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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 | |
3ad63615 | 40 | #include "auth/Gadgets.h" |
6d57128b | 41 | #include "base/RunnersRegistry.h" |
3d93a84d | 42 | #include "base/TextException.h" |
9a0a18de AJ |
43 | #if USE_DELAY_POOLS |
44 | #include "ClientDelayConfig.h" | |
45 | #endif | |
d841c88d | 46 | #include "comm.h" |
62ee09ca | 47 | #include "ConfigParser.h" |
96c2bb61 | 48 | #include "CpuAffinity.h" |
9a0a18de AJ |
49 | #if USE_DELAY_POOLS |
50 | #include "DelayPools.h" | |
51 | #endif | |
aa839030 | 52 | #include "errorpage.h" |
a553a5a3 | 53 | #include "event.h" |
54 | #include "EventLoop.h" | |
62ee09ca | 55 | #include "ExternalACL.h" |
e6ccf245 | 56 | #include "Store.h" |
57 | #include "ICP.h" | |
4daaf3cb | 58 | #include "ident/Ident.h" |
528b2c61 | 59 | #include "HttpReply.h" |
62ee09ca | 60 | #include "pconn.h" |
528b2c61 | 61 | #include "Mem.h" |
3ad63615 AR |
62 | #include "acl/Asn.h" |
63 | #include "acl/Acl.h" | |
75faaa7a | 64 | #include "htcp.h" |
59b2d47f | 65 | #include "StoreFileSystem.h" |
b9ae18aa | 66 | #include "DiskIO/DiskIOModule.h" |
40daaeb8 | 67 | #include "ipc/Kids.h" |
10cefb7b | 68 | #include "ipc/Coordinator.h" |
69 | #include "ipc/Strand.h" | |
055421ee | 70 | #include "ip/tools.h" |
985c86bc | 71 | #include "SquidTime.h" |
c8f4eac4 | 72 | #include "SwapDir.h" |
b6b6f466 | 73 | #include "forward.h" |
d9e7ee1f | 74 | #include "MemPool.h" |
9b5c4a9a AJ |
75 | #include "icmp/IcmpSquid.h" |
76 | #include "icmp/net_db.h" | |
f1eaa254 | 77 | #include "fs/rock/RockDirMap.h" |
44a47c6e | 78 | |
57afc994 AR |
79 | #if USE_LOADABLE_MODULES |
80 | #include "LoadableModules.h" | |
81 | #endif | |
82 | ||
95d2589c CT |
83 | #if USE_SSL_CRTD |
84 | #include "ssl/helper.h" | |
85 | #include "ssl/certificate_db.h" | |
86 | #endif | |
87 | ||
88 | #if USE_SSL | |
89 | #include "ssl/context_storage.h" | |
90 | #endif | |
91 | ||
b958cb0f | 92 | #if ICAP_CLIENT |
26cc52cb | 93 | #include "adaptation/icap/Config.h" |
b958cb0f | 94 | #endif |
6e5db507 | 95 | #if USE_ECAP |
1f3c65fc | 96 | #include "adaptation/ecap/Config.h" |
6e5db507 | 97 | #endif |
b958cb0f AR |
98 | #if USE_ADAPTATION |
99 | #include "adaptation/Config.h" | |
100 | #endif | |
79039294 AR |
101 | #if USE_SQUID_ESI |
102 | #include "esi/Module.h" | |
103 | #endif | |
7b5b7ba8 CT |
104 | #include "fs/Module.h" |
105 | ||
25f98340 AJ |
106 | #if HAVE_PATHS_H |
107 | #include <paths.h> | |
108 | #endif | |
1a774556 | 109 | |
25f98340 | 110 | #if USE_WIN32_SERVICE |
1a774556 | 111 | #include "squid_windows.h" |
112 | #include <process.h> | |
113 | ||
114 | static int opt_install_service = FALSE; | |
115 | static int opt_remove_service = FALSE; | |
116 | static int opt_signal_service = FALSE; | |
117 | static int opt_command_line = FALSE; | |
118 | extern void WIN32_svcstatusupdate(DWORD, DWORD); | |
119 | void WINAPI WIN32_svcHandler(DWORD); | |
120 | ||
121 | #endif | |
122 | ||
4fe75473 FC |
123 | #ifndef SQUID_BUILD_INFO |
124 | #define SQUID_BUILD_INFO "" | |
125 | #endif | |
126 | ||
5e6d4736 | 127 | static char *opt_syslog_facility = NULL; |
30a4f2a8 | 128 | static int icpPortNumOverride = 1; /* Want to detect "-u 0" */ |
e13ee7ad | 129 | static int configured_once = 0; |
30a4f2a8 | 130 | #if MALLOC_DBG |
4d64d74a | 131 | static int malloc_debug_level = 0; |
30a4f2a8 | 132 | #endif |
5cd39a10 | 133 | static volatile int do_reconfigure = 0; |
134 | static volatile int do_rotate = 0; | |
2681d383 | 135 | static volatile int do_shutdown = 0; |
ae1feb30 | 136 | static volatile int shutdown_status = 0; |
4d7add01 | 137 | |
a2c48c98 AR |
138 | static int RotateSignal = -1; |
139 | static int ReconfigureSignal = -1; | |
140 | static int ShutdownSignal = -1; | |
141 | ||
5cd39a10 | 142 | static void mainRotate(void); |
d71e4674 AR |
143 | static void mainReconfigureStart(void); |
144 | static void mainReconfigureFinish(void*); | |
f5b8bbc4 | 145 | static void mainInitialize(void); |
f5b8bbc4 | 146 | static void usage(void); |
63be0a78 | 147 | static void mainParseOptions(int argc, char *argv[]); |
f5b8bbc4 | 148 | static void sendSignal(void); |
149 | static void serverConnectionsOpen(void); | |
d71e4674 | 150 | static void serverConnectionsClose(void); |
bbe199dc | 151 | static void watch_child(char **); |
85407535 | 152 | static void setEffectiveUser(void); |
36a97e19 | 153 | #if MEM_GEN_TRACE |
154 | extern void log_trace_done(); | |
155 | extern void log_trace_init(char *); | |
156 | #endif | |
8ff3fa2e | 157 | static void SquidShutdown(void); |
b6a2f15e | 158 | static void mainSetCwd(void); |
efd900cb | 159 | static int checkRunningPid(void); |
85407535 | 160 | |
b293c4d8 | 161 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 162 | static const char *squid_start_script = "squid_start"; |
b293c4d8 | 163 | #endif |
e18d7fdc | 164 | |
9bc73deb | 165 | #if TEST_ACCESS |
166 | #include "test_access.c" | |
167 | #endif | |
168 | ||
63be0a78 | 169 | /** temporary thunk across to the unrefactored store interface */ |
8ff3fa2e | 170 | |
171 | class StoreRootEngine : public AsyncEngine | |
172 | { | |
173 | ||
174 | public: | |
26ac0430 | 175 | int checkEvents(int timeout) { |
8ff3fa2e | 176 | Store::Root().callback(); |
177 | return EVENT_IDLE; | |
178 | }; | |
179 | }; | |
180 | ||
9688b0ae | 181 | class SignalEngine: public AsyncEngine |
a553a5a3 | 182 | { |
183 | ||
184 | public: | |
e053c141 | 185 | SignalEngine(EventLoop &evtLoop) : loop(evtLoop) {} |
9688b0ae | 186 | virtual int checkEvents(int timeout); |
a553a5a3 | 187 | |
188 | private: | |
26ac0430 | 189 | static void StopEventLoop(void * data) { |
9688b0ae | 190 | static_cast<SignalEngine *>(data)->loop.stop(); |
a553a5a3 | 191 | } |
192 | ||
9688b0ae | 193 | void doShutdown(time_t wait); |
194 | ||
a553a5a3 | 195 | EventLoop &loop; |
196 | }; | |
197 | ||
9688b0ae | 198 | int |
199 | SignalEngine::checkEvents(int timeout) | |
a553a5a3 | 200 | { |
9688b0ae | 201 | PROF_start(SignalEngine_checkEvents); |
fc68f6b1 | 202 | |
a553a5a3 | 203 | if (do_reconfigure) { |
d71e4674 | 204 | mainReconfigureStart(); |
a553a5a3 | 205 | do_reconfigure = 0; |
a553a5a3 | 206 | } else if (do_rotate) { |
207 | mainRotate(); | |
208 | do_rotate = 0; | |
209 | } else if (do_shutdown) { | |
9688b0ae | 210 | doShutdown(do_shutdown > 0 ? (int) Config.shutdownLifetime : 0); |
a553a5a3 | 211 | do_shutdown = 0; |
26ac0430 | 212 | } |
a2c48c98 AR |
213 | BroadcastSignalIfAny(DebugSignal); |
214 | BroadcastSignalIfAny(RotateSignal); | |
215 | BroadcastSignalIfAny(ReconfigureSignal); | |
216 | BroadcastSignalIfAny(ShutdownSignal); | |
a553a5a3 | 217 | |
9688b0ae | 218 | PROF_stop(SignalEngine_checkEvents); |
219 | return EVENT_IDLE; | |
220 | } | |
a553a5a3 | 221 | |
9688b0ae | 222 | void |
223 | SignalEngine::doShutdown(time_t wait) | |
224 | { | |
225 | debugs(1, 1, "Preparing for shutdown after " << statCounter.client_http.requests << " requests"); | |
226 | debugs(1, 1, "Waiting " << wait << " seconds for active connections to finish"); | |
8ff3fa2e | 227 | |
9688b0ae | 228 | shutting_down = 1; |
229 | ||
230 | #if USE_WIN32_SERVICE | |
231 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, (wait + 1) * 1000); | |
232 | #endif | |
233 | ||
0bcb6908 | 234 | /* run the closure code which can be shared with reconfigure */ |
9688b0ae | 235 | serverConnectionsClose(); |
0bcb6908 AJ |
236 | |
237 | /* detach the auth components (only do this on full shutdown) */ | |
238 | AuthScheme::FreeAll(); | |
239 | ||
9688b0ae | 240 | eventAdd("SquidShutdown", &StopEventLoop, this, (double) (wait + 1), 1, false); |
a553a5a3 | 241 | } |
242 | ||
b8d8561b | 243 | static void |
0673c0ba | 244 | usage(void) |
ccff9601 | 245 | { |
0ee4272b | 246 | fprintf(stderr, |
0e657244 | 247 | #if USE_WIN32_SERVICE |
8eb28163 | 248 | "Usage: %s [-cdhirvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal] [-n name] [-O CommandLine]\n" |
0e657244 | 249 | #else |
8eb28163 | 250 | "Usage: %s [-cdhvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal]\n" |
0e657244 | 251 | #endif |
62e76326 | 252 | " -a port Specify HTTP port number (default: %d).\n" |
253 | " -d level Write debugging to stderr also.\n" | |
254 | " -f file Use given config-file instead of\n" | |
255 | " %s\n" | |
256 | " -h Print help message.\n" | |
0e657244 | 257 | #if USE_WIN32_SERVICE |
258 | " -i Installs as a Windows Service (see -n option).\n" | |
259 | #endif | |
62e76326 | 260 | " -k reconfigure|rotate|shutdown|interrupt|kill|debug|check|parse\n" |
261 | " Parse configuration file, then send signal to \n" | |
262 | " running copy (except -k parse) and exit.\n" | |
0e657244 | 263 | #if USE_WIN32_SERVICE |
264 | " -n name Specify Windows Service name to use for service operations\n" | |
265 | " default is: " _WIN_SQUID_DEFAULT_SERVICE_NAME ".\n" | |
266 | " -r Removes a Windows Service (see -n option).\n" | |
267 | #endif | |
5e6d4736 | 268 | " -s | -l facility\n" |
269 | " Enable logging to syslog.\n" | |
62e76326 | 270 | " -u port Specify ICP port number (default: %d), disable with 0.\n" |
271 | " -v Print version.\n" | |
272 | " -z Create swap directories\n" | |
273 | " -C Do not catch fatal signals.\n" | |
8eb28163 | 274 | " -D OBSOLETE. Scheduled for removal.\n" |
62e76326 | 275 | " -F Don't serve any requests until store is rebuilt.\n" |
276 | " -N No daemon mode.\n" | |
0e657244 | 277 | #if USE_WIN32_SERVICE |
278 | " -O options\n" | |
279 | " Set Windows Service Command line options in Registry.\n" | |
280 | #endif | |
62e76326 | 281 | " -R Do not set REUSEADDR on port.\n" |
282 | " -S Double-check swap during rebuild.\n" | |
62e76326 | 283 | " -X Force full debugging.\n" |
284 | " -Y Only return UDP_HIT or UDP_MISS_NOFETCH during fast reload.\n", | |
7dbca7a4 | 285 | APP_SHORTNAME, CACHE_HTTP_PORT, DefaultConfigFile, CACHE_ICP_PORT); |
77ffc99f | 286 | exit(1); |
ccff9601 | 287 | } |
288 | ||
63be0a78 | 289 | /** |
290 | * Parse the parameters received via command line interface. | |
291 | * | |
d85b8894 AJ |
292 | \param argc Number of options received on command line |
293 | \param argv List of parameters received on command line | |
63be0a78 | 294 | */ |
b8d8561b | 295 | static void |
296 | mainParseOptions(int argc, char *argv[]) | |
090089c4 | 297 | { |
090089c4 | 298 | extern char *optarg; |
4d64d74a | 299 | int c; |
090089c4 | 300 | |
0e657244 | 301 | #if USE_WIN32_SERVICE |
5e6d4736 | 302 | while ((c = getopt(argc, argv, "CDFNO:RSVYXa:d:f:hik:m::n:rsl:u:vz?")) != -1) |
0e657244 | 303 | #else |
05f1c52c | 304 | while ((c = getopt(argc, argv, "CDFNRSYXa:d:f:hk:m::sl:u:vz?")) != -1) |
0e657244 | 305 | #endif |
9b7292ce | 306 | { |
307 | ||
26ac0430 | 308 | switch (c) { |
62e76326 | 309 | |
310 | case 'C': | |
63be0a78 | 311 | /** \par C |
312 | * Unset/disabel global option for catchign signals. opt_catch_signals */ | |
62e76326 | 313 | opt_catch_signals = 0; |
314 | break; | |
315 | ||
316 | case 'D': | |
63be0a78 | 317 | /** \par D |
8eb28163 AJ |
318 | * OBSOLETE: WAS: override to prevent optional startup DNS tests. */ |
319 | debugs(1,DBG_CRITICAL, "WARNING: -D command-line option is obsolete."); | |
62e76326 | 320 | break; |
321 | ||
322 | case 'F': | |
63be0a78 | 323 | /** \par F |
324 | * Set global option for foreground rebuild. opt_foreground_rebuild */ | |
62e76326 | 325 | opt_foreground_rebuild = 1; |
326 | break; | |
327 | ||
328 | case 'N': | |
63be0a78 | 329 | /** \par N |
330 | * Set global option for 'no_daemon' mode. opt_no_daemon */ | |
62e76326 | 331 | opt_no_daemon = 1; |
332 | break; | |
63be0a78 | 333 | |
0e657244 | 334 | #if USE_WIN32_SERVICE |
335 | ||
336 | case 'O': | |
63be0a78 | 337 | /** \par O |
338 | * Set global option. opt_command_lin and WIN32_Command_Line */ | |
0e657244 | 339 | opt_command_line = 1; |
340 | WIN32_Command_Line = xstrdup(optarg); | |
341 | break; | |
342 | #endif | |
62e76326 | 343 | |
344 | case 'R': | |
63be0a78 | 345 | /** \par R |
346 | * Unset/disable global option opt_reuseaddr */ | |
62e76326 | 347 | opt_reuseaddr = 0; |
348 | break; | |
349 | ||
350 | case 'S': | |
63be0a78 | 351 | /** \par S |
352 | * Set global option opt_store_doublecheck */ | |
62e76326 | 353 | opt_store_doublecheck = 1; |
354 | break; | |
355 | ||
62e76326 | 356 | case 'X': |
63be0a78 | 357 | /** \par X |
358 | * Force full debugging */ | |
62493678 AJ |
359 | Debug::parseOptions("rotate=0 ALL,9"); |
360 | Debug::override_X = 1; | |
62e76326 | 361 | sigusr2_handle(SIGUSR2); |
62e76326 | 362 | break; |
363 | ||
364 | case 'Y': | |
63be0a78 | 365 | /** \par Y |
366 | * Set global option opt_reload_hit_only */ | |
62e76326 | 367 | opt_reload_hit_only = 1; |
62e76326 | 368 | break; |
369 | ||
0e657244 | 370 | #if USE_WIN32_SERVICE |
371 | ||
372 | case 'i': | |
63be0a78 | 373 | /** \par i |
374 | * Set global option opt_install_service (to TRUE) */ | |
0e657244 | 375 | opt_install_service = TRUE; |
0e657244 | 376 | break; |
0e657244 | 377 | #endif |
378 | ||
62e76326 | 379 | case 'a': |
63be0a78 | 380 | /** \par a |
381 | * Add optional HTTP port as given following the option */ | |
62e76326 | 382 | add_http_port(optarg); |
62e76326 | 383 | break; |
384 | ||
385 | case 'd': | |
63be0a78 | 386 | /** \par d |
62493678 AJ |
387 | * Set global option Debug::log_stderr to the number given follwoign the option */ |
388 | Debug::log_stderr = atoi(optarg); | |
62e76326 | 389 | break; |
390 | ||
391 | case 'f': | |
63be0a78 | 392 | /** \par f |
393 | * Load the file given instead of the default squid.conf. */ | |
62e76326 | 394 | xfree(ConfigFile); |
62e76326 | 395 | ConfigFile = xstrdup(optarg); |
62e76326 | 396 | break; |
397 | ||
398 | case 'k': | |
63be0a78 | 399 | /** \par k |
400 | * Run the administrative action given following the option */ | |
fc68f6b1 | 401 | |
63be0a78 | 402 | /** \li When its an unknown option display the usage help. */ |
62e76326 | 403 | if ((int) strlen(optarg) < 1) |
404 | usage(); | |
405 | ||
406 | if (!strncmp(optarg, "reconfigure", strlen(optarg))) | |
63be0a78 | 407 | /** \li On reconfigure send SIGHUP. */ |
62e76326 | 408 | opt_send_signal = SIGHUP; |
409 | else if (!strncmp(optarg, "rotate", strlen(optarg))) | |
63be0a78 | 410 | /** \li On rotate send SIGQUIT or SIGUSR1. */ |
7e7a0442 | 411 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 412 | |
413 | opt_send_signal = SIGQUIT; | |
414 | ||
e3175d1f | 415 | #else |
62e76326 | 416 | |
417 | opt_send_signal = SIGUSR1; | |
418 | ||
e3175d1f | 419 | #endif |
62e76326 | 420 | |
421 | else if (!strncmp(optarg, "debug", strlen(optarg))) | |
63be0a78 | 422 | /** \li On debug send SIGTRAP or SIGUSR2. */ |
7e7a0442 | 423 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 424 | |
425 | opt_send_signal = SIGTRAP; | |
426 | ||
e3175d1f | 427 | #else |
62e76326 | 428 | |
429 | opt_send_signal = SIGUSR2; | |
430 | ||
431 | #endif | |
432 | ||
433 | else if (!strncmp(optarg, "shutdown", strlen(optarg))) | |
63be0a78 | 434 | /** \li On shutdown send SIGTERM. */ |
62e76326 | 435 | opt_send_signal = SIGTERM; |
436 | else if (!strncmp(optarg, "interrupt", strlen(optarg))) | |
63be0a78 | 437 | /** \li On interrupt send SIGINT. */ |
62e76326 | 438 | opt_send_signal = SIGINT; |
439 | else if (!strncmp(optarg, "kill", strlen(optarg))) | |
63be0a78 | 440 | /** \li On kill send SIGKILL. */ |
62e76326 | 441 | opt_send_signal = SIGKILL; |
ae1feb30 | 442 | |
443 | #ifdef SIGTTIN | |
444 | ||
445 | else if (!strncmp(optarg, "restart", strlen(optarg))) | |
63be0a78 | 446 | /** \li On restart send SIGTTIN. (exit and restart by parent) */ |
447 | opt_send_signal = SIGTTIN; | |
ae1feb30 | 448 | |
449 | #endif | |
450 | ||
62e76326 | 451 | else if (!strncmp(optarg, "check", strlen(optarg))) |
63be0a78 | 452 | /** \li On check send 0 / SIGNULL. */ |
62e76326 | 453 | opt_send_signal = 0; /* SIGNULL */ |
454 | else if (!strncmp(optarg, "parse", strlen(optarg))) | |
63be0a78 | 455 | /** \li On parse set global flag to re-parse the config file only. */ |
456 | opt_parse_cfg_only = 1; | |
62e76326 | 457 | else |
458 | usage(); | |
459 | ||
460 | break; | |
461 | ||
462 | case 'm': | |
63be0a78 | 463 | /** \par m |
464 | * Set global malloc_debug_level to the value given following the option. | |
465 | * if none is given it toggles the xmalloc_trace option on/off */ | |
62e76326 | 466 | if (optarg) { |
30a4f2a8 | 467 | #if MALLOC_DBG |
fc68f6b1 | 468 | malloc_debug_level = atoi(optarg); |
30a4f2a8 | 469 | #else |
fc68f6b1 | 470 | fatal("Need to add -DMALLOC_DBG when compiling to use -mX option"); |
33ab18e8 | 471 | #endif |
62e76326 | 472 | |
473 | } else { | |
33ab18e8 | 474 | #if XMALLOC_TRACE |
62e76326 | 475 | xmalloc_trace = !xmalloc_trace; |
33ab18e8 | 476 | #else |
62e76326 | 477 | fatal("Need to configure --enable-xmalloc-debug-trace to use -m option"); |
30a4f2a8 | 478 | #endif |
62e76326 | 479 | } |
d9e7ee1f | 480 | break; |
d9e7ee1f | 481 | |
0e657244 | 482 | #if USE_WIN32_SERVICE |
483 | ||
484 | case 'n': | |
63be0a78 | 485 | /** \par n |
486 | * Set global option opt_signal_service (to TRUE). | |
487 | * Stores the additional parameter given in global WIN32_Service_name */ | |
0e657244 | 488 | xfree(WIN32_Service_name); |
489 | ||
490 | WIN32_Service_name = xstrdup(optarg); | |
491 | ||
492 | opt_signal_service = TRUE; | |
493 | ||
494 | break; | |
495 | ||
496 | case 'r': | |
63be0a78 | 497 | /** \par r |
498 | * Set global option opt_remove_service (to TRUE) */ | |
0e657244 | 499 | opt_remove_service = TRUE; |
500 | ||
501 | break; | |
502 | ||
503 | #endif | |
504 | ||
5e6d4736 | 505 | case 'l': |
63be0a78 | 506 | /** \par l |
507 | * Stores the syslog facility name in global opt_syslog_facility | |
508 | * then performs actions for -s option. */ | |
5e6d4736 | 509 | opt_syslog_facility = xstrdup(optarg); |
510 | ||
62e76326 | 511 | case 's': |
63be0a78 | 512 | /** \par s |
513 | * Initialize the syslog for output */ | |
c307aec3 | 514 | #if HAVE_SYSLOG |
62e76326 | 515 | |
5e6d4736 | 516 | _db_set_syslog(opt_syslog_facility); |
0e657244 | 517 | |
62e76326 | 518 | break; |
0e657244 | 519 | |
c307aec3 | 520 | #else |
62e76326 | 521 | |
522 | fatal("Logging to syslog not available on this platform"); | |
0e657244 | 523 | |
62e76326 | 524 | /* NOTREACHED */ |
525 | #endif | |
526 | ||
527 | case 'u': | |
63be0a78 | 528 | /** \par u |
529 | * Store the ICP port number given in global option icpPortNumOverride | |
530 | * ensuring its a positive number. */ | |
62e76326 | 531 | icpPortNumOverride = atoi(optarg); |
532 | ||
533 | if (icpPortNumOverride < 0) | |
534 | icpPortNumOverride = 0; | |
535 | ||
536 | break; | |
537 | ||
538 | case 'v': | |
63be0a78 | 539 | /** \par v |
540 | * Display squid version and build information. Then exit. */ | |
4fe75473 FC |
541 | printf("Squid Cache: Version %s\n" ,version_string); |
542 | if (strlen(SQUID_BUILD_INFO)) | |
543 | printf("%s\n",SQUID_BUILD_INFO); | |
544 | printf( "configure options: %s\n", SQUID_CONFIGURE_OPTIONS); | |
62e76326 | 545 | |
1a774556 | 546 | #if USE_WIN32_SERVICE |
547 | ||
548 | printf("Compiled as Windows System Service.\n"); | |
549 | ||
550 | #endif | |
551 | ||
62e76326 | 552 | exit(0); |
553 | ||
554 | /* NOTREACHED */ | |
555 | ||
556 | case 'z': | |
63be0a78 | 557 | /** \par z |
62493678 AJ |
558 | * Set global option Debug::log_stderr and opt_create_swap_dirs */ |
559 | Debug::log_stderr = 1; | |
62e76326 | 560 | opt_create_swap_dirs = 1; |
62e76326 | 561 | break; |
562 | ||
63be0a78 | 563 | case 'h': |
564 | ||
62e76326 | 565 | case '?': |
566 | ||
567 | default: | |
63be0a78 | 568 | /** \par h,?, or unknown |
569 | * \copydoc usage() */ | |
62e76326 | 570 | usage(); |
571 | ||
572 | break; | |
573 | } | |
9b7292ce | 574 | |
090089c4 | 575 | } |
4d64d74a | 576 | } |
090089c4 | 577 | |
7a2f978b | 578 | /* ARGSUSED */ |
b293c4d8 | 579 | void |
9b7292ce | 580 | rotate_logs(int sig) |
581 | { | |
5cd39a10 | 582 | do_rotate = 1; |
a2c48c98 | 583 | RotateSignal = sig; |
a50bfe93 | 584 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 585 | #if !HAVE_SIGACTION |
62e76326 | 586 | |
30a4f2a8 | 587 | signal(sig, rotate_logs); |
588 | #endif | |
a50bfe93 | 589 | #endif |
30a4f2a8 | 590 | } |
591 | ||
7a2f978b | 592 | /* ARGSUSED */ |
b293c4d8 | 593 | void |
9b7292ce | 594 | reconfigure(int sig) |
595 | { | |
5cd39a10 | 596 | do_reconfigure = 1; |
a2c48c98 | 597 | ReconfigureSignal = sig; |
a50bfe93 | 598 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 599 | #if !HAVE_SIGACTION |
62e76326 | 600 | |
30a4f2a8 | 601 | signal(sig, reconfigure); |
602 | #endif | |
a50bfe93 | 603 | #endif |
30a4f2a8 | 604 | } |
605 | ||
b8d8561b | 606 | void |
9b7292ce | 607 | shut_down(int sig) |
608 | { | |
2681d383 | 609 | do_shutdown = sig == SIGINT ? -1 : 1; |
a2c48c98 | 610 | ShutdownSignal = sig; |
ae1feb30 | 611 | #ifdef SIGTTIN |
612 | ||
613 | if (SIGTTIN == sig) | |
614 | shutdown_status = 1; | |
615 | ||
616 | #endif | |
a50bfe93 | 617 | #ifndef _SQUID_MSWIN_ |
a67d2b2e | 618 | #if KILL_PARENT_OPT |
62e76326 | 619 | |
5cd39a10 | 620 | if (getppid() > 1) { |
d4fe2ba0 | 621 | debugs(1, 1, "Killing master process, pid " << getppid()); |
62e76326 | 622 | |
623 | if (kill(getppid(), sig) < 0) | |
36584579 | 624 | debugs(1, 1, "kill " << getppid() << ": " << xstrerror()); |
88738790 | 625 | } |
62e76326 | 626 | |
0f658b5b | 627 | #endif /* KILL_PARENT_OPT */ |
6e40f263 | 628 | #if SA_RESETHAND == 0 |
629 | signal(SIGTERM, SIG_DFL); | |
62e76326 | 630 | |
6e40f263 | 631 | signal(SIGINT, SIG_DFL); |
62e76326 | 632 | |
a50bfe93 | 633 | #endif |
6e40f263 | 634 | #endif |
30a4f2a8 | 635 | } |
636 | ||
24382924 | 637 | static void |
9b7292ce | 638 | serverConnectionsOpen(void) |
639 | { | |
7de94c8c AR |
640 | if (IamPrimaryProcess()) { |
641 | #if USE_WCCP | |
642 | ||
5667a628 | 643 | wccpConnectionOpen(); |
7de94c8c | 644 | #endif |
45aae82b | 645 | |
7de94c8c AR |
646 | #if USE_WCCPv2 |
647 | ||
5667a628 | 648 | wccp2ConnectionOpen(); |
7de94c8c AR |
649 | #endif |
650 | } | |
095ec2b1 AR |
651 | // start various proxying services if we are responsible for them |
652 | if (IamWorkerProcess()) { | |
5667a628 AR |
653 | clientOpenListenSockets(); |
654 | icpConnectionsOpen(); | |
ace287ee | 655 | #if USE_HTCP |
62e76326 | 656 | |
5667a628 | 657 | htcpInit(); |
ace287ee | 658 | #endif |
a67d2b2e | 659 | #if SQUID_SNMP |
62e76326 | 660 | |
5667a628 | 661 | snmpConnectionOpen(); |
320e9f36 | 662 | #endif |
0b0cfcf2 | 663 | |
5667a628 AR |
664 | clientdbInit(); |
665 | icmpEngine.Open(); | |
666 | netdbInit(); | |
667 | asnInit(); | |
668 | ACL::Initialize(); | |
669 | peerSelectInit(); | |
670 | ||
671 | carpInit(); | |
672 | peerUserHashInit(); | |
673 | peerSourceHashInit(); | |
7de94c8c | 674 | } |
5f3f8d0e | 675 | } |
676 | ||
d71e4674 | 677 | static void |
9b7292ce | 678 | serverConnectionsClose(void) |
679 | { | |
0a5a8601 | 680 | assert(shutting_down || reconfiguring); |
7de94c8c AR |
681 | |
682 | if (IamPrimaryProcess()) { | |
683 | #if USE_WCCP | |
684 | ||
5667a628 | 685 | wccpConnectionClose(); |
7de94c8c AR |
686 | #endif |
687 | #if USE_WCCPv2 | |
688 | ||
5667a628 | 689 | wccp2ConnectionClose(); |
7de94c8c AR |
690 | #endif |
691 | } | |
095ec2b1 | 692 | if (IamWorkerProcess()) { |
5667a628 AR |
693 | clientHttpConnectionsClose(); |
694 | icpConnectionShutdown(); | |
72549e05 | 695 | #if USE_HTCP |
62e76326 | 696 | |
5667a628 | 697 | htcpSocketShutdown(); |
72549e05 | 698 | #endif |
62e76326 | 699 | |
5667a628 | 700 | icmpEngine.Close(); |
a67d2b2e | 701 | #if SQUID_SNMP |
62e76326 | 702 | |
5667a628 | 703 | snmpConnectionShutdown(); |
320e9f36 | 704 | #endif |
62e76326 | 705 | |
5667a628 | 706 | asnFreeMemory(); |
7de94c8c | 707 | } |
5f3f8d0e | 708 | } |
709 | ||
b8d8561b | 710 | static void |
d71e4674 | 711 | mainReconfigureStart(void) |
9b7292ce | 712 | { |
bf8fe701 | 713 | debugs(1, 1, "Reconfiguring Squid Cache (version " << version_string << ")..."); |
5cd39a10 | 714 | reconfiguring = 1; |
d71e4674 AR |
715 | |
716 | // Initiate asynchronous closing sequence | |
15df8349 | 717 | serverConnectionsClose(); |
17e6c0a1 | 718 | icpConnectionClose(); |
72549e05 | 719 | #if USE_HTCP |
62e76326 | 720 | |
72549e05 | 721 | htcpSocketClose(); |
722 | #endif | |
59ad6d31 | 723 | #if SQUID_SNMP |
62e76326 | 724 | |
17e6c0a1 | 725 | snmpConnectionClose(); |
320e9f36 | 726 | #endif |
3c573763 | 727 | #if USE_DNSSERVERS |
62e76326 | 728 | |
74addf6c | 729 | dnsShutdown(); |
3c573763 | 730 | #else |
62e76326 | 731 | |
7b724b86 | 732 | idnsShutdown(); |
eb824054 | 733 | #endif |
95d2589c CT |
734 | #if USE_SSL_CRTD |
735 | Ssl::Helper::GetInstance()->Shutdown(); | |
736 | #endif | |
737 | #if USE_SSL | |
738 | Ssl::TheGlobalContextStorage.reconfigureStart(); | |
739 | #endif | |
74addf6c | 740 | redirectShutdown(); |
0bcb6908 | 741 | authenticateReset(); |
d9572179 | 742 | externalAclShutdown(); |
2db68ce5 | 743 | storeDirCloseSwapLogs(); |
2e923080 | 744 | storeLogClose(); |
745 | accessLogClose(); | |
3ff65596 AR |
746 | #if ICAP_CLIENT |
747 | icapLogClose(); | |
748 | #endif | |
d71e4674 AR |
749 | |
750 | eventAdd("mainReconfigureFinish", &mainReconfigureFinish, NULL, 0, 1, | |
26ac0430 | 751 | false); |
d71e4674 AR |
752 | } |
753 | ||
754 | static void | |
26ac0430 AJ |
755 | mainReconfigureFinish(void *) |
756 | { | |
d71e4674 AR |
757 | debugs(1, 3, "finishing reconfiguring"); |
758 | ||
c68e9c6b | 759 | errorClean(); |
3aa4adbc | 760 | enter_suid(); /* root to read config file */ |
936b23cd AJ |
761 | |
762 | // we may have disabled the need for PURGE | |
e1381638 | 763 | if (Config2.onoff.enable_purge) |
936b23cd AJ |
764 | Config2.onoff.enable_purge = 2; |
765 | ||
18631119 | 766 | // parse the config returns a count of errors encountered. |
13aeac35 | 767 | const int oldWorkers = Config.workers; |
f1eaa254 | 768 | |
18631119 AJ |
769 | if ( parseConfigFile(ConfigFile) != 0) { |
770 | // for now any errors are a fatal condition... | |
771 | self_destruct(); | |
772 | } | |
13aeac35 AR |
773 | if (oldWorkers != Config.workers) { |
774 | debugs(1, DBG_CRITICAL, "WARNING: Changing 'workers' (from " << | |
5667a628 AR |
775 | oldWorkers << " to " << Config.workers << |
776 | ") is not supported and ignored"); | |
13aeac35 | 777 | Config.workers = oldWorkers; |
a2c48c98 | 778 | } |
936b23cd | 779 | |
96c2bb61 AR |
780 | if (IamPrimaryProcess()) |
781 | CpuAffinityCheck(); | |
782 | CpuAffinityReconfigure(); | |
783 | ||
c642c141 | 784 | setUmask(Config.umask); |
97244680 | 785 | Mem::Report(); |
3aa4adbc | 786 | setEffectiveUser(); |
62493678 | 787 | _db_init(Debug::cache_log, Debug::debugOptions); |
429fdbec | 788 | ipcache_restart(); /* clear stuck entries */ |
789 | fqdncache_restart(); /* sigh, fqdncache too */ | |
0e70aa1e | 790 | parseEtcHosts(); |
53ad48e6 | 791 | errorInitialize(); /* reload error pages */ |
2e923080 | 792 | accessLogInit(); |
76fc7e57 AJ |
793 | |
794 | #if USE_LOADABLE_MODULES | |
795 | LoadableModulesConfigure(Config.loadable_module_names); | |
796 | #endif | |
797 | ||
798 | #if USE_ADAPTATION | |
799 | bool enableAdaptation = false; | |
800 | #if ICAP_CLIENT | |
801 | Adaptation::Icap::TheConfig.finalize(); | |
802 | enableAdaptation = Adaptation::Icap::TheConfig.onoff || enableAdaptation; | |
803 | #endif | |
804 | #if USE_ECAP | |
805 | Adaptation::Ecap::TheConfig.finalize(); // must be after we load modules | |
806 | enableAdaptation = Adaptation::Ecap::TheConfig.onoff || enableAdaptation; | |
807 | #endif | |
808 | Adaptation::Config::Finalize(enableAdaptation); | |
809 | #endif | |
d090e020 | 810 | |
3ff65596 AR |
811 | #if ICAP_CLIENT |
812 | icapLogOpen(); | |
813 | #endif | |
2e923080 | 814 | storeLogOpen(); |
3c573763 | 815 | #if USE_DNSSERVERS |
62e76326 | 816 | |
74addf6c | 817 | dnsInit(); |
3c573763 | 818 | #else |
62e76326 | 819 | |
7b724b86 | 820 | idnsInit(); |
eb824054 | 821 | #endif |
95d2589c CT |
822 | #if USE_SSL_CRTD |
823 | Ssl::Helper::GetInstance()->Init(); | |
824 | #endif | |
62e76326 | 825 | |
74addf6c | 826 | redirectInit(); |
5817ee13 | 827 | authenticateInit(&Auth::TheConfig); |
d9572179 | 828 | externalAclInit(); |
7de94c8c AR |
829 | |
830 | if (IamPrimaryProcess()) { | |
1f38f50a | 831 | #if USE_WCCP |
62e76326 | 832 | |
5667a628 | 833 | wccpInit(); |
1f38f50a | 834 | #endif |
0b0cfcf2 | 835 | #if USE_WCCPv2 |
836 | ||
5667a628 | 837 | wccp2Init(); |
0b0cfcf2 | 838 | #endif |
7de94c8c | 839 | } |
62e76326 | 840 | |
0ffd22bc | 841 | serverConnectionsOpen(); |
9c2e9b50 | 842 | |
3ee2b4f8 | 843 | neighbors_init(); |
9c2e9b50 | 844 | |
2db68ce5 | 845 | storeDirOpenSwapLogs(); |
9c2e9b50 | 846 | |
9c021a38 | 847 | mimeInit(Config.mimeTablePathname); |
9c2e9b50 | 848 | |
9a0a18de | 849 | #if USE_DELAY_POOLS |
b4cd430a CT |
850 | Config.ClientDelay.finalize(); |
851 | #endif | |
852 | ||
926375e6 | 853 | if (Config.onoff.announce) { |
854 | if (!eventFind(start_announce, NULL)) | |
855 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
856 | } else { | |
857 | if (eventFind(start_announce, NULL)) | |
858 | eventDelete(start_announce, NULL); | |
859 | } | |
860 | ||
b8890359 | 861 | writePidFile(); /* write PID file */ |
9c2e9b50 | 862 | |
bf8fe701 | 863 | debugs(1, 1, "Ready to serve requests."); |
9c2e9b50 | 864 | |
5cd39a10 | 865 | reconfiguring = 0; |
866 | } | |
867 | ||
868 | static void | |
9b7292ce | 869 | mainRotate(void) |
870 | { | |
cc192b50 | 871 | icmpEngine.Close(); |
3c573763 | 872 | #if USE_DNSSERVERS |
e40aa8da | 873 | dnsShutdown(); |
3c573763 | 874 | #endif |
e40aa8da | 875 | redirectShutdown(); |
0bcb6908 | 876 | authenticateRotate(); |
d9572179 | 877 | externalAclShutdown(); |
0a6dd8fb | 878 | |
5cd39a10 | 879 | _db_rotate_log(); /* cache.log */ |
880 | storeDirWriteCleanLogs(1); | |
881 | storeLogRotate(); /* store.log */ | |
882 | accessLogRotate(); /* access.log */ | |
3ff65596 AR |
883 | #if ICAP_CLIENT |
884 | icapLogRotate(); /*icap.log*/ | |
885 | #endif | |
cc192b50 | 886 | icmpEngine.Open(); |
3c573763 | 887 | #if USE_DNSSERVERS |
e40aa8da | 888 | dnsInit(); |
3c573763 | 889 | #endif |
e40aa8da | 890 | redirectInit(); |
5817ee13 | 891 | authenticateInit(&Auth::TheConfig); |
d9572179 | 892 | externalAclInit(); |
5f3f8d0e | 893 | } |
894 | ||
067bea91 | 895 | static void |
9b7292ce | 896 | setEffectiveUser(void) |
897 | { | |
fc68f6b1 | 898 | keepCapabilities(); |
85407535 | 899 | leave_suid(); /* Run as non privilegied user */ |
cd377065 | 900 | #ifdef _SQUID_OS2_ |
62e76326 | 901 | |
cd377065 | 902 | return; |
903 | #endif | |
62e76326 | 904 | |
85407535 | 905 | if (geteuid() == 0) { |
bf8fe701 | 906 | debugs(0, 0, "Squid is not safe to run as root! If you must"); |
907 | debugs(0, 0, "start Squid as root, then you must configure"); | |
908 | debugs(0, 0, "it to run as a non-priveledged user with the"); | |
909 | debugs(0, 0, "'cache_effective_user' option in the config file."); | |
62e76326 | 910 | fatal("Don't run Squid as root, set 'cache_effective_user'!"); |
85407535 | 911 | } |
912 | } | |
913 | ||
b6a2f15e | 914 | static void |
9b7292ce | 915 | mainSetCwd(void) |
916 | { | |
4a504376 | 917 | char pathbuf[MAXPATHLEN]; |
62e76326 | 918 | |
b6a2f15e | 919 | if (Config.coredump_dir) { |
62e76326 | 920 | if (0 == strcmp("none", Config.coredump_dir)) { |
921 | (void) 0; | |
922 | } else if (chdir(Config.coredump_dir) == 0) { | |
bf8fe701 | 923 | debugs(0, 1, "Set Current Directory to " << Config.coredump_dir); |
62e76326 | 924 | return; |
925 | } else { | |
bf8fe701 | 926 | debugs(50, 0, "chdir: " << Config.coredump_dir << ": " << xstrerror()); |
62e76326 | 927 | } |
b6a2f15e | 928 | } |
62e76326 | 929 | |
02e8115e | 930 | /* If we don't have coredump_dir or couldn't cd there, report current dir */ |
4a504376 | 931 | if (getcwd(pathbuf, MAXPATHLEN)) { |
bf8fe701 | 932 | debugs(0, 1, "Current Directory is " << pathbuf); |
4a504376 | 933 | } else { |
bf8fe701 | 934 | debugs(50, 0, "WARNING: Can't find current directory, getcwd: " << xstrerror()); |
4a504376 | 935 | } |
b6a2f15e | 936 | } |
937 | ||
b8d8561b | 938 | static void |
9b7292ce | 939 | mainInitialize(void) |
940 | { | |
efd900cb | 941 | /* chroot if configured to run inside chroot */ |
62e76326 | 942 | |
64b0a10d | 943 | if (Config.chroot_dir && (chroot(Config.chroot_dir) != 0 || chdir("/") != 0)) { |
62e76326 | 944 | fatal("failed to chroot"); |
efd900cb | 945 | } |
62e76326 | 946 | |
1758c627 | 947 | if (opt_catch_signals) { |
62e76326 | 948 | squid_signal(SIGSEGV, death, SA_NODEFER | SA_RESETHAND); |
949 | squid_signal(SIGBUS, death, SA_NODEFER | SA_RESETHAND); | |
44f99671 | 950 | } |
62e76326 | 951 | |
30a4f2a8 | 952 | squid_signal(SIGPIPE, SIG_IGN, SA_RESTART); |
953 | squid_signal(SIGCHLD, sig_child, SA_NODEFER | SA_RESTART); | |
44f99671 | 954 | |
85407535 | 955 | setEffectiveUser(); |
62e76326 | 956 | |
30a4f2a8 | 957 | if (icpPortNumOverride != 1) |
62e76326 | 958 | Config.Port.icp = (u_short) icpPortNumOverride; |
30a4f2a8 | 959 | |
62493678 | 960 | _db_init(Debug::cache_log, Debug::debugOptions); |
62e76326 | 961 | |
62493678 | 962 | fd_open(fileno(debug_log), FD_LOG, Debug::cache_log); |
62e76326 | 963 | |
71a17702 | 964 | #if MEM_GEN_TRACE |
62e76326 | 965 | |
71a17702 | 966 | log_trace_init("/tmp/squid.alloc"); |
62e76326 | 967 | |
71a17702 | 968 | #endif |
62e76326 | 969 | |
bf8fe701 | 970 | debugs(1, 0, "Starting Squid Cache version " << version_string << " for " << CONFIG_HOST_TYPE << "..."); |
62e76326 | 971 | |
ec4daaa5 | 972 | #ifdef _SQUID_WIN32_ |
b293c4d8 | 973 | |
974 | if (WIN32_run_mode == _WIN_SQUID_RUN_MODE_SERVICE) { | |
bf8fe701 | 975 | debugs(1, 0, "Running as " << WIN32_Service_name << " Windows System Service on " << WIN32_OS_string); |
976 | debugs(1, 0, "Service command line is: " << WIN32_Service_Command_Line); | |
b293c4d8 | 977 | } else |
bf8fe701 | 978 | debugs(1, 0, "Running on " << WIN32_OS_string); |
b293c4d8 | 979 | |
980 | #endif | |
981 | ||
36584579 | 982 | debugs(1, 1, "Process ID " << getpid()); |
095ec2b1 AR |
983 | |
984 | debugs(1, 1, "Process Roles:" << ProcessRoles()); | |
985 | ||
f3f0f563 | 986 | setSystemLimits(); |
bf8fe701 | 987 | debugs(1, 1, "With " << Squid_MaxFD << " file descriptors available"); |
5f3f8d0e | 988 | |
6c1962dd | 989 | #ifdef _SQUID_MSWIN_ |
990 | ||
bf8fe701 | 991 | debugs(1, 1, "With " << _getmaxstdio() << " CRT stdio descriptors available"); |
6c1962dd | 992 | |
993 | if (WIN32_Socks_initialized) | |
bf8fe701 | 994 | debugs(1, 1, "Windows sockets initialized"); |
6c1962dd | 995 | |
babd1fd5 | 996 | if (WIN32_OS_version > _WIN_OS_WINNT) { |
26ac0430 | 997 | WIN32_IpAddrChangeMonitorInit(); |
babd1fd5 | 998 | } |
999 | ||
6c1962dd | 1000 | #endif |
1001 | ||
9f75c559 | 1002 | if (!configured_once) |
62e76326 | 1003 | disk_init(); /* disk_init must go before ipcache_init() */ |
1004 | ||
5f3f8d0e | 1005 | ipcache_init(); |
62e76326 | 1006 | |
f88bb09c | 1007 | fqdncache_init(); |
62e76326 | 1008 | |
0e70aa1e | 1009 | parseEtcHosts(); |
62e76326 | 1010 | |
3c573763 | 1011 | #if USE_DNSSERVERS |
62e76326 | 1012 | |
74addf6c | 1013 | dnsInit(); |
62e76326 | 1014 | |
3c573763 | 1015 | #else |
62e76326 | 1016 | |
7b724b86 | 1017 | idnsInit(); |
62e76326 | 1018 | |
eb824054 | 1019 | #endif |
62e76326 | 1020 | |
74addf6c | 1021 | redirectInit(); |
62e76326 | 1022 | |
5817ee13 | 1023 | authenticateInit(&Auth::TheConfig); |
62e76326 | 1024 | |
d9572179 | 1025 | externalAclInit(); |
62e76326 | 1026 | |
2ac76861 | 1027 | httpHeaderInitModule(); /* must go before any header processing (e.g. the one in errorInitialize) */ |
62e76326 | 1028 | |
2246b732 | 1029 | httpReplyInitModule(); /* must go before accepting replies */ |
62e76326 | 1030 | |
9b312a19 | 1031 | errorInitialize(); |
62e76326 | 1032 | |
7a2f978b | 1033 | accessLogInit(); |
62e76326 | 1034 | |
e1381638 | 1035 | #if ICAP_CLIENT |
3ff65596 AR |
1036 | icapLogOpen(); |
1037 | #endif | |
1038 | ||
3898f57f | 1039 | #if USE_IDENT |
4daaf3cb | 1040 | Ident::Init(); |
3898f57f | 1041 | #endif |
4daaf3cb | 1042 | |
59ad6d31 | 1043 | #if SQUID_SNMP |
62e76326 | 1044 | |
5e14bf6d | 1045 | snmpInit(); |
62e76326 | 1046 | |
5e14bf6d | 1047 | #endif |
30a4f2a8 | 1048 | #if MALLOC_DBG |
62e76326 | 1049 | |
5f3f8d0e | 1050 | malloc_debug(0, malloc_debug_level); |
62e76326 | 1051 | |
5f3f8d0e | 1052 | #endif |
1053 | ||
dbe4fd8e | 1054 | if (!configured_once) { |
a3d0a19d | 1055 | #if USE_UNLINKD |
62e76326 | 1056 | unlinkdInit(); |
1057 | #endif | |
1058 | ||
1059 | urlInitialize(); | |
62e76326 | 1060 | statInit(); |
1061 | storeInit(); | |
1062 | mainSetCwd(); | |
1063 | /* after this point we want to see the mallinfo() output */ | |
1064 | do_mallinfo = 1; | |
1065 | mimeInit(Config.mimeTablePathname); | |
62e76326 | 1066 | refreshInit(); |
9a0a18de | 1067 | #if USE_DELAY_POOLS |
62e76326 | 1068 | DelayPools::Init(); |
0d7e5d78 | 1069 | #endif |
62e76326 | 1070 | |
b6b6f466 | 1071 | FwdState::initModule(); |
62ee09ca | 1072 | /* register the modules in the cache manager menus */ |
62ee09ca | 1073 | |
a08f1b5a | 1074 | cbdataRegisterWithCacheManager(); |
62ee09ca | 1075 | /* These use separate calls so that the comm loops can eventually |
1076 | * coexist. | |
1077 | */ | |
62ee09ca | 1078 | |
15b3c0d7 | 1079 | eventInit(); |
610ee341 | 1080 | |
26ac0430 | 1081 | // TODO: pconn is a good candidate for new-style registration |
6852be71 | 1082 | // PconnModule::GetInstance()->registerWithCacheManager(); |
26ac0430 | 1083 | // moved to PconnModule::PconnModule() |
5f3f8d0e | 1084 | } |
62e76326 | 1085 | |
7de94c8c | 1086 | if (IamPrimaryProcess()) { |
1f38f50a | 1087 | #if USE_WCCP |
5667a628 | 1088 | wccpInit(); |
62e76326 | 1089 | |
0b0cfcf2 | 1090 | #endif |
1091 | #if USE_WCCPv2 | |
1092 | ||
5667a628 | 1093 | wccp2Init(); |
0b0cfcf2 | 1094 | |
1f38f50a | 1095 | #endif |
7de94c8c | 1096 | } |
62e76326 | 1097 | |
2285407f | 1098 | serverConnectionsOpen(); |
62e76326 | 1099 | |
3ee2b4f8 | 1100 | neighbors_init(); |
fc68f6b1 | 1101 | |
5f5e883f | 1102 | // neighborsRegisterWithCacheManager(); //moved to neighbors_init() |
62e76326 | 1103 | |
efd900cb | 1104 | if (Config.chroot_dir) |
62e76326 | 1105 | no_suid(); |
1106 | ||
dbe4fd8e | 1107 | if (!configured_once) |
62e76326 | 1108 | writePidFile(); /* write PID file */ |
0a5b9b32 | 1109 | |
7e7a0442 | 1110 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 1111 | |
e3175d1f | 1112 | squid_signal(SIGQUIT, rotate_logs, SA_RESTART); |
62e76326 | 1113 | |
e3175d1f | 1114 | squid_signal(SIGTRAP, sigusr2_handle, SA_RESTART); |
62e76326 | 1115 | |
e3175d1f | 1116 | #else |
62e76326 | 1117 | |
30a4f2a8 | 1118 | squid_signal(SIGUSR1, rotate_logs, SA_RESTART); |
62e76326 | 1119 | |
30a4f2a8 | 1120 | squid_signal(SIGUSR2, sigusr2_handle, SA_RESTART); |
62e76326 | 1121 | |
9fc0b4b8 | 1122 | #endif |
62e76326 | 1123 | |
30a4f2a8 | 1124 | squid_signal(SIGHUP, reconfigure, SA_RESTART); |
62e76326 | 1125 | |
30a4f2a8 | 1126 | squid_signal(SIGTERM, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1127 | |
30a4f2a8 | 1128 | squid_signal(SIGINT, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1129 | |
ae1feb30 | 1130 | #ifdef SIGTTIN |
1131 | ||
1132 | squid_signal(SIGTTIN, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); | |
1133 | ||
1134 | #endif | |
1135 | ||
58a39dc9 | 1136 | memCheckInit(); |
62e76326 | 1137 | |
57afc994 AR |
1138 | #if USE_LOADABLE_MODULES |
1139 | LoadableModulesConfigure(Config.loadable_module_names); | |
1140 | #endif | |
1141 | ||
8f361c50 AR |
1142 | #if USE_ADAPTATION |
1143 | bool enableAdaptation = false; | |
1144 | ||
1145 | // We can remove this dependency on specific adaptation mechanisms | |
1146 | // if we create a generic Registry of such mechanisms. Should we? | |
b958cb0f | 1147 | #if ICAP_CLIENT |
26cc52cb AR |
1148 | Adaptation::Icap::TheConfig.finalize(); |
1149 | enableAdaptation = Adaptation::Icap::TheConfig.onoff || enableAdaptation; | |
6e5db507 AR |
1150 | #endif |
1151 | #if USE_ECAP | |
574b508c AR |
1152 | Adaptation::Ecap::TheConfig.finalize(); // must be after we load modules |
1153 | enableAdaptation = Adaptation::Ecap::TheConfig.onoff || enableAdaptation; | |
b958cb0f | 1154 | #endif |
8f361c50 AR |
1155 | // must be the last adaptation-related finalize |
1156 | Adaptation::Config::Finalize(enableAdaptation); | |
b958cb0f AR |
1157 | #endif |
1158 | ||
79039294 AR |
1159 | #if USE_SQUID_ESI |
1160 | Esi::Init(); | |
1161 | #endif | |
b958cb0f | 1162 | |
9a0a18de | 1163 | #if USE_DELAY_POOLS |
b4cd430a CT |
1164 | Config.ClientDelay.finalize(); |
1165 | #endif | |
1166 | ||
bf8fe701 | 1167 | debugs(1, 1, "Ready to serve requests."); |
62e76326 | 1168 | |
dbe4fd8e | 1169 | if (!configured_once) { |
c8f4eac4 | 1170 | eventAdd("storeMaintain", Store::Maintain, NULL, 1.0, 1); |
62e76326 | 1171 | |
1172 | if (Config.onoff.announce) | |
1173 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
1174 | ||
1175 | eventAdd("ipcache_purgelru", ipcache_purgelru, NULL, 10.0, 1); | |
1176 | ||
1177 | eventAdd("fqdncache_purgelru", fqdncache_purgelru, NULL, 15.0, 1); | |
1178 | ||
88bfe092 | 1179 | #if USE_XPROF_STATS |
62e76326 | 1180 | |
1181 | eventAdd("cpuProfiling", xprof_event, NULL, 1.0, 1); | |
1182 | ||
88bfe092 | 1183 | #endif |
62e76326 | 1184 | |
1185 | eventAdd("memPoolCleanIdlePools", Mem::CleanIdlePools, NULL, 15.0, 1); | |
4d7add01 | 1186 | } |
62e76326 | 1187 | |
dbe4fd8e | 1188 | configured_once = 1; |
4d64d74a | 1189 | } |
1190 | ||
c842329d | 1191 | /// unsafe main routine -- may throw |
f3f3e961 | 1192 | int SquidMain(int argc, char **argv); |
c842329d | 1193 | /// unsafe main routine wrapper to catch exceptions |
6e5db507 AR |
1194 | static int SquidMainSafe(int argc, char **argv); |
1195 | ||
6c1962dd | 1196 | #if USE_WIN32_SERVICE |
1197 | /* When USE_WIN32_SERVICE is defined, the main function is placed in win32.cc */ | |
1198 | extern "C" void WINAPI | |
e1381638 | 1199 | SquidWinSvcMain(int argc, char **argv) |
18631119 AJ |
1200 | { |
1201 | SquidMainSafe(argc, argv); | |
1202 | } | |
6c1962dd | 1203 | #else |
b8d8561b | 1204 | int |
1205 | main(int argc, char **argv) | |
6e5db507 | 1206 | { |
18631119 | 1207 | return SquidMainSafe(argc, argv); |
6e5db507 | 1208 | } |
18631119 | 1209 | #endif |
6e5db507 AR |
1210 | |
1211 | static int | |
1212 | SquidMainSafe(int argc, char **argv) | |
1213 | { | |
1214 | try { | |
1215 | return SquidMain(argc, argv); | |
26ac0430 | 1216 | } catch (const std::exception &e) { |
f5f9e44c | 1217 | debugs(0,0, "dying from an unhandled exception: " << e.what()); |
26ac0430 AJ |
1218 | throw; |
1219 | } catch (...) { | |
f5f9e44c | 1220 | debugs(0,0, "dying from an unhandled exception."); |
26ac0430 AJ |
1221 | throw; |
1222 | } | |
1223 | return -1; // not reached | |
6e5db507 AR |
1224 | } |
1225 | ||
d4a3e179 AR |
1226 | /// computes name and ID for the current kid process |
1227 | static void | |
1228 | ConfigureCurrentKid(const char *processName) | |
1229 | { | |
5667a628 | 1230 | // kids are marked with parenthesis around their process names |
d4a3e179 AR |
1231 | if (processName && processName[0] == '(') { |
1232 | if (const char *idStart = strrchr(processName, '-')) { | |
1233 | KidIdentifier = atoi(idStart + 1); | |
9de6c973 AR |
1234 | const size_t nameLen = idStart - (processName + 1); |
1235 | assert(nameLen < sizeof(TheKidName)); | |
1236 | xstrncpy(TheKidName, processName + 1, nameLen + 1); | |
095ec2b1 AR |
1237 | if (!strcmp(TheKidName, "squid-coord")) |
1238 | TheProcessKind = pkCoordinator; | |
1239 | else | |
1240 | if (!strcmp(TheKidName, "squid")) | |
1241 | TheProcessKind = pkWorker; | |
1242 | else | |
1243 | if (!strcmp(TheKidName, "squid-disk")) | |
1244 | TheProcessKind = pkDisker; | |
1245 | else | |
1246 | TheProcessKind = pkOther; // including coordinator | |
d4a3e179 | 1247 | } |
2664c457 | 1248 | } else { |
9de6c973 | 1249 | xstrncpy(TheKidName, APP_SHORTNAME, sizeof(TheKidName)); |
2664c457 | 1250 | KidIdentifier = 0; |
d4a3e179 | 1251 | } |
d4a3e179 AR |
1252 | } |
1253 | ||
f3f3e961 | 1254 | int |
6e5db507 | 1255 | SquidMain(int argc, char **argv) |
9b7292ce | 1256 | { |
d4a3e179 | 1257 | ConfigureCurrentKid(argv[0]); |
007d775d | 1258 | |
a0aa9e74 | 1259 | #ifdef _SQUID_WIN32_ |
1260 | ||
1261 | int WIN32_init_err; | |
1262 | #endif | |
4d64d74a | 1263 | |
a4ba1105 | 1264 | #if HAVE_SBRK |
62e76326 | 1265 | |
9b7292ce | 1266 | sbrk_start = sbrk(0); |
a4ba1105 | 1267 | #endif |
1268 | ||
fb6a61d1 | 1269 | Debug::parseOptions(NULL); |
9b7292ce | 1270 | debug_log = stderr; |
62e76326 | 1271 | |
b9269882 | 1272 | #if defined(SQUID_MAXFD_LIMIT) |
1273 | ||
1274 | if (SQUID_MAXFD_LIMIT < Squid_MaxFD) | |
1275 | Squid_MaxFD = SQUID_MAXFD_LIMIT; | |
1276 | ||
1277 | #endif | |
399e85ea | 1278 | |
ec4daaa5 | 1279 | #ifdef _SQUID_WIN32_ |
6c1962dd | 1280 | |
a0aa9e74 | 1281 | if ((WIN32_init_err = WIN32_Subsystem_Init(&argc, &argv))) |
1282 | return WIN32_init_err; | |
62e76326 | 1283 | |
0e6d05ef | 1284 | #endif |
1285 | ||
9b7292ce | 1286 | /* call mallopt() before anything else */ |
0b29fe44 | 1287 | #if HAVE_MALLOPT |
7328e889 | 1288 | #ifdef M_GRAIN |
9b7292ce | 1289 | /* Round up all sizes to a multiple of this */ |
1290 | mallopt(M_GRAIN, 16); | |
62e76326 | 1291 | |
7328e889 | 1292 | #endif |
1293 | #ifdef M_MXFAST | |
9b7292ce | 1294 | /* biggest size that is considered a small block */ |
1295 | mallopt(M_MXFAST, 256); | |
62e76326 | 1296 | |
7328e889 | 1297 | #endif |
1298 | #ifdef M_NBLKS | |
9b7292ce | 1299 | /* allocate this many small blocks at once */ |
1300 | mallopt(M_NLBLKS, 32); | |
62e76326 | 1301 | |
7328e889 | 1302 | #endif |
1303 | #endif /* HAVE_MALLOPT */ | |
1304 | ||
9b7292ce | 1305 | squid_srandom(time(NULL)); |
4d64d74a | 1306 | |
9b7292ce | 1307 | getCurrentTime(); |
62e76326 | 1308 | |
9b7292ce | 1309 | squid_start = current_time; |
62e76326 | 1310 | |
9b7292ce | 1311 | failure_notify = fatal_dump; |
4d64d74a | 1312 | |
6c1962dd | 1313 | #if USE_WIN32_SERVICE |
1314 | ||
9b7292ce | 1315 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1316 | |
1317 | #endif | |
1318 | ||
9b7292ce | 1319 | mainParseOptions(argc, argv); |
4d64d74a | 1320 | |
9aae6be3 | 1321 | if (opt_parse_cfg_only) { |
26ac0430 | 1322 | Debug::parseOptions("ALL,1"); |
9aae6be3 | 1323 | } |
1324 | ||
6c1962dd | 1325 | #if USE_WIN32_SERVICE |
1326 | ||
26ac0430 | 1327 | if (opt_install_service) { |
9b7292ce | 1328 | WIN32_InstallService(); |
a0aa9e74 | 1329 | return 0; |
9b7292ce | 1330 | } |
6c1962dd | 1331 | |
26ac0430 | 1332 | if (opt_remove_service) { |
9b7292ce | 1333 | WIN32_RemoveService(); |
a0aa9e74 | 1334 | return 0; |
9b7292ce | 1335 | } |
6c1962dd | 1336 | |
26ac0430 | 1337 | if (opt_command_line) { |
9b7292ce | 1338 | WIN32_SetServiceCommandLine(); |
a0aa9e74 | 1339 | return 0; |
9b7292ce | 1340 | } |
6c1962dd | 1341 | |
1342 | #endif | |
1343 | ||
9b7292ce | 1344 | /* parse configuration file |
1345 | * note: in "normal" case this used to be called from mainInitialize() */ | |
1346 | { | |
1347 | int parse_err; | |
62e76326 | 1348 | |
9b7292ce | 1349 | if (!ConfigFile) |
1350 | ConfigFile = xstrdup(DefaultConfigFile); | |
62e76326 | 1351 | |
9b7292ce | 1352 | assert(!configured_once); |
62e76326 | 1353 | |
9b7292ce | 1354 | Mem::Init(); |
62e76326 | 1355 | |
9b7292ce | 1356 | storeFsInit(); /* required for config parsing */ |
62e76326 | 1357 | |
7b5b7ba8 | 1358 | /* TODO: call the FS::Clean() in shutdown to do Fs cleanups */ |
af6a12ee | 1359 | Fs::Init(); |
7b5b7ba8 | 1360 | |
b9ae18aa | 1361 | /* May not be needed for parsing, have not audited for such */ |
1362 | DiskIOModule::SetupAllModules(); | |
1363 | ||
59b2d47f | 1364 | /* Shouldn't be needed for config parsing, but have not audited for such */ |
1365 | StoreFileSystem::SetupAllFs(); | |
1366 | ||
c8f4eac4 | 1367 | /* we may want the parsing process to set this up in the future */ |
1368 | Store::Root(new StoreController); | |
1369 | ||
5817ee13 AJ |
1370 | InitAuthSchemes(); /* required for config parsing */ |
1371 | ||
055421ee AJ |
1372 | Ip::ProbeTransport(); // determine IPv4 or IPv6 capabilities before parsing. |
1373 | ||
dd9b1081 | 1374 | parse_err = parseConfigFile(ConfigFile); |
62e76326 | 1375 | |
97244680 | 1376 | Mem::Report(); |
26ac0430 | 1377 | |
18631119 | 1378 | if (opt_parse_cfg_only || parse_err > 0) |
9b7292ce | 1379 | return parse_err; |
9b7292ce | 1380 | } |
c642c141 | 1381 | setUmask(Config.umask); |
9b7292ce | 1382 | if (-1 == opt_send_signal) |
1383 | if (checkRunningPid()) | |
205d7c3b | 1384 | exit(0); |
e13ee7ad | 1385 | |
9bc73deb | 1386 | #if TEST_ACCESS |
62e76326 | 1387 | |
95564b0d | 1388 | comm_init(); |
62e76326 | 1389 | |
9b7292ce | 1390 | mainInitialize(); |
62e76326 | 1391 | |
9b7292ce | 1392 | test_access(); |
62e76326 | 1393 | |
9b7292ce | 1394 | return 0; |
62e76326 | 1395 | |
9bc73deb | 1396 | #endif |
1397 | ||
9b7292ce | 1398 | /* send signal to running copy and exit */ |
26ac0430 | 1399 | if (opt_send_signal != -1) { |
9b7292ce | 1400 | /* chroot if configured to run inside chroot */ |
62e76326 | 1401 | |
a572d8be | 1402 | if (Config.chroot_dir) { |
1403 | if (chroot(Config.chroot_dir)) | |
1404 | fatal("failed to chroot"); | |
1405 | ||
1406 | no_suid(); | |
1407 | } else { | |
1408 | leave_suid(); | |
9b7292ce | 1409 | } |
62e76326 | 1410 | |
9b7292ce | 1411 | sendSignal(); |
1412 | /* NOTREACHED */ | |
1413 | } | |
62e76326 | 1414 | |
6d57128b AR |
1415 | debugs(1,2, HERE << "Doing post-config initialization\n"); |
1416 | ActivateRegistered(rrAfterConfig); | |
1417 | // TODO: find a place to call DeactivateRegistered(rrAfterConfig); | |
9487bae9 | 1418 | |
2ae5c85f AJ |
1419 | if (!opt_no_daemon && Config.workers > 0) |
1420 | watch_child(argv); | |
1421 | ||
26ac0430 | 1422 | if (opt_create_swap_dirs) { |
9b7292ce | 1423 | /* chroot if configured to run inside chroot */ |
0e657244 | 1424 | |
9b7292ce | 1425 | if (Config.chroot_dir && chroot(Config.chroot_dir)) { |
1426 | fatal("failed to chroot"); | |
1427 | } | |
62e76326 | 1428 | |
9b7292ce | 1429 | setEffectiveUser(); |
bf8fe701 | 1430 | debugs(0, 0, "Creating Swap Directories"); |
c8f4eac4 | 1431 | Store::Root().create(); |
6c1962dd | 1432 | |
9b7292ce | 1433 | return 0; |
9b7292ce | 1434 | } |
62e76326 | 1435 | |
96c2bb61 AR |
1436 | if (IamPrimaryProcess()) |
1437 | CpuAffinityCheck(); | |
1438 | CpuAffinityInit(); | |
1439 | ||
95564b0d | 1440 | setMaxFD(); |
1441 | ||
1442 | /* init comm module */ | |
1443 | comm_init(); | |
62e76326 | 1444 | |
26ac0430 | 1445 | if (opt_no_daemon) { |
9b7292ce | 1446 | /* we have to init fdstat here. */ |
1447 | fd_open(0, FD_LOG, "stdin"); | |
1448 | fd_open(1, FD_LOG, "stdout"); | |
1449 | fd_open(2, FD_LOG, "stderr"); | |
1450 | } | |
62e76326 | 1451 | |
6c1962dd | 1452 | #if USE_WIN32_SERVICE |
1453 | ||
9b7292ce | 1454 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1455 | |
1456 | #endif | |
1457 | ||
9b7292ce | 1458 | mainInitialize(); |
4d64d74a | 1459 | |
6c1962dd | 1460 | #if USE_WIN32_SERVICE |
1461 | ||
9b7292ce | 1462 | WIN32_svcstatusupdate(SERVICE_RUNNING, 0); |
6c1962dd | 1463 | |
1464 | #endif | |
1465 | ||
9b7292ce | 1466 | /* main loop */ |
a553a5a3 | 1467 | EventLoop mainLoop; |
62e76326 | 1468 | |
9688b0ae | 1469 | SignalEngine signalEngine(mainLoop); |
6c1962dd | 1470 | |
9688b0ae | 1471 | mainLoop.registerEngine(&signalEngine); |
62e76326 | 1472 | |
8ff3fa2e | 1473 | /* TODO: stop requiring the singleton here */ |
1474 | mainLoop.registerEngine(EventScheduler::GetInstance()); | |
62e76326 | 1475 | |
8ff3fa2e | 1476 | StoreRootEngine store_engine; |
615f9581 | 1477 | |
8ff3fa2e | 1478 | mainLoop.registerEngine(&store_engine); |
a774fd3f | 1479 | |
8ff3fa2e | 1480 | CommSelectEngine comm_engine; |
1481 | ||
8ff3fa2e | 1482 | mainLoop.registerEngine(&comm_engine); |
1483 | ||
bef81ea5 | 1484 | mainLoop.setPrimaryEngine(&comm_engine); |
1485 | ||
8ff3fa2e | 1486 | /* use the standard time service */ |
1487 | TimeEngine time_engine; | |
1488 | ||
1489 | mainLoop.setTimeService(&time_engine); | |
1490 | ||
7de94c8c | 1491 | if (IamCoordinatorProcess()) |
4299f876 | 1492 | AsyncJob::Start(Ipc::Coordinator::Instance()); |
095ec2b1 | 1493 | else if (UsingSmp() && (IamWorkerProcess() || IamDiskProcess())) |
4299f876 | 1494 | AsyncJob::Start(new Ipc::Strand); |
10cefb7b | 1495 | |
48d54e4d AJ |
1496 | /* at this point we are finished the synchronous startup. */ |
1497 | starting_up = 0; | |
1498 | ||
8ff3fa2e | 1499 | mainLoop.run(); |
1500 | ||
1501 | if (mainLoop.errcount == 10) | |
1502 | fatal_dump("Event loop exited with failure."); | |
1503 | ||
1504 | /* shutdown squid now */ | |
1505 | SquidShutdown(); | |
62e76326 | 1506 | |
9b7292ce | 1507 | /* NOTREACHED */ |
9b7292ce | 1508 | return 0; |
090089c4 | 1509 | } |
7690e8eb | 1510 | |
b8d8561b | 1511 | static void |
0673c0ba | 1512 | sendSignal(void) |
7690e8eb | 1513 | { |
ff8d0ea6 | 1514 | pid_t pid; |
fedac7e5 | 1515 | debug_log = stderr; |
258ac4d7 | 1516 | |
1517 | if (strcmp(Config.pidFilename, "none") == 0) { | |
bf8fe701 | 1518 | debugs(0, 1, "No pid_filename specified. Trusting you know what you are doing."); |
258ac4d7 | 1519 | } |
1520 | ||
fedac7e5 | 1521 | pid = readPidFile(); |
62e76326 | 1522 | |
fedac7e5 | 1523 | if (pid > 1) { |
6c1962dd | 1524 | #if USE_WIN32_SERVICE |
1525 | ||
1526 | if (opt_signal_service) { | |
1527 | WIN32_sendSignal(opt_send_signal); | |
1528 | exit(0); | |
1529 | } else | |
1530 | #ifdef _SQUID_MSWIN_ | |
1531 | { | |
7dbca7a4 | 1532 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
6c1962dd | 1533 | fprintf(stderr, "signal to Squid Service:\n"); |
1534 | fprintf(stderr, "missing -n command line switch.\n"); | |
1535 | exit(1); | |
1536 | } | |
1537 | ||
1538 | /* NOTREACHED */ | |
1539 | #endif | |
1540 | ||
1541 | #endif | |
1542 | ||
62e76326 | 1543 | if (kill(pid, opt_send_signal) && |
1544 | /* ignore permissions if just running check */ | |
1545 | !(opt_send_signal == 0 && errno == EPERM)) { | |
7dbca7a4 | 1546 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
62e76326 | 1547 | fprintf(stderr, "signal %d to process %d: %s\n", |
1548 | opt_send_signal, (int) pid, xstrerror()); | |
1549 | exit(1); | |
1550 | } | |
fedac7e5 | 1551 | } else { |
205d7c3b | 1552 | if (opt_send_signal != SIGTERM) { |
e08d498f | 1553 | fprintf(stderr, "%s: ERROR: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1554 | exit(1); |
1555 | } else { | |
e08d498f | 1556 | fprintf(stderr, "%s: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1557 | exit(0); |
1558 | } | |
7690e8eb | 1559 | } |
62e76326 | 1560 | |
fedac7e5 | 1561 | /* signal successfully sent */ |
1562 | exit(0); | |
1563 | } | |
f95b8144 | 1564 | |
a50bfe93 | 1565 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 1566 | /* |
1567 | * This function is run when Squid is in daemon mode, just | |
1568 | * before the parent forks and starts up the child process. | |
1569 | * It can be used for admin-specific tasks, such as notifying | |
1570 | * someone that Squid is (re)started. | |
1571 | */ | |
1572 | static void | |
1573 | mainStartScript(const char *prog) | |
1574 | { | |
ef364f64 | 1575 | char script[MAXPATHLEN]; |
e18d7fdc | 1576 | char *t; |
1577 | size_t sl = 0; | |
1578 | pid_t cpid; | |
1579 | pid_t rpid; | |
1580 | xstrncpy(script, prog, MAXPATHLEN); | |
62e76326 | 1581 | |
e18d7fdc | 1582 | if ((t = strrchr(script, '/'))) { |
62e76326 | 1583 | *(++t) = '\0'; |
1584 | sl = strlen(script); | |
e18d7fdc | 1585 | } |
62e76326 | 1586 | |
e18d7fdc | 1587 | xstrncpy(&script[sl], squid_start_script, MAXPATHLEN - sl); |
62e76326 | 1588 | |
e18d7fdc | 1589 | if ((cpid = fork()) == 0) { |
62e76326 | 1590 | /* child */ |
f75662c9 | 1591 | execl(script, squid_start_script, (char *)NULL); |
482aa790 | 1592 | _exit(-1); |
e18d7fdc | 1593 | } else { |
62e76326 | 1594 | do { |
e18d7fdc | 1595 | #ifdef _SQUID_NEXT_ |
62e76326 | 1596 | union wait status; |
007d775d | 1597 | rpid = wait4(cpid, &status, 0, NULL); |
e18d7fdc | 1598 | #else |
62e76326 | 1599 | |
1600 | int status; | |
007d775d | 1601 | rpid = waitpid(cpid, &status, 0); |
e18d7fdc | 1602 | #endif |
62e76326 | 1603 | |
1604 | } while (rpid != cpid); | |
e18d7fdc | 1605 | } |
1606 | } | |
1607 | ||
a50bfe93 | 1608 | #endif /* _SQUID_MSWIN_ */ |
1609 | ||
efd900cb | 1610 | static int |
1611 | checkRunningPid(void) | |
1612 | { | |
b81949b9 | 1613 | // master process must start alone, but its kids processes may co-exist |
7de94c8c | 1614 | if (!IamMasterProcess()) |
b81949b9 AR |
1615 | return 0; |
1616 | ||
efd900cb | 1617 | pid_t pid; |
e0077312 | 1618 | |
1619 | if (!debug_log) | |
1620 | debug_log = stderr; | |
1621 | ||
efd900cb | 1622 | pid = readPidFile(); |
62e76326 | 1623 | |
efd900cb | 1624 | if (pid < 2) |
62e76326 | 1625 | return 0; |
1626 | ||
efd900cb | 1627 | if (kill(pid, 0) < 0) |
62e76326 | 1628 | return 0; |
1629 | ||
cb7a4fcb | 1630 | debugs(0, 0, "Squid is already running! Process ID " << pid); |
62e76326 | 1631 | |
efd900cb | 1632 | return 1; |
1633 | } | |
1634 | ||
f95b8144 | 1635 | static void |
bbe199dc | 1636 | watch_child(char *argv[]) |
f95b8144 | 1637 | { |
a50bfe93 | 1638 | #ifndef _SQUID_MSWIN_ |
f95b8144 | 1639 | char *prog; |
f95b8144 | 1640 | #ifdef _SQUID_NEXT_ |
62e76326 | 1641 | |
f95b8144 | 1642 | union wait status; |
1643 | #else | |
62e76326 | 1644 | |
f95b8144 | 1645 | int status; |
1646 | #endif | |
62e76326 | 1647 | |
e3a3b845 | 1648 | pid_t pid; |
c99c5397 | 1649 | #ifdef TIOCNOTTY |
1650 | ||
54f742e7 | 1651 | int i; |
c99c5397 | 1652 | #endif |
1653 | ||
742724a4 | 1654 | int nullfd; |
62e76326 | 1655 | |
7de94c8c | 1656 | if (!IamMasterProcess()) |
62e76326 | 1657 | return; |
1658 | ||
7dbca7a4 | 1659 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1660 | |
54f742e7 | 1661 | if ((pid = fork()) < 0) |
62e76326 | 1662 | syslog(LOG_ALERT, "fork failed: %s", xstrerror()); |
54f742e7 | 1663 | else if (pid > 0) |
62e76326 | 1664 | exit(0); |
1665 | ||
54f742e7 | 1666 | if (setsid() < 0) |
62e76326 | 1667 | syslog(LOG_ALERT, "setsid failed: %s", xstrerror()); |
1668 | ||
efd900cb | 1669 | closelog(); |
62e76326 | 1670 | |
54f742e7 | 1671 | #ifdef TIOCNOTTY |
62e76326 | 1672 | |
c4aefe96 | 1673 | if ((i = open("/dev/tty", O_RDWR | O_TEXT)) >= 0) { |
62e76326 | 1674 | ioctl(i, TIOCNOTTY, NULL); |
1675 | close(i); | |
54f742e7 | 1676 | } |
62e76326 | 1677 | |
54f742e7 | 1678 | #endif |
b05490a8 | 1679 | |
7f6ffd15 | 1680 | /* |
1681 | * RBCOLLINS - if cygwin stackdumps when squid is run without | |
1682 | * -N, check the cygwin1.dll version, it needs to be AT LEAST | |
1683 | * 1.1.3. execvp had a bit overflow error in a loop.. | |
1684 | */ | |
742724a4 | 1685 | /* Connect stdio to /dev/null in daemon mode */ |
4da086c4 | 1686 | nullfd = open(_PATH_DEVNULL, O_RDWR | O_TEXT); |
62e76326 | 1687 | |
e4a1325e | 1688 | if (nullfd < 0) |
4da086c4 | 1689 | fatalf(_PATH_DEVNULL " %s\n", xstrerror()); |
e4a1325e | 1690 | |
742724a4 | 1691 | dup2(nullfd, 0); |
62e76326 | 1692 | |
62493678 | 1693 | if (Debug::log_stderr < 0) { |
62e76326 | 1694 | dup2(nullfd, 1); |
1695 | dup2(nullfd, 2); | |
742724a4 | 1696 | } |
62e76326 | 1697 | |
13aeac35 AR |
1698 | if (Config.workers > 128) { |
1699 | syslog(LOG_ALERT, "Suspiciously high workers value: %d", | |
5667a628 | 1700 | Config.workers); |
007d775d | 1701 | // but we keep going in hope that user knows best |
5667a628 | 1702 | } |
095ec2b1 AR |
1703 | TheKids.init(); |
1704 | ||
f1eaa254 | 1705 | syslog(LOG_NOTICE, "XXX: will start %d kids", (int)TheKids.count()); |
007d775d AR |
1706 | |
1707 | // keep [re]starting kids until it is time to quit | |
f95b8144 | 1708 | for (;;) { |
62e76326 | 1709 | mainStartScript(argv[0]); |
1710 | ||
007d775d | 1711 | // start each kid that needs to be [re]started; once |
10cefb7b | 1712 | for (int i = TheKids.count() - 1; i >= 0; --i) { |
007d775d AR |
1713 | Kid& kid = TheKids.get(i); |
1714 | if (kid.hopeless() || kid.exitedHappy() || kid.running()) | |
1715 | continue; | |
1716 | ||
1717 | if ((pid = fork()) == 0) { | |
1718 | /* child */ | |
1719 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); | |
bc91a636 | 1720 | prog = argv[0]; |
007d775d AR |
1721 | argv[0] = const_cast<char*>(kid.name().termedBuf()); |
1722 | execvp(prog, argv); | |
1723 | syslog(LOG_ALERT, "execvp failed: %s", xstrerror()); | |
1724 | } | |
1725 | ||
1726 | kid.start(pid); | |
095ec2b1 AR |
1727 | syslog(LOG_NOTICE, "Squid Parent: %s process %d started", |
1728 | kid.name().termedBuf(), pid); | |
62e76326 | 1729 | } |
1730 | ||
1731 | /* parent */ | |
7dbca7a4 | 1732 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1733 | |
62e76326 | 1734 | squid_signal(SIGINT, SIG_IGN, SA_RESTART); |
1735 | ||
f95b8144 | 1736 | #ifdef _SQUID_NEXT_ |
62e76326 | 1737 | |
1738 | pid = wait3(&status, 0, NULL); | |
1739 | ||
f95b8144 | 1740 | #else |
62e76326 | 1741 | |
1742 | pid = waitpid(-1, &status, 0); | |
1743 | ||
007d775d | 1744 | #endif |
86b91dcd | 1745 | // Loop to collect all stopped kids before we go to sleep below. |
5667a628 | 1746 | do { |
007d775d AR |
1747 | Kid* kid = TheKids.find(pid); |
1748 | if (kid) { | |
1749 | kid->stop(status); | |
1750 | if (kid->calledExit()) { | |
1751 | syslog(LOG_NOTICE, | |
095ec2b1 AR |
1752 | "Squid Parent: %s process %d exited with status %d", |
1753 | kid->name().termedBuf(), | |
5667a628 | 1754 | kid->getPid(), kid->exitStatus()); |
007d775d AR |
1755 | } else if (kid->signaled()) { |
1756 | syslog(LOG_NOTICE, | |
095ec2b1 AR |
1757 | "Squid Parent: %s process %d exited due to signal %d with status %d", |
1758 | kid->name().termedBuf(), | |
5667a628 | 1759 | kid->getPid(), kid->termSignal(), kid->exitStatus()); |
007d775d | 1760 | } else { |
095ec2b1 AR |
1761 | syslog(LOG_NOTICE, "Squid Parent: %s process %d exited", |
1762 | kid->name().termedBuf(), kid->getPid()); | |
007d775d AR |
1763 | } |
1764 | } else { | |
1765 | syslog(LOG_NOTICE, "Squid Parent: unknown child process %d exited", pid); | |
1766 | } | |
1767 | #ifdef _SQUID_NEXT_ | |
1768 | } while ((pid = wait3(&status, WNOHANG, NULL)) > 0); | |
1769 | #else | |
5667a628 AR |
1770 | } |
1771 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0); | |
62e76326 | 1772 | #endif |
1773 | ||
007d775d AR |
1774 | if (TheKids.allExitedHappy()) { |
1775 | exit(0); | |
62e76326 | 1776 | } |
1777 | ||
007d775d | 1778 | if (TheKids.allHopeless()) { |
62e76326 | 1779 | syslog(LOG_ALERT, "Exiting due to repeated, frequent failures"); |
1780 | exit(1); | |
1781 | } | |
1782 | ||
007d775d AR |
1783 | if (TheKids.allSignaled(SIGKILL)) { |
1784 | exit(0); | |
1785 | } | |
06a0fbd3 | 1786 | |
007d775d AR |
1787 | if (TheKids.allSignaled(SIGINT) || TheKids.allSignaled(SIGTERM)) { |
1788 | syslog(LOG_ALERT, "Exiting due to unexpected forced shutdown"); | |
1789 | exit(1); | |
62e76326 | 1790 | } |
1791 | ||
1792 | squid_signal(SIGINT, SIG_DFL, SA_RESTART); | |
1793 | sleep(3); | |
f95b8144 | 1794 | } |
62e76326 | 1795 | |
bbe199dc | 1796 | /* NOTREACHED */ |
a50bfe93 | 1797 | #endif /* _SQUID_MSWIN_ */ |
a572d8be | 1798 | |
f95b8144 | 1799 | } |
fff6ad65 | 1800 | |
9ec1a1dc | 1801 | static void |
8ff3fa2e | 1802 | SquidShutdown() |
fff6ad65 | 1803 | { |
d71e4674 AR |
1804 | /* XXX: This function is called after the main loop has quit, which |
1805 | * means that no AsyncCalls would be called, including close handlers. | |
1806 | * TODO: We need to close/shut/free everything that needs calls before | |
1807 | * exiting the loop. | |
26ac0430 | 1808 | */ |
d71e4674 | 1809 | |
6c1962dd | 1810 | #if USE_WIN32_SERVICE |
1811 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1812 | #endif | |
1813 | ||
bf8fe701 | 1814 | debugs(1, 1, "Shutting down..."); |
95a83c22 | 1815 | #if USE_DNSSERVERS |
1816 | ||
1817 | dnsShutdown(); | |
1818 | #else | |
1819 | ||
1820 | idnsShutdown(); | |
1821 | #endif | |
95d2589c CT |
1822 | #if USE_SSL_CRTD |
1823 | Ssl::Helper::GetInstance()->Shutdown(); | |
1824 | #endif | |
95a83c22 | 1825 | redirectShutdown(); |
1826 | externalAclShutdown(); | |
d723bf6b | 1827 | icpConnectionClose(); |
1828 | #if USE_HTCP | |
62e76326 | 1829 | |
d723bf6b | 1830 | htcpSocketClose(); |
1831 | #endif | |
59ad6d31 | 1832 | #if SQUID_SNMP |
62e76326 | 1833 | |
d723bf6b | 1834 | snmpConnectionClose(); |
320e9f36 | 1835 | #endif |
eb824054 | 1836 | #if USE_WCCP |
62e76326 | 1837 | |
320e9f36 | 1838 | wccpConnectionClose(); |
d723bf6b | 1839 | #endif |
0b0cfcf2 | 1840 | #if USE_WCCPv2 |
1841 | ||
1842 | wccp2ConnectionClose(); | |
1843 | #endif | |
62e76326 | 1844 | |
fff6ad65 | 1845 | releaseServerSockets(); |
d723bf6b | 1846 | commCloseAllSockets(); |
79039294 AR |
1847 | |
1848 | #if USE_SQUID_ESI | |
1849 | Esi::Clean(); | |
1850 | #endif | |
1851 | ||
9a0a18de | 1852 | #if USE_DELAY_POOLS |
b67e2c8c | 1853 | DelayPools::FreePools(); |
515ec4dc | 1854 | #endif |
62e76326 | 1855 | |
0bcb6908 | 1856 | authenticateReset(); |
6c1962dd | 1857 | #if USE_WIN32_SERVICE |
1858 | ||
1859 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1860 | #endif | |
62e76326 | 1861 | |
c8f4eac4 | 1862 | Store::Root().sync(); /* Flush pending object writes/unlinks */ |
4d075ba0 | 1863 | #if USE_UNLINKD |
1864 | ||
1865 | unlinkdClose(); /* after sync/flush */ | |
1866 | #endif | |
fc68f6b1 | 1867 | |
fff6ad65 | 1868 | storeDirWriteCleanLogs(0); |
1869 | PrintRusage(); | |
1870 | dumpMallocStats(); | |
c8f4eac4 | 1871 | Store::Root().sync(); /* Flush log writes */ |
fff6ad65 | 1872 | storeLogClose(); |
1873 | accessLogClose(); | |
c8f4eac4 | 1874 | Store::Root().sync(); /* Flush log close */ |
59b2d47f | 1875 | StoreFileSystem::FreeAllFs(); |
b9ae18aa | 1876 | DiskIOModule::FreeAllModules(); |
afec404b | 1877 | #if LEAK_CHECK_MODE && 0 /* doesn't work at the moment */ |
62e76326 | 1878 | |
fff6ad65 | 1879 | configFreeMemory(); |
1880 | storeFreeMemory(); | |
33ab18e8 | 1881 | /*stmemFreeMemory(); */ |
fff6ad65 | 1882 | netdbFreeMemory(); |
1883 | ipcacheFreeMemory(); | |
1884 | fqdncacheFreeMemory(); | |
1885 | asnFreeMemory(); | |
26a369ba | 1886 | clientdbFreeMemory(); |
7021844c | 1887 | httpHeaderCleanModule(); |
d2db411c | 1888 | statFreeMemory(); |
f1fc2a8d | 1889 | eventFreeMemory(); |
c68e9c6b | 1890 | mimeFreeMemory(); |
1891 | errorClean(); | |
fff6ad65 | 1892 | #endif |
26a369ba | 1893 | #if !XMALLOC_TRACE |
62e76326 | 1894 | |
54f742e7 | 1895 | if (opt_no_daemon) { |
62e76326 | 1896 | file_close(0); |
1897 | file_close(1); | |
1898 | file_close(2); | |
54f742e7 | 1899 | } |
62e76326 | 1900 | |
33ab18e8 | 1901 | #endif |
fff6ad65 | 1902 | fdDumpOpen(); |
62e76326 | 1903 | |
236d1779 | 1904 | comm_exit(); |
62e76326 | 1905 | |
ddb43c58 | 1906 | memClean(); |
62e76326 | 1907 | |
33ab18e8 | 1908 | #if XMALLOC_TRACE |
62e76326 | 1909 | |
26a369ba | 1910 | xmalloc_find_leaks(); |
62e76326 | 1911 | |
bf8fe701 | 1912 | debugs(1, 0, "Memory used after shutdown: " << xmalloc_total); |
62e76326 | 1913 | |
33ab18e8 | 1914 | #endif |
36a97e19 | 1915 | #if MEM_GEN_TRACE |
62e76326 | 1916 | |
399e85ea | 1917 | log_trace_done(); |
62e76326 | 1918 | |
36a97e19 | 1919 | #endif |
62e76326 | 1920 | |
7de94c8c | 1921 | if (IamPrimaryProcess()) { |
a2c48c98 AR |
1922 | if (Config.pidFilename && strcmp(Config.pidFilename, "none") != 0) { |
1923 | enter_suid(); | |
1924 | safeunlink(Config.pidFilename, 0); | |
1925 | leave_suid(); | |
1926 | } | |
ab50ee9e | 1927 | } |
62e76326 | 1928 | |
bf8fe701 | 1929 | debugs(1, 1, "Squid Cache (Version " << version_string << "): Exiting normally."); |
62e76326 | 1930 | |
0cfa98cb | 1931 | /* |
1932 | * DPW 2006-10-23 | |
1933 | * We used to fclose(debug_log) here if it was set, but then | |
1934 | * we forgot to set it to NULL. That caused some coredumps | |
1935 | * because exit() ends up calling a bunch of destructors and | |
1936 | * such. So rather than forcing the debug_log to close, we'll | |
1937 | * leave it open so that those destructors can write some | |
1938 | * debugging if necessary. The file will be closed anyway when | |
1939 | * the process truly exits. | |
1940 | */ | |
62e76326 | 1941 | |
ae1feb30 | 1942 | exit(shutdown_status); |
fff6ad65 | 1943 | } |
bef81ea5 | 1944 |