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a8258824 | 1 | |
9cef6668 | 2 | /* |
4fe0e1d0 | 3 | * $Id: structs.h,v 1.324 2000/05/02 20:39:28 hno Exp $ |
9cef6668 | 4 | * |
5 | * | |
6 | * SQUID Internet Object Cache http://squid.nlanr.net/Squid/ | |
7 | * ---------------------------------------------------------- | |
8 | * | |
9 | * Squid is the result of efforts by numerous individuals from the | |
10 | * Internet community. Development is led by Duane Wessels of the | |
11 | * National Laboratory for Applied Network Research and funded by the | |
12 | * National Science Foundation. Squid is Copyrighted (C) 1998 by | |
efd900cb | 13 | * the Regents of the University of California. Please see the |
14 | * COPYRIGHT file for full details. Squid incorporates software | |
15 | * developed and/or copyrighted by other sources. Please see the | |
16 | * CREDITS file for full details. | |
9cef6668 | 17 | * |
18 | * This program is free software; you can redistribute it and/or modify | |
19 | * it under the terms of the GNU General Public License as published by | |
20 | * the Free Software Foundation; either version 2 of the License, or | |
21 | * (at your option) any later version. | |
22 | * | |
23 | * This program is distributed in the hope that it will be useful, | |
24 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
25 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
26 | * GNU General Public License for more details. | |
27 | * | |
28 | * You should have received a copy of the GNU General Public License | |
29 | * along with this program; if not, write to the Free Software | |
30 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. | |
31 | * | |
32 | */ | |
33 | ||
0f1bc304 | 34 | struct _dlink_node { |
35 | void *data; | |
36 | dlink_node *prev; | |
37 | dlink_node *next; | |
38 | }; | |
39 | ||
40 | struct _dlink_list { | |
41 | dlink_node *head; | |
42 | dlink_node *tail; | |
43 | }; | |
44 | ||
a8258824 | 45 | struct _acl_ip_data { |
46 | struct in_addr addr1; /* if addr2 non-zero then its a range */ | |
47 | struct in_addr addr2; | |
48 | struct in_addr mask; | |
1a106e18 | 49 | acl_ip_data *next; /* used for parsing, not for storing */ |
a8258824 | 50 | }; |
51 | ||
43d4303e | 52 | struct _acl_snmp_comm { |
53 | char *name; | |
54 | void *community; | |
55 | acl_snmp_comm *next; | |
56 | }; | |
57 | ||
a8258824 | 58 | struct _acl_time_data { |
59 | int weekbits; | |
60 | int start; | |
61 | int stop; | |
74fbf3c9 | 62 | acl_time_data *next; |
a8258824 | 63 | }; |
64 | ||
65 | struct _acl_name_list { | |
66 | char name[ACL_NAME_SZ]; | |
74fbf3c9 | 67 | acl_name_list *next; |
a8258824 | 68 | }; |
69 | ||
ec878047 | 70 | struct _acl_proxy_auth_user { |
71 | /* first two items must be same as hash_link */ | |
72 | char *user; | |
73 | acl_proxy_auth_user *next; | |
73e67ee0 | 74 | /* extra fields for proxy_auth */ |
ec878047 | 75 | char *passwd; |
73e67ee0 | 76 | int passwd_ok; /* 1 = passwd checked OK */ |
77 | long expiretime; | |
9bc73deb | 78 | struct in_addr ipaddr; /* IP addr this user authenticated from */ |
79 | time_t ip_expiretime; | |
ec878047 | 80 | }; |
81 | ||
a8258824 | 82 | struct _acl_deny_info_list { |
02922e76 | 83 | int err_page_id; |
84 | char *err_page_name; | |
74fbf3c9 | 85 | acl_name_list *acl_list; |
86 | acl_deny_info_list *next; | |
a8258824 | 87 | }; |
88 | ||
66c75c41 | 89 | #if USE_ARP_ACL |
cbe3a719 | 90 | |
66c75c41 | 91 | struct _acl_arp_data { |
74b7003b | 92 | char eth[6]; |
66c75c41 | 93 | }; |
cbe3a719 | 94 | |
66c75c41 | 95 | #endif |
96 | ||
02922e76 | 97 | struct _String { |
98 | /* never reference these directly! */ | |
a369131d | 99 | unsigned short int size; /* buffer size; 64K limit */ |
100 | unsigned short int len; /* current length */ | |
02922e76 | 101 | char *buf; |
102 | }; | |
103 | ||
1df370e3 | 104 | #if SQUID_SNMP |
43d4303e | 105 | |
a9ddb359 | 106 | struct _snmp_request_t { |
5e29a294 | 107 | u_char *buf; |
108 | u_char *outbuf; | |
2ac76861 | 109 | int len; |
110 | int sock; | |
111 | long reqid; | |
112 | int outlen; | |
113 | struct sockaddr_in from; | |
114 | struct snmp_pdu *PDU; | |
115 | aclCheck_t *acl_checklist; | |
5e29a294 | 116 | u_char *community; |
a9ddb359 | 117 | }; |
bdf18524 | 118 | |
1df370e3 | 119 | #endif |
a97cfa48 | 120 | |
a8258824 | 121 | struct _acl { |
122 | char name[ACL_NAME_SZ]; | |
123 | squid_acl type; | |
124 | void *data; | |
125 | char *cfgline; | |
bd05e3e3 | 126 | acl *next; |
a8258824 | 127 | }; |
128 | ||
129 | struct _acl_list { | |
130 | int op; | |
bd05e3e3 | 131 | acl *acl; |
132 | acl_list *next; | |
a8258824 | 133 | }; |
134 | ||
135 | struct _acl_access { | |
136 | int allow; | |
bd05e3e3 | 137 | acl_list *acl_list; |
a8258824 | 138 | char *cfgline; |
bd05e3e3 | 139 | acl_access *next; |
a8258824 | 140 | }; |
141 | ||
142 | struct _aclCheck_t { | |
bd05e3e3 | 143 | const acl_access *access_list; |
a8258824 | 144 | struct in_addr src_addr; |
145 | struct in_addr dst_addr; | |
ae2c08a2 | 146 | struct in_addr my_addr; |
7e3ce7b9 | 147 | unsigned short my_port; |
a8258824 | 148 | request_t *request; |
3898f57f | 149 | #if USE_IDENT |
150 | ConnStateData *conn; /* hack for ident */ | |
def67559 | 151 | char ident[USER_IDENT_SZ]; |
3898f57f | 152 | #endif |
73e67ee0 | 153 | acl_proxy_auth_user *auth_user; |
a8258824 | 154 | acl_lookup_state state[ACL_ENUM_MAX]; |
dba79ac5 | 155 | #if SQUID_SNMP |
156 | char *snmp_community; | |
157 | #endif | |
a8258824 | 158 | PF *callback; |
159 | void *callback_data; | |
160 | }; | |
161 | ||
162 | struct _aio_result_t { | |
163 | int aio_return; | |
164 | int aio_errno; | |
165 | }; | |
166 | ||
167 | struct _wordlist { | |
168 | char *key; | |
bd05e3e3 | 169 | wordlist *next; |
a8258824 | 170 | }; |
171 | ||
172 | struct _intlist { | |
173 | int i; | |
bd05e3e3 | 174 | intlist *next; |
a8258824 | 175 | }; |
176 | ||
8f663d72 | 177 | struct _intrange { |
178 | int i; | |
179 | int j; | |
180 | intrange *next; | |
181 | }; | |
182 | ||
a8258824 | 183 | struct _ushortlist { |
184 | u_short i; | |
bd05e3e3 | 185 | ushortlist *next; |
a8258824 | 186 | }; |
187 | ||
188 | struct _relist { | |
189 | char *pattern; | |
190 | regex_t regex; | |
bd05e3e3 | 191 | relist *next; |
a8258824 | 192 | }; |
193 | ||
7e3ce7b9 | 194 | struct _sockaddr_in_list { |
195 | struct sockaddr_in s; | |
196 | sockaddr_in_list *next; | |
197 | }; | |
198 | ||
56e64999 | 199 | #if DELAY_POOLS |
59715b38 | 200 | struct _delaySpec { |
95e36d02 | 201 | int restore_bps; |
202 | int max_bytes; | |
203 | }; | |
1dfa1d81 | 204 | |
59715b38 | 205 | /* malloc()'d only as far as used (class * sizeof(delaySpec)! |
206 | * order of elements very important! | |
207 | */ | |
208 | struct _delaySpecSet { | |
209 | delaySpec aggregate; | |
210 | delaySpec individual; | |
211 | delaySpec network; | |
212 | }; | |
213 | ||
214 | struct _delayConfig { | |
215 | unsigned short pools; | |
216 | unsigned short initial; | |
217 | unsigned char *class; | |
218 | delaySpecSet **rates; | |
219 | acl_access **access; | |
220 | }; | |
221 | ||
56e64999 | 222 | #endif |
95e36d02 | 223 | |
a8258824 | 224 | struct _SquidConfig { |
225 | struct { | |
9906e724 | 226 | size_t maxSize; |
a8258824 | 227 | int highWaterMark; |
228 | int lowWaterMark; | |
43a70238 | 229 | } Swap; |
230 | size_t memMaxSize; | |
a8258824 | 231 | struct { |
232 | char *relayHost; | |
233 | u_short relayPort; | |
db1cd23c | 234 | peer *peer; |
a8258824 | 235 | } Wais; |
236 | struct { | |
9906e724 | 237 | size_t min; |
a8258824 | 238 | int pct; |
9906e724 | 239 | size_t max; |
a8258824 | 240 | } quickAbort; |
2b906e48 | 241 | #if HEAP_REPLACEMENT |
242 | char *replPolicy; | |
243 | #else | |
244 | /* | |
245 | * Note: the non-LRU policies do not use referenceAge, but we cannot | |
246 | * remove it until we find out how to implement #else for cf_parser.c | |
247 | */ | |
248 | #endif | |
a8258824 | 249 | time_t referenceAge; |
250 | time_t negativeTtl; | |
251 | time_t negativeDnsTtl; | |
252 | time_t positiveDnsTtl; | |
253 | time_t shutdownLifetime; | |
a8258824 | 254 | struct { |
255 | time_t read; | |
a8258824 | 256 | time_t lifetime; |
257 | time_t connect; | |
3f62decd | 258 | time_t peer_connect; |
a8258824 | 259 | time_t request; |
603a02fd | 260 | time_t pconn; |
23d92c64 | 261 | time_t siteSelect; |
dc835977 | 262 | time_t deadPeer; |
98829f69 | 263 | int icp_query; /* msec */ |
28993292 | 264 | int icp_query_max; /* msec */ |
98829f69 | 265 | int mcast_icp_query; /* msec */ |
3898f57f | 266 | #if USE_IDENT |
05832ae1 | 267 | time_t ident; |
4fe0e1d0 | 268 | #endif |
269 | #if !USE_DNSSERVERS | |
270 | time_t idns_retransmit; | |
271 | time_t idns_query; | |
3898f57f | 272 | #endif |
a8258824 | 273 | } Timeout; |
0483b991 | 274 | size_t maxRequestHeaderSize; |
275 | size_t maxRequestBodySize; | |
276 | size_t maxReplyBodySize; | |
a8258824 | 277 | struct { |
a8258824 | 278 | u_short icp; |
ace287ee | 279 | #if USE_HTCP |
280 | u_short htcp; | |
281 | #endif | |
1df370e3 | 282 | #if SQUID_SNMP |
678c6099 | 283 | u_short snmp; |
1df370e3 | 284 | #endif |
a8258824 | 285 | } Port; |
7e3ce7b9 | 286 | struct { |
287 | sockaddr_in_list *http; | |
288 | } Sockaddr; | |
1df370e3 | 289 | #if SQUID_SNMP |
2bbd722b | 290 | struct { |
291 | char *configFile; | |
292 | char *agentInfo; | |
2ac237e2 | 293 | } Snmp; |
320e9f36 | 294 | #endif |
eb824054 | 295 | #if USE_WCCP |
320e9f36 | 296 | struct { |
297 | struct in_addr router; | |
eb824054 | 298 | struct in_addr incoming; |
299 | struct in_addr outgoing; | |
320e9f36 | 300 | } Wccp; |
1df370e3 | 301 | #endif |
53ad48e6 | 302 | char *as_whois_server; |
a8258824 | 303 | struct { |
304 | char *log; | |
305 | char *access; | |
306 | char *store; | |
307 | char *swap; | |
308 | char *useragent; | |
309 | int rotateNumber; | |
a8258824 | 310 | } Log; |
a8258824 | 311 | char *adminEmail; |
312 | char *effectiveUser; | |
313 | char *effectiveGroup; | |
314 | struct { | |
efd900cb | 315 | #if USE_DNSSERVER |
a8258824 | 316 | char *dnsserver; |
efd900cb | 317 | #endif |
c6d5b87b | 318 | wordlist *redirect; |
f703eacb | 319 | wordlist *authenticate; |
a8258824 | 320 | char *pinger; |
321 | char *unlinkd; | |
322 | } Program; | |
efd900cb | 323 | #if USE_DNSSERVER |
a8258824 | 324 | int dnsChildren; |
efd900cb | 325 | #endif |
a8258824 | 326 | int redirectChildren; |
73e67ee0 | 327 | int authenticateChildren; |
c68e9c6b | 328 | int authenticateTTL; |
9bc73deb | 329 | int authenticateIpTTL; |
a8258824 | 330 | struct { |
13c7936a | 331 | int single_host; |
a8258824 | 332 | char *host; |
333 | u_short port; | |
a8258824 | 334 | } Accel; |
335 | char *appendDomain; | |
336 | size_t appendDomainLen; | |
337 | char *debugOptions; | |
338 | char *pidFilename; | |
339 | char *mimeTablePathname; | |
340 | char *visibleHostname; | |
98829f69 | 341 | char *uniqueHostname; |
1f38f50a | 342 | wordlist *hostnameAliases; |
a8258824 | 343 | char *errHtmlText; |
344 | struct { | |
345 | char *host; | |
346 | char *file; | |
347 | time_t period; | |
a8258824 | 348 | u_short port; |
349 | } Announce; | |
350 | struct { | |
a8258824 | 351 | struct in_addr tcp_outgoing; |
352 | struct in_addr udp_incoming; | |
2bbd722b | 353 | struct in_addr udp_outgoing; |
15dcc168 | 354 | #if SQUID_SNMP |
678c6099 | 355 | struct in_addr snmp_incoming; |
2bbd722b | 356 | struct in_addr snmp_outgoing; |
15dcc168 | 357 | #endif |
a8258824 | 358 | struct in_addr client_netmask; |
359 | } Addrs; | |
9906e724 | 360 | size_t tcpRcvBufsz; |
361 | size_t udpMaxHitObjsz; | |
a8258824 | 362 | wordlist *hierarchy_stoplist; |
363 | wordlist *mcast_group_list; | |
364 | wordlist *dns_testname_list; | |
09c483ec | 365 | wordlist *dns_nameservers; |
40a1495e | 366 | peer *peers; |
367 | int npeers; | |
a8258824 | 368 | struct { |
89de058c | 369 | int size; |
a8258824 | 370 | int low; |
371 | int high; | |
372 | } ipcache; | |
e55650e3 | 373 | struct { |
374 | int size; | |
375 | } fqdncache; | |
a8258824 | 376 | int minDirectHops; |
377 | cachemgr_passwd *passwd_list; | |
378 | struct { | |
379 | int objectsPerBucket; | |
9906e724 | 380 | size_t avgObjectSize; |
381 | size_t maxObjectSize; | |
a8258824 | 382 | } Store; |
383 | struct { | |
384 | int high; | |
385 | int low; | |
386 | time_t period; | |
387 | } Netdb; | |
388 | struct { | |
389 | int log_udp; | |
efd900cb | 390 | #if USE_DNSSERVER |
a8258824 | 391 | int res_defnames; |
efd900cb | 392 | #endif |
a8258824 | 393 | int anonymizer; |
394 | int client_db; | |
395 | int query_icmp; | |
88738790 | 396 | int icp_hit_stale; |
78f1250a | 397 | int buffered_logs; |
0ab965da | 398 | #if ALLOW_SOURCE_PING |
9b312a19 | 399 | int source_ping; |
0ab965da | 400 | #endif |
9b312a19 | 401 | int common_log; |
402 | int log_mime_hdrs; | |
17a0a4ee | 403 | int log_fqdn; |
404 | int announce; | |
405 | int accel_with_proxy; | |
3f6c0fb2 | 406 | int mem_pools; |
194dd3b8 | 407 | int test_reachability; |
ea285003 | 408 | int half_closed_clients; |
9f60cfdf | 409 | #if HTTP_VIOLATIONS |
465dc415 | 410 | int reload_into_ims; |
9f60cfdf | 411 | #endif |
b540e168 | 412 | int offline; |
c68e9c6b | 413 | int redir_rewrites_host; |
9b094667 | 414 | int prefer_direct; |
168dfda9 | 415 | int nonhierarchical_direct; |
bcbc11b0 | 416 | int strip_query_terms; |
07476a7f | 417 | int redirector_bypass; |
9bc73deb | 418 | int ignore_unknown_nameservers; |
efd900cb | 419 | int client_pconns; |
420 | int server_pconns; | |
7e3ce7b9 | 421 | #if USE_CACHE_DIGESTS |
422 | int digest_generation; | |
423 | #endif | |
890b0fa8 | 424 | int log_ip_on_direct; |
17a0a4ee | 425 | } onoff; |
bd05e3e3 | 426 | acl *aclList; |
a8258824 | 427 | struct { |
bd05e3e3 | 428 | acl_access *http; |
429 | acl_access *icp; | |
430 | acl_access *miss; | |
431 | acl_access *NeverDirect; | |
432 | acl_access *AlwaysDirect; | |
433 | acl_access *ASlists; | |
434 | acl_access *noCache; | |
dba79ac5 | 435 | #if SQUID_SNMP |
436 | acl_access *snmp; | |
437 | #endif | |
376bb137 | 438 | acl_access *brokenPosts; |
3898f57f | 439 | #if USE_IDENT |
a40699cd | 440 | acl_access *identLookup; |
3898f57f | 441 | #endif |
9bc73deb | 442 | acl_access *redirector; |
a8258824 | 443 | } accessList; |
bd05e3e3 | 444 | acl_deny_info_list *denyInfoList; |
f715bd3a | 445 | char *proxyAuthRealm; |
a8258824 | 446 | struct { |
447 | size_t list_width; | |
448 | int list_wrap; | |
a8258824 | 449 | char *anon_user; |
450 | } Ftp; | |
451 | refresh_t *Refresh; | |
452 | struct _cacheSwap { | |
a47b9029 | 453 | SwapDir *swapDirs; |
454 | int n_allocated; | |
455 | int n_configured; | |
a8258824 | 456 | } cacheSwap; |
88738790 | 457 | char *fake_ua; |
365cb147 | 458 | struct { |
459 | char *directory; | |
365cb147 | 460 | } icons; |
9b312a19 | 461 | char *errorDirectory; |
22c653cd | 462 | struct { |
463 | time_t timeout; | |
464 | int maxtries; | |
465 | } retry; | |
7021844c | 466 | struct { |
467 | size_t limit; | |
468 | } MemPools; | |
95e36d02 | 469 | #if DELAY_POOLS |
59715b38 | 470 | delayConfig Delay; |
95e36d02 | 471 | #endif |
6be2389e | 472 | struct { |
473 | int icp_average; | |
ef523f99 | 474 | int dns_average; |
6be2389e | 475 | int http_average; |
476 | int icp_min_poll; | |
ef523f99 | 477 | int dns_min_poll; |
6be2389e | 478 | int http_min_poll; |
479 | } comm_incoming; | |
c5f627c2 | 480 | int max_open_disk_fds; |
d548ee64 | 481 | int uri_whitespace; |
c68e9c6b | 482 | size_t rangeOffsetLimit; |
e66d7923 | 483 | #if MULTICAST_MISS_STREAM |
484 | struct { | |
485 | struct in_addr addr; | |
7e3ce7b9 | 486 | int ttl; |
e66d7923 | 487 | unsigned short port; |
488 | char *encode_key; | |
489 | } mcast_miss; | |
490 | #endif | |
5bcad01d | 491 | HttpHeaderMask anonymize_headers; |
b6a2f15e | 492 | char *coredump_dir; |
efd900cb | 493 | char *chroot_dir; |
7e3ce7b9 | 494 | #if USE_CACHE_DIGESTS |
495 | struct { | |
496 | int bits_per_entry; | |
efd900cb | 497 | time_t rebuild_period; |
498 | time_t rewrite_period; | |
499 | size_t swapout_chunk_size; | |
7e3ce7b9 | 500 | int rebuild_chunk_percentage; |
501 | } digest; | |
502 | #endif | |
708ef61c | 503 | #if USE_DISKD |
504 | struct { | |
505 | int magic1; | |
506 | int magic2; | |
507 | } diskd; | |
508 | #endif | |
a8258824 | 509 | }; |
510 | ||
511 | struct _SquidConfig2 { | |
512 | struct { | |
513 | char *prefix; | |
514 | int on; | |
515 | } Accel; | |
53cb32a9 | 516 | struct { |
517 | int enable_purge; | |
518 | } onoff; | |
a8258824 | 519 | }; |
520 | ||
521 | struct _close_handler { | |
522 | PF *handler; | |
523 | void *data; | |
524 | close_handler *next; | |
525 | }; | |
526 | ||
527 | struct _dread_ctrl { | |
528 | int fd; | |
529 | off_t offset; | |
530 | int req_len; | |
531 | char *buf; | |
532 | int end_of_file; | |
533 | DRCB *handler; | |
534 | void *client_data; | |
535 | }; | |
536 | ||
537 | struct _dnsserver_t { | |
538 | int id; | |
a8258824 | 539 | int inpipe; |
540 | int outpipe; | |
541 | time_t answer; | |
78f1250a | 542 | off_t offset; |
543 | size_t size; | |
e144eae4 | 544 | char ip_inbuf[DNS_INBUF_SZ]; |
a8258824 | 545 | struct timeval dispatch_time; |
546 | void *data; | |
547 | }; | |
548 | ||
549 | struct _dnsStatData { | |
550 | int requests; | |
551 | int replies; | |
552 | int hist[DefaultDnsChildrenMax]; | |
553 | }; | |
554 | ||
555 | struct _dwrite_q { | |
d377699f | 556 | off_t file_offset; |
a8258824 | 557 | char *buf; |
558 | int len; | |
d377699f | 559 | off_t buf_offset; |
bd05e3e3 | 560 | dwrite_q *next; |
74fbf3c9 | 561 | FREE *free_func; |
a8258824 | 562 | }; |
563 | ||
a9771e51 | 564 | |
565 | /* ETag support is rudimantal; | |
566 | * this struct is likely to change | |
567 | * Note: "str" points to memory in HttpHeaderEntry (for now) | |
568 | * so ETags should be used as tmp variables only (for now) */ | |
569 | struct _ETag { | |
98829f69 | 570 | const char *str; /* quoted-string */ |
571 | int weak; /* true if it is a weak validator */ | |
a9771e51 | 572 | }; |
573 | ||
a8258824 | 574 | struct _fde { |
575 | unsigned int type; | |
a8258824 | 576 | u_short local_port; |
577 | u_short remote_port; | |
578 | char ipaddr[16]; /* dotted decimal address of peer */ | |
579 | char desc[FD_DESC_SZ]; | |
58a6c186 | 580 | struct { |
60c0b5a2 | 581 | unsigned int open:1; |
3d94aed0 | 582 | unsigned int close_request:1; |
583 | unsigned int write_daemon:1; | |
584 | unsigned int closing:1; | |
585 | unsigned int socket_eof:1; | |
586 | unsigned int nolinger:1; | |
587 | unsigned int nonblocking:1; | |
588 | unsigned int ipc:1; | |
b5568a61 | 589 | unsigned int called_connect:1; |
58a6c186 | 590 | } flags; |
a8258824 | 591 | int bytes_read; |
592 | int bytes_written; | |
b716a8ad | 593 | int uses; /* ie # req's over persistent conn */ |
a8258824 | 594 | struct _fde_disk { |
595 | DWCB *wrt_handle; | |
596 | void *wrt_handle_data; | |
597 | dwrite_q *write_q; | |
598 | dwrite_q *write_q_tail; | |
711982d8 | 599 | off_t offset; |
a8258824 | 600 | } disk; |
601 | PF *read_handler; | |
602 | void *read_data; | |
603 | PF *write_handler; | |
604 | void *write_data; | |
605 | PF *timeout_handler; | |
606 | time_t timeout; | |
607 | void *timeout_data; | |
cb69b4c7 | 608 | void *lifetime_data; |
a8258824 | 609 | close_handler *close_handler; /* linked list */ |
da2b3a17 | 610 | DEFER *defer_check; /* check if we should defer read */ |
70a9dab4 | 611 | void *defer_data; |
a8258824 | 612 | CommWriteStateData *rwstate; /* State data for comm_write */ |
613 | }; | |
614 | ||
615 | struct _fileMap { | |
616 | int max_n_files; | |
617 | int n_files_in_map; | |
a8258824 | 618 | int toggle; |
619 | int nwords; | |
620 | unsigned long *file_map; | |
621 | }; | |
622 | ||
1d21d91d | 623 | /* auto-growing memory-resident buffer with printf interface */ |
624 | /* note: when updating this struct, update MemBufNULL #define */ | |
625 | struct _MemBuf { | |
626 | /* public, read-only */ | |
627 | char *buf; | |
628 | mb_size_t size; /* used space, does not count 0-terminator */ | |
629 | ||
630 | /* private, stay away; use interface function instead */ | |
631 | mb_size_t max_capacity; /* when grows: assert(new_capacity <= max_capacity) */ | |
632 | mb_size_t capacity; /* allocated space */ | |
633 | FREE *freefunc; /* what to use to free the buffer, NULL after memBufFreeFunc() is called */ | |
634 | }; | |
635 | ||
636 | /* see Packer.c for description */ | |
637 | struct _Packer { | |
638 | /* protected, use interface functions instead */ | |
639 | append_f append; | |
640 | vprintf_f vprintf; | |
641 | void *real_handler; /* first parameter to real append and vprintf */ | |
642 | }; | |
643 | ||
adba4a64 | 644 | /* http status line */ |
645 | struct _HttpStatusLine { | |
646 | /* public, read only */ | |
99edd1c3 | 647 | float version; |
2ac76861 | 648 | const char *reason; /* points to a _constant_ string (default or supplied), never free()d */ |
adba4a64 | 649 | http_status status; |
650 | }; | |
651 | ||
652 | /* | |
1d21d91d | 653 | * Note: HttpBody is used only for messages with a small content that is |
adba4a64 | 654 | * known a priory (e.g., error messages). |
655 | */ | |
656 | struct _HttpBody { | |
1d21d91d | 657 | /* private */ |
658 | MemBuf mb; | |
adba4a64 | 659 | }; |
660 | ||
2ecaa5e7 | 661 | /* http header extention field */ |
662 | struct _HttpHdrExtField { | |
a369131d | 663 | String name; /* field-name from HTTP/1.1 (no column after name) */ |
664 | String value; /* field-value from HTTP/1.1 */ | |
2ecaa5e7 | 665 | }; |
adba4a64 | 666 | |
399e85ea | 667 | /* http cache control header field */ |
7faf2bdb | 668 | struct _HttpHdrCc { |
4f087419 | 669 | int mask; |
d8b249ef | 670 | int max_age; |
7e3ce7b9 | 671 | int s_maxage; |
a8258824 | 672 | }; |
ee1679df | 673 | |
b5107edb | 674 | /* http byte-range-spec */ |
675 | struct _HttpHdrRangeSpec { | |
9bc73deb | 676 | ssize_t offset; |
677 | ssize_t length; | |
b5107edb | 678 | }; |
679 | ||
680 | /* There may be more than one byte range specified in the request. | |
59c4d35b | 681 | * This object holds all range specs in order of their appearence |
682 | * in the request because we SHOULD preserve that order. | |
683 | */ | |
b5107edb | 684 | struct _HttpHdrRange { |
685 | Stack specs; | |
686 | }; | |
7faf2bdb | 687 | |
d76fcfa7 | 688 | /* http content-range header field */ |
689 | struct _HttpHdrContRange { | |
690 | HttpHdrRangeSpec spec; | |
9bc73deb | 691 | ssize_t elength; /* entity length, not content length */ |
d76fcfa7 | 692 | }; |
693 | ||
a9771e51 | 694 | /* some fields can hold either time or etag specs (e.g. If-Range) */ |
695 | struct _TimeOrTag { | |
98829f69 | 696 | ETag tag; /* entity tag */ |
a9771e51 | 697 | time_t time; |
98829f69 | 698 | int valid; /* true if struct is usable */ |
a9771e51 | 699 | }; |
700 | ||
d192d11f | 701 | /* data for iterating thru range specs */ |
98829f69 | 702 | struct _HttpHdrRangeIter { |
d192d11f | 703 | HttpHdrRangePos pos; |
98829f69 | 704 | const HttpHdrRangeSpec *spec; /* current spec at pos */ |
9bc73deb | 705 | ssize_t debt_size; /* bytes left to send from the current spec */ |
706 | ssize_t prefix_size; /* the size of the incoming HTTP msg prefix */ | |
98829f69 | 707 | String boundary; /* boundary for multipart responses */ |
d192d11f | 708 | }; |
d76fcfa7 | 709 | |
fcd2d3ef | 710 | /* constant attributes of http header fields */ |
711 | struct _HttpHeaderFieldAttrs { | |
712 | const char *name; | |
713 | http_hdr_type id; | |
714 | field_type type; | |
715 | }; | |
716 | ||
7faf2bdb | 717 | /* per field statistics */ |
718 | struct _HttpHeaderFieldStat { | |
399e85ea | 719 | int aliveCount; /* created but not destroyed (count) */ |
d8b249ef | 720 | int seenCount; /* #fields we've seen */ |
399e85ea | 721 | int parsCount; /* #parsing attempts */ |
722 | int errCount; /* #pasring errors */ | |
723 | int repCount; /* #repetitons */ | |
7faf2bdb | 724 | }; |
725 | ||
d8b249ef | 726 | /* compiled version of HttpHeaderFieldAttrs plus stats */ |
de336bbe | 727 | struct _HttpHeaderFieldInfo { |
728 | http_hdr_type id; | |
729 | String name; | |
730 | field_type type; | |
7faf2bdb | 731 | HttpHeaderFieldStat stat; |
732 | }; | |
733 | ||
d8b249ef | 734 | struct _HttpHeaderEntry { |
735 | http_hdr_type id; | |
736 | String name; | |
737 | String value; | |
738 | }; | |
4f087419 | 739 | |
d8b249ef | 740 | struct _HttpHeader { |
4f087419 | 741 | /* protected, do not use these, use interface functions instead */ |
ec878047 | 742 | Array entries; /* parsed fields in raw format */ |
743 | HttpHeaderMask mask; /* bit set <=> entry present */ | |
eeb423fb | 744 | http_hdr_owner_type owner; /* request or reply */ |
745 | int len; /* length when packed, not counting terminating '\0' */ | |
4f087419 | 746 | }; |
747 | ||
adba4a64 | 748 | struct _HttpReply { |
749 | /* unsupported, writable, may disappear/change in the future */ | |
2ac76861 | 750 | int hdr_sz; /* sums _stored_ status-line, headers, and <CRLF> */ |
adba4a64 | 751 | |
d8b249ef | 752 | /* public, readable; never update these or their .hdr equivalents directly */ |
753 | int content_length; | |
754 | time_t date; | |
755 | time_t last_modified; | |
756 | time_t expires; | |
ec878047 | 757 | String content_type; |
d8b249ef | 758 | HttpHdrCc *cache_control; |
759 | HttpHdrContRange *content_range; | |
9f5a2895 | 760 | short int keep_alive; |
d8b249ef | 761 | |
adba4a64 | 762 | /* public, readable */ |
2ac76861 | 763 | HttpMsgParseState pstate; /* the current parsing state */ |
4f087419 | 764 | |
de336bbe | 765 | /* public, writable, but use httpReply* interfaces when possible */ |
adba4a64 | 766 | HttpStatusLine sline; |
d8b249ef | 767 | HttpHeader header; |
768 | HttpBody body; /* for small constant memory-resident text bodies only */ | |
adba4a64 | 769 | }; |
cb69b4c7 | 770 | |
b515fc11 | 771 | struct _http_state_flags { |
79618ba9 | 772 | unsigned int proxying:1; |
773 | unsigned int keepalive:1; | |
db1cd23c | 774 | unsigned int only_if_cached:1; |
b515fc11 | 775 | }; |
a8258824 | 776 | |
777 | struct _HttpStateData { | |
778 | StoreEntry *entry; | |
779 | request_t *request; | |
780 | char *reply_hdr; | |
781 | int reply_hdr_state; | |
1294c0fc | 782 | peer *peer; /* peer request made to */ |
a8258824 | 783 | int eof; /* reached end-of-object? */ |
784 | request_t *orig_request; | |
1294c0fc | 785 | int fd; |
b515fc11 | 786 | http_state_flags flags; |
db1cd23c | 787 | FwdState *fwd; |
a8258824 | 788 | }; |
789 | ||
790 | struct _icpUdpData { | |
791 | struct sockaddr_in address; | |
792 | void *msg; | |
793 | size_t len; | |
794 | icpUdpData *next; | |
795 | #ifndef LESS_TIMING | |
796 | struct timeval start; | |
797 | #endif | |
798 | log_type logcode; | |
17b6e784 | 799 | struct timeval queue_time; |
a8258824 | 800 | }; |
801 | ||
b4e7f82d | 802 | struct _ping_data { |
a8258824 | 803 | struct timeval start; |
804 | struct timeval stop; | |
805 | int n_sent; | |
806 | int n_recv; | |
807 | int n_replies_expected; | |
98829f69 | 808 | int timeout; /* msec */ |
465dc415 | 809 | int timedout; |
a8258824 | 810 | int w_rtt; |
b3264694 | 811 | int p_rtt; |
a8258824 | 812 | }; |
813 | ||
814 | struct _HierarchyLogEntry { | |
815 | hier_code code; | |
816 | char host[SQUIDHOSTNAMELEN]; | |
b4e7f82d | 817 | ping_data ping; |
4b4cd312 | 818 | char cd_host[SQUIDHOSTNAMELEN]; /* the host of selected by cd peer */ |
819 | peer_select_alg_t alg; /* peer selection algorithm */ | |
820 | lookup_t cd_lookup; /* cd prediction: none, miss, hit */ | |
821 | int n_choices; /* #peers we selected from (cd only) */ | |
822 | int n_ichoices; /* #peers with known rtt we selected from (cd only) */ | |
39edba21 | 823 | struct timeval peer_select_start; |
824 | struct timeval store_complete_stop; | |
a8258824 | 825 | }; |
826 | ||
827 | struct _AccessLogEntry { | |
828 | const char *url; | |
829 | struct { | |
830 | method_t method; | |
831 | int code; | |
832 | const char *content_type; | |
c68e9c6b | 833 | float version; |
a8258824 | 834 | } http; |
835 | struct { | |
836 | icp_opcode opcode; | |
837 | } icp; | |
838 | struct { | |
839 | struct in_addr caddr; | |
840 | size_t size; | |
841 | log_type code; | |
842 | int msec; | |
843 | const char *ident; | |
844 | } cache; | |
a8258824 | 845 | struct { |
846 | char *request; | |
847 | char *reply; | |
848 | } headers; | |
849 | struct { | |
850 | const char *method_str; | |
851 | } private; | |
bd05e3e3 | 852 | HierarchyLogEntry hier; |
a8258824 | 853 | }; |
854 | ||
855 | struct _clientHttpRequest { | |
856 | ConnStateData *conn; | |
857 | request_t *request; /* Parsed URL ... */ | |
23d92c64 | 858 | char *uri; |
859 | char *log_uri; | |
a8258824 | 860 | struct { |
78f1250a | 861 | off_t offset; |
862 | size_t size; | |
a8258824 | 863 | } out; |
98829f69 | 864 | HttpHdrRangeIter range_iter; /* data for iterating thru range specs */ |
865 | size_t req_sz; /* raw request size on input, not current request size */ | |
a8258824 | 866 | StoreEntry *entry; |
867 | StoreEntry *old_entry; | |
868 | log_type log_type; | |
6cfa8966 | 869 | #if USE_CACHE_DIGESTS |
04f0c415 | 870 | const char *lookup_type; /* temporary hack: storeGet() result: HIT/MISS/NONE */ |
871 | #endif | |
9b312a19 | 872 | http_status http_code; |
a8258824 | 873 | struct timeval start; |
874 | float http_ver; | |
875 | int redirect_state; | |
876 | aclCheck_t *acl_checklist; /* need ptr back so we can unreg if needed */ | |
877 | clientHttpRequest *next; | |
bd05e3e3 | 878 | AccessLogEntry al; |
77ed547a | 879 | struct { |
3d94aed0 | 880 | unsigned int accel:1; |
881 | unsigned int internal:1; | |
882 | unsigned int done_copying:1; | |
77ed547a | 883 | } flags; |
6d38ef86 | 884 | struct { |
885 | http_status status; | |
886 | char *location; | |
887 | } redirect; | |
0f1bc304 | 888 | dlink_node active; |
a8258824 | 889 | }; |
890 | ||
891 | struct _ConnStateData { | |
892 | int fd; | |
893 | struct { | |
894 | char *buf; | |
78f1250a | 895 | off_t offset; |
896 | size_t size; | |
a8258824 | 897 | } in; |
898 | clientHttpRequest *chr; | |
899 | struct sockaddr_in peer; | |
900 | struct sockaddr_in me; | |
901 | struct in_addr log_addr; | |
05832ae1 | 902 | char ident[USER_IDENT_SZ]; |
a8258824 | 903 | int nrequests; |
904 | int persistent; | |
da2b3a17 | 905 | struct { |
906 | int n; | |
907 | time_t until; | |
908 | } defer; | |
a8258824 | 909 | }; |
910 | ||
911 | struct _ipcache_addrs { | |
6d1c0d53 | 912 | struct in_addr *in_addrs; |
913 | unsigned char *bad_mask; | |
a8258824 | 914 | unsigned char count; |
915 | unsigned char cur; | |
22c653cd | 916 | unsigned char badcount; |
a8258824 | 917 | }; |
918 | ||
59c4d35b | 919 | struct _ip_pending { |
920 | IPH *handler; | |
921 | void *handlerData; | |
922 | ip_pending *next; | |
923 | }; | |
924 | ||
a8258824 | 925 | struct _ipcache_entry { |
ec878047 | 926 | /* first two items must be equivalent to hash_link */ |
a8258824 | 927 | char *name; |
bd05e3e3 | 928 | ipcache_entry *next; |
a8258824 | 929 | time_t lastref; |
930 | time_t expires; | |
931 | ipcache_addrs addrs; | |
59c4d35b | 932 | ip_pending *pending_head; |
a8258824 | 933 | char *error_message; |
b87b92fb | 934 | struct timeval request_time; |
2ac237e2 | 935 | dlink_node lru; |
936 | u_char locks; | |
a8258824 | 937 | ipcache_status_t status:3; |
938 | }; | |
939 | ||
59c4d35b | 940 | struct _fqdn_pending { |
941 | FQDNH *handler; | |
942 | void *handlerData; | |
943 | fqdn_pending *next; | |
944 | }; | |
945 | ||
1df370e3 | 946 | struct _fqdncache_entry { |
ec878047 | 947 | /* first two items must be equivalent to hash_link */ |
1df370e3 | 948 | char *name; |
bd05e3e3 | 949 | fqdncache_entry *next; |
1df370e3 | 950 | time_t lastref; |
951 | time_t expires; | |
952 | unsigned char name_count; | |
953 | char *names[FQDN_MAX_NAMES + 1]; | |
59c4d35b | 954 | fqdn_pending *pending_head; |
1df370e3 | 955 | char *error_message; |
74addf6c | 956 | struct timeval request_time; |
1df370e3 | 957 | dlink_node lru; |
958 | unsigned char locks; | |
959 | fqdncache_status_t status:3; | |
960 | }; | |
961 | ||
a8258824 | 962 | struct _domain_ping { |
963 | char *domain; | |
964 | int do_ping; /* boolean */ | |
bd05e3e3 | 965 | domain_ping *next; |
a8258824 | 966 | }; |
967 | ||
968 | struct _domain_type { | |
969 | char *domain; | |
970 | peer_t type; | |
bd05e3e3 | 971 | domain_type *next; |
a8258824 | 972 | }; |
973 | ||
c68e9c6b | 974 | #if USE_CACHE_DIGESTS |
e41e6dcd | 975 | struct _Version { |
4b4cd312 | 976 | short int current; /* current version */ |
977 | short int required; /* minimal version that can safely handle current version */ | |
e41e6dcd | 978 | }; |
979 | ||
980 | /* digest control block; used for transmission and storage */ | |
981 | struct _StoreDigestCBlock { | |
982 | Version ver; | |
983 | int capacity; | |
984 | int count; | |
985 | int del_count; | |
986 | int mask_size; | |
04f0c415 | 987 | unsigned char bits_per_entry; |
988 | unsigned char hash_func_count; | |
989 | short int reserved_short; | |
4b4cd312 | 990 | int reserved[32 - 6]; |
e41e6dcd | 991 | }; |
992 | ||
993 | struct _DigestFetchState { | |
e13ee7ad | 994 | PeerDigest *pd; |
e41e6dcd | 995 | StoreEntry *entry; |
996 | StoreEntry *old_entry; | |
e13ee7ad | 997 | request_t *request; |
e41e6dcd | 998 | int offset; |
999 | int mask_offset; | |
1000 | time_t start_time; | |
e13ee7ad | 1001 | time_t resp_time; |
1002 | time_t expires; | |
1003 | struct { | |
1004 | int msg; | |
1005 | int bytes; | |
1006 | } sent, recv; | |
e41e6dcd | 1007 | }; |
1008 | ||
1009 | /* statistics for cache digests and other hit "predictors" */ | |
1010 | struct _cd_guess_stats { | |
1011 | /* public, read-only */ | |
1012 | int true_hits; | |
1013 | int false_hits; | |
1014 | int true_misses; | |
1015 | int false_misses; | |
4b4cd312 | 1016 | int close_hits; /* tmp, remove it later */ |
e41e6dcd | 1017 | }; |
1018 | ||
1019 | struct _PeerDigest { | |
4d62b0af | 1020 | peer *peer; /* pointer back to peer structure, argh */ |
1021 | CacheDigest *cd; /* actual digest structure */ | |
1022 | String host; /* copy of peer->host */ | |
e13ee7ad | 1023 | const char *req_result; /* text status of the last request */ |
b515fc11 | 1024 | struct { |
4d62b0af | 1025 | unsigned int needed:1; /* there were requests for this digest */ |
e13ee7ad | 1026 | unsigned int usable:1; /* can be used for lookups */ |
79618ba9 | 1027 | unsigned int requested:1; /* in process of receiving [fresh] digest */ |
b515fc11 | 1028 | } flags; |
e13ee7ad | 1029 | struct { |
1030 | /* all times are absolute unless augmented with _delay */ | |
1031 | time_t initialized; /* creation */ | |
1032 | time_t needed; /* first lookup/use by a peer */ | |
1033 | time_t next_check; /* next scheduled check/refresh event */ | |
1034 | time_t retry_delay; /* delay before re-checking _invalid_ digest */ | |
1035 | time_t requested; /* requested a fresh copy of a digest */ | |
4d62b0af | 1036 | time_t req_delay; /* last request response time */ |
e13ee7ad | 1037 | time_t received; /* received the current copy of a digest */ |
1038 | time_t disabled; /* disabled for good */ | |
1039 | } times; | |
e41e6dcd | 1040 | struct { |
1041 | cd_guess_stats guess; | |
1042 | int used_count; | |
e13ee7ad | 1043 | struct { |
1044 | int msgs; | |
1045 | kb_t kbytes; | |
1046 | } sent, recv; | |
e41e6dcd | 1047 | } stats; |
1048 | }; | |
1049 | ||
c68e9c6b | 1050 | #endif |
1051 | ||
a8258824 | 1052 | struct _peer { |
1053 | char *host; | |
1054 | peer_t type; | |
1055 | struct sockaddr_in in_addr; | |
1056 | struct { | |
1057 | int pings_sent; | |
1058 | int pings_acked; | |
a8258824 | 1059 | int fetches; |
1060 | int rtt; | |
a8258824 | 1061 | int ignored_replies; |
1294c0fc | 1062 | int n_keepalives_sent; |
1063 | int n_keepalives_recv; | |
83b381d5 | 1064 | time_t probe_start; |
dc835977 | 1065 | time_t last_query; |
1066 | time_t last_reply; | |
eb406bb7 | 1067 | time_t last_connect_failure; |
1068 | time_t last_connect_probe; | |
dc835977 | 1069 | int logged_state; /* so we can print dead/revived msgs */ |
a8258824 | 1070 | } stats; |
399cabec | 1071 | struct { |
886f2785 | 1072 | int version; |
399cabec | 1073 | int counts[ICP_END]; |
886f2785 | 1074 | u_short port; |
399cabec | 1075 | } icp; |
1076 | #if USE_HTCP | |
1077 | struct { | |
1078 | double version; | |
1079 | int counts[2]; | |
886f2785 | 1080 | u_short port; |
399cabec | 1081 | } htcp; |
1082 | #endif | |
a8258824 | 1083 | u_short http_port; |
b6a2f15e | 1084 | domain_ping *peer_domain; |
bd05e3e3 | 1085 | domain_type *typelist; |
505e35db | 1086 | acl_access *access; |
cd196bc8 | 1087 | struct { |
79618ba9 | 1088 | unsigned int proxy_only:1; |
1089 | unsigned int no_query:1; | |
1090 | unsigned int no_digest:1; | |
1091 | unsigned int default_parent:1; | |
1092 | unsigned int roundrobin:1; | |
1093 | unsigned int mcast_responder:1; | |
1094 | unsigned int closest_only:1; | |
cd196bc8 | 1095 | #if USE_HTCP |
79618ba9 | 1096 | unsigned int htcp:1; |
cd196bc8 | 1097 | #endif |
79618ba9 | 1098 | unsigned int no_netdb_exchange:1; |
cd196bc8 | 1099 | #if DELAY_POOLS |
79618ba9 | 1100 | unsigned int no_delay:1; |
cd196bc8 | 1101 | #endif |
987de783 | 1102 | unsigned int allow_miss:1; |
cd196bc8 | 1103 | } options; |
a8258824 | 1104 | int weight; |
1105 | struct { | |
1106 | double avg_n_members; | |
1107 | int n_times_counted; | |
1108 | int n_replies_expected; | |
1109 | int ttl; | |
007b8be4 | 1110 | int id; |
b515fc11 | 1111 | struct { |
79618ba9 | 1112 | unsigned int count_event_pending:1; |
1113 | unsigned int counting:1; | |
ff283ec1 | 1114 | } flags; |
a8258824 | 1115 | } mcast; |
c68e9c6b | 1116 | #if USE_CACHE_DIGESTS |
e13ee7ad | 1117 | PeerDigest *digest; |
7e3ce7b9 | 1118 | char *digest_url; |
c68e9c6b | 1119 | #endif |
a8258824 | 1120 | int tcp_up; /* 0 if a connect() fails */ |
a8258824 | 1121 | struct in_addr addresses[10]; |
1122 | int n_addresses; | |
1123 | int rr_count; | |
82056f1e | 1124 | int rr_lastcount; |
bd05e3e3 | 1125 | peer *next; |
a8258824 | 1126 | int test_fd; |
afd88fbe | 1127 | #if USE_CARP |
1128 | struct { | |
1129 | unsigned long hash; | |
1130 | unsigned long load_multiplier; | |
1131 | float load_factor; | |
1132 | } carp; | |
1133 | #endif | |
c68e9c6b | 1134 | char *login; /* Proxy authorization */ |
3f62decd | 1135 | time_t connect_timeout; |
a8258824 | 1136 | }; |
1137 | ||
1138 | struct _net_db_name { | |
1139 | char *name; | |
74fbf3c9 | 1140 | net_db_name *htbl_next; |
1141 | net_db_name *next; | |
1142 | netdbEntry *net_db_entry; | |
a8258824 | 1143 | }; |
1144 | ||
1145 | struct _net_db_peer { | |
1146 | char *peername; | |
1147 | double hops; | |
1148 | double rtt; | |
1149 | time_t expires; | |
1150 | }; | |
1151 | ||
1152 | struct _netdbEntry { | |
ec878047 | 1153 | /* first two items must be equivalent to hash_link */ |
a8258824 | 1154 | char *key; |
74fbf3c9 | 1155 | netdbEntry *next; |
a8258824 | 1156 | char network[16]; |
1157 | int pings_sent; | |
1158 | int pings_recv; | |
1159 | double hops; | |
1160 | double rtt; | |
1161 | time_t next_ping_time; | |
1162 | time_t last_use_time; | |
1163 | int link_count; | |
1164 | net_db_name *hosts; | |
1165 | net_db_peer *peers; | |
1166 | int n_peers_alloc; | |
1167 | int n_peers; | |
1168 | }; | |
1169 | ||
1170 | struct _ps_state { | |
1171 | request_t *request; | |
1172 | StoreEntry *entry; | |
1173 | int always_direct; | |
1174 | int never_direct; | |
db1cd23c | 1175 | int direct; |
a8258824 | 1176 | PSC *callback; |
a8258824 | 1177 | void *callback_data; |
db1cd23c | 1178 | FwdServer *servers; |
85223cd7 | 1179 | /* |
1180 | * Why are these struct sockaddr_in instead of peer *? Because a | |
1181 | * peer structure can become invalid during the peer selection | |
1182 | * phase, specifically after a reconfigure. Thus we need to lookup | |
1183 | * the peer * based on the address when we are finally ready to | |
1184 | * reference the peer structure. | |
1185 | */ | |
1186 | struct sockaddr_in first_parent_miss; | |
1187 | struct sockaddr_in closest_parent_miss; | |
db1cd23c | 1188 | /* |
1189 | * ->hit and ->secho can be peer* because they should only be | |
1190 | * accessed during the thread when they are set | |
1191 | */ | |
1192 | peer *hit; | |
1193 | peer_t hit_type; | |
1194 | #if ALLOW_SOURCE_PING | |
1195 | peer *secho; | |
1196 | #endif | |
b4e7f82d | 1197 | ping_data ping; |
a8258824 | 1198 | aclCheck_t *acl_checklist; |
1199 | }; | |
1200 | ||
1201 | struct _pingerEchoData { | |
1202 | struct in_addr to; | |
1203 | unsigned char opcode; | |
1204 | int psize; | |
65ae9f56 | 1205 | char payload[PINGER_PAYLOAD_SZ]; |
a8258824 | 1206 | }; |
1207 | ||
1208 | struct _pingerReplyData { | |
1209 | struct in_addr from; | |
1210 | unsigned char opcode; | |
1211 | int rtt; | |
1212 | int hops; | |
1213 | int psize; | |
65ae9f56 | 1214 | char payload[PINGER_PAYLOAD_SZ]; |
a8258824 | 1215 | }; |
1216 | ||
1217 | struct _icp_common_t { | |
1218 | unsigned char opcode; /* opcode */ | |
1219 | unsigned char version; /* version number */ | |
1220 | unsigned short length; /* total length (bytes) */ | |
1221 | u_num32 reqnum; /* req number (req'd for UDP) */ | |
1222 | u_num32 flags; | |
1223 | u_num32 pad; | |
a8258824 | 1224 | u_num32 shostid; /* sender host id */ |
1225 | }; | |
1226 | ||
a8258824 | 1227 | struct _iostats { |
1228 | struct { | |
1229 | int reads; | |
1230 | int reads_deferred; | |
1231 | int read_hist[16]; | |
1232 | int writes; | |
1233 | int write_hist[16]; | |
1234 | } Http, Ftp, Gopher, Wais; | |
1235 | }; | |
1236 | ||
1237 | struct _mem_node { | |
1238 | char *data; | |
1239 | int len; | |
1240 | mem_node *next; | |
1241 | }; | |
1242 | ||
1243 | struct _mem_hdr { | |
1244 | mem_node *head; | |
1245 | mem_node *tail; | |
1246 | int origin_offset; | |
1247 | }; | |
1248 | ||
a8258824 | 1249 | /* keep track each client receiving data from that particular StoreEntry */ |
1250 | struct _store_client { | |
43329771 | 1251 | int type; |
a8258824 | 1252 | off_t copy_offset; |
1253 | off_t seen_offset; | |
1254 | size_t copy_size; | |
1255 | char *copy_buf; | |
1256 | STCB *callback; | |
1257 | void *callback_data; | |
07304bf9 | 1258 | StoreEntry *entry; /* ptr to the parent StoreEntry, argh! */ |
2391a162 | 1259 | storeIOState *swapin_sio; |
f115fadd | 1260 | struct { |
3d94aed0 | 1261 | unsigned int disk_io_pending:1; |
1262 | unsigned int store_copying:1; | |
1263 | unsigned int copy_event_pending:1; | |
f115fadd | 1264 | } flags; |
bd05e3e3 | 1265 | store_client *next; |
447e176b | 1266 | #if DELAY_POOLS |
1267 | delay_id delay_id; | |
1268 | #endif | |
a8258824 | 1269 | }; |
1270 | ||
1a3db59c | 1271 | |
a8258824 | 1272 | /* This structure can be freed while object is purged out from memory */ |
1273 | struct _MemObject { | |
2ac237e2 | 1274 | method_t method; |
9fb13bb6 | 1275 | char *url; |
18fe65d0 | 1276 | mem_hdr data_hdr; |
8350fe9b | 1277 | off_t inmem_hi; |
1278 | off_t inmem_lo; | |
bd05e3e3 | 1279 | store_client *clients; |
a8258824 | 1280 | int nclients; |
8350fe9b | 1281 | struct { |
e3ef2b09 | 1282 | off_t queue_offset; /* relative to in-mem data */ |
2391a162 | 1283 | storeIOState *sio; |
8350fe9b | 1284 | } swapout; |
cb69b4c7 | 1285 | HttpReply *reply; |
a8258824 | 1286 | request_t *request; |
1287 | struct timeval start_ping; | |
b4e7f82d | 1288 | IRCB *ping_reply_callback; |
a8258824 | 1289 | void *ircb_data; |
1290 | int fd; /* FD of client creating this entry */ | |
1291 | struct { | |
1292 | STABH *callback; | |
1293 | void *data; | |
1294 | } abort; | |
88738790 | 1295 | char *log_url; |
2b906e48 | 1296 | #if HEAP_REPLACEMENT |
1297 | /* | |
1298 | * A MemObject knows where it is in the in-memory heap. | |
1299 | */ | |
1300 | heap_node *node; | |
1301 | #else | |
b93bcace | 1302 | dlink_node lru; |
2b906e48 | 1303 | #endif |
007b8be4 | 1304 | int id; |
07304bf9 | 1305 | ssize_t object_sz; |
e3ef2b09 | 1306 | size_t swap_hdr_sz; |
bc87dc25 | 1307 | #if URL_CHECKSUM_DEBUG |
1308 | unsigned int chksum; | |
1309 | #endif | |
a8258824 | 1310 | }; |
1311 | ||
a8258824 | 1312 | struct _StoreEntry { |
ec878047 | 1313 | /* first two items must be same as hash_link */ |
9fb13bb6 | 1314 | const cache_key *key; |
bd05e3e3 | 1315 | StoreEntry *next; |
a8258824 | 1316 | MemObject *mem_obj; |
a8258824 | 1317 | time_t timestamp; |
1318 | time_t lastref; | |
1319 | time_t expires; | |
1320 | time_t lastmod; | |
07304bf9 | 1321 | size_t swap_file_sz; |
a21fbb54 | 1322 | u_short refcount; |
d46a87a8 | 1323 | u_short flags; |
2391a162 | 1324 | sfileno swap_file_number; |
2b906e48 | 1325 | #if HEAP_REPLACEMENT |
1326 | heap_node *node; | |
2b906e48 | 1327 | #else |
b93bcace | 1328 | dlink_node lru; |
2b906e48 | 1329 | #endif |
a3cb7458 | 1330 | u_short lock_count; /* Assume < 65536! */ |
a8258824 | 1331 | mem_status_t mem_status:3; |
1332 | ping_status_t ping_status:3; | |
1333 | store_status_t store_status:3; | |
1334 | swap_status_t swap_status:3; | |
a8258824 | 1335 | }; |
1336 | ||
1337 | struct _SwapDir { | |
0e4e0e7d | 1338 | swapdir_t type; |
1339 | fileMap *map; | |
a8258824 | 1340 | int cur_size; |
c6844e77 | 1341 | int low_size; |
a8258824 | 1342 | int max_size; |
0e4e0e7d | 1343 | char *path; |
b2c141d4 | 1344 | int index; /* This entry's index into the swapDirs array */ |
fc8b9fc0 | 1345 | sfileno suggest; |
1346 | int removals; | |
1347 | int scanned; | |
72615e4a | 1348 | struct { |
1349 | unsigned int selected:1; | |
b6a2f15e | 1350 | unsigned int read_only:1; |
72615e4a | 1351 | } flags; |
b2c141d4 | 1352 | STINIT *init; |
1353 | STNEWFS *newfs; | |
1354 | struct { | |
1355 | STOBJOPEN *open; | |
1356 | STOBJCLOSE *close; | |
1357 | STOBJREAD *read; | |
1358 | STOBJWRITE *write; | |
1359 | STOBJUNLINK *unlink; | |
b2c141d4 | 1360 | } obj; |
1361 | struct { | |
1362 | STLOGOPEN *open; | |
1363 | STLOGCLOSE *close; | |
200ba06e | 1364 | STLOGWRITE *write; |
b2c141d4 | 1365 | struct { |
1366 | STLOGCLEANOPEN *open; | |
1367 | STLOGCLEANWRITE *write; | |
1368 | void *state; | |
1369 | } clean; | |
1370 | } log; | |
fc8b9fc0 | 1371 | #if !HEAP_REPLACEMENT |
1372 | dlink_list lru_list; | |
1373 | dlink_node *lru_walker; | |
1374 | #endif | |
0e4e0e7d | 1375 | union { |
1376 | struct { | |
1377 | int l1; | |
1378 | int l2; | |
1379 | int swaplog_fd; | |
1380 | } ufs; | |
8798ad05 | 1381 | #if USE_DISKD |
1382 | struct { | |
1383 | int l1; | |
1384 | int l2; | |
1385 | int swaplog_fd; | |
1386 | int smsgid; | |
1387 | int rmsgid; | |
1388 | int wfd; | |
8798ad05 | 1389 | int away; |
c8366e06 | 1390 | struct { |
1391 | char *buf; | |
1392 | link_list *stack; | |
1393 | int id; | |
1394 | } shm; | |
8798ad05 | 1395 | } diskd; |
1396 | #endif | |
0e4e0e7d | 1397 | } u; |
a8258824 | 1398 | }; |
1399 | ||
92695e5e | 1400 | struct _request_flags { |
3d94aed0 | 1401 | unsigned int range:1; |
1402 | unsigned int nocache:1; | |
1403 | unsigned int ims:1; | |
1404 | unsigned int auth:1; | |
1405 | unsigned int cachable:1; | |
1406 | unsigned int hierarchical:1; | |
1407 | unsigned int loopdetect:1; | |
1408 | unsigned int proxy_keepalive:1; | |
1409 | unsigned int proxying:1; | |
1410 | unsigned int refresh:1; | |
1411 | unsigned int used_proxy_auth:1; | |
1412 | unsigned int redirected:1; | |
9689d97c | 1413 | unsigned int need_validation:1; |
9f60cfdf | 1414 | #if HTTP_VIOLATIONS |
886f2785 | 1415 | unsigned int nocache_hack:1; /* for changing/ignoring no-cache requests */ |
9f60cfdf | 1416 | #endif |
c68e9c6b | 1417 | unsigned int accelerated:1; |
1418 | unsigned int internal:1; | |
92695e5e | 1419 | }; |
1420 | ||
d03d26fb | 1421 | struct _link_list { |
1422 | void *ptr; | |
1423 | struct _link_list *next; | |
1424 | }; | |
1425 | ||
2391a162 | 1426 | struct _storeIOState { |
2391a162 | 1427 | sfileno swap_file_number; |
1428 | mode_t mode; | |
1429 | size_t st_size; /* do stat(2) after read open */ | |
1430 | off_t offset; /* current offset pointer */ | |
1431 | STIOCB *callback; | |
1432 | void *callback_data; | |
1433 | struct { | |
1434 | STRCB *callback; | |
1435 | void *callback_data; | |
1436 | } read; | |
1437 | struct { | |
1438 | unsigned int closing:1; /* debugging aid */ | |
1439 | } flags; | |
1440 | union { | |
1441 | struct { | |
819244bf | 1442 | int fd; |
2391a162 | 1443 | struct { |
1444 | unsigned int close_request:1; | |
1445 | unsigned int reading:1; | |
1446 | unsigned int writing:1; | |
1447 | } flags; | |
1448 | } ufs; | |
53fa92a5 | 1449 | struct { |
1450 | int fd; | |
53fa92a5 | 1451 | struct { |
1452 | unsigned int close_request:1; | |
1453 | unsigned int reading:1; | |
1454 | unsigned int writing:1; | |
d03d26fb | 1455 | unsigned int opening:1; |
53fa92a5 | 1456 | } flags; |
6f992224 | 1457 | const char *read_buf; |
1458 | link_list *pending_writes; | |
1f38f50a | 1459 | link_list *pending_reads; |
53fa92a5 | 1460 | } aufs; |
8798ad05 | 1461 | #if USE_DISKD |
1462 | struct { | |
1463 | int id; | |
1464 | struct { | |
1465 | unsigned int reading:1; | |
1466 | unsigned int writing:1; | |
1467 | } flags; | |
1468 | char *read_buf; | |
1469 | } diskd; | |
1470 | #endif | |
2391a162 | 1471 | } type; |
1472 | }; | |
1473 | ||
a8258824 | 1474 | struct _request_t { |
1475 | method_t method; | |
1476 | protocol_t protocol; | |
1477 | char login[MAX_LOGIN_SZ]; | |
1478 | char host[SQUIDHOSTNAMELEN + 1]; | |
def67559 | 1479 | char user_ident[USER_IDENT_SZ]; /* from proxy auth or ident server */ |
a8258824 | 1480 | u_short port; |
02922e76 | 1481 | String urlpath; |
e4a45101 | 1482 | char *canonical; |
a8258824 | 1483 | int link_count; /* free when zero */ |
92695e5e | 1484 | request_flags flags; |
8e092300 | 1485 | HttpHdrCc *cache_control; |
d192d11f | 1486 | HttpHdrRange *range; |
a8258824 | 1487 | float http_ver; |
1488 | time_t ims; | |
1489 | int imslen; | |
1490 | int max_forwards; | |
7e3ce7b9 | 1491 | /* these in_addr's could probably be sockaddr_in's */ |
a8258824 | 1492 | struct in_addr client_addr; |
3c11d1f5 | 1493 | struct in_addr my_addr; |
7e3ce7b9 | 1494 | unsigned short my_port; |
99edd1c3 | 1495 | HttpHeader header; |
a8258824 | 1496 | char *body; |
1497 | size_t body_sz; | |
1f38f50a | 1498 | int content_length; |
bd05e3e3 | 1499 | HierarchyLogEntry hier; |
88aad2e5 | 1500 | err_type err_type; |
c68e9c6b | 1501 | char *peer_login; /* Configured peer login:password */ |
9bc73deb | 1502 | time_t lastmod; /* Used on refreshes */ |
a8258824 | 1503 | }; |
1504 | ||
1505 | struct _cachemgr_passwd { | |
1506 | char *passwd; | |
22f3fd98 | 1507 | wordlist *actions; |
bd05e3e3 | 1508 | cachemgr_passwd *next; |
a8258824 | 1509 | }; |
1510 | ||
1511 | struct _refresh_t { | |
1512 | char *pattern; | |
1513 | regex_t compiled_pattern; | |
1514 | time_t min; | |
c3f6d204 | 1515 | double pct; |
a8258824 | 1516 | time_t max; |
bd05e3e3 | 1517 | refresh_t *next; |
c3f6d204 | 1518 | struct { |
1dfa1d81 | 1519 | unsigned int icase:1; |
9f60cfdf | 1520 | #if HTTP_VIOLATIONS |
1dfa1d81 | 1521 | unsigned int override_expire:1; |
1522 | unsigned int override_lastmod:1; | |
cbe3a719 | 1523 | unsigned int reload_into_ims:1; |
1524 | unsigned int ignore_reload:1; | |
9f60cfdf | 1525 | #endif |
c3f6d204 | 1526 | } flags; |
a8258824 | 1527 | }; |
1528 | ||
1529 | struct _CommWriteStateData { | |
1530 | char *buf; | |
1531 | size_t size; | |
1532 | off_t offset; | |
1533 | CWCB *handler; | |
1534 | void *handler_data; | |
74fbf3c9 | 1535 | FREE *free_func; |
a8258824 | 1536 | }; |
9b312a19 | 1537 | |
1538 | struct _ErrorState { | |
1539 | err_type type; | |
02922e76 | 1540 | int page_id; |
9b312a19 | 1541 | http_status http_status; |
1542 | request_t *request; | |
1543 | char *url; | |
c45ed9ad | 1544 | int xerrno; |
9b312a19 | 1545 | char *host; |
1546 | u_short port; | |
1547 | char *dnsserver_msg; | |
1548 | time_t ttl; | |
1549 | struct in_addr src_addr; | |
1550 | char *redirect_url; | |
1551 | ERCB *callback; | |
1552 | void *callback_data; | |
b515fc11 | 1553 | struct { |
79618ba9 | 1554 | unsigned int flag_cbdata:1; |
b515fc11 | 1555 | } flags; |
b9916917 | 1556 | struct { |
9bc73deb | 1557 | wordlist *server_msg; |
b9916917 | 1558 | char *request; |
1559 | char *reply; | |
1560 | } ftp; | |
e144eae4 | 1561 | char *request_hdrs; |
9b312a19 | 1562 | }; |
f2908497 | 1563 | |
12cf1be2 | 1564 | /* |
1565 | * "very generic" histogram; | |
1566 | * see important comments on hbase_f restrictions in StatHist.c | |
1567 | */ | |
1568 | struct _StatHist { | |
1569 | int *bins; | |
1570 | int capacity; | |
e9a13293 | 1571 | double min; |
1572 | double max; | |
1573 | double scale; | |
95c297ec | 1574 | hbase_f *val_in; /* e.g., log() for log-based histogram */ |
1575 | hbase_f *val_out; /* e.g., exp() for log based histogram */ | |
7ae52c25 | 1576 | }; |
1577 | ||
12cf1be2 | 1578 | /* |
1579 | * if you add a field to StatCounters, | |
1d803566 | 1580 | * you MUST sync statCountersInitSpecial, statCountersClean, and statCountersCopy |
12cf1be2 | 1581 | */ |
f2908497 | 1582 | struct _StatCounters { |
1583 | struct { | |
98829f69 | 1584 | int clients; |
f2908497 | 1585 | int requests; |
1586 | int hits; | |
4f4d1d6e | 1587 | int mem_hits; |
1588 | int disk_hits; | |
f2908497 | 1589 | int errors; |
a7c05555 | 1590 | kb_t kbytes_in; |
1591 | kb_t kbytes_out; | |
1592 | kb_t hit_kbytes_out; | |
12cf1be2 | 1593 | StatHist miss_svc_time; |
1594 | StatHist nm_svc_time; | |
7c9c84ad | 1595 | StatHist nh_svc_time; |
12cf1be2 | 1596 | StatHist hit_svc_time; |
1597 | StatHist all_svc_time; | |
f2908497 | 1598 | } client_http; |
7ae52c25 | 1599 | struct { |
a0f32775 | 1600 | struct { |
1601 | int requests; | |
1602 | int errors; | |
1603 | kb_t kbytes_in; | |
1604 | kb_t kbytes_out; | |
399e85ea | 1605 | } all , http, ftp, other; |
7ae52c25 | 1606 | } server; |
f2908497 | 1607 | struct { |
1608 | int pkts_sent; | |
071a3ae7 | 1609 | int queries_sent; |
1610 | int replies_sent; | |
f2908497 | 1611 | int pkts_recv; |
071a3ae7 | 1612 | int queries_recv; |
1613 | int replies_recv; | |
a7c05555 | 1614 | int hits_sent; |
1615 | int hits_recv; | |
8064065e | 1616 | int replies_queued; |
17b6e784 | 1617 | int replies_dropped; |
a7c05555 | 1618 | kb_t kbytes_sent; |
071a3ae7 | 1619 | kb_t q_kbytes_sent; |
1620 | kb_t r_kbytes_sent; | |
a7c05555 | 1621 | kb_t kbytes_recv; |
071a3ae7 | 1622 | kb_t q_kbytes_recv; |
1623 | kb_t r_kbytes_recv; | |
12cf1be2 | 1624 | StatHist query_svc_time; |
1625 | StatHist reply_svc_time; | |
4b4cd312 | 1626 | int query_timeouts; |
c127134a | 1627 | int times_used; |
f2908497 | 1628 | } icp; |
1629 | struct { | |
1630 | int requests; | |
1631 | } unlink; | |
9973e9fe | 1632 | struct { |
12cf1be2 | 1633 | StatHist svc_time; |
9973e9fe | 1634 | } dns; |
c127134a | 1635 | struct { |
1636 | int times_used; | |
26b164ac | 1637 | kb_t kbytes_sent; |
1638 | kb_t kbytes_recv; | |
c127134a | 1639 | kb_t memory; |
00485c29 | 1640 | int msgs_sent; |
1641 | int msgs_recv; | |
c68e9c6b | 1642 | #if USE_CACHE_DIGESTS |
4b4cd312 | 1643 | cd_guess_stats guess; |
c68e9c6b | 1644 | #endif |
69c95dd3 | 1645 | StatHist on_xition_count; |
c127134a | 1646 | } cd; |
69c95dd3 | 1647 | struct { |
1648 | int times_used; | |
1649 | } netdb; | |
f2908497 | 1650 | int page_faults; |
1651 | int select_loops; | |
d239c2f5 | 1652 | int select_fds; |
1653 | double select_time; | |
f2908497 | 1654 | double cputime; |
d5649d9f | 1655 | struct timeval timestamp; |
c6ecdbc3 | 1656 | StatHist comm_icp_incoming; |
ef523f99 | 1657 | StatHist comm_dns_incoming; |
c6ecdbc3 | 1658 | StatHist comm_http_incoming; |
26d6ee93 | 1659 | StatHist select_fds_hist; |
886f2785 | 1660 | struct { |
1661 | struct { | |
1662 | int opens; | |
1663 | int closes; | |
1664 | int reads; | |
1665 | int writes; | |
1666 | int seeks; | |
64b54eed | 1667 | int unlinks; |
886f2785 | 1668 | } disk; |
1669 | struct { | |
1670 | int accepts; | |
1671 | int sockets; | |
1672 | int connects; | |
1673 | int binds; | |
1674 | int closes; | |
1675 | int reads; | |
1676 | int writes; | |
1677 | int recvfroms; | |
1678 | int sendtos; | |
1679 | } sock; | |
1680 | #if HAVE_POLL | |
1681 | int polls; | |
1682 | #else | |
1683 | int selects; | |
1684 | #endif | |
1685 | } syscalls; | |
2c4f7ab2 | 1686 | int swap_files_cleaned; |
bfae3379 | 1687 | int aborted_requests; |
f2908497 | 1688 | }; |
69c01cd7 | 1689 | |
fcd2d3ef | 1690 | /* per header statistics */ |
1691 | struct _HttpHeaderStat { | |
1692 | const char *label; | |
1693 | HttpHeaderMask *owner_mask; | |
1694 | ||
1695 | StatHist hdrUCountDistr; | |
1696 | StatHist fieldTypeDistr; | |
1697 | StatHist ccTypeDistr; | |
1698 | ||
1699 | int parsedCount; | |
1700 | int ccParsedCount; | |
1701 | int destroyedCount; | |
1702 | int busyDestroyedCount; | |
1703 | }; | |
1704 | ||
1705 | ||
69c01cd7 | 1706 | struct _tlv { |
5830cdb3 | 1707 | char type; |
1708 | int length; | |
1709 | void *value; | |
bd05e3e3 | 1710 | tlv *next; |
5830cdb3 | 1711 | }; |
1712 | ||
07304bf9 | 1713 | struct _storeSwapLogData { |
5830cdb3 | 1714 | char op; |
2391a162 | 1715 | sfileno swap_file_number; |
5830cdb3 | 1716 | time_t timestamp; |
1717 | time_t lastref; | |
1718 | time_t expires; | |
1719 | time_t lastmod; | |
07304bf9 | 1720 | size_t swap_file_sz; |
5830cdb3 | 1721 | u_short refcount; |
d46a87a8 | 1722 | u_short flags; |
7363fc17 | 1723 | unsigned char key[MD5_DIGEST_CHARS]; |
69c01cd7 | 1724 | }; |
59c4d35b | 1725 | |
02922e76 | 1726 | /* object to track per-action memory usage (e.g. #idle objects) */ |
1727 | struct _MemMeter { | |
9bc73deb | 1728 | ssize_t level; /* current level (count or volume) */ |
1729 | ssize_t hwater_level; /* high water mark */ | |
d8b249ef | 1730 | time_t hwater_stamp; /* timestamp of last high water mark change */ |
02922e76 | 1731 | }; |
1732 | ||
1733 | /* object to track per-pool memory usage (alloc = inuse+idle) */ | |
1734 | struct _MemPoolMeter { | |
1735 | MemMeter alloc; | |
1736 | MemMeter inuse; | |
1737 | MemMeter idle; | |
1738 | gb_t saved; | |
7f8bbdcd | 1739 | gb_t total; |
02922e76 | 1740 | }; |
1741 | ||
1742 | /* a pool is a [growing] space for objects of the same size */ | |
1743 | struct _MemPool { | |
1744 | const char *label; | |
1745 | size_t obj_size; | |
1746 | Stack pstack; /* stack for free pointers */ | |
1747 | MemPoolMeter meter; | |
1748 | }; | |
1749 | ||
59c4d35b | 1750 | struct _ClientInfo { |
ec878047 | 1751 | /* first two items must be equivalent to hash_link */ |
59c4d35b | 1752 | char *key; |
ca3c5a71 | 1753 | ClientInfo *next; |
59c4d35b | 1754 | struct in_addr addr; |
1755 | struct { | |
1756 | int result_hist[LOG_TYPE_MAX]; | |
1757 | int n_requests; | |
ec878047 | 1758 | kb_t kbytes_in; |
1759 | kb_t kbytes_out; | |
1760 | kb_t hit_kbytes_out; | |
59c4d35b | 1761 | } Http, Icp; |
1762 | struct { | |
1763 | time_t time; | |
1764 | int n_req; | |
1765 | int n_denied; | |
1766 | } cutoff; | |
9bc73deb | 1767 | int n_established; /* number of current established connections */ |
59c4d35b | 1768 | }; |
c411be12 | 1769 | |
c411be12 | 1770 | struct _CacheDigest { |
1771 | /* public, read-only */ | |
1afe05c5 | 1772 | char *mask; /* bit mask */ |
1773 | size_t mask_size; /* mask size in bytes */ | |
1774 | int capacity; /* expected maximum for .count, not a hard limit */ | |
04f0c415 | 1775 | int bits_per_entry; /* number of bits allocated for each entry from capacity */ |
1afe05c5 | 1776 | int count; /* number of digested entries */ |
1777 | int del_count; /* number of deletions performed so far */ | |
c411be12 | 1778 | }; |
910169e5 | 1779 | |
db1cd23c | 1780 | struct _FwdServer { |
1781 | peer *peer; /* NULL --> origin server */ | |
1782 | hier_code code; | |
1783 | FwdServer *next; | |
1784 | }; | |
1785 | ||
910169e5 | 1786 | struct _FwdState { |
1787 | int client_fd; | |
1788 | StoreEntry *entry; | |
1789 | request_t *request; | |
1790 | FwdServer *servers; | |
6801f8a8 | 1791 | int server_fd; |
ec250dfd | 1792 | ErrorState *err; |
f563eea9 | 1793 | time_t start; |
68bd6892 | 1794 | int n_tries; |
ee08bdf5 | 1795 | struct { |
1796 | unsigned int dont_retry:1; | |
9bc73deb | 1797 | unsigned int ftp_pasv_failed:1; |
ee08bdf5 | 1798 | } flags; |
910169e5 | 1799 | }; |
1800 | ||
86aebcda | 1801 | #if USE_HTCP |
1802 | struct _htcpReplyData { | |
886f2785 | 1803 | int hit; |
1804 | HttpHeader hdr; | |
1805 | u_num32 msg_id; | |
1806 | double version; | |
1807 | struct { | |
b4e7f82d | 1808 | /* cache-to-origin */ |
886f2785 | 1809 | double rtt; |
1810 | int samp; | |
1811 | int hops; | |
1812 | } cto; | |
86aebcda | 1813 | }; |
886f2785 | 1814 | |
86aebcda | 1815 | #endif |
74addf6c | 1816 | |
1817 | ||
1818 | struct _helper_request { | |
1819 | char *buf; | |
1820 | HLPCB *callback; | |
1821 | void *data; | |
1822 | }; | |
1823 | ||
1824 | struct _helper { | |
1825 | wordlist *cmdline; | |
1826 | dlink_list servers; | |
1827 | dlink_list queue; | |
1f5f60dd | 1828 | const char *id_name; |
74addf6c | 1829 | int n_to_start; |
1830 | int n_running; | |
1831 | int ipc_type; | |
1832 | time_t last_queue_warn; | |
1833 | struct { | |
1834 | int requests; | |
1835 | int replies; | |
1836 | int queue_size; | |
1837 | int avg_svc_time; | |
1838 | } stats; | |
1839 | }; | |
1840 | ||
1841 | struct _helper_server { | |
1842 | int index; | |
1843 | int rfd; | |
1844 | int wfd; | |
1845 | char *buf; | |
1846 | size_t buf_sz; | |
1847 | off_t offset; | |
1848 | struct timeval dispatch_time; | |
1849 | struct timeval answer_time; | |
1850 | dlink_node link; | |
1851 | helper *parent; | |
1852 | helper_request *request; | |
838b993c | 1853 | struct _helper_flags { |
1854 | unsigned int alive:1; | |
1855 | unsigned int busy:1; | |
1856 | unsigned int closing:1; | |
1857 | unsigned int shutdown:1; | |
1858 | } flags; | |
74addf6c | 1859 | struct { |
1860 | int uses; | |
1861 | } stats; | |
1862 | }; | |
1863 | ||
1864 | /* | |
1865 | * use this when you need to pass callback data to a blocking | |
1866 | * operation, but you don't want to add that pointer to cbdata | |
1867 | */ | |
1868 | struct _generic_cbdata { | |
1869 | void *data; | |
1870 | }; | |
b2c141d4 | 1871 | |
1872 | struct _store_rebuild_data { | |
1873 | int objcount; /* # objects successfully reloaded */ | |
1874 | int expcount; /* # objects expired */ | |
1875 | int scancount; /* # entries scanned or read from state file */ | |
1876 | int clashcount; /* # swapfile clashes avoided */ | |
1877 | int dupcount; /* # duplicates purged */ | |
1878 | int cancelcount; /* # SWAP_LOG_DEL objects purged */ | |
1879 | int invalid; /* # bad lines */ | |
1880 | int badflags; /* # bad e->flags */ | |
1881 | int bad_log_op; | |
1882 | int zero_object_sz; | |
1883 | }; | |
5673c2e2 | 1884 | |
1885 | struct _Logfile { | |
1886 | int fd; | |
1887 | char path[MAXPATHLEN]; | |
1888 | char *buf; | |
1889 | size_t bufsz; | |
1890 | off_t offset; | |
1891 | }; |