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30a4f2a8 | 1 | /* |
262a0e14 | 2 | * $Id$ |
30a4f2a8 | 3 | * |
4 | * DEBUG: section 1 Startup and Main Loop | |
5 | * AUTHOR: Harvest Derived | |
6 | * | |
2b6662ba | 7 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 8 | * ---------------------------------------------------------- |
30a4f2a8 | 9 | * |
2b6662ba | 10 | * Squid is the result of efforts by numerous individuals from |
11 | * the Internet community; see the CONTRIBUTORS file for full | |
12 | * details. Many organizations have provided support for Squid's | |
13 | * development; see the SPONSORS file for full details. Squid is | |
14 | * Copyrighted (C) 2001 by the Regents of the University of | |
15 | * California; see the COPYRIGHT file for full details. Squid | |
16 | * incorporates software developed and/or copyrighted by other | |
17 | * sources; see the CREDITS file for full details. | |
30a4f2a8 | 18 | * |
19 | * This program is free software; you can redistribute it and/or modify | |
20 | * it under the terms of the GNU General Public License as published by | |
21 | * the Free Software Foundation; either version 2 of the License, or | |
22 | * (at your option) any later version. | |
26ac0430 | 23 | * |
30a4f2a8 | 24 | * This program is distributed in the hope that it will be useful, |
25 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
27 | * GNU General Public License for more details. | |
26ac0430 | 28 | * |
30a4f2a8 | 29 | * You should have received a copy of the GNU General Public License |
30 | * along with this program; if not, write to the Free Software | |
cbdec147 | 31 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 32 | * |
30a4f2a8 | 33 | */ |
44a47c6e | 34 | |
35 | #include "squid.h" | |
450e0c10 | 36 | #include "AccessLogEntry.h" |
3ad63615 | 37 | #include "auth/Gadgets.h" |
62ee09ca | 38 | #include "ConfigParser.h" |
aa839030 | 39 | #include "errorpage.h" |
a553a5a3 | 40 | #include "event.h" |
41 | #include "EventLoop.h" | |
62ee09ca | 42 | #include "ExternalACL.h" |
e6ccf245 | 43 | #include "Store.h" |
44 | #include "ICP.h" | |
5a7431b8 | 45 | #include "ident.h" |
528b2c61 | 46 | #include "HttpReply.h" |
62ee09ca | 47 | #include "pconn.h" |
528b2c61 | 48 | #include "Mem.h" |
3ad63615 AR |
49 | #include "acl/Asn.h" |
50 | #include "acl/Acl.h" | |
75faaa7a | 51 | #include "htcp.h" |
59b2d47f | 52 | #include "StoreFileSystem.h" |
b9ae18aa | 53 | #include "DiskIO/DiskIOModule.h" |
f900210a | 54 | #include "comm.h" |
62ee09ca | 55 | #if USE_EPOLL |
56 | #include "comm_epoll.h" | |
57 | #endif | |
58 | #if USE_KQUEUE | |
59 | #include "comm_kqueue.h" | |
60 | #endif | |
61 | #if USE_POLL | |
62 | #include "comm_poll.h" | |
63 | #endif | |
7cdb47bc | 64 | #if defined(USE_SELECT) || defined(USE_SELECT_WIN32) |
663c0a38 | 65 | #include "comm_select.h" |
66 | #endif | |
985c86bc | 67 | #include "SquidTime.h" |
c8f4eac4 | 68 | #include "SwapDir.h" |
b6b6f466 | 69 | #include "forward.h" |
d9e7ee1f | 70 | #include "MemPool.h" |
9b5c4a9a AJ |
71 | #include "icmp/IcmpSquid.h" |
72 | #include "icmp/net_db.h" | |
6e5db507 | 73 | #include "TextException.h" |
44a47c6e | 74 | |
57afc994 AR |
75 | #if USE_LOADABLE_MODULES |
76 | #include "LoadableModules.h" | |
77 | #endif | |
78 | ||
b958cb0f | 79 | #if ICAP_CLIENT |
26cc52cb | 80 | #include "adaptation/icap/Config.h" |
b958cb0f | 81 | #endif |
6e5db507 | 82 | #if USE_ECAP |
1f3c65fc | 83 | #include "adaptation/ecap/Config.h" |
6e5db507 | 84 | #endif |
b958cb0f AR |
85 | #if USE_ADAPTATION |
86 | #include "adaptation/Config.h" | |
87 | #endif | |
88 | ||
79039294 AR |
89 | #if USE_SQUID_ESI |
90 | #include "esi/Module.h" | |
91 | #endif | |
92 | ||
1a774556 | 93 | #if USE_WIN32_SERVICE |
94 | ||
95 | #include "squid_windows.h" | |
96 | #include <process.h> | |
97 | ||
98 | static int opt_install_service = FALSE; | |
99 | static int opt_remove_service = FALSE; | |
100 | static int opt_signal_service = FALSE; | |
101 | static int opt_command_line = FALSE; | |
102 | extern void WIN32_svcstatusupdate(DWORD, DWORD); | |
103 | void WINAPI WIN32_svcHandler(DWORD); | |
104 | ||
105 | #endif | |
106 | ||
63be0a78 | 107 | /** for error reporting from xmalloc and friends */ |
b293c4d8 | 108 | SQUIDCEXTERN void (*failure_notify) (const char *); |
30a4f2a8 | 109 | |
e13ee7ad | 110 | static int opt_parse_cfg_only = 0; |
5e6d4736 | 111 | static char *opt_syslog_facility = NULL; |
30a4f2a8 | 112 | static int icpPortNumOverride = 1; /* Want to detect "-u 0" */ |
e13ee7ad | 113 | static int configured_once = 0; |
30a4f2a8 | 114 | #if MALLOC_DBG |
4d64d74a | 115 | static int malloc_debug_level = 0; |
30a4f2a8 | 116 | #endif |
5cd39a10 | 117 | static volatile int do_reconfigure = 0; |
118 | static volatile int do_rotate = 0; | |
2681d383 | 119 | static volatile int do_shutdown = 0; |
ae1feb30 | 120 | static volatile int shutdown_status = 0; |
4d7add01 | 121 | |
5cd39a10 | 122 | static void mainRotate(void); |
d71e4674 AR |
123 | static void mainReconfigureStart(void); |
124 | static void mainReconfigureFinish(void*); | |
f5b8bbc4 | 125 | static void mainInitialize(void); |
f5b8bbc4 | 126 | static void usage(void); |
63be0a78 | 127 | static void mainParseOptions(int argc, char *argv[]); |
f5b8bbc4 | 128 | static void sendSignal(void); |
129 | static void serverConnectionsOpen(void); | |
d71e4674 | 130 | static void serverConnectionsClose(void); |
bbe199dc | 131 | static void watch_child(char **); |
85407535 | 132 | static void setEffectiveUser(void); |
36a97e19 | 133 | #if MEM_GEN_TRACE |
134 | extern void log_trace_done(); | |
135 | extern void log_trace_init(char *); | |
136 | #endif | |
8ff3fa2e | 137 | static void SquidShutdown(void); |
b6a2f15e | 138 | static void mainSetCwd(void); |
efd900cb | 139 | static int checkRunningPid(void); |
85407535 | 140 | |
b293c4d8 | 141 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 142 | static const char *squid_start_script = "squid_start"; |
b293c4d8 | 143 | #endif |
e18d7fdc | 144 | |
9bc73deb | 145 | #if TEST_ACCESS |
146 | #include "test_access.c" | |
147 | #endif | |
148 | ||
63be0a78 | 149 | /** temporary thunk across to the unrefactored store interface */ |
8ff3fa2e | 150 | |
151 | class StoreRootEngine : public AsyncEngine | |
152 | { | |
153 | ||
154 | public: | |
26ac0430 | 155 | int checkEvents(int timeout) { |
8ff3fa2e | 156 | Store::Root().callback(); |
157 | return EVENT_IDLE; | |
158 | }; | |
159 | }; | |
160 | ||
9688b0ae | 161 | class SignalEngine: public AsyncEngine |
a553a5a3 | 162 | { |
163 | ||
164 | public: | |
9688b0ae | 165 | SignalEngine(EventLoop &loop) : loop(loop) {} |
166 | virtual int checkEvents(int timeout); | |
a553a5a3 | 167 | |
168 | private: | |
26ac0430 | 169 | static void StopEventLoop(void * data) { |
9688b0ae | 170 | static_cast<SignalEngine *>(data)->loop.stop(); |
a553a5a3 | 171 | } |
172 | ||
9688b0ae | 173 | void doShutdown(time_t wait); |
174 | ||
a553a5a3 | 175 | EventLoop &loop; |
176 | }; | |
177 | ||
9688b0ae | 178 | int |
179 | SignalEngine::checkEvents(int timeout) | |
a553a5a3 | 180 | { |
9688b0ae | 181 | PROF_start(SignalEngine_checkEvents); |
fc68f6b1 | 182 | |
a553a5a3 | 183 | if (do_reconfigure) { |
d71e4674 | 184 | mainReconfigureStart(); |
a553a5a3 | 185 | do_reconfigure = 0; |
a553a5a3 | 186 | } else if (do_rotate) { |
187 | mainRotate(); | |
188 | do_rotate = 0; | |
189 | } else if (do_shutdown) { | |
9688b0ae | 190 | doShutdown(do_shutdown > 0 ? (int) Config.shutdownLifetime : 0); |
a553a5a3 | 191 | do_shutdown = 0; |
26ac0430 | 192 | } |
a553a5a3 | 193 | |
9688b0ae | 194 | PROF_stop(SignalEngine_checkEvents); |
195 | return EVENT_IDLE; | |
196 | } | |
a553a5a3 | 197 | |
9688b0ae | 198 | void |
199 | SignalEngine::doShutdown(time_t wait) | |
200 | { | |
201 | debugs(1, 1, "Preparing for shutdown after " << statCounter.client_http.requests << " requests"); | |
202 | debugs(1, 1, "Waiting " << wait << " seconds for active connections to finish"); | |
8ff3fa2e | 203 | |
9688b0ae | 204 | shutting_down = 1; |
205 | ||
206 | #if USE_WIN32_SERVICE | |
207 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, (wait + 1) * 1000); | |
208 | #endif | |
209 | ||
210 | serverConnectionsClose(); | |
211 | eventAdd("SquidShutdown", &StopEventLoop, this, (double) (wait + 1), 1, false); | |
a553a5a3 | 212 | } |
213 | ||
b8d8561b | 214 | static void |
0673c0ba | 215 | usage(void) |
ccff9601 | 216 | { |
0ee4272b | 217 | fprintf(stderr, |
0e657244 | 218 | #if USE_WIN32_SERVICE |
8eb28163 | 219 | "Usage: %s [-cdhirvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal] [-n name] [-O CommandLine]\n" |
0e657244 | 220 | #else |
8eb28163 | 221 | "Usage: %s [-cdhvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal]\n" |
0e657244 | 222 | #endif |
62e76326 | 223 | " -a port Specify HTTP port number (default: %d).\n" |
224 | " -d level Write debugging to stderr also.\n" | |
225 | " -f file Use given config-file instead of\n" | |
226 | " %s\n" | |
227 | " -h Print help message.\n" | |
0e657244 | 228 | #if USE_WIN32_SERVICE |
229 | " -i Installs as a Windows Service (see -n option).\n" | |
230 | #endif | |
62e76326 | 231 | " -k reconfigure|rotate|shutdown|interrupt|kill|debug|check|parse\n" |
232 | " Parse configuration file, then send signal to \n" | |
233 | " running copy (except -k parse) and exit.\n" | |
0e657244 | 234 | #if USE_WIN32_SERVICE |
235 | " -n name Specify Windows Service name to use for service operations\n" | |
236 | " default is: " _WIN_SQUID_DEFAULT_SERVICE_NAME ".\n" | |
237 | " -r Removes a Windows Service (see -n option).\n" | |
238 | #endif | |
5e6d4736 | 239 | " -s | -l facility\n" |
240 | " Enable logging to syslog.\n" | |
62e76326 | 241 | " -u port Specify ICP port number (default: %d), disable with 0.\n" |
242 | " -v Print version.\n" | |
243 | " -z Create swap directories\n" | |
244 | " -C Do not catch fatal signals.\n" | |
8eb28163 | 245 | " -D OBSOLETE. Scheduled for removal.\n" |
62e76326 | 246 | " -F Don't serve any requests until store is rebuilt.\n" |
247 | " -N No daemon mode.\n" | |
0e657244 | 248 | #if USE_WIN32_SERVICE |
249 | " -O options\n" | |
250 | " Set Windows Service Command line options in Registry.\n" | |
251 | #endif | |
62e76326 | 252 | " -R Do not set REUSEADDR on port.\n" |
253 | " -S Double-check swap during rebuild.\n" | |
62e76326 | 254 | " -X Force full debugging.\n" |
255 | " -Y Only return UDP_HIT or UDP_MISS_NOFETCH during fast reload.\n", | |
7dbca7a4 | 256 | APP_SHORTNAME, CACHE_HTTP_PORT, DefaultConfigFile, CACHE_ICP_PORT); |
77ffc99f | 257 | exit(1); |
ccff9601 | 258 | } |
259 | ||
63be0a78 | 260 | /** |
261 | * Parse the parameters received via command line interface. | |
262 | * | |
d85b8894 AJ |
263 | \param argc Number of options received on command line |
264 | \param argv List of parameters received on command line | |
63be0a78 | 265 | */ |
b8d8561b | 266 | static void |
267 | mainParseOptions(int argc, char *argv[]) | |
090089c4 | 268 | { |
090089c4 | 269 | extern char *optarg; |
4d64d74a | 270 | int c; |
090089c4 | 271 | |
0e657244 | 272 | #if USE_WIN32_SERVICE |
5e6d4736 | 273 | while ((c = getopt(argc, argv, "CDFNO:RSVYXa:d:f:hik:m::n:rsl:u:vz?")) != -1) |
0e657244 | 274 | #else |
05f1c52c | 275 | while ((c = getopt(argc, argv, "CDFNRSYXa:d:f:hk:m::sl:u:vz?")) != -1) |
0e657244 | 276 | #endif |
9b7292ce | 277 | { |
278 | ||
26ac0430 | 279 | switch (c) { |
62e76326 | 280 | |
281 | case 'C': | |
63be0a78 | 282 | /** \par C |
283 | * Unset/disabel global option for catchign signals. opt_catch_signals */ | |
62e76326 | 284 | opt_catch_signals = 0; |
285 | break; | |
286 | ||
287 | case 'D': | |
63be0a78 | 288 | /** \par D |
8eb28163 AJ |
289 | * OBSOLETE: WAS: override to prevent optional startup DNS tests. */ |
290 | debugs(1,DBG_CRITICAL, "WARNING: -D command-line option is obsolete."); | |
62e76326 | 291 | break; |
292 | ||
293 | case 'F': | |
63be0a78 | 294 | /** \par F |
295 | * Set global option for foreground rebuild. opt_foreground_rebuild */ | |
62e76326 | 296 | opt_foreground_rebuild = 1; |
297 | break; | |
298 | ||
299 | case 'N': | |
63be0a78 | 300 | /** \par N |
301 | * Set global option for 'no_daemon' mode. opt_no_daemon */ | |
62e76326 | 302 | opt_no_daemon = 1; |
303 | break; | |
63be0a78 | 304 | |
0e657244 | 305 | #if USE_WIN32_SERVICE |
306 | ||
307 | case 'O': | |
63be0a78 | 308 | /** \par O |
309 | * Set global option. opt_command_lin and WIN32_Command_Line */ | |
0e657244 | 310 | opt_command_line = 1; |
311 | WIN32_Command_Line = xstrdup(optarg); | |
312 | break; | |
313 | #endif | |
62e76326 | 314 | |
315 | case 'R': | |
63be0a78 | 316 | /** \par R |
317 | * Unset/disable global option opt_reuseaddr */ | |
62e76326 | 318 | opt_reuseaddr = 0; |
319 | break; | |
320 | ||
321 | case 'S': | |
63be0a78 | 322 | /** \par S |
323 | * Set global option opt_store_doublecheck */ | |
62e76326 | 324 | opt_store_doublecheck = 1; |
325 | break; | |
326 | ||
62e76326 | 327 | case 'X': |
63be0a78 | 328 | /** \par X |
329 | * Force full debugging */ | |
37296f4c | 330 | Debug::parseOptions("debug_options ALL,9"); |
331 | Config.onoff.debug_override_X = 1; | |
62e76326 | 332 | sigusr2_handle(SIGUSR2); |
62e76326 | 333 | break; |
334 | ||
335 | case 'Y': | |
63be0a78 | 336 | /** \par Y |
337 | * Set global option opt_reload_hit_only */ | |
62e76326 | 338 | opt_reload_hit_only = 1; |
62e76326 | 339 | break; |
340 | ||
0e657244 | 341 | #if USE_WIN32_SERVICE |
342 | ||
343 | case 'i': | |
63be0a78 | 344 | /** \par i |
345 | * Set global option opt_install_service (to TRUE) */ | |
0e657244 | 346 | opt_install_service = TRUE; |
0e657244 | 347 | break; |
0e657244 | 348 | #endif |
349 | ||
62e76326 | 350 | case 'a': |
63be0a78 | 351 | /** \par a |
352 | * Add optional HTTP port as given following the option */ | |
62e76326 | 353 | add_http_port(optarg); |
62e76326 | 354 | break; |
355 | ||
356 | case 'd': | |
63be0a78 | 357 | /** \par d |
358 | * Set global option opt_debug_stderr to the number given follwoign the option */ | |
62e76326 | 359 | opt_debug_stderr = atoi(optarg); |
62e76326 | 360 | break; |
361 | ||
362 | case 'f': | |
63be0a78 | 363 | /** \par f |
364 | * Load the file given instead of the default squid.conf. */ | |
62e76326 | 365 | xfree(ConfigFile); |
62e76326 | 366 | ConfigFile = xstrdup(optarg); |
62e76326 | 367 | break; |
368 | ||
369 | case 'k': | |
63be0a78 | 370 | /** \par k |
371 | * Run the administrative action given following the option */ | |
fc68f6b1 | 372 | |
63be0a78 | 373 | /** \li When its an unknown option display the usage help. */ |
62e76326 | 374 | if ((int) strlen(optarg) < 1) |
375 | usage(); | |
376 | ||
377 | if (!strncmp(optarg, "reconfigure", strlen(optarg))) | |
63be0a78 | 378 | /** \li On reconfigure send SIGHUP. */ |
62e76326 | 379 | opt_send_signal = SIGHUP; |
380 | else if (!strncmp(optarg, "rotate", strlen(optarg))) | |
63be0a78 | 381 | /** \li On rotate send SIGQUIT or SIGUSR1. */ |
7e7a0442 | 382 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 383 | |
384 | opt_send_signal = SIGQUIT; | |
385 | ||
e3175d1f | 386 | #else |
62e76326 | 387 | |
388 | opt_send_signal = SIGUSR1; | |
389 | ||
e3175d1f | 390 | #endif |
62e76326 | 391 | |
392 | else if (!strncmp(optarg, "debug", strlen(optarg))) | |
63be0a78 | 393 | /** \li On debug send SIGTRAP or SIGUSR2. */ |
7e7a0442 | 394 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 395 | |
396 | opt_send_signal = SIGTRAP; | |
397 | ||
e3175d1f | 398 | #else |
62e76326 | 399 | |
400 | opt_send_signal = SIGUSR2; | |
401 | ||
402 | #endif | |
403 | ||
404 | else if (!strncmp(optarg, "shutdown", strlen(optarg))) | |
63be0a78 | 405 | /** \li On shutdown send SIGTERM. */ |
62e76326 | 406 | opt_send_signal = SIGTERM; |
407 | else if (!strncmp(optarg, "interrupt", strlen(optarg))) | |
63be0a78 | 408 | /** \li On interrupt send SIGINT. */ |
62e76326 | 409 | opt_send_signal = SIGINT; |
410 | else if (!strncmp(optarg, "kill", strlen(optarg))) | |
63be0a78 | 411 | /** \li On kill send SIGKILL. */ |
62e76326 | 412 | opt_send_signal = SIGKILL; |
ae1feb30 | 413 | |
414 | #ifdef SIGTTIN | |
415 | ||
416 | else if (!strncmp(optarg, "restart", strlen(optarg))) | |
63be0a78 | 417 | /** \li On restart send SIGTTIN. (exit and restart by parent) */ |
418 | opt_send_signal = SIGTTIN; | |
ae1feb30 | 419 | |
420 | #endif | |
421 | ||
62e76326 | 422 | else if (!strncmp(optarg, "check", strlen(optarg))) |
63be0a78 | 423 | /** \li On check send 0 / SIGNULL. */ |
62e76326 | 424 | opt_send_signal = 0; /* SIGNULL */ |
425 | else if (!strncmp(optarg, "parse", strlen(optarg))) | |
63be0a78 | 426 | /** \li On parse set global flag to re-parse the config file only. */ |
427 | opt_parse_cfg_only = 1; | |
62e76326 | 428 | else |
429 | usage(); | |
430 | ||
431 | break; | |
432 | ||
433 | case 'm': | |
63be0a78 | 434 | /** \par m |
435 | * Set global malloc_debug_level to the value given following the option. | |
436 | * if none is given it toggles the xmalloc_trace option on/off */ | |
62e76326 | 437 | if (optarg) { |
30a4f2a8 | 438 | #if MALLOC_DBG |
fc68f6b1 | 439 | malloc_debug_level = atoi(optarg); |
30a4f2a8 | 440 | #else |
fc68f6b1 | 441 | fatal("Need to add -DMALLOC_DBG when compiling to use -mX option"); |
33ab18e8 | 442 | #endif |
62e76326 | 443 | |
444 | } else { | |
33ab18e8 | 445 | #if XMALLOC_TRACE |
62e76326 | 446 | xmalloc_trace = !xmalloc_trace; |
33ab18e8 | 447 | #else |
62e76326 | 448 | fatal("Need to configure --enable-xmalloc-debug-trace to use -m option"); |
30a4f2a8 | 449 | #endif |
62e76326 | 450 | } |
d9e7ee1f | 451 | break; |
d9e7ee1f | 452 | |
0e657244 | 453 | #if USE_WIN32_SERVICE |
454 | ||
455 | case 'n': | |
63be0a78 | 456 | /** \par n |
457 | * Set global option opt_signal_service (to TRUE). | |
458 | * Stores the additional parameter given in global WIN32_Service_name */ | |
0e657244 | 459 | xfree(WIN32_Service_name); |
460 | ||
461 | WIN32_Service_name = xstrdup(optarg); | |
462 | ||
463 | opt_signal_service = TRUE; | |
464 | ||
465 | break; | |
466 | ||
467 | case 'r': | |
63be0a78 | 468 | /** \par r |
469 | * Set global option opt_remove_service (to TRUE) */ | |
0e657244 | 470 | opt_remove_service = TRUE; |
471 | ||
472 | break; | |
473 | ||
474 | #endif | |
475 | ||
5e6d4736 | 476 | case 'l': |
63be0a78 | 477 | /** \par l |
478 | * Stores the syslog facility name in global opt_syslog_facility | |
479 | * then performs actions for -s option. */ | |
5e6d4736 | 480 | opt_syslog_facility = xstrdup(optarg); |
481 | ||
62e76326 | 482 | case 's': |
63be0a78 | 483 | /** \par s |
484 | * Initialize the syslog for output */ | |
c307aec3 | 485 | #if HAVE_SYSLOG |
62e76326 | 486 | |
5e6d4736 | 487 | _db_set_syslog(opt_syslog_facility); |
0e657244 | 488 | |
62e76326 | 489 | break; |
0e657244 | 490 | |
c307aec3 | 491 | #else |
62e76326 | 492 | |
493 | fatal("Logging to syslog not available on this platform"); | |
0e657244 | 494 | |
62e76326 | 495 | /* NOTREACHED */ |
496 | #endif | |
497 | ||
498 | case 'u': | |
63be0a78 | 499 | /** \par u |
500 | * Store the ICP port number given in global option icpPortNumOverride | |
501 | * ensuring its a positive number. */ | |
62e76326 | 502 | icpPortNumOverride = atoi(optarg); |
503 | ||
504 | if (icpPortNumOverride < 0) | |
505 | icpPortNumOverride = 0; | |
506 | ||
507 | break; | |
508 | ||
509 | case 'v': | |
63be0a78 | 510 | /** \par v |
511 | * Display squid version and build information. Then exit. */ | |
62e76326 | 512 | printf("Squid Cache: Version %s\nconfigure options: %s\n", version_string, SQUID_CONFIGURE_OPTIONS); |
513 | ||
1a774556 | 514 | #if USE_WIN32_SERVICE |
515 | ||
516 | printf("Compiled as Windows System Service.\n"); | |
517 | ||
518 | #endif | |
519 | ||
62e76326 | 520 | exit(0); |
521 | ||
522 | /* NOTREACHED */ | |
523 | ||
524 | case 'z': | |
63be0a78 | 525 | /** \par z |
526 | * Set global option opt_debug_stderr and opt_create_swap_dirs */ | |
930dea4a | 527 | opt_debug_stderr = 1; |
528 | ||
62e76326 | 529 | opt_create_swap_dirs = 1; |
530 | ||
531 | break; | |
532 | ||
63be0a78 | 533 | case 'h': |
534 | ||
62e76326 | 535 | case '?': |
536 | ||
537 | default: | |
63be0a78 | 538 | /** \par h,?, or unknown |
539 | * \copydoc usage() */ | |
62e76326 | 540 | usage(); |
541 | ||
542 | break; | |
543 | } | |
9b7292ce | 544 | |
090089c4 | 545 | } |
4d64d74a | 546 | } |
090089c4 | 547 | |
7a2f978b | 548 | /* ARGSUSED */ |
b293c4d8 | 549 | void |
9b7292ce | 550 | rotate_logs(int sig) |
551 | { | |
5cd39a10 | 552 | do_rotate = 1; |
a50bfe93 | 553 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 554 | #if !HAVE_SIGACTION |
62e76326 | 555 | |
30a4f2a8 | 556 | signal(sig, rotate_logs); |
557 | #endif | |
a50bfe93 | 558 | #endif |
30a4f2a8 | 559 | } |
560 | ||
7a2f978b | 561 | /* ARGSUSED */ |
b293c4d8 | 562 | void |
9b7292ce | 563 | reconfigure(int sig) |
564 | { | |
5cd39a10 | 565 | do_reconfigure = 1; |
a50bfe93 | 566 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 567 | #if !HAVE_SIGACTION |
62e76326 | 568 | |
30a4f2a8 | 569 | signal(sig, reconfigure); |
570 | #endif | |
a50bfe93 | 571 | #endif |
30a4f2a8 | 572 | } |
573 | ||
b8d8561b | 574 | void |
9b7292ce | 575 | shut_down(int sig) |
576 | { | |
2681d383 | 577 | do_shutdown = sig == SIGINT ? -1 : 1; |
ae1feb30 | 578 | #ifdef SIGTTIN |
579 | ||
580 | if (SIGTTIN == sig) | |
581 | shutdown_status = 1; | |
582 | ||
583 | #endif | |
a50bfe93 | 584 | #ifndef _SQUID_MSWIN_ |
cadc2d55 | 585 | #ifdef KILL_PARENT_OPT |
62e76326 | 586 | |
5cd39a10 | 587 | if (getppid() > 1) { |
36584579 | 588 | debugs(1, 1, "Killing RunCache, pid " << getppid()); |
62e76326 | 589 | |
590 | if (kill(getppid(), sig) < 0) | |
36584579 | 591 | debugs(1, 1, "kill " << getppid() << ": " << xstrerror()); |
88738790 | 592 | } |
62e76326 | 593 | |
cadc2d55 | 594 | #endif |
6e40f263 | 595 | #if SA_RESETHAND == 0 |
596 | signal(SIGTERM, SIG_DFL); | |
62e76326 | 597 | |
6e40f263 | 598 | signal(SIGINT, SIG_DFL); |
62e76326 | 599 | |
a50bfe93 | 600 | #endif |
6e40f263 | 601 | #endif |
30a4f2a8 | 602 | } |
603 | ||
24382924 | 604 | static void |
9b7292ce | 605 | serverConnectionsOpen(void) |
606 | { | |
d193a436 | 607 | clientOpenListenSockets(); |
15df8349 | 608 | icpConnectionsOpen(); |
ace287ee | 609 | #if USE_HTCP |
62e76326 | 610 | |
ace287ee | 611 | htcpInit(); |
612 | #endif | |
678c6099 | 613 | #ifdef SQUID_SNMP |
62e76326 | 614 | |
3265e68d | 615 | snmpConnectionOpen(); |
320e9f36 | 616 | #endif |
eb824054 | 617 | #if USE_WCCP |
62e76326 | 618 | |
320e9f36 | 619 | wccpConnectionOpen(); |
2bbd722b | 620 | #endif |
62e76326 | 621 | |
0b0cfcf2 | 622 | #if USE_WCCPv2 |
623 | ||
624 | wccp2ConnectionOpen(); | |
625 | #endif | |
626 | ||
5ecceaa4 | 627 | clientdbInit(); |
cc192b50 | 628 | icmpEngine.Open(); |
67508012 | 629 | netdbInit(); |
f899fac1 | 630 | asnInit(); |
b0dd28ba | 631 | ACL::Initialize(); |
85034133 | 632 | peerSelectInit(); |
62e76326 | 633 | |
afd88fbe | 634 | carpInit(); |
f7e1d9ce HN |
635 | peerUserHashInit(); |
636 | peerSourceHashInit(); | |
5f3f8d0e | 637 | } |
638 | ||
d71e4674 | 639 | static void |
9b7292ce | 640 | serverConnectionsClose(void) |
641 | { | |
0a5a8601 | 642 | assert(shutting_down || reconfiguring); |
c0fbae16 | 643 | clientHttpConnectionsClose(); |
17e6c0a1 | 644 | icpConnectionShutdown(); |
72549e05 | 645 | #if USE_HTCP |
62e76326 | 646 | |
72549e05 | 647 | htcpSocketShutdown(); |
648 | #endif | |
62e76326 | 649 | |
cc192b50 | 650 | icmpEngine.Close(); |
15df8349 | 651 | #ifdef SQUID_SNMP |
62e76326 | 652 | |
17e6c0a1 | 653 | snmpConnectionShutdown(); |
320e9f36 | 654 | #endif |
eb824054 | 655 | #if USE_WCCP |
62e76326 | 656 | |
0b0cfcf2 | 657 | wccpConnectionClose(); |
658 | #endif | |
659 | #if USE_WCCPv2 | |
660 | ||
661 | wccp2ConnectionClose(); | |
15df8349 | 662 | #endif |
62e76326 | 663 | |
4bac8de8 | 664 | asnFreeMemory(); |
5f3f8d0e | 665 | } |
666 | ||
b8d8561b | 667 | static void |
d71e4674 | 668 | mainReconfigureStart(void) |
9b7292ce | 669 | { |
bf8fe701 | 670 | debugs(1, 1, "Reconfiguring Squid Cache (version " << version_string << ")..."); |
5cd39a10 | 671 | reconfiguring = 1; |
d71e4674 AR |
672 | |
673 | // Initiate asynchronous closing sequence | |
15df8349 | 674 | serverConnectionsClose(); |
17e6c0a1 | 675 | icpConnectionClose(); |
72549e05 | 676 | #if USE_HTCP |
62e76326 | 677 | |
72549e05 | 678 | htcpSocketClose(); |
679 | #endif | |
17e6c0a1 | 680 | #ifdef SQUID_SNMP |
62e76326 | 681 | |
17e6c0a1 | 682 | snmpConnectionClose(); |
320e9f36 | 683 | #endif |
3c573763 | 684 | #if USE_DNSSERVERS |
62e76326 | 685 | |
74addf6c | 686 | dnsShutdown(); |
3c573763 | 687 | #else |
62e76326 | 688 | |
7b724b86 | 689 | idnsShutdown(); |
eb824054 | 690 | #endif |
62e76326 | 691 | |
74addf6c | 692 | redirectShutdown(); |
693 | authenticateShutdown(); | |
d9572179 | 694 | externalAclShutdown(); |
2db68ce5 | 695 | storeDirCloseSwapLogs(); |
2e923080 | 696 | storeLogClose(); |
697 | accessLogClose(); | |
698 | useragentLogClose(); | |
699 | refererCloseLog(); | |
d71e4674 AR |
700 | |
701 | eventAdd("mainReconfigureFinish", &mainReconfigureFinish, NULL, 0, 1, | |
26ac0430 | 702 | false); |
d71e4674 AR |
703 | } |
704 | ||
705 | static void | |
26ac0430 AJ |
706 | mainReconfigureFinish(void *) |
707 | { | |
d71e4674 AR |
708 | debugs(1, 3, "finishing reconfiguring"); |
709 | ||
c68e9c6b | 710 | errorClean(); |
3aa4adbc | 711 | enter_suid(); /* root to read config file */ |
dd9b1081 | 712 | parseConfigFile(ConfigFile); |
c642c141 | 713 | setUmask(Config.umask); |
97244680 | 714 | Mem::Report(); |
3aa4adbc | 715 | setEffectiveUser(); |
b6f794d6 | 716 | _db_init(Config.Log.log, Config.debugOptions); |
429fdbec | 717 | ipcache_restart(); /* clear stuck entries */ |
94439e4e | 718 | authenticateUserCacheRestart(); /* clear stuck ACL entries */ |
429fdbec | 719 | fqdncache_restart(); /* sigh, fqdncache too */ |
0e70aa1e | 720 | parseEtcHosts(); |
53ad48e6 | 721 | errorInitialize(); /* reload error pages */ |
2e923080 | 722 | accessLogInit(); |
723 | storeLogOpen(); | |
724 | useragentOpenLog(); | |
725 | refererOpenLog(); | |
3c573763 | 726 | #if USE_DNSSERVERS |
62e76326 | 727 | |
74addf6c | 728 | dnsInit(); |
3c573763 | 729 | #else |
62e76326 | 730 | |
7b724b86 | 731 | idnsInit(); |
eb824054 | 732 | #endif |
62e76326 | 733 | |
74addf6c | 734 | redirectInit(); |
e6ccf245 | 735 | authenticateInit(&Config.authConfiguration); |
d9572179 | 736 | externalAclInit(); |
1f38f50a | 737 | #if USE_WCCP |
62e76326 | 738 | |
1f38f50a | 739 | wccpInit(); |
740 | #endif | |
0b0cfcf2 | 741 | #if USE_WCCPv2 |
742 | ||
743 | wccp2Init(); | |
744 | #endif | |
62e76326 | 745 | |
0ffd22bc | 746 | serverConnectionsOpen(); |
9c2e9b50 | 747 | |
3ee2b4f8 | 748 | neighbors_init(); |
9c2e9b50 | 749 | |
2db68ce5 | 750 | storeDirOpenSwapLogs(); |
9c2e9b50 | 751 | |
9c021a38 | 752 | mimeInit(Config.mimeTablePathname); |
9c2e9b50 | 753 | |
926375e6 | 754 | if (Config.onoff.announce) { |
755 | if (!eventFind(start_announce, NULL)) | |
756 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
757 | } else { | |
758 | if (eventFind(start_announce, NULL)) | |
759 | eventDelete(start_announce, NULL); | |
760 | } | |
761 | ||
b8890359 | 762 | writePidFile(); /* write PID file */ |
9c2e9b50 | 763 | |
bf8fe701 | 764 | debugs(1, 1, "Ready to serve requests."); |
9c2e9b50 | 765 | |
5cd39a10 | 766 | reconfiguring = 0; |
767 | } | |
768 | ||
769 | static void | |
9b7292ce | 770 | mainRotate(void) |
771 | { | |
cc192b50 | 772 | icmpEngine.Close(); |
3c573763 | 773 | #if USE_DNSSERVERS |
62e76326 | 774 | |
e40aa8da | 775 | dnsShutdown(); |
3c573763 | 776 | #endif |
62e76326 | 777 | |
e40aa8da | 778 | redirectShutdown(); |
779 | authenticateShutdown(); | |
d9572179 | 780 | externalAclShutdown(); |
5cd39a10 | 781 | _db_rotate_log(); /* cache.log */ |
782 | storeDirWriteCleanLogs(1); | |
783 | storeLogRotate(); /* store.log */ | |
784 | accessLogRotate(); /* access.log */ | |
785 | useragentRotateLog(); /* useragent.log */ | |
fd2c5549 | 786 | refererRotateLog(); /* referer.log */ |
225644d7 | 787 | #if WIP_FWD_LOG |
62e76326 | 788 | |
225644d7 | 789 | fwdLogRotate(); |
790 | #endif | |
62e76326 | 791 | |
cc192b50 | 792 | icmpEngine.Open(); |
3c573763 | 793 | #if USE_DNSSERVERS |
62e76326 | 794 | |
e40aa8da | 795 | dnsInit(); |
3c573763 | 796 | #endif |
62e76326 | 797 | |
e40aa8da | 798 | redirectInit(); |
e6ccf245 | 799 | authenticateInit(&Config.authConfiguration); |
d9572179 | 800 | externalAclInit(); |
5f3f8d0e | 801 | } |
802 | ||
067bea91 | 803 | static void |
9b7292ce | 804 | setEffectiveUser(void) |
805 | { | |
fc68f6b1 | 806 | keepCapabilities(); |
85407535 | 807 | leave_suid(); /* Run as non privilegied user */ |
cd377065 | 808 | #ifdef _SQUID_OS2_ |
62e76326 | 809 | |
cd377065 | 810 | return; |
811 | #endif | |
62e76326 | 812 | |
85407535 | 813 | if (geteuid() == 0) { |
bf8fe701 | 814 | debugs(0, 0, "Squid is not safe to run as root! If you must"); |
815 | debugs(0, 0, "start Squid as root, then you must configure"); | |
816 | debugs(0, 0, "it to run as a non-priveledged user with the"); | |
817 | debugs(0, 0, "'cache_effective_user' option in the config file."); | |
62e76326 | 818 | fatal("Don't run Squid as root, set 'cache_effective_user'!"); |
85407535 | 819 | } |
820 | } | |
821 | ||
b6a2f15e | 822 | static void |
9b7292ce | 823 | mainSetCwd(void) |
824 | { | |
4a504376 | 825 | char pathbuf[MAXPATHLEN]; |
62e76326 | 826 | |
b6a2f15e | 827 | if (Config.coredump_dir) { |
62e76326 | 828 | if (0 == strcmp("none", Config.coredump_dir)) { |
829 | (void) 0; | |
830 | } else if (chdir(Config.coredump_dir) == 0) { | |
bf8fe701 | 831 | debugs(0, 1, "Set Current Directory to " << Config.coredump_dir); |
62e76326 | 832 | return; |
833 | } else { | |
bf8fe701 | 834 | debugs(50, 0, "chdir: " << Config.coredump_dir << ": " << xstrerror()); |
62e76326 | 835 | } |
b6a2f15e | 836 | } |
62e76326 | 837 | |
02e8115e | 838 | /* If we don't have coredump_dir or couldn't cd there, report current dir */ |
4a504376 | 839 | if (getcwd(pathbuf, MAXPATHLEN)) { |
bf8fe701 | 840 | debugs(0, 1, "Current Directory is " << pathbuf); |
4a504376 | 841 | } else { |
bf8fe701 | 842 | debugs(50, 0, "WARNING: Can't find current directory, getcwd: " << xstrerror()); |
4a504376 | 843 | } |
b6a2f15e | 844 | } |
845 | ||
b67e2c8c | 846 | #if DELAY_POOLS |
847 | #include "DelayPools.h" | |
848 | #endif | |
849 | ||
b8d8561b | 850 | static void |
9b7292ce | 851 | mainInitialize(void) |
852 | { | |
efd900cb | 853 | /* chroot if configured to run inside chroot */ |
62e76326 | 854 | |
64b0a10d | 855 | if (Config.chroot_dir && (chroot(Config.chroot_dir) != 0 || chdir("/") != 0)) { |
62e76326 | 856 | fatal("failed to chroot"); |
efd900cb | 857 | } |
62e76326 | 858 | |
1758c627 | 859 | if (opt_catch_signals) { |
62e76326 | 860 | squid_signal(SIGSEGV, death, SA_NODEFER | SA_RESETHAND); |
861 | squid_signal(SIGBUS, death, SA_NODEFER | SA_RESETHAND); | |
44f99671 | 862 | } |
62e76326 | 863 | |
30a4f2a8 | 864 | squid_signal(SIGPIPE, SIG_IGN, SA_RESTART); |
865 | squid_signal(SIGCHLD, sig_child, SA_NODEFER | SA_RESTART); | |
44f99671 | 866 | |
85407535 | 867 | setEffectiveUser(); |
62e76326 | 868 | |
30a4f2a8 | 869 | if (icpPortNumOverride != 1) |
62e76326 | 870 | Config.Port.icp = (u_short) icpPortNumOverride; |
30a4f2a8 | 871 | |
b6f794d6 | 872 | _db_init(Config.Log.log, Config.debugOptions); |
62e76326 | 873 | |
5c5783a2 | 874 | fd_open(fileno(debug_log), FD_LOG, Config.Log.log); |
62e76326 | 875 | |
71a17702 | 876 | #if MEM_GEN_TRACE |
62e76326 | 877 | |
71a17702 | 878 | log_trace_init("/tmp/squid.alloc"); |
62e76326 | 879 | |
71a17702 | 880 | #endif |
62e76326 | 881 | |
bf8fe701 | 882 | debugs(1, 0, "Starting Squid Cache version " << version_string << " for " << CONFIG_HOST_TYPE << "..."); |
62e76326 | 883 | |
ec4daaa5 | 884 | #ifdef _SQUID_WIN32_ |
b293c4d8 | 885 | |
886 | if (WIN32_run_mode == _WIN_SQUID_RUN_MODE_SERVICE) { | |
bf8fe701 | 887 | debugs(1, 0, "Running as " << WIN32_Service_name << " Windows System Service on " << WIN32_OS_string); |
888 | debugs(1, 0, "Service command line is: " << WIN32_Service_Command_Line); | |
b293c4d8 | 889 | } else |
bf8fe701 | 890 | debugs(1, 0, "Running on " << WIN32_OS_string); |
b293c4d8 | 891 | |
892 | #endif | |
893 | ||
36584579 | 894 | debugs(1, 1, "Process ID " << getpid()); |
62e76326 | 895 | |
bf8fe701 | 896 | debugs(1, 1, "With " << Squid_MaxFD << " file descriptors available"); |
5f3f8d0e | 897 | |
6c1962dd | 898 | #ifdef _SQUID_MSWIN_ |
899 | ||
bf8fe701 | 900 | debugs(1, 1, "With " << _getmaxstdio() << " CRT stdio descriptors available"); |
6c1962dd | 901 | |
902 | if (WIN32_Socks_initialized) | |
bf8fe701 | 903 | debugs(1, 1, "Windows sockets initialized"); |
6c1962dd | 904 | |
babd1fd5 | 905 | if (WIN32_OS_version > _WIN_OS_WINNT) { |
26ac0430 | 906 | WIN32_IpAddrChangeMonitorInit(); |
babd1fd5 | 907 | } |
908 | ||
6c1962dd | 909 | #endif |
910 | ||
9f75c559 | 911 | if (!configured_once) |
62e76326 | 912 | disk_init(); /* disk_init must go before ipcache_init() */ |
913 | ||
5f3f8d0e | 914 | ipcache_init(); |
62e76326 | 915 | |
f88bb09c | 916 | fqdncache_init(); |
62e76326 | 917 | |
0e70aa1e | 918 | parseEtcHosts(); |
62e76326 | 919 | |
3c573763 | 920 | #if USE_DNSSERVERS |
62e76326 | 921 | |
74addf6c | 922 | dnsInit(); |
62e76326 | 923 | |
3c573763 | 924 | #else |
62e76326 | 925 | |
7b724b86 | 926 | idnsInit(); |
62e76326 | 927 | |
eb824054 | 928 | #endif |
62e76326 | 929 | |
74addf6c | 930 | redirectInit(); |
62e76326 | 931 | |
e6ccf245 | 932 | authenticateInit(&Config.authConfiguration); |
62e76326 | 933 | |
d9572179 | 934 | externalAclInit(); |
62e76326 | 935 | |
b012353a | 936 | useragentOpenLog(); |
62e76326 | 937 | |
fd2c5549 | 938 | refererOpenLog(); |
62e76326 | 939 | |
2ac76861 | 940 | httpHeaderInitModule(); /* must go before any header processing (e.g. the one in errorInitialize) */ |
62e76326 | 941 | |
2246b732 | 942 | httpReplyInitModule(); /* must go before accepting replies */ |
62e76326 | 943 | |
9b312a19 | 944 | errorInitialize(); |
62e76326 | 945 | |
7a2f978b | 946 | accessLogInit(); |
62e76326 | 947 | |
3898f57f | 948 | #if USE_IDENT |
62e76326 | 949 | |
05832ae1 | 950 | identInit(); |
62e76326 | 951 | |
3898f57f | 952 | #endif |
5e14bf6d | 953 | #ifdef SQUID_SNMP |
62e76326 | 954 | |
5e14bf6d | 955 | snmpInit(); |
62e76326 | 956 | |
5e14bf6d | 957 | #endif |
30a4f2a8 | 958 | #if MALLOC_DBG |
62e76326 | 959 | |
5f3f8d0e | 960 | malloc_debug(0, malloc_debug_level); |
62e76326 | 961 | |
5f3f8d0e | 962 | #endif |
963 | ||
dbe4fd8e | 964 | if (!configured_once) { |
a3d0a19d | 965 | #if USE_UNLINKD |
62e76326 | 966 | unlinkdInit(); |
967 | #endif | |
968 | ||
969 | urlInitialize(); | |
62e76326 | 970 | statInit(); |
971 | storeInit(); | |
972 | mainSetCwd(); | |
973 | /* after this point we want to see the mallinfo() output */ | |
974 | do_mallinfo = 1; | |
975 | mimeInit(Config.mimeTablePathname); | |
62e76326 | 976 | refreshInit(); |
0d7e5d78 | 977 | #if DELAY_POOLS |
62e76326 | 978 | |
979 | DelayPools::Init(); | |
0d7e5d78 | 980 | #endif |
62e76326 | 981 | |
b6b6f466 | 982 | FwdState::initModule(); |
62ee09ca | 983 | /* register the modules in the cache manager menus */ |
62ee09ca | 984 | |
a08f1b5a | 985 | cbdataRegisterWithCacheManager(); |
62ee09ca | 986 | /* These use separate calls so that the comm loops can eventually |
987 | * coexist. | |
988 | */ | |
62ee09ca | 989 | |
15b3c0d7 | 990 | eventInit(); |
610ee341 | 991 | |
26ac0430 | 992 | // TODO: pconn is a good candidate for new-style registration |
6852be71 | 993 | // PconnModule::GetInstance()->registerWithCacheManager(); |
26ac0430 | 994 | // moved to PconnModule::PconnModule() |
5f3f8d0e | 995 | } |
62e76326 | 996 | |
1f38f50a | 997 | #if USE_WCCP |
998 | wccpInit(); | |
62e76326 | 999 | |
0b0cfcf2 | 1000 | #endif |
1001 | #if USE_WCCPv2 | |
1002 | ||
1003 | wccp2Init(); | |
1004 | ||
1f38f50a | 1005 | #endif |
62e76326 | 1006 | |
2285407f | 1007 | serverConnectionsOpen(); |
62e76326 | 1008 | |
3ee2b4f8 | 1009 | neighbors_init(); |
fc68f6b1 | 1010 | |
5f5e883f | 1011 | // neighborsRegisterWithCacheManager(); //moved to neighbors_init() |
62e76326 | 1012 | |
efd900cb | 1013 | if (Config.chroot_dir) |
62e76326 | 1014 | no_suid(); |
1015 | ||
dbe4fd8e | 1016 | if (!configured_once) |
62e76326 | 1017 | writePidFile(); /* write PID file */ |
0a5b9b32 | 1018 | |
7e7a0442 | 1019 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 1020 | |
e3175d1f | 1021 | squid_signal(SIGQUIT, rotate_logs, SA_RESTART); |
62e76326 | 1022 | |
e3175d1f | 1023 | squid_signal(SIGTRAP, sigusr2_handle, SA_RESTART); |
62e76326 | 1024 | |
e3175d1f | 1025 | #else |
62e76326 | 1026 | |
30a4f2a8 | 1027 | squid_signal(SIGUSR1, rotate_logs, SA_RESTART); |
62e76326 | 1028 | |
30a4f2a8 | 1029 | squid_signal(SIGUSR2, sigusr2_handle, SA_RESTART); |
62e76326 | 1030 | |
9fc0b4b8 | 1031 | #endif |
62e76326 | 1032 | |
30a4f2a8 | 1033 | squid_signal(SIGHUP, reconfigure, SA_RESTART); |
62e76326 | 1034 | |
30a4f2a8 | 1035 | squid_signal(SIGTERM, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1036 | |
30a4f2a8 | 1037 | squid_signal(SIGINT, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1038 | |
ae1feb30 | 1039 | #ifdef SIGTTIN |
1040 | ||
1041 | squid_signal(SIGTTIN, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); | |
1042 | ||
1043 | #endif | |
1044 | ||
58a39dc9 | 1045 | memCheckInit(); |
62e76326 | 1046 | |
57afc994 AR |
1047 | #if USE_LOADABLE_MODULES |
1048 | LoadableModulesConfigure(Config.loadable_module_names); | |
1049 | #endif | |
1050 | ||
8f361c50 AR |
1051 | #if USE_ADAPTATION |
1052 | bool enableAdaptation = false; | |
1053 | ||
1054 | // We can remove this dependency on specific adaptation mechanisms | |
1055 | // if we create a generic Registry of such mechanisms. Should we? | |
b958cb0f | 1056 | #if ICAP_CLIENT |
26cc52cb AR |
1057 | Adaptation::Icap::TheConfig.finalize(); |
1058 | enableAdaptation = Adaptation::Icap::TheConfig.onoff || enableAdaptation; | |
6e5db507 AR |
1059 | #endif |
1060 | #if USE_ECAP | |
574b508c AR |
1061 | Adaptation::Ecap::TheConfig.finalize(); // must be after we load modules |
1062 | enableAdaptation = Adaptation::Ecap::TheConfig.onoff || enableAdaptation; | |
b958cb0f | 1063 | #endif |
8f361c50 AR |
1064 | // must be the last adaptation-related finalize |
1065 | Adaptation::Config::Finalize(enableAdaptation); | |
b958cb0f AR |
1066 | #endif |
1067 | ||
79039294 AR |
1068 | #if USE_SQUID_ESI |
1069 | Esi::Init(); | |
1070 | #endif | |
b958cb0f | 1071 | |
bf8fe701 | 1072 | debugs(1, 1, "Ready to serve requests."); |
62e76326 | 1073 | |
dbe4fd8e | 1074 | if (!configured_once) { |
c8f4eac4 | 1075 | eventAdd("storeMaintain", Store::Maintain, NULL, 1.0, 1); |
62e76326 | 1076 | |
1077 | if (Config.onoff.announce) | |
1078 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
1079 | ||
1080 | eventAdd("ipcache_purgelru", ipcache_purgelru, NULL, 10.0, 1); | |
1081 | ||
1082 | eventAdd("fqdncache_purgelru", fqdncache_purgelru, NULL, 15.0, 1); | |
1083 | ||
88bfe092 | 1084 | #if USE_XPROF_STATS |
62e76326 | 1085 | |
1086 | eventAdd("cpuProfiling", xprof_event, NULL, 1.0, 1); | |
1087 | ||
88bfe092 | 1088 | #endif |
62e76326 | 1089 | |
1090 | eventAdd("memPoolCleanIdlePools", Mem::CleanIdlePools, NULL, 15.0, 1); | |
4d7add01 | 1091 | } |
62e76326 | 1092 | |
dbe4fd8e | 1093 | configured_once = 1; |
4d64d74a | 1094 | } |
1095 | ||
c842329d | 1096 | /// unsafe main routine -- may throw |
6e5db507 | 1097 | static int SquidMain(int argc, char **argv); |
c842329d | 1098 | /// unsafe main routine wrapper to catch exceptions |
6e5db507 AR |
1099 | static int SquidMainSafe(int argc, char **argv); |
1100 | ||
6c1962dd | 1101 | #if USE_WIN32_SERVICE |
1102 | /* When USE_WIN32_SERVICE is defined, the main function is placed in win32.cc */ | |
1103 | extern "C" void WINAPI | |
a0aa9e74 | 1104 | SquidWinSvcMain(int argc, char **argv) |
6c1962dd | 1105 | #else |
b8d8561b | 1106 | int |
1107 | main(int argc, char **argv) | |
9b7292ce | 1108 | #endif |
6e5db507 AR |
1109 | { |
1110 | SquidMainSafe(argc, argv); | |
1111 | } | |
1112 | ||
1113 | static int | |
1114 | SquidMainSafe(int argc, char **argv) | |
1115 | { | |
1116 | try { | |
1117 | return SquidMain(argc, argv); | |
26ac0430 | 1118 | } catch (const std::exception &e) { |
bba7c3d0 | 1119 | std::cerr << "dying from an unhandled exception: " << e.what() << std::endl; |
26ac0430 AJ |
1120 | throw; |
1121 | } catch (...) { | |
bba7c3d0 | 1122 | std::cerr << "dying from an unhandled exception." << std::endl; |
26ac0430 AJ |
1123 | throw; |
1124 | } | |
1125 | return -1; // not reached | |
6e5db507 AR |
1126 | } |
1127 | ||
1128 | static int | |
1129 | SquidMain(int argc, char **argv) | |
9b7292ce | 1130 | { |
a0aa9e74 | 1131 | #ifdef _SQUID_WIN32_ |
1132 | ||
1133 | int WIN32_init_err; | |
1134 | #endif | |
4d64d74a | 1135 | |
a4ba1105 | 1136 | #if HAVE_SBRK |
62e76326 | 1137 | |
9b7292ce | 1138 | sbrk_start = sbrk(0); |
a4ba1105 | 1139 | #endif |
1140 | ||
fb6a61d1 | 1141 | Debug::parseOptions(NULL); |
9b7292ce | 1142 | debug_log = stderr; |
62e76326 | 1143 | |
b9269882 | 1144 | #if defined(SQUID_MAXFD_LIMIT) |
1145 | ||
1146 | if (SQUID_MAXFD_LIMIT < Squid_MaxFD) | |
1147 | Squid_MaxFD = SQUID_MAXFD_LIMIT; | |
1148 | ||
1149 | #endif | |
399e85ea | 1150 | |
ec4daaa5 | 1151 | #ifdef _SQUID_WIN32_ |
6c1962dd | 1152 | |
a0aa9e74 | 1153 | if ((WIN32_init_err = WIN32_Subsystem_Init(&argc, &argv))) |
1154 | return WIN32_init_err; | |
62e76326 | 1155 | |
0e6d05ef | 1156 | #endif |
1157 | ||
9b7292ce | 1158 | /* call mallopt() before anything else */ |
0b29fe44 | 1159 | #if HAVE_MALLOPT |
7328e889 | 1160 | #ifdef M_GRAIN |
9b7292ce | 1161 | /* Round up all sizes to a multiple of this */ |
1162 | mallopt(M_GRAIN, 16); | |
62e76326 | 1163 | |
7328e889 | 1164 | #endif |
1165 | #ifdef M_MXFAST | |
9b7292ce | 1166 | /* biggest size that is considered a small block */ |
1167 | mallopt(M_MXFAST, 256); | |
62e76326 | 1168 | |
7328e889 | 1169 | #endif |
1170 | #ifdef M_NBLKS | |
9b7292ce | 1171 | /* allocate this many small blocks at once */ |
1172 | mallopt(M_NLBLKS, 32); | |
62e76326 | 1173 | |
7328e889 | 1174 | #endif |
1175 | #endif /* HAVE_MALLOPT */ | |
1176 | ||
9b7292ce | 1177 | squid_srandom(time(NULL)); |
4d64d74a | 1178 | |
9b7292ce | 1179 | getCurrentTime(); |
62e76326 | 1180 | |
9b7292ce | 1181 | squid_start = current_time; |
62e76326 | 1182 | |
9b7292ce | 1183 | failure_notify = fatal_dump; |
4d64d74a | 1184 | |
6c1962dd | 1185 | #if USE_WIN32_SERVICE |
1186 | ||
9b7292ce | 1187 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1188 | |
1189 | #endif | |
1190 | ||
9b7292ce | 1191 | mainParseOptions(argc, argv); |
4d64d74a | 1192 | |
9aae6be3 | 1193 | if (opt_parse_cfg_only) { |
26ac0430 | 1194 | Debug::parseOptions("ALL,1"); |
9aae6be3 | 1195 | } |
1196 | ||
6c1962dd | 1197 | #if USE_WIN32_SERVICE |
1198 | ||
26ac0430 | 1199 | if (opt_install_service) { |
9b7292ce | 1200 | WIN32_InstallService(); |
a0aa9e74 | 1201 | return 0; |
9b7292ce | 1202 | } |
6c1962dd | 1203 | |
26ac0430 | 1204 | if (opt_remove_service) { |
9b7292ce | 1205 | WIN32_RemoveService(); |
a0aa9e74 | 1206 | return 0; |
9b7292ce | 1207 | } |
6c1962dd | 1208 | |
26ac0430 | 1209 | if (opt_command_line) { |
9b7292ce | 1210 | WIN32_SetServiceCommandLine(); |
a0aa9e74 | 1211 | return 0; |
9b7292ce | 1212 | } |
6c1962dd | 1213 | |
1214 | #endif | |
1215 | ||
9b7292ce | 1216 | /* parse configuration file |
1217 | * note: in "normal" case this used to be called from mainInitialize() */ | |
1218 | { | |
1219 | int parse_err; | |
62e76326 | 1220 | |
9b7292ce | 1221 | if (!ConfigFile) |
1222 | ConfigFile = xstrdup(DefaultConfigFile); | |
62e76326 | 1223 | |
9b7292ce | 1224 | assert(!configured_once); |
62e76326 | 1225 | |
9b7292ce | 1226 | Mem::Init(); |
62e76326 | 1227 | |
9b7292ce | 1228 | storeFsInit(); /* required for config parsing */ |
62e76326 | 1229 | |
b9ae18aa | 1230 | /* May not be needed for parsing, have not audited for such */ |
1231 | DiskIOModule::SetupAllModules(); | |
1232 | ||
59b2d47f | 1233 | /* Shouldn't be needed for config parsing, but have not audited for such */ |
1234 | StoreFileSystem::SetupAllFs(); | |
1235 | ||
c8f4eac4 | 1236 | /* we may want the parsing process to set this up in the future */ |
1237 | Store::Root(new StoreController); | |
1238 | ||
dd9b1081 | 1239 | parse_err = parseConfigFile(ConfigFile); |
62e76326 | 1240 | |
97244680 | 1241 | Mem::Report(); |
26ac0430 | 1242 | |
9b7292ce | 1243 | if (opt_parse_cfg_only) |
6c1962dd | 1244 | |
9b7292ce | 1245 | return parse_err; |
9b7292ce | 1246 | } |
c642c141 | 1247 | setUmask(Config.umask); |
9b7292ce | 1248 | if (-1 == opt_send_signal) |
1249 | if (checkRunningPid()) | |
205d7c3b | 1250 | exit(0); |
e13ee7ad | 1251 | |
9bc73deb | 1252 | #if TEST_ACCESS |
62e76326 | 1253 | |
95564b0d | 1254 | comm_init(); |
62e76326 | 1255 | |
9b7292ce | 1256 | comm_select_init(); |
62e76326 | 1257 | |
9b7292ce | 1258 | mainInitialize(); |
62e76326 | 1259 | |
9b7292ce | 1260 | test_access(); |
62e76326 | 1261 | |
9b7292ce | 1262 | return 0; |
62e76326 | 1263 | |
9bc73deb | 1264 | #endif |
1265 | ||
9b7292ce | 1266 | /* send signal to running copy and exit */ |
26ac0430 | 1267 | if (opt_send_signal != -1) { |
9b7292ce | 1268 | /* chroot if configured to run inside chroot */ |
62e76326 | 1269 | |
a572d8be | 1270 | if (Config.chroot_dir) { |
1271 | if (chroot(Config.chroot_dir)) | |
1272 | fatal("failed to chroot"); | |
1273 | ||
1274 | no_suid(); | |
1275 | } else { | |
1276 | leave_suid(); | |
9b7292ce | 1277 | } |
62e76326 | 1278 | |
9b7292ce | 1279 | sendSignal(); |
1280 | /* NOTREACHED */ | |
1281 | } | |
62e76326 | 1282 | |
26ac0430 | 1283 | if (opt_create_swap_dirs) { |
9b7292ce | 1284 | /* chroot if configured to run inside chroot */ |
0e657244 | 1285 | |
9b7292ce | 1286 | if (Config.chroot_dir && chroot(Config.chroot_dir)) { |
1287 | fatal("failed to chroot"); | |
1288 | } | |
62e76326 | 1289 | |
9b7292ce | 1290 | setEffectiveUser(); |
bf8fe701 | 1291 | debugs(0, 0, "Creating Swap Directories"); |
c8f4eac4 | 1292 | Store::Root().create(); |
6c1962dd | 1293 | |
9b7292ce | 1294 | return 0; |
9b7292ce | 1295 | } |
62e76326 | 1296 | |
9b7292ce | 1297 | if (!opt_no_daemon) |
1298 | watch_child(argv); | |
62e76326 | 1299 | |
95564b0d | 1300 | setMaxFD(); |
1301 | ||
1302 | /* init comm module */ | |
1303 | comm_init(); | |
62e76326 | 1304 | |
9b7292ce | 1305 | comm_select_init(); |
4d64d74a | 1306 | |
26ac0430 | 1307 | if (opt_no_daemon) { |
9b7292ce | 1308 | /* we have to init fdstat here. */ |
1309 | fd_open(0, FD_LOG, "stdin"); | |
1310 | fd_open(1, FD_LOG, "stdout"); | |
1311 | fd_open(2, FD_LOG, "stderr"); | |
1312 | } | |
62e76326 | 1313 | |
6c1962dd | 1314 | #if USE_WIN32_SERVICE |
1315 | ||
9b7292ce | 1316 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1317 | |
1318 | #endif | |
1319 | ||
9b7292ce | 1320 | mainInitialize(); |
4d64d74a | 1321 | |
6c1962dd | 1322 | #if USE_WIN32_SERVICE |
1323 | ||
9b7292ce | 1324 | WIN32_svcstatusupdate(SERVICE_RUNNING, 0); |
6c1962dd | 1325 | |
1326 | #endif | |
1327 | ||
9b7292ce | 1328 | /* main loop */ |
a553a5a3 | 1329 | EventLoop mainLoop; |
62e76326 | 1330 | |
9688b0ae | 1331 | SignalEngine signalEngine(mainLoop); |
6c1962dd | 1332 | |
9688b0ae | 1333 | mainLoop.registerEngine(&signalEngine); |
62e76326 | 1334 | |
8ff3fa2e | 1335 | /* TODO: stop requiring the singleton here */ |
1336 | mainLoop.registerEngine(EventScheduler::GetInstance()); | |
62e76326 | 1337 | |
8ff3fa2e | 1338 | StoreRootEngine store_engine; |
615f9581 | 1339 | |
8ff3fa2e | 1340 | mainLoop.registerEngine(&store_engine); |
a774fd3f | 1341 | |
8ff3fa2e | 1342 | CommSelectEngine comm_engine; |
1343 | ||
8ff3fa2e | 1344 | mainLoop.registerEngine(&comm_engine); |
1345 | ||
bef81ea5 | 1346 | mainLoop.setPrimaryEngine(&comm_engine); |
1347 | ||
8ff3fa2e | 1348 | /* use the standard time service */ |
1349 | TimeEngine time_engine; | |
1350 | ||
1351 | mainLoop.setTimeService(&time_engine); | |
1352 | ||
1353 | mainLoop.run(); | |
1354 | ||
1355 | if (mainLoop.errcount == 10) | |
1356 | fatal_dump("Event loop exited with failure."); | |
1357 | ||
1358 | /* shutdown squid now */ | |
1359 | SquidShutdown(); | |
62e76326 | 1360 | |
9b7292ce | 1361 | /* NOTREACHED */ |
9b7292ce | 1362 | return 0; |
090089c4 | 1363 | } |
7690e8eb | 1364 | |
b8d8561b | 1365 | static void |
0673c0ba | 1366 | sendSignal(void) |
7690e8eb | 1367 | { |
ff8d0ea6 | 1368 | pid_t pid; |
fedac7e5 | 1369 | debug_log = stderr; |
258ac4d7 | 1370 | |
1371 | if (strcmp(Config.pidFilename, "none") == 0) { | |
bf8fe701 | 1372 | debugs(0, 1, "No pid_filename specified. Trusting you know what you are doing."); |
258ac4d7 | 1373 | } |
1374 | ||
fedac7e5 | 1375 | pid = readPidFile(); |
62e76326 | 1376 | |
fedac7e5 | 1377 | if (pid > 1) { |
6c1962dd | 1378 | #if USE_WIN32_SERVICE |
1379 | ||
1380 | if (opt_signal_service) { | |
1381 | WIN32_sendSignal(opt_send_signal); | |
1382 | exit(0); | |
1383 | } else | |
1384 | #ifdef _SQUID_MSWIN_ | |
1385 | { | |
7dbca7a4 | 1386 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
6c1962dd | 1387 | fprintf(stderr, "signal to Squid Service:\n"); |
1388 | fprintf(stderr, "missing -n command line switch.\n"); | |
1389 | exit(1); | |
1390 | } | |
1391 | ||
1392 | /* NOTREACHED */ | |
1393 | #endif | |
1394 | ||
1395 | #endif | |
1396 | ||
62e76326 | 1397 | if (kill(pid, opt_send_signal) && |
1398 | /* ignore permissions if just running check */ | |
1399 | !(opt_send_signal == 0 && errno == EPERM)) { | |
7dbca7a4 | 1400 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
62e76326 | 1401 | fprintf(stderr, "signal %d to process %d: %s\n", |
1402 | opt_send_signal, (int) pid, xstrerror()); | |
1403 | exit(1); | |
1404 | } | |
fedac7e5 | 1405 | } else { |
205d7c3b | 1406 | if (opt_send_signal != SIGTERM) { |
e08d498f | 1407 | fprintf(stderr, "%s: ERROR: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1408 | exit(1); |
1409 | } else { | |
e08d498f | 1410 | fprintf(stderr, "%s: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1411 | exit(0); |
1412 | } | |
7690e8eb | 1413 | } |
62e76326 | 1414 | |
fedac7e5 | 1415 | /* signal successfully sent */ |
1416 | exit(0); | |
1417 | } | |
f95b8144 | 1418 | |
a50bfe93 | 1419 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 1420 | /* |
1421 | * This function is run when Squid is in daemon mode, just | |
1422 | * before the parent forks and starts up the child process. | |
1423 | * It can be used for admin-specific tasks, such as notifying | |
1424 | * someone that Squid is (re)started. | |
1425 | */ | |
1426 | static void | |
1427 | mainStartScript(const char *prog) | |
1428 | { | |
1429 | char script[SQUID_MAXPATHLEN]; | |
1430 | char *t; | |
1431 | size_t sl = 0; | |
1432 | pid_t cpid; | |
1433 | pid_t rpid; | |
1434 | xstrncpy(script, prog, MAXPATHLEN); | |
62e76326 | 1435 | |
e18d7fdc | 1436 | if ((t = strrchr(script, '/'))) { |
62e76326 | 1437 | *(++t) = '\0'; |
1438 | sl = strlen(script); | |
e18d7fdc | 1439 | } |
62e76326 | 1440 | |
e18d7fdc | 1441 | xstrncpy(&script[sl], squid_start_script, MAXPATHLEN - sl); |
62e76326 | 1442 | |
e18d7fdc | 1443 | if ((cpid = fork()) == 0) { |
62e76326 | 1444 | /* child */ |
f75662c9 | 1445 | execl(script, squid_start_script, (char *)NULL); |
482aa790 | 1446 | _exit(-1); |
e18d7fdc | 1447 | } else { |
62e76326 | 1448 | do { |
e18d7fdc | 1449 | #ifdef _SQUID_NEXT_ |
62e76326 | 1450 | union wait status; |
1451 | rpid = wait3(&status, 0, NULL); | |
e18d7fdc | 1452 | #else |
62e76326 | 1453 | |
1454 | int status; | |
1455 | rpid = waitpid(-1, &status, 0); | |
e18d7fdc | 1456 | #endif |
62e76326 | 1457 | |
1458 | } while (rpid != cpid); | |
e18d7fdc | 1459 | } |
1460 | } | |
1461 | ||
a50bfe93 | 1462 | #endif /* _SQUID_MSWIN_ */ |
1463 | ||
efd900cb | 1464 | static int |
1465 | checkRunningPid(void) | |
1466 | { | |
1467 | pid_t pid; | |
e0077312 | 1468 | |
1469 | if (!debug_log) | |
1470 | debug_log = stderr; | |
1471 | ||
efd900cb | 1472 | pid = readPidFile(); |
62e76326 | 1473 | |
efd900cb | 1474 | if (pid < 2) |
62e76326 | 1475 | return 0; |
1476 | ||
efd900cb | 1477 | if (kill(pid, 0) < 0) |
62e76326 | 1478 | return 0; |
1479 | ||
cb7a4fcb | 1480 | debugs(0, 0, "Squid is already running! Process ID " << pid); |
62e76326 | 1481 | |
efd900cb | 1482 | return 1; |
1483 | } | |
1484 | ||
f95b8144 | 1485 | static void |
bbe199dc | 1486 | watch_child(char *argv[]) |
f95b8144 | 1487 | { |
a50bfe93 | 1488 | #ifndef _SQUID_MSWIN_ |
f95b8144 | 1489 | char *prog; |
f95b8144 | 1490 | int failcount = 0; |
1491 | time_t start; | |
1492 | time_t stop; | |
1493 | #ifdef _SQUID_NEXT_ | |
62e76326 | 1494 | |
f95b8144 | 1495 | union wait status; |
1496 | #else | |
62e76326 | 1497 | |
f95b8144 | 1498 | int status; |
1499 | #endif | |
62e76326 | 1500 | |
e3a3b845 | 1501 | pid_t pid; |
c99c5397 | 1502 | #ifdef TIOCNOTTY |
1503 | ||
54f742e7 | 1504 | int i; |
c99c5397 | 1505 | #endif |
1506 | ||
742724a4 | 1507 | int nullfd; |
62e76326 | 1508 | |
f95b8144 | 1509 | if (*(argv[0]) == '(') |
62e76326 | 1510 | return; |
1511 | ||
7dbca7a4 | 1512 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1513 | |
54f742e7 | 1514 | if ((pid = fork()) < 0) |
62e76326 | 1515 | syslog(LOG_ALERT, "fork failed: %s", xstrerror()); |
54f742e7 | 1516 | else if (pid > 0) |
62e76326 | 1517 | exit(0); |
1518 | ||
54f742e7 | 1519 | if (setsid() < 0) |
62e76326 | 1520 | syslog(LOG_ALERT, "setsid failed: %s", xstrerror()); |
1521 | ||
efd900cb | 1522 | closelog(); |
62e76326 | 1523 | |
54f742e7 | 1524 | #ifdef TIOCNOTTY |
62e76326 | 1525 | |
c4aefe96 | 1526 | if ((i = open("/dev/tty", O_RDWR | O_TEXT)) >= 0) { |
62e76326 | 1527 | ioctl(i, TIOCNOTTY, NULL); |
1528 | close(i); | |
54f742e7 | 1529 | } |
62e76326 | 1530 | |
54f742e7 | 1531 | #endif |
b05490a8 | 1532 | |
7f6ffd15 | 1533 | /* |
1534 | * RBCOLLINS - if cygwin stackdumps when squid is run without | |
1535 | * -N, check the cygwin1.dll version, it needs to be AT LEAST | |
1536 | * 1.1.3. execvp had a bit overflow error in a loop.. | |
1537 | */ | |
742724a4 | 1538 | /* Connect stdio to /dev/null in daemon mode */ |
4da086c4 | 1539 | nullfd = open(_PATH_DEVNULL, O_RDWR | O_TEXT); |
62e76326 | 1540 | |
e4a1325e | 1541 | if (nullfd < 0) |
4da086c4 | 1542 | fatalf(_PATH_DEVNULL " %s\n", xstrerror()); |
e4a1325e | 1543 | |
742724a4 | 1544 | dup2(nullfd, 0); |
62e76326 | 1545 | |
742724a4 | 1546 | if (opt_debug_stderr < 0) { |
62e76326 | 1547 | dup2(nullfd, 1); |
1548 | dup2(nullfd, 2); | |
742724a4 | 1549 | } |
62e76326 | 1550 | |
f95b8144 | 1551 | for (;;) { |
62e76326 | 1552 | mainStartScript(argv[0]); |
1553 | ||
1554 | if ((pid = fork()) == 0) { | |
1555 | /* child */ | |
7dbca7a4 | 1556 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1557 | prog = xstrdup(argv[0]); |
1558 | argv[0] = xstrdup("(squid)"); | |
1559 | execvp(prog, argv); | |
1560 | syslog(LOG_ALERT, "execvp failed: %s", xstrerror()); | |
1561 | } | |
1562 | ||
1563 | /* parent */ | |
7dbca7a4 | 1564 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1565 | |
1566 | syslog(LOG_NOTICE, "Squid Parent: child process %d started", pid); | |
1567 | ||
1568 | time(&start); | |
1569 | ||
1570 | squid_signal(SIGINT, SIG_IGN, SA_RESTART); | |
1571 | ||
f95b8144 | 1572 | #ifdef _SQUID_NEXT_ |
62e76326 | 1573 | |
1574 | pid = wait3(&status, 0, NULL); | |
1575 | ||
f95b8144 | 1576 | #else |
62e76326 | 1577 | |
1578 | pid = waitpid(-1, &status, 0); | |
1579 | ||
1580 | #endif | |
1581 | ||
1582 | time(&stop); | |
1583 | ||
1584 | if (WIFEXITED(status)) { | |
1585 | syslog(LOG_NOTICE, | |
1586 | "Squid Parent: child process %d exited with status %d", | |
1587 | pid, WEXITSTATUS(status)); | |
1588 | } else if (WIFSIGNALED(status)) { | |
1589 | syslog(LOG_NOTICE, | |
cc192b50 | 1590 | "Squid Parent: child process %d exited due to signal %d with status %d", |
1591 | pid, WTERMSIG(status), WEXITSTATUS(status)); | |
62e76326 | 1592 | } else { |
1593 | syslog(LOG_NOTICE, "Squid Parent: child process %d exited", pid); | |
1594 | } | |
1595 | ||
1596 | if (stop - start < 10) | |
1597 | failcount++; | |
1598 | else | |
1599 | failcount = 0; | |
1600 | ||
1601 | if (failcount == 5) { | |
1602 | syslog(LOG_ALERT, "Exiting due to repeated, frequent failures"); | |
1603 | exit(1); | |
1604 | } | |
1605 | ||
1606 | if (WIFEXITED(status)) | |
1607 | if (WEXITSTATUS(status) == 0) | |
1608 | exit(0); | |
1609 | ||
1610 | if (WIFSIGNALED(status)) { | |
1611 | switch (WTERMSIG(status)) { | |
1612 | ||
1613 | case SIGKILL: | |
1614 | exit(0); | |
1615 | break; | |
1616 | ||
06a0fbd3 | 1617 | case SIGINT: |
1618 | case SIGTERM: | |
26ac0430 | 1619 | syslog(LOG_ALERT, "Exiting due to unexpected forced shutdown"); |
06a0fbd3 | 1620 | exit(1); |
1621 | break; | |
1622 | ||
62e76326 | 1623 | default: |
1624 | break; | |
1625 | } | |
1626 | } | |
1627 | ||
1628 | squid_signal(SIGINT, SIG_DFL, SA_RESTART); | |
1629 | sleep(3); | |
f95b8144 | 1630 | } |
62e76326 | 1631 | |
bbe199dc | 1632 | /* NOTREACHED */ |
a50bfe93 | 1633 | #endif /* _SQUID_MSWIN_ */ |
a572d8be | 1634 | |
f95b8144 | 1635 | } |
fff6ad65 | 1636 | |
9ec1a1dc | 1637 | static void |
8ff3fa2e | 1638 | SquidShutdown() |
fff6ad65 | 1639 | { |
d71e4674 AR |
1640 | /* XXX: This function is called after the main loop has quit, which |
1641 | * means that no AsyncCalls would be called, including close handlers. | |
1642 | * TODO: We need to close/shut/free everything that needs calls before | |
1643 | * exiting the loop. | |
26ac0430 | 1644 | */ |
d71e4674 | 1645 | |
6c1962dd | 1646 | #if USE_WIN32_SERVICE |
1647 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1648 | #endif | |
1649 | ||
bf8fe701 | 1650 | debugs(1, 1, "Shutting down..."); |
95a83c22 | 1651 | #if USE_DNSSERVERS |
1652 | ||
1653 | dnsShutdown(); | |
1654 | #else | |
1655 | ||
1656 | idnsShutdown(); | |
1657 | #endif | |
1658 | ||
1659 | redirectShutdown(); | |
1660 | externalAclShutdown(); | |
d723bf6b | 1661 | icpConnectionClose(); |
1662 | #if USE_HTCP | |
62e76326 | 1663 | |
d723bf6b | 1664 | htcpSocketClose(); |
1665 | #endif | |
1666 | #ifdef SQUID_SNMP | |
62e76326 | 1667 | |
d723bf6b | 1668 | snmpConnectionClose(); |
320e9f36 | 1669 | #endif |
eb824054 | 1670 | #if USE_WCCP |
62e76326 | 1671 | |
320e9f36 | 1672 | wccpConnectionClose(); |
d723bf6b | 1673 | #endif |
0b0cfcf2 | 1674 | #if USE_WCCPv2 |
1675 | ||
1676 | wccp2ConnectionClose(); | |
1677 | #endif | |
62e76326 | 1678 | |
fff6ad65 | 1679 | releaseServerSockets(); |
d723bf6b | 1680 | commCloseAllSockets(); |
79039294 AR |
1681 | |
1682 | #if USE_SQUID_ESI | |
1683 | Esi::Clean(); | |
1684 | #endif | |
1685 | ||
515ec4dc | 1686 | #if DELAY_POOLS |
62e76326 | 1687 | |
b67e2c8c | 1688 | DelayPools::FreePools(); |
515ec4dc | 1689 | #endif |
62e76326 | 1690 | |
5dae8514 | 1691 | authenticateShutdown(); |
6c1962dd | 1692 | #if USE_WIN32_SERVICE |
1693 | ||
1694 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1695 | #endif | |
62e76326 | 1696 | |
c8f4eac4 | 1697 | Store::Root().sync(); /* Flush pending object writes/unlinks */ |
4d075ba0 | 1698 | #if USE_UNLINKD |
1699 | ||
1700 | unlinkdClose(); /* after sync/flush */ | |
1701 | #endif | |
fc68f6b1 | 1702 | |
fff6ad65 | 1703 | storeDirWriteCleanLogs(0); |
1704 | PrintRusage(); | |
1705 | dumpMallocStats(); | |
c8f4eac4 | 1706 | Store::Root().sync(); /* Flush log writes */ |
fff6ad65 | 1707 | storeLogClose(); |
1708 | accessLogClose(); | |
5b824235 | 1709 | useragentLogClose(); |
c9b99797 | 1710 | refererCloseLog(); |
225644d7 | 1711 | #if WIP_FWD_LOG |
62e76326 | 1712 | |
225644d7 | 1713 | fwdUninit(); |
1714 | #endif | |
62e76326 | 1715 | |
c8f4eac4 | 1716 | Store::Root().sync(); /* Flush log close */ |
59b2d47f | 1717 | StoreFileSystem::FreeAllFs(); |
b9ae18aa | 1718 | DiskIOModule::FreeAllModules(); |
afec404b | 1719 | #if LEAK_CHECK_MODE && 0 /* doesn't work at the moment */ |
62e76326 | 1720 | |
fff6ad65 | 1721 | configFreeMemory(); |
1722 | storeFreeMemory(); | |
33ab18e8 | 1723 | /*stmemFreeMemory(); */ |
fff6ad65 | 1724 | netdbFreeMemory(); |
1725 | ipcacheFreeMemory(); | |
1726 | fqdncacheFreeMemory(); | |
1727 | asnFreeMemory(); | |
26a369ba | 1728 | clientdbFreeMemory(); |
7021844c | 1729 | httpHeaderCleanModule(); |
d2db411c | 1730 | statFreeMemory(); |
f1fc2a8d | 1731 | eventFreeMemory(); |
c68e9c6b | 1732 | mimeFreeMemory(); |
1733 | errorClean(); | |
fff6ad65 | 1734 | #endif |
26a369ba | 1735 | #if !XMALLOC_TRACE |
62e76326 | 1736 | |
54f742e7 | 1737 | if (opt_no_daemon) { |
62e76326 | 1738 | file_close(0); |
1739 | file_close(1); | |
1740 | file_close(2); | |
54f742e7 | 1741 | } |
62e76326 | 1742 | |
33ab18e8 | 1743 | #endif |
fff6ad65 | 1744 | fdDumpOpen(); |
62e76326 | 1745 | |
236d1779 | 1746 | comm_exit(); |
62e76326 | 1747 | |
ddb43c58 | 1748 | memClean(); |
62e76326 | 1749 | |
33ab18e8 | 1750 | #if XMALLOC_TRACE |
62e76326 | 1751 | |
26a369ba | 1752 | xmalloc_find_leaks(); |
62e76326 | 1753 | |
bf8fe701 | 1754 | debugs(1, 0, "Memory used after shutdown: " << xmalloc_total); |
62e76326 | 1755 | |
33ab18e8 | 1756 | #endif |
36a97e19 | 1757 | #if MEM_GEN_TRACE |
62e76326 | 1758 | |
399e85ea | 1759 | log_trace_done(); |
62e76326 | 1760 | |
36a97e19 | 1761 | #endif |
62e76326 | 1762 | |
ab50ee9e | 1763 | if (Config.pidFilename && strcmp(Config.pidFilename, "none") != 0) { |
62e76326 | 1764 | enter_suid(); |
1765 | safeunlink(Config.pidFilename, 0); | |
1766 | leave_suid(); | |
ab50ee9e | 1767 | } |
62e76326 | 1768 | |
bf8fe701 | 1769 | debugs(1, 1, "Squid Cache (Version " << version_string << "): Exiting normally."); |
62e76326 | 1770 | |
0cfa98cb | 1771 | /* |
1772 | * DPW 2006-10-23 | |
1773 | * We used to fclose(debug_log) here if it was set, but then | |
1774 | * we forgot to set it to NULL. That caused some coredumps | |
1775 | * because exit() ends up calling a bunch of destructors and | |
1776 | * such. So rather than forcing the debug_log to close, we'll | |
1777 | * leave it open so that those destructors can write some | |
1778 | * debugging if necessary. The file will be closed anyway when | |
1779 | * the process truly exits. | |
1780 | */ | |
62e76326 | 1781 | |
ae1feb30 | 1782 | exit(shutdown_status); |
fff6ad65 | 1783 | } |
bef81ea5 | 1784 |