   StoreEntry *,
 299                                   IRCB * callback,
 300                                   void *data,
 301                                   int *exprep,
 302                                   int *timeout);
 303 SQUIDCEXTERN void neighborAddAcl(const char *, const char *);
 304
 305 SQUIDCEXTERN void neighborsUdpAck(const cache_key *, icp_common_t *, const Ip::Address &);
 306 SQUIDCEXTERN void neighborAdd(const char *, const char *, int, int, int, int, int);
 307 SQUIDCEXTERN void neighbors_init(void);
 308 #if USE_HTCP
 309 SQUIDCEXTERN void neighborsHtcpClear(StoreEntry *, const char *, HttpRequest *, const HttpRequestMethod &, htcp_clr_reason);
 310 #endif
 311 SQUIDCEXTERN peer *peerFindByName(const char *);
 312 SQUIDCEXTERN peer *peerFindByNameAndPort(const char *, unsigned short);
 313 SQUIDCEXTERN peer *getDefaultParent(HttpRequest * request);
 314 SQUIDCEXTERN peer *getRoundRobinParent(HttpRequest * request);
 315 SQUIDCEXTERN peer *getWeightedRoundRobinParent(HttpRequest * request);
 316 SQUIDCEXTERN void peerClearRRStart(void);
 317 SQUIDCEXTERN void peerClearRR(void);
 318 SQUIDCEXTERN lookup_t peerDigestLookup(peer * p, HttpRequest * request);
 319 SQUIDCEXTERN peer *neighborsDigestSelect(HttpRequest * request);
 320 SQUIDCEXTERN void peerNoteDigestLookup(HttpRequest * request, peer * p, lookup_t lookup);
 321 SQUIDCEXTERN void peerNoteDigestGone(peer * p);
 322 SQUIDCEXTERN int neighborUp(const peer * e);
 323 SQUIDCEXTERN CBDUNL peerDestroy;
 324 SQUIDCEXTERN const char *neighborTypeStr(const peer * e);
 325 SQUIDCEXTERN peer_t neighborType(const peer *, const HttpRequest *);
 326 SQUIDCEXTERN void peerConnectFailed(peer *);
 327 SQUIDCEXTERN void peerConnectSucceded(peer *);
 328 SQUIDCEXTERN void dump_peer_options(StoreEntry *, peer *);
 329 SQUIDCEXTERN int peerHTTPOkay(const peer *, HttpRequest *);
 330
 331 SQUIDCEXTERN peer *whichPeer(const Ip::Address &from);
 332
 333 /* peer_digest.c */
 334 class PeerDigest;
 335 SQUIDCEXTERN PeerDigest *peerDigestCreate(peer * p);
 336 SQUIDCEXTERN void peerDigestNeeded(PeerDigest * pd);
 337 SQUIDCEXTERN void peerDigestNotePeerGone(PeerDigest * pd);
 338 SQUIDCEXTERN void peerDigestStatsReport(const PeerDigest * pd, StoreEntry * e);
 339
 340 #include "comm/forward.h"
 341 extern void getOutgoingAddress(HttpRequest * request, Comm::ConnectionPointer conn);
 342 extern Ip::Address getOutgoingAddr(HttpRequest * request, struct peer *dst_peer);
 343
 344 SQUIDCEXTERN void urnStart(HttpRequest *, StoreEntry *);
 345
 346 SQUIDCEXTERN void redirectInit(void);
 347 SQUIDCEXTERN void redirectShutdown(void);
 348
 349 extern void refreshAddToList(const char *, int, time_t, int, time_t);
 350 extern int refreshIsCachable(const StoreEntry *);
 351 extern int refreshCheckHTTP(const StoreEntry *, HttpRequest *);
 352 extern int refreshCheckICP(const StoreEntry *, HttpRequest *);
 353 extern int refreshCheckHTCP(const StoreEntry *, HttpRequest *);
 354 extern int refreshCheckDigest(const StoreEntry *, time_t delta);
 355 extern time_t getMaxAge(const char *url);
 356 extern void refreshInit(void);
 357 extern const refresh_t *refreshLimits(const char *url);
 358
 359 extern void shut_down(int);
 360 extern void rotate_logs(int);
 361 extern void reconfigure(int);
 362
 363
 364 extern void start_announce(void *unused);
 365 extern void waisStart(FwdState *);
 366
 367 SQUIDCEXTERN void statInit(void);
 368 SQUIDCEXTERN void statFreeMemory(void);
 369 SQUIDCEXTERN double median_svc_get(int, int);
 370 SQUIDCEXTERN void pconnHistCount(int, int);
 371 SQUIDCEXTERN int stat5minClientRequests(void);
 372 SQUIDCEXTERN double stat5minCPUUsage(void);
 373 SQUIDCEXTERN double statRequestHitRatio(int minutes);
 374 SQUIDCEXTERN double statRequestHitMemoryRatio(int minutes);
 375 SQUIDCEXTERN double statRequestHitDiskRatio(int minutes);
 376 SQUIDCEXTERN double statByteHitRatio(int minutes);
 377
 378 /* mem */
 379 SQUIDCEXTERN void memClean(void);
 380 SQUIDCEXTERN void memInitModule(void);
 381 SQUIDCEXTERN void memCleanModule(void);
 382 SQUIDCEXTERN void memConfigure(void);
 383 SQUIDCEXTERN void *memAllocate(mem_type);
 384 SQUIDCEXTERN void *memAllocString(size_t net_size, size_t * gross_size);
 385 SQUIDCEXTERN void *memAllocBuf(size_t net_size, size_t * gross_size);
 386 SQUIDCEXTERN void *memReallocBuf(void *buf, size_t net_size, size_t * gross_size);
 387 SQUIDCEXTERN void memFree(void *, int type);
 388 void memFree2K(void *);
 389 void memFree4K(void *);
 390 void memFree8K(void *);
 391 void memFree16K(void *);
 392 void memFree32K(void *);
 393 void memFree64K(void *);
 394 SQUIDCEXTERN void memFreeString(size_t size, void *);
 395 SQUIDCEXTERN void memFreeBuf(size_t size, void *);
 396 SQUIDCEXTERN FREE *memFreeBufFunc(size_t size);
 397 SQUIDCEXTERN int memInUse(mem_type);
 398 SQUIDCEXTERN void memDataInit(mem_type, const char *, size_t, int, bool zeroOnPush = true);
 399 SQUIDCEXTERN void memCheckInit(void);
 400
 401
 402 /* Mem */
 403 SQUIDCEXTERN void memConfigure(void);
 404
 405 /* ----------------------------------------------------------------- */
 406
 407 /* repl_modules.c */
 408 SQUIDCEXTERN void storeReplSetup(void);
 409
 410 /*
 411  * store_log.c
 412  */
 413 SQUIDCEXTERN void storeLog(int tag, const StoreEntry * e);
 414 SQUIDCEXTERN void storeLogRotate(void);
 415 SQUIDCEXTERN void storeLogClose(void);
 416 SQUIDCEXTERN void storeLogOpen(void);
 417
 418
 419 /*
 420  * store_key_*.c
 421  */
 422 SQUIDCEXTERN cache_key *storeKeyDup(const cache_key *);
 423 SQUIDCEXTERN cache_key *storeKeyCopy(cache_key *, const cache_key *);
 424 SQUIDCEXTERN void storeKeyFree(const cache_key *);
 425 SQUIDCEXTERN const cache_key *storeKeyScan(const char *);
 426 SQUIDCEXTERN const char *storeKeyText(const cache_key *);
 427 SQUIDCEXTERN const cache_key *storeKeyPublic(const char *, const HttpRequestMethod&);
 428 SQUIDCEXTERN const cache_key *storeKeyPublicByRequest(HttpRequest *);
 429 SQUIDCEXTERN const cache_key *storeKeyPublicByRequestMethod(HttpRequest *, const HttpRequestMethod&);
 430 SQUIDCEXTERN const cache_key *storeKeyPrivate(const char *, const HttpRequestMethod&, int);
 431 SQUIDCEXTERN int storeKeyHashBuckets(int);
 432 SQUIDCEXTERN int storeKeyNull(const cache_key *);
 433 SQUIDCEXTERN void storeKeyInit(void);
 434 SQUIDCEXTERN HASHHASH storeKeyHashHash;
 435 SQUIDCEXTERN HASHCMP storeKeyHashCmp;
 436
 437 /*
 438  * store_digest.c
 439  */
 440 SQUIDCEXTERN void storeDigestInit(void);
 441 SQUIDCEXTERN void storeDigestNoteStoreReady(void);
 442 SQUIDCEXTERN void storeDigestScheduleRebuild(void);
 443 SQUIDCEXTERN void storeDigestDel(const StoreEntry * entry);
 444 extern void storeDigestReport(StoreEntry *);
 445
 446 /*
 447  * store_rebuild.c
 448  */
 449 SQUIDCEXTERN void storeRebuildStart(void);
 450
 451 SQUIDCEXTERN void storeRebuildComplete(struct _store_rebuild_data *);
 452 SQUIDCEXTERN void storeRebuildProgress(int sd_index, int total, int sofar);
 453
 454 /// loads entry from disk; fills supplied memory buffer on success
 455 bool storeRebuildLoadEntry(int fd, int diskIndex, MemBuf &buf, struct _store_rebuild_data &counts);
 456 /// parses entry buffer and validates entry metadata; fills e on success
 457 bool storeRebuildParseEntry(MemBuf &buf, StoreEntry &e, cache_key *key, struct _store_rebuild_data &counts, uint64_t expectedSize);
 458 /// checks whether the loaded entry should be kept; updates counters
 459 bool storeRebuildKeepEntry(const StoreEntry &e, const cache_key *key, struct _store_rebuild_data &counts);
 460
 461
 462 /*
 463  * store_swapin.c
 464  */
 465 class store_client;
 466 SQUIDCEXTERN void storeSwapInStart(store_client *);
 467
 468 /*
 469  * store_client.c
 470  */
 471 SQUIDCEXTERN store_client *storeClientListAdd(StoreEntry * e, void *data);
 472 SQUIDCEXTERN int storeClientCopyPending(store_client *, StoreEntry * e, void *data);
 473 SQUIDCEXTERN int storeUnregister(store_client * sc, StoreEntry * e, void *data)
 474 ;
 475 SQUIDCEXTERN int storePendingNClients(const StoreEntry * e);
 476 SQUIDCEXTERN int storeClientIsThisAClient(store_client * sc, void *someClient);
 477
 478
 479 SQUIDCEXTERN const char *getMyHostname(void);
 480 SQUIDCEXTERN const char *uniqueHostname(void);
 481 SQUIDCEXTERN void safeunlink(const char *path, int quiet);
 482
 483 #include "fatal.h"
 484 void death(int sig);
 485 void sigusr2_handle(int sig);
 486 void sig_child(int sig);
 487 void sig_shutdown(int sig); ///< handles shutdown notifications from kids
 488 SQUIDCEXTERN void leave_suid(void);
 489 SQUIDCEXTERN void enter_suid(void);
 490 SQUIDCEXTERN void no_suid(void);
 491 SQUIDCEXTERN void writePidFile(void);
 492 SQUIDCEXTERN void setSocketShutdownLifetimes(int);
 493 SQUIDCEXTERN void setMaxFD(void);
 494 SQUIDCEXTERN void setSystemLimits(void);
 495 extern void squid_signal(int sig, SIGHDLR *, int flags);
 496 SQUIDCEXTERN pid_t readPidFile(void);
 497 SQUIDCEXTERN void keepCapabilities(void);
 498 SQUIDCEXTERN void BroadcastSignalIfAny(int& sig);
 499 /// whether the current process is the parent of all other Squid processes
 500 SQUIDCEXTERN bool IamMasterProcess();
 501 /**
 502     whether the current process is dedicated to doing things that only
 503     a single process should do, such as PID file maintenance and WCCP
 504 */
 505 SQUIDCEXTERN bool IamPrimaryProcess();
 506 /// whether the current process coordinates worker processes
 507 SQUIDCEXTERN bool IamCoordinatorProcess();
 508 /// whether the current process handles HTTP transactions and such
 509 SQUIDCEXTERN bool IamWorkerProcess();
 510 /// whether the current process is dedicated to managing a cache_dir
 511 bool IamDiskProcess();
 512 /// Whether we are running in daemon mode
 513 SQUIDCEXTERN bool InDaemonMode(); // try using specific Iam*() checks above first
 514 /// Whether there should be more than one worker process running
 515 SQUIDCEXTERN bool UsingSmp(); // try using specific Iam*() checks above first
 516 /// number of Kid processes as defined in src/ipc/Kid.h
 517 SQUIDCEXTERN int NumberOfKids();
 518 /// a string describing this process roles such as worker or coordinator
 519 String ProcessRoles();
 520 SQUIDCEXTERN int DebugSignal;
 521
 522 /* AYJ debugs function to show locations being reset with memset() */
 523 SQUIDCEXTERN void *xmemset(void *dst, int, size_t);
 524
 525 SQUIDCEXTERN void debug_trap(const char *);
 526 SQUIDCEXTERN void logsFlush(void);
 527 SQUIDCEXTERN const char *checkNullString(const char *p);
 528
 529 SQUIDCEXTERN void squid_getrusage(struct rusage *r);
 530
 531 SQUIDCEXTERN double rusage_cputime(struct rusage *r);
 532
 533 SQUIDCEXTERN int rusage_maxrss(struct rusage *r);
 534
 535 SQUIDCEXTERN int rusage_pagefaults(struct rusage *r);
 536 SQUIDCEXTERN void releaseServerSockets(void);
 537 SQUIDCEXTERN void PrintRusage(void);
 538 SQUIDCEXTERN void dumpMallocStats(void);
 539
 540 #if USE_UNLINKD
 541 SQUIDCEXTERN bool unlinkdNeeded(void);
 542 SQUIDCEXTERN void unlinkdInit(void);
 543 SQUIDCEXTERN void unlinkdClose(void);
 544 SQUIDCEXTERN void unlinkdUnlink(const char *);
 545 #endif
 546
 547 SQUIDCEXTERN AnyP::ProtocolType urlParseProtocol(const char *, const char *e = NULL);
 548 SQUIDCEXTERN void urlInitialize(void);
 549 SQUIDCEXTERN HttpRequest *urlParse(const HttpRequestMethod&, char *, HttpRequest *request = NULL);
 550 SQUIDCEXTERN const char *urlCanonical(HttpRequest *);
 551 SQUIDCEXTERN char *urlCanonicalClean(const HttpRequest *);
 552 SQUIDCEXTERN const char *urlCanonicalFakeHttps(const HttpRequest * request);
 553 SQUIDCEXTERN bool urlIsRelative(const char *);
 554 SQUIDCEXTERN char *urlMakeAbsolute(const HttpRequest *, const char *);
 555 SQUIDCEXTERN char *urlRInternal(const char *host, unsigned short port, const char *dir, const char *name);
 556 SQUIDCEXTERN char *urlInternal(const char *dir, const char *name);
 557 SQUIDCEXTERN int matchDomainName(const char *host, const char *domain);
 558 SQUIDCEXTERN int urlCheckRequest(const HttpRequest *);
 559 SQUIDCEXTERN int urlDefaultPort(AnyP::ProtocolType p);
 560 SQUIDCEXTERN char *urlHostname(const char *url);
 561 SQUIDCEXTERN void urlExtMethodConfigure(void);
 562
 563 SQUIDCEXTERN peer_t parseNeighborType(const char *s);
 564
 565 /* tools.c */
 566 //UNUSED        #include "dlink.h"
 567 //UNUSED        SQUIDCEXTERN void dlinkAdd(void *data, dlink_node *, dlink_list *);
 568 //UNUSED        SQUIDCEXTERN void dlinkAddAfter(void *, dlink_node *, dlink_node *, dlink_list *);
 569 //UNUSED        SQUIDCEXTERN void dlinkAddTail(void *data, dlink_node *, dlink_list *);
 570 //UNUSED        SQUIDCEXTERN void dlinkDelete(dlink_node * m, dlink_list * list);
 571 //UNUSED        SQUIDCEXTERN void dlinkNodeDelete(dlink_node * m);
 572 //UNUSED        SQUIDCEXTERN dlink_node *dlinkNodeNew(void);
 573
 574 SQUIDCEXTERN void kb_incr(kb_t *, size_t);
 575 SQUIDCEXTERN int stringHasWhitespace(const char *);
 576 SQUIDCEXTERN int stringHasCntl(const char *);
 577 SQUIDCEXTERN void linklistPush(link_list **, void *);
 578 SQUIDCEXTERN void *linklistShift(link_list **);
 579 SQUIDCEXTERN int xrename(const char *from, const char *to);
 580 SQUIDCEXTERN int isPowTen(int);
 581 SQUIDCEXTERN void parseEtcHosts(void);
 582 SQUIDCEXTERN int getMyPort(void);
 583 SQUIDCEXTERN void setUmask(mode_t mask);
 584
 585 SQUIDCEXTERN char *strwordtok(char *buf, char **t);
 586 SQUIDCEXTERN void strwordquote(MemBuf * mb, const char *str);
 587
 588
 589 /*
 590  * ipc.c
 591  */
 592 SQUIDCEXTERN pid_t ipcCreate(int type,
 593                              const char *prog,
 594                              const char *const args[],
 595                              const char *name,
 596                              Ip::Address &local_addr,
 597                              int *rfd,
 598                              int *wfd,
 599                              void **hIpc);
 600
 601 class CacheDigestGuessStats;
 602 /* CacheDigest */
 603 SQUIDCEXTERN CacheDigest *cacheDigestCreate(int capacity, int bpe);
 604 SQUIDCEXTERN void cacheDigestDestroy(CacheDigest * cd);
 605 SQUIDCEXTERN CacheDigest *cacheDigestClone(const CacheDigest * cd);
 606 SQUIDCEXTERN void cacheDigestClear(CacheDigest * cd);
 607 SQUIDCEXTERN void cacheDigestChangeCap(CacheDigest * cd, int new_cap);
 608 SQUIDCEXTERN int cacheDigestTest(const CacheDigest * cd, const cache_key * key);
 609 SQUIDCEXTERN void cacheDigestAdd(CacheDigest * cd, const cache_key * key);
 610 SQUIDCEXTERN void cacheDigestDel(CacheDigest * cd, const cache_key * key);
 611 SQUIDCEXTERN size_t cacheDigestCalcMaskSize(int cap, int bpe);
 612 SQUIDCEXTERN int cacheDigestBitUtil(const CacheDigest * cd);
 613 SQUIDCEXTERN void cacheDigestGuessStatsUpdate(CacheDigestGuessStats * stats, int real_hit, int guess_hit);
 614 SQUIDCEXTERN void cacheDigestGuessStatsReport(const CacheDigestGuessStats * stats, StoreEntry * sentry, const char *label);
 615 SQUIDCEXTERN void cacheDigestReport(CacheDigest * cd, const char *label, StoreEntry * e);
 616
 617 SQUIDCEXTERN void internalStart(const Comm::ConnectionPointer &clientConn, HttpRequest *, StoreEntry *);
 618 SQUIDCEXTERN int internalCheck(const char *urlpath);
 619 SQUIDCEXTERN int internalStaticCheck(const char *urlpath);
 620 SQUIDCEXTERN char *internalLocalUri(const char *dir, const char *name);
 621 SQUIDCEXTERN char *internalRemoteUri(const char *, unsigned short, const char *, const char *);
 622 SQUIDCEXTERN const char *internalHostname(void);
 623 SQUIDCEXTERN int internalHostnameIs(const char *);
 624
 625 SQUIDCEXTERN void carpInit(void);
 626 SQUIDCEXTERN peer *carpSelectParent(HttpRequest *);
 627
 628 SQUIDCEXTERN void peerUserHashInit(void);
 629 SQUIDCEXTERN peer * peerUserHashSelectParent(HttpRequest * request);
 630
 631 SQUIDCEXTERN void peerSourceHashInit(void);
 632 SQUIDCEXTERN peer * peerSourceHashSelectParent(HttpRequest * request);
 633
 634 #if USE_LEAKFINDER
 635 SQUIDCEXTERN void leakInit(void);
 636 SQUIDCEXTERN void *leakAddFL(void *, const char *, int);
 637 SQUIDCEXTERN void *leakTouchFL(void *, const char *, int);
 638 SQUIDCEXTERN void *leakFreeFL(void *, const char *, int);
 639 #endif
 640
 641 /*
 642  * prototypes for system functions missing from system includes
 643  */
 644
 645 #if _SQUID_SOLARIS_
 646
 647 SQUIDCEXTERN int getrusage(int, struct rusage *);
 648 SQUIDCEXTERN int getpagesize(void);
 649 #if !defined(_XPG4_2) && !(defined(__EXTENSIONS__) || \
 650 (!defined(_POSIX_C_SOURCE) && !defined(_XOPEN_SOURCE)))
 651 SQUIDCEXTERN int gethostname(char *, int);
 652 #endif
 653 #endif
 654
 655 /*
 656  * hack to allow snmp access to the statistics counters
 657  */
 658 class StatCounters;
 659         SQUIDCEXTERN StatCounters *snmpStatGet(int);
 660
 661         /* Vary support functions */
 662         SQUIDCEXTERN int varyEvaluateMatch(StoreEntry * entry, HttpRequest * req);
 663
 664         /* CygWin & Windows NT Port */
 665         /* win32.c */
 666 #if _SQUID_WINDOWS_
 667         SQUIDCEXTERN int WIN32_Subsystem_Init(int *, char ***);
 668         SQUIDCEXTERN void WIN32_sendSignal(int);
 669         SQUIDCEXTERN void WIN32_Abort(int);
 670         SQUIDCEXTERN void WIN32_Exit(void);
 671         SQUIDCEXTERN void WIN32_SetServiceCommandLine(void);
 672         SQUIDCEXTERN void WIN32_InstallService(void);
 673         SQUIDCEXTERN void WIN32_RemoveService(void);
 674         SQUIDCEXTERN int SquidMain(int, char **);
 675 #endif /* _SQUID_WINDOWS_ */
 676 #if _SQUID_MSWIN_
 677
 678         SQUIDCEXTERN int WIN32_pipe(int[2]);
 679
 680             SQUIDCEXTERN int WIN32_getrusage(int, struct rusage *);
 681     SQUIDCEXTERN void WIN32_ExceptionHandlerInit(void);
 682
 683     SQUIDCEXTERN int Win32__WSAFDIsSet(int fd, fd_set* set);
 684     SQUIDCEXTERN DWORD WIN32_IpAddrChangeMonitorInit();
 685
 686 #endif
 687
 688     /* external_acl.c */
 689     class external_acl;
 690             SQUIDCEXTERN void parse_externalAclHelper(external_acl **);
 691
 692             SQUIDCEXTERN void dump_externalAclHelper(StoreEntry * sentry, const char *name, const external_acl *);
 693
 694             SQUIDCEXTERN void free_externalAclHelper(external_acl **);
 695
 696             typedef void EAH(void *data, void *result);
 697             class ACLChecklist;
 698                 SQUIDCEXTERN void externalAclLookup(ACLChecklist * ch, void *acl_data, EAH * handler, void *data);
 699
 700                 SQUIDCEXTERN void externalAclInit(void);
 701
 702                 SQUIDCEXTERN void externalAclShutdown(void);
 703
 704                 SQUIDCEXTERN char *strtokFile(void);
 705
 706 #if USE_WCCPv2
 707
 708                 SQUIDCEXTERN void parse_wccp2_method(int *v);
 709                 SQUIDCEXTERN void free_wccp2_method(int *v);
 710                 SQUIDCEXTERN void dump_wccp2_method(StoreEntry * e, const char *label, int v);
 711                 SQUIDCEXTERN void parse_wccp2_amethod(int *v);
 712                 SQUIDCEXTERN void free_wccp2_amethod(int *v);
 713                 SQUIDCEXTERN void dump_wccp2_amethod(StoreEntry * e, const char *label, int v);
 714
 715                 SQUIDCEXTERN void parse_wccp2_service(void *v);
 716                 SQUIDCEXTERN void free_wccp2_service(void *v);
 717                 SQUIDCEXTERN void dump_wccp2_service(StoreEntry * e, const char *label, void *v);
 718
 719                 SQUIDCEXTERN int check_null_wccp2_service(void *v);
 720
 721                 SQUIDCEXTERN void parse_wccp2_service_info(void *v);
 722
 723                 SQUIDCEXTERN void free_wccp2_service_info(void *v);
 724
 725                 SQUIDCEXTERN void dump_wccp2_service_info(StoreEntry * e, const char *label, void *v);
 726
 727 #endif
 728
 729 #if USE_AUTH
 730
 731 #if HAVE_AUTH_MODULE_NEGOTIATE && HAVE_KRB5 && HAVE_GSSAPI
 732                 /* upstream proxy authentication */
 733                 SQUIDCEXTERN char *peer_proxy_negotiate_auth(char *principal_name, char *proxy);
 734 #endif
 735
 736                     namespace Auth {
 737             /* call to ensure the auth component schemes exist. */
 738             extern void Init(void);
 739             } // namespace Auth
 740
 741 #endif /* USE_AUTH */
 742
 743 #endif /* SQUID_PROTOS_H */