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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 "ConfigParser.h" |
aa839030 | 39 | #include "errorpage.h" |
a553a5a3 | 40 | #include "event.h" |
41 | #include "EventLoop.h" | |
62ee09ca | 42 | #include "ExternalACL.h" |
e6ccf245 | 43 | #include "Store.h" |
44 | #include "ICP.h" | |
5a7431b8 | 45 | #include "ident.h" |
528b2c61 | 46 | #include "HttpReply.h" |
62ee09ca | 47 | #include "pconn.h" |
528b2c61 | 48 | #include "Mem.h" |
b0dd28ba | 49 | #include "ACLASN.h" |
50 | #include "ACL.h" | |
75faaa7a | 51 | #include "htcp.h" |
59b2d47f | 52 | #include "StoreFileSystem.h" |
b9ae18aa | 53 | #include "DiskIO/DiskIOModule.h" |
f900210a | 54 | #include "comm.h" |
62ee09ca | 55 | #if USE_EPOLL |
56 | #include "comm_epoll.h" | |
57 | #endif | |
58 | #if USE_KQUEUE | |
59 | #include "comm_kqueue.h" | |
60 | #endif | |
61 | #if USE_POLL | |
62 | #include "comm_poll.h" | |
63 | #endif | |
7cdb47bc | 64 | #if defined(USE_SELECT) || defined(USE_SELECT_WIN32) |
663c0a38 | 65 | #include "comm_select.h" |
66 | #endif | |
985c86bc | 67 | #include "SquidTime.h" |
c8f4eac4 | 68 | #include "SwapDir.h" |
b6b6f466 | 69 | #include "forward.h" |
d9e7ee1f | 70 | #include "MemPool.h" |
cc192b50 | 71 | #include "ICMPSquid.h" |
44a47c6e | 72 | |
57afc994 AR |
73 | #if USE_LOADABLE_MODULES |
74 | #include "LoadableModules.h" | |
75 | #endif | |
76 | ||
b958cb0f AR |
77 | #if ICAP_CLIENT |
78 | #include "ICAP/ICAPConfig.h" | |
79 | #endif | |
80 | #if USE_ADAPTATION | |
81 | #include "adaptation/Config.h" | |
82 | #endif | |
83 | ||
1a774556 | 84 | #if USE_WIN32_SERVICE |
85 | ||
86 | #include "squid_windows.h" | |
87 | #include <process.h> | |
88 | ||
89 | static int opt_install_service = FALSE; | |
90 | static int opt_remove_service = FALSE; | |
91 | static int opt_signal_service = FALSE; | |
92 | static int opt_command_line = FALSE; | |
93 | extern void WIN32_svcstatusupdate(DWORD, DWORD); | |
94 | void WINAPI WIN32_svcHandler(DWORD); | |
95 | ||
96 | #endif | |
97 | ||
63be0a78 | 98 | /** for error reporting from xmalloc and friends */ |
b293c4d8 | 99 | SQUIDCEXTERN void (*failure_notify) (const char *); |
30a4f2a8 | 100 | |
e13ee7ad | 101 | static int opt_parse_cfg_only = 0; |
5e6d4736 | 102 | static char *opt_syslog_facility = NULL; |
30a4f2a8 | 103 | static int icpPortNumOverride = 1; /* Want to detect "-u 0" */ |
e13ee7ad | 104 | static int configured_once = 0; |
30a4f2a8 | 105 | #if MALLOC_DBG |
4d64d74a | 106 | static int malloc_debug_level = 0; |
30a4f2a8 | 107 | #endif |
5cd39a10 | 108 | static volatile int do_reconfigure = 0; |
109 | static volatile int do_rotate = 0; | |
2681d383 | 110 | static volatile int do_shutdown = 0; |
ae1feb30 | 111 | static volatile int shutdown_status = 0; |
4d7add01 | 112 | |
5cd39a10 | 113 | static void mainRotate(void); |
114 | static void mainReconfigure(void); | |
f5b8bbc4 | 115 | static void mainInitialize(void); |
f5b8bbc4 | 116 | static void usage(void); |
63be0a78 | 117 | static void mainParseOptions(int argc, char *argv[]); |
f5b8bbc4 | 118 | static void sendSignal(void); |
119 | static void serverConnectionsOpen(void); | |
bbe199dc | 120 | static void watch_child(char **); |
85407535 | 121 | static void setEffectiveUser(void); |
36a97e19 | 122 | #if MEM_GEN_TRACE |
123 | extern void log_trace_done(); | |
124 | extern void log_trace_init(char *); | |
125 | #endif | |
8ff3fa2e | 126 | static void SquidShutdown(void); |
b6a2f15e | 127 | static void mainSetCwd(void); |
efd900cb | 128 | static int checkRunningPid(void); |
85407535 | 129 | |
b293c4d8 | 130 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 131 | static const char *squid_start_script = "squid_start"; |
b293c4d8 | 132 | #endif |
e18d7fdc | 133 | |
9bc73deb | 134 | #if TEST_ACCESS |
135 | #include "test_access.c" | |
136 | #endif | |
137 | ||
63be0a78 | 138 | /** temporary thunk across to the unrefactored store interface */ |
8ff3fa2e | 139 | |
140 | class StoreRootEngine : public AsyncEngine | |
141 | { | |
142 | ||
143 | public: | |
144 | int checkEvents(int timeout) | |
145 | { | |
146 | Store::Root().callback(); | |
147 | return EVENT_IDLE; | |
148 | }; | |
149 | }; | |
150 | ||
9688b0ae | 151 | class SignalEngine: public AsyncEngine |
a553a5a3 | 152 | { |
153 | ||
154 | public: | |
9688b0ae | 155 | SignalEngine(EventLoop &loop) : loop(loop) {} |
156 | virtual int checkEvents(int timeout); | |
a553a5a3 | 157 | |
158 | private: | |
159 | static void StopEventLoop(void * data) | |
160 | { | |
9688b0ae | 161 | static_cast<SignalEngine *>(data)->loop.stop(); |
a553a5a3 | 162 | } |
163 | ||
9688b0ae | 164 | void doShutdown(time_t wait); |
165 | ||
a553a5a3 | 166 | EventLoop &loop; |
167 | }; | |
168 | ||
9688b0ae | 169 | int |
170 | SignalEngine::checkEvents(int timeout) | |
a553a5a3 | 171 | { |
9688b0ae | 172 | PROF_start(SignalEngine_checkEvents); |
fc68f6b1 | 173 | |
a553a5a3 | 174 | if (do_reconfigure) { |
175 | mainReconfigure(); | |
176 | do_reconfigure = 0; | |
a553a5a3 | 177 | } else if (do_rotate) { |
178 | mainRotate(); | |
179 | do_rotate = 0; | |
180 | } else if (do_shutdown) { | |
9688b0ae | 181 | doShutdown(do_shutdown > 0 ? (int) Config.shutdownLifetime : 0); |
a553a5a3 | 182 | do_shutdown = 0; |
9688b0ae | 183 | } |
a553a5a3 | 184 | |
9688b0ae | 185 | PROF_stop(SignalEngine_checkEvents); |
186 | return EVENT_IDLE; | |
187 | } | |
a553a5a3 | 188 | |
9688b0ae | 189 | void |
190 | SignalEngine::doShutdown(time_t wait) | |
191 | { | |
192 | debugs(1, 1, "Preparing for shutdown after " << statCounter.client_http.requests << " requests"); | |
193 | debugs(1, 1, "Waiting " << wait << " seconds for active connections to finish"); | |
8ff3fa2e | 194 | |
9688b0ae | 195 | shutting_down = 1; |
196 | ||
197 | #if USE_WIN32_SERVICE | |
198 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, (wait + 1) * 1000); | |
199 | #endif | |
200 | ||
201 | serverConnectionsClose(); | |
202 | eventAdd("SquidShutdown", &StopEventLoop, this, (double) (wait + 1), 1, false); | |
a553a5a3 | 203 | } |
204 | ||
b8d8561b | 205 | static void |
0673c0ba | 206 | usage(void) |
ccff9601 | 207 | { |
0ee4272b | 208 | fprintf(stderr, |
0e657244 | 209 | #if USE_WIN32_SERVICE |
5e6d4736 | 210 | "Usage: %s [-cdhirvzCDFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal] [-n name] [-O CommandLine]\n" |
0e657244 | 211 | #else |
5e6d4736 | 212 | "Usage: %s [-cdhvzCDFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal]\n" |
0e657244 | 213 | #endif |
62e76326 | 214 | " -a port Specify HTTP port number (default: %d).\n" |
215 | " -d level Write debugging to stderr also.\n" | |
216 | " -f file Use given config-file instead of\n" | |
217 | " %s\n" | |
218 | " -h Print help message.\n" | |
0e657244 | 219 | #if USE_WIN32_SERVICE |
220 | " -i Installs as a Windows Service (see -n option).\n" | |
221 | #endif | |
62e76326 | 222 | " -k reconfigure|rotate|shutdown|interrupt|kill|debug|check|parse\n" |
223 | " Parse configuration file, then send signal to \n" | |
224 | " running copy (except -k parse) and exit.\n" | |
0e657244 | 225 | #if USE_WIN32_SERVICE |
226 | " -n name Specify Windows Service name to use for service operations\n" | |
227 | " default is: " _WIN_SQUID_DEFAULT_SERVICE_NAME ".\n" | |
228 | " -r Removes a Windows Service (see -n option).\n" | |
229 | #endif | |
5e6d4736 | 230 | " -s | -l facility\n" |
231 | " Enable logging to syslog.\n" | |
62e76326 | 232 | " -u port Specify ICP port number (default: %d), disable with 0.\n" |
233 | " -v Print version.\n" | |
234 | " -z Create swap directories\n" | |
235 | " -C Do not catch fatal signals.\n" | |
236 | " -D Disable initial DNS tests.\n" | |
237 | " -F Don't serve any requests until store is rebuilt.\n" | |
238 | " -N No daemon mode.\n" | |
0e657244 | 239 | #if USE_WIN32_SERVICE |
240 | " -O options\n" | |
241 | " Set Windows Service Command line options in Registry.\n" | |
242 | #endif | |
62e76326 | 243 | " -R Do not set REUSEADDR on port.\n" |
244 | " -S Double-check swap during rebuild.\n" | |
245 | " -V Virtual host httpd-accelerator.\n" | |
246 | " -X Force full debugging.\n" | |
247 | " -Y Only return UDP_HIT or UDP_MISS_NOFETCH during fast reload.\n", | |
7dbca7a4 | 248 | APP_SHORTNAME, CACHE_HTTP_PORT, DefaultConfigFile, CACHE_ICP_PORT); |
77ffc99f | 249 | exit(1); |
ccff9601 | 250 | } |
251 | ||
63be0a78 | 252 | /** |
253 | * Parse the parameters received via command line interface. | |
254 | * | |
255 | \param argc[in] Number of options received on command line | |
256 | \param argv[in] List of parameters received on command line | |
257 | */ | |
b8d8561b | 258 | static void |
259 | mainParseOptions(int argc, char *argv[]) | |
090089c4 | 260 | { |
090089c4 | 261 | extern char *optarg; |
4d64d74a | 262 | int c; |
090089c4 | 263 | |
0e657244 | 264 | #if USE_WIN32_SERVICE |
5e6d4736 | 265 | while ((c = getopt(argc, argv, "CDFNO:RSVYXa:d:f:hik:m::n:rsl:u:vz?")) != -1) |
0e657244 | 266 | #else |
05f1c52c | 267 | while ((c = getopt(argc, argv, "CDFNRSYXa:d:f:hk:m::sl:u:vz?")) != -1) |
0e657244 | 268 | #endif |
9b7292ce | 269 | { |
270 | ||
271 | switch (c) | |
272 | { | |
62e76326 | 273 | |
274 | case 'C': | |
63be0a78 | 275 | /** \par C |
276 | * Unset/disabel global option for catchign signals. opt_catch_signals */ | |
62e76326 | 277 | opt_catch_signals = 0; |
278 | break; | |
279 | ||
280 | case 'D': | |
63be0a78 | 281 | /** \par D |
282 | * Unset/disable global option for optional DNS tests. opt_dns_tests */ | |
62e76326 | 283 | opt_dns_tests = 0; |
284 | break; | |
285 | ||
286 | case 'F': | |
63be0a78 | 287 | /** \par F |
288 | * Set global option for foreground rebuild. opt_foreground_rebuild */ | |
62e76326 | 289 | opt_foreground_rebuild = 1; |
290 | break; | |
291 | ||
292 | case 'N': | |
63be0a78 | 293 | /** \par N |
294 | * Set global option for 'no_daemon' mode. opt_no_daemon */ | |
62e76326 | 295 | opt_no_daemon = 1; |
296 | break; | |
63be0a78 | 297 | |
0e657244 | 298 | #if USE_WIN32_SERVICE |
299 | ||
300 | case 'O': | |
63be0a78 | 301 | /** \par O |
302 | * Set global option. opt_command_lin and WIN32_Command_Line */ | |
0e657244 | 303 | opt_command_line = 1; |
304 | WIN32_Command_Line = xstrdup(optarg); | |
305 | break; | |
306 | #endif | |
62e76326 | 307 | |
308 | case 'R': | |
63be0a78 | 309 | /** \par R |
310 | * Unset/disable global option opt_reuseaddr */ | |
62e76326 | 311 | opt_reuseaddr = 0; |
312 | break; | |
313 | ||
314 | case 'S': | |
63be0a78 | 315 | /** \par S |
316 | * Set global option opt_store_doublecheck */ | |
62e76326 | 317 | opt_store_doublecheck = 1; |
318 | break; | |
319 | ||
62e76326 | 320 | case 'X': |
63be0a78 | 321 | /** \par X |
322 | * Force full debugging */ | |
37296f4c | 323 | Debug::parseOptions("debug_options ALL,9"); |
324 | Config.onoff.debug_override_X = 1; | |
62e76326 | 325 | sigusr2_handle(SIGUSR2); |
62e76326 | 326 | break; |
327 | ||
328 | case 'Y': | |
63be0a78 | 329 | /** \par Y |
330 | * Set global option opt_reload_hit_only */ | |
62e76326 | 331 | opt_reload_hit_only = 1; |
62e76326 | 332 | break; |
333 | ||
0e657244 | 334 | #if USE_WIN32_SERVICE |
335 | ||
336 | case 'i': | |
63be0a78 | 337 | /** \par i |
338 | * Set global option opt_install_service (to TRUE) */ | |
0e657244 | 339 | opt_install_service = TRUE; |
0e657244 | 340 | break; |
0e657244 | 341 | #endif |
342 | ||
62e76326 | 343 | case 'a': |
63be0a78 | 344 | /** \par a |
345 | * Add optional HTTP port as given following the option */ | |
62e76326 | 346 | add_http_port(optarg); |
62e76326 | 347 | break; |
348 | ||
349 | case 'd': | |
63be0a78 | 350 | /** \par d |
351 | * Set global option opt_debug_stderr to the number given follwoign the option */ | |
62e76326 | 352 | opt_debug_stderr = atoi(optarg); |
62e76326 | 353 | break; |
354 | ||
355 | case 'f': | |
63be0a78 | 356 | /** \par f |
357 | * Load the file given instead of the default squid.conf. */ | |
62e76326 | 358 | xfree(ConfigFile); |
62e76326 | 359 | ConfigFile = xstrdup(optarg); |
62e76326 | 360 | break; |
361 | ||
362 | case 'k': | |
63be0a78 | 363 | /** \par k |
364 | * Run the administrative action given following the option */ | |
fc68f6b1 | 365 | |
63be0a78 | 366 | /** \li When its an unknown option display the usage help. */ |
62e76326 | 367 | if ((int) strlen(optarg) < 1) |
368 | usage(); | |
369 | ||
370 | if (!strncmp(optarg, "reconfigure", strlen(optarg))) | |
63be0a78 | 371 | /** \li On reconfigure send SIGHUP. */ |
62e76326 | 372 | opt_send_signal = SIGHUP; |
373 | else if (!strncmp(optarg, "rotate", strlen(optarg))) | |
63be0a78 | 374 | /** \li On rotate send SIGQUIT or SIGUSR1. */ |
7e7a0442 | 375 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 376 | |
377 | opt_send_signal = SIGQUIT; | |
378 | ||
e3175d1f | 379 | #else |
62e76326 | 380 | |
381 | opt_send_signal = SIGUSR1; | |
382 | ||
e3175d1f | 383 | #endif |
62e76326 | 384 | |
385 | else if (!strncmp(optarg, "debug", strlen(optarg))) | |
63be0a78 | 386 | /** \li On debug send SIGTRAP or SIGUSR2. */ |
7e7a0442 | 387 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 388 | |
389 | opt_send_signal = SIGTRAP; | |
390 | ||
e3175d1f | 391 | #else |
62e76326 | 392 | |
393 | opt_send_signal = SIGUSR2; | |
394 | ||
395 | #endif | |
396 | ||
397 | else if (!strncmp(optarg, "shutdown", strlen(optarg))) | |
63be0a78 | 398 | /** \li On shutdown send SIGTERM. */ |
62e76326 | 399 | opt_send_signal = SIGTERM; |
400 | else if (!strncmp(optarg, "interrupt", strlen(optarg))) | |
63be0a78 | 401 | /** \li On interrupt send SIGINT. */ |
62e76326 | 402 | opt_send_signal = SIGINT; |
403 | else if (!strncmp(optarg, "kill", strlen(optarg))) | |
63be0a78 | 404 | /** \li On kill send SIGKILL. */ |
62e76326 | 405 | opt_send_signal = SIGKILL; |
ae1feb30 | 406 | |
407 | #ifdef SIGTTIN | |
408 | ||
409 | else if (!strncmp(optarg, "restart", strlen(optarg))) | |
63be0a78 | 410 | /** \li On restart send SIGTTIN. (exit and restart by parent) */ |
411 | opt_send_signal = SIGTTIN; | |
ae1feb30 | 412 | |
413 | #endif | |
414 | ||
62e76326 | 415 | else if (!strncmp(optarg, "check", strlen(optarg))) |
63be0a78 | 416 | /** \li On check send 0 / SIGNULL. */ |
62e76326 | 417 | opt_send_signal = 0; /* SIGNULL */ |
418 | else if (!strncmp(optarg, "parse", strlen(optarg))) | |
63be0a78 | 419 | /** \li On parse set global flag to re-parse the config file only. */ |
420 | opt_parse_cfg_only = 1; | |
62e76326 | 421 | else |
422 | usage(); | |
423 | ||
424 | break; | |
425 | ||
426 | case 'm': | |
63be0a78 | 427 | /** \par m |
428 | * Set global malloc_debug_level to the value given following the option. | |
429 | * if none is given it toggles the xmalloc_trace option on/off */ | |
62e76326 | 430 | if (optarg) { |
30a4f2a8 | 431 | #if MALLOC_DBG |
fc68f6b1 | 432 | malloc_debug_level = atoi(optarg); |
30a4f2a8 | 433 | #else |
fc68f6b1 | 434 | fatal("Need to add -DMALLOC_DBG when compiling to use -mX option"); |
33ab18e8 | 435 | #endif |
62e76326 | 436 | |
437 | } else { | |
33ab18e8 | 438 | #if XMALLOC_TRACE |
62e76326 | 439 | xmalloc_trace = !xmalloc_trace; |
33ab18e8 | 440 | #else |
62e76326 | 441 | fatal("Need to configure --enable-xmalloc-debug-trace to use -m option"); |
30a4f2a8 | 442 | #endif |
62e76326 | 443 | } |
d9e7ee1f | 444 | break; |
d9e7ee1f | 445 | |
0e657244 | 446 | #if USE_WIN32_SERVICE |
447 | ||
448 | case 'n': | |
63be0a78 | 449 | /** \par n |
450 | * Set global option opt_signal_service (to TRUE). | |
451 | * Stores the additional parameter given in global WIN32_Service_name */ | |
0e657244 | 452 | xfree(WIN32_Service_name); |
453 | ||
454 | WIN32_Service_name = xstrdup(optarg); | |
455 | ||
456 | opt_signal_service = TRUE; | |
457 | ||
458 | break; | |
459 | ||
460 | case 'r': | |
63be0a78 | 461 | /** \par r |
462 | * Set global option opt_remove_service (to TRUE) */ | |
0e657244 | 463 | opt_remove_service = TRUE; |
464 | ||
465 | break; | |
466 | ||
467 | #endif | |
468 | ||
5e6d4736 | 469 | case 'l': |
63be0a78 | 470 | /** \par l |
471 | * Stores the syslog facility name in global opt_syslog_facility | |
472 | * then performs actions for -s option. */ | |
5e6d4736 | 473 | opt_syslog_facility = xstrdup(optarg); |
474 | ||
62e76326 | 475 | case 's': |
63be0a78 | 476 | /** \par s |
477 | * Initialize the syslog for output */ | |
c307aec3 | 478 | #if HAVE_SYSLOG |
62e76326 | 479 | |
5e6d4736 | 480 | _db_set_syslog(opt_syslog_facility); |
0e657244 | 481 | |
62e76326 | 482 | break; |
0e657244 | 483 | |
c307aec3 | 484 | #else |
62e76326 | 485 | |
486 | fatal("Logging to syslog not available on this platform"); | |
0e657244 | 487 | |
62e76326 | 488 | /* NOTREACHED */ |
489 | #endif | |
490 | ||
491 | case 'u': | |
63be0a78 | 492 | /** \par u |
493 | * Store the ICP port number given in global option icpPortNumOverride | |
494 | * ensuring its a positive number. */ | |
62e76326 | 495 | icpPortNumOverride = atoi(optarg); |
496 | ||
497 | if (icpPortNumOverride < 0) | |
498 | icpPortNumOverride = 0; | |
499 | ||
500 | break; | |
501 | ||
502 | case 'v': | |
63be0a78 | 503 | /** \par v |
504 | * Display squid version and build information. Then exit. */ | |
62e76326 | 505 | printf("Squid Cache: Version %s\nconfigure options: %s\n", version_string, SQUID_CONFIGURE_OPTIONS); |
506 | ||
1a774556 | 507 | #if USE_WIN32_SERVICE |
508 | ||
509 | printf("Compiled as Windows System Service.\n"); | |
510 | ||
511 | #endif | |
512 | ||
62e76326 | 513 | exit(0); |
514 | ||
515 | /* NOTREACHED */ | |
516 | ||
517 | case 'z': | |
63be0a78 | 518 | /** \par z |
519 | * Set global option opt_debug_stderr and opt_create_swap_dirs */ | |
930dea4a | 520 | opt_debug_stderr = 1; |
521 | ||
62e76326 | 522 | opt_create_swap_dirs = 1; |
523 | ||
524 | break; | |
525 | ||
63be0a78 | 526 | case 'h': |
527 | ||
62e76326 | 528 | case '?': |
529 | ||
530 | default: | |
63be0a78 | 531 | /** \par h,?, or unknown |
532 | * \copydoc usage() */ | |
62e76326 | 533 | usage(); |
534 | ||
535 | break; | |
536 | } | |
9b7292ce | 537 | |
090089c4 | 538 | } |
4d64d74a | 539 | } |
090089c4 | 540 | |
7a2f978b | 541 | /* ARGSUSED */ |
b293c4d8 | 542 | void |
9b7292ce | 543 | rotate_logs(int sig) |
544 | { | |
5cd39a10 | 545 | do_rotate = 1; |
a50bfe93 | 546 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 547 | #if !HAVE_SIGACTION |
62e76326 | 548 | |
30a4f2a8 | 549 | signal(sig, rotate_logs); |
550 | #endif | |
a50bfe93 | 551 | #endif |
30a4f2a8 | 552 | } |
553 | ||
7a2f978b | 554 | /* ARGSUSED */ |
b293c4d8 | 555 | void |
9b7292ce | 556 | reconfigure(int sig) |
557 | { | |
5cd39a10 | 558 | do_reconfigure = 1; |
a50bfe93 | 559 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 560 | #if !HAVE_SIGACTION |
62e76326 | 561 | |
30a4f2a8 | 562 | signal(sig, reconfigure); |
563 | #endif | |
a50bfe93 | 564 | #endif |
30a4f2a8 | 565 | } |
566 | ||
b8d8561b | 567 | void |
9b7292ce | 568 | shut_down(int sig) |
569 | { | |
2681d383 | 570 | do_shutdown = sig == SIGINT ? -1 : 1; |
ae1feb30 | 571 | #ifdef SIGTTIN |
572 | ||
573 | if (SIGTTIN == sig) | |
574 | shutdown_status = 1; | |
575 | ||
576 | #endif | |
a50bfe93 | 577 | #ifndef _SQUID_MSWIN_ |
cadc2d55 | 578 | #ifdef KILL_PARENT_OPT |
62e76326 | 579 | |
5cd39a10 | 580 | if (getppid() > 1) { |
36584579 | 581 | debugs(1, 1, "Killing RunCache, pid " << getppid()); |
62e76326 | 582 | |
583 | if (kill(getppid(), sig) < 0) | |
36584579 | 584 | debugs(1, 1, "kill " << getppid() << ": " << xstrerror()); |
88738790 | 585 | } |
62e76326 | 586 | |
cadc2d55 | 587 | #endif |
6e40f263 | 588 | #if SA_RESETHAND == 0 |
589 | signal(SIGTERM, SIG_DFL); | |
62e76326 | 590 | |
6e40f263 | 591 | signal(SIGINT, SIG_DFL); |
62e76326 | 592 | |
a50bfe93 | 593 | #endif |
6e40f263 | 594 | #endif |
30a4f2a8 | 595 | } |
596 | ||
24382924 | 597 | static void |
9b7292ce | 598 | serverConnectionsOpen(void) |
599 | { | |
d193a436 | 600 | clientOpenListenSockets(); |
15df8349 | 601 | icpConnectionsOpen(); |
ace287ee | 602 | #if USE_HTCP |
62e76326 | 603 | |
ace287ee | 604 | htcpInit(); |
605 | #endif | |
678c6099 | 606 | #ifdef SQUID_SNMP |
62e76326 | 607 | |
3265e68d | 608 | snmpConnectionOpen(); |
320e9f36 | 609 | #endif |
eb824054 | 610 | #if USE_WCCP |
62e76326 | 611 | |
320e9f36 | 612 | wccpConnectionOpen(); |
2bbd722b | 613 | #endif |
62e76326 | 614 | |
0b0cfcf2 | 615 | #if USE_WCCPv2 |
616 | ||
617 | wccp2ConnectionOpen(); | |
618 | #endif | |
619 | ||
5ecceaa4 | 620 | clientdbInit(); |
cc192b50 | 621 | icmpEngine.Open(); |
67508012 | 622 | netdbInit(); |
f899fac1 | 623 | asnInit(); |
b0dd28ba | 624 | ACL::Initialize(); |
85034133 | 625 | peerSelectInit(); |
62e76326 | 626 | |
afd88fbe | 627 | carpInit(); |
f7e1d9ce HN |
628 | peerUserHashInit(); |
629 | peerSourceHashInit(); | |
5f3f8d0e | 630 | } |
631 | ||
b8d8561b | 632 | void |
9b7292ce | 633 | serverConnectionsClose(void) |
634 | { | |
0a5a8601 | 635 | assert(shutting_down || reconfiguring); |
c0fbae16 | 636 | clientHttpConnectionsClose(); |
17e6c0a1 | 637 | icpConnectionShutdown(); |
72549e05 | 638 | #if USE_HTCP |
62e76326 | 639 | |
72549e05 | 640 | htcpSocketShutdown(); |
641 | #endif | |
62e76326 | 642 | |
cc192b50 | 643 | icmpEngine.Close(); |
15df8349 | 644 | #ifdef SQUID_SNMP |
62e76326 | 645 | |
17e6c0a1 | 646 | snmpConnectionShutdown(); |
320e9f36 | 647 | #endif |
eb824054 | 648 | #if USE_WCCP |
62e76326 | 649 | |
0b0cfcf2 | 650 | wccpConnectionClose(); |
651 | #endif | |
652 | #if USE_WCCPv2 | |
653 | ||
654 | wccp2ConnectionClose(); | |
15df8349 | 655 | #endif |
62e76326 | 656 | |
4bac8de8 | 657 | asnFreeMemory(); |
5f3f8d0e | 658 | } |
659 | ||
b8d8561b | 660 | static void |
9b7292ce | 661 | mainReconfigure(void) |
662 | { | |
bf8fe701 | 663 | debugs(1, 1, "Reconfiguring Squid Cache (version " << version_string << ")..."); |
5cd39a10 | 664 | reconfiguring = 1; |
0ffd22bc | 665 | /* Already called serverConnectionsClose and ipcacheShutdownServers() */ |
15df8349 | 666 | serverConnectionsClose(); |
17e6c0a1 | 667 | icpConnectionClose(); |
72549e05 | 668 | #if USE_HTCP |
62e76326 | 669 | |
72549e05 | 670 | htcpSocketClose(); |
671 | #endif | |
17e6c0a1 | 672 | #ifdef SQUID_SNMP |
62e76326 | 673 | |
17e6c0a1 | 674 | snmpConnectionClose(); |
320e9f36 | 675 | #endif |
3c573763 | 676 | #if USE_DNSSERVERS |
62e76326 | 677 | |
74addf6c | 678 | dnsShutdown(); |
3c573763 | 679 | #else |
62e76326 | 680 | |
7b724b86 | 681 | idnsShutdown(); |
eb824054 | 682 | #endif |
62e76326 | 683 | |
74addf6c | 684 | redirectShutdown(); |
685 | authenticateShutdown(); | |
d9572179 | 686 | externalAclShutdown(); |
2db68ce5 | 687 | storeDirCloseSwapLogs(); |
2e923080 | 688 | storeLogClose(); |
689 | accessLogClose(); | |
690 | useragentLogClose(); | |
691 | refererCloseLog(); | |
c68e9c6b | 692 | errorClean(); |
3aa4adbc | 693 | enter_suid(); /* root to read config file */ |
dd9b1081 | 694 | parseConfigFile(ConfigFile); |
c642c141 | 695 | setUmask(Config.umask); |
97244680 | 696 | Mem::Report(); |
3aa4adbc | 697 | setEffectiveUser(); |
b6f794d6 | 698 | _db_init(Config.Log.log, Config.debugOptions); |
429fdbec | 699 | ipcache_restart(); /* clear stuck entries */ |
94439e4e | 700 | authenticateUserCacheRestart(); /* clear stuck ACL entries */ |
429fdbec | 701 | fqdncache_restart(); /* sigh, fqdncache too */ |
0e70aa1e | 702 | parseEtcHosts(); |
53ad48e6 | 703 | errorInitialize(); /* reload error pages */ |
2e923080 | 704 | accessLogInit(); |
705 | storeLogOpen(); | |
706 | useragentOpenLog(); | |
707 | refererOpenLog(); | |
3c573763 | 708 | #if USE_DNSSERVERS |
62e76326 | 709 | |
74addf6c | 710 | dnsInit(); |
3c573763 | 711 | #else |
62e76326 | 712 | |
7b724b86 | 713 | idnsInit(); |
eb824054 | 714 | #endif |
62e76326 | 715 | |
74addf6c | 716 | redirectInit(); |
e6ccf245 | 717 | authenticateInit(&Config.authConfiguration); |
d9572179 | 718 | externalAclInit(); |
1f38f50a | 719 | #if USE_WCCP |
62e76326 | 720 | |
1f38f50a | 721 | wccpInit(); |
722 | #endif | |
0b0cfcf2 | 723 | #if USE_WCCPv2 |
724 | ||
725 | wccp2Init(); | |
726 | #endif | |
62e76326 | 727 | |
0ffd22bc | 728 | serverConnectionsOpen(); |
9c2e9b50 | 729 | |
3ee2b4f8 | 730 | neighbors_init(); |
9c2e9b50 | 731 | |
2db68ce5 | 732 | storeDirOpenSwapLogs(); |
9c2e9b50 | 733 | |
9c021a38 | 734 | mimeInit(Config.mimeTablePathname); |
9c2e9b50 | 735 | |
926375e6 | 736 | if (Config.onoff.announce) { |
737 | if (!eventFind(start_announce, NULL)) | |
738 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
739 | } else { | |
740 | if (eventFind(start_announce, NULL)) | |
741 | eventDelete(start_announce, NULL); | |
742 | } | |
743 | ||
b8890359 | 744 | writePidFile(); /* write PID file */ |
9c2e9b50 | 745 | |
bf8fe701 | 746 | debugs(1, 1, "Ready to serve requests."); |
9c2e9b50 | 747 | |
5cd39a10 | 748 | reconfiguring = 0; |
749 | } | |
750 | ||
751 | static void | |
9b7292ce | 752 | mainRotate(void) |
753 | { | |
cc192b50 | 754 | icmpEngine.Close(); |
3c573763 | 755 | #if USE_DNSSERVERS |
62e76326 | 756 | |
e40aa8da | 757 | dnsShutdown(); |
3c573763 | 758 | #endif |
62e76326 | 759 | |
e40aa8da | 760 | redirectShutdown(); |
761 | authenticateShutdown(); | |
d9572179 | 762 | externalAclShutdown(); |
5cd39a10 | 763 | _db_rotate_log(); /* cache.log */ |
764 | storeDirWriteCleanLogs(1); | |
765 | storeLogRotate(); /* store.log */ | |
766 | accessLogRotate(); /* access.log */ | |
767 | useragentRotateLog(); /* useragent.log */ | |
fd2c5549 | 768 | refererRotateLog(); /* referer.log */ |
225644d7 | 769 | #if WIP_FWD_LOG |
62e76326 | 770 | |
225644d7 | 771 | fwdLogRotate(); |
772 | #endif | |
62e76326 | 773 | |
cc192b50 | 774 | icmpEngine.Open(); |
3c573763 | 775 | #if USE_DNSSERVERS |
62e76326 | 776 | |
e40aa8da | 777 | dnsInit(); |
3c573763 | 778 | #endif |
62e76326 | 779 | |
e40aa8da | 780 | redirectInit(); |
e6ccf245 | 781 | authenticateInit(&Config.authConfiguration); |
d9572179 | 782 | externalAclInit(); |
5f3f8d0e | 783 | } |
784 | ||
067bea91 | 785 | static void |
9b7292ce | 786 | setEffectiveUser(void) |
787 | { | |
fc68f6b1 | 788 | keepCapabilities(); |
85407535 | 789 | leave_suid(); /* Run as non privilegied user */ |
cd377065 | 790 | #ifdef _SQUID_OS2_ |
62e76326 | 791 | |
cd377065 | 792 | return; |
793 | #endif | |
62e76326 | 794 | |
85407535 | 795 | if (geteuid() == 0) { |
bf8fe701 | 796 | debugs(0, 0, "Squid is not safe to run as root! If you must"); |
797 | debugs(0, 0, "start Squid as root, then you must configure"); | |
798 | debugs(0, 0, "it to run as a non-priveledged user with the"); | |
799 | debugs(0, 0, "'cache_effective_user' option in the config file."); | |
62e76326 | 800 | fatal("Don't run Squid as root, set 'cache_effective_user'!"); |
85407535 | 801 | } |
802 | } | |
803 | ||
b6a2f15e | 804 | static void |
9b7292ce | 805 | mainSetCwd(void) |
806 | { | |
4a504376 | 807 | char pathbuf[MAXPATHLEN]; |
62e76326 | 808 | |
b6a2f15e | 809 | if (Config.coredump_dir) { |
62e76326 | 810 | if (0 == strcmp("none", Config.coredump_dir)) { |
811 | (void) 0; | |
812 | } else if (chdir(Config.coredump_dir) == 0) { | |
bf8fe701 | 813 | debugs(0, 1, "Set Current Directory to " << Config.coredump_dir); |
62e76326 | 814 | return; |
815 | } else { | |
bf8fe701 | 816 | debugs(50, 0, "chdir: " << Config.coredump_dir << ": " << xstrerror()); |
62e76326 | 817 | } |
b6a2f15e | 818 | } |
62e76326 | 819 | |
02e8115e | 820 | /* If we don't have coredump_dir or couldn't cd there, report current dir */ |
4a504376 | 821 | if (getcwd(pathbuf, MAXPATHLEN)) { |
bf8fe701 | 822 | debugs(0, 1, "Current Directory is " << pathbuf); |
4a504376 | 823 | } else { |
bf8fe701 | 824 | debugs(50, 0, "WARNING: Can't find current directory, getcwd: " << xstrerror()); |
4a504376 | 825 | } |
b6a2f15e | 826 | } |
827 | ||
b67e2c8c | 828 | #if DELAY_POOLS |
829 | #include "DelayPools.h" | |
830 | #endif | |
831 | ||
b8d8561b | 832 | static void |
9b7292ce | 833 | mainInitialize(void) |
834 | { | |
efd900cb | 835 | /* chroot if configured to run inside chroot */ |
62e76326 | 836 | |
64b0a10d | 837 | if (Config.chroot_dir && (chroot(Config.chroot_dir) != 0 || chdir("/") != 0)) { |
62e76326 | 838 | fatal("failed to chroot"); |
efd900cb | 839 | } |
62e76326 | 840 | |
1758c627 | 841 | if (opt_catch_signals) { |
62e76326 | 842 | squid_signal(SIGSEGV, death, SA_NODEFER | SA_RESETHAND); |
843 | squid_signal(SIGBUS, death, SA_NODEFER | SA_RESETHAND); | |
44f99671 | 844 | } |
62e76326 | 845 | |
30a4f2a8 | 846 | squid_signal(SIGPIPE, SIG_IGN, SA_RESTART); |
847 | squid_signal(SIGCHLD, sig_child, SA_NODEFER | SA_RESTART); | |
44f99671 | 848 | |
85407535 | 849 | setEffectiveUser(); |
62e76326 | 850 | |
30a4f2a8 | 851 | if (icpPortNumOverride != 1) |
62e76326 | 852 | Config.Port.icp = (u_short) icpPortNumOverride; |
30a4f2a8 | 853 | |
b6f794d6 | 854 | _db_init(Config.Log.log, Config.debugOptions); |
62e76326 | 855 | |
5c5783a2 | 856 | fd_open(fileno(debug_log), FD_LOG, Config.Log.log); |
62e76326 | 857 | |
71a17702 | 858 | #if MEM_GEN_TRACE |
62e76326 | 859 | |
71a17702 | 860 | log_trace_init("/tmp/squid.alloc"); |
62e76326 | 861 | |
71a17702 | 862 | #endif |
62e76326 | 863 | |
bf8fe701 | 864 | debugs(1, 0, "Starting Squid Cache version " << version_string << " for " << CONFIG_HOST_TYPE << "..."); |
62e76326 | 865 | |
ec4daaa5 | 866 | #ifdef _SQUID_WIN32_ |
b293c4d8 | 867 | |
868 | if (WIN32_run_mode == _WIN_SQUID_RUN_MODE_SERVICE) { | |
bf8fe701 | 869 | debugs(1, 0, "Running as " << WIN32_Service_name << " Windows System Service on " << WIN32_OS_string); |
870 | debugs(1, 0, "Service command line is: " << WIN32_Service_Command_Line); | |
b293c4d8 | 871 | } else |
bf8fe701 | 872 | debugs(1, 0, "Running on " << WIN32_OS_string); |
b293c4d8 | 873 | |
874 | #endif | |
875 | ||
36584579 | 876 | debugs(1, 1, "Process ID " << getpid()); |
62e76326 | 877 | |
bf8fe701 | 878 | debugs(1, 1, "With " << Squid_MaxFD << " file descriptors available"); |
5f3f8d0e | 879 | |
6c1962dd | 880 | #ifdef _SQUID_MSWIN_ |
881 | ||
bf8fe701 | 882 | debugs(1, 1, "With " << _getmaxstdio() << " CRT stdio descriptors available"); |
6c1962dd | 883 | |
884 | if (WIN32_Socks_initialized) | |
bf8fe701 | 885 | debugs(1, 1, "Windows sockets initialized"); |
6c1962dd | 886 | |
babd1fd5 | 887 | if (WIN32_OS_version > _WIN_OS_WINNT) { |
888 | WIN32_IpAddrChangeMonitorInit(); | |
889 | } | |
890 | ||
6c1962dd | 891 | #endif |
892 | ||
9f75c559 | 893 | if (!configured_once) |
62e76326 | 894 | disk_init(); /* disk_init must go before ipcache_init() */ |
895 | ||
5f3f8d0e | 896 | ipcache_init(); |
62e76326 | 897 | |
f88bb09c | 898 | fqdncache_init(); |
62e76326 | 899 | |
0e70aa1e | 900 | parseEtcHosts(); |
62e76326 | 901 | |
3c573763 | 902 | #if USE_DNSSERVERS |
62e76326 | 903 | |
74addf6c | 904 | dnsInit(); |
62e76326 | 905 | |
3c573763 | 906 | #else |
62e76326 | 907 | |
7b724b86 | 908 | idnsInit(); |
62e76326 | 909 | |
eb824054 | 910 | #endif |
62e76326 | 911 | |
74addf6c | 912 | redirectInit(); |
62e76326 | 913 | |
e6ccf245 | 914 | authenticateInit(&Config.authConfiguration); |
62e76326 | 915 | |
d9572179 | 916 | externalAclInit(); |
62e76326 | 917 | |
b012353a | 918 | useragentOpenLog(); |
62e76326 | 919 | |
fd2c5549 | 920 | refererOpenLog(); |
62e76326 | 921 | |
2ac76861 | 922 | httpHeaderInitModule(); /* must go before any header processing (e.g. the one in errorInitialize) */ |
62e76326 | 923 | |
2246b732 | 924 | httpReplyInitModule(); /* must go before accepting replies */ |
62e76326 | 925 | |
9b312a19 | 926 | errorInitialize(); |
62e76326 | 927 | |
7a2f978b | 928 | accessLogInit(); |
62e76326 | 929 | |
3898f57f | 930 | #if USE_IDENT |
62e76326 | 931 | |
05832ae1 | 932 | identInit(); |
62e76326 | 933 | |
3898f57f | 934 | #endif |
5e14bf6d | 935 | #ifdef SQUID_SNMP |
62e76326 | 936 | |
5e14bf6d | 937 | snmpInit(); |
62e76326 | 938 | |
5e14bf6d | 939 | #endif |
30a4f2a8 | 940 | #if MALLOC_DBG |
62e76326 | 941 | |
5f3f8d0e | 942 | malloc_debug(0, malloc_debug_level); |
62e76326 | 943 | |
5f3f8d0e | 944 | #endif |
945 | ||
dbe4fd8e | 946 | if (!configured_once) { |
a3d0a19d | 947 | #if USE_UNLINKD |
62e76326 | 948 | unlinkdInit(); |
949 | #endif | |
950 | ||
951 | urlInitialize(); | |
62e76326 | 952 | statInit(); |
953 | storeInit(); | |
954 | mainSetCwd(); | |
955 | /* after this point we want to see the mallinfo() output */ | |
956 | do_mallinfo = 1; | |
957 | mimeInit(Config.mimeTablePathname); | |
62e76326 | 958 | refreshInit(); |
0d7e5d78 | 959 | #if DELAY_POOLS |
62e76326 | 960 | |
961 | DelayPools::Init(); | |
0d7e5d78 | 962 | #endif |
62e76326 | 963 | |
b6b6f466 | 964 | FwdState::initModule(); |
62ee09ca | 965 | /* register the modules in the cache manager menus */ |
62ee09ca | 966 | |
a08f1b5a | 967 | cbdataRegisterWithCacheManager(); |
62ee09ca | 968 | /* These use separate calls so that the comm loops can eventually |
969 | * coexist. | |
970 | */ | |
62ee09ca | 971 | |
15b3c0d7 | 972 | eventInit(); |
6b7d87bb | 973 | |
6852be71 FC |
974 | // TODO: pconn is a good candidate for new-style registration |
975 | // PconnModule::GetInstance()->registerWithCacheManager(); | |
976 | // moved to PconnModule::PconnModule() | |
5f3f8d0e | 977 | } |
62e76326 | 978 | |
1f38f50a | 979 | #if USE_WCCP |
980 | wccpInit(); | |
62e76326 | 981 | |
0b0cfcf2 | 982 | #endif |
983 | #if USE_WCCPv2 | |
984 | ||
985 | wccp2Init(); | |
986 | ||
1f38f50a | 987 | #endif |
62e76326 | 988 | |
2285407f | 989 | serverConnectionsOpen(); |
62e76326 | 990 | |
3ee2b4f8 | 991 | neighbors_init(); |
fc68f6b1 | 992 | |
5f5e883f | 993 | // neighborsRegisterWithCacheManager(); //moved to neighbors_init() |
62e76326 | 994 | |
efd900cb | 995 | if (Config.chroot_dir) |
62e76326 | 996 | no_suid(); |
997 | ||
dbe4fd8e | 998 | if (!configured_once) |
62e76326 | 999 | writePidFile(); /* write PID file */ |
0a5b9b32 | 1000 | |
7e7a0442 | 1001 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 1002 | |
e3175d1f | 1003 | squid_signal(SIGQUIT, rotate_logs, SA_RESTART); |
62e76326 | 1004 | |
e3175d1f | 1005 | squid_signal(SIGTRAP, sigusr2_handle, SA_RESTART); |
62e76326 | 1006 | |
e3175d1f | 1007 | #else |
62e76326 | 1008 | |
30a4f2a8 | 1009 | squid_signal(SIGUSR1, rotate_logs, SA_RESTART); |
62e76326 | 1010 | |
30a4f2a8 | 1011 | squid_signal(SIGUSR2, sigusr2_handle, SA_RESTART); |
62e76326 | 1012 | |
9fc0b4b8 | 1013 | #endif |
62e76326 | 1014 | |
30a4f2a8 | 1015 | squid_signal(SIGHUP, reconfigure, SA_RESTART); |
62e76326 | 1016 | |
30a4f2a8 | 1017 | squid_signal(SIGTERM, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1018 | |
30a4f2a8 | 1019 | squid_signal(SIGINT, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1020 | |
ae1feb30 | 1021 | #ifdef SIGTTIN |
1022 | ||
1023 | squid_signal(SIGTTIN, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); | |
1024 | ||
1025 | #endif | |
1026 | ||
58a39dc9 | 1027 | memCheckInit(); |
62e76326 | 1028 | |
57afc994 AR |
1029 | #if USE_LOADABLE_MODULES |
1030 | LoadableModulesConfigure(Config.loadable_module_names); | |
1031 | #endif | |
1032 | ||
8f361c50 AR |
1033 | #if USE_ADAPTATION |
1034 | bool enableAdaptation = false; | |
1035 | ||
1036 | // We can remove this dependency on specific adaptation mechanisms | |
1037 | // if we create a generic Registry of such mechanisms. Should we? | |
b958cb0f AR |
1038 | #if ICAP_CLIENT |
1039 | TheICAPConfig.finalize(); // must be after we load modules | |
8f361c50 | 1040 | enableAdaptation = TheICAPConfig.onoff; |
b958cb0f | 1041 | #endif |
8f361c50 AR |
1042 | // same for eCAP |
1043 | ||
1044 | // must be the last adaptation-related finalize | |
1045 | Adaptation::Config::Finalize(enableAdaptation); | |
b958cb0f AR |
1046 | #endif |
1047 | ||
1048 | ||
bf8fe701 | 1049 | debugs(1, 1, "Ready to serve requests."); |
62e76326 | 1050 | |
dbe4fd8e | 1051 | if (!configured_once) { |
c8f4eac4 | 1052 | eventAdd("storeMaintain", Store::Maintain, NULL, 1.0, 1); |
62e76326 | 1053 | |
1054 | if (Config.onoff.announce) | |
1055 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
1056 | ||
1057 | eventAdd("ipcache_purgelru", ipcache_purgelru, NULL, 10.0, 1); | |
1058 | ||
1059 | eventAdd("fqdncache_purgelru", fqdncache_purgelru, NULL, 15.0, 1); | |
1060 | ||
88bfe092 | 1061 | #if USE_XPROF_STATS |
62e76326 | 1062 | |
1063 | eventAdd("cpuProfiling", xprof_event, NULL, 1.0, 1); | |
1064 | ||
88bfe092 | 1065 | #endif |
62e76326 | 1066 | |
1067 | eventAdd("memPoolCleanIdlePools", Mem::CleanIdlePools, NULL, 15.0, 1); | |
f900210a | 1068 | |
1069 | eventAdd("commCheckHalfClosed", commCheckHalfClosed, NULL, 1.0, false); | |
4d7add01 | 1070 | } |
62e76326 | 1071 | |
dbe4fd8e | 1072 | configured_once = 1; |
4d64d74a | 1073 | } |
1074 | ||
6c1962dd | 1075 | #if USE_WIN32_SERVICE |
1076 | /* When USE_WIN32_SERVICE is defined, the main function is placed in win32.cc */ | |
1077 | extern "C" void WINAPI | |
a0aa9e74 | 1078 | SquidWinSvcMain(int argc, char **argv) |
1079 | { | |
1080 | SquidMain(argc, argv); | |
1081 | } | |
1082 | ||
1083 | int | |
1084 | SquidMain(int argc, char **argv) | |
6c1962dd | 1085 | #else |
b8d8561b | 1086 | int |
1087 | main(int argc, char **argv) | |
9b7292ce | 1088 | #endif |
1089 | { | |
a0aa9e74 | 1090 | #ifdef _SQUID_WIN32_ |
1091 | ||
1092 | int WIN32_init_err; | |
1093 | #endif | |
4d64d74a | 1094 | |
a4ba1105 | 1095 | #if HAVE_SBRK |
62e76326 | 1096 | |
9b7292ce | 1097 | sbrk_start = sbrk(0); |
a4ba1105 | 1098 | #endif |
1099 | ||
fb6a61d1 | 1100 | Debug::parseOptions(NULL); |
9b7292ce | 1101 | debug_log = stderr; |
62e76326 | 1102 | |
b9269882 | 1103 | #if defined(SQUID_MAXFD_LIMIT) |
1104 | ||
1105 | if (SQUID_MAXFD_LIMIT < Squid_MaxFD) | |
1106 | Squid_MaxFD = SQUID_MAXFD_LIMIT; | |
1107 | ||
1108 | #endif | |
399e85ea | 1109 | |
ec4daaa5 | 1110 | #ifdef _SQUID_WIN32_ |
6c1962dd | 1111 | |
a0aa9e74 | 1112 | if ((WIN32_init_err = WIN32_Subsystem_Init(&argc, &argv))) |
1113 | return WIN32_init_err; | |
62e76326 | 1114 | |
0e6d05ef | 1115 | #endif |
1116 | ||
9b7292ce | 1117 | /* call mallopt() before anything else */ |
0b29fe44 | 1118 | #if HAVE_MALLOPT |
7328e889 | 1119 | #ifdef M_GRAIN |
9b7292ce | 1120 | /* Round up all sizes to a multiple of this */ |
1121 | mallopt(M_GRAIN, 16); | |
62e76326 | 1122 | |
7328e889 | 1123 | #endif |
1124 | #ifdef M_MXFAST | |
9b7292ce | 1125 | /* biggest size that is considered a small block */ |
1126 | mallopt(M_MXFAST, 256); | |
62e76326 | 1127 | |
7328e889 | 1128 | #endif |
1129 | #ifdef M_NBLKS | |
9b7292ce | 1130 | /* allocate this many small blocks at once */ |
1131 | mallopt(M_NLBLKS, 32); | |
62e76326 | 1132 | |
7328e889 | 1133 | #endif |
1134 | #endif /* HAVE_MALLOPT */ | |
1135 | ||
9b7292ce | 1136 | squid_srandom(time(NULL)); |
4d64d74a | 1137 | |
9b7292ce | 1138 | getCurrentTime(); |
62e76326 | 1139 | |
9b7292ce | 1140 | squid_start = current_time; |
62e76326 | 1141 | |
9b7292ce | 1142 | failure_notify = fatal_dump; |
4d64d74a | 1143 | |
6c1962dd | 1144 | #if USE_WIN32_SERVICE |
1145 | ||
9b7292ce | 1146 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1147 | |
1148 | #endif | |
1149 | ||
9b7292ce | 1150 | mainParseOptions(argc, argv); |
4d64d74a | 1151 | |
9aae6be3 | 1152 | if (opt_parse_cfg_only) { |
1153 | Debug::parseOptions("ALL,1"); | |
1154 | } | |
1155 | ||
6c1962dd | 1156 | #if USE_WIN32_SERVICE |
1157 | ||
a0aa9e74 | 1158 | if (opt_install_service) |
1159 | { | |
9b7292ce | 1160 | WIN32_InstallService(); |
a0aa9e74 | 1161 | return 0; |
9b7292ce | 1162 | } |
6c1962dd | 1163 | |
a0aa9e74 | 1164 | if (opt_remove_service) |
1165 | { | |
9b7292ce | 1166 | WIN32_RemoveService(); |
a0aa9e74 | 1167 | return 0; |
9b7292ce | 1168 | } |
6c1962dd | 1169 | |
a0aa9e74 | 1170 | if (opt_command_line) |
1171 | { | |
9b7292ce | 1172 | WIN32_SetServiceCommandLine(); |
a0aa9e74 | 1173 | return 0; |
9b7292ce | 1174 | } |
6c1962dd | 1175 | |
1176 | #endif | |
1177 | ||
9b7292ce | 1178 | /* parse configuration file |
1179 | * note: in "normal" case this used to be called from mainInitialize() */ | |
1180 | { | |
1181 | int parse_err; | |
62e76326 | 1182 | |
9b7292ce | 1183 | if (!ConfigFile) |
1184 | ConfigFile = xstrdup(DefaultConfigFile); | |
62e76326 | 1185 | |
9b7292ce | 1186 | assert(!configured_once); |
62e76326 | 1187 | |
9b7292ce | 1188 | Mem::Init(); |
62e76326 | 1189 | |
9b7292ce | 1190 | storeFsInit(); /* required for config parsing */ |
62e76326 | 1191 | |
b9ae18aa | 1192 | /* May not be needed for parsing, have not audited for such */ |
1193 | DiskIOModule::SetupAllModules(); | |
1194 | ||
59b2d47f | 1195 | /* Shouldn't be needed for config parsing, but have not audited for such */ |
1196 | StoreFileSystem::SetupAllFs(); | |
1197 | ||
c8f4eac4 | 1198 | /* we may want the parsing process to set this up in the future */ |
1199 | Store::Root(new StoreController); | |
1200 | ||
dd9b1081 | 1201 | parse_err = parseConfigFile(ConfigFile); |
62e76326 | 1202 | |
97244680 | 1203 | Mem::Report(); |
1204 | ||
9b7292ce | 1205 | if (opt_parse_cfg_only) |
6c1962dd | 1206 | |
9b7292ce | 1207 | return parse_err; |
9b7292ce | 1208 | } |
c642c141 | 1209 | setUmask(Config.umask); |
9b7292ce | 1210 | if (-1 == opt_send_signal) |
1211 | if (checkRunningPid()) | |
1212 | exit(1); | |
e13ee7ad | 1213 | |
9bc73deb | 1214 | #if TEST_ACCESS |
62e76326 | 1215 | |
95564b0d | 1216 | comm_init(); |
62e76326 | 1217 | |
9b7292ce | 1218 | comm_select_init(); |
62e76326 | 1219 | |
9b7292ce | 1220 | mainInitialize(); |
62e76326 | 1221 | |
9b7292ce | 1222 | test_access(); |
62e76326 | 1223 | |
9b7292ce | 1224 | return 0; |
62e76326 | 1225 | |
9bc73deb | 1226 | #endif |
1227 | ||
9b7292ce | 1228 | /* send signal to running copy and exit */ |
a0aa9e74 | 1229 | if (opt_send_signal != -1) |
1230 | { | |
9b7292ce | 1231 | /* chroot if configured to run inside chroot */ |
62e76326 | 1232 | |
a572d8be | 1233 | if (Config.chroot_dir) { |
1234 | if (chroot(Config.chroot_dir)) | |
1235 | fatal("failed to chroot"); | |
1236 | ||
1237 | no_suid(); | |
1238 | } else { | |
1239 | leave_suid(); | |
9b7292ce | 1240 | } |
62e76326 | 1241 | |
9b7292ce | 1242 | sendSignal(); |
1243 | /* NOTREACHED */ | |
1244 | } | |
62e76326 | 1245 | |
a0aa9e74 | 1246 | if (opt_create_swap_dirs) |
1247 | { | |
9b7292ce | 1248 | /* chroot if configured to run inside chroot */ |
0e657244 | 1249 | |
9b7292ce | 1250 | if (Config.chroot_dir && chroot(Config.chroot_dir)) { |
1251 | fatal("failed to chroot"); | |
1252 | } | |
62e76326 | 1253 | |
9b7292ce | 1254 | setEffectiveUser(); |
bf8fe701 | 1255 | debugs(0, 0, "Creating Swap Directories"); |
c8f4eac4 | 1256 | Store::Root().create(); |
6c1962dd | 1257 | |
9b7292ce | 1258 | return 0; |
9b7292ce | 1259 | } |
62e76326 | 1260 | |
9b7292ce | 1261 | if (!opt_no_daemon) |
1262 | watch_child(argv); | |
62e76326 | 1263 | |
95564b0d | 1264 | setMaxFD(); |
1265 | ||
1266 | /* init comm module */ | |
1267 | comm_init(); | |
62e76326 | 1268 | |
9b7292ce | 1269 | comm_select_init(); |
4d64d74a | 1270 | |
a0aa9e74 | 1271 | if (opt_no_daemon) |
1272 | { | |
9b7292ce | 1273 | /* we have to init fdstat here. */ |
1274 | fd_open(0, FD_LOG, "stdin"); | |
1275 | fd_open(1, FD_LOG, "stdout"); | |
1276 | fd_open(2, FD_LOG, "stderr"); | |
1277 | } | |
62e76326 | 1278 | |
6c1962dd | 1279 | #if USE_WIN32_SERVICE |
1280 | ||
9b7292ce | 1281 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1282 | |
1283 | #endif | |
1284 | ||
9b7292ce | 1285 | mainInitialize(); |
4d64d74a | 1286 | |
6c1962dd | 1287 | #if USE_WIN32_SERVICE |
1288 | ||
9b7292ce | 1289 | WIN32_svcstatusupdate(SERVICE_RUNNING, 0); |
6c1962dd | 1290 | |
1291 | #endif | |
1292 | ||
9b7292ce | 1293 | /* main loop */ |
a553a5a3 | 1294 | EventLoop mainLoop; |
62e76326 | 1295 | |
9688b0ae | 1296 | SignalEngine signalEngine(mainLoop); |
6c1962dd | 1297 | |
9688b0ae | 1298 | mainLoop.registerEngine(&signalEngine); |
62e76326 | 1299 | |
8ff3fa2e | 1300 | /* TODO: stop requiring the singleton here */ |
1301 | mainLoop.registerEngine(EventScheduler::GetInstance()); | |
62e76326 | 1302 | |
8ff3fa2e | 1303 | StoreRootEngine store_engine; |
615f9581 | 1304 | |
8ff3fa2e | 1305 | mainLoop.registerEngine(&store_engine); |
a774fd3f | 1306 | |
8ff3fa2e | 1307 | CommSelectEngine comm_engine; |
1308 | ||
8ff3fa2e | 1309 | mainLoop.registerEngine(&comm_engine); |
1310 | ||
bef81ea5 | 1311 | mainLoop.setPrimaryEngine(&comm_engine); |
1312 | ||
8ff3fa2e | 1313 | /* use the standard time service */ |
1314 | TimeEngine time_engine; | |
1315 | ||
1316 | mainLoop.setTimeService(&time_engine); | |
1317 | ||
1318 | mainLoop.run(); | |
1319 | ||
1320 | if (mainLoop.errcount == 10) | |
1321 | fatal_dump("Event loop exited with failure."); | |
1322 | ||
1323 | /* shutdown squid now */ | |
1324 | SquidShutdown(); | |
62e76326 | 1325 | |
9b7292ce | 1326 | /* NOTREACHED */ |
9b7292ce | 1327 | return 0; |
090089c4 | 1328 | } |
7690e8eb | 1329 | |
b8d8561b | 1330 | static void |
0673c0ba | 1331 | sendSignal(void) |
7690e8eb | 1332 | { |
ff8d0ea6 | 1333 | pid_t pid; |
fedac7e5 | 1334 | debug_log = stderr; |
258ac4d7 | 1335 | |
1336 | if (strcmp(Config.pidFilename, "none") == 0) { | |
bf8fe701 | 1337 | debugs(0, 1, "No pid_filename specified. Trusting you know what you are doing."); |
258ac4d7 | 1338 | } |
1339 | ||
fedac7e5 | 1340 | pid = readPidFile(); |
62e76326 | 1341 | |
fedac7e5 | 1342 | if (pid > 1) { |
6c1962dd | 1343 | #if USE_WIN32_SERVICE |
1344 | ||
1345 | if (opt_signal_service) { | |
1346 | WIN32_sendSignal(opt_send_signal); | |
1347 | exit(0); | |
1348 | } else | |
1349 | #ifdef _SQUID_MSWIN_ | |
1350 | { | |
7dbca7a4 | 1351 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
6c1962dd | 1352 | fprintf(stderr, "signal to Squid Service:\n"); |
1353 | fprintf(stderr, "missing -n command line switch.\n"); | |
1354 | exit(1); | |
1355 | } | |
1356 | ||
1357 | /* NOTREACHED */ | |
1358 | #endif | |
1359 | ||
1360 | #endif | |
1361 | ||
62e76326 | 1362 | if (kill(pid, opt_send_signal) && |
1363 | /* ignore permissions if just running check */ | |
1364 | !(opt_send_signal == 0 && errno == EPERM)) { | |
7dbca7a4 | 1365 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
62e76326 | 1366 | fprintf(stderr, "signal %d to process %d: %s\n", |
1367 | opt_send_signal, (int) pid, xstrerror()); | |
1368 | exit(1); | |
1369 | } | |
fedac7e5 | 1370 | } else { |
7dbca7a4 | 1371 | fprintf(stderr, "%s: ERROR: No running copy\n", APP_SHORTNAME); |
62e76326 | 1372 | exit(1); |
7690e8eb | 1373 | } |
62e76326 | 1374 | |
fedac7e5 | 1375 | /* signal successfully sent */ |
1376 | exit(0); | |
1377 | } | |
f95b8144 | 1378 | |
a50bfe93 | 1379 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 1380 | /* |
1381 | * This function is run when Squid is in daemon mode, just | |
1382 | * before the parent forks and starts up the child process. | |
1383 | * It can be used for admin-specific tasks, such as notifying | |
1384 | * someone that Squid is (re)started. | |
1385 | */ | |
1386 | static void | |
1387 | mainStartScript(const char *prog) | |
1388 | { | |
1389 | char script[SQUID_MAXPATHLEN]; | |
1390 | char *t; | |
1391 | size_t sl = 0; | |
1392 | pid_t cpid; | |
1393 | pid_t rpid; | |
1394 | xstrncpy(script, prog, MAXPATHLEN); | |
62e76326 | 1395 | |
e18d7fdc | 1396 | if ((t = strrchr(script, '/'))) { |
62e76326 | 1397 | *(++t) = '\0'; |
1398 | sl = strlen(script); | |
e18d7fdc | 1399 | } |
62e76326 | 1400 | |
e18d7fdc | 1401 | xstrncpy(&script[sl], squid_start_script, MAXPATHLEN - sl); |
62e76326 | 1402 | |
e18d7fdc | 1403 | if ((cpid = fork()) == 0) { |
62e76326 | 1404 | /* child */ |
f75662c9 | 1405 | execl(script, squid_start_script, (char *)NULL); |
482aa790 | 1406 | _exit(-1); |
e18d7fdc | 1407 | } else { |
62e76326 | 1408 | do { |
e18d7fdc | 1409 | #ifdef _SQUID_NEXT_ |
62e76326 | 1410 | union wait status; |
1411 | rpid = wait3(&status, 0, NULL); | |
e18d7fdc | 1412 | #else |
62e76326 | 1413 | |
1414 | int status; | |
1415 | rpid = waitpid(-1, &status, 0); | |
e18d7fdc | 1416 | #endif |
62e76326 | 1417 | |
1418 | } while (rpid != cpid); | |
e18d7fdc | 1419 | } |
1420 | } | |
1421 | ||
a50bfe93 | 1422 | #endif /* _SQUID_MSWIN_ */ |
1423 | ||
efd900cb | 1424 | static int |
1425 | checkRunningPid(void) | |
1426 | { | |
1427 | pid_t pid; | |
e0077312 | 1428 | |
1429 | if (!debug_log) | |
1430 | debug_log = stderr; | |
1431 | ||
efd900cb | 1432 | pid = readPidFile(); |
62e76326 | 1433 | |
efd900cb | 1434 | if (pid < 2) |
62e76326 | 1435 | return 0; |
1436 | ||
efd900cb | 1437 | if (kill(pid, 0) < 0) |
62e76326 | 1438 | return 0; |
1439 | ||
cb7a4fcb | 1440 | debugs(0, 0, "Squid is already running! Process ID " << pid); |
62e76326 | 1441 | |
efd900cb | 1442 | return 1; |
1443 | } | |
1444 | ||
f95b8144 | 1445 | static void |
bbe199dc | 1446 | watch_child(char *argv[]) |
f95b8144 | 1447 | { |
a50bfe93 | 1448 | #ifndef _SQUID_MSWIN_ |
f95b8144 | 1449 | char *prog; |
f95b8144 | 1450 | int failcount = 0; |
1451 | time_t start; | |
1452 | time_t stop; | |
1453 | #ifdef _SQUID_NEXT_ | |
62e76326 | 1454 | |
f95b8144 | 1455 | union wait status; |
1456 | #else | |
62e76326 | 1457 | |
f95b8144 | 1458 | int status; |
1459 | #endif | |
62e76326 | 1460 | |
e3a3b845 | 1461 | pid_t pid; |
c99c5397 | 1462 | #ifdef TIOCNOTTY |
1463 | ||
54f742e7 | 1464 | int i; |
c99c5397 | 1465 | #endif |
1466 | ||
742724a4 | 1467 | int nullfd; |
62e76326 | 1468 | |
f95b8144 | 1469 | if (*(argv[0]) == '(') |
62e76326 | 1470 | return; |
1471 | ||
7dbca7a4 | 1472 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1473 | |
54f742e7 | 1474 | if ((pid = fork()) < 0) |
62e76326 | 1475 | syslog(LOG_ALERT, "fork failed: %s", xstrerror()); |
54f742e7 | 1476 | else if (pid > 0) |
62e76326 | 1477 | exit(0); |
1478 | ||
54f742e7 | 1479 | if (setsid() < 0) |
62e76326 | 1480 | syslog(LOG_ALERT, "setsid failed: %s", xstrerror()); |
1481 | ||
efd900cb | 1482 | closelog(); |
62e76326 | 1483 | |
54f742e7 | 1484 | #ifdef TIOCNOTTY |
62e76326 | 1485 | |
c4aefe96 | 1486 | if ((i = open("/dev/tty", O_RDWR | O_TEXT)) >= 0) { |
62e76326 | 1487 | ioctl(i, TIOCNOTTY, NULL); |
1488 | close(i); | |
54f742e7 | 1489 | } |
62e76326 | 1490 | |
54f742e7 | 1491 | #endif |
b05490a8 | 1492 | |
7f6ffd15 | 1493 | /* |
1494 | * RBCOLLINS - if cygwin stackdumps when squid is run without | |
1495 | * -N, check the cygwin1.dll version, it needs to be AT LEAST | |
1496 | * 1.1.3. execvp had a bit overflow error in a loop.. | |
1497 | */ | |
742724a4 | 1498 | /* Connect stdio to /dev/null in daemon mode */ |
4da086c4 | 1499 | nullfd = open(_PATH_DEVNULL, O_RDWR | O_TEXT); |
62e76326 | 1500 | |
e4a1325e | 1501 | if (nullfd < 0) |
4da086c4 | 1502 | fatalf(_PATH_DEVNULL " %s\n", xstrerror()); |
e4a1325e | 1503 | |
742724a4 | 1504 | dup2(nullfd, 0); |
62e76326 | 1505 | |
742724a4 | 1506 | if (opt_debug_stderr < 0) { |
62e76326 | 1507 | dup2(nullfd, 1); |
1508 | dup2(nullfd, 2); | |
742724a4 | 1509 | } |
62e76326 | 1510 | |
f95b8144 | 1511 | for (;;) { |
62e76326 | 1512 | mainStartScript(argv[0]); |
1513 | ||
1514 | if ((pid = fork()) == 0) { | |
1515 | /* child */ | |
7dbca7a4 | 1516 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1517 | prog = xstrdup(argv[0]); |
1518 | argv[0] = xstrdup("(squid)"); | |
1519 | execvp(prog, argv); | |
1520 | syslog(LOG_ALERT, "execvp failed: %s", xstrerror()); | |
1521 | } | |
1522 | ||
1523 | /* parent */ | |
7dbca7a4 | 1524 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1525 | |
1526 | syslog(LOG_NOTICE, "Squid Parent: child process %d started", pid); | |
1527 | ||
1528 | time(&start); | |
1529 | ||
1530 | squid_signal(SIGINT, SIG_IGN, SA_RESTART); | |
1531 | ||
f95b8144 | 1532 | #ifdef _SQUID_NEXT_ |
62e76326 | 1533 | |
1534 | pid = wait3(&status, 0, NULL); | |
1535 | ||
f95b8144 | 1536 | #else |
62e76326 | 1537 | |
1538 | pid = waitpid(-1, &status, 0); | |
1539 | ||
1540 | #endif | |
1541 | ||
1542 | time(&stop); | |
1543 | ||
1544 | if (WIFEXITED(status)) { | |
1545 | syslog(LOG_NOTICE, | |
1546 | "Squid Parent: child process %d exited with status %d", | |
1547 | pid, WEXITSTATUS(status)); | |
1548 | } else if (WIFSIGNALED(status)) { | |
1549 | syslog(LOG_NOTICE, | |
cc192b50 | 1550 | "Squid Parent: child process %d exited due to signal %d with status %d", |
1551 | pid, WTERMSIG(status), WEXITSTATUS(status)); | |
62e76326 | 1552 | } else { |
1553 | syslog(LOG_NOTICE, "Squid Parent: child process %d exited", pid); | |
1554 | } | |
1555 | ||
1556 | if (stop - start < 10) | |
1557 | failcount++; | |
1558 | else | |
1559 | failcount = 0; | |
1560 | ||
1561 | if (failcount == 5) { | |
1562 | syslog(LOG_ALERT, "Exiting due to repeated, frequent failures"); | |
1563 | exit(1); | |
1564 | } | |
1565 | ||
1566 | if (WIFEXITED(status)) | |
1567 | if (WEXITSTATUS(status) == 0) | |
1568 | exit(0); | |
1569 | ||
1570 | if (WIFSIGNALED(status)) { | |
1571 | switch (WTERMSIG(status)) { | |
1572 | ||
1573 | case SIGKILL: | |
1574 | exit(0); | |
1575 | break; | |
1576 | ||
06a0fbd3 | 1577 | case SIGINT: |
1578 | case SIGTERM: | |
1579 | syslog(LOG_ALERT, "Exiting due to unexpected forced shutdown"); | |
1580 | exit(1); | |
1581 | break; | |
1582 | ||
62e76326 | 1583 | default: |
1584 | break; | |
1585 | } | |
1586 | } | |
1587 | ||
1588 | squid_signal(SIGINT, SIG_DFL, SA_RESTART); | |
1589 | sleep(3); | |
f95b8144 | 1590 | } |
62e76326 | 1591 | |
bbe199dc | 1592 | /* NOTREACHED */ |
a50bfe93 | 1593 | #endif /* _SQUID_MSWIN_ */ |
a572d8be | 1594 | |
f95b8144 | 1595 | } |
fff6ad65 | 1596 | |
9ec1a1dc | 1597 | static void |
8ff3fa2e | 1598 | SquidShutdown() |
fff6ad65 | 1599 | { |
6c1962dd | 1600 | #if USE_WIN32_SERVICE |
1601 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1602 | #endif | |
1603 | ||
bf8fe701 | 1604 | debugs(1, 1, "Shutting down..."); |
95a83c22 | 1605 | #if USE_DNSSERVERS |
1606 | ||
1607 | dnsShutdown(); | |
1608 | #else | |
1609 | ||
1610 | idnsShutdown(); | |
1611 | #endif | |
1612 | ||
1613 | redirectShutdown(); | |
1614 | externalAclShutdown(); | |
d723bf6b | 1615 | icpConnectionClose(); |
1616 | #if USE_HTCP | |
62e76326 | 1617 | |
d723bf6b | 1618 | htcpSocketClose(); |
1619 | #endif | |
1620 | #ifdef SQUID_SNMP | |
62e76326 | 1621 | |
d723bf6b | 1622 | snmpConnectionClose(); |
320e9f36 | 1623 | #endif |
eb824054 | 1624 | #if USE_WCCP |
62e76326 | 1625 | |
320e9f36 | 1626 | wccpConnectionClose(); |
d723bf6b | 1627 | #endif |
0b0cfcf2 | 1628 | #if USE_WCCPv2 |
1629 | ||
1630 | wccp2ConnectionClose(); | |
1631 | #endif | |
62e76326 | 1632 | |
fff6ad65 | 1633 | releaseServerSockets(); |
d723bf6b | 1634 | commCloseAllSockets(); |
515ec4dc | 1635 | #if DELAY_POOLS |
62e76326 | 1636 | |
b67e2c8c | 1637 | DelayPools::FreePools(); |
515ec4dc | 1638 | #endif |
62e76326 | 1639 | |
5dae8514 | 1640 | authenticateShutdown(); |
6c1962dd | 1641 | #if USE_WIN32_SERVICE |
1642 | ||
1643 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1644 | #endif | |
62e76326 | 1645 | |
c8f4eac4 | 1646 | Store::Root().sync(); /* Flush pending object writes/unlinks */ |
4d075ba0 | 1647 | #if USE_UNLINKD |
1648 | ||
1649 | unlinkdClose(); /* after sync/flush */ | |
1650 | #endif | |
fc68f6b1 | 1651 | |
fff6ad65 | 1652 | storeDirWriteCleanLogs(0); |
1653 | PrintRusage(); | |
1654 | dumpMallocStats(); | |
c8f4eac4 | 1655 | Store::Root().sync(); /* Flush log writes */ |
fff6ad65 | 1656 | storeLogClose(); |
1657 | accessLogClose(); | |
5b824235 | 1658 | useragentLogClose(); |
c9b99797 | 1659 | refererCloseLog(); |
225644d7 | 1660 | #if WIP_FWD_LOG |
62e76326 | 1661 | |
225644d7 | 1662 | fwdUninit(); |
1663 | #endif | |
62e76326 | 1664 | |
c8f4eac4 | 1665 | Store::Root().sync(); /* Flush log close */ |
59b2d47f | 1666 | StoreFileSystem::FreeAllFs(); |
b9ae18aa | 1667 | DiskIOModule::FreeAllModules(); |
afec404b | 1668 | #if LEAK_CHECK_MODE && 0 /* doesn't work at the moment */ |
62e76326 | 1669 | |
fff6ad65 | 1670 | configFreeMemory(); |
1671 | storeFreeMemory(); | |
33ab18e8 | 1672 | /*stmemFreeMemory(); */ |
fff6ad65 | 1673 | netdbFreeMemory(); |
1674 | ipcacheFreeMemory(); | |
1675 | fqdncacheFreeMemory(); | |
1676 | asnFreeMemory(); | |
26a369ba | 1677 | clientdbFreeMemory(); |
7021844c | 1678 | httpHeaderCleanModule(); |
d2db411c | 1679 | statFreeMemory(); |
f1fc2a8d | 1680 | eventFreeMemory(); |
c68e9c6b | 1681 | mimeFreeMemory(); |
1682 | errorClean(); | |
fff6ad65 | 1683 | #endif |
26a369ba | 1684 | #if !XMALLOC_TRACE |
62e76326 | 1685 | |
54f742e7 | 1686 | if (opt_no_daemon) { |
62e76326 | 1687 | file_close(0); |
1688 | file_close(1); | |
1689 | file_close(2); | |
54f742e7 | 1690 | } |
62e76326 | 1691 | |
33ab18e8 | 1692 | #endif |
fff6ad65 | 1693 | fdDumpOpen(); |
62e76326 | 1694 | |
236d1779 | 1695 | comm_exit(); |
62e76326 | 1696 | |
ddb43c58 | 1697 | memClean(); |
62e76326 | 1698 | |
33ab18e8 | 1699 | #if XMALLOC_TRACE |
62e76326 | 1700 | |
26a369ba | 1701 | xmalloc_find_leaks(); |
62e76326 | 1702 | |
bf8fe701 | 1703 | debugs(1, 0, "Memory used after shutdown: " << xmalloc_total); |
62e76326 | 1704 | |
33ab18e8 | 1705 | #endif |
36a97e19 | 1706 | #if MEM_GEN_TRACE |
62e76326 | 1707 | |
399e85ea | 1708 | log_trace_done(); |
62e76326 | 1709 | |
36a97e19 | 1710 | #endif |
62e76326 | 1711 | |
ab50ee9e | 1712 | if (Config.pidFilename && strcmp(Config.pidFilename, "none") != 0) { |
62e76326 | 1713 | enter_suid(); |
1714 | safeunlink(Config.pidFilename, 0); | |
1715 | leave_suid(); | |
ab50ee9e | 1716 | } |
62e76326 | 1717 | |
bf8fe701 | 1718 | debugs(1, 1, "Squid Cache (Version " << version_string << "): Exiting normally."); |
62e76326 | 1719 | |
0cfa98cb | 1720 | /* |
1721 | * DPW 2006-10-23 | |
1722 | * We used to fclose(debug_log) here if it was set, but then | |
1723 | * we forgot to set it to NULL. That caused some coredumps | |
1724 | * because exit() ends up calling a bunch of destructors and | |
1725 | * such. So rather than forcing the debug_log to close, we'll | |
1726 | * leave it open so that those destructors can write some | |
1727 | * debugging if necessary. The file will be closed anyway when | |
1728 | * the process truly exits. | |
1729 | */ | |
62e76326 | 1730 | |
ae1feb30 | 1731 | exit(shutdown_status); |
fff6ad65 | 1732 | } |
bef81ea5 | 1733 |