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30a4f2a8 | 1 | /* |
63be0a78 | 2 | * $Id: main.cc,v 1.459 2008/02/26 21:49:35 amosjeffries Exp $ |
30a4f2a8 | 3 | * |
4 | * DEBUG: section 1 Startup and Main Loop | |
5 | * AUTHOR: Harvest Derived | |
6 | * | |
2b6662ba | 7 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 8 | * ---------------------------------------------------------- |
30a4f2a8 | 9 | * |
2b6662ba | 10 | * Squid is the result of efforts by numerous individuals from |
11 | * the Internet community; see the CONTRIBUTORS file for full | |
12 | * details. Many organizations have provided support for Squid's | |
13 | * development; see the SPONSORS file for full details. Squid is | |
14 | * Copyrighted (C) 2001 by the Regents of the University of | |
15 | * California; see the COPYRIGHT file for full details. Squid | |
16 | * incorporates software developed and/or copyrighted by other | |
17 | * sources; see the CREDITS file for full details. | |
30a4f2a8 | 18 | * |
19 | * This program is free software; you can redistribute it and/or modify | |
20 | * it under the terms of the GNU General Public License as published by | |
21 | * the Free Software Foundation; either version 2 of the License, or | |
22 | * (at your option) any later version. | |
23 | * | |
24 | * This program is distributed in the hope that it will be useful, | |
25 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
27 | * GNU General Public License for more details. | |
28 | * | |
29 | * You should have received a copy of the GNU General Public License | |
30 | * along with this program; if not, write to the Free Software | |
cbdec147 | 31 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 32 | * |
30a4f2a8 | 33 | */ |
44a47c6e | 34 | |
35 | #include "squid.h" | |
450e0c10 | 36 | #include "AccessLogEntry.h" |
e6ccf245 | 37 | #include "authenticate.h" |
62ee09ca | 38 | #include "CacheManager.h" |
39 | #include "ConfigParser.h" | |
aa839030 | 40 | #include "errorpage.h" |
a553a5a3 | 41 | #include "event.h" |
42 | #include "EventLoop.h" | |
62ee09ca | 43 | #include "ExternalACL.h" |
e6ccf245 | 44 | #include "Store.h" |
45 | #include "ICP.h" | |
5a7431b8 | 46 | #include "ident.h" |
528b2c61 | 47 | #include "HttpReply.h" |
62ee09ca | 48 | #include "pconn.h" |
528b2c61 | 49 | #include "Mem.h" |
b0dd28ba | 50 | #include "ACLASN.h" |
51 | #include "ACL.h" | |
75faaa7a | 52 | #include "htcp.h" |
59b2d47f | 53 | #include "StoreFileSystem.h" |
b9ae18aa | 54 | #include "DiskIO/DiskIOModule.h" |
f900210a | 55 | #include "comm.h" |
62ee09ca | 56 | #if USE_EPOLL |
57 | #include "comm_epoll.h" | |
58 | #endif | |
59 | #if USE_KQUEUE | |
60 | #include "comm_kqueue.h" | |
61 | #endif | |
62 | #if USE_POLL | |
63 | #include "comm_poll.h" | |
64 | #endif | |
7cdb47bc | 65 | #if defined(USE_SELECT) || defined(USE_SELECT_WIN32) |
663c0a38 | 66 | #include "comm_select.h" |
67 | #endif | |
985c86bc | 68 | #include "SquidTime.h" |
c8f4eac4 | 69 | #include "SwapDir.h" |
b6b6f466 | 70 | #include "forward.h" |
d9e7ee1f | 71 | #include "MemPool.h" |
cc192b50 | 72 | #include "ICMPSquid.h" |
44a47c6e | 73 | |
57afc994 AR |
74 | #if USE_LOADABLE_MODULES |
75 | #include "LoadableModules.h" | |
76 | #endif | |
77 | ||
b958cb0f AR |
78 | #if ICAP_CLIENT |
79 | #include "ICAP/ICAPConfig.h" | |
80 | #endif | |
81 | #if USE_ADAPTATION | |
82 | #include "adaptation/Config.h" | |
83 | #endif | |
84 | ||
1a774556 | 85 | #if USE_WIN32_SERVICE |
86 | ||
87 | #include "squid_windows.h" | |
88 | #include <process.h> | |
89 | ||
90 | static int opt_install_service = FALSE; | |
91 | static int opt_remove_service = FALSE; | |
92 | static int opt_signal_service = FALSE; | |
93 | static int opt_command_line = FALSE; | |
94 | extern void WIN32_svcstatusupdate(DWORD, DWORD); | |
95 | void WINAPI WIN32_svcHandler(DWORD); | |
96 | ||
97 | #endif | |
98 | ||
63be0a78 | 99 | /** for error reporting from xmalloc and friends */ |
b293c4d8 | 100 | SQUIDCEXTERN void (*failure_notify) (const char *); |
30a4f2a8 | 101 | |
e13ee7ad | 102 | static int opt_parse_cfg_only = 0; |
5e6d4736 | 103 | static char *opt_syslog_facility = NULL; |
30a4f2a8 | 104 | static int icpPortNumOverride = 1; /* Want to detect "-u 0" */ |
e13ee7ad | 105 | static int configured_once = 0; |
30a4f2a8 | 106 | #if MALLOC_DBG |
4d64d74a | 107 | static int malloc_debug_level = 0; |
30a4f2a8 | 108 | #endif |
5cd39a10 | 109 | static volatile int do_reconfigure = 0; |
110 | static volatile int do_rotate = 0; | |
2681d383 | 111 | static volatile int do_shutdown = 0; |
ae1feb30 | 112 | static volatile int shutdown_status = 0; |
4d7add01 | 113 | |
5cd39a10 | 114 | static void mainRotate(void); |
115 | static void mainReconfigure(void); | |
f5b8bbc4 | 116 | static void mainInitialize(void); |
f5b8bbc4 | 117 | static void usage(void); |
63be0a78 | 118 | static void mainParseOptions(int argc, char *argv[]); |
f5b8bbc4 | 119 | static void sendSignal(void); |
120 | static void serverConnectionsOpen(void); | |
bbe199dc | 121 | static void watch_child(char **); |
85407535 | 122 | static void setEffectiveUser(void); |
36a97e19 | 123 | #if MEM_GEN_TRACE |
124 | extern void log_trace_done(); | |
125 | extern void log_trace_init(char *); | |
126 | #endif | |
8ff3fa2e | 127 | static void SquidShutdown(void); |
b6a2f15e | 128 | static void mainSetCwd(void); |
efd900cb | 129 | static int checkRunningPid(void); |
85407535 | 130 | |
c83f0bd5 | 131 | static CacheManager *manager=CacheManager::GetInstance(); |
62ee09ca | 132 | |
b293c4d8 | 133 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 134 | static const char *squid_start_script = "squid_start"; |
b293c4d8 | 135 | #endif |
e18d7fdc | 136 | |
9bc73deb | 137 | #if TEST_ACCESS |
138 | #include "test_access.c" | |
139 | #endif | |
140 | ||
63be0a78 | 141 | /** temporary thunk across to the unrefactored store interface */ |
8ff3fa2e | 142 | |
143 | class StoreRootEngine : public AsyncEngine | |
144 | { | |
145 | ||
146 | public: | |
147 | int checkEvents(int timeout) | |
148 | { | |
149 | Store::Root().callback(); | |
150 | return EVENT_IDLE; | |
151 | }; | |
152 | }; | |
153 | ||
9688b0ae | 154 | class SignalEngine: public AsyncEngine |
a553a5a3 | 155 | { |
156 | ||
157 | public: | |
9688b0ae | 158 | SignalEngine(EventLoop &loop) : loop(loop) {} |
159 | virtual int checkEvents(int timeout); | |
a553a5a3 | 160 | |
161 | private: | |
162 | static void StopEventLoop(void * data) | |
163 | { | |
9688b0ae | 164 | static_cast<SignalEngine *>(data)->loop.stop(); |
a553a5a3 | 165 | } |
166 | ||
9688b0ae | 167 | void doShutdown(time_t wait); |
168 | ||
a553a5a3 | 169 | EventLoop &loop; |
170 | }; | |
171 | ||
9688b0ae | 172 | int |
173 | SignalEngine::checkEvents(int timeout) | |
a553a5a3 | 174 | { |
9688b0ae | 175 | PROF_start(SignalEngine_checkEvents); |
fc68f6b1 | 176 | |
a553a5a3 | 177 | if (do_reconfigure) { |
178 | mainReconfigure(); | |
179 | do_reconfigure = 0; | |
a553a5a3 | 180 | } else if (do_rotate) { |
181 | mainRotate(); | |
182 | do_rotate = 0; | |
183 | } else if (do_shutdown) { | |
9688b0ae | 184 | doShutdown(do_shutdown > 0 ? (int) Config.shutdownLifetime : 0); |
a553a5a3 | 185 | do_shutdown = 0; |
9688b0ae | 186 | } |
a553a5a3 | 187 | |
9688b0ae | 188 | PROF_stop(SignalEngine_checkEvents); |
189 | return EVENT_IDLE; | |
190 | } | |
a553a5a3 | 191 | |
9688b0ae | 192 | void |
193 | SignalEngine::doShutdown(time_t wait) | |
194 | { | |
195 | debugs(1, 1, "Preparing for shutdown after " << statCounter.client_http.requests << " requests"); | |
196 | debugs(1, 1, "Waiting " << wait << " seconds for active connections to finish"); | |
8ff3fa2e | 197 | |
9688b0ae | 198 | shutting_down = 1; |
199 | ||
200 | #if USE_WIN32_SERVICE | |
201 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, (wait + 1) * 1000); | |
202 | #endif | |
203 | ||
204 | serverConnectionsClose(); | |
205 | eventAdd("SquidShutdown", &StopEventLoop, this, (double) (wait + 1), 1, false); | |
a553a5a3 | 206 | } |
207 | ||
b8d8561b | 208 | static void |
0673c0ba | 209 | usage(void) |
ccff9601 | 210 | { |
0ee4272b | 211 | fprintf(stderr, |
0e657244 | 212 | #if USE_WIN32_SERVICE |
5e6d4736 | 213 | "Usage: %s [-cdhirvzCDFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal] [-n name] [-O CommandLine]\n" |
0e657244 | 214 | #else |
5e6d4736 | 215 | "Usage: %s [-cdhvzCDFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal]\n" |
0e657244 | 216 | #endif |
62e76326 | 217 | " -a port Specify HTTP port number (default: %d).\n" |
218 | " -d level Write debugging to stderr also.\n" | |
219 | " -f file Use given config-file instead of\n" | |
220 | " %s\n" | |
221 | " -h Print help message.\n" | |
0e657244 | 222 | #if USE_WIN32_SERVICE |
223 | " -i Installs as a Windows Service (see -n option).\n" | |
224 | #endif | |
62e76326 | 225 | " -k reconfigure|rotate|shutdown|interrupt|kill|debug|check|parse\n" |
226 | " Parse configuration file, then send signal to \n" | |
227 | " running copy (except -k parse) and exit.\n" | |
0e657244 | 228 | #if USE_WIN32_SERVICE |
229 | " -n name Specify Windows Service name to use for service operations\n" | |
230 | " default is: " _WIN_SQUID_DEFAULT_SERVICE_NAME ".\n" | |
231 | " -r Removes a Windows Service (see -n option).\n" | |
232 | #endif | |
5e6d4736 | 233 | " -s | -l facility\n" |
234 | " Enable logging to syslog.\n" | |
62e76326 | 235 | " -u port Specify ICP port number (default: %d), disable with 0.\n" |
236 | " -v Print version.\n" | |
237 | " -z Create swap directories\n" | |
238 | " -C Do not catch fatal signals.\n" | |
239 | " -D Disable initial DNS tests.\n" | |
240 | " -F Don't serve any requests until store is rebuilt.\n" | |
241 | " -N No daemon mode.\n" | |
0e657244 | 242 | #if USE_WIN32_SERVICE |
243 | " -O options\n" | |
244 | " Set Windows Service Command line options in Registry.\n" | |
245 | #endif | |
62e76326 | 246 | " -R Do not set REUSEADDR on port.\n" |
247 | " -S Double-check swap during rebuild.\n" | |
248 | " -V Virtual host httpd-accelerator.\n" | |
249 | " -X Force full debugging.\n" | |
250 | " -Y Only return UDP_HIT or UDP_MISS_NOFETCH during fast reload.\n", | |
7dbca7a4 | 251 | APP_SHORTNAME, CACHE_HTTP_PORT, DefaultConfigFile, CACHE_ICP_PORT); |
77ffc99f | 252 | exit(1); |
ccff9601 | 253 | } |
254 | ||
63be0a78 | 255 | /** |
256 | * Parse the parameters received via command line interface. | |
257 | * | |
258 | \param argc[in] Number of options received on command line | |
259 | \param argv[in] List of parameters received on command line | |
260 | */ | |
b8d8561b | 261 | static void |
262 | mainParseOptions(int argc, char *argv[]) | |
090089c4 | 263 | { |
090089c4 | 264 | extern char *optarg; |
4d64d74a | 265 | int c; |
090089c4 | 266 | |
0e657244 | 267 | #if USE_WIN32_SERVICE |
5e6d4736 | 268 | while ((c = getopt(argc, argv, "CDFNO:RSVYXa:d:f:hik:m::n:rsl:u:vz?")) != -1) |
0e657244 | 269 | #else |
05f1c52c | 270 | while ((c = getopt(argc, argv, "CDFNRSYXa:d:f:hk:m::sl:u:vz?")) != -1) |
0e657244 | 271 | #endif |
9b7292ce | 272 | { |
273 | ||
274 | switch (c) | |
275 | { | |
62e76326 | 276 | |
277 | case 'C': | |
63be0a78 | 278 | /** \par C |
279 | * Unset/disabel global option for catchign signals. opt_catch_signals */ | |
62e76326 | 280 | opt_catch_signals = 0; |
281 | break; | |
282 | ||
283 | case 'D': | |
63be0a78 | 284 | /** \par D |
285 | * Unset/disable global option for optional DNS tests. opt_dns_tests */ | |
62e76326 | 286 | opt_dns_tests = 0; |
287 | break; | |
288 | ||
289 | case 'F': | |
63be0a78 | 290 | /** \par F |
291 | * Set global option for foreground rebuild. opt_foreground_rebuild */ | |
62e76326 | 292 | opt_foreground_rebuild = 1; |
293 | break; | |
294 | ||
295 | case 'N': | |
63be0a78 | 296 | /** \par N |
297 | * Set global option for 'no_daemon' mode. opt_no_daemon */ | |
62e76326 | 298 | opt_no_daemon = 1; |
299 | break; | |
63be0a78 | 300 | |
0e657244 | 301 | #if USE_WIN32_SERVICE |
302 | ||
303 | case 'O': | |
63be0a78 | 304 | /** \par O |
305 | * Set global option. opt_command_lin and WIN32_Command_Line */ | |
0e657244 | 306 | opt_command_line = 1; |
307 | WIN32_Command_Line = xstrdup(optarg); | |
308 | break; | |
309 | #endif | |
62e76326 | 310 | |
311 | case 'R': | |
63be0a78 | 312 | /** \par R |
313 | * Unset/disable global option opt_reuseaddr */ | |
62e76326 | 314 | opt_reuseaddr = 0; |
315 | break; | |
316 | ||
317 | case 'S': | |
63be0a78 | 318 | /** \par S |
319 | * Set global option opt_store_doublecheck */ | |
62e76326 | 320 | opt_store_doublecheck = 1; |
321 | break; | |
322 | ||
62e76326 | 323 | case 'X': |
63be0a78 | 324 | /** \par X |
325 | * Force full debugging */ | |
37296f4c | 326 | Debug::parseOptions("debug_options ALL,9"); |
327 | Config.onoff.debug_override_X = 1; | |
62e76326 | 328 | sigusr2_handle(SIGUSR2); |
62e76326 | 329 | break; |
330 | ||
331 | case 'Y': | |
63be0a78 | 332 | /** \par Y |
333 | * Set global option opt_reload_hit_only */ | |
62e76326 | 334 | opt_reload_hit_only = 1; |
62e76326 | 335 | break; |
336 | ||
0e657244 | 337 | #if USE_WIN32_SERVICE |
338 | ||
339 | case 'i': | |
63be0a78 | 340 | /** \par i |
341 | * Set global option opt_install_service (to TRUE) */ | |
0e657244 | 342 | opt_install_service = TRUE; |
0e657244 | 343 | break; |
0e657244 | 344 | #endif |
345 | ||
62e76326 | 346 | case 'a': |
63be0a78 | 347 | /** \par a |
348 | * Add optional HTTP port as given following the option */ | |
62e76326 | 349 | add_http_port(optarg); |
62e76326 | 350 | break; |
351 | ||
352 | case 'd': | |
63be0a78 | 353 | /** \par d |
354 | * Set global option opt_debug_stderr to the number given follwoign the option */ | |
62e76326 | 355 | opt_debug_stderr = atoi(optarg); |
62e76326 | 356 | break; |
357 | ||
358 | case 'f': | |
63be0a78 | 359 | /** \par f |
360 | * Load the file given instead of the default squid.conf. */ | |
62e76326 | 361 | xfree(ConfigFile); |
62e76326 | 362 | ConfigFile = xstrdup(optarg); |
62e76326 | 363 | break; |
364 | ||
365 | case 'k': | |
63be0a78 | 366 | /** \par k |
367 | * Run the administrative action given following the option */ | |
fc68f6b1 | 368 | |
63be0a78 | 369 | /** \li When its an unknown option display the usage help. */ |
62e76326 | 370 | if ((int) strlen(optarg) < 1) |
371 | usage(); | |
372 | ||
373 | if (!strncmp(optarg, "reconfigure", strlen(optarg))) | |
63be0a78 | 374 | /** \li On reconfigure send SIGHUP. */ |
62e76326 | 375 | opt_send_signal = SIGHUP; |
376 | else if (!strncmp(optarg, "rotate", strlen(optarg))) | |
63be0a78 | 377 | /** \li On rotate send SIGQUIT or SIGUSR1. */ |
7e7a0442 | 378 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 379 | |
380 | opt_send_signal = SIGQUIT; | |
381 | ||
e3175d1f | 382 | #else |
62e76326 | 383 | |
384 | opt_send_signal = SIGUSR1; | |
385 | ||
e3175d1f | 386 | #endif |
62e76326 | 387 | |
388 | else if (!strncmp(optarg, "debug", strlen(optarg))) | |
63be0a78 | 389 | /** \li On debug send SIGTRAP or SIGUSR2. */ |
7e7a0442 | 390 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 391 | |
392 | opt_send_signal = SIGTRAP; | |
393 | ||
e3175d1f | 394 | #else |
62e76326 | 395 | |
396 | opt_send_signal = SIGUSR2; | |
397 | ||
398 | #endif | |
399 | ||
400 | else if (!strncmp(optarg, "shutdown", strlen(optarg))) | |
63be0a78 | 401 | /** \li On shutdown send SIGTERM. */ |
62e76326 | 402 | opt_send_signal = SIGTERM; |
403 | else if (!strncmp(optarg, "interrupt", strlen(optarg))) | |
63be0a78 | 404 | /** \li On interrupt send SIGINT. */ |
62e76326 | 405 | opt_send_signal = SIGINT; |
406 | else if (!strncmp(optarg, "kill", strlen(optarg))) | |
63be0a78 | 407 | /** \li On kill send SIGKILL. */ |
62e76326 | 408 | opt_send_signal = SIGKILL; |
ae1feb30 | 409 | |
410 | #ifdef SIGTTIN | |
411 | ||
412 | else if (!strncmp(optarg, "restart", strlen(optarg))) | |
63be0a78 | 413 | /** \li On restart send SIGTTIN. (exit and restart by parent) */ |
414 | opt_send_signal = SIGTTIN; | |
ae1feb30 | 415 | |
416 | #endif | |
417 | ||
62e76326 | 418 | else if (!strncmp(optarg, "check", strlen(optarg))) |
63be0a78 | 419 | /** \li On check send 0 / SIGNULL. */ |
62e76326 | 420 | opt_send_signal = 0; /* SIGNULL */ |
421 | else if (!strncmp(optarg, "parse", strlen(optarg))) | |
63be0a78 | 422 | /** \li On parse set global flag to re-parse the config file only. */ |
423 | opt_parse_cfg_only = 1; | |
62e76326 | 424 | else |
425 | usage(); | |
426 | ||
427 | break; | |
428 | ||
429 | case 'm': | |
63be0a78 | 430 | /** \par m |
431 | * Set global malloc_debug_level to the value given following the option. | |
432 | * if none is given it toggles the xmalloc_trace option on/off */ | |
62e76326 | 433 | if (optarg) { |
30a4f2a8 | 434 | #if MALLOC_DBG |
fc68f6b1 | 435 | malloc_debug_level = atoi(optarg); |
30a4f2a8 | 436 | #else |
fc68f6b1 | 437 | fatal("Need to add -DMALLOC_DBG when compiling to use -mX option"); |
33ab18e8 | 438 | #endif |
62e76326 | 439 | |
440 | } else { | |
33ab18e8 | 441 | #if XMALLOC_TRACE |
62e76326 | 442 | xmalloc_trace = !xmalloc_trace; |
33ab18e8 | 443 | #else |
62e76326 | 444 | fatal("Need to configure --enable-xmalloc-debug-trace to use -m option"); |
30a4f2a8 | 445 | #endif |
62e76326 | 446 | } |
d9e7ee1f | 447 | break; |
d9e7ee1f | 448 | |
0e657244 | 449 | #if USE_WIN32_SERVICE |
450 | ||
451 | case 'n': | |
63be0a78 | 452 | /** \par n |
453 | * Set global option opt_signal_service (to TRUE). | |
454 | * Stores the additional parameter given in global WIN32_Service_name */ | |
0e657244 | 455 | xfree(WIN32_Service_name); |
456 | ||
457 | WIN32_Service_name = xstrdup(optarg); | |
458 | ||
459 | opt_signal_service = TRUE; | |
460 | ||
461 | break; | |
462 | ||
463 | case 'r': | |
63be0a78 | 464 | /** \par r |
465 | * Set global option opt_remove_service (to TRUE) */ | |
0e657244 | 466 | opt_remove_service = TRUE; |
467 | ||
468 | break; | |
469 | ||
470 | #endif | |
471 | ||
5e6d4736 | 472 | case 'l': |
63be0a78 | 473 | /** \par l |
474 | * Stores the syslog facility name in global opt_syslog_facility | |
475 | * then performs actions for -s option. */ | |
5e6d4736 | 476 | opt_syslog_facility = xstrdup(optarg); |
477 | ||
62e76326 | 478 | case 's': |
63be0a78 | 479 | /** \par s |
480 | * Initialize the syslog for output */ | |
c307aec3 | 481 | #if HAVE_SYSLOG |
62e76326 | 482 | |
5e6d4736 | 483 | _db_set_syslog(opt_syslog_facility); |
0e657244 | 484 | |
62e76326 | 485 | break; |
0e657244 | 486 | |
c307aec3 | 487 | #else |
62e76326 | 488 | |
489 | fatal("Logging to syslog not available on this platform"); | |
0e657244 | 490 | |
62e76326 | 491 | /* NOTREACHED */ |
492 | #endif | |
493 | ||
494 | case 'u': | |
63be0a78 | 495 | /** \par u |
496 | * Store the ICP port number given in global option icpPortNumOverride | |
497 | * ensuring its a positive number. */ | |
62e76326 | 498 | icpPortNumOverride = atoi(optarg); |
499 | ||
500 | if (icpPortNumOverride < 0) | |
501 | icpPortNumOverride = 0; | |
502 | ||
503 | break; | |
504 | ||
505 | case 'v': | |
63be0a78 | 506 | /** \par v |
507 | * Display squid version and build information. Then exit. */ | |
62e76326 | 508 | printf("Squid Cache: Version %s\nconfigure options: %s\n", version_string, SQUID_CONFIGURE_OPTIONS); |
509 | ||
1a774556 | 510 | #if USE_WIN32_SERVICE |
511 | ||
512 | printf("Compiled as Windows System Service.\n"); | |
513 | ||
514 | #endif | |
515 | ||
62e76326 | 516 | exit(0); |
517 | ||
518 | /* NOTREACHED */ | |
519 | ||
520 | case 'z': | |
63be0a78 | 521 | /** \par z |
522 | * Set global option opt_debug_stderr and opt_create_swap_dirs */ | |
930dea4a | 523 | opt_debug_stderr = 1; |
524 | ||
62e76326 | 525 | opt_create_swap_dirs = 1; |
526 | ||
527 | break; | |
528 | ||
63be0a78 | 529 | case 'h': |
530 | ||
62e76326 | 531 | case '?': |
532 | ||
533 | default: | |
63be0a78 | 534 | /** \par h,?, or unknown |
535 | * \copydoc usage() */ | |
62e76326 | 536 | usage(); |
537 | ||
538 | break; | |
539 | } | |
9b7292ce | 540 | |
090089c4 | 541 | } |
4d64d74a | 542 | } |
090089c4 | 543 | |
7a2f978b | 544 | /* ARGSUSED */ |
b293c4d8 | 545 | void |
9b7292ce | 546 | rotate_logs(int sig) |
547 | { | |
5cd39a10 | 548 | do_rotate = 1; |
a50bfe93 | 549 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 550 | #if !HAVE_SIGACTION |
62e76326 | 551 | |
30a4f2a8 | 552 | signal(sig, rotate_logs); |
553 | #endif | |
a50bfe93 | 554 | #endif |
30a4f2a8 | 555 | } |
556 | ||
7a2f978b | 557 | /* ARGSUSED */ |
b293c4d8 | 558 | void |
9b7292ce | 559 | reconfigure(int sig) |
560 | { | |
5cd39a10 | 561 | do_reconfigure = 1; |
a50bfe93 | 562 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 563 | #if !HAVE_SIGACTION |
62e76326 | 564 | |
30a4f2a8 | 565 | signal(sig, reconfigure); |
566 | #endif | |
a50bfe93 | 567 | #endif |
30a4f2a8 | 568 | } |
569 | ||
b8d8561b | 570 | void |
9b7292ce | 571 | shut_down(int sig) |
572 | { | |
2681d383 | 573 | do_shutdown = sig == SIGINT ? -1 : 1; |
ae1feb30 | 574 | #ifdef SIGTTIN |
575 | ||
576 | if (SIGTTIN == sig) | |
577 | shutdown_status = 1; | |
578 | ||
579 | #endif | |
a50bfe93 | 580 | #ifndef _SQUID_MSWIN_ |
cadc2d55 | 581 | #ifdef KILL_PARENT_OPT |
62e76326 | 582 | |
5cd39a10 | 583 | if (getppid() > 1) { |
36584579 | 584 | debugs(1, 1, "Killing RunCache, pid " << getppid()); |
62e76326 | 585 | |
586 | if (kill(getppid(), sig) < 0) | |
36584579 | 587 | debugs(1, 1, "kill " << getppid() << ": " << xstrerror()); |
88738790 | 588 | } |
62e76326 | 589 | |
cadc2d55 | 590 | #endif |
6e40f263 | 591 | #if SA_RESETHAND == 0 |
592 | signal(SIGTERM, SIG_DFL); | |
62e76326 | 593 | |
6e40f263 | 594 | signal(SIGINT, SIG_DFL); |
62e76326 | 595 | |
a50bfe93 | 596 | #endif |
6e40f263 | 597 | #endif |
30a4f2a8 | 598 | } |
599 | ||
24382924 | 600 | static void |
9b7292ce | 601 | serverConnectionsOpen(void) |
602 | { | |
d193a436 | 603 | clientOpenListenSockets(); |
15df8349 | 604 | icpConnectionsOpen(); |
ace287ee | 605 | #if USE_HTCP |
62e76326 | 606 | |
ace287ee | 607 | htcpInit(); |
608 | #endif | |
678c6099 | 609 | #ifdef SQUID_SNMP |
62e76326 | 610 | |
3265e68d | 611 | snmpConnectionOpen(); |
320e9f36 | 612 | #endif |
eb824054 | 613 | #if USE_WCCP |
62e76326 | 614 | |
320e9f36 | 615 | wccpConnectionOpen(); |
2bbd722b | 616 | #endif |
62e76326 | 617 | |
0b0cfcf2 | 618 | #if USE_WCCPv2 |
619 | ||
620 | wccp2ConnectionOpen(); | |
621 | #endif | |
622 | ||
5ecceaa4 | 623 | clientdbInit(); |
cc192b50 | 624 | icmpEngine.Open(); |
67508012 | 625 | netdbInit(); |
f899fac1 | 626 | asnInit(); |
b0dd28ba | 627 | ACL::Initialize(); |
85034133 | 628 | peerSelectInit(); |
afd88fbe | 629 | #if USE_CARP |
62e76326 | 630 | |
afd88fbe | 631 | carpInit(); |
632 | #endif | |
5f3f8d0e | 633 | } |
634 | ||
b8d8561b | 635 | void |
9b7292ce | 636 | serverConnectionsClose(void) |
637 | { | |
0a5a8601 | 638 | assert(shutting_down || reconfiguring); |
c0fbae16 | 639 | clientHttpConnectionsClose(); |
17e6c0a1 | 640 | icpConnectionShutdown(); |
72549e05 | 641 | #if USE_HTCP |
62e76326 | 642 | |
72549e05 | 643 | htcpSocketShutdown(); |
644 | #endif | |
62e76326 | 645 | |
cc192b50 | 646 | icmpEngine.Close(); |
15df8349 | 647 | #ifdef SQUID_SNMP |
62e76326 | 648 | |
17e6c0a1 | 649 | snmpConnectionShutdown(); |
320e9f36 | 650 | #endif |
eb824054 | 651 | #if USE_WCCP |
62e76326 | 652 | |
0b0cfcf2 | 653 | wccpConnectionClose(); |
654 | #endif | |
655 | #if USE_WCCPv2 | |
656 | ||
657 | wccp2ConnectionClose(); | |
15df8349 | 658 | #endif |
62e76326 | 659 | |
4bac8de8 | 660 | asnFreeMemory(); |
5f3f8d0e | 661 | } |
662 | ||
b8d8561b | 663 | static void |
9b7292ce | 664 | mainReconfigure(void) |
665 | { | |
bf8fe701 | 666 | debugs(1, 1, "Reconfiguring Squid Cache (version " << version_string << ")..."); |
5cd39a10 | 667 | reconfiguring = 1; |
0ffd22bc | 668 | /* Already called serverConnectionsClose and ipcacheShutdownServers() */ |
15df8349 | 669 | serverConnectionsClose(); |
17e6c0a1 | 670 | icpConnectionClose(); |
72549e05 | 671 | #if USE_HTCP |
62e76326 | 672 | |
72549e05 | 673 | htcpSocketClose(); |
674 | #endif | |
17e6c0a1 | 675 | #ifdef SQUID_SNMP |
62e76326 | 676 | |
17e6c0a1 | 677 | snmpConnectionClose(); |
320e9f36 | 678 | #endif |
3c573763 | 679 | #if USE_DNSSERVERS |
62e76326 | 680 | |
74addf6c | 681 | dnsShutdown(); |
3c573763 | 682 | #else |
62e76326 | 683 | |
7b724b86 | 684 | idnsShutdown(); |
eb824054 | 685 | #endif |
62e76326 | 686 | |
74addf6c | 687 | redirectShutdown(); |
688 | authenticateShutdown(); | |
d9572179 | 689 | externalAclShutdown(); |
2db68ce5 | 690 | storeDirCloseSwapLogs(); |
2e923080 | 691 | storeLogClose(); |
692 | accessLogClose(); | |
693 | useragentLogClose(); | |
694 | refererCloseLog(); | |
c68e9c6b | 695 | errorClean(); |
3aa4adbc | 696 | enter_suid(); /* root to read config file */ |
dd9b1081 | 697 | parseConfigFile(ConfigFile); |
c642c141 | 698 | setUmask(Config.umask); |
97244680 | 699 | Mem::Report(); |
3aa4adbc | 700 | setEffectiveUser(); |
b6f794d6 | 701 | _db_init(Config.Log.log, Config.debugOptions); |
429fdbec | 702 | ipcache_restart(); /* clear stuck entries */ |
94439e4e | 703 | authenticateUserCacheRestart(); /* clear stuck ACL entries */ |
429fdbec | 704 | fqdncache_restart(); /* sigh, fqdncache too */ |
0e70aa1e | 705 | parseEtcHosts(); |
53ad48e6 | 706 | errorInitialize(); /* reload error pages */ |
2e923080 | 707 | accessLogInit(); |
708 | storeLogOpen(); | |
709 | useragentOpenLog(); | |
710 | refererOpenLog(); | |
3c573763 | 711 | #if USE_DNSSERVERS |
62e76326 | 712 | |
74addf6c | 713 | dnsInit(); |
3c573763 | 714 | #else |
62e76326 | 715 | |
7b724b86 | 716 | idnsInit(); |
eb824054 | 717 | #endif |
62e76326 | 718 | |
74addf6c | 719 | redirectInit(); |
e6ccf245 | 720 | authenticateInit(&Config.authConfiguration); |
d9572179 | 721 | externalAclInit(); |
1f38f50a | 722 | #if USE_WCCP |
62e76326 | 723 | |
1f38f50a | 724 | wccpInit(); |
725 | #endif | |
0b0cfcf2 | 726 | #if USE_WCCPv2 |
727 | ||
728 | wccp2Init(); | |
729 | #endif | |
62e76326 | 730 | |
0ffd22bc | 731 | serverConnectionsOpen(); |
9c2e9b50 | 732 | |
3ee2b4f8 | 733 | neighbors_init(); |
2ea8b120 | 734 | neighborsRegisterWithCacheManager(); |
9c2e9b50 | 735 | |
2db68ce5 | 736 | storeDirOpenSwapLogs(); |
9c2e9b50 | 737 | |
9c021a38 | 738 | mimeInit(Config.mimeTablePathname); |
9c2e9b50 | 739 | |
926375e6 | 740 | if (Config.onoff.announce) { |
741 | if (!eventFind(start_announce, NULL)) | |
742 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
743 | } else { | |
744 | if (eventFind(start_announce, NULL)) | |
745 | eventDelete(start_announce, NULL); | |
746 | } | |
747 | ||
b8890359 | 748 | writePidFile(); /* write PID file */ |
9c2e9b50 | 749 | |
bf8fe701 | 750 | debugs(1, 1, "Ready to serve requests."); |
9c2e9b50 | 751 | |
5cd39a10 | 752 | reconfiguring = 0; |
753 | } | |
754 | ||
755 | static void | |
9b7292ce | 756 | mainRotate(void) |
757 | { | |
cc192b50 | 758 | icmpEngine.Close(); |
3c573763 | 759 | #if USE_DNSSERVERS |
62e76326 | 760 | |
e40aa8da | 761 | dnsShutdown(); |
3c573763 | 762 | #endif |
62e76326 | 763 | |
e40aa8da | 764 | redirectShutdown(); |
765 | authenticateShutdown(); | |
d9572179 | 766 | externalAclShutdown(); |
5cd39a10 | 767 | _db_rotate_log(); /* cache.log */ |
768 | storeDirWriteCleanLogs(1); | |
769 | storeLogRotate(); /* store.log */ | |
770 | accessLogRotate(); /* access.log */ | |
771 | useragentRotateLog(); /* useragent.log */ | |
fd2c5549 | 772 | refererRotateLog(); /* referer.log */ |
225644d7 | 773 | #if WIP_FWD_LOG |
62e76326 | 774 | |
225644d7 | 775 | fwdLogRotate(); |
776 | #endif | |
62e76326 | 777 | |
cc192b50 | 778 | icmpEngine.Open(); |
3c573763 | 779 | #if USE_DNSSERVERS |
62e76326 | 780 | |
e40aa8da | 781 | dnsInit(); |
3c573763 | 782 | #endif |
62e76326 | 783 | |
e40aa8da | 784 | redirectInit(); |
e6ccf245 | 785 | authenticateInit(&Config.authConfiguration); |
d9572179 | 786 | externalAclInit(); |
5f3f8d0e | 787 | } |
788 | ||
067bea91 | 789 | static void |
9b7292ce | 790 | setEffectiveUser(void) |
791 | { | |
fc68f6b1 | 792 | keepCapabilities(); |
85407535 | 793 | leave_suid(); /* Run as non privilegied user */ |
cd377065 | 794 | #ifdef _SQUID_OS2_ |
62e76326 | 795 | |
cd377065 | 796 | return; |
797 | #endif | |
62e76326 | 798 | |
85407535 | 799 | if (geteuid() == 0) { |
bf8fe701 | 800 | debugs(0, 0, "Squid is not safe to run as root! If you must"); |
801 | debugs(0, 0, "start Squid as root, then you must configure"); | |
802 | debugs(0, 0, "it to run as a non-priveledged user with the"); | |
803 | debugs(0, 0, "'cache_effective_user' option in the config file."); | |
62e76326 | 804 | fatal("Don't run Squid as root, set 'cache_effective_user'!"); |
85407535 | 805 | } |
806 | } | |
807 | ||
b6a2f15e | 808 | static void |
9b7292ce | 809 | mainSetCwd(void) |
810 | { | |
4a504376 | 811 | char pathbuf[MAXPATHLEN]; |
62e76326 | 812 | |
b6a2f15e | 813 | if (Config.coredump_dir) { |
62e76326 | 814 | if (0 == strcmp("none", Config.coredump_dir)) { |
815 | (void) 0; | |
816 | } else if (chdir(Config.coredump_dir) == 0) { | |
bf8fe701 | 817 | debugs(0, 1, "Set Current Directory to " << Config.coredump_dir); |
62e76326 | 818 | return; |
819 | } else { | |
bf8fe701 | 820 | debugs(50, 0, "chdir: " << Config.coredump_dir << ": " << xstrerror()); |
62e76326 | 821 | } |
b6a2f15e | 822 | } |
62e76326 | 823 | |
02e8115e | 824 | /* If we don't have coredump_dir or couldn't cd there, report current dir */ |
4a504376 | 825 | if (getcwd(pathbuf, MAXPATHLEN)) { |
bf8fe701 | 826 | debugs(0, 1, "Current Directory is " << pathbuf); |
4a504376 | 827 | } else { |
bf8fe701 | 828 | debugs(50, 0, "WARNING: Can't find current directory, getcwd: " << xstrerror()); |
4a504376 | 829 | } |
b6a2f15e | 830 | } |
831 | ||
b67e2c8c | 832 | #if DELAY_POOLS |
833 | #include "DelayPools.h" | |
834 | #endif | |
835 | ||
b8d8561b | 836 | static void |
9b7292ce | 837 | mainInitialize(void) |
838 | { | |
efd900cb | 839 | /* chroot if configured to run inside chroot */ |
62e76326 | 840 | |
64b0a10d | 841 | if (Config.chroot_dir && (chroot(Config.chroot_dir) != 0 || chdir("/") != 0)) { |
62e76326 | 842 | fatal("failed to chroot"); |
efd900cb | 843 | } |
62e76326 | 844 | |
1758c627 | 845 | if (opt_catch_signals) { |
62e76326 | 846 | squid_signal(SIGSEGV, death, SA_NODEFER | SA_RESETHAND); |
847 | squid_signal(SIGBUS, death, SA_NODEFER | SA_RESETHAND); | |
44f99671 | 848 | } |
62e76326 | 849 | |
30a4f2a8 | 850 | squid_signal(SIGPIPE, SIG_IGN, SA_RESTART); |
851 | squid_signal(SIGCHLD, sig_child, SA_NODEFER | SA_RESTART); | |
44f99671 | 852 | |
85407535 | 853 | setEffectiveUser(); |
62e76326 | 854 | |
30a4f2a8 | 855 | if (icpPortNumOverride != 1) |
62e76326 | 856 | Config.Port.icp = (u_short) icpPortNumOverride; |
30a4f2a8 | 857 | |
b6f794d6 | 858 | _db_init(Config.Log.log, Config.debugOptions); |
62e76326 | 859 | |
5c5783a2 | 860 | fd_open(fileno(debug_log), FD_LOG, Config.Log.log); |
62e76326 | 861 | |
71a17702 | 862 | #if MEM_GEN_TRACE |
62e76326 | 863 | |
71a17702 | 864 | log_trace_init("/tmp/squid.alloc"); |
62e76326 | 865 | |
71a17702 | 866 | #endif |
62e76326 | 867 | |
bf8fe701 | 868 | debugs(1, 0, "Starting Squid Cache version " << version_string << " for " << CONFIG_HOST_TYPE << "..."); |
62e76326 | 869 | |
ec4daaa5 | 870 | #ifdef _SQUID_WIN32_ |
b293c4d8 | 871 | |
872 | if (WIN32_run_mode == _WIN_SQUID_RUN_MODE_SERVICE) { | |
bf8fe701 | 873 | debugs(1, 0, "Running as " << WIN32_Service_name << " Windows System Service on " << WIN32_OS_string); |
874 | debugs(1, 0, "Service command line is: " << WIN32_Service_Command_Line); | |
b293c4d8 | 875 | } else |
bf8fe701 | 876 | debugs(1, 0, "Running on " << WIN32_OS_string); |
b293c4d8 | 877 | |
878 | #endif | |
879 | ||
36584579 | 880 | debugs(1, 1, "Process ID " << getpid()); |
62e76326 | 881 | |
bf8fe701 | 882 | debugs(1, 1, "With " << Squid_MaxFD << " file descriptors available"); |
5f3f8d0e | 883 | |
6c1962dd | 884 | #ifdef _SQUID_MSWIN_ |
885 | ||
bf8fe701 | 886 | debugs(1, 1, "With " << _getmaxstdio() << " CRT stdio descriptors available"); |
6c1962dd | 887 | |
888 | if (WIN32_Socks_initialized) | |
bf8fe701 | 889 | debugs(1, 1, "Windows sockets initialized"); |
6c1962dd | 890 | |
babd1fd5 | 891 | if (WIN32_OS_version > _WIN_OS_WINNT) { |
892 | WIN32_IpAddrChangeMonitorInit(); | |
893 | } | |
894 | ||
6c1962dd | 895 | #endif |
896 | ||
9f75c559 | 897 | if (!configured_once) |
62e76326 | 898 | disk_init(); /* disk_init must go before ipcache_init() */ |
899 | ||
5f3f8d0e | 900 | ipcache_init(); |
62e76326 | 901 | |
f88bb09c | 902 | fqdncache_init(); |
62e76326 | 903 | |
0e70aa1e | 904 | parseEtcHosts(); |
62e76326 | 905 | |
3c573763 | 906 | #if USE_DNSSERVERS |
62e76326 | 907 | |
74addf6c | 908 | dnsInit(); |
62e76326 | 909 | |
3c573763 | 910 | #else |
62e76326 | 911 | |
7b724b86 | 912 | idnsInit(); |
62e76326 | 913 | |
eb824054 | 914 | #endif |
62e76326 | 915 | |
74addf6c | 916 | redirectInit(); |
62e76326 | 917 | |
e6ccf245 | 918 | authenticateInit(&Config.authConfiguration); |
62e76326 | 919 | |
d9572179 | 920 | externalAclInit(); |
62e76326 | 921 | |
b012353a | 922 | useragentOpenLog(); |
62e76326 | 923 | |
fd2c5549 | 924 | refererOpenLog(); |
62e76326 | 925 | |
2ac76861 | 926 | httpHeaderInitModule(); /* must go before any header processing (e.g. the one in errorInitialize) */ |
62e76326 | 927 | |
2246b732 | 928 | httpReplyInitModule(); /* must go before accepting replies */ |
62e76326 | 929 | |
9b312a19 | 930 | errorInitialize(); |
62e76326 | 931 | |
7a2f978b | 932 | accessLogInit(); |
62e76326 | 933 | |
3898f57f | 934 | #if USE_IDENT |
62e76326 | 935 | |
05832ae1 | 936 | identInit(); |
62e76326 | 937 | |
3898f57f | 938 | #endif |
5e14bf6d | 939 | #ifdef SQUID_SNMP |
62e76326 | 940 | |
5e14bf6d | 941 | snmpInit(); |
62e76326 | 942 | |
5e14bf6d | 943 | #endif |
30a4f2a8 | 944 | #if MALLOC_DBG |
62e76326 | 945 | |
5f3f8d0e | 946 | malloc_debug(0, malloc_debug_level); |
62e76326 | 947 | |
5f3f8d0e | 948 | #endif |
949 | ||
dbe4fd8e | 950 | if (!configured_once) { |
a3d0a19d | 951 | #if USE_UNLINKD |
62e76326 | 952 | unlinkdInit(); |
953 | #endif | |
954 | ||
955 | urlInitialize(); | |
62e76326 | 956 | statInit(); |
957 | storeInit(); | |
958 | mainSetCwd(); | |
959 | /* after this point we want to see the mallinfo() output */ | |
960 | do_mallinfo = 1; | |
961 | mimeInit(Config.mimeTablePathname); | |
62e76326 | 962 | refreshInit(); |
0d7e5d78 | 963 | #if DELAY_POOLS |
62e76326 | 964 | |
965 | DelayPools::Init(); | |
0d7e5d78 | 966 | #endif |
62e76326 | 967 | |
b6b6f466 | 968 | FwdState::initModule(); |
62ee09ca | 969 | /* register the modules in the cache manager menus */ |
d62a240c FC |
970 | accessLogRegisterWithCacheManager(); |
971 | asnRegisterWithCacheManager(); | |
15fab853 | 972 | authenticateRegisterWithCacheManager(&Config.authConfiguration); |
62ee09ca | 973 | #if USE_CARP |
974 | ||
1b8a5f51 | 975 | carpRegisterWithCacheManager(); |
62ee09ca | 976 | #endif |
977 | ||
a08f1b5a | 978 | cbdataRegisterWithCacheManager(); |
62ee09ca | 979 | /* These use separate calls so that the comm loops can eventually |
980 | * coexist. | |
981 | */ | |
982 | #ifdef USE_EPOLL | |
983 | ||
dbeed9ea | 984 | commEPollRegisterWithCacheManager(); |
62ee09ca | 985 | #endif |
986 | #ifdef USE_KQUEUE | |
987 | ||
706744c3 | 988 | commKQueueRegisterWithCacheManager(); |
62ee09ca | 989 | #endif |
990 | #ifdef USE_POLL | |
991 | ||
edfab338 | 992 | commPollRegisterWithCacheManager(); |
62ee09ca | 993 | #endif |
7cdb47bc | 994 | #if defined(USE_SELECT) || defined(USE_SELECT_WIN32) |
62ee09ca | 995 | |
c5108ed5 | 996 | commSelectRegisterWithCacheManager(); |
62ee09ca | 997 | #endif |
998 | ||
c5108ed5 | 999 | clientdbRegisterWithCacheManager(); |
610ee341 | 1000 | #if DELAY_POOLS |
1001 | ||
c83f0bd5 | 1002 | DelayPools::RegisterWithCacheManager(*manager); |
610ee341 | 1003 | #endif |
1004 | ||
15fab853 | 1005 | DiskIOModule::RegisterAllModulesWithCacheManager(); |
62ee09ca | 1006 | #if USE_DNSSERVERS |
1007 | ||
c5108ed5 | 1008 | dnsRegisterWithCacheManager(); |
62ee09ca | 1009 | #endif |
1010 | ||
c83f0bd5 K |
1011 | eventInit(*manager); |
1012 | externalAclRegisterWithCacheManager(*manager); | |
1013 | fqdncacheRegisterWithCacheManager(*manager); | |
1014 | FwdState::RegisterWithCacheManager(*manager); | |
1015 | httpHeaderRegisterWithCacheManager(*manager); | |
5615c096 | 1016 | #if !USE_DNSSERVERS |
1017 | ||
c5108ed5 | 1018 | idnsRegisterWithCacheManager(); |
5615c096 | 1019 | #endif |
1020 | ||
c83f0bd5 K |
1021 | ipcacheRegisterWithCacheManager(*manager); |
1022 | Mem::RegisterWithCacheManager(*manager); | |
1023 | netdbRegisterWitHCacheManager(*manager); | |
15fab853 | 1024 | PconnModule::GetInstance()->registerWithCacheManager(); |
c83f0bd5 K |
1025 | redirectRegisterWithCacheManager(*manager); |
1026 | refreshRegisterWithCacheManager(*manager); | |
1027 | statRegisterWithCacheManager(*manager); | |
1028 | storeDigestRegisterWithCacheManager(*manager); | |
1029 | StoreFileSystem::RegisterAllFsWithCacheManager(*manager); | |
1030 | storeRegisterWithCacheManager(*manager); | |
1031 | storeLogRegisterWithCacheManager(*manager); | |
62ee09ca | 1032 | #if DEBUGSTRINGS |
1033 | ||
15fab853 | 1034 | StringRegistry::Instance().registerWithCacheManager(); |
62ee09ca | 1035 | #endif |
1036 | ||
610ee341 | 1037 | #if USE_XPROF_STATS |
1038 | ||
c83f0bd5 | 1039 | xprofRegisterWithCacheManager(*manager); |
610ee341 | 1040 | #endif |
1041 | ||
5f3f8d0e | 1042 | } |
62e76326 | 1043 | |
1f38f50a | 1044 | #if USE_WCCP |
1045 | wccpInit(); | |
62e76326 | 1046 | |
0b0cfcf2 | 1047 | #endif |
1048 | #if USE_WCCPv2 | |
1049 | ||
1050 | wccp2Init(); | |
1051 | ||
1f38f50a | 1052 | #endif |
62e76326 | 1053 | |
2285407f | 1054 | serverConnectionsOpen(); |
62e76326 | 1055 | |
3ee2b4f8 | 1056 | neighbors_init(); |
fc68f6b1 | 1057 | |
2ea8b120 | 1058 | neighborsRegisterWithCacheManager(); |
62e76326 | 1059 | |
efd900cb | 1060 | if (Config.chroot_dir) |
62e76326 | 1061 | no_suid(); |
1062 | ||
dbe4fd8e | 1063 | if (!configured_once) |
62e76326 | 1064 | writePidFile(); /* write PID file */ |
0a5b9b32 | 1065 | |
7e7a0442 | 1066 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 1067 | |
e3175d1f | 1068 | squid_signal(SIGQUIT, rotate_logs, SA_RESTART); |
62e76326 | 1069 | |
e3175d1f | 1070 | squid_signal(SIGTRAP, sigusr2_handle, SA_RESTART); |
62e76326 | 1071 | |
e3175d1f | 1072 | #else |
62e76326 | 1073 | |
30a4f2a8 | 1074 | squid_signal(SIGUSR1, rotate_logs, SA_RESTART); |
62e76326 | 1075 | |
30a4f2a8 | 1076 | squid_signal(SIGUSR2, sigusr2_handle, SA_RESTART); |
62e76326 | 1077 | |
9fc0b4b8 | 1078 | #endif |
62e76326 | 1079 | |
30a4f2a8 | 1080 | squid_signal(SIGHUP, reconfigure, SA_RESTART); |
62e76326 | 1081 | |
30a4f2a8 | 1082 | squid_signal(SIGTERM, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1083 | |
30a4f2a8 | 1084 | squid_signal(SIGINT, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1085 | |
ae1feb30 | 1086 | #ifdef SIGTTIN |
1087 | ||
1088 | squid_signal(SIGTTIN, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); | |
1089 | ||
1090 | #endif | |
1091 | ||
58a39dc9 | 1092 | memCheckInit(); |
62e76326 | 1093 | |
57afc994 AR |
1094 | #if USE_LOADABLE_MODULES |
1095 | LoadableModulesConfigure(Config.loadable_module_names); | |
1096 | #endif | |
1097 | ||
8f361c50 AR |
1098 | #if USE_ADAPTATION |
1099 | bool enableAdaptation = false; | |
1100 | ||
1101 | // We can remove this dependency on specific adaptation mechanisms | |
1102 | // if we create a generic Registry of such mechanisms. Should we? | |
b958cb0f AR |
1103 | #if ICAP_CLIENT |
1104 | TheICAPConfig.finalize(); // must be after we load modules | |
8f361c50 | 1105 | enableAdaptation = TheICAPConfig.onoff; |
b958cb0f | 1106 | #endif |
8f361c50 AR |
1107 | // same for eCAP |
1108 | ||
1109 | // must be the last adaptation-related finalize | |
1110 | Adaptation::Config::Finalize(enableAdaptation); | |
b958cb0f AR |
1111 | #endif |
1112 | ||
1113 | ||
bf8fe701 | 1114 | debugs(1, 1, "Ready to serve requests."); |
62e76326 | 1115 | |
dbe4fd8e | 1116 | if (!configured_once) { |
c8f4eac4 | 1117 | eventAdd("storeMaintain", Store::Maintain, NULL, 1.0, 1); |
62e76326 | 1118 | |
1119 | if (Config.onoff.announce) | |
1120 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
1121 | ||
1122 | eventAdd("ipcache_purgelru", ipcache_purgelru, NULL, 10.0, 1); | |
1123 | ||
1124 | eventAdd("fqdncache_purgelru", fqdncache_purgelru, NULL, 15.0, 1); | |
1125 | ||
88bfe092 | 1126 | #if USE_XPROF_STATS |
62e76326 | 1127 | |
1128 | eventAdd("cpuProfiling", xprof_event, NULL, 1.0, 1); | |
1129 | ||
88bfe092 | 1130 | #endif |
62e76326 | 1131 | |
1132 | eventAdd("memPoolCleanIdlePools", Mem::CleanIdlePools, NULL, 15.0, 1); | |
f900210a | 1133 | |
1134 | eventAdd("commCheckHalfClosed", commCheckHalfClosed, NULL, 1.0, false); | |
4d7add01 | 1135 | } |
62e76326 | 1136 | |
dbe4fd8e | 1137 | configured_once = 1; |
4d64d74a | 1138 | } |
1139 | ||
6c1962dd | 1140 | #if USE_WIN32_SERVICE |
1141 | /* When USE_WIN32_SERVICE is defined, the main function is placed in win32.cc */ | |
1142 | extern "C" void WINAPI | |
a0aa9e74 | 1143 | SquidWinSvcMain(int argc, char **argv) |
1144 | { | |
1145 | SquidMain(argc, argv); | |
1146 | } | |
1147 | ||
1148 | int | |
1149 | SquidMain(int argc, char **argv) | |
6c1962dd | 1150 | #else |
b8d8561b | 1151 | int |
1152 | main(int argc, char **argv) | |
9b7292ce | 1153 | #endif |
1154 | { | |
a0aa9e74 | 1155 | #ifdef _SQUID_WIN32_ |
1156 | ||
1157 | int WIN32_init_err; | |
1158 | #endif | |
4d64d74a | 1159 | |
a4ba1105 | 1160 | #if HAVE_SBRK |
62e76326 | 1161 | |
9b7292ce | 1162 | sbrk_start = sbrk(0); |
a4ba1105 | 1163 | #endif |
1164 | ||
fb6a61d1 | 1165 | Debug::parseOptions(NULL); |
9b7292ce | 1166 | debug_log = stderr; |
62e76326 | 1167 | |
b9269882 | 1168 | #if defined(SQUID_MAXFD_LIMIT) |
1169 | ||
1170 | if (SQUID_MAXFD_LIMIT < Squid_MaxFD) | |
1171 | Squid_MaxFD = SQUID_MAXFD_LIMIT; | |
1172 | ||
1173 | #endif | |
399e85ea | 1174 | |
ec4daaa5 | 1175 | #ifdef _SQUID_WIN32_ |
6c1962dd | 1176 | |
a0aa9e74 | 1177 | if ((WIN32_init_err = WIN32_Subsystem_Init(&argc, &argv))) |
1178 | return WIN32_init_err; | |
62e76326 | 1179 | |
0e6d05ef | 1180 | #endif |
1181 | ||
9b7292ce | 1182 | /* call mallopt() before anything else */ |
0b29fe44 | 1183 | #if HAVE_MALLOPT |
7328e889 | 1184 | #ifdef M_GRAIN |
9b7292ce | 1185 | /* Round up all sizes to a multiple of this */ |
1186 | mallopt(M_GRAIN, 16); | |
62e76326 | 1187 | |
7328e889 | 1188 | #endif |
1189 | #ifdef M_MXFAST | |
9b7292ce | 1190 | /* biggest size that is considered a small block */ |
1191 | mallopt(M_MXFAST, 256); | |
62e76326 | 1192 | |
7328e889 | 1193 | #endif |
1194 | #ifdef M_NBLKS | |
9b7292ce | 1195 | /* allocate this many small blocks at once */ |
1196 | mallopt(M_NLBLKS, 32); | |
62e76326 | 1197 | |
7328e889 | 1198 | #endif |
1199 | #endif /* HAVE_MALLOPT */ | |
1200 | ||
9b7292ce | 1201 | squid_srandom(time(NULL)); |
4d64d74a | 1202 | |
9b7292ce | 1203 | getCurrentTime(); |
62e76326 | 1204 | |
9b7292ce | 1205 | squid_start = current_time; |
62e76326 | 1206 | |
9b7292ce | 1207 | failure_notify = fatal_dump; |
4d64d74a | 1208 | |
6c1962dd | 1209 | #if USE_WIN32_SERVICE |
1210 | ||
9b7292ce | 1211 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1212 | |
1213 | #endif | |
1214 | ||
9b7292ce | 1215 | mainParseOptions(argc, argv); |
4d64d74a | 1216 | |
9aae6be3 | 1217 | if (opt_parse_cfg_only) { |
1218 | Debug::parseOptions("ALL,1"); | |
1219 | } | |
1220 | ||
6c1962dd | 1221 | #if USE_WIN32_SERVICE |
1222 | ||
a0aa9e74 | 1223 | if (opt_install_service) |
1224 | { | |
9b7292ce | 1225 | WIN32_InstallService(); |
a0aa9e74 | 1226 | return 0; |
9b7292ce | 1227 | } |
6c1962dd | 1228 | |
a0aa9e74 | 1229 | if (opt_remove_service) |
1230 | { | |
9b7292ce | 1231 | WIN32_RemoveService(); |
a0aa9e74 | 1232 | return 0; |
9b7292ce | 1233 | } |
6c1962dd | 1234 | |
a0aa9e74 | 1235 | if (opt_command_line) |
1236 | { | |
9b7292ce | 1237 | WIN32_SetServiceCommandLine(); |
a0aa9e74 | 1238 | return 0; |
9b7292ce | 1239 | } |
6c1962dd | 1240 | |
1241 | #endif | |
1242 | ||
9b7292ce | 1243 | /* parse configuration file |
1244 | * note: in "normal" case this used to be called from mainInitialize() */ | |
1245 | { | |
1246 | int parse_err; | |
62e76326 | 1247 | |
9b7292ce | 1248 | if (!ConfigFile) |
1249 | ConfigFile = xstrdup(DefaultConfigFile); | |
62e76326 | 1250 | |
9b7292ce | 1251 | assert(!configured_once); |
62e76326 | 1252 | |
9b7292ce | 1253 | Mem::Init(); |
62e76326 | 1254 | |
9b7292ce | 1255 | storeFsInit(); /* required for config parsing */ |
62e76326 | 1256 | |
b9ae18aa | 1257 | /* May not be needed for parsing, have not audited for such */ |
1258 | DiskIOModule::SetupAllModules(); | |
1259 | ||
59b2d47f | 1260 | /* Shouldn't be needed for config parsing, but have not audited for such */ |
1261 | StoreFileSystem::SetupAllFs(); | |
1262 | ||
c8f4eac4 | 1263 | /* we may want the parsing process to set this up in the future */ |
1264 | Store::Root(new StoreController); | |
1265 | ||
dd9b1081 | 1266 | parse_err = parseConfigFile(ConfigFile); |
62e76326 | 1267 | |
97244680 | 1268 | Mem::Report(); |
1269 | ||
9b7292ce | 1270 | if (opt_parse_cfg_only) |
6c1962dd | 1271 | |
9b7292ce | 1272 | return parse_err; |
9b7292ce | 1273 | } |
c642c141 | 1274 | setUmask(Config.umask); |
9b7292ce | 1275 | if (-1 == opt_send_signal) |
1276 | if (checkRunningPid()) | |
1277 | exit(1); | |
e13ee7ad | 1278 | |
9bc73deb | 1279 | #if TEST_ACCESS |
62e76326 | 1280 | |
95564b0d | 1281 | comm_init(); |
62e76326 | 1282 | |
9b7292ce | 1283 | comm_select_init(); |
62e76326 | 1284 | |
9b7292ce | 1285 | mainInitialize(); |
62e76326 | 1286 | |
9b7292ce | 1287 | test_access(); |
62e76326 | 1288 | |
9b7292ce | 1289 | return 0; |
62e76326 | 1290 | |
9bc73deb | 1291 | #endif |
1292 | ||
9b7292ce | 1293 | /* send signal to running copy and exit */ |
a0aa9e74 | 1294 | if (opt_send_signal != -1) |
1295 | { | |
9b7292ce | 1296 | /* chroot if configured to run inside chroot */ |
62e76326 | 1297 | |
a572d8be | 1298 | if (Config.chroot_dir) { |
1299 | if (chroot(Config.chroot_dir)) | |
1300 | fatal("failed to chroot"); | |
1301 | ||
1302 | no_suid(); | |
1303 | } else { | |
1304 | leave_suid(); | |
9b7292ce | 1305 | } |
62e76326 | 1306 | |
9b7292ce | 1307 | sendSignal(); |
1308 | /* NOTREACHED */ | |
1309 | } | |
62e76326 | 1310 | |
a0aa9e74 | 1311 | if (opt_create_swap_dirs) |
1312 | { | |
9b7292ce | 1313 | /* chroot if configured to run inside chroot */ |
0e657244 | 1314 | |
9b7292ce | 1315 | if (Config.chroot_dir && chroot(Config.chroot_dir)) { |
1316 | fatal("failed to chroot"); | |
1317 | } | |
62e76326 | 1318 | |
9b7292ce | 1319 | setEffectiveUser(); |
bf8fe701 | 1320 | debugs(0, 0, "Creating Swap Directories"); |
c8f4eac4 | 1321 | Store::Root().create(); |
6c1962dd | 1322 | |
9b7292ce | 1323 | return 0; |
9b7292ce | 1324 | } |
62e76326 | 1325 | |
9b7292ce | 1326 | if (!opt_no_daemon) |
1327 | watch_child(argv); | |
62e76326 | 1328 | |
95564b0d | 1329 | setMaxFD(); |
1330 | ||
1331 | /* init comm module */ | |
1332 | comm_init(); | |
62e76326 | 1333 | |
9b7292ce | 1334 | comm_select_init(); |
4d64d74a | 1335 | |
a0aa9e74 | 1336 | if (opt_no_daemon) |
1337 | { | |
9b7292ce | 1338 | /* we have to init fdstat here. */ |
1339 | fd_open(0, FD_LOG, "stdin"); | |
1340 | fd_open(1, FD_LOG, "stdout"); | |
1341 | fd_open(2, FD_LOG, "stderr"); | |
1342 | } | |
62e76326 | 1343 | |
6c1962dd | 1344 | #if USE_WIN32_SERVICE |
1345 | ||
9b7292ce | 1346 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1347 | |
1348 | #endif | |
1349 | ||
9b7292ce | 1350 | mainInitialize(); |
4d64d74a | 1351 | |
6c1962dd | 1352 | #if USE_WIN32_SERVICE |
1353 | ||
9b7292ce | 1354 | WIN32_svcstatusupdate(SERVICE_RUNNING, 0); |
6c1962dd | 1355 | |
1356 | #endif | |
1357 | ||
9b7292ce | 1358 | /* main loop */ |
a553a5a3 | 1359 | EventLoop mainLoop; |
62e76326 | 1360 | |
9688b0ae | 1361 | SignalEngine signalEngine(mainLoop); |
6c1962dd | 1362 | |
9688b0ae | 1363 | mainLoop.registerEngine(&signalEngine); |
62e76326 | 1364 | |
8ff3fa2e | 1365 | /* TODO: stop requiring the singleton here */ |
1366 | mainLoop.registerEngine(EventScheduler::GetInstance()); | |
62e76326 | 1367 | |
8ff3fa2e | 1368 | StoreRootEngine store_engine; |
615f9581 | 1369 | |
8ff3fa2e | 1370 | mainLoop.registerEngine(&store_engine); |
a774fd3f | 1371 | |
8ff3fa2e | 1372 | CommSelectEngine comm_engine; |
1373 | ||
8ff3fa2e | 1374 | mainLoop.registerEngine(&comm_engine); |
1375 | ||
bef81ea5 | 1376 | mainLoop.setPrimaryEngine(&comm_engine); |
1377 | ||
8ff3fa2e | 1378 | /* use the standard time service */ |
1379 | TimeEngine time_engine; | |
1380 | ||
1381 | mainLoop.setTimeService(&time_engine); | |
1382 | ||
1383 | mainLoop.run(); | |
1384 | ||
1385 | if (mainLoop.errcount == 10) | |
1386 | fatal_dump("Event loop exited with failure."); | |
1387 | ||
1388 | /* shutdown squid now */ | |
1389 | SquidShutdown(); | |
62e76326 | 1390 | |
9b7292ce | 1391 | /* NOTREACHED */ |
9b7292ce | 1392 | return 0; |
090089c4 | 1393 | } |
7690e8eb | 1394 | |
b8d8561b | 1395 | static void |
0673c0ba | 1396 | sendSignal(void) |
7690e8eb | 1397 | { |
ff8d0ea6 | 1398 | pid_t pid; |
fedac7e5 | 1399 | debug_log = stderr; |
258ac4d7 | 1400 | |
1401 | if (strcmp(Config.pidFilename, "none") == 0) { | |
bf8fe701 | 1402 | debugs(0, 1, "No pid_filename specified. Trusting you know what you are doing."); |
258ac4d7 | 1403 | } |
1404 | ||
fedac7e5 | 1405 | pid = readPidFile(); |
62e76326 | 1406 | |
fedac7e5 | 1407 | if (pid > 1) { |
6c1962dd | 1408 | #if USE_WIN32_SERVICE |
1409 | ||
1410 | if (opt_signal_service) { | |
1411 | WIN32_sendSignal(opt_send_signal); | |
1412 | exit(0); | |
1413 | } else | |
1414 | #ifdef _SQUID_MSWIN_ | |
1415 | { | |
7dbca7a4 | 1416 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
6c1962dd | 1417 | fprintf(stderr, "signal to Squid Service:\n"); |
1418 | fprintf(stderr, "missing -n command line switch.\n"); | |
1419 | exit(1); | |
1420 | } | |
1421 | ||
1422 | /* NOTREACHED */ | |
1423 | #endif | |
1424 | ||
1425 | #endif | |
1426 | ||
62e76326 | 1427 | if (kill(pid, opt_send_signal) && |
1428 | /* ignore permissions if just running check */ | |
1429 | !(opt_send_signal == 0 && errno == EPERM)) { | |
7dbca7a4 | 1430 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
62e76326 | 1431 | fprintf(stderr, "signal %d to process %d: %s\n", |
1432 | opt_send_signal, (int) pid, xstrerror()); | |
1433 | exit(1); | |
1434 | } | |
fedac7e5 | 1435 | } else { |
7dbca7a4 | 1436 | fprintf(stderr, "%s: ERROR: No running copy\n", APP_SHORTNAME); |
62e76326 | 1437 | exit(1); |
7690e8eb | 1438 | } |
62e76326 | 1439 | |
fedac7e5 | 1440 | /* signal successfully sent */ |
1441 | exit(0); | |
1442 | } | |
f95b8144 | 1443 | |
a50bfe93 | 1444 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 1445 | /* |
1446 | * This function is run when Squid is in daemon mode, just | |
1447 | * before the parent forks and starts up the child process. | |
1448 | * It can be used for admin-specific tasks, such as notifying | |
1449 | * someone that Squid is (re)started. | |
1450 | */ | |
1451 | static void | |
1452 | mainStartScript(const char *prog) | |
1453 | { | |
1454 | char script[SQUID_MAXPATHLEN]; | |
1455 | char *t; | |
1456 | size_t sl = 0; | |
1457 | pid_t cpid; | |
1458 | pid_t rpid; | |
1459 | xstrncpy(script, prog, MAXPATHLEN); | |
62e76326 | 1460 | |
e18d7fdc | 1461 | if ((t = strrchr(script, '/'))) { |
62e76326 | 1462 | *(++t) = '\0'; |
1463 | sl = strlen(script); | |
e18d7fdc | 1464 | } |
62e76326 | 1465 | |
e18d7fdc | 1466 | xstrncpy(&script[sl], squid_start_script, MAXPATHLEN - sl); |
62e76326 | 1467 | |
e18d7fdc | 1468 | if ((cpid = fork()) == 0) { |
62e76326 | 1469 | /* child */ |
f75662c9 | 1470 | execl(script, squid_start_script, (char *)NULL); |
482aa790 | 1471 | _exit(-1); |
e18d7fdc | 1472 | } else { |
62e76326 | 1473 | do { |
e18d7fdc | 1474 | #ifdef _SQUID_NEXT_ |
62e76326 | 1475 | union wait status; |
1476 | rpid = wait3(&status, 0, NULL); | |
e18d7fdc | 1477 | #else |
62e76326 | 1478 | |
1479 | int status; | |
1480 | rpid = waitpid(-1, &status, 0); | |
e18d7fdc | 1481 | #endif |
62e76326 | 1482 | |
1483 | } while (rpid != cpid); | |
e18d7fdc | 1484 | } |
1485 | } | |
1486 | ||
a50bfe93 | 1487 | #endif /* _SQUID_MSWIN_ */ |
1488 | ||
efd900cb | 1489 | static int |
1490 | checkRunningPid(void) | |
1491 | { | |
1492 | pid_t pid; | |
e0077312 | 1493 | |
1494 | if (!debug_log) | |
1495 | debug_log = stderr; | |
1496 | ||
efd900cb | 1497 | pid = readPidFile(); |
62e76326 | 1498 | |
efd900cb | 1499 | if (pid < 2) |
62e76326 | 1500 | return 0; |
1501 | ||
efd900cb | 1502 | if (kill(pid, 0) < 0) |
62e76326 | 1503 | return 0; |
1504 | ||
cb7a4fcb | 1505 | debugs(0, 0, "Squid is already running! Process ID " << pid); |
62e76326 | 1506 | |
efd900cb | 1507 | return 1; |
1508 | } | |
1509 | ||
f95b8144 | 1510 | static void |
bbe199dc | 1511 | watch_child(char *argv[]) |
f95b8144 | 1512 | { |
a50bfe93 | 1513 | #ifndef _SQUID_MSWIN_ |
f95b8144 | 1514 | char *prog; |
f95b8144 | 1515 | int failcount = 0; |
1516 | time_t start; | |
1517 | time_t stop; | |
1518 | #ifdef _SQUID_NEXT_ | |
62e76326 | 1519 | |
f95b8144 | 1520 | union wait status; |
1521 | #else | |
62e76326 | 1522 | |
f95b8144 | 1523 | int status; |
1524 | #endif | |
62e76326 | 1525 | |
e3a3b845 | 1526 | pid_t pid; |
c99c5397 | 1527 | #ifdef TIOCNOTTY |
1528 | ||
54f742e7 | 1529 | int i; |
c99c5397 | 1530 | #endif |
1531 | ||
742724a4 | 1532 | int nullfd; |
62e76326 | 1533 | |
f95b8144 | 1534 | if (*(argv[0]) == '(') |
62e76326 | 1535 | return; |
1536 | ||
7dbca7a4 | 1537 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1538 | |
54f742e7 | 1539 | if ((pid = fork()) < 0) |
62e76326 | 1540 | syslog(LOG_ALERT, "fork failed: %s", xstrerror()); |
54f742e7 | 1541 | else if (pid > 0) |
62e76326 | 1542 | exit(0); |
1543 | ||
54f742e7 | 1544 | if (setsid() < 0) |
62e76326 | 1545 | syslog(LOG_ALERT, "setsid failed: %s", xstrerror()); |
1546 | ||
efd900cb | 1547 | closelog(); |
62e76326 | 1548 | |
54f742e7 | 1549 | #ifdef TIOCNOTTY |
62e76326 | 1550 | |
c4aefe96 | 1551 | if ((i = open("/dev/tty", O_RDWR | O_TEXT)) >= 0) { |
62e76326 | 1552 | ioctl(i, TIOCNOTTY, NULL); |
1553 | close(i); | |
54f742e7 | 1554 | } |
62e76326 | 1555 | |
54f742e7 | 1556 | #endif |
b05490a8 | 1557 | |
7f6ffd15 | 1558 | /* |
1559 | * RBCOLLINS - if cygwin stackdumps when squid is run without | |
1560 | * -N, check the cygwin1.dll version, it needs to be AT LEAST | |
1561 | * 1.1.3. execvp had a bit overflow error in a loop.. | |
1562 | */ | |
742724a4 | 1563 | /* Connect stdio to /dev/null in daemon mode */ |
4da086c4 | 1564 | nullfd = open(_PATH_DEVNULL, O_RDWR | O_TEXT); |
62e76326 | 1565 | |
e4a1325e | 1566 | if (nullfd < 0) |
4da086c4 | 1567 | fatalf(_PATH_DEVNULL " %s\n", xstrerror()); |
e4a1325e | 1568 | |
742724a4 | 1569 | dup2(nullfd, 0); |
62e76326 | 1570 | |
742724a4 | 1571 | if (opt_debug_stderr < 0) { |
62e76326 | 1572 | dup2(nullfd, 1); |
1573 | dup2(nullfd, 2); | |
742724a4 | 1574 | } |
62e76326 | 1575 | |
f95b8144 | 1576 | for (;;) { |
62e76326 | 1577 | mainStartScript(argv[0]); |
1578 | ||
1579 | if ((pid = fork()) == 0) { | |
1580 | /* child */ | |
7dbca7a4 | 1581 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1582 | prog = xstrdup(argv[0]); |
1583 | argv[0] = xstrdup("(squid)"); | |
1584 | execvp(prog, argv); | |
1585 | syslog(LOG_ALERT, "execvp failed: %s", xstrerror()); | |
1586 | } | |
1587 | ||
1588 | /* parent */ | |
7dbca7a4 | 1589 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1590 | |
1591 | syslog(LOG_NOTICE, "Squid Parent: child process %d started", pid); | |
1592 | ||
1593 | time(&start); | |
1594 | ||
1595 | squid_signal(SIGINT, SIG_IGN, SA_RESTART); | |
1596 | ||
f95b8144 | 1597 | #ifdef _SQUID_NEXT_ |
62e76326 | 1598 | |
1599 | pid = wait3(&status, 0, NULL); | |
1600 | ||
f95b8144 | 1601 | #else |
62e76326 | 1602 | |
1603 | pid = waitpid(-1, &status, 0); | |
1604 | ||
1605 | #endif | |
1606 | ||
1607 | time(&stop); | |
1608 | ||
1609 | if (WIFEXITED(status)) { | |
1610 | syslog(LOG_NOTICE, | |
1611 | "Squid Parent: child process %d exited with status %d", | |
1612 | pid, WEXITSTATUS(status)); | |
1613 | } else if (WIFSIGNALED(status)) { | |
1614 | syslog(LOG_NOTICE, | |
cc192b50 | 1615 | "Squid Parent: child process %d exited due to signal %d with status %d", |
1616 | pid, WTERMSIG(status), WEXITSTATUS(status)); | |
62e76326 | 1617 | } else { |
1618 | syslog(LOG_NOTICE, "Squid Parent: child process %d exited", pid); | |
1619 | } | |
1620 | ||
1621 | if (stop - start < 10) | |
1622 | failcount++; | |
1623 | else | |
1624 | failcount = 0; | |
1625 | ||
1626 | if (failcount == 5) { | |
1627 | syslog(LOG_ALERT, "Exiting due to repeated, frequent failures"); | |
1628 | exit(1); | |
1629 | } | |
1630 | ||
1631 | if (WIFEXITED(status)) | |
1632 | if (WEXITSTATUS(status) == 0) | |
1633 | exit(0); | |
1634 | ||
1635 | if (WIFSIGNALED(status)) { | |
1636 | switch (WTERMSIG(status)) { | |
1637 | ||
1638 | case SIGKILL: | |
1639 | exit(0); | |
1640 | break; | |
1641 | ||
06a0fbd3 | 1642 | case SIGINT: |
1643 | case SIGTERM: | |
1644 | syslog(LOG_ALERT, "Exiting due to unexpected forced shutdown"); | |
1645 | exit(1); | |
1646 | break; | |
1647 | ||
62e76326 | 1648 | default: |
1649 | break; | |
1650 | } | |
1651 | } | |
1652 | ||
1653 | squid_signal(SIGINT, SIG_DFL, SA_RESTART); | |
1654 | sleep(3); | |
f95b8144 | 1655 | } |
62e76326 | 1656 | |
bbe199dc | 1657 | /* NOTREACHED */ |
a50bfe93 | 1658 | #endif /* _SQUID_MSWIN_ */ |
a572d8be | 1659 | |
f95b8144 | 1660 | } |
fff6ad65 | 1661 | |
9ec1a1dc | 1662 | static void |
8ff3fa2e | 1663 | SquidShutdown() |
fff6ad65 | 1664 | { |
6c1962dd | 1665 | #if USE_WIN32_SERVICE |
1666 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1667 | #endif | |
1668 | ||
bf8fe701 | 1669 | debugs(1, 1, "Shutting down..."); |
95a83c22 | 1670 | #if USE_DNSSERVERS |
1671 | ||
1672 | dnsShutdown(); | |
1673 | #else | |
1674 | ||
1675 | idnsShutdown(); | |
1676 | #endif | |
1677 | ||
1678 | redirectShutdown(); | |
1679 | externalAclShutdown(); | |
d723bf6b | 1680 | icpConnectionClose(); |
1681 | #if USE_HTCP | |
62e76326 | 1682 | |
d723bf6b | 1683 | htcpSocketClose(); |
1684 | #endif | |
1685 | #ifdef SQUID_SNMP | |
62e76326 | 1686 | |
d723bf6b | 1687 | snmpConnectionClose(); |
320e9f36 | 1688 | #endif |
eb824054 | 1689 | #if USE_WCCP |
62e76326 | 1690 | |
320e9f36 | 1691 | wccpConnectionClose(); |
d723bf6b | 1692 | #endif |
0b0cfcf2 | 1693 | #if USE_WCCPv2 |
1694 | ||
1695 | wccp2ConnectionClose(); | |
1696 | #endif | |
62e76326 | 1697 | |
fff6ad65 | 1698 | releaseServerSockets(); |
d723bf6b | 1699 | commCloseAllSockets(); |
515ec4dc | 1700 | #if DELAY_POOLS |
62e76326 | 1701 | |
b67e2c8c | 1702 | DelayPools::FreePools(); |
515ec4dc | 1703 | #endif |
62e76326 | 1704 | |
5dae8514 | 1705 | authenticateShutdown(); |
6c1962dd | 1706 | #if USE_WIN32_SERVICE |
1707 | ||
1708 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1709 | #endif | |
62e76326 | 1710 | |
c8f4eac4 | 1711 | Store::Root().sync(); /* Flush pending object writes/unlinks */ |
4d075ba0 | 1712 | #if USE_UNLINKD |
1713 | ||
1714 | unlinkdClose(); /* after sync/flush */ | |
1715 | #endif | |
fc68f6b1 | 1716 | |
fff6ad65 | 1717 | storeDirWriteCleanLogs(0); |
1718 | PrintRusage(); | |
1719 | dumpMallocStats(); | |
c8f4eac4 | 1720 | Store::Root().sync(); /* Flush log writes */ |
fff6ad65 | 1721 | storeLogClose(); |
1722 | accessLogClose(); | |
5b824235 | 1723 | useragentLogClose(); |
c9b99797 | 1724 | refererCloseLog(); |
225644d7 | 1725 | #if WIP_FWD_LOG |
62e76326 | 1726 | |
225644d7 | 1727 | fwdUninit(); |
1728 | #endif | |
62e76326 | 1729 | |
c8f4eac4 | 1730 | Store::Root().sync(); /* Flush log close */ |
59b2d47f | 1731 | StoreFileSystem::FreeAllFs(); |
b9ae18aa | 1732 | DiskIOModule::FreeAllModules(); |
afec404b | 1733 | #if LEAK_CHECK_MODE && 0 /* doesn't work at the moment */ |
62e76326 | 1734 | |
fff6ad65 | 1735 | configFreeMemory(); |
1736 | storeFreeMemory(); | |
33ab18e8 | 1737 | /*stmemFreeMemory(); */ |
fff6ad65 | 1738 | netdbFreeMemory(); |
1739 | ipcacheFreeMemory(); | |
1740 | fqdncacheFreeMemory(); | |
1741 | asnFreeMemory(); | |
26a369ba | 1742 | clientdbFreeMemory(); |
7021844c | 1743 | httpHeaderCleanModule(); |
d2db411c | 1744 | statFreeMemory(); |
f1fc2a8d | 1745 | eventFreeMemory(); |
c68e9c6b | 1746 | mimeFreeMemory(); |
1747 | errorClean(); | |
fff6ad65 | 1748 | #endif |
26a369ba | 1749 | #if !XMALLOC_TRACE |
62e76326 | 1750 | |
54f742e7 | 1751 | if (opt_no_daemon) { |
62e76326 | 1752 | file_close(0); |
1753 | file_close(1); | |
1754 | file_close(2); | |
54f742e7 | 1755 | } |
62e76326 | 1756 | |
33ab18e8 | 1757 | #endif |
fff6ad65 | 1758 | fdDumpOpen(); |
62e76326 | 1759 | |
236d1779 | 1760 | comm_exit(); |
62e76326 | 1761 | |
ddb43c58 | 1762 | memClean(); |
62e76326 | 1763 | |
33ab18e8 | 1764 | #if XMALLOC_TRACE |
62e76326 | 1765 | |
26a369ba | 1766 | xmalloc_find_leaks(); |
62e76326 | 1767 | |
bf8fe701 | 1768 | debugs(1, 0, "Memory used after shutdown: " << xmalloc_total); |
62e76326 | 1769 | |
33ab18e8 | 1770 | #endif |
36a97e19 | 1771 | #if MEM_GEN_TRACE |
62e76326 | 1772 | |
399e85ea | 1773 | log_trace_done(); |
62e76326 | 1774 | |
36a97e19 | 1775 | #endif |
62e76326 | 1776 | |
ab50ee9e | 1777 | if (Config.pidFilename && strcmp(Config.pidFilename, "none") != 0) { |
62e76326 | 1778 | enter_suid(); |
1779 | safeunlink(Config.pidFilename, 0); | |
1780 | leave_suid(); | |
ab50ee9e | 1781 | } |
62e76326 | 1782 | |
bf8fe701 | 1783 | debugs(1, 1, "Squid Cache (Version " << version_string << "): Exiting normally."); |
62e76326 | 1784 | |
0cfa98cb | 1785 | /* |
1786 | * DPW 2006-10-23 | |
1787 | * We used to fclose(debug_log) here if it was set, but then | |
1788 | * we forgot to set it to NULL. That caused some coredumps | |
1789 | * because exit() ends up calling a bunch of destructors and | |
1790 | * such. So rather than forcing the debug_log to close, we'll | |
1791 | * leave it open so that those destructors can write some | |
1792 | * debugging if necessary. The file will be closed anyway when | |
1793 | * the process truly exits. | |
1794 | */ | |
62e76326 | 1795 | |
ae1feb30 | 1796 | exit(shutdown_status); |
fff6ad65 | 1797 | } |
bef81ea5 | 1798 |