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