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30a4f2a8 | 1 | /* |
262a0e14 | 2 | * $Id$ |
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. | |
26ac0430 | 23 | * |
30a4f2a8 | 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. | |
26ac0430 | 28 | * |
30a4f2a8 | 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" |
9b5c4a9a AJ |
71 | #include "icmp/IcmpSquid.h" |
72 | #include "icmp/net_db.h" | |
6e5db507 | 73 | #include "TextException.h" |
44a47c6e | 74 | |
57afc994 AR |
75 | #if USE_LOADABLE_MODULES |
76 | #include "LoadableModules.h" | |
77 | #endif | |
78 | ||
b958cb0f | 79 | #if ICAP_CLIENT |
26cc52cb | 80 | #include "adaptation/icap/Config.h" |
b958cb0f | 81 | #endif |
6e5db507 | 82 | #if USE_ECAP |
1f3c65fc | 83 | #include "adaptation/ecap/Config.h" |
6e5db507 | 84 | #endif |
b958cb0f AR |
85 | #if USE_ADAPTATION |
86 | #include "adaptation/Config.h" | |
87 | #endif | |
88 | ||
1a774556 | 89 | #if USE_WIN32_SERVICE |
90 | ||
91 | #include "squid_windows.h" | |
92 | #include <process.h> | |
93 | ||
94 | static int opt_install_service = FALSE; | |
95 | static int opt_remove_service = FALSE; | |
96 | static int opt_signal_service = FALSE; | |
97 | static int opt_command_line = FALSE; | |
98 | extern void WIN32_svcstatusupdate(DWORD, DWORD); | |
99 | void WINAPI WIN32_svcHandler(DWORD); | |
100 | ||
101 | #endif | |
102 | ||
63be0a78 | 103 | /** for error reporting from xmalloc and friends */ |
b293c4d8 | 104 | SQUIDCEXTERN void (*failure_notify) (const char *); |
30a4f2a8 | 105 | |
e13ee7ad | 106 | static int opt_parse_cfg_only = 0; |
5e6d4736 | 107 | static char *opt_syslog_facility = NULL; |
30a4f2a8 | 108 | static int icpPortNumOverride = 1; /* Want to detect "-u 0" */ |
e13ee7ad | 109 | static int configured_once = 0; |
30a4f2a8 | 110 | #if MALLOC_DBG |
4d64d74a | 111 | static int malloc_debug_level = 0; |
30a4f2a8 | 112 | #endif |
5cd39a10 | 113 | static volatile int do_reconfigure = 0; |
114 | static volatile int do_rotate = 0; | |
2681d383 | 115 | static volatile int do_shutdown = 0; |
ae1feb30 | 116 | static volatile int shutdown_status = 0; |
4d7add01 | 117 | |
5cd39a10 | 118 | static void mainRotate(void); |
d71e4674 AR |
119 | static void mainReconfigureStart(void); |
120 | static void mainReconfigureFinish(void*); | |
f5b8bbc4 | 121 | static void mainInitialize(void); |
f5b8bbc4 | 122 | static void usage(void); |
63be0a78 | 123 | static void mainParseOptions(int argc, char *argv[]); |
f5b8bbc4 | 124 | static void sendSignal(void); |
125 | static void serverConnectionsOpen(void); | |
d71e4674 | 126 | static void serverConnectionsClose(void); |
bbe199dc | 127 | static void watch_child(char **); |
85407535 | 128 | static void setEffectiveUser(void); |
36a97e19 | 129 | #if MEM_GEN_TRACE |
130 | extern void log_trace_done(); | |
131 | extern void log_trace_init(char *); | |
132 | #endif | |
8ff3fa2e | 133 | static void SquidShutdown(void); |
b6a2f15e | 134 | static void mainSetCwd(void); |
efd900cb | 135 | static int checkRunningPid(void); |
85407535 | 136 | |
b293c4d8 | 137 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 138 | static const char *squid_start_script = "squid_start"; |
b293c4d8 | 139 | #endif |
e18d7fdc | 140 | |
9bc73deb | 141 | #if TEST_ACCESS |
142 | #include "test_access.c" | |
143 | #endif | |
144 | ||
63be0a78 | 145 | /** temporary thunk across to the unrefactored store interface */ |
8ff3fa2e | 146 | |
147 | class StoreRootEngine : public AsyncEngine | |
148 | { | |
149 | ||
150 | public: | |
26ac0430 | 151 | int checkEvents(int timeout) { |
8ff3fa2e | 152 | Store::Root().callback(); |
153 | return EVENT_IDLE; | |
154 | }; | |
155 | }; | |
156 | ||
9688b0ae | 157 | class SignalEngine: public AsyncEngine |
a553a5a3 | 158 | { |
159 | ||
160 | public: | |
9688b0ae | 161 | SignalEngine(EventLoop &loop) : loop(loop) {} |
162 | virtual int checkEvents(int timeout); | |
a553a5a3 | 163 | |
164 | private: | |
26ac0430 | 165 | static void StopEventLoop(void * data) { |
9688b0ae | 166 | static_cast<SignalEngine *>(data)->loop.stop(); |
a553a5a3 | 167 | } |
168 | ||
9688b0ae | 169 | void doShutdown(time_t wait); |
170 | ||
a553a5a3 | 171 | EventLoop &loop; |
172 | }; | |
173 | ||
9688b0ae | 174 | int |
175 | SignalEngine::checkEvents(int timeout) | |
a553a5a3 | 176 | { |
9688b0ae | 177 | PROF_start(SignalEngine_checkEvents); |
fc68f6b1 | 178 | |
a553a5a3 | 179 | if (do_reconfigure) { |
d71e4674 | 180 | mainReconfigureStart(); |
a553a5a3 | 181 | do_reconfigure = 0; |
a553a5a3 | 182 | } else if (do_rotate) { |
183 | mainRotate(); | |
184 | do_rotate = 0; | |
185 | } else if (do_shutdown) { | |
9688b0ae | 186 | doShutdown(do_shutdown > 0 ? (int) Config.shutdownLifetime : 0); |
a553a5a3 | 187 | do_shutdown = 0; |
26ac0430 | 188 | } |
a553a5a3 | 189 | |
9688b0ae | 190 | PROF_stop(SignalEngine_checkEvents); |
191 | return EVENT_IDLE; | |
192 | } | |
a553a5a3 | 193 | |
9688b0ae | 194 | void |
195 | SignalEngine::doShutdown(time_t wait) | |
196 | { | |
197 | debugs(1, 1, "Preparing for shutdown after " << statCounter.client_http.requests << " requests"); | |
198 | debugs(1, 1, "Waiting " << wait << " seconds for active connections to finish"); | |
8ff3fa2e | 199 | |
9688b0ae | 200 | shutting_down = 1; |
201 | ||
202 | #if USE_WIN32_SERVICE | |
203 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, (wait + 1) * 1000); | |
204 | #endif | |
205 | ||
206 | serverConnectionsClose(); | |
207 | eventAdd("SquidShutdown", &StopEventLoop, this, (double) (wait + 1), 1, false); | |
a553a5a3 | 208 | } |
209 | ||
b8d8561b | 210 | static void |
0673c0ba | 211 | usage(void) |
ccff9601 | 212 | { |
0ee4272b | 213 | fprintf(stderr, |
0e657244 | 214 | #if USE_WIN32_SERVICE |
8eb28163 | 215 | "Usage: %s [-cdhirvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal] [-n name] [-O CommandLine]\n" |
0e657244 | 216 | #else |
8eb28163 | 217 | "Usage: %s [-cdhvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal]\n" |
0e657244 | 218 | #endif |
62e76326 | 219 | " -a port Specify HTTP port number (default: %d).\n" |
220 | " -d level Write debugging to stderr also.\n" | |
221 | " -f file Use given config-file instead of\n" | |
222 | " %s\n" | |
223 | " -h Print help message.\n" | |
0e657244 | 224 | #if USE_WIN32_SERVICE |
225 | " -i Installs as a Windows Service (see -n option).\n" | |
226 | #endif | |
62e76326 | 227 | " -k reconfigure|rotate|shutdown|interrupt|kill|debug|check|parse\n" |
228 | " Parse configuration file, then send signal to \n" | |
229 | " running copy (except -k parse) and exit.\n" | |
0e657244 | 230 | #if USE_WIN32_SERVICE |
231 | " -n name Specify Windows Service name to use for service operations\n" | |
232 | " default is: " _WIN_SQUID_DEFAULT_SERVICE_NAME ".\n" | |
233 | " -r Removes a Windows Service (see -n option).\n" | |
234 | #endif | |
5e6d4736 | 235 | " -s | -l facility\n" |
236 | " Enable logging to syslog.\n" | |
62e76326 | 237 | " -u port Specify ICP port number (default: %d), disable with 0.\n" |
238 | " -v Print version.\n" | |
239 | " -z Create swap directories\n" | |
240 | " -C Do not catch fatal signals.\n" | |
8eb28163 | 241 | " -D OBSOLETE. Scheduled for removal.\n" |
62e76326 | 242 | " -F Don't serve any requests until store is rebuilt.\n" |
243 | " -N No daemon mode.\n" | |
0e657244 | 244 | #if USE_WIN32_SERVICE |
245 | " -O options\n" | |
246 | " Set Windows Service Command line options in Registry.\n" | |
247 | #endif | |
62e76326 | 248 | " -R Do not set REUSEADDR on port.\n" |
249 | " -S Double-check swap during rebuild.\n" | |
62e76326 | 250 | " -X Force full debugging.\n" |
251 | " -Y Only return UDP_HIT or UDP_MISS_NOFETCH during fast reload.\n", | |
7dbca7a4 | 252 | APP_SHORTNAME, CACHE_HTTP_PORT, DefaultConfigFile, CACHE_ICP_PORT); |
77ffc99f | 253 | exit(1); |
ccff9601 | 254 | } |
255 | ||
63be0a78 | 256 | /** |
257 | * Parse the parameters received via command line interface. | |
258 | * | |
259 | \param argc[in] Number of options received on command line | |
260 | \param argv[in] List of parameters received on command line | |
261 | */ | |
b8d8561b | 262 | static void |
263 | mainParseOptions(int argc, char *argv[]) | |
090089c4 | 264 | { |
090089c4 | 265 | extern char *optarg; |
4d64d74a | 266 | int c; |
090089c4 | 267 | |
0e657244 | 268 | #if USE_WIN32_SERVICE |
5e6d4736 | 269 | while ((c = getopt(argc, argv, "CDFNO:RSVYXa:d:f:hik:m::n:rsl:u:vz?")) != -1) |
0e657244 | 270 | #else |
05f1c52c | 271 | while ((c = getopt(argc, argv, "CDFNRSYXa:d:f:hk:m::sl:u:vz?")) != -1) |
0e657244 | 272 | #endif |
9b7292ce | 273 | { |
274 | ||
26ac0430 | 275 | switch (c) { |
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 |
8eb28163 AJ |
285 | * OBSOLETE: WAS: override to prevent optional startup DNS tests. */ |
286 | debugs(1,DBG_CRITICAL, "WARNING: -D command-line option is obsolete."); | |
62e76326 | 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(); |
62e76326 | 629 | |
afd88fbe | 630 | carpInit(); |
f7e1d9ce HN |
631 | peerUserHashInit(); |
632 | peerSourceHashInit(); | |
5f3f8d0e | 633 | } |
634 | ||
d71e4674 | 635 | static 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 |
d71e4674 | 664 | mainReconfigureStart(void) |
9b7292ce | 665 | { |
bf8fe701 | 666 | debugs(1, 1, "Reconfiguring Squid Cache (version " << version_string << ")..."); |
5cd39a10 | 667 | reconfiguring = 1; |
d71e4674 AR |
668 | |
669 | // Initiate asynchronous closing sequence | |
15df8349 | 670 | serverConnectionsClose(); |
17e6c0a1 | 671 | icpConnectionClose(); |
72549e05 | 672 | #if USE_HTCP |
62e76326 | 673 | |
72549e05 | 674 | htcpSocketClose(); |
675 | #endif | |
17e6c0a1 | 676 | #ifdef SQUID_SNMP |
62e76326 | 677 | |
17e6c0a1 | 678 | snmpConnectionClose(); |
320e9f36 | 679 | #endif |
3c573763 | 680 | #if USE_DNSSERVERS |
62e76326 | 681 | |
74addf6c | 682 | dnsShutdown(); |
3c573763 | 683 | #else |
62e76326 | 684 | |
7b724b86 | 685 | idnsShutdown(); |
eb824054 | 686 | #endif |
62e76326 | 687 | |
74addf6c | 688 | redirectShutdown(); |
689 | authenticateShutdown(); | |
d9572179 | 690 | externalAclShutdown(); |
2db68ce5 | 691 | storeDirCloseSwapLogs(); |
2e923080 | 692 | storeLogClose(); |
693 | accessLogClose(); | |
694 | useragentLogClose(); | |
695 | refererCloseLog(); | |
d71e4674 AR |
696 | |
697 | eventAdd("mainReconfigureFinish", &mainReconfigureFinish, NULL, 0, 1, | |
26ac0430 | 698 | false); |
d71e4674 AR |
699 | } |
700 | ||
701 | static void | |
26ac0430 AJ |
702 | mainReconfigureFinish(void *) |
703 | { | |
d71e4674 AR |
704 | debugs(1, 3, "finishing reconfiguring"); |
705 | ||
c68e9c6b | 706 | errorClean(); |
3aa4adbc | 707 | enter_suid(); /* root to read config file */ |
dd9b1081 | 708 | parseConfigFile(ConfigFile); |
c642c141 | 709 | setUmask(Config.umask); |
97244680 | 710 | Mem::Report(); |
3aa4adbc | 711 | setEffectiveUser(); |
b6f794d6 | 712 | _db_init(Config.Log.log, Config.debugOptions); |
429fdbec | 713 | ipcache_restart(); /* clear stuck entries */ |
94439e4e | 714 | authenticateUserCacheRestart(); /* clear stuck ACL entries */ |
429fdbec | 715 | fqdncache_restart(); /* sigh, fqdncache too */ |
0e70aa1e | 716 | parseEtcHosts(); |
53ad48e6 | 717 | errorInitialize(); /* reload error pages */ |
2e923080 | 718 | accessLogInit(); |
719 | storeLogOpen(); | |
720 | useragentOpenLog(); | |
721 | refererOpenLog(); | |
3c573763 | 722 | #if USE_DNSSERVERS |
62e76326 | 723 | |
74addf6c | 724 | dnsInit(); |
3c573763 | 725 | #else |
62e76326 | 726 | |
7b724b86 | 727 | idnsInit(); |
eb824054 | 728 | #endif |
62e76326 | 729 | |
74addf6c | 730 | redirectInit(); |
e6ccf245 | 731 | authenticateInit(&Config.authConfiguration); |
d9572179 | 732 | externalAclInit(); |
1f38f50a | 733 | #if USE_WCCP |
62e76326 | 734 | |
1f38f50a | 735 | wccpInit(); |
736 | #endif | |
0b0cfcf2 | 737 | #if USE_WCCPv2 |
738 | ||
739 | wccp2Init(); | |
740 | #endif | |
62e76326 | 741 | |
0ffd22bc | 742 | serverConnectionsOpen(); |
9c2e9b50 | 743 | |
3ee2b4f8 | 744 | neighbors_init(); |
9c2e9b50 | 745 | |
2db68ce5 | 746 | storeDirOpenSwapLogs(); |
9c2e9b50 | 747 | |
9c021a38 | 748 | mimeInit(Config.mimeTablePathname); |
9c2e9b50 | 749 | |
926375e6 | 750 | if (Config.onoff.announce) { |
751 | if (!eventFind(start_announce, NULL)) | |
752 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
753 | } else { | |
754 | if (eventFind(start_announce, NULL)) | |
755 | eventDelete(start_announce, NULL); | |
756 | } | |
757 | ||
b8890359 | 758 | writePidFile(); /* write PID file */ |
9c2e9b50 | 759 | |
bf8fe701 | 760 | debugs(1, 1, "Ready to serve requests."); |
9c2e9b50 | 761 | |
5cd39a10 | 762 | reconfiguring = 0; |
763 | } | |
764 | ||
765 | static void | |
9b7292ce | 766 | mainRotate(void) |
767 | { | |
cc192b50 | 768 | icmpEngine.Close(); |
3c573763 | 769 | #if USE_DNSSERVERS |
62e76326 | 770 | |
e40aa8da | 771 | dnsShutdown(); |
3c573763 | 772 | #endif |
62e76326 | 773 | |
e40aa8da | 774 | redirectShutdown(); |
775 | authenticateShutdown(); | |
d9572179 | 776 | externalAclShutdown(); |
5cd39a10 | 777 | _db_rotate_log(); /* cache.log */ |
778 | storeDirWriteCleanLogs(1); | |
779 | storeLogRotate(); /* store.log */ | |
780 | accessLogRotate(); /* access.log */ | |
781 | useragentRotateLog(); /* useragent.log */ | |
fd2c5549 | 782 | refererRotateLog(); /* referer.log */ |
225644d7 | 783 | #if WIP_FWD_LOG |
62e76326 | 784 | |
225644d7 | 785 | fwdLogRotate(); |
786 | #endif | |
62e76326 | 787 | |
cc192b50 | 788 | icmpEngine.Open(); |
3c573763 | 789 | #if USE_DNSSERVERS |
62e76326 | 790 | |
e40aa8da | 791 | dnsInit(); |
3c573763 | 792 | #endif |
62e76326 | 793 | |
e40aa8da | 794 | redirectInit(); |
e6ccf245 | 795 | authenticateInit(&Config.authConfiguration); |
d9572179 | 796 | externalAclInit(); |
5f3f8d0e | 797 | } |
798 | ||
067bea91 | 799 | static void |
9b7292ce | 800 | setEffectiveUser(void) |
801 | { | |
fc68f6b1 | 802 | keepCapabilities(); |
85407535 | 803 | leave_suid(); /* Run as non privilegied user */ |
cd377065 | 804 | #ifdef _SQUID_OS2_ |
62e76326 | 805 | |
cd377065 | 806 | return; |
807 | #endif | |
62e76326 | 808 | |
85407535 | 809 | if (geteuid() == 0) { |
bf8fe701 | 810 | debugs(0, 0, "Squid is not safe to run as root! If you must"); |
811 | debugs(0, 0, "start Squid as root, then you must configure"); | |
812 | debugs(0, 0, "it to run as a non-priveledged user with the"); | |
813 | debugs(0, 0, "'cache_effective_user' option in the config file."); | |
62e76326 | 814 | fatal("Don't run Squid as root, set 'cache_effective_user'!"); |
85407535 | 815 | } |
816 | } | |
817 | ||
b6a2f15e | 818 | static void |
9b7292ce | 819 | mainSetCwd(void) |
820 | { | |
4a504376 | 821 | char pathbuf[MAXPATHLEN]; |
62e76326 | 822 | |
b6a2f15e | 823 | if (Config.coredump_dir) { |
62e76326 | 824 | if (0 == strcmp("none", Config.coredump_dir)) { |
825 | (void) 0; | |
826 | } else if (chdir(Config.coredump_dir) == 0) { | |
bf8fe701 | 827 | debugs(0, 1, "Set Current Directory to " << Config.coredump_dir); |
62e76326 | 828 | return; |
829 | } else { | |
bf8fe701 | 830 | debugs(50, 0, "chdir: " << Config.coredump_dir << ": " << xstrerror()); |
62e76326 | 831 | } |
b6a2f15e | 832 | } |
62e76326 | 833 | |
02e8115e | 834 | /* If we don't have coredump_dir or couldn't cd there, report current dir */ |
4a504376 | 835 | if (getcwd(pathbuf, MAXPATHLEN)) { |
bf8fe701 | 836 | debugs(0, 1, "Current Directory is " << pathbuf); |
4a504376 | 837 | } else { |
bf8fe701 | 838 | debugs(50, 0, "WARNING: Can't find current directory, getcwd: " << xstrerror()); |
4a504376 | 839 | } |
b6a2f15e | 840 | } |
841 | ||
b67e2c8c | 842 | #if DELAY_POOLS |
843 | #include "DelayPools.h" | |
844 | #endif | |
845 | ||
b8d8561b | 846 | static void |
9b7292ce | 847 | mainInitialize(void) |
848 | { | |
efd900cb | 849 | /* chroot if configured to run inside chroot */ |
62e76326 | 850 | |
64b0a10d | 851 | if (Config.chroot_dir && (chroot(Config.chroot_dir) != 0 || chdir("/") != 0)) { |
62e76326 | 852 | fatal("failed to chroot"); |
efd900cb | 853 | } |
62e76326 | 854 | |
1758c627 | 855 | if (opt_catch_signals) { |
62e76326 | 856 | squid_signal(SIGSEGV, death, SA_NODEFER | SA_RESETHAND); |
857 | squid_signal(SIGBUS, death, SA_NODEFER | SA_RESETHAND); | |
44f99671 | 858 | } |
62e76326 | 859 | |
30a4f2a8 | 860 | squid_signal(SIGPIPE, SIG_IGN, SA_RESTART); |
861 | squid_signal(SIGCHLD, sig_child, SA_NODEFER | SA_RESTART); | |
44f99671 | 862 | |
85407535 | 863 | setEffectiveUser(); |
62e76326 | 864 | |
30a4f2a8 | 865 | if (icpPortNumOverride != 1) |
62e76326 | 866 | Config.Port.icp = (u_short) icpPortNumOverride; |
30a4f2a8 | 867 | |
b6f794d6 | 868 | _db_init(Config.Log.log, Config.debugOptions); |
62e76326 | 869 | |
5c5783a2 | 870 | fd_open(fileno(debug_log), FD_LOG, Config.Log.log); |
62e76326 | 871 | |
71a17702 | 872 | #if MEM_GEN_TRACE |
62e76326 | 873 | |
71a17702 | 874 | log_trace_init("/tmp/squid.alloc"); |
62e76326 | 875 | |
71a17702 | 876 | #endif |
62e76326 | 877 | |
bf8fe701 | 878 | debugs(1, 0, "Starting Squid Cache version " << version_string << " for " << CONFIG_HOST_TYPE << "..."); |
62e76326 | 879 | |
ec4daaa5 | 880 | #ifdef _SQUID_WIN32_ |
b293c4d8 | 881 | |
882 | if (WIN32_run_mode == _WIN_SQUID_RUN_MODE_SERVICE) { | |
bf8fe701 | 883 | debugs(1, 0, "Running as " << WIN32_Service_name << " Windows System Service on " << WIN32_OS_string); |
884 | debugs(1, 0, "Service command line is: " << WIN32_Service_Command_Line); | |
b293c4d8 | 885 | } else |
bf8fe701 | 886 | debugs(1, 0, "Running on " << WIN32_OS_string); |
b293c4d8 | 887 | |
888 | #endif | |
889 | ||
36584579 | 890 | debugs(1, 1, "Process ID " << getpid()); |
62e76326 | 891 | |
bf8fe701 | 892 | debugs(1, 1, "With " << Squid_MaxFD << " file descriptors available"); |
5f3f8d0e | 893 | |
6c1962dd | 894 | #ifdef _SQUID_MSWIN_ |
895 | ||
bf8fe701 | 896 | debugs(1, 1, "With " << _getmaxstdio() << " CRT stdio descriptors available"); |
6c1962dd | 897 | |
898 | if (WIN32_Socks_initialized) | |
bf8fe701 | 899 | debugs(1, 1, "Windows sockets initialized"); |
6c1962dd | 900 | |
babd1fd5 | 901 | if (WIN32_OS_version > _WIN_OS_WINNT) { |
26ac0430 | 902 | WIN32_IpAddrChangeMonitorInit(); |
babd1fd5 | 903 | } |
904 | ||
6c1962dd | 905 | #endif |
906 | ||
9f75c559 | 907 | if (!configured_once) |
62e76326 | 908 | disk_init(); /* disk_init must go before ipcache_init() */ |
909 | ||
5f3f8d0e | 910 | ipcache_init(); |
62e76326 | 911 | |
f88bb09c | 912 | fqdncache_init(); |
62e76326 | 913 | |
0e70aa1e | 914 | parseEtcHosts(); |
62e76326 | 915 | |
3c573763 | 916 | #if USE_DNSSERVERS |
62e76326 | 917 | |
74addf6c | 918 | dnsInit(); |
62e76326 | 919 | |
3c573763 | 920 | #else |
62e76326 | 921 | |
7b724b86 | 922 | idnsInit(); |
62e76326 | 923 | |
eb824054 | 924 | #endif |
62e76326 | 925 | |
74addf6c | 926 | redirectInit(); |
62e76326 | 927 | |
e6ccf245 | 928 | authenticateInit(&Config.authConfiguration); |
62e76326 | 929 | |
d9572179 | 930 | externalAclInit(); |
62e76326 | 931 | |
b012353a | 932 | useragentOpenLog(); |
62e76326 | 933 | |
fd2c5549 | 934 | refererOpenLog(); |
62e76326 | 935 | |
2ac76861 | 936 | httpHeaderInitModule(); /* must go before any header processing (e.g. the one in errorInitialize) */ |
62e76326 | 937 | |
2246b732 | 938 | httpReplyInitModule(); /* must go before accepting replies */ |
62e76326 | 939 | |
9b312a19 | 940 | errorInitialize(); |
62e76326 | 941 | |
7a2f978b | 942 | accessLogInit(); |
62e76326 | 943 | |
3898f57f | 944 | #if USE_IDENT |
62e76326 | 945 | |
05832ae1 | 946 | identInit(); |
62e76326 | 947 | |
3898f57f | 948 | #endif |
5e14bf6d | 949 | #ifdef SQUID_SNMP |
62e76326 | 950 | |
5e14bf6d | 951 | snmpInit(); |
62e76326 | 952 | |
5e14bf6d | 953 | #endif |
30a4f2a8 | 954 | #if MALLOC_DBG |
62e76326 | 955 | |
5f3f8d0e | 956 | malloc_debug(0, malloc_debug_level); |
62e76326 | 957 | |
5f3f8d0e | 958 | #endif |
959 | ||
dbe4fd8e | 960 | if (!configured_once) { |
a3d0a19d | 961 | #if USE_UNLINKD |
62e76326 | 962 | unlinkdInit(); |
963 | #endif | |
964 | ||
965 | urlInitialize(); | |
62e76326 | 966 | statInit(); |
967 | storeInit(); | |
968 | mainSetCwd(); | |
969 | /* after this point we want to see the mallinfo() output */ | |
970 | do_mallinfo = 1; | |
971 | mimeInit(Config.mimeTablePathname); | |
62e76326 | 972 | refreshInit(); |
0d7e5d78 | 973 | #if DELAY_POOLS |
62e76326 | 974 | |
975 | DelayPools::Init(); | |
0d7e5d78 | 976 | #endif |
62e76326 | 977 | |
b6b6f466 | 978 | FwdState::initModule(); |
62ee09ca | 979 | /* register the modules in the cache manager menus */ |
62ee09ca | 980 | |
a08f1b5a | 981 | cbdataRegisterWithCacheManager(); |
62ee09ca | 982 | /* These use separate calls so that the comm loops can eventually |
983 | * coexist. | |
984 | */ | |
62ee09ca | 985 | |
15b3c0d7 | 986 | eventInit(); |
610ee341 | 987 | |
26ac0430 | 988 | // TODO: pconn is a good candidate for new-style registration |
6852be71 | 989 | // PconnModule::GetInstance()->registerWithCacheManager(); |
26ac0430 | 990 | // moved to PconnModule::PconnModule() |
5f3f8d0e | 991 | } |
62e76326 | 992 | |
1f38f50a | 993 | #if USE_WCCP |
994 | wccpInit(); | |
62e76326 | 995 | |
0b0cfcf2 | 996 | #endif |
997 | #if USE_WCCPv2 | |
998 | ||
999 | wccp2Init(); | |
1000 | ||
1f38f50a | 1001 | #endif |
62e76326 | 1002 | |
2285407f | 1003 | serverConnectionsOpen(); |
62e76326 | 1004 | |
3ee2b4f8 | 1005 | neighbors_init(); |
fc68f6b1 | 1006 | |
5f5e883f | 1007 | // neighborsRegisterWithCacheManager(); //moved to neighbors_init() |
62e76326 | 1008 | |
efd900cb | 1009 | if (Config.chroot_dir) |
62e76326 | 1010 | no_suid(); |
1011 | ||
dbe4fd8e | 1012 | if (!configured_once) |
62e76326 | 1013 | writePidFile(); /* write PID file */ |
0a5b9b32 | 1014 | |
7e7a0442 | 1015 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 1016 | |
e3175d1f | 1017 | squid_signal(SIGQUIT, rotate_logs, SA_RESTART); |
62e76326 | 1018 | |
e3175d1f | 1019 | squid_signal(SIGTRAP, sigusr2_handle, SA_RESTART); |
62e76326 | 1020 | |
e3175d1f | 1021 | #else |
62e76326 | 1022 | |
30a4f2a8 | 1023 | squid_signal(SIGUSR1, rotate_logs, SA_RESTART); |
62e76326 | 1024 | |
30a4f2a8 | 1025 | squid_signal(SIGUSR2, sigusr2_handle, SA_RESTART); |
62e76326 | 1026 | |
9fc0b4b8 | 1027 | #endif |
62e76326 | 1028 | |
30a4f2a8 | 1029 | squid_signal(SIGHUP, reconfigure, SA_RESTART); |
62e76326 | 1030 | |
30a4f2a8 | 1031 | squid_signal(SIGTERM, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1032 | |
30a4f2a8 | 1033 | squid_signal(SIGINT, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1034 | |
ae1feb30 | 1035 | #ifdef SIGTTIN |
1036 | ||
1037 | squid_signal(SIGTTIN, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); | |
1038 | ||
1039 | #endif | |
1040 | ||
58a39dc9 | 1041 | memCheckInit(); |
62e76326 | 1042 | |
57afc994 AR |
1043 | #if USE_LOADABLE_MODULES |
1044 | LoadableModulesConfigure(Config.loadable_module_names); | |
1045 | #endif | |
1046 | ||
8f361c50 AR |
1047 | #if USE_ADAPTATION |
1048 | bool enableAdaptation = false; | |
1049 | ||
1050 | // We can remove this dependency on specific adaptation mechanisms | |
1051 | // if we create a generic Registry of such mechanisms. Should we? | |
b958cb0f | 1052 | #if ICAP_CLIENT |
26cc52cb AR |
1053 | Adaptation::Icap::TheConfig.finalize(); |
1054 | enableAdaptation = Adaptation::Icap::TheConfig.onoff || enableAdaptation; | |
6e5db507 AR |
1055 | #endif |
1056 | #if USE_ECAP | |
1057 | Ecap::TheConfig.finalize(); // must be after we load modules | |
1058 | enableAdaptation = Ecap::TheConfig.onoff || enableAdaptation; | |
b958cb0f | 1059 | #endif |
8f361c50 AR |
1060 | // must be the last adaptation-related finalize |
1061 | Adaptation::Config::Finalize(enableAdaptation); | |
b958cb0f AR |
1062 | #endif |
1063 | ||
1064 | ||
bf8fe701 | 1065 | debugs(1, 1, "Ready to serve requests."); |
62e76326 | 1066 | |
dbe4fd8e | 1067 | if (!configured_once) { |
c8f4eac4 | 1068 | eventAdd("storeMaintain", Store::Maintain, NULL, 1.0, 1); |
62e76326 | 1069 | |
1070 | if (Config.onoff.announce) | |
1071 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
1072 | ||
1073 | eventAdd("ipcache_purgelru", ipcache_purgelru, NULL, 10.0, 1); | |
1074 | ||
1075 | eventAdd("fqdncache_purgelru", fqdncache_purgelru, NULL, 15.0, 1); | |
1076 | ||
88bfe092 | 1077 | #if USE_XPROF_STATS |
62e76326 | 1078 | |
1079 | eventAdd("cpuProfiling", xprof_event, NULL, 1.0, 1); | |
1080 | ||
88bfe092 | 1081 | #endif |
62e76326 | 1082 | |
1083 | eventAdd("memPoolCleanIdlePools", Mem::CleanIdlePools, NULL, 15.0, 1); | |
4d7add01 | 1084 | } |
62e76326 | 1085 | |
dbe4fd8e | 1086 | configured_once = 1; |
4d64d74a | 1087 | } |
1088 | ||
c842329d | 1089 | /// unsafe main routine -- may throw |
6e5db507 | 1090 | static int SquidMain(int argc, char **argv); |
c842329d | 1091 | /// unsafe main routine wrapper to catch exceptions |
6e5db507 AR |
1092 | static int SquidMainSafe(int argc, char **argv); |
1093 | ||
6c1962dd | 1094 | #if USE_WIN32_SERVICE |
1095 | /* When USE_WIN32_SERVICE is defined, the main function is placed in win32.cc */ | |
1096 | extern "C" void WINAPI | |
a0aa9e74 | 1097 | SquidWinSvcMain(int argc, char **argv) |
6c1962dd | 1098 | #else |
b8d8561b | 1099 | int |
1100 | main(int argc, char **argv) | |
9b7292ce | 1101 | #endif |
6e5db507 AR |
1102 | { |
1103 | SquidMainSafe(argc, argv); | |
1104 | } | |
1105 | ||
1106 | static int | |
1107 | SquidMainSafe(int argc, char **argv) | |
1108 | { | |
1109 | try { | |
1110 | return SquidMain(argc, argv); | |
26ac0430 | 1111 | } catch (const std::exception &e) { |
bba7c3d0 | 1112 | std::cerr << "dying from an unhandled exception: " << e.what() << std::endl; |
26ac0430 AJ |
1113 | throw; |
1114 | } catch (...) { | |
bba7c3d0 | 1115 | std::cerr << "dying from an unhandled exception." << std::endl; |
26ac0430 AJ |
1116 | throw; |
1117 | } | |
1118 | return -1; // not reached | |
6e5db507 AR |
1119 | } |
1120 | ||
1121 | static int | |
1122 | SquidMain(int argc, char **argv) | |
9b7292ce | 1123 | { |
a0aa9e74 | 1124 | #ifdef _SQUID_WIN32_ |
1125 | ||
1126 | int WIN32_init_err; | |
1127 | #endif | |
4d64d74a | 1128 | |
a4ba1105 | 1129 | #if HAVE_SBRK |
62e76326 | 1130 | |
9b7292ce | 1131 | sbrk_start = sbrk(0); |
a4ba1105 | 1132 | #endif |
1133 | ||
fb6a61d1 | 1134 | Debug::parseOptions(NULL); |
9b7292ce | 1135 | debug_log = stderr; |
62e76326 | 1136 | |
b9269882 | 1137 | #if defined(SQUID_MAXFD_LIMIT) |
1138 | ||
1139 | if (SQUID_MAXFD_LIMIT < Squid_MaxFD) | |
1140 | Squid_MaxFD = SQUID_MAXFD_LIMIT; | |
1141 | ||
1142 | #endif | |
399e85ea | 1143 | |
ec4daaa5 | 1144 | #ifdef _SQUID_WIN32_ |
6c1962dd | 1145 | |
a0aa9e74 | 1146 | if ((WIN32_init_err = WIN32_Subsystem_Init(&argc, &argv))) |
1147 | return WIN32_init_err; | |
62e76326 | 1148 | |
0e6d05ef | 1149 | #endif |
1150 | ||
9b7292ce | 1151 | /* call mallopt() before anything else */ |
0b29fe44 | 1152 | #if HAVE_MALLOPT |
7328e889 | 1153 | #ifdef M_GRAIN |
9b7292ce | 1154 | /* Round up all sizes to a multiple of this */ |
1155 | mallopt(M_GRAIN, 16); | |
62e76326 | 1156 | |
7328e889 | 1157 | #endif |
1158 | #ifdef M_MXFAST | |
9b7292ce | 1159 | /* biggest size that is considered a small block */ |
1160 | mallopt(M_MXFAST, 256); | |
62e76326 | 1161 | |
7328e889 | 1162 | #endif |
1163 | #ifdef M_NBLKS | |
9b7292ce | 1164 | /* allocate this many small blocks at once */ |
1165 | mallopt(M_NLBLKS, 32); | |
62e76326 | 1166 | |
7328e889 | 1167 | #endif |
1168 | #endif /* HAVE_MALLOPT */ | |
1169 | ||
9b7292ce | 1170 | squid_srandom(time(NULL)); |
4d64d74a | 1171 | |
9b7292ce | 1172 | getCurrentTime(); |
62e76326 | 1173 | |
9b7292ce | 1174 | squid_start = current_time; |
62e76326 | 1175 | |
9b7292ce | 1176 | failure_notify = fatal_dump; |
4d64d74a | 1177 | |
6c1962dd | 1178 | #if USE_WIN32_SERVICE |
1179 | ||
9b7292ce | 1180 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1181 | |
1182 | #endif | |
1183 | ||
9b7292ce | 1184 | mainParseOptions(argc, argv); |
4d64d74a | 1185 | |
9aae6be3 | 1186 | if (opt_parse_cfg_only) { |
26ac0430 | 1187 | Debug::parseOptions("ALL,1"); |
9aae6be3 | 1188 | } |
1189 | ||
6c1962dd | 1190 | #if USE_WIN32_SERVICE |
1191 | ||
26ac0430 | 1192 | if (opt_install_service) { |
9b7292ce | 1193 | WIN32_InstallService(); |
a0aa9e74 | 1194 | return 0; |
9b7292ce | 1195 | } |
6c1962dd | 1196 | |
26ac0430 | 1197 | if (opt_remove_service) { |
9b7292ce | 1198 | WIN32_RemoveService(); |
a0aa9e74 | 1199 | return 0; |
9b7292ce | 1200 | } |
6c1962dd | 1201 | |
26ac0430 | 1202 | if (opt_command_line) { |
9b7292ce | 1203 | WIN32_SetServiceCommandLine(); |
a0aa9e74 | 1204 | return 0; |
9b7292ce | 1205 | } |
6c1962dd | 1206 | |
1207 | #endif | |
1208 | ||
9b7292ce | 1209 | /* parse configuration file |
1210 | * note: in "normal" case this used to be called from mainInitialize() */ | |
1211 | { | |
1212 | int parse_err; | |
62e76326 | 1213 | |
9b7292ce | 1214 | if (!ConfigFile) |
1215 | ConfigFile = xstrdup(DefaultConfigFile); | |
62e76326 | 1216 | |
9b7292ce | 1217 | assert(!configured_once); |
62e76326 | 1218 | |
9b7292ce | 1219 | Mem::Init(); |
62e76326 | 1220 | |
9b7292ce | 1221 | storeFsInit(); /* required for config parsing */ |
62e76326 | 1222 | |
b9ae18aa | 1223 | /* May not be needed for parsing, have not audited for such */ |
1224 | DiskIOModule::SetupAllModules(); | |
1225 | ||
59b2d47f | 1226 | /* Shouldn't be needed for config parsing, but have not audited for such */ |
1227 | StoreFileSystem::SetupAllFs(); | |
1228 | ||
c8f4eac4 | 1229 | /* we may want the parsing process to set this up in the future */ |
1230 | Store::Root(new StoreController); | |
1231 | ||
dd9b1081 | 1232 | parse_err = parseConfigFile(ConfigFile); |
62e76326 | 1233 | |
97244680 | 1234 | Mem::Report(); |
26ac0430 | 1235 | |
9b7292ce | 1236 | if (opt_parse_cfg_only) |
6c1962dd | 1237 | |
9b7292ce | 1238 | return parse_err; |
9b7292ce | 1239 | } |
c642c141 | 1240 | setUmask(Config.umask); |
9b7292ce | 1241 | if (-1 == opt_send_signal) |
1242 | if (checkRunningPid()) | |
1243 | exit(1); | |
e13ee7ad | 1244 | |
9bc73deb | 1245 | #if TEST_ACCESS |
62e76326 | 1246 | |
95564b0d | 1247 | comm_init(); |
62e76326 | 1248 | |
9b7292ce | 1249 | comm_select_init(); |
62e76326 | 1250 | |
9b7292ce | 1251 | mainInitialize(); |
62e76326 | 1252 | |
9b7292ce | 1253 | test_access(); |
62e76326 | 1254 | |
9b7292ce | 1255 | return 0; |
62e76326 | 1256 | |
9bc73deb | 1257 | #endif |
1258 | ||
9b7292ce | 1259 | /* send signal to running copy and exit */ |
26ac0430 | 1260 | if (opt_send_signal != -1) { |
9b7292ce | 1261 | /* chroot if configured to run inside chroot */ |
62e76326 | 1262 | |
a572d8be | 1263 | if (Config.chroot_dir) { |
1264 | if (chroot(Config.chroot_dir)) | |
1265 | fatal("failed to chroot"); | |
1266 | ||
1267 | no_suid(); | |
1268 | } else { | |
1269 | leave_suid(); | |
9b7292ce | 1270 | } |
62e76326 | 1271 | |
9b7292ce | 1272 | sendSignal(); |
1273 | /* NOTREACHED */ | |
1274 | } | |
62e76326 | 1275 | |
26ac0430 | 1276 | if (opt_create_swap_dirs) { |
9b7292ce | 1277 | /* chroot if configured to run inside chroot */ |
0e657244 | 1278 | |
9b7292ce | 1279 | if (Config.chroot_dir && chroot(Config.chroot_dir)) { |
1280 | fatal("failed to chroot"); | |
1281 | } | |
62e76326 | 1282 | |
9b7292ce | 1283 | setEffectiveUser(); |
bf8fe701 | 1284 | debugs(0, 0, "Creating Swap Directories"); |
c8f4eac4 | 1285 | Store::Root().create(); |
6c1962dd | 1286 | |
9b7292ce | 1287 | return 0; |
9b7292ce | 1288 | } |
62e76326 | 1289 | |
9b7292ce | 1290 | if (!opt_no_daemon) |
1291 | watch_child(argv); | |
62e76326 | 1292 | |
95564b0d | 1293 | setMaxFD(); |
1294 | ||
1295 | /* init comm module */ | |
1296 | comm_init(); | |
62e76326 | 1297 | |
9b7292ce | 1298 | comm_select_init(); |
4d64d74a | 1299 | |
26ac0430 | 1300 | if (opt_no_daemon) { |
9b7292ce | 1301 | /* we have to init fdstat here. */ |
1302 | fd_open(0, FD_LOG, "stdin"); | |
1303 | fd_open(1, FD_LOG, "stdout"); | |
1304 | fd_open(2, FD_LOG, "stderr"); | |
1305 | } | |
62e76326 | 1306 | |
6c1962dd | 1307 | #if USE_WIN32_SERVICE |
1308 | ||
9b7292ce | 1309 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1310 | |
1311 | #endif | |
1312 | ||
9b7292ce | 1313 | mainInitialize(); |
4d64d74a | 1314 | |
6c1962dd | 1315 | #if USE_WIN32_SERVICE |
1316 | ||
9b7292ce | 1317 | WIN32_svcstatusupdate(SERVICE_RUNNING, 0); |
6c1962dd | 1318 | |
1319 | #endif | |
1320 | ||
9b7292ce | 1321 | /* main loop */ |
a553a5a3 | 1322 | EventLoop mainLoop; |
62e76326 | 1323 | |
9688b0ae | 1324 | SignalEngine signalEngine(mainLoop); |
6c1962dd | 1325 | |
9688b0ae | 1326 | mainLoop.registerEngine(&signalEngine); |
62e76326 | 1327 | |
8ff3fa2e | 1328 | /* TODO: stop requiring the singleton here */ |
1329 | mainLoop.registerEngine(EventScheduler::GetInstance()); | |
62e76326 | 1330 | |
8ff3fa2e | 1331 | StoreRootEngine store_engine; |
615f9581 | 1332 | |
8ff3fa2e | 1333 | mainLoop.registerEngine(&store_engine); |
a774fd3f | 1334 | |
8ff3fa2e | 1335 | CommSelectEngine comm_engine; |
1336 | ||
8ff3fa2e | 1337 | mainLoop.registerEngine(&comm_engine); |
1338 | ||
bef81ea5 | 1339 | mainLoop.setPrimaryEngine(&comm_engine); |
1340 | ||
8ff3fa2e | 1341 | /* use the standard time service */ |
1342 | TimeEngine time_engine; | |
1343 | ||
1344 | mainLoop.setTimeService(&time_engine); | |
1345 | ||
1346 | mainLoop.run(); | |
1347 | ||
1348 | if (mainLoop.errcount == 10) | |
1349 | fatal_dump("Event loop exited with failure."); | |
1350 | ||
1351 | /* shutdown squid now */ | |
1352 | SquidShutdown(); | |
62e76326 | 1353 | |
9b7292ce | 1354 | /* NOTREACHED */ |
9b7292ce | 1355 | return 0; |
090089c4 | 1356 | } |
7690e8eb | 1357 | |
b8d8561b | 1358 | static void |
0673c0ba | 1359 | sendSignal(void) |
7690e8eb | 1360 | { |
ff8d0ea6 | 1361 | pid_t pid; |
fedac7e5 | 1362 | debug_log = stderr; |
258ac4d7 | 1363 | |
1364 | if (strcmp(Config.pidFilename, "none") == 0) { | |
bf8fe701 | 1365 | debugs(0, 1, "No pid_filename specified. Trusting you know what you are doing."); |
258ac4d7 | 1366 | } |
1367 | ||
fedac7e5 | 1368 | pid = readPidFile(); |
62e76326 | 1369 | |
fedac7e5 | 1370 | if (pid > 1) { |
6c1962dd | 1371 | #if USE_WIN32_SERVICE |
1372 | ||
1373 | if (opt_signal_service) { | |
1374 | WIN32_sendSignal(opt_send_signal); | |
1375 | exit(0); | |
1376 | } else | |
1377 | #ifdef _SQUID_MSWIN_ | |
1378 | { | |
7dbca7a4 | 1379 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
6c1962dd | 1380 | fprintf(stderr, "signal to Squid Service:\n"); |
1381 | fprintf(stderr, "missing -n command line switch.\n"); | |
1382 | exit(1); | |
1383 | } | |
1384 | ||
1385 | /* NOTREACHED */ | |
1386 | #endif | |
1387 | ||
1388 | #endif | |
1389 | ||
62e76326 | 1390 | if (kill(pid, opt_send_signal) && |
1391 | /* ignore permissions if just running check */ | |
1392 | !(opt_send_signal == 0 && errno == EPERM)) { | |
7dbca7a4 | 1393 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
62e76326 | 1394 | fprintf(stderr, "signal %d to process %d: %s\n", |
1395 | opt_send_signal, (int) pid, xstrerror()); | |
1396 | exit(1); | |
1397 | } | |
fedac7e5 | 1398 | } else { |
7dbca7a4 | 1399 | fprintf(stderr, "%s: ERROR: No running copy\n", APP_SHORTNAME); |
62e76326 | 1400 | exit(1); |
7690e8eb | 1401 | } |
62e76326 | 1402 | |
fedac7e5 | 1403 | /* signal successfully sent */ |
1404 | exit(0); | |
1405 | } | |
f95b8144 | 1406 | |
a50bfe93 | 1407 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 1408 | /* |
1409 | * This function is run when Squid is in daemon mode, just | |
1410 | * before the parent forks and starts up the child process. | |
1411 | * It can be used for admin-specific tasks, such as notifying | |
1412 | * someone that Squid is (re)started. | |
1413 | */ | |
1414 | static void | |
1415 | mainStartScript(const char *prog) | |
1416 | { | |
1417 | char script[SQUID_MAXPATHLEN]; | |
1418 | char *t; | |
1419 | size_t sl = 0; | |
1420 | pid_t cpid; | |
1421 | pid_t rpid; | |
1422 | xstrncpy(script, prog, MAXPATHLEN); | |
62e76326 | 1423 | |
e18d7fdc | 1424 | if ((t = strrchr(script, '/'))) { |
62e76326 | 1425 | *(++t) = '\0'; |
1426 | sl = strlen(script); | |
e18d7fdc | 1427 | } |
62e76326 | 1428 | |
e18d7fdc | 1429 | xstrncpy(&script[sl], squid_start_script, MAXPATHLEN - sl); |
62e76326 | 1430 | |
e18d7fdc | 1431 | if ((cpid = fork()) == 0) { |
62e76326 | 1432 | /* child */ |
f75662c9 | 1433 | execl(script, squid_start_script, (char *)NULL); |
482aa790 | 1434 | _exit(-1); |
e18d7fdc | 1435 | } else { |
62e76326 | 1436 | do { |
e18d7fdc | 1437 | #ifdef _SQUID_NEXT_ |
62e76326 | 1438 | union wait status; |
1439 | rpid = wait3(&status, 0, NULL); | |
e18d7fdc | 1440 | #else |
62e76326 | 1441 | |
1442 | int status; | |
1443 | rpid = waitpid(-1, &status, 0); | |
e18d7fdc | 1444 | #endif |
62e76326 | 1445 | |
1446 | } while (rpid != cpid); | |
e18d7fdc | 1447 | } |
1448 | } | |
1449 | ||
a50bfe93 | 1450 | #endif /* _SQUID_MSWIN_ */ |
1451 | ||
efd900cb | 1452 | static int |
1453 | checkRunningPid(void) | |
1454 | { | |
1455 | pid_t pid; | |
e0077312 | 1456 | |
1457 | if (!debug_log) | |
1458 | debug_log = stderr; | |
1459 | ||
efd900cb | 1460 | pid = readPidFile(); |
62e76326 | 1461 | |
efd900cb | 1462 | if (pid < 2) |
62e76326 | 1463 | return 0; |
1464 | ||
efd900cb | 1465 | if (kill(pid, 0) < 0) |
62e76326 | 1466 | return 0; |
1467 | ||
cb7a4fcb | 1468 | debugs(0, 0, "Squid is already running! Process ID " << pid); |
62e76326 | 1469 | |
efd900cb | 1470 | return 1; |
1471 | } | |
1472 | ||
f95b8144 | 1473 | static void |
bbe199dc | 1474 | watch_child(char *argv[]) |
f95b8144 | 1475 | { |
a50bfe93 | 1476 | #ifndef _SQUID_MSWIN_ |
f95b8144 | 1477 | char *prog; |
f95b8144 | 1478 | int failcount = 0; |
1479 | time_t start; | |
1480 | time_t stop; | |
1481 | #ifdef _SQUID_NEXT_ | |
62e76326 | 1482 | |
f95b8144 | 1483 | union wait status; |
1484 | #else | |
62e76326 | 1485 | |
f95b8144 | 1486 | int status; |
1487 | #endif | |
62e76326 | 1488 | |
e3a3b845 | 1489 | pid_t pid; |
c99c5397 | 1490 | #ifdef TIOCNOTTY |
1491 | ||
54f742e7 | 1492 | int i; |
c99c5397 | 1493 | #endif |
1494 | ||
742724a4 | 1495 | int nullfd; |
62e76326 | 1496 | |
f95b8144 | 1497 | if (*(argv[0]) == '(') |
62e76326 | 1498 | return; |
1499 | ||
7dbca7a4 | 1500 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1501 | |
54f742e7 | 1502 | if ((pid = fork()) < 0) |
62e76326 | 1503 | syslog(LOG_ALERT, "fork failed: %s", xstrerror()); |
54f742e7 | 1504 | else if (pid > 0) |
62e76326 | 1505 | exit(0); |
1506 | ||
54f742e7 | 1507 | if (setsid() < 0) |
62e76326 | 1508 | syslog(LOG_ALERT, "setsid failed: %s", xstrerror()); |
1509 | ||
efd900cb | 1510 | closelog(); |
62e76326 | 1511 | |
54f742e7 | 1512 | #ifdef TIOCNOTTY |
62e76326 | 1513 | |
c4aefe96 | 1514 | if ((i = open("/dev/tty", O_RDWR | O_TEXT)) >= 0) { |
62e76326 | 1515 | ioctl(i, TIOCNOTTY, NULL); |
1516 | close(i); | |
54f742e7 | 1517 | } |
62e76326 | 1518 | |
54f742e7 | 1519 | #endif |
b05490a8 | 1520 | |
7f6ffd15 | 1521 | /* |
1522 | * RBCOLLINS - if cygwin stackdumps when squid is run without | |
1523 | * -N, check the cygwin1.dll version, it needs to be AT LEAST | |
1524 | * 1.1.3. execvp had a bit overflow error in a loop.. | |
1525 | */ | |
742724a4 | 1526 | /* Connect stdio to /dev/null in daemon mode */ |
4da086c4 | 1527 | nullfd = open(_PATH_DEVNULL, O_RDWR | O_TEXT); |
62e76326 | 1528 | |
e4a1325e | 1529 | if (nullfd < 0) |
4da086c4 | 1530 | fatalf(_PATH_DEVNULL " %s\n", xstrerror()); |
e4a1325e | 1531 | |
742724a4 | 1532 | dup2(nullfd, 0); |
62e76326 | 1533 | |
742724a4 | 1534 | if (opt_debug_stderr < 0) { |
62e76326 | 1535 | dup2(nullfd, 1); |
1536 | dup2(nullfd, 2); | |
742724a4 | 1537 | } |
62e76326 | 1538 | |
f95b8144 | 1539 | for (;;) { |
62e76326 | 1540 | mainStartScript(argv[0]); |
1541 | ||
1542 | if ((pid = fork()) == 0) { | |
1543 | /* child */ | |
7dbca7a4 | 1544 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1545 | prog = xstrdup(argv[0]); |
1546 | argv[0] = xstrdup("(squid)"); | |
1547 | execvp(prog, argv); | |
1548 | syslog(LOG_ALERT, "execvp failed: %s", xstrerror()); | |
1549 | } | |
1550 | ||
1551 | /* parent */ | |
7dbca7a4 | 1552 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1553 | |
1554 | syslog(LOG_NOTICE, "Squid Parent: child process %d started", pid); | |
1555 | ||
1556 | time(&start); | |
1557 | ||
1558 | squid_signal(SIGINT, SIG_IGN, SA_RESTART); | |
1559 | ||
f95b8144 | 1560 | #ifdef _SQUID_NEXT_ |
62e76326 | 1561 | |
1562 | pid = wait3(&status, 0, NULL); | |
1563 | ||
f95b8144 | 1564 | #else |
62e76326 | 1565 | |
1566 | pid = waitpid(-1, &status, 0); | |
1567 | ||
1568 | #endif | |
1569 | ||
1570 | time(&stop); | |
1571 | ||
1572 | if (WIFEXITED(status)) { | |
1573 | syslog(LOG_NOTICE, | |
1574 | "Squid Parent: child process %d exited with status %d", | |
1575 | pid, WEXITSTATUS(status)); | |
1576 | } else if (WIFSIGNALED(status)) { | |
1577 | syslog(LOG_NOTICE, | |
cc192b50 | 1578 | "Squid Parent: child process %d exited due to signal %d with status %d", |
1579 | pid, WTERMSIG(status), WEXITSTATUS(status)); | |
62e76326 | 1580 | } else { |
1581 | syslog(LOG_NOTICE, "Squid Parent: child process %d exited", pid); | |
1582 | } | |
1583 | ||
1584 | if (stop - start < 10) | |
1585 | failcount++; | |
1586 | else | |
1587 | failcount = 0; | |
1588 | ||
1589 | if (failcount == 5) { | |
1590 | syslog(LOG_ALERT, "Exiting due to repeated, frequent failures"); | |
1591 | exit(1); | |
1592 | } | |
1593 | ||
1594 | if (WIFEXITED(status)) | |
1595 | if (WEXITSTATUS(status) == 0) | |
1596 | exit(0); | |
1597 | ||
1598 | if (WIFSIGNALED(status)) { | |
1599 | switch (WTERMSIG(status)) { | |
1600 | ||
1601 | case SIGKILL: | |
1602 | exit(0); | |
1603 | break; | |
1604 | ||
06a0fbd3 | 1605 | case SIGINT: |
1606 | case SIGTERM: | |
26ac0430 | 1607 | syslog(LOG_ALERT, "Exiting due to unexpected forced shutdown"); |
06a0fbd3 | 1608 | exit(1); |
1609 | break; | |
1610 | ||
62e76326 | 1611 | default: |
1612 | break; | |
1613 | } | |
1614 | } | |
1615 | ||
1616 | squid_signal(SIGINT, SIG_DFL, SA_RESTART); | |
1617 | sleep(3); | |
f95b8144 | 1618 | } |
62e76326 | 1619 | |
bbe199dc | 1620 | /* NOTREACHED */ |
a50bfe93 | 1621 | #endif /* _SQUID_MSWIN_ */ |
a572d8be | 1622 | |
f95b8144 | 1623 | } |
fff6ad65 | 1624 | |
9ec1a1dc | 1625 | static void |
8ff3fa2e | 1626 | SquidShutdown() |
fff6ad65 | 1627 | { |
d71e4674 AR |
1628 | /* XXX: This function is called after the main loop has quit, which |
1629 | * means that no AsyncCalls would be called, including close handlers. | |
1630 | * TODO: We need to close/shut/free everything that needs calls before | |
1631 | * exiting the loop. | |
26ac0430 | 1632 | */ |
d71e4674 | 1633 | |
6c1962dd | 1634 | #if USE_WIN32_SERVICE |
1635 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1636 | #endif | |
1637 | ||
bf8fe701 | 1638 | debugs(1, 1, "Shutting down..."); |
95a83c22 | 1639 | #if USE_DNSSERVERS |
1640 | ||
1641 | dnsShutdown(); | |
1642 | #else | |
1643 | ||
1644 | idnsShutdown(); | |
1645 | #endif | |
1646 | ||
1647 | redirectShutdown(); | |
1648 | externalAclShutdown(); | |
d723bf6b | 1649 | icpConnectionClose(); |
1650 | #if USE_HTCP | |
62e76326 | 1651 | |
d723bf6b | 1652 | htcpSocketClose(); |
1653 | #endif | |
1654 | #ifdef SQUID_SNMP | |
62e76326 | 1655 | |
d723bf6b | 1656 | snmpConnectionClose(); |
320e9f36 | 1657 | #endif |
eb824054 | 1658 | #if USE_WCCP |
62e76326 | 1659 | |
320e9f36 | 1660 | wccpConnectionClose(); |
d723bf6b | 1661 | #endif |
0b0cfcf2 | 1662 | #if USE_WCCPv2 |
1663 | ||
1664 | wccp2ConnectionClose(); | |
1665 | #endif | |
62e76326 | 1666 | |
fff6ad65 | 1667 | releaseServerSockets(); |
d723bf6b | 1668 | commCloseAllSockets(); |
515ec4dc | 1669 | #if DELAY_POOLS |
62e76326 | 1670 | |
b67e2c8c | 1671 | DelayPools::FreePools(); |
515ec4dc | 1672 | #endif |
62e76326 | 1673 | |
5dae8514 | 1674 | authenticateShutdown(); |
6c1962dd | 1675 | #if USE_WIN32_SERVICE |
1676 | ||
1677 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1678 | #endif | |
62e76326 | 1679 | |
c8f4eac4 | 1680 | Store::Root().sync(); /* Flush pending object writes/unlinks */ |
4d075ba0 | 1681 | #if USE_UNLINKD |
1682 | ||
1683 | unlinkdClose(); /* after sync/flush */ | |
1684 | #endif | |
fc68f6b1 | 1685 | |
fff6ad65 | 1686 | storeDirWriteCleanLogs(0); |
1687 | PrintRusage(); | |
1688 | dumpMallocStats(); | |
c8f4eac4 | 1689 | Store::Root().sync(); /* Flush log writes */ |
fff6ad65 | 1690 | storeLogClose(); |
1691 | accessLogClose(); | |
5b824235 | 1692 | useragentLogClose(); |
c9b99797 | 1693 | refererCloseLog(); |
225644d7 | 1694 | #if WIP_FWD_LOG |
62e76326 | 1695 | |
225644d7 | 1696 | fwdUninit(); |
1697 | #endif | |
62e76326 | 1698 | |
c8f4eac4 | 1699 | Store::Root().sync(); /* Flush log close */ |
59b2d47f | 1700 | StoreFileSystem::FreeAllFs(); |
b9ae18aa | 1701 | DiskIOModule::FreeAllModules(); |
afec404b | 1702 | #if LEAK_CHECK_MODE && 0 /* doesn't work at the moment */ |
62e76326 | 1703 | |
fff6ad65 | 1704 | configFreeMemory(); |
1705 | storeFreeMemory(); | |
33ab18e8 | 1706 | /*stmemFreeMemory(); */ |
fff6ad65 | 1707 | netdbFreeMemory(); |
1708 | ipcacheFreeMemory(); | |
1709 | fqdncacheFreeMemory(); | |
1710 | asnFreeMemory(); | |
26a369ba | 1711 | clientdbFreeMemory(); |
7021844c | 1712 | httpHeaderCleanModule(); |
d2db411c | 1713 | statFreeMemory(); |
f1fc2a8d | 1714 | eventFreeMemory(); |
c68e9c6b | 1715 | mimeFreeMemory(); |
1716 | errorClean(); | |
fff6ad65 | 1717 | #endif |
26a369ba | 1718 | #if !XMALLOC_TRACE |
62e76326 | 1719 | |
54f742e7 | 1720 | if (opt_no_daemon) { |
62e76326 | 1721 | file_close(0); |
1722 | file_close(1); | |
1723 | file_close(2); | |
54f742e7 | 1724 | } |
62e76326 | 1725 | |
33ab18e8 | 1726 | #endif |
fff6ad65 | 1727 | fdDumpOpen(); |
62e76326 | 1728 | |
236d1779 | 1729 | comm_exit(); |
62e76326 | 1730 | |
ddb43c58 | 1731 | memClean(); |
62e76326 | 1732 | |
33ab18e8 | 1733 | #if XMALLOC_TRACE |
62e76326 | 1734 | |
26a369ba | 1735 | xmalloc_find_leaks(); |
62e76326 | 1736 | |
bf8fe701 | 1737 | debugs(1, 0, "Memory used after shutdown: " << xmalloc_total); |
62e76326 | 1738 | |
33ab18e8 | 1739 | #endif |
36a97e19 | 1740 | #if MEM_GEN_TRACE |
62e76326 | 1741 | |
399e85ea | 1742 | log_trace_done(); |
62e76326 | 1743 | |
36a97e19 | 1744 | #endif |
62e76326 | 1745 | |
ab50ee9e | 1746 | if (Config.pidFilename && strcmp(Config.pidFilename, "none") != 0) { |
62e76326 | 1747 | enter_suid(); |
1748 | safeunlink(Config.pidFilename, 0); | |
1749 | leave_suid(); | |
ab50ee9e | 1750 | } |
62e76326 | 1751 | |
bf8fe701 | 1752 | debugs(1, 1, "Squid Cache (Version " << version_string << "): Exiting normally."); |
62e76326 | 1753 | |
0cfa98cb | 1754 | /* |
1755 | * DPW 2006-10-23 | |
1756 | * We used to fclose(debug_log) here if it was set, but then | |
1757 | * we forgot to set it to NULL. That caused some coredumps | |
1758 | * because exit() ends up calling a bunch of destructors and | |
1759 | * such. So rather than forcing the debug_log to close, we'll | |
1760 | * leave it open so that those destructors can write some | |
1761 | * debugging if necessary. The file will be closed anyway when | |
1762 | * the process truly exits. | |
1763 | */ | |
62e76326 | 1764 | |
ae1feb30 | 1765 | exit(shutdown_status); |
fff6ad65 | 1766 | } |
bef81ea5 | 1767 |