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30a4f2a8 | 1 | /* |
262a0e14 | 2 | * $Id$ |
30a4f2a8 | 3 | * |
b510f3a1 | 4 | * DEBUG: section 01 Startup and Main Loop |
30a4f2a8 | 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" |
3ff65596 AR |
37 | #if ICAP_CLIENT |
38 | #include "adaptation/icap/icap_log.h" | |
39 | #endif | |
2f1431ea | 40 | #if USE_AUTH |
3ad63615 | 41 | #include "auth/Gadgets.h" |
2f1431ea | 42 | #endif |
6d57128b | 43 | #include "base/RunnersRegistry.h" |
3d93a84d | 44 | #include "base/TextException.h" |
9a0a18de AJ |
45 | #if USE_DELAY_POOLS |
46 | #include "ClientDelayConfig.h" | |
47 | #endif | |
d841c88d | 48 | #include "comm.h" |
62ee09ca | 49 | #include "ConfigParser.h" |
96c2bb61 | 50 | #include "CpuAffinity.h" |
9a0a18de AJ |
51 | #if USE_DELAY_POOLS |
52 | #include "DelayPools.h" | |
53 | #endif | |
aa839030 | 54 | #include "errorpage.h" |
a553a5a3 | 55 | #include "event.h" |
56 | #include "EventLoop.h" | |
62ee09ca | 57 | #include "ExternalACL.h" |
e6ccf245 | 58 | #include "Store.h" |
59 | #include "ICP.h" | |
4daaf3cb | 60 | #include "ident/Ident.h" |
528b2c61 | 61 | #include "HttpReply.h" |
62ee09ca | 62 | #include "pconn.h" |
528b2c61 | 63 | #include "Mem.h" |
3ad63615 AR |
64 | #include "acl/Asn.h" |
65 | #include "acl/Acl.h" | |
75faaa7a | 66 | #include "htcp.h" |
59b2d47f | 67 | #include "StoreFileSystem.h" |
b9ae18aa | 68 | #include "DiskIO/DiskIOModule.h" |
40daaeb8 | 69 | #include "ipc/Kids.h" |
10cefb7b | 70 | #include "ipc/Coordinator.h" |
71 | #include "ipc/Strand.h" | |
055421ee | 72 | #include "ip/tools.h" |
985c86bc | 73 | #include "SquidTime.h" |
c8f4eac4 | 74 | #include "SwapDir.h" |
b6b6f466 | 75 | #include "forward.h" |
d9e7ee1f | 76 | #include "MemPool.h" |
9b5c4a9a AJ |
77 | #include "icmp/IcmpSquid.h" |
78 | #include "icmp/net_db.h" | |
44a47c6e | 79 | |
57afc994 AR |
80 | #if USE_LOADABLE_MODULES |
81 | #include "LoadableModules.h" | |
82 | #endif | |
83 | ||
95d2589c CT |
84 | #if USE_SSL_CRTD |
85 | #include "ssl/helper.h" | |
86 | #include "ssl/certificate_db.h" | |
87 | #endif | |
88 | ||
89 | #if USE_SSL | |
90 | #include "ssl/context_storage.h" | |
91 | #endif | |
92 | ||
b958cb0f | 93 | #if ICAP_CLIENT |
26cc52cb | 94 | #include "adaptation/icap/Config.h" |
b958cb0f | 95 | #endif |
6e5db507 | 96 | #if USE_ECAP |
1f3c65fc | 97 | #include "adaptation/ecap/Config.h" |
6e5db507 | 98 | #endif |
b958cb0f AR |
99 | #if USE_ADAPTATION |
100 | #include "adaptation/Config.h" | |
101 | #endif | |
79039294 AR |
102 | #if USE_SQUID_ESI |
103 | #include "esi/Module.h" | |
104 | #endif | |
7b5b7ba8 CT |
105 | #include "fs/Module.h" |
106 | ||
25f98340 AJ |
107 | #if HAVE_PATHS_H |
108 | #include <paths.h> | |
109 | #endif | |
1a774556 | 110 | |
25f98340 | 111 | #if USE_WIN32_SERVICE |
1a774556 | 112 | #include "squid_windows.h" |
113 | #include <process.h> | |
114 | ||
115 | static int opt_install_service = FALSE; | |
116 | static int opt_remove_service = FALSE; | |
117 | static int opt_signal_service = FALSE; | |
118 | static int opt_command_line = FALSE; | |
119 | extern void WIN32_svcstatusupdate(DWORD, DWORD); | |
120 | void WINAPI WIN32_svcHandler(DWORD); | |
121 | ||
122 | #endif | |
123 | ||
4fe75473 FC |
124 | #ifndef SQUID_BUILD_INFO |
125 | #define SQUID_BUILD_INFO "" | |
126 | #endif | |
127 | ||
5e6d4736 | 128 | static char *opt_syslog_facility = NULL; |
30a4f2a8 | 129 | static int icpPortNumOverride = 1; /* Want to detect "-u 0" */ |
e13ee7ad | 130 | static int configured_once = 0; |
30a4f2a8 | 131 | #if MALLOC_DBG |
4d64d74a | 132 | static int malloc_debug_level = 0; |
30a4f2a8 | 133 | #endif |
5cd39a10 | 134 | static volatile int do_reconfigure = 0; |
135 | static volatile int do_rotate = 0; | |
2681d383 | 136 | static volatile int do_shutdown = 0; |
ae1feb30 | 137 | static volatile int shutdown_status = 0; |
4d7add01 | 138 | |
a2c48c98 AR |
139 | static int RotateSignal = -1; |
140 | static int ReconfigureSignal = -1; | |
141 | static int ShutdownSignal = -1; | |
142 | ||
5cd39a10 | 143 | static void mainRotate(void); |
d71e4674 AR |
144 | static void mainReconfigureStart(void); |
145 | static void mainReconfigureFinish(void*); | |
f5b8bbc4 | 146 | static void mainInitialize(void); |
f5b8bbc4 | 147 | static void usage(void); |
63be0a78 | 148 | static void mainParseOptions(int argc, char *argv[]); |
f5b8bbc4 | 149 | static void sendSignal(void); |
150 | static void serverConnectionsOpen(void); | |
d71e4674 | 151 | static void serverConnectionsClose(void); |
bbe199dc | 152 | static void watch_child(char **); |
85407535 | 153 | static void setEffectiveUser(void); |
36a97e19 | 154 | #if MEM_GEN_TRACE |
155 | extern void log_trace_done(); | |
156 | extern void log_trace_init(char *); | |
157 | #endif | |
8ff3fa2e | 158 | static void SquidShutdown(void); |
b6a2f15e | 159 | static void mainSetCwd(void); |
efd900cb | 160 | static int checkRunningPid(void); |
85407535 | 161 | |
b293c4d8 | 162 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 163 | static const char *squid_start_script = "squid_start"; |
b293c4d8 | 164 | #endif |
e18d7fdc | 165 | |
9bc73deb | 166 | #if TEST_ACCESS |
167 | #include "test_access.c" | |
168 | #endif | |
169 | ||
63be0a78 | 170 | /** temporary thunk across to the unrefactored store interface */ |
8ff3fa2e | 171 | |
172 | class StoreRootEngine : public AsyncEngine | |
173 | { | |
174 | ||
175 | public: | |
26ac0430 | 176 | int checkEvents(int timeout) { |
8ff3fa2e | 177 | Store::Root().callback(); |
178 | return EVENT_IDLE; | |
179 | }; | |
180 | }; | |
181 | ||
9688b0ae | 182 | class SignalEngine: public AsyncEngine |
a553a5a3 | 183 | { |
184 | ||
185 | public: | |
e053c141 | 186 | SignalEngine(EventLoop &evtLoop) : loop(evtLoop) {} |
9688b0ae | 187 | virtual int checkEvents(int timeout); |
a553a5a3 | 188 | |
189 | private: | |
26ac0430 | 190 | static void StopEventLoop(void * data) { |
9688b0ae | 191 | static_cast<SignalEngine *>(data)->loop.stop(); |
a553a5a3 | 192 | } |
193 | ||
9688b0ae | 194 | void doShutdown(time_t wait); |
195 | ||
a553a5a3 | 196 | EventLoop &loop; |
197 | }; | |
198 | ||
9688b0ae | 199 | int |
200 | SignalEngine::checkEvents(int timeout) | |
a553a5a3 | 201 | { |
9688b0ae | 202 | PROF_start(SignalEngine_checkEvents); |
fc68f6b1 | 203 | |
a553a5a3 | 204 | if (do_reconfigure) { |
d71e4674 | 205 | mainReconfigureStart(); |
a553a5a3 | 206 | do_reconfigure = 0; |
a553a5a3 | 207 | } else if (do_rotate) { |
208 | mainRotate(); | |
209 | do_rotate = 0; | |
210 | } else if (do_shutdown) { | |
9688b0ae | 211 | doShutdown(do_shutdown > 0 ? (int) Config.shutdownLifetime : 0); |
a553a5a3 | 212 | do_shutdown = 0; |
26ac0430 | 213 | } |
a2c48c98 AR |
214 | BroadcastSignalIfAny(DebugSignal); |
215 | BroadcastSignalIfAny(RotateSignal); | |
216 | BroadcastSignalIfAny(ReconfigureSignal); | |
217 | BroadcastSignalIfAny(ShutdownSignal); | |
a553a5a3 | 218 | |
9688b0ae | 219 | PROF_stop(SignalEngine_checkEvents); |
220 | return EVENT_IDLE; | |
221 | } | |
a553a5a3 | 222 | |
9688b0ae | 223 | void |
224 | SignalEngine::doShutdown(time_t wait) | |
225 | { | |
226 | debugs(1, 1, "Preparing for shutdown after " << statCounter.client_http.requests << " requests"); | |
227 | debugs(1, 1, "Waiting " << wait << " seconds for active connections to finish"); | |
8ff3fa2e | 228 | |
9688b0ae | 229 | shutting_down = 1; |
230 | ||
231 | #if USE_WIN32_SERVICE | |
232 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, (wait + 1) * 1000); | |
233 | #endif | |
234 | ||
0bcb6908 | 235 | /* run the closure code which can be shared with reconfigure */ |
9688b0ae | 236 | serverConnectionsClose(); |
2f1431ea | 237 | #if USE_AUTH |
0bcb6908 | 238 | /* detach the auth components (only do this on full shutdown) */ |
c6cf8dee | 239 | Auth::Scheme::FreeAll(); |
2f1431ea | 240 | #endif |
9688b0ae | 241 | eventAdd("SquidShutdown", &StopEventLoop, this, (double) (wait + 1), 1, false); |
a553a5a3 | 242 | } |
243 | ||
b8d8561b | 244 | static void |
0673c0ba | 245 | usage(void) |
ccff9601 | 246 | { |
0ee4272b | 247 | fprintf(stderr, |
0e657244 | 248 | #if USE_WIN32_SERVICE |
8eb28163 | 249 | "Usage: %s [-cdhirvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal] [-n name] [-O CommandLine]\n" |
0e657244 | 250 | #else |
8eb28163 | 251 | "Usage: %s [-cdhvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal]\n" |
0e657244 | 252 | #endif |
62e76326 | 253 | " -a port Specify HTTP port number (default: %d).\n" |
254 | " -d level Write debugging to stderr also.\n" | |
255 | " -f file Use given config-file instead of\n" | |
256 | " %s\n" | |
257 | " -h Print help message.\n" | |
0e657244 | 258 | #if USE_WIN32_SERVICE |
259 | " -i Installs as a Windows Service (see -n option).\n" | |
260 | #endif | |
62e76326 | 261 | " -k reconfigure|rotate|shutdown|interrupt|kill|debug|check|parse\n" |
262 | " Parse configuration file, then send signal to \n" | |
263 | " running copy (except -k parse) and exit.\n" | |
0e657244 | 264 | #if USE_WIN32_SERVICE |
265 | " -n name Specify Windows Service name to use for service operations\n" | |
266 | " default is: " _WIN_SQUID_DEFAULT_SERVICE_NAME ".\n" | |
267 | " -r Removes a Windows Service (see -n option).\n" | |
268 | #endif | |
5e6d4736 | 269 | " -s | -l facility\n" |
270 | " Enable logging to syslog.\n" | |
62e76326 | 271 | " -u port Specify ICP port number (default: %d), disable with 0.\n" |
272 | " -v Print version.\n" | |
273 | " -z Create swap directories\n" | |
274 | " -C Do not catch fatal signals.\n" | |
8eb28163 | 275 | " -D OBSOLETE. Scheduled for removal.\n" |
62e76326 | 276 | " -F Don't serve any requests until store is rebuilt.\n" |
277 | " -N No daemon mode.\n" | |
0e657244 | 278 | #if USE_WIN32_SERVICE |
279 | " -O options\n" | |
280 | " Set Windows Service Command line options in Registry.\n" | |
281 | #endif | |
62e76326 | 282 | " -R Do not set REUSEADDR on port.\n" |
283 | " -S Double-check swap during rebuild.\n" | |
62e76326 | 284 | " -X Force full debugging.\n" |
285 | " -Y Only return UDP_HIT or UDP_MISS_NOFETCH during fast reload.\n", | |
7dbca7a4 | 286 | APP_SHORTNAME, CACHE_HTTP_PORT, DefaultConfigFile, CACHE_ICP_PORT); |
77ffc99f | 287 | exit(1); |
ccff9601 | 288 | } |
289 | ||
63be0a78 | 290 | /** |
291 | * Parse the parameters received via command line interface. | |
292 | * | |
d85b8894 AJ |
293 | \param argc Number of options received on command line |
294 | \param argv List of parameters received on command line | |
63be0a78 | 295 | */ |
b8d8561b | 296 | static void |
297 | mainParseOptions(int argc, char *argv[]) | |
090089c4 | 298 | { |
090089c4 | 299 | extern char *optarg; |
4d64d74a | 300 | int c; |
090089c4 | 301 | |
0e657244 | 302 | #if USE_WIN32_SERVICE |
5e6d4736 | 303 | while ((c = getopt(argc, argv, "CDFNO:RSVYXa:d:f:hik:m::n:rsl:u:vz?")) != -1) |
0e657244 | 304 | #else |
05f1c52c | 305 | while ((c = getopt(argc, argv, "CDFNRSYXa:d:f:hk:m::sl:u:vz?")) != -1) |
0e657244 | 306 | #endif |
9b7292ce | 307 | { |
308 | ||
26ac0430 | 309 | switch (c) { |
62e76326 | 310 | |
311 | case 'C': | |
63be0a78 | 312 | /** \par C |
313 | * Unset/disabel global option for catchign signals. opt_catch_signals */ | |
62e76326 | 314 | opt_catch_signals = 0; |
315 | break; | |
316 | ||
317 | case 'D': | |
63be0a78 | 318 | /** \par D |
8eb28163 AJ |
319 | * OBSOLETE: WAS: override to prevent optional startup DNS tests. */ |
320 | debugs(1,DBG_CRITICAL, "WARNING: -D command-line option is obsolete."); | |
62e76326 | 321 | break; |
322 | ||
323 | case 'F': | |
63be0a78 | 324 | /** \par F |
325 | * Set global option for foreground rebuild. opt_foreground_rebuild */ | |
62e76326 | 326 | opt_foreground_rebuild = 1; |
327 | break; | |
328 | ||
329 | case 'N': | |
63be0a78 | 330 | /** \par N |
331 | * Set global option for 'no_daemon' mode. opt_no_daemon */ | |
62e76326 | 332 | opt_no_daemon = 1; |
333 | break; | |
63be0a78 | 334 | |
0e657244 | 335 | #if USE_WIN32_SERVICE |
336 | ||
337 | case 'O': | |
63be0a78 | 338 | /** \par O |
339 | * Set global option. opt_command_lin and WIN32_Command_Line */ | |
0e657244 | 340 | opt_command_line = 1; |
341 | WIN32_Command_Line = xstrdup(optarg); | |
342 | break; | |
343 | #endif | |
62e76326 | 344 | |
345 | case 'R': | |
63be0a78 | 346 | /** \par R |
347 | * Unset/disable global option opt_reuseaddr */ | |
62e76326 | 348 | opt_reuseaddr = 0; |
349 | break; | |
350 | ||
351 | case 'S': | |
63be0a78 | 352 | /** \par S |
353 | * Set global option opt_store_doublecheck */ | |
62e76326 | 354 | opt_store_doublecheck = 1; |
355 | break; | |
356 | ||
62e76326 | 357 | case 'X': |
63be0a78 | 358 | /** \par X |
359 | * Force full debugging */ | |
62493678 AJ |
360 | Debug::parseOptions("rotate=0 ALL,9"); |
361 | Debug::override_X = 1; | |
62e76326 | 362 | sigusr2_handle(SIGUSR2); |
62e76326 | 363 | break; |
364 | ||
365 | case 'Y': | |
63be0a78 | 366 | /** \par Y |
367 | * Set global option opt_reload_hit_only */ | |
62e76326 | 368 | opt_reload_hit_only = 1; |
62e76326 | 369 | break; |
370 | ||
0e657244 | 371 | #if USE_WIN32_SERVICE |
372 | ||
373 | case 'i': | |
63be0a78 | 374 | /** \par i |
375 | * Set global option opt_install_service (to TRUE) */ | |
0e657244 | 376 | opt_install_service = TRUE; |
0e657244 | 377 | break; |
0e657244 | 378 | #endif |
379 | ||
62e76326 | 380 | case 'a': |
63be0a78 | 381 | /** \par a |
382 | * Add optional HTTP port as given following the option */ | |
62e76326 | 383 | add_http_port(optarg); |
62e76326 | 384 | break; |
385 | ||
386 | case 'd': | |
63be0a78 | 387 | /** \par d |
62493678 AJ |
388 | * Set global option Debug::log_stderr to the number given follwoign the option */ |
389 | Debug::log_stderr = atoi(optarg); | |
62e76326 | 390 | break; |
391 | ||
392 | case 'f': | |
63be0a78 | 393 | /** \par f |
394 | * Load the file given instead of the default squid.conf. */ | |
62e76326 | 395 | xfree(ConfigFile); |
62e76326 | 396 | ConfigFile = xstrdup(optarg); |
62e76326 | 397 | break; |
398 | ||
399 | case 'k': | |
63be0a78 | 400 | /** \par k |
401 | * Run the administrative action given following the option */ | |
fc68f6b1 | 402 | |
63be0a78 | 403 | /** \li When its an unknown option display the usage help. */ |
62e76326 | 404 | if ((int) strlen(optarg) < 1) |
405 | usage(); | |
406 | ||
407 | if (!strncmp(optarg, "reconfigure", strlen(optarg))) | |
63be0a78 | 408 | /** \li On reconfigure send SIGHUP. */ |
62e76326 | 409 | opt_send_signal = SIGHUP; |
410 | else if (!strncmp(optarg, "rotate", strlen(optarg))) | |
63be0a78 | 411 | /** \li On rotate send SIGQUIT or SIGUSR1. */ |
7e7a0442 | 412 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 413 | |
414 | opt_send_signal = SIGQUIT; | |
415 | ||
e3175d1f | 416 | #else |
62e76326 | 417 | |
418 | opt_send_signal = SIGUSR1; | |
419 | ||
e3175d1f | 420 | #endif |
62e76326 | 421 | |
422 | else if (!strncmp(optarg, "debug", strlen(optarg))) | |
63be0a78 | 423 | /** \li On debug send SIGTRAP or SIGUSR2. */ |
7e7a0442 | 424 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 425 | |
426 | opt_send_signal = SIGTRAP; | |
427 | ||
e3175d1f | 428 | #else |
62e76326 | 429 | |
430 | opt_send_signal = SIGUSR2; | |
431 | ||
432 | #endif | |
433 | ||
434 | else if (!strncmp(optarg, "shutdown", strlen(optarg))) | |
63be0a78 | 435 | /** \li On shutdown send SIGTERM. */ |
62e76326 | 436 | opt_send_signal = SIGTERM; |
437 | else if (!strncmp(optarg, "interrupt", strlen(optarg))) | |
63be0a78 | 438 | /** \li On interrupt send SIGINT. */ |
62e76326 | 439 | opt_send_signal = SIGINT; |
440 | else if (!strncmp(optarg, "kill", strlen(optarg))) | |
63be0a78 | 441 | /** \li On kill send SIGKILL. */ |
62e76326 | 442 | opt_send_signal = SIGKILL; |
ae1feb30 | 443 | |
444 | #ifdef SIGTTIN | |
445 | ||
446 | else if (!strncmp(optarg, "restart", strlen(optarg))) | |
63be0a78 | 447 | /** \li On restart send SIGTTIN. (exit and restart by parent) */ |
448 | opt_send_signal = SIGTTIN; | |
ae1feb30 | 449 | |
450 | #endif | |
451 | ||
62e76326 | 452 | else if (!strncmp(optarg, "check", strlen(optarg))) |
63be0a78 | 453 | /** \li On check send 0 / SIGNULL. */ |
62e76326 | 454 | opt_send_signal = 0; /* SIGNULL */ |
455 | else if (!strncmp(optarg, "parse", strlen(optarg))) | |
63be0a78 | 456 | /** \li On parse set global flag to re-parse the config file only. */ |
457 | opt_parse_cfg_only = 1; | |
62e76326 | 458 | else |
459 | usage(); | |
460 | ||
461 | break; | |
462 | ||
463 | case 'm': | |
63be0a78 | 464 | /** \par m |
465 | * Set global malloc_debug_level to the value given following the option. | |
466 | * if none is given it toggles the xmalloc_trace option on/off */ | |
62e76326 | 467 | if (optarg) { |
30a4f2a8 | 468 | #if MALLOC_DBG |
fc68f6b1 | 469 | malloc_debug_level = atoi(optarg); |
30a4f2a8 | 470 | #else |
fc68f6b1 | 471 | fatal("Need to add -DMALLOC_DBG when compiling to use -mX option"); |
33ab18e8 | 472 | #endif |
62e76326 | 473 | |
474 | } else { | |
33ab18e8 | 475 | #if XMALLOC_TRACE |
62e76326 | 476 | xmalloc_trace = !xmalloc_trace; |
33ab18e8 | 477 | #else |
62e76326 | 478 | fatal("Need to configure --enable-xmalloc-debug-trace to use -m option"); |
30a4f2a8 | 479 | #endif |
62e76326 | 480 | } |
d9e7ee1f | 481 | break; |
d9e7ee1f | 482 | |
0e657244 | 483 | #if USE_WIN32_SERVICE |
484 | ||
485 | case 'n': | |
63be0a78 | 486 | /** \par n |
487 | * Set global option opt_signal_service (to TRUE). | |
488 | * Stores the additional parameter given in global WIN32_Service_name */ | |
0e657244 | 489 | xfree(WIN32_Service_name); |
490 | ||
491 | WIN32_Service_name = xstrdup(optarg); | |
492 | ||
493 | opt_signal_service = TRUE; | |
494 | ||
495 | break; | |
496 | ||
497 | case 'r': | |
63be0a78 | 498 | /** \par r |
499 | * Set global option opt_remove_service (to TRUE) */ | |
0e657244 | 500 | opt_remove_service = TRUE; |
501 | ||
502 | break; | |
503 | ||
504 | #endif | |
505 | ||
5e6d4736 | 506 | case 'l': |
63be0a78 | 507 | /** \par l |
508 | * Stores the syslog facility name in global opt_syslog_facility | |
509 | * then performs actions for -s option. */ | |
5e6d4736 | 510 | opt_syslog_facility = xstrdup(optarg); |
511 | ||
62e76326 | 512 | case 's': |
63be0a78 | 513 | /** \par s |
514 | * Initialize the syslog for output */ | |
c307aec3 | 515 | #if HAVE_SYSLOG |
62e76326 | 516 | |
5e6d4736 | 517 | _db_set_syslog(opt_syslog_facility); |
0e657244 | 518 | |
62e76326 | 519 | break; |
0e657244 | 520 | |
c307aec3 | 521 | #else |
62e76326 | 522 | |
523 | fatal("Logging to syslog not available on this platform"); | |
0e657244 | 524 | |
62e76326 | 525 | /* NOTREACHED */ |
526 | #endif | |
527 | ||
528 | case 'u': | |
63be0a78 | 529 | /** \par u |
530 | * Store the ICP port number given in global option icpPortNumOverride | |
531 | * ensuring its a positive number. */ | |
62e76326 | 532 | icpPortNumOverride = atoi(optarg); |
533 | ||
534 | if (icpPortNumOverride < 0) | |
535 | icpPortNumOverride = 0; | |
536 | ||
537 | break; | |
538 | ||
539 | case 'v': | |
63be0a78 | 540 | /** \par v |
541 | * Display squid version and build information. Then exit. */ | |
4fe75473 FC |
542 | printf("Squid Cache: Version %s\n" ,version_string); |
543 | if (strlen(SQUID_BUILD_INFO)) | |
544 | printf("%s\n",SQUID_BUILD_INFO); | |
545 | printf( "configure options: %s\n", SQUID_CONFIGURE_OPTIONS); | |
62e76326 | 546 | |
1a774556 | 547 | #if USE_WIN32_SERVICE |
548 | ||
549 | printf("Compiled as Windows System Service.\n"); | |
550 | ||
551 | #endif | |
552 | ||
62e76326 | 553 | exit(0); |
554 | ||
555 | /* NOTREACHED */ | |
556 | ||
557 | case 'z': | |
63be0a78 | 558 | /** \par z |
62493678 AJ |
559 | * Set global option Debug::log_stderr and opt_create_swap_dirs */ |
560 | Debug::log_stderr = 1; | |
62e76326 | 561 | opt_create_swap_dirs = 1; |
62e76326 | 562 | break; |
563 | ||
63be0a78 | 564 | case 'h': |
565 | ||
62e76326 | 566 | case '?': |
567 | ||
568 | default: | |
63be0a78 | 569 | /** \par h,?, or unknown |
570 | * \copydoc usage() */ | |
62e76326 | 571 | usage(); |
572 | ||
573 | break; | |
574 | } | |
9b7292ce | 575 | |
090089c4 | 576 | } |
4d64d74a | 577 | } |
090089c4 | 578 | |
7a2f978b | 579 | /* ARGSUSED */ |
b293c4d8 | 580 | void |
9b7292ce | 581 | rotate_logs(int sig) |
582 | { | |
5cd39a10 | 583 | do_rotate = 1; |
a2c48c98 | 584 | RotateSignal = sig; |
a50bfe93 | 585 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 586 | #if !HAVE_SIGACTION |
62e76326 | 587 | |
30a4f2a8 | 588 | signal(sig, rotate_logs); |
589 | #endif | |
a50bfe93 | 590 | #endif |
30a4f2a8 | 591 | } |
592 | ||
7a2f978b | 593 | /* ARGSUSED */ |
b293c4d8 | 594 | void |
9b7292ce | 595 | reconfigure(int sig) |
596 | { | |
5cd39a10 | 597 | do_reconfigure = 1; |
a2c48c98 | 598 | ReconfigureSignal = sig; |
a50bfe93 | 599 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 600 | #if !HAVE_SIGACTION |
62e76326 | 601 | |
30a4f2a8 | 602 | signal(sig, reconfigure); |
603 | #endif | |
a50bfe93 | 604 | #endif |
30a4f2a8 | 605 | } |
606 | ||
b8d8561b | 607 | void |
9b7292ce | 608 | shut_down(int sig) |
609 | { | |
2681d383 | 610 | do_shutdown = sig == SIGINT ? -1 : 1; |
a2c48c98 | 611 | ShutdownSignal = sig; |
ae1feb30 | 612 | #ifdef SIGTTIN |
613 | ||
614 | if (SIGTTIN == sig) | |
615 | shutdown_status = 1; | |
616 | ||
617 | #endif | |
ca4b9ee6 DK |
618 | |
619 | const pid_t ppid = getppid(); | |
620 | ||
bd9fe5b4 | 621 | if (!IamMasterProcess() && ppid > 1) { |
ca4b9ee6 DK |
622 | // notify master that we are shutting down |
623 | if (kill(ppid, SIGUSR1) < 0) | |
624 | debugs(1, DBG_IMPORTANT, "Failed to send SIGUSR1 to master process," | |
625 | " pid " << ppid << ": " << xstrerror()); | |
626 | } | |
627 | ||
a50bfe93 | 628 | #ifndef _SQUID_MSWIN_ |
a67d2b2e | 629 | #if KILL_PARENT_OPT |
62e76326 | 630 | |
bd9fe5b4 | 631 | if (!IamMasterProcess() && ppid > 1) { |
ca4b9ee6 | 632 | debugs(1, DBG_IMPORTANT, "Killing master process, pid " << ppid); |
62e76326 | 633 | |
ca4b9ee6 DK |
634 | if (kill(ppid, sig) < 0) |
635 | debugs(1, DBG_IMPORTANT, "kill " << ppid << ": " << xstrerror()); | |
88738790 | 636 | } |
62e76326 | 637 | |
0f658b5b | 638 | #endif /* KILL_PARENT_OPT */ |
6e40f263 | 639 | #if SA_RESETHAND == 0 |
640 | signal(SIGTERM, SIG_DFL); | |
62e76326 | 641 | |
6e40f263 | 642 | signal(SIGINT, SIG_DFL); |
62e76326 | 643 | |
a50bfe93 | 644 | #endif |
6e40f263 | 645 | #endif |
30a4f2a8 | 646 | } |
647 | ||
24382924 | 648 | static void |
9b7292ce | 649 | serverConnectionsOpen(void) |
650 | { | |
7de94c8c AR |
651 | if (IamPrimaryProcess()) { |
652 | #if USE_WCCP | |
653 | ||
5667a628 | 654 | wccpConnectionOpen(); |
7de94c8c | 655 | #endif |
45aae82b | 656 | |
7de94c8c AR |
657 | #if USE_WCCPv2 |
658 | ||
5667a628 | 659 | wccp2ConnectionOpen(); |
7de94c8c AR |
660 | #endif |
661 | } | |
095ec2b1 AR |
662 | // start various proxying services if we are responsible for them |
663 | if (IamWorkerProcess()) { | |
5667a628 AR |
664 | clientOpenListenSockets(); |
665 | icpConnectionsOpen(); | |
ace287ee | 666 | #if USE_HTCP |
62e76326 | 667 | |
5667a628 | 668 | htcpInit(); |
ace287ee | 669 | #endif |
a67d2b2e | 670 | #if SQUID_SNMP |
62e76326 | 671 | |
5667a628 | 672 | snmpConnectionOpen(); |
320e9f36 | 673 | #endif |
0b0cfcf2 | 674 | |
5667a628 AR |
675 | clientdbInit(); |
676 | icmpEngine.Open(); | |
677 | netdbInit(); | |
678 | asnInit(); | |
679 | ACL::Initialize(); | |
680 | peerSelectInit(); | |
681 | ||
682 | carpInit(); | |
2f1431ea | 683 | #if USE_AUTH |
5667a628 | 684 | peerUserHashInit(); |
2f1431ea | 685 | #endif |
5667a628 | 686 | peerSourceHashInit(); |
7de94c8c | 687 | } |
5f3f8d0e | 688 | } |
689 | ||
d71e4674 | 690 | static void |
9b7292ce | 691 | serverConnectionsClose(void) |
692 | { | |
0a5a8601 | 693 | assert(shutting_down || reconfiguring); |
7de94c8c AR |
694 | |
695 | if (IamPrimaryProcess()) { | |
696 | #if USE_WCCP | |
697 | ||
5667a628 | 698 | wccpConnectionClose(); |
7de94c8c AR |
699 | #endif |
700 | #if USE_WCCPv2 | |
701 | ||
5667a628 | 702 | wccp2ConnectionClose(); |
7de94c8c AR |
703 | #endif |
704 | } | |
095ec2b1 | 705 | if (IamWorkerProcess()) { |
5667a628 AR |
706 | clientHttpConnectionsClose(); |
707 | icpConnectionShutdown(); | |
72549e05 | 708 | #if USE_HTCP |
62e76326 | 709 | |
5667a628 | 710 | htcpSocketShutdown(); |
72549e05 | 711 | #endif |
62e76326 | 712 | |
5667a628 | 713 | icmpEngine.Close(); |
a67d2b2e | 714 | #if SQUID_SNMP |
62e76326 | 715 | |
5667a628 | 716 | snmpConnectionShutdown(); |
320e9f36 | 717 | #endif |
62e76326 | 718 | |
5667a628 | 719 | asnFreeMemory(); |
7de94c8c | 720 | } |
5f3f8d0e | 721 | } |
722 | ||
b8d8561b | 723 | static void |
d71e4674 | 724 | mainReconfigureStart(void) |
9b7292ce | 725 | { |
bf8fe701 | 726 | debugs(1, 1, "Reconfiguring Squid Cache (version " << version_string << ")..."); |
5cd39a10 | 727 | reconfiguring = 1; |
d71e4674 AR |
728 | |
729 | // Initiate asynchronous closing sequence | |
15df8349 | 730 | serverConnectionsClose(); |
17e6c0a1 | 731 | icpConnectionClose(); |
72549e05 | 732 | #if USE_HTCP |
62e76326 | 733 | |
72549e05 | 734 | htcpSocketClose(); |
735 | #endif | |
59ad6d31 | 736 | #if SQUID_SNMP |
62e76326 | 737 | |
17e6c0a1 | 738 | snmpConnectionClose(); |
320e9f36 | 739 | #endif |
3c573763 | 740 | #if USE_DNSSERVERS |
62e76326 | 741 | |
74addf6c | 742 | dnsShutdown(); |
3c573763 | 743 | #else |
62e76326 | 744 | |
7b724b86 | 745 | idnsShutdown(); |
eb824054 | 746 | #endif |
95d2589c CT |
747 | #if USE_SSL_CRTD |
748 | Ssl::Helper::GetInstance()->Shutdown(); | |
749 | #endif | |
750 | #if USE_SSL | |
751 | Ssl::TheGlobalContextStorage.reconfigureStart(); | |
752 | #endif | |
74addf6c | 753 | redirectShutdown(); |
2f1431ea | 754 | #if USE_AUTH |
0bcb6908 | 755 | authenticateReset(); |
2f1431ea | 756 | #endif |
d9572179 | 757 | externalAclShutdown(); |
2db68ce5 | 758 | storeDirCloseSwapLogs(); |
2e923080 | 759 | storeLogClose(); |
760 | accessLogClose(); | |
3ff65596 AR |
761 | #if ICAP_CLIENT |
762 | icapLogClose(); | |
763 | #endif | |
d71e4674 AR |
764 | |
765 | eventAdd("mainReconfigureFinish", &mainReconfigureFinish, NULL, 0, 1, | |
26ac0430 | 766 | false); |
d71e4674 AR |
767 | } |
768 | ||
769 | static void | |
26ac0430 AJ |
770 | mainReconfigureFinish(void *) |
771 | { | |
d71e4674 AR |
772 | debugs(1, 3, "finishing reconfiguring"); |
773 | ||
c68e9c6b | 774 | errorClean(); |
3aa4adbc | 775 | enter_suid(); /* root to read config file */ |
936b23cd AJ |
776 | |
777 | // we may have disabled the need for PURGE | |
e1381638 | 778 | if (Config2.onoff.enable_purge) |
936b23cd AJ |
779 | Config2.onoff.enable_purge = 2; |
780 | ||
18631119 | 781 | // parse the config returns a count of errors encountered. |
13aeac35 | 782 | const int oldWorkers = Config.workers; |
f1eaa254 | 783 | |
18631119 AJ |
784 | if ( parseConfigFile(ConfigFile) != 0) { |
785 | // for now any errors are a fatal condition... | |
786 | self_destruct(); | |
787 | } | |
13aeac35 AR |
788 | if (oldWorkers != Config.workers) { |
789 | debugs(1, DBG_CRITICAL, "WARNING: Changing 'workers' (from " << | |
5667a628 AR |
790 | oldWorkers << " to " << Config.workers << |
791 | ") is not supported and ignored"); | |
13aeac35 | 792 | Config.workers = oldWorkers; |
a2c48c98 | 793 | } |
936b23cd | 794 | |
96c2bb61 AR |
795 | if (IamPrimaryProcess()) |
796 | CpuAffinityCheck(); | |
797 | CpuAffinityReconfigure(); | |
798 | ||
c642c141 | 799 | setUmask(Config.umask); |
97244680 | 800 | Mem::Report(); |
3aa4adbc | 801 | setEffectiveUser(); |
62493678 | 802 | _db_init(Debug::cache_log, Debug::debugOptions); |
429fdbec | 803 | ipcache_restart(); /* clear stuck entries */ |
804 | fqdncache_restart(); /* sigh, fqdncache too */ | |
0e70aa1e | 805 | parseEtcHosts(); |
53ad48e6 | 806 | errorInitialize(); /* reload error pages */ |
2e923080 | 807 | accessLogInit(); |
76fc7e57 AJ |
808 | |
809 | #if USE_LOADABLE_MODULES | |
810 | LoadableModulesConfigure(Config.loadable_module_names); | |
811 | #endif | |
812 | ||
813 | #if USE_ADAPTATION | |
814 | bool enableAdaptation = false; | |
815 | #if ICAP_CLIENT | |
816 | Adaptation::Icap::TheConfig.finalize(); | |
817 | enableAdaptation = Adaptation::Icap::TheConfig.onoff || enableAdaptation; | |
818 | #endif | |
819 | #if USE_ECAP | |
820 | Adaptation::Ecap::TheConfig.finalize(); // must be after we load modules | |
821 | enableAdaptation = Adaptation::Ecap::TheConfig.onoff || enableAdaptation; | |
822 | #endif | |
823 | Adaptation::Config::Finalize(enableAdaptation); | |
824 | #endif | |
d090e020 | 825 | |
3ff65596 AR |
826 | #if ICAP_CLIENT |
827 | icapLogOpen(); | |
828 | #endif | |
2e923080 | 829 | storeLogOpen(); |
3c573763 | 830 | #if USE_DNSSERVERS |
62e76326 | 831 | |
74addf6c | 832 | dnsInit(); |
3c573763 | 833 | #else |
62e76326 | 834 | |
7b724b86 | 835 | idnsInit(); |
eb824054 | 836 | #endif |
95d2589c CT |
837 | #if USE_SSL_CRTD |
838 | Ssl::Helper::GetInstance()->Init(); | |
839 | #endif | |
62e76326 | 840 | |
74addf6c | 841 | redirectInit(); |
2f1431ea | 842 | #if USE_AUTH |
5817ee13 | 843 | authenticateInit(&Auth::TheConfig); |
2f1431ea | 844 | #endif |
d9572179 | 845 | externalAclInit(); |
7de94c8c AR |
846 | |
847 | if (IamPrimaryProcess()) { | |
1f38f50a | 848 | #if USE_WCCP |
62e76326 | 849 | |
5667a628 | 850 | wccpInit(); |
1f38f50a | 851 | #endif |
0b0cfcf2 | 852 | #if USE_WCCPv2 |
853 | ||
5667a628 | 854 | wccp2Init(); |
0b0cfcf2 | 855 | #endif |
7de94c8c | 856 | } |
62e76326 | 857 | |
0ffd22bc | 858 | serverConnectionsOpen(); |
9c2e9b50 | 859 | |
3ee2b4f8 | 860 | neighbors_init(); |
9c2e9b50 | 861 | |
2db68ce5 | 862 | storeDirOpenSwapLogs(); |
9c2e9b50 | 863 | |
9c021a38 | 864 | mimeInit(Config.mimeTablePathname); |
9c2e9b50 | 865 | |
9a0a18de | 866 | #if USE_DELAY_POOLS |
b4cd430a CT |
867 | Config.ClientDelay.finalize(); |
868 | #endif | |
869 | ||
926375e6 | 870 | if (Config.onoff.announce) { |
871 | if (!eventFind(start_announce, NULL)) | |
872 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
873 | } else { | |
874 | if (eventFind(start_announce, NULL)) | |
875 | eventDelete(start_announce, NULL); | |
876 | } | |
877 | ||
b8890359 | 878 | writePidFile(); /* write PID file */ |
9c2e9b50 | 879 | |
bf8fe701 | 880 | debugs(1, 1, "Ready to serve requests."); |
9c2e9b50 | 881 | |
5cd39a10 | 882 | reconfiguring = 0; |
883 | } | |
884 | ||
885 | static void | |
9b7292ce | 886 | mainRotate(void) |
887 | { | |
cc192b50 | 888 | icmpEngine.Close(); |
3c573763 | 889 | #if USE_DNSSERVERS |
e40aa8da | 890 | dnsShutdown(); |
3c573763 | 891 | #endif |
e40aa8da | 892 | redirectShutdown(); |
2f1431ea | 893 | #if USE_AUTH |
0bcb6908 | 894 | authenticateRotate(); |
2f1431ea | 895 | #endif |
d9572179 | 896 | externalAclShutdown(); |
0a6dd8fb | 897 | |
5cd39a10 | 898 | _db_rotate_log(); /* cache.log */ |
899 | storeDirWriteCleanLogs(1); | |
900 | storeLogRotate(); /* store.log */ | |
901 | accessLogRotate(); /* access.log */ | |
3ff65596 AR |
902 | #if ICAP_CLIENT |
903 | icapLogRotate(); /*icap.log*/ | |
904 | #endif | |
cc192b50 | 905 | icmpEngine.Open(); |
3c573763 | 906 | #if USE_DNSSERVERS |
e40aa8da | 907 | dnsInit(); |
3c573763 | 908 | #endif |
e40aa8da | 909 | redirectInit(); |
2f1431ea | 910 | #if USE_AUTH |
5817ee13 | 911 | authenticateInit(&Auth::TheConfig); |
2f1431ea | 912 | #endif |
d9572179 | 913 | externalAclInit(); |
5f3f8d0e | 914 | } |
915 | ||
067bea91 | 916 | static void |
9b7292ce | 917 | setEffectiveUser(void) |
918 | { | |
fc68f6b1 | 919 | keepCapabilities(); |
85407535 | 920 | leave_suid(); /* Run as non privilegied user */ |
cd377065 | 921 | #ifdef _SQUID_OS2_ |
62e76326 | 922 | |
cd377065 | 923 | return; |
924 | #endif | |
62e76326 | 925 | |
85407535 | 926 | if (geteuid() == 0) { |
bf8fe701 | 927 | debugs(0, 0, "Squid is not safe to run as root! If you must"); |
928 | debugs(0, 0, "start Squid as root, then you must configure"); | |
929 | debugs(0, 0, "it to run as a non-priveledged user with the"); | |
930 | debugs(0, 0, "'cache_effective_user' option in the config file."); | |
62e76326 | 931 | fatal("Don't run Squid as root, set 'cache_effective_user'!"); |
85407535 | 932 | } |
933 | } | |
934 | ||
b6a2f15e | 935 | static void |
9b7292ce | 936 | mainSetCwd(void) |
937 | { | |
4a504376 | 938 | char pathbuf[MAXPATHLEN]; |
62e76326 | 939 | |
b6a2f15e | 940 | if (Config.coredump_dir) { |
62e76326 | 941 | if (0 == strcmp("none", Config.coredump_dir)) { |
942 | (void) 0; | |
943 | } else if (chdir(Config.coredump_dir) == 0) { | |
bf8fe701 | 944 | debugs(0, 1, "Set Current Directory to " << Config.coredump_dir); |
62e76326 | 945 | return; |
946 | } else { | |
bf8fe701 | 947 | debugs(50, 0, "chdir: " << Config.coredump_dir << ": " << xstrerror()); |
62e76326 | 948 | } |
b6a2f15e | 949 | } |
62e76326 | 950 | |
02e8115e | 951 | /* If we don't have coredump_dir or couldn't cd there, report current dir */ |
4a504376 | 952 | if (getcwd(pathbuf, MAXPATHLEN)) { |
bf8fe701 | 953 | debugs(0, 1, "Current Directory is " << pathbuf); |
4a504376 | 954 | } else { |
bf8fe701 | 955 | debugs(50, 0, "WARNING: Can't find current directory, getcwd: " << xstrerror()); |
4a504376 | 956 | } |
b6a2f15e | 957 | } |
958 | ||
b8d8561b | 959 | static void |
9b7292ce | 960 | mainInitialize(void) |
961 | { | |
efd900cb | 962 | /* chroot if configured to run inside chroot */ |
62e76326 | 963 | |
64b0a10d | 964 | if (Config.chroot_dir && (chroot(Config.chroot_dir) != 0 || chdir("/") != 0)) { |
62e76326 | 965 | fatal("failed to chroot"); |
efd900cb | 966 | } |
62e76326 | 967 | |
1758c627 | 968 | if (opt_catch_signals) { |
62e76326 | 969 | squid_signal(SIGSEGV, death, SA_NODEFER | SA_RESETHAND); |
970 | squid_signal(SIGBUS, death, SA_NODEFER | SA_RESETHAND); | |
44f99671 | 971 | } |
62e76326 | 972 | |
30a4f2a8 | 973 | squid_signal(SIGPIPE, SIG_IGN, SA_RESTART); |
974 | squid_signal(SIGCHLD, sig_child, SA_NODEFER | SA_RESTART); | |
44f99671 | 975 | |
85407535 | 976 | setEffectiveUser(); |
62e76326 | 977 | |
30a4f2a8 | 978 | if (icpPortNumOverride != 1) |
62e76326 | 979 | Config.Port.icp = (u_short) icpPortNumOverride; |
30a4f2a8 | 980 | |
62493678 | 981 | _db_init(Debug::cache_log, Debug::debugOptions); |
62e76326 | 982 | |
62493678 | 983 | fd_open(fileno(debug_log), FD_LOG, Debug::cache_log); |
62e76326 | 984 | |
71a17702 | 985 | #if MEM_GEN_TRACE |
62e76326 | 986 | |
71a17702 | 987 | log_trace_init("/tmp/squid.alloc"); |
62e76326 | 988 | |
71a17702 | 989 | #endif |
62e76326 | 990 | |
bf8fe701 | 991 | debugs(1, 0, "Starting Squid Cache version " << version_string << " for " << CONFIG_HOST_TYPE << "..."); |
62e76326 | 992 | |
be266cb2 | 993 | #if _SQUID_WINDOWS_ |
b293c4d8 | 994 | if (WIN32_run_mode == _WIN_SQUID_RUN_MODE_SERVICE) { |
bf8fe701 | 995 | debugs(1, 0, "Running as " << WIN32_Service_name << " Windows System Service on " << WIN32_OS_string); |
996 | debugs(1, 0, "Service command line is: " << WIN32_Service_Command_Line); | |
b293c4d8 | 997 | } else |
bf8fe701 | 998 | debugs(1, 0, "Running on " << WIN32_OS_string); |
b293c4d8 | 999 | #endif |
1000 | ||
36584579 | 1001 | debugs(1, 1, "Process ID " << getpid()); |
095ec2b1 AR |
1002 | |
1003 | debugs(1, 1, "Process Roles:" << ProcessRoles()); | |
1004 | ||
f3f0f563 | 1005 | setSystemLimits(); |
bf8fe701 | 1006 | debugs(1, 1, "With " << Squid_MaxFD << " file descriptors available"); |
5f3f8d0e | 1007 | |
6c1962dd | 1008 | #ifdef _SQUID_MSWIN_ |
1009 | ||
bf8fe701 | 1010 | debugs(1, 1, "With " << _getmaxstdio() << " CRT stdio descriptors available"); |
6c1962dd | 1011 | |
1012 | if (WIN32_Socks_initialized) | |
bf8fe701 | 1013 | debugs(1, 1, "Windows sockets initialized"); |
6c1962dd | 1014 | |
babd1fd5 | 1015 | if (WIN32_OS_version > _WIN_OS_WINNT) { |
26ac0430 | 1016 | WIN32_IpAddrChangeMonitorInit(); |
babd1fd5 | 1017 | } |
1018 | ||
6c1962dd | 1019 | #endif |
1020 | ||
9f75c559 | 1021 | if (!configured_once) |
62e76326 | 1022 | disk_init(); /* disk_init must go before ipcache_init() */ |
1023 | ||
5f3f8d0e | 1024 | ipcache_init(); |
62e76326 | 1025 | |
f88bb09c | 1026 | fqdncache_init(); |
62e76326 | 1027 | |
0e70aa1e | 1028 | parseEtcHosts(); |
62e76326 | 1029 | |
3c573763 | 1030 | #if USE_DNSSERVERS |
62e76326 | 1031 | |
74addf6c | 1032 | dnsInit(); |
62e76326 | 1033 | |
3c573763 | 1034 | #else |
62e76326 | 1035 | |
7b724b86 | 1036 | idnsInit(); |
62e76326 | 1037 | |
eb824054 | 1038 | #endif |
62e76326 | 1039 | |
74addf6c | 1040 | redirectInit(); |
2f1431ea | 1041 | #if USE_AUTH |
5817ee13 | 1042 | authenticateInit(&Auth::TheConfig); |
2f1431ea | 1043 | #endif |
d9572179 | 1044 | externalAclInit(); |
62e76326 | 1045 | |
2ac76861 | 1046 | httpHeaderInitModule(); /* must go before any header processing (e.g. the one in errorInitialize) */ |
62e76326 | 1047 | |
2246b732 | 1048 | httpReplyInitModule(); /* must go before accepting replies */ |
62e76326 | 1049 | |
9b312a19 | 1050 | errorInitialize(); |
62e76326 | 1051 | |
7a2f978b | 1052 | accessLogInit(); |
62e76326 | 1053 | |
e1381638 | 1054 | #if ICAP_CLIENT |
3ff65596 AR |
1055 | icapLogOpen(); |
1056 | #endif | |
1057 | ||
3898f57f | 1058 | #if USE_IDENT |
4daaf3cb | 1059 | Ident::Init(); |
3898f57f | 1060 | #endif |
4daaf3cb | 1061 | |
59ad6d31 | 1062 | #if SQUID_SNMP |
62e76326 | 1063 | |
5e14bf6d | 1064 | snmpInit(); |
62e76326 | 1065 | |
5e14bf6d | 1066 | #endif |
30a4f2a8 | 1067 | #if MALLOC_DBG |
62e76326 | 1068 | |
5f3f8d0e | 1069 | malloc_debug(0, malloc_debug_level); |
62e76326 | 1070 | |
5f3f8d0e | 1071 | #endif |
1072 | ||
dbe4fd8e | 1073 | if (!configured_once) { |
a3d0a19d | 1074 | #if USE_UNLINKD |
62e76326 | 1075 | unlinkdInit(); |
1076 | #endif | |
1077 | ||
1078 | urlInitialize(); | |
62e76326 | 1079 | statInit(); |
1080 | storeInit(); | |
1081 | mainSetCwd(); | |
1082 | /* after this point we want to see the mallinfo() output */ | |
1083 | do_mallinfo = 1; | |
1084 | mimeInit(Config.mimeTablePathname); | |
62e76326 | 1085 | refreshInit(); |
9a0a18de | 1086 | #if USE_DELAY_POOLS |
62e76326 | 1087 | DelayPools::Init(); |
0d7e5d78 | 1088 | #endif |
62e76326 | 1089 | |
b6b6f466 | 1090 | FwdState::initModule(); |
62ee09ca | 1091 | /* register the modules in the cache manager menus */ |
62ee09ca | 1092 | |
a08f1b5a | 1093 | cbdataRegisterWithCacheManager(); |
62ee09ca | 1094 | /* These use separate calls so that the comm loops can eventually |
1095 | * coexist. | |
1096 | */ | |
62ee09ca | 1097 | |
15b3c0d7 | 1098 | eventInit(); |
610ee341 | 1099 | |
26ac0430 | 1100 | // TODO: pconn is a good candidate for new-style registration |
6852be71 | 1101 | // PconnModule::GetInstance()->registerWithCacheManager(); |
26ac0430 | 1102 | // moved to PconnModule::PconnModule() |
5f3f8d0e | 1103 | } |
62e76326 | 1104 | |
7de94c8c | 1105 | if (IamPrimaryProcess()) { |
1f38f50a | 1106 | #if USE_WCCP |
5667a628 | 1107 | wccpInit(); |
62e76326 | 1108 | |
0b0cfcf2 | 1109 | #endif |
1110 | #if USE_WCCPv2 | |
1111 | ||
5667a628 | 1112 | wccp2Init(); |
0b0cfcf2 | 1113 | |
1f38f50a | 1114 | #endif |
7de94c8c | 1115 | } |
62e76326 | 1116 | |
2285407f | 1117 | serverConnectionsOpen(); |
62e76326 | 1118 | |
3ee2b4f8 | 1119 | neighbors_init(); |
fc68f6b1 | 1120 | |
5f5e883f | 1121 | // neighborsRegisterWithCacheManager(); //moved to neighbors_init() |
62e76326 | 1122 | |
efd900cb | 1123 | if (Config.chroot_dir) |
62e76326 | 1124 | no_suid(); |
1125 | ||
dbe4fd8e | 1126 | if (!configured_once) |
62e76326 | 1127 | writePidFile(); /* write PID file */ |
0a5b9b32 | 1128 | |
7e7a0442 | 1129 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 1130 | |
e3175d1f | 1131 | squid_signal(SIGQUIT, rotate_logs, SA_RESTART); |
62e76326 | 1132 | |
e3175d1f | 1133 | squid_signal(SIGTRAP, sigusr2_handle, SA_RESTART); |
62e76326 | 1134 | |
e3175d1f | 1135 | #else |
62e76326 | 1136 | |
30a4f2a8 | 1137 | squid_signal(SIGUSR1, rotate_logs, SA_RESTART); |
62e76326 | 1138 | |
30a4f2a8 | 1139 | squid_signal(SIGUSR2, sigusr2_handle, SA_RESTART); |
62e76326 | 1140 | |
9fc0b4b8 | 1141 | #endif |
62e76326 | 1142 | |
30a4f2a8 | 1143 | squid_signal(SIGHUP, reconfigure, SA_RESTART); |
62e76326 | 1144 | |
30a4f2a8 | 1145 | squid_signal(SIGTERM, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1146 | |
30a4f2a8 | 1147 | squid_signal(SIGINT, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1148 | |
ae1feb30 | 1149 | #ifdef SIGTTIN |
1150 | ||
1151 | squid_signal(SIGTTIN, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); | |
1152 | ||
1153 | #endif | |
1154 | ||
58a39dc9 | 1155 | memCheckInit(); |
62e76326 | 1156 | |
57afc994 AR |
1157 | #if USE_LOADABLE_MODULES |
1158 | LoadableModulesConfigure(Config.loadable_module_names); | |
1159 | #endif | |
1160 | ||
8f361c50 AR |
1161 | #if USE_ADAPTATION |
1162 | bool enableAdaptation = false; | |
1163 | ||
1164 | // We can remove this dependency on specific adaptation mechanisms | |
1165 | // if we create a generic Registry of such mechanisms. Should we? | |
b958cb0f | 1166 | #if ICAP_CLIENT |
26cc52cb AR |
1167 | Adaptation::Icap::TheConfig.finalize(); |
1168 | enableAdaptation = Adaptation::Icap::TheConfig.onoff || enableAdaptation; | |
6e5db507 AR |
1169 | #endif |
1170 | #if USE_ECAP | |
574b508c AR |
1171 | Adaptation::Ecap::TheConfig.finalize(); // must be after we load modules |
1172 | enableAdaptation = Adaptation::Ecap::TheConfig.onoff || enableAdaptation; | |
b958cb0f | 1173 | #endif |
8f361c50 AR |
1174 | // must be the last adaptation-related finalize |
1175 | Adaptation::Config::Finalize(enableAdaptation); | |
b958cb0f AR |
1176 | #endif |
1177 | ||
79039294 AR |
1178 | #if USE_SQUID_ESI |
1179 | Esi::Init(); | |
1180 | #endif | |
b958cb0f | 1181 | |
9a0a18de | 1182 | #if USE_DELAY_POOLS |
b4cd430a CT |
1183 | Config.ClientDelay.finalize(); |
1184 | #endif | |
1185 | ||
bf8fe701 | 1186 | debugs(1, 1, "Ready to serve requests."); |
62e76326 | 1187 | |
dbe4fd8e | 1188 | if (!configured_once) { |
c8f4eac4 | 1189 | eventAdd("storeMaintain", Store::Maintain, NULL, 1.0, 1); |
62e76326 | 1190 | |
1191 | if (Config.onoff.announce) | |
1192 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
1193 | ||
1194 | eventAdd("ipcache_purgelru", ipcache_purgelru, NULL, 10.0, 1); | |
1195 | ||
1196 | eventAdd("fqdncache_purgelru", fqdncache_purgelru, NULL, 15.0, 1); | |
1197 | ||
88bfe092 | 1198 | #if USE_XPROF_STATS |
62e76326 | 1199 | |
1200 | eventAdd("cpuProfiling", xprof_event, NULL, 1.0, 1); | |
1201 | ||
88bfe092 | 1202 | #endif |
62e76326 | 1203 | |
1204 | eventAdd("memPoolCleanIdlePools", Mem::CleanIdlePools, NULL, 15.0, 1); | |
4d7add01 | 1205 | } |
62e76326 | 1206 | |
dbe4fd8e | 1207 | configured_once = 1; |
4d64d74a | 1208 | } |
1209 | ||
c842329d | 1210 | /// unsafe main routine -- may throw |
f3f3e961 | 1211 | int SquidMain(int argc, char **argv); |
c842329d | 1212 | /// unsafe main routine wrapper to catch exceptions |
6e5db507 AR |
1213 | static int SquidMainSafe(int argc, char **argv); |
1214 | ||
6c1962dd | 1215 | #if USE_WIN32_SERVICE |
1216 | /* When USE_WIN32_SERVICE is defined, the main function is placed in win32.cc */ | |
1217 | extern "C" void WINAPI | |
e1381638 | 1218 | SquidWinSvcMain(int argc, char **argv) |
18631119 AJ |
1219 | { |
1220 | SquidMainSafe(argc, argv); | |
1221 | } | |
6c1962dd | 1222 | #else |
b8d8561b | 1223 | int |
1224 | main(int argc, char **argv) | |
6e5db507 | 1225 | { |
18631119 | 1226 | return SquidMainSafe(argc, argv); |
6e5db507 | 1227 | } |
18631119 | 1228 | #endif |
6e5db507 AR |
1229 | |
1230 | static int | |
1231 | SquidMainSafe(int argc, char **argv) | |
1232 | { | |
1233 | try { | |
1234 | return SquidMain(argc, argv); | |
26ac0430 | 1235 | } catch (const std::exception &e) { |
f5f9e44c | 1236 | debugs(0,0, "dying from an unhandled exception: " << e.what()); |
26ac0430 AJ |
1237 | throw; |
1238 | } catch (...) { | |
f5f9e44c | 1239 | debugs(0,0, "dying from an unhandled exception."); |
26ac0430 AJ |
1240 | throw; |
1241 | } | |
1242 | return -1; // not reached | |
6e5db507 AR |
1243 | } |
1244 | ||
d4a3e179 AR |
1245 | /// computes name and ID for the current kid process |
1246 | static void | |
1247 | ConfigureCurrentKid(const char *processName) | |
1248 | { | |
5667a628 | 1249 | // kids are marked with parenthesis around their process names |
d4a3e179 AR |
1250 | if (processName && processName[0] == '(') { |
1251 | if (const char *idStart = strrchr(processName, '-')) { | |
1252 | KidIdentifier = atoi(idStart + 1); | |
9de6c973 AR |
1253 | const size_t nameLen = idStart - (processName + 1); |
1254 | assert(nameLen < sizeof(TheKidName)); | |
1255 | xstrncpy(TheKidName, processName + 1, nameLen + 1); | |
095ec2b1 AR |
1256 | if (!strcmp(TheKidName, "squid-coord")) |
1257 | TheProcessKind = pkCoordinator; | |
1258 | else | |
1259 | if (!strcmp(TheKidName, "squid")) | |
1260 | TheProcessKind = pkWorker; | |
1261 | else | |
1262 | if (!strcmp(TheKidName, "squid-disk")) | |
1263 | TheProcessKind = pkDisker; | |
1264 | else | |
1265 | TheProcessKind = pkOther; // including coordinator | |
d4a3e179 | 1266 | } |
2664c457 | 1267 | } else { |
9de6c973 | 1268 | xstrncpy(TheKidName, APP_SHORTNAME, sizeof(TheKidName)); |
2664c457 | 1269 | KidIdentifier = 0; |
d4a3e179 | 1270 | } |
d4a3e179 AR |
1271 | } |
1272 | ||
f3f3e961 | 1273 | int |
6e5db507 | 1274 | SquidMain(int argc, char **argv) |
9b7292ce | 1275 | { |
d4a3e179 | 1276 | ConfigureCurrentKid(argv[0]); |
007d775d | 1277 | |
be266cb2 | 1278 | #if _SQUID_WINDOWS_ |
a0aa9e74 | 1279 | int WIN32_init_err; |
1280 | #endif | |
4d64d74a | 1281 | |
a4ba1105 | 1282 | #if HAVE_SBRK |
62e76326 | 1283 | |
9b7292ce | 1284 | sbrk_start = sbrk(0); |
a4ba1105 | 1285 | #endif |
1286 | ||
fb6a61d1 | 1287 | Debug::parseOptions(NULL); |
9b7292ce | 1288 | debug_log = stderr; |
62e76326 | 1289 | |
b9269882 | 1290 | #if defined(SQUID_MAXFD_LIMIT) |
1291 | ||
1292 | if (SQUID_MAXFD_LIMIT < Squid_MaxFD) | |
1293 | Squid_MaxFD = SQUID_MAXFD_LIMIT; | |
1294 | ||
1295 | #endif | |
399e85ea | 1296 | |
be266cb2 | 1297 | #if _SQUID_WINDOWS_ |
a0aa9e74 | 1298 | if ((WIN32_init_err = WIN32_Subsystem_Init(&argc, &argv))) |
1299 | return WIN32_init_err; | |
0e6d05ef | 1300 | #endif |
1301 | ||
9b7292ce | 1302 | /* call mallopt() before anything else */ |
0b29fe44 | 1303 | #if HAVE_MALLOPT |
7328e889 | 1304 | #ifdef M_GRAIN |
9b7292ce | 1305 | /* Round up all sizes to a multiple of this */ |
1306 | mallopt(M_GRAIN, 16); | |
62e76326 | 1307 | |
7328e889 | 1308 | #endif |
1309 | #ifdef M_MXFAST | |
9b7292ce | 1310 | /* biggest size that is considered a small block */ |
1311 | mallopt(M_MXFAST, 256); | |
62e76326 | 1312 | |
7328e889 | 1313 | #endif |
1314 | #ifdef M_NBLKS | |
9b7292ce | 1315 | /* allocate this many small blocks at once */ |
1316 | mallopt(M_NLBLKS, 32); | |
62e76326 | 1317 | |
7328e889 | 1318 | #endif |
1319 | #endif /* HAVE_MALLOPT */ | |
1320 | ||
9b7292ce | 1321 | squid_srandom(time(NULL)); |
4d64d74a | 1322 | |
9b7292ce | 1323 | getCurrentTime(); |
62e76326 | 1324 | |
9b7292ce | 1325 | squid_start = current_time; |
62e76326 | 1326 | |
9b7292ce | 1327 | failure_notify = fatal_dump; |
4d64d74a | 1328 | |
6c1962dd | 1329 | #if USE_WIN32_SERVICE |
1330 | ||
9b7292ce | 1331 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1332 | |
1333 | #endif | |
1334 | ||
9b7292ce | 1335 | mainParseOptions(argc, argv); |
4d64d74a | 1336 | |
9aae6be3 | 1337 | if (opt_parse_cfg_only) { |
26ac0430 | 1338 | Debug::parseOptions("ALL,1"); |
9aae6be3 | 1339 | } |
1340 | ||
6c1962dd | 1341 | #if USE_WIN32_SERVICE |
1342 | ||
26ac0430 | 1343 | if (opt_install_service) { |
9b7292ce | 1344 | WIN32_InstallService(); |
a0aa9e74 | 1345 | return 0; |
9b7292ce | 1346 | } |
6c1962dd | 1347 | |
26ac0430 | 1348 | if (opt_remove_service) { |
9b7292ce | 1349 | WIN32_RemoveService(); |
a0aa9e74 | 1350 | return 0; |
9b7292ce | 1351 | } |
6c1962dd | 1352 | |
26ac0430 | 1353 | if (opt_command_line) { |
9b7292ce | 1354 | WIN32_SetServiceCommandLine(); |
a0aa9e74 | 1355 | return 0; |
9b7292ce | 1356 | } |
6c1962dd | 1357 | |
1358 | #endif | |
1359 | ||
9b7292ce | 1360 | /* parse configuration file |
1361 | * note: in "normal" case this used to be called from mainInitialize() */ | |
1362 | { | |
1363 | int parse_err; | |
62e76326 | 1364 | |
9b7292ce | 1365 | if (!ConfigFile) |
1366 | ConfigFile = xstrdup(DefaultConfigFile); | |
62e76326 | 1367 | |
9b7292ce | 1368 | assert(!configured_once); |
62e76326 | 1369 | |
9b7292ce | 1370 | Mem::Init(); |
62e76326 | 1371 | |
9b7292ce | 1372 | storeFsInit(); /* required for config parsing */ |
62e76326 | 1373 | |
7b5b7ba8 | 1374 | /* TODO: call the FS::Clean() in shutdown to do Fs cleanups */ |
af6a12ee | 1375 | Fs::Init(); |
7b5b7ba8 | 1376 | |
b9ae18aa | 1377 | /* May not be needed for parsing, have not audited for such */ |
1378 | DiskIOModule::SetupAllModules(); | |
1379 | ||
59b2d47f | 1380 | /* Shouldn't be needed for config parsing, but have not audited for such */ |
1381 | StoreFileSystem::SetupAllFs(); | |
1382 | ||
c8f4eac4 | 1383 | /* we may want the parsing process to set this up in the future */ |
1384 | Store::Root(new StoreController); | |
2f1431ea | 1385 | #if USE_AUTH |
ccd8a22a | 1386 | Auth::Init(); /* required for config parsing */ |
2f1431ea | 1387 | #endif |
055421ee AJ |
1388 | Ip::ProbeTransport(); // determine IPv4 or IPv6 capabilities before parsing. |
1389 | ||
dd9b1081 | 1390 | parse_err = parseConfigFile(ConfigFile); |
62e76326 | 1391 | |
97244680 | 1392 | Mem::Report(); |
26ac0430 | 1393 | |
18631119 | 1394 | if (opt_parse_cfg_only || parse_err > 0) |
9b7292ce | 1395 | return parse_err; |
9b7292ce | 1396 | } |
c642c141 | 1397 | setUmask(Config.umask); |
9b7292ce | 1398 | if (-1 == opt_send_signal) |
1399 | if (checkRunningPid()) | |
205d7c3b | 1400 | exit(0); |
e13ee7ad | 1401 | |
9bc73deb | 1402 | #if TEST_ACCESS |
62e76326 | 1403 | |
95564b0d | 1404 | comm_init(); |
62e76326 | 1405 | |
9b7292ce | 1406 | mainInitialize(); |
62e76326 | 1407 | |
9b7292ce | 1408 | test_access(); |
62e76326 | 1409 | |
9b7292ce | 1410 | return 0; |
62e76326 | 1411 | |
9bc73deb | 1412 | #endif |
1413 | ||
9b7292ce | 1414 | /* send signal to running copy and exit */ |
26ac0430 | 1415 | if (opt_send_signal != -1) { |
9b7292ce | 1416 | /* chroot if configured to run inside chroot */ |
62e76326 | 1417 | |
a572d8be | 1418 | if (Config.chroot_dir) { |
1419 | if (chroot(Config.chroot_dir)) | |
1420 | fatal("failed to chroot"); | |
1421 | ||
1422 | no_suid(); | |
1423 | } else { | |
1424 | leave_suid(); | |
9b7292ce | 1425 | } |
62e76326 | 1426 | |
9b7292ce | 1427 | sendSignal(); |
1428 | /* NOTREACHED */ | |
1429 | } | |
62e76326 | 1430 | |
6d57128b | 1431 | debugs(1,2, HERE << "Doing post-config initialization\n"); |
520e0073 | 1432 | leave_suid(); |
6d57128b | 1433 | ActivateRegistered(rrAfterConfig); |
520e0073 | 1434 | enter_suid(); |
9487bae9 | 1435 | |
2ae5c85f AJ |
1436 | if (!opt_no_daemon && Config.workers > 0) |
1437 | watch_child(argv); | |
1438 | ||
26ac0430 | 1439 | if (opt_create_swap_dirs) { |
9b7292ce | 1440 | /* chroot if configured to run inside chroot */ |
0e657244 | 1441 | |
9b7292ce | 1442 | if (Config.chroot_dir && chroot(Config.chroot_dir)) { |
1443 | fatal("failed to chroot"); | |
1444 | } | |
62e76326 | 1445 | |
9b7292ce | 1446 | setEffectiveUser(); |
bf8fe701 | 1447 | debugs(0, 0, "Creating Swap Directories"); |
c8f4eac4 | 1448 | Store::Root().create(); |
6c1962dd | 1449 | |
9b7292ce | 1450 | return 0; |
9b7292ce | 1451 | } |
62e76326 | 1452 | |
96c2bb61 AR |
1453 | if (IamPrimaryProcess()) |
1454 | CpuAffinityCheck(); | |
1455 | CpuAffinityInit(); | |
1456 | ||
95564b0d | 1457 | setMaxFD(); |
1458 | ||
1459 | /* init comm module */ | |
1460 | comm_init(); | |
62e76326 | 1461 | |
26ac0430 | 1462 | if (opt_no_daemon) { |
9b7292ce | 1463 | /* we have to init fdstat here. */ |
1464 | fd_open(0, FD_LOG, "stdin"); | |
1465 | fd_open(1, FD_LOG, "stdout"); | |
1466 | fd_open(2, FD_LOG, "stderr"); | |
1467 | } | |
62e76326 | 1468 | |
6c1962dd | 1469 | #if USE_WIN32_SERVICE |
1470 | ||
9b7292ce | 1471 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1472 | |
1473 | #endif | |
1474 | ||
9b7292ce | 1475 | mainInitialize(); |
4d64d74a | 1476 | |
6c1962dd | 1477 | #if USE_WIN32_SERVICE |
1478 | ||
9b7292ce | 1479 | WIN32_svcstatusupdate(SERVICE_RUNNING, 0); |
6c1962dd | 1480 | |
1481 | #endif | |
1482 | ||
9b7292ce | 1483 | /* main loop */ |
a553a5a3 | 1484 | EventLoop mainLoop; |
62e76326 | 1485 | |
9688b0ae | 1486 | SignalEngine signalEngine(mainLoop); |
6c1962dd | 1487 | |
9688b0ae | 1488 | mainLoop.registerEngine(&signalEngine); |
62e76326 | 1489 | |
8ff3fa2e | 1490 | /* TODO: stop requiring the singleton here */ |
1491 | mainLoop.registerEngine(EventScheduler::GetInstance()); | |
62e76326 | 1492 | |
8ff3fa2e | 1493 | StoreRootEngine store_engine; |
615f9581 | 1494 | |
8ff3fa2e | 1495 | mainLoop.registerEngine(&store_engine); |
a774fd3f | 1496 | |
8ff3fa2e | 1497 | CommSelectEngine comm_engine; |
1498 | ||
8ff3fa2e | 1499 | mainLoop.registerEngine(&comm_engine); |
1500 | ||
bef81ea5 | 1501 | mainLoop.setPrimaryEngine(&comm_engine); |
1502 | ||
8ff3fa2e | 1503 | /* use the standard time service */ |
1504 | TimeEngine time_engine; | |
1505 | ||
1506 | mainLoop.setTimeService(&time_engine); | |
1507 | ||
7de94c8c | 1508 | if (IamCoordinatorProcess()) |
4299f876 | 1509 | AsyncJob::Start(Ipc::Coordinator::Instance()); |
095ec2b1 | 1510 | else if (UsingSmp() && (IamWorkerProcess() || IamDiskProcess())) |
4299f876 | 1511 | AsyncJob::Start(new Ipc::Strand); |
10cefb7b | 1512 | |
48d54e4d AJ |
1513 | /* at this point we are finished the synchronous startup. */ |
1514 | starting_up = 0; | |
1515 | ||
8ff3fa2e | 1516 | mainLoop.run(); |
1517 | ||
1518 | if (mainLoop.errcount == 10) | |
1519 | fatal_dump("Event loop exited with failure."); | |
1520 | ||
1521 | /* shutdown squid now */ | |
1522 | SquidShutdown(); | |
62e76326 | 1523 | |
9b7292ce | 1524 | /* NOTREACHED */ |
9b7292ce | 1525 | return 0; |
090089c4 | 1526 | } |
7690e8eb | 1527 | |
b8d8561b | 1528 | static void |
0673c0ba | 1529 | sendSignal(void) |
7690e8eb | 1530 | { |
ff8d0ea6 | 1531 | pid_t pid; |
fedac7e5 | 1532 | debug_log = stderr; |
258ac4d7 | 1533 | |
1534 | if (strcmp(Config.pidFilename, "none") == 0) { | |
bf8fe701 | 1535 | debugs(0, 1, "No pid_filename specified. Trusting you know what you are doing."); |
258ac4d7 | 1536 | } |
1537 | ||
fedac7e5 | 1538 | pid = readPidFile(); |
62e76326 | 1539 | |
fedac7e5 | 1540 | if (pid > 1) { |
6c1962dd | 1541 | #if USE_WIN32_SERVICE |
1542 | ||
1543 | if (opt_signal_service) { | |
1544 | WIN32_sendSignal(opt_send_signal); | |
1545 | exit(0); | |
1546 | } else | |
1547 | #ifdef _SQUID_MSWIN_ | |
1548 | { | |
7dbca7a4 | 1549 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
6c1962dd | 1550 | fprintf(stderr, "signal to Squid Service:\n"); |
1551 | fprintf(stderr, "missing -n command line switch.\n"); | |
1552 | exit(1); | |
1553 | } | |
1554 | ||
1555 | /* NOTREACHED */ | |
1556 | #endif | |
1557 | ||
1558 | #endif | |
1559 | ||
62e76326 | 1560 | if (kill(pid, opt_send_signal) && |
1561 | /* ignore permissions if just running check */ | |
1562 | !(opt_send_signal == 0 && errno == EPERM)) { | |
7dbca7a4 | 1563 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
62e76326 | 1564 | fprintf(stderr, "signal %d to process %d: %s\n", |
1565 | opt_send_signal, (int) pid, xstrerror()); | |
1566 | exit(1); | |
1567 | } | |
fedac7e5 | 1568 | } else { |
205d7c3b | 1569 | if (opt_send_signal != SIGTERM) { |
e08d498f | 1570 | fprintf(stderr, "%s: ERROR: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1571 | exit(1); |
1572 | } else { | |
e08d498f | 1573 | fprintf(stderr, "%s: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1574 | exit(0); |
1575 | } | |
7690e8eb | 1576 | } |
62e76326 | 1577 | |
fedac7e5 | 1578 | /* signal successfully sent */ |
1579 | exit(0); | |
1580 | } | |
f95b8144 | 1581 | |
a50bfe93 | 1582 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 1583 | /* |
1584 | * This function is run when Squid is in daemon mode, just | |
1585 | * before the parent forks and starts up the child process. | |
1586 | * It can be used for admin-specific tasks, such as notifying | |
1587 | * someone that Squid is (re)started. | |
1588 | */ | |
1589 | static void | |
1590 | mainStartScript(const char *prog) | |
1591 | { | |
ef364f64 | 1592 | char script[MAXPATHLEN]; |
e18d7fdc | 1593 | char *t; |
1594 | size_t sl = 0; | |
1595 | pid_t cpid; | |
1596 | pid_t rpid; | |
1597 | xstrncpy(script, prog, MAXPATHLEN); | |
62e76326 | 1598 | |
e18d7fdc | 1599 | if ((t = strrchr(script, '/'))) { |
62e76326 | 1600 | *(++t) = '\0'; |
1601 | sl = strlen(script); | |
e18d7fdc | 1602 | } |
62e76326 | 1603 | |
e18d7fdc | 1604 | xstrncpy(&script[sl], squid_start_script, MAXPATHLEN - sl); |
62e76326 | 1605 | |
e18d7fdc | 1606 | if ((cpid = fork()) == 0) { |
62e76326 | 1607 | /* child */ |
f75662c9 | 1608 | execl(script, squid_start_script, (char *)NULL); |
482aa790 | 1609 | _exit(-1); |
e18d7fdc | 1610 | } else { |
62e76326 | 1611 | do { |
e18d7fdc | 1612 | #ifdef _SQUID_NEXT_ |
62e76326 | 1613 | union wait status; |
007d775d | 1614 | rpid = wait4(cpid, &status, 0, NULL); |
e18d7fdc | 1615 | #else |
62e76326 | 1616 | |
1617 | int status; | |
007d775d | 1618 | rpid = waitpid(cpid, &status, 0); |
e18d7fdc | 1619 | #endif |
62e76326 | 1620 | |
1621 | } while (rpid != cpid); | |
e18d7fdc | 1622 | } |
1623 | } | |
1624 | ||
a50bfe93 | 1625 | #endif /* _SQUID_MSWIN_ */ |
1626 | ||
efd900cb | 1627 | static int |
1628 | checkRunningPid(void) | |
1629 | { | |
b81949b9 | 1630 | // master process must start alone, but its kids processes may co-exist |
7de94c8c | 1631 | if (!IamMasterProcess()) |
b81949b9 AR |
1632 | return 0; |
1633 | ||
efd900cb | 1634 | pid_t pid; |
e0077312 | 1635 | |
1636 | if (!debug_log) | |
1637 | debug_log = stderr; | |
1638 | ||
efd900cb | 1639 | pid = readPidFile(); |
62e76326 | 1640 | |
efd900cb | 1641 | if (pid < 2) |
62e76326 | 1642 | return 0; |
1643 | ||
efd900cb | 1644 | if (kill(pid, 0) < 0) |
62e76326 | 1645 | return 0; |
1646 | ||
cb7a4fcb | 1647 | debugs(0, 0, "Squid is already running! Process ID " << pid); |
62e76326 | 1648 | |
efd900cb | 1649 | return 1; |
1650 | } | |
1651 | ||
f95b8144 | 1652 | static void |
bbe199dc | 1653 | watch_child(char *argv[]) |
f95b8144 | 1654 | { |
a50bfe93 | 1655 | #ifndef _SQUID_MSWIN_ |
f95b8144 | 1656 | char *prog; |
f95b8144 | 1657 | #ifdef _SQUID_NEXT_ |
62e76326 | 1658 | |
f95b8144 | 1659 | union wait status; |
1660 | #else | |
62e76326 | 1661 | |
f95b8144 | 1662 | int status; |
1663 | #endif | |
62e76326 | 1664 | |
e3a3b845 | 1665 | pid_t pid; |
c99c5397 | 1666 | #ifdef TIOCNOTTY |
1667 | ||
54f742e7 | 1668 | int i; |
c99c5397 | 1669 | #endif |
1670 | ||
742724a4 | 1671 | int nullfd; |
62e76326 | 1672 | |
7de94c8c | 1673 | if (!IamMasterProcess()) |
62e76326 | 1674 | return; |
1675 | ||
7dbca7a4 | 1676 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1677 | |
54f742e7 | 1678 | if ((pid = fork()) < 0) |
62e76326 | 1679 | syslog(LOG_ALERT, "fork failed: %s", xstrerror()); |
54f742e7 | 1680 | else if (pid > 0) |
62e76326 | 1681 | exit(0); |
1682 | ||
54f742e7 | 1683 | if (setsid() < 0) |
62e76326 | 1684 | syslog(LOG_ALERT, "setsid failed: %s", xstrerror()); |
1685 | ||
efd900cb | 1686 | closelog(); |
62e76326 | 1687 | |
54f742e7 | 1688 | #ifdef TIOCNOTTY |
62e76326 | 1689 | |
c4aefe96 | 1690 | if ((i = open("/dev/tty", O_RDWR | O_TEXT)) >= 0) { |
62e76326 | 1691 | ioctl(i, TIOCNOTTY, NULL); |
1692 | close(i); | |
54f742e7 | 1693 | } |
62e76326 | 1694 | |
54f742e7 | 1695 | #endif |
b05490a8 | 1696 | |
7f6ffd15 | 1697 | /* |
1698 | * RBCOLLINS - if cygwin stackdumps when squid is run without | |
1699 | * -N, check the cygwin1.dll version, it needs to be AT LEAST | |
1700 | * 1.1.3. execvp had a bit overflow error in a loop.. | |
1701 | */ | |
742724a4 | 1702 | /* Connect stdio to /dev/null in daemon mode */ |
4da086c4 | 1703 | nullfd = open(_PATH_DEVNULL, O_RDWR | O_TEXT); |
62e76326 | 1704 | |
e4a1325e | 1705 | if (nullfd < 0) |
4da086c4 | 1706 | fatalf(_PATH_DEVNULL " %s\n", xstrerror()); |
e4a1325e | 1707 | |
742724a4 | 1708 | dup2(nullfd, 0); |
62e76326 | 1709 | |
62493678 | 1710 | if (Debug::log_stderr < 0) { |
62e76326 | 1711 | dup2(nullfd, 1); |
1712 | dup2(nullfd, 2); | |
742724a4 | 1713 | } |
62e76326 | 1714 | |
ca4b9ee6 DK |
1715 | // handle shutdown notifications from kids |
1716 | squid_signal(SIGUSR1, sig_shutdown, SA_RESTART); | |
1717 | ||
13aeac35 AR |
1718 | if (Config.workers > 128) { |
1719 | syslog(LOG_ALERT, "Suspiciously high workers value: %d", | |
5667a628 | 1720 | Config.workers); |
007d775d | 1721 | // but we keep going in hope that user knows best |
5667a628 | 1722 | } |
095ec2b1 AR |
1723 | TheKids.init(); |
1724 | ||
f1eaa254 | 1725 | syslog(LOG_NOTICE, "XXX: will start %d kids", (int)TheKids.count()); |
007d775d AR |
1726 | |
1727 | // keep [re]starting kids until it is time to quit | |
f95b8144 | 1728 | for (;;) { |
62e76326 | 1729 | mainStartScript(argv[0]); |
1730 | ||
007d775d | 1731 | // start each kid that needs to be [re]started; once |
10cefb7b | 1732 | for (int i = TheKids.count() - 1; i >= 0; --i) { |
007d775d | 1733 | Kid& kid = TheKids.get(i); |
ca4b9ee6 | 1734 | if (!kid.shouldRestart()) |
007d775d AR |
1735 | continue; |
1736 | ||
1737 | if ((pid = fork()) == 0) { | |
1738 | /* child */ | |
1739 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); | |
bc91a636 | 1740 | prog = argv[0]; |
007d775d AR |
1741 | argv[0] = const_cast<char*>(kid.name().termedBuf()); |
1742 | execvp(prog, argv); | |
1743 | syslog(LOG_ALERT, "execvp failed: %s", xstrerror()); | |
1744 | } | |
1745 | ||
1746 | kid.start(pid); | |
095ec2b1 AR |
1747 | syslog(LOG_NOTICE, "Squid Parent: %s process %d started", |
1748 | kid.name().termedBuf(), pid); | |
62e76326 | 1749 | } |
1750 | ||
1751 | /* parent */ | |
7dbca7a4 | 1752 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1753 | |
62e76326 | 1754 | squid_signal(SIGINT, SIG_IGN, SA_RESTART); |
1755 | ||
f95b8144 | 1756 | #ifdef _SQUID_NEXT_ |
62e76326 | 1757 | |
1758 | pid = wait3(&status, 0, NULL); | |
1759 | ||
f95b8144 | 1760 | #else |
62e76326 | 1761 | |
1762 | pid = waitpid(-1, &status, 0); | |
1763 | ||
007d775d | 1764 | #endif |
86b91dcd | 1765 | // Loop to collect all stopped kids before we go to sleep below. |
5667a628 | 1766 | do { |
007d775d AR |
1767 | Kid* kid = TheKids.find(pid); |
1768 | if (kid) { | |
1769 | kid->stop(status); | |
1770 | if (kid->calledExit()) { | |
1771 | syslog(LOG_NOTICE, | |
095ec2b1 AR |
1772 | "Squid Parent: %s process %d exited with status %d", |
1773 | kid->name().termedBuf(), | |
5667a628 | 1774 | kid->getPid(), kid->exitStatus()); |
007d775d AR |
1775 | } else if (kid->signaled()) { |
1776 | syslog(LOG_NOTICE, | |
095ec2b1 AR |
1777 | "Squid Parent: %s process %d exited due to signal %d with status %d", |
1778 | kid->name().termedBuf(), | |
5667a628 | 1779 | kid->getPid(), kid->termSignal(), kid->exitStatus()); |
007d775d | 1780 | } else { |
095ec2b1 AR |
1781 | syslog(LOG_NOTICE, "Squid Parent: %s process %d exited", |
1782 | kid->name().termedBuf(), kid->getPid()); | |
007d775d | 1783 | } |
ca4b9ee6 | 1784 | if (kid->hopeless()) { |
1a98557c | 1785 | syslog(LOG_NOTICE, "Squid Parent: %s process %d will not" |
ca4b9ee6 | 1786 | " be restarted due to repeated, frequent failures", |
1a98557c | 1787 | kid->name().termedBuf(), kid->getPid()); |
ca4b9ee6 | 1788 | } |
007d775d AR |
1789 | } else { |
1790 | syslog(LOG_NOTICE, "Squid Parent: unknown child process %d exited", pid); | |
1791 | } | |
1792 | #ifdef _SQUID_NEXT_ | |
1793 | } while ((pid = wait3(&status, WNOHANG, NULL)) > 0); | |
1794 | #else | |
5667a628 AR |
1795 | } |
1796 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0); | |
62e76326 | 1797 | #endif |
1798 | ||
ca4b9ee6 | 1799 | if (!TheKids.someRunning() && !TheKids.shouldRestartSome()) { |
520e0073 | 1800 | leave_suid(); |
c011f9bc | 1801 | DeactivateRegistered(rrAfterConfig); |
520e0073 | 1802 | enter_suid(); |
c011f9bc | 1803 | |
ca4b9ee6 DK |
1804 | if (TheKids.someSignaled(SIGINT) || TheKids.someSignaled(SIGTERM)) { |
1805 | syslog(LOG_ALERT, "Exiting due to unexpected forced shutdown"); | |
1806 | exit(1); | |
1807 | } | |
62e76326 | 1808 | |
ca4b9ee6 DK |
1809 | if (TheKids.allHopeless()) { |
1810 | syslog(LOG_ALERT, "Exiting due to repeated, frequent failures"); | |
1811 | exit(1); | |
1812 | } | |
62e76326 | 1813 | |
007d775d AR |
1814 | exit(0); |
1815 | } | |
06a0fbd3 | 1816 | |
62e76326 | 1817 | squid_signal(SIGINT, SIG_DFL, SA_RESTART); |
1818 | sleep(3); | |
f95b8144 | 1819 | } |
62e76326 | 1820 | |
bbe199dc | 1821 | /* NOTREACHED */ |
a50bfe93 | 1822 | #endif /* _SQUID_MSWIN_ */ |
a572d8be | 1823 | |
f95b8144 | 1824 | } |
fff6ad65 | 1825 | |
9ec1a1dc | 1826 | static void |
8ff3fa2e | 1827 | SquidShutdown() |
fff6ad65 | 1828 | { |
d71e4674 AR |
1829 | /* XXX: This function is called after the main loop has quit, which |
1830 | * means that no AsyncCalls would be called, including close handlers. | |
1831 | * TODO: We need to close/shut/free everything that needs calls before | |
1832 | * exiting the loop. | |
26ac0430 | 1833 | */ |
d71e4674 | 1834 | |
6c1962dd | 1835 | #if USE_WIN32_SERVICE |
1836 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1837 | #endif | |
1838 | ||
bf8fe701 | 1839 | debugs(1, 1, "Shutting down..."); |
95a83c22 | 1840 | #if USE_DNSSERVERS |
1841 | ||
1842 | dnsShutdown(); | |
1843 | #else | |
1844 | ||
1845 | idnsShutdown(); | |
1846 | #endif | |
95d2589c CT |
1847 | #if USE_SSL_CRTD |
1848 | Ssl::Helper::GetInstance()->Shutdown(); | |
1849 | #endif | |
95a83c22 | 1850 | redirectShutdown(); |
1851 | externalAclShutdown(); | |
d723bf6b | 1852 | icpConnectionClose(); |
1853 | #if USE_HTCP | |
62e76326 | 1854 | |
d723bf6b | 1855 | htcpSocketClose(); |
1856 | #endif | |
59ad6d31 | 1857 | #if SQUID_SNMP |
62e76326 | 1858 | |
d723bf6b | 1859 | snmpConnectionClose(); |
320e9f36 | 1860 | #endif |
eb824054 | 1861 | #if USE_WCCP |
62e76326 | 1862 | |
320e9f36 | 1863 | wccpConnectionClose(); |
d723bf6b | 1864 | #endif |
0b0cfcf2 | 1865 | #if USE_WCCPv2 |
1866 | ||
1867 | wccp2ConnectionClose(); | |
1868 | #endif | |
62e76326 | 1869 | |
fff6ad65 | 1870 | releaseServerSockets(); |
d723bf6b | 1871 | commCloseAllSockets(); |
79039294 AR |
1872 | |
1873 | #if USE_SQUID_ESI | |
1874 | Esi::Clean(); | |
1875 | #endif | |
1876 | ||
9a0a18de | 1877 | #if USE_DELAY_POOLS |
b67e2c8c | 1878 | DelayPools::FreePools(); |
515ec4dc | 1879 | #endif |
2f1431ea | 1880 | #if USE_AUTH |
0bcb6908 | 1881 | authenticateReset(); |
2f1431ea | 1882 | #endif |
6c1962dd | 1883 | #if USE_WIN32_SERVICE |
1884 | ||
1885 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1886 | #endif | |
62e76326 | 1887 | |
c8f4eac4 | 1888 | Store::Root().sync(); /* Flush pending object writes/unlinks */ |
4d075ba0 | 1889 | #if USE_UNLINKD |
1890 | ||
1891 | unlinkdClose(); /* after sync/flush */ | |
1892 | #endif | |
fc68f6b1 | 1893 | |
fff6ad65 | 1894 | storeDirWriteCleanLogs(0); |
1895 | PrintRusage(); | |
1896 | dumpMallocStats(); | |
c8f4eac4 | 1897 | Store::Root().sync(); /* Flush log writes */ |
fff6ad65 | 1898 | storeLogClose(); |
1899 | accessLogClose(); | |
c8f4eac4 | 1900 | Store::Root().sync(); /* Flush log close */ |
59b2d47f | 1901 | StoreFileSystem::FreeAllFs(); |
b9ae18aa | 1902 | DiskIOModule::FreeAllModules(); |
c011f9bc | 1903 | DeactivateRegistered(rrAfterConfig); |
afec404b | 1904 | #if LEAK_CHECK_MODE && 0 /* doesn't work at the moment */ |
62e76326 | 1905 | |
fff6ad65 | 1906 | configFreeMemory(); |
1907 | storeFreeMemory(); | |
33ab18e8 | 1908 | /*stmemFreeMemory(); */ |
fff6ad65 | 1909 | netdbFreeMemory(); |
1910 | ipcacheFreeMemory(); | |
1911 | fqdncacheFreeMemory(); | |
1912 | asnFreeMemory(); | |
26a369ba | 1913 | clientdbFreeMemory(); |
7021844c | 1914 | httpHeaderCleanModule(); |
d2db411c | 1915 | statFreeMemory(); |
f1fc2a8d | 1916 | eventFreeMemory(); |
c68e9c6b | 1917 | mimeFreeMemory(); |
1918 | errorClean(); | |
fff6ad65 | 1919 | #endif |
26a369ba | 1920 | #if !XMALLOC_TRACE |
62e76326 | 1921 | |
54f742e7 | 1922 | if (opt_no_daemon) { |
62e76326 | 1923 | file_close(0); |
1924 | file_close(1); | |
1925 | file_close(2); | |
54f742e7 | 1926 | } |
62e76326 | 1927 | |
33ab18e8 | 1928 | #endif |
fff6ad65 | 1929 | fdDumpOpen(); |
62e76326 | 1930 | |
236d1779 | 1931 | comm_exit(); |
62e76326 | 1932 | |
ddb43c58 | 1933 | memClean(); |
62e76326 | 1934 | |
33ab18e8 | 1935 | #if XMALLOC_TRACE |
62e76326 | 1936 | |
26a369ba | 1937 | xmalloc_find_leaks(); |
62e76326 | 1938 | |
bf8fe701 | 1939 | debugs(1, 0, "Memory used after shutdown: " << xmalloc_total); |
62e76326 | 1940 | |
33ab18e8 | 1941 | #endif |
36a97e19 | 1942 | #if MEM_GEN_TRACE |
62e76326 | 1943 | |
399e85ea | 1944 | log_trace_done(); |
62e76326 | 1945 | |
36a97e19 | 1946 | #endif |
62e76326 | 1947 | |
7de94c8c | 1948 | if (IamPrimaryProcess()) { |
a2c48c98 AR |
1949 | if (Config.pidFilename && strcmp(Config.pidFilename, "none") != 0) { |
1950 | enter_suid(); | |
1951 | safeunlink(Config.pidFilename, 0); | |
1952 | leave_suid(); | |
1953 | } | |
ab50ee9e | 1954 | } |
62e76326 | 1955 | |
bf8fe701 | 1956 | debugs(1, 1, "Squid Cache (Version " << version_string << "): Exiting normally."); |
62e76326 | 1957 | |
0cfa98cb | 1958 | /* |
1959 | * DPW 2006-10-23 | |
1960 | * We used to fclose(debug_log) here if it was set, but then | |
1961 | * we forgot to set it to NULL. That caused some coredumps | |
1962 | * because exit() ends up calling a bunch of destructors and | |
1963 | * such. So rather than forcing the debug_log to close, we'll | |
1964 | * leave it open so that those destructors can write some | |
1965 | * debugging if necessary. The file will be closed anyway when | |
1966 | * the process truly exits. | |
1967 | */ | |
62e76326 | 1968 | |
ae1feb30 | 1969 | exit(shutdown_status); |
fff6ad65 | 1970 | } |
bef81ea5 | 1971 |