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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" |
3ff65596 AR |
37 | #if ICAP_CLIENT |
38 | #include "adaptation/icap/icap_log.h" | |
39 | #endif | |
3ad63615 | 40 | #include "auth/Gadgets.h" |
62ee09ca | 41 | #include "ConfigParser.h" |
aa839030 | 42 | #include "errorpage.h" |
a553a5a3 | 43 | #include "event.h" |
44 | #include "EventLoop.h" | |
62ee09ca | 45 | #include "ExternalACL.h" |
e6ccf245 | 46 | #include "Store.h" |
47 | #include "ICP.h" | |
4daaf3cb | 48 | #include "ident/Ident.h" |
528b2c61 | 49 | #include "HttpReply.h" |
62ee09ca | 50 | #include "pconn.h" |
528b2c61 | 51 | #include "Mem.h" |
3ad63615 AR |
52 | #include "acl/Asn.h" |
53 | #include "acl/Acl.h" | |
75faaa7a | 54 | #include "htcp.h" |
59b2d47f | 55 | #include "StoreFileSystem.h" |
b9ae18aa | 56 | #include "DiskIO/DiskIOModule.h" |
f900210a | 57 | #include "comm.h" |
62ee09ca | 58 | #if USE_EPOLL |
59 | #include "comm_epoll.h" | |
60 | #endif | |
61 | #if USE_KQUEUE | |
62 | #include "comm_kqueue.h" | |
63 | #endif | |
64 | #if USE_POLL | |
65 | #include "comm_poll.h" | |
66 | #endif | |
7cdb47bc | 67 | #if defined(USE_SELECT) || defined(USE_SELECT_WIN32) |
663c0a38 | 68 | #include "comm_select.h" |
69 | #endif | |
985c86bc | 70 | #include "SquidTime.h" |
c8f4eac4 | 71 | #include "SwapDir.h" |
b6b6f466 | 72 | #include "forward.h" |
d9e7ee1f | 73 | #include "MemPool.h" |
9b5c4a9a AJ |
74 | #include "icmp/IcmpSquid.h" |
75 | #include "icmp/net_db.h" | |
6e5db507 | 76 | #include "TextException.h" |
44a47c6e | 77 | |
57afc994 AR |
78 | #if USE_LOADABLE_MODULES |
79 | #include "LoadableModules.h" | |
80 | #endif | |
81 | ||
b958cb0f | 82 | #if ICAP_CLIENT |
26cc52cb | 83 | #include "adaptation/icap/Config.h" |
b958cb0f | 84 | #endif |
6e5db507 | 85 | #if USE_ECAP |
1f3c65fc | 86 | #include "adaptation/ecap/Config.h" |
6e5db507 | 87 | #endif |
b958cb0f AR |
88 | #if USE_ADAPTATION |
89 | #include "adaptation/Config.h" | |
90 | #endif | |
91 | ||
79039294 AR |
92 | #if USE_SQUID_ESI |
93 | #include "esi/Module.h" | |
94 | #endif | |
95 | ||
7b5b7ba8 CT |
96 | #include "fs/Module.h" |
97 | ||
1a774556 | 98 | #if USE_WIN32_SERVICE |
99 | ||
100 | #include "squid_windows.h" | |
101 | #include <process.h> | |
102 | ||
103 | static int opt_install_service = FALSE; | |
104 | static int opt_remove_service = FALSE; | |
105 | static int opt_signal_service = FALSE; | |
106 | static int opt_command_line = FALSE; | |
107 | extern void WIN32_svcstatusupdate(DWORD, DWORD); | |
108 | void WINAPI WIN32_svcHandler(DWORD); | |
109 | ||
110 | #endif | |
111 | ||
63be0a78 | 112 | /** for error reporting from xmalloc and friends */ |
b293c4d8 | 113 | SQUIDCEXTERN void (*failure_notify) (const char *); |
30a4f2a8 | 114 | |
e13ee7ad | 115 | static int opt_parse_cfg_only = 0; |
5e6d4736 | 116 | static char *opt_syslog_facility = NULL; |
30a4f2a8 | 117 | static int icpPortNumOverride = 1; /* Want to detect "-u 0" */ |
e13ee7ad | 118 | static int configured_once = 0; |
30a4f2a8 | 119 | #if MALLOC_DBG |
4d64d74a | 120 | static int malloc_debug_level = 0; |
30a4f2a8 | 121 | #endif |
5cd39a10 | 122 | static volatile int do_reconfigure = 0; |
123 | static volatile int do_rotate = 0; | |
2681d383 | 124 | static volatile int do_shutdown = 0; |
ae1feb30 | 125 | static volatile int shutdown_status = 0; |
4d7add01 | 126 | |
5cd39a10 | 127 | static void mainRotate(void); |
d71e4674 AR |
128 | static void mainReconfigureStart(void); |
129 | static void mainReconfigureFinish(void*); | |
f5b8bbc4 | 130 | static void mainInitialize(void); |
f5b8bbc4 | 131 | static void usage(void); |
63be0a78 | 132 | static void mainParseOptions(int argc, char *argv[]); |
f5b8bbc4 | 133 | static void sendSignal(void); |
134 | static void serverConnectionsOpen(void); | |
d71e4674 | 135 | static void serverConnectionsClose(void); |
bbe199dc | 136 | static void watch_child(char **); |
85407535 | 137 | static void setEffectiveUser(void); |
36a97e19 | 138 | #if MEM_GEN_TRACE |
139 | extern void log_trace_done(); | |
140 | extern void log_trace_init(char *); | |
141 | #endif | |
8ff3fa2e | 142 | static void SquidShutdown(void); |
b6a2f15e | 143 | static void mainSetCwd(void); |
efd900cb | 144 | static int checkRunningPid(void); |
85407535 | 145 | |
b293c4d8 | 146 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 147 | static const char *squid_start_script = "squid_start"; |
b293c4d8 | 148 | #endif |
e18d7fdc | 149 | |
9bc73deb | 150 | #if TEST_ACCESS |
151 | #include "test_access.c" | |
152 | #endif | |
153 | ||
63be0a78 | 154 | /** temporary thunk across to the unrefactored store interface */ |
8ff3fa2e | 155 | |
156 | class StoreRootEngine : public AsyncEngine | |
157 | { | |
158 | ||
159 | public: | |
26ac0430 | 160 | int checkEvents(int timeout) { |
8ff3fa2e | 161 | Store::Root().callback(); |
162 | return EVENT_IDLE; | |
163 | }; | |
164 | }; | |
165 | ||
9688b0ae | 166 | class SignalEngine: public AsyncEngine |
a553a5a3 | 167 | { |
168 | ||
169 | public: | |
e053c141 | 170 | SignalEngine(EventLoop &evtLoop) : loop(evtLoop) {} |
9688b0ae | 171 | virtual int checkEvents(int timeout); |
a553a5a3 | 172 | |
173 | private: | |
26ac0430 | 174 | static void StopEventLoop(void * data) { |
9688b0ae | 175 | static_cast<SignalEngine *>(data)->loop.stop(); |
a553a5a3 | 176 | } |
177 | ||
9688b0ae | 178 | void doShutdown(time_t wait); |
179 | ||
a553a5a3 | 180 | EventLoop &loop; |
181 | }; | |
182 | ||
9688b0ae | 183 | int |
184 | SignalEngine::checkEvents(int timeout) | |
a553a5a3 | 185 | { |
9688b0ae | 186 | PROF_start(SignalEngine_checkEvents); |
fc68f6b1 | 187 | |
a553a5a3 | 188 | if (do_reconfigure) { |
d71e4674 | 189 | mainReconfigureStart(); |
a553a5a3 | 190 | do_reconfigure = 0; |
a553a5a3 | 191 | } else if (do_rotate) { |
192 | mainRotate(); | |
193 | do_rotate = 0; | |
194 | } else if (do_shutdown) { | |
9688b0ae | 195 | doShutdown(do_shutdown > 0 ? (int) Config.shutdownLifetime : 0); |
a553a5a3 | 196 | do_shutdown = 0; |
26ac0430 | 197 | } |
a553a5a3 | 198 | |
9688b0ae | 199 | PROF_stop(SignalEngine_checkEvents); |
200 | return EVENT_IDLE; | |
201 | } | |
a553a5a3 | 202 | |
9688b0ae | 203 | void |
204 | SignalEngine::doShutdown(time_t wait) | |
205 | { | |
206 | debugs(1, 1, "Preparing for shutdown after " << statCounter.client_http.requests << " requests"); | |
207 | debugs(1, 1, "Waiting " << wait << " seconds for active connections to finish"); | |
8ff3fa2e | 208 | |
9688b0ae | 209 | shutting_down = 1; |
210 | ||
211 | #if USE_WIN32_SERVICE | |
212 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, (wait + 1) * 1000); | |
213 | #endif | |
214 | ||
215 | serverConnectionsClose(); | |
216 | eventAdd("SquidShutdown", &StopEventLoop, this, (double) (wait + 1), 1, false); | |
a553a5a3 | 217 | } |
218 | ||
b8d8561b | 219 | static void |
0673c0ba | 220 | usage(void) |
ccff9601 | 221 | { |
0ee4272b | 222 | fprintf(stderr, |
0e657244 | 223 | #if USE_WIN32_SERVICE |
8eb28163 | 224 | "Usage: %s [-cdhirvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal] [-n name] [-O CommandLine]\n" |
0e657244 | 225 | #else |
8eb28163 | 226 | "Usage: %s [-cdhvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal]\n" |
0e657244 | 227 | #endif |
62e76326 | 228 | " -a port Specify HTTP port number (default: %d).\n" |
229 | " -d level Write debugging to stderr also.\n" | |
230 | " -f file Use given config-file instead of\n" | |
231 | " %s\n" | |
232 | " -h Print help message.\n" | |
0e657244 | 233 | #if USE_WIN32_SERVICE |
234 | " -i Installs as a Windows Service (see -n option).\n" | |
235 | #endif | |
62e76326 | 236 | " -k reconfigure|rotate|shutdown|interrupt|kill|debug|check|parse\n" |
237 | " Parse configuration file, then send signal to \n" | |
238 | " running copy (except -k parse) and exit.\n" | |
0e657244 | 239 | #if USE_WIN32_SERVICE |
240 | " -n name Specify Windows Service name to use for service operations\n" | |
241 | " default is: " _WIN_SQUID_DEFAULT_SERVICE_NAME ".\n" | |
242 | " -r Removes a Windows Service (see -n option).\n" | |
243 | #endif | |
5e6d4736 | 244 | " -s | -l facility\n" |
245 | " Enable logging to syslog.\n" | |
62e76326 | 246 | " -u port Specify ICP port number (default: %d), disable with 0.\n" |
247 | " -v Print version.\n" | |
248 | " -z Create swap directories\n" | |
249 | " -C Do not catch fatal signals.\n" | |
8eb28163 | 250 | " -D OBSOLETE. Scheduled for removal.\n" |
62e76326 | 251 | " -F Don't serve any requests until store is rebuilt.\n" |
252 | " -N No daemon mode.\n" | |
0e657244 | 253 | #if USE_WIN32_SERVICE |
254 | " -O options\n" | |
255 | " Set Windows Service Command line options in Registry.\n" | |
256 | #endif | |
62e76326 | 257 | " -R Do not set REUSEADDR on port.\n" |
258 | " -S Double-check swap during rebuild.\n" | |
62e76326 | 259 | " -X Force full debugging.\n" |
260 | " -Y Only return UDP_HIT or UDP_MISS_NOFETCH during fast reload.\n", | |
7dbca7a4 | 261 | APP_SHORTNAME, CACHE_HTTP_PORT, DefaultConfigFile, CACHE_ICP_PORT); |
77ffc99f | 262 | exit(1); |
ccff9601 | 263 | } |
264 | ||
63be0a78 | 265 | /** |
266 | * Parse the parameters received via command line interface. | |
267 | * | |
d85b8894 AJ |
268 | \param argc Number of options received on command line |
269 | \param argv List of parameters received on command line | |
63be0a78 | 270 | */ |
b8d8561b | 271 | static void |
272 | mainParseOptions(int argc, char *argv[]) | |
090089c4 | 273 | { |
090089c4 | 274 | extern char *optarg; |
4d64d74a | 275 | int c; |
090089c4 | 276 | |
0e657244 | 277 | #if USE_WIN32_SERVICE |
5e6d4736 | 278 | while ((c = getopt(argc, argv, "CDFNO:RSVYXa:d:f:hik:m::n:rsl:u:vz?")) != -1) |
0e657244 | 279 | #else |
05f1c52c | 280 | while ((c = getopt(argc, argv, "CDFNRSYXa:d:f:hk:m::sl:u:vz?")) != -1) |
0e657244 | 281 | #endif |
9b7292ce | 282 | { |
283 | ||
26ac0430 | 284 | switch (c) { |
62e76326 | 285 | |
286 | case 'C': | |
63be0a78 | 287 | /** \par C |
288 | * Unset/disabel global option for catchign signals. opt_catch_signals */ | |
62e76326 | 289 | opt_catch_signals = 0; |
290 | break; | |
291 | ||
292 | case 'D': | |
63be0a78 | 293 | /** \par D |
8eb28163 AJ |
294 | * OBSOLETE: WAS: override to prevent optional startup DNS tests. */ |
295 | debugs(1,DBG_CRITICAL, "WARNING: -D command-line option is obsolete."); | |
62e76326 | 296 | break; |
297 | ||
298 | case 'F': | |
63be0a78 | 299 | /** \par F |
300 | * Set global option for foreground rebuild. opt_foreground_rebuild */ | |
62e76326 | 301 | opt_foreground_rebuild = 1; |
302 | break; | |
303 | ||
304 | case 'N': | |
63be0a78 | 305 | /** \par N |
306 | * Set global option for 'no_daemon' mode. opt_no_daemon */ | |
62e76326 | 307 | opt_no_daemon = 1; |
308 | break; | |
63be0a78 | 309 | |
0e657244 | 310 | #if USE_WIN32_SERVICE |
311 | ||
312 | case 'O': | |
63be0a78 | 313 | /** \par O |
314 | * Set global option. opt_command_lin and WIN32_Command_Line */ | |
0e657244 | 315 | opt_command_line = 1; |
316 | WIN32_Command_Line = xstrdup(optarg); | |
317 | break; | |
318 | #endif | |
62e76326 | 319 | |
320 | case 'R': | |
63be0a78 | 321 | /** \par R |
322 | * Unset/disable global option opt_reuseaddr */ | |
62e76326 | 323 | opt_reuseaddr = 0; |
324 | break; | |
325 | ||
326 | case 'S': | |
63be0a78 | 327 | /** \par S |
328 | * Set global option opt_store_doublecheck */ | |
62e76326 | 329 | opt_store_doublecheck = 1; |
330 | break; | |
331 | ||
62e76326 | 332 | case 'X': |
63be0a78 | 333 | /** \par X |
334 | * Force full debugging */ | |
62493678 AJ |
335 | Debug::parseOptions("rotate=0 ALL,9"); |
336 | Debug::override_X = 1; | |
62e76326 | 337 | sigusr2_handle(SIGUSR2); |
62e76326 | 338 | break; |
339 | ||
340 | case 'Y': | |
63be0a78 | 341 | /** \par Y |
342 | * Set global option opt_reload_hit_only */ | |
62e76326 | 343 | opt_reload_hit_only = 1; |
62e76326 | 344 | break; |
345 | ||
0e657244 | 346 | #if USE_WIN32_SERVICE |
347 | ||
348 | case 'i': | |
63be0a78 | 349 | /** \par i |
350 | * Set global option opt_install_service (to TRUE) */ | |
0e657244 | 351 | opt_install_service = TRUE; |
0e657244 | 352 | break; |
0e657244 | 353 | #endif |
354 | ||
62e76326 | 355 | case 'a': |
63be0a78 | 356 | /** \par a |
357 | * Add optional HTTP port as given following the option */ | |
62e76326 | 358 | add_http_port(optarg); |
62e76326 | 359 | break; |
360 | ||
361 | case 'd': | |
63be0a78 | 362 | /** \par d |
62493678 AJ |
363 | * Set global option Debug::log_stderr to the number given follwoign the option */ |
364 | Debug::log_stderr = atoi(optarg); | |
62e76326 | 365 | break; |
366 | ||
367 | case 'f': | |
63be0a78 | 368 | /** \par f |
369 | * Load the file given instead of the default squid.conf. */ | |
62e76326 | 370 | xfree(ConfigFile); |
62e76326 | 371 | ConfigFile = xstrdup(optarg); |
62e76326 | 372 | break; |
373 | ||
374 | case 'k': | |
63be0a78 | 375 | /** \par k |
376 | * Run the administrative action given following the option */ | |
fc68f6b1 | 377 | |
63be0a78 | 378 | /** \li When its an unknown option display the usage help. */ |
62e76326 | 379 | if ((int) strlen(optarg) < 1) |
380 | usage(); | |
381 | ||
382 | if (!strncmp(optarg, "reconfigure", strlen(optarg))) | |
63be0a78 | 383 | /** \li On reconfigure send SIGHUP. */ |
62e76326 | 384 | opt_send_signal = SIGHUP; |
385 | else if (!strncmp(optarg, "rotate", strlen(optarg))) | |
63be0a78 | 386 | /** \li On rotate send SIGQUIT or SIGUSR1. */ |
7e7a0442 | 387 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 388 | |
389 | opt_send_signal = SIGQUIT; | |
390 | ||
e3175d1f | 391 | #else |
62e76326 | 392 | |
393 | opt_send_signal = SIGUSR1; | |
394 | ||
e3175d1f | 395 | #endif |
62e76326 | 396 | |
397 | else if (!strncmp(optarg, "debug", strlen(optarg))) | |
63be0a78 | 398 | /** \li On debug send SIGTRAP or SIGUSR2. */ |
7e7a0442 | 399 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 400 | |
401 | opt_send_signal = SIGTRAP; | |
402 | ||
e3175d1f | 403 | #else |
62e76326 | 404 | |
405 | opt_send_signal = SIGUSR2; | |
406 | ||
407 | #endif | |
408 | ||
409 | else if (!strncmp(optarg, "shutdown", strlen(optarg))) | |
63be0a78 | 410 | /** \li On shutdown send SIGTERM. */ |
62e76326 | 411 | opt_send_signal = SIGTERM; |
412 | else if (!strncmp(optarg, "interrupt", strlen(optarg))) | |
63be0a78 | 413 | /** \li On interrupt send SIGINT. */ |
62e76326 | 414 | opt_send_signal = SIGINT; |
415 | else if (!strncmp(optarg, "kill", strlen(optarg))) | |
63be0a78 | 416 | /** \li On kill send SIGKILL. */ |
62e76326 | 417 | opt_send_signal = SIGKILL; |
ae1feb30 | 418 | |
419 | #ifdef SIGTTIN | |
420 | ||
421 | else if (!strncmp(optarg, "restart", strlen(optarg))) | |
63be0a78 | 422 | /** \li On restart send SIGTTIN. (exit and restart by parent) */ |
423 | opt_send_signal = SIGTTIN; | |
ae1feb30 | 424 | |
425 | #endif | |
426 | ||
62e76326 | 427 | else if (!strncmp(optarg, "check", strlen(optarg))) |
63be0a78 | 428 | /** \li On check send 0 / SIGNULL. */ |
62e76326 | 429 | opt_send_signal = 0; /* SIGNULL */ |
430 | else if (!strncmp(optarg, "parse", strlen(optarg))) | |
63be0a78 | 431 | /** \li On parse set global flag to re-parse the config file only. */ |
432 | opt_parse_cfg_only = 1; | |
62e76326 | 433 | else |
434 | usage(); | |
435 | ||
436 | break; | |
437 | ||
438 | case 'm': | |
63be0a78 | 439 | /** \par m |
440 | * Set global malloc_debug_level to the value given following the option. | |
441 | * if none is given it toggles the xmalloc_trace option on/off */ | |
62e76326 | 442 | if (optarg) { |
30a4f2a8 | 443 | #if MALLOC_DBG |
fc68f6b1 | 444 | malloc_debug_level = atoi(optarg); |
30a4f2a8 | 445 | #else |
fc68f6b1 | 446 | fatal("Need to add -DMALLOC_DBG when compiling to use -mX option"); |
33ab18e8 | 447 | #endif |
62e76326 | 448 | |
449 | } else { | |
33ab18e8 | 450 | #if XMALLOC_TRACE |
62e76326 | 451 | xmalloc_trace = !xmalloc_trace; |
33ab18e8 | 452 | #else |
62e76326 | 453 | fatal("Need to configure --enable-xmalloc-debug-trace to use -m option"); |
30a4f2a8 | 454 | #endif |
62e76326 | 455 | } |
d9e7ee1f | 456 | break; |
d9e7ee1f | 457 | |
0e657244 | 458 | #if USE_WIN32_SERVICE |
459 | ||
460 | case 'n': | |
63be0a78 | 461 | /** \par n |
462 | * Set global option opt_signal_service (to TRUE). | |
463 | * Stores the additional parameter given in global WIN32_Service_name */ | |
0e657244 | 464 | xfree(WIN32_Service_name); |
465 | ||
466 | WIN32_Service_name = xstrdup(optarg); | |
467 | ||
468 | opt_signal_service = TRUE; | |
469 | ||
470 | break; | |
471 | ||
472 | case 'r': | |
63be0a78 | 473 | /** \par r |
474 | * Set global option opt_remove_service (to TRUE) */ | |
0e657244 | 475 | opt_remove_service = TRUE; |
476 | ||
477 | break; | |
478 | ||
479 | #endif | |
480 | ||
5e6d4736 | 481 | case 'l': |
63be0a78 | 482 | /** \par l |
483 | * Stores the syslog facility name in global opt_syslog_facility | |
484 | * then performs actions for -s option. */ | |
5e6d4736 | 485 | opt_syslog_facility = xstrdup(optarg); |
486 | ||
62e76326 | 487 | case 's': |
63be0a78 | 488 | /** \par s |
489 | * Initialize the syslog for output */ | |
c307aec3 | 490 | #if HAVE_SYSLOG |
62e76326 | 491 | |
5e6d4736 | 492 | _db_set_syslog(opt_syslog_facility); |
0e657244 | 493 | |
62e76326 | 494 | break; |
0e657244 | 495 | |
c307aec3 | 496 | #else |
62e76326 | 497 | |
498 | fatal("Logging to syslog not available on this platform"); | |
0e657244 | 499 | |
62e76326 | 500 | /* NOTREACHED */ |
501 | #endif | |
502 | ||
503 | case 'u': | |
63be0a78 | 504 | /** \par u |
505 | * Store the ICP port number given in global option icpPortNumOverride | |
506 | * ensuring its a positive number. */ | |
62e76326 | 507 | icpPortNumOverride = atoi(optarg); |
508 | ||
509 | if (icpPortNumOverride < 0) | |
510 | icpPortNumOverride = 0; | |
511 | ||
512 | break; | |
513 | ||
514 | case 'v': | |
63be0a78 | 515 | /** \par v |
516 | * Display squid version and build information. Then exit. */ | |
62e76326 | 517 | printf("Squid Cache: Version %s\nconfigure options: %s\n", version_string, SQUID_CONFIGURE_OPTIONS); |
518 | ||
1a774556 | 519 | #if USE_WIN32_SERVICE |
520 | ||
521 | printf("Compiled as Windows System Service.\n"); | |
522 | ||
523 | #endif | |
524 | ||
62e76326 | 525 | exit(0); |
526 | ||
527 | /* NOTREACHED */ | |
528 | ||
529 | case 'z': | |
63be0a78 | 530 | /** \par z |
62493678 AJ |
531 | * Set global option Debug::log_stderr and opt_create_swap_dirs */ |
532 | Debug::log_stderr = 1; | |
62e76326 | 533 | opt_create_swap_dirs = 1; |
62e76326 | 534 | break; |
535 | ||
63be0a78 | 536 | case 'h': |
537 | ||
62e76326 | 538 | case '?': |
539 | ||
540 | default: | |
63be0a78 | 541 | /** \par h,?, or unknown |
542 | * \copydoc usage() */ | |
62e76326 | 543 | usage(); |
544 | ||
545 | break; | |
546 | } | |
9b7292ce | 547 | |
090089c4 | 548 | } |
4d64d74a | 549 | } |
090089c4 | 550 | |
7a2f978b | 551 | /* ARGSUSED */ |
b293c4d8 | 552 | void |
9b7292ce | 553 | rotate_logs(int sig) |
554 | { | |
5cd39a10 | 555 | do_rotate = 1; |
a50bfe93 | 556 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 557 | #if !HAVE_SIGACTION |
62e76326 | 558 | |
30a4f2a8 | 559 | signal(sig, rotate_logs); |
560 | #endif | |
a50bfe93 | 561 | #endif |
30a4f2a8 | 562 | } |
563 | ||
7a2f978b | 564 | /* ARGSUSED */ |
b293c4d8 | 565 | void |
9b7292ce | 566 | reconfigure(int sig) |
567 | { | |
5cd39a10 | 568 | do_reconfigure = 1; |
a50bfe93 | 569 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 570 | #if !HAVE_SIGACTION |
62e76326 | 571 | |
30a4f2a8 | 572 | signal(sig, reconfigure); |
573 | #endif | |
a50bfe93 | 574 | #endif |
30a4f2a8 | 575 | } |
576 | ||
b8d8561b | 577 | void |
9b7292ce | 578 | shut_down(int sig) |
579 | { | |
2681d383 | 580 | do_shutdown = sig == SIGINT ? -1 : 1; |
ae1feb30 | 581 | #ifdef SIGTTIN |
582 | ||
583 | if (SIGTTIN == sig) | |
584 | shutdown_status = 1; | |
585 | ||
586 | #endif | |
a50bfe93 | 587 | #ifndef _SQUID_MSWIN_ |
cadc2d55 | 588 | #ifdef KILL_PARENT_OPT |
62e76326 | 589 | |
5cd39a10 | 590 | if (getppid() > 1) { |
d4fe2ba0 | 591 | debugs(1, 1, "Killing master process, pid " << getppid()); |
62e76326 | 592 | |
593 | if (kill(getppid(), sig) < 0) | |
36584579 | 594 | debugs(1, 1, "kill " << getppid() << ": " << xstrerror()); |
88738790 | 595 | } |
62e76326 | 596 | |
cadc2d55 | 597 | #endif |
6e40f263 | 598 | #if SA_RESETHAND == 0 |
599 | signal(SIGTERM, SIG_DFL); | |
62e76326 | 600 | |
6e40f263 | 601 | signal(SIGINT, SIG_DFL); |
62e76326 | 602 | |
a50bfe93 | 603 | #endif |
6e40f263 | 604 | #endif |
30a4f2a8 | 605 | } |
606 | ||
24382924 | 607 | static void |
9b7292ce | 608 | serverConnectionsOpen(void) |
609 | { | |
d193a436 | 610 | clientOpenListenSockets(); |
15df8349 | 611 | icpConnectionsOpen(); |
ace287ee | 612 | #if USE_HTCP |
62e76326 | 613 | |
ace287ee | 614 | htcpInit(); |
615 | #endif | |
678c6099 | 616 | #ifdef SQUID_SNMP |
62e76326 | 617 | |
3265e68d | 618 | snmpConnectionOpen(); |
320e9f36 | 619 | #endif |
eb824054 | 620 | #if USE_WCCP |
62e76326 | 621 | |
320e9f36 | 622 | wccpConnectionOpen(); |
2bbd722b | 623 | #endif |
62e76326 | 624 | |
0b0cfcf2 | 625 | #if USE_WCCPv2 |
626 | ||
627 | wccp2ConnectionOpen(); | |
628 | #endif | |
629 | ||
5ecceaa4 | 630 | clientdbInit(); |
cc192b50 | 631 | icmpEngine.Open(); |
67508012 | 632 | netdbInit(); |
f899fac1 | 633 | asnInit(); |
b0dd28ba | 634 | ACL::Initialize(); |
85034133 | 635 | peerSelectInit(); |
62e76326 | 636 | |
afd88fbe | 637 | carpInit(); |
f7e1d9ce HN |
638 | peerUserHashInit(); |
639 | peerSourceHashInit(); | |
5f3f8d0e | 640 | } |
641 | ||
d71e4674 | 642 | static void |
9b7292ce | 643 | serverConnectionsClose(void) |
644 | { | |
0a5a8601 | 645 | assert(shutting_down || reconfiguring); |
c0fbae16 | 646 | clientHttpConnectionsClose(); |
17e6c0a1 | 647 | icpConnectionShutdown(); |
72549e05 | 648 | #if USE_HTCP |
62e76326 | 649 | |
72549e05 | 650 | htcpSocketShutdown(); |
651 | #endif | |
62e76326 | 652 | |
cc192b50 | 653 | icmpEngine.Close(); |
15df8349 | 654 | #ifdef SQUID_SNMP |
62e76326 | 655 | |
17e6c0a1 | 656 | snmpConnectionShutdown(); |
320e9f36 | 657 | #endif |
eb824054 | 658 | #if USE_WCCP |
62e76326 | 659 | |
0b0cfcf2 | 660 | wccpConnectionClose(); |
661 | #endif | |
662 | #if USE_WCCPv2 | |
663 | ||
664 | wccp2ConnectionClose(); | |
15df8349 | 665 | #endif |
62e76326 | 666 | |
4bac8de8 | 667 | asnFreeMemory(); |
5f3f8d0e | 668 | } |
669 | ||
b8d8561b | 670 | static void |
d71e4674 | 671 | mainReconfigureStart(void) |
9b7292ce | 672 | { |
bf8fe701 | 673 | debugs(1, 1, "Reconfiguring Squid Cache (version " << version_string << ")..."); |
5cd39a10 | 674 | reconfiguring = 1; |
d71e4674 AR |
675 | |
676 | // Initiate asynchronous closing sequence | |
15df8349 | 677 | serverConnectionsClose(); |
17e6c0a1 | 678 | icpConnectionClose(); |
72549e05 | 679 | #if USE_HTCP |
62e76326 | 680 | |
72549e05 | 681 | htcpSocketClose(); |
682 | #endif | |
17e6c0a1 | 683 | #ifdef SQUID_SNMP |
62e76326 | 684 | |
17e6c0a1 | 685 | snmpConnectionClose(); |
320e9f36 | 686 | #endif |
3c573763 | 687 | #if USE_DNSSERVERS |
62e76326 | 688 | |
74addf6c | 689 | dnsShutdown(); |
3c573763 | 690 | #else |
62e76326 | 691 | |
7b724b86 | 692 | idnsShutdown(); |
eb824054 | 693 | #endif |
62e76326 | 694 | |
74addf6c | 695 | redirectShutdown(); |
696 | authenticateShutdown(); | |
d9572179 | 697 | externalAclShutdown(); |
2db68ce5 | 698 | storeDirCloseSwapLogs(); |
2e923080 | 699 | storeLogClose(); |
700 | accessLogClose(); | |
3ff65596 AR |
701 | #if ICAP_CLIENT |
702 | icapLogClose(); | |
703 | #endif | |
2e923080 | 704 | useragentLogClose(); |
705 | refererCloseLog(); | |
d71e4674 AR |
706 | |
707 | eventAdd("mainReconfigureFinish", &mainReconfigureFinish, NULL, 0, 1, | |
26ac0430 | 708 | false); |
d71e4674 AR |
709 | } |
710 | ||
711 | static void | |
26ac0430 AJ |
712 | mainReconfigureFinish(void *) |
713 | { | |
d71e4674 AR |
714 | debugs(1, 3, "finishing reconfiguring"); |
715 | ||
c68e9c6b | 716 | errorClean(); |
3aa4adbc | 717 | enter_suid(); /* root to read config file */ |
936b23cd AJ |
718 | |
719 | // we may have disabled the need for PURGE | |
e1381638 | 720 | if (Config2.onoff.enable_purge) |
936b23cd AJ |
721 | Config2.onoff.enable_purge = 2; |
722 | ||
dd9b1081 | 723 | parseConfigFile(ConfigFile); |
936b23cd | 724 | |
c642c141 | 725 | setUmask(Config.umask); |
97244680 | 726 | Mem::Report(); |
3aa4adbc | 727 | setEffectiveUser(); |
62493678 | 728 | _db_init(Debug::cache_log, Debug::debugOptions); |
429fdbec | 729 | ipcache_restart(); /* clear stuck entries */ |
94439e4e | 730 | authenticateUserCacheRestart(); /* clear stuck ACL entries */ |
429fdbec | 731 | fqdncache_restart(); /* sigh, fqdncache too */ |
0e70aa1e | 732 | parseEtcHosts(); |
53ad48e6 | 733 | errorInitialize(); /* reload error pages */ |
2e923080 | 734 | accessLogInit(); |
3ff65596 AR |
735 | #if ICAP_CLIENT |
736 | icapLogOpen(); | |
737 | #endif | |
2e923080 | 738 | storeLogOpen(); |
739 | useragentOpenLog(); | |
740 | refererOpenLog(); | |
3c573763 | 741 | #if USE_DNSSERVERS |
62e76326 | 742 | |
74addf6c | 743 | dnsInit(); |
3c573763 | 744 | #else |
62e76326 | 745 | |
7b724b86 | 746 | idnsInit(); |
eb824054 | 747 | #endif |
62e76326 | 748 | |
74addf6c | 749 | redirectInit(); |
e6ccf245 | 750 | authenticateInit(&Config.authConfiguration); |
d9572179 | 751 | externalAclInit(); |
1f38f50a | 752 | #if USE_WCCP |
62e76326 | 753 | |
1f38f50a | 754 | wccpInit(); |
755 | #endif | |
0b0cfcf2 | 756 | #if USE_WCCPv2 |
757 | ||
758 | wccp2Init(); | |
759 | #endif | |
62e76326 | 760 | |
0ffd22bc | 761 | serverConnectionsOpen(); |
9c2e9b50 | 762 | |
3ee2b4f8 | 763 | neighbors_init(); |
9c2e9b50 | 764 | |
2db68ce5 | 765 | storeDirOpenSwapLogs(); |
9c2e9b50 | 766 | |
9c021a38 | 767 | mimeInit(Config.mimeTablePathname); |
9c2e9b50 | 768 | |
926375e6 | 769 | if (Config.onoff.announce) { |
770 | if (!eventFind(start_announce, NULL)) | |
771 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
772 | } else { | |
773 | if (eventFind(start_announce, NULL)) | |
774 | eventDelete(start_announce, NULL); | |
775 | } | |
776 | ||
b8890359 | 777 | writePidFile(); /* write PID file */ |
9c2e9b50 | 778 | |
bf8fe701 | 779 | debugs(1, 1, "Ready to serve requests."); |
9c2e9b50 | 780 | |
5cd39a10 | 781 | reconfiguring = 0; |
782 | } | |
783 | ||
784 | static void | |
9b7292ce | 785 | mainRotate(void) |
786 | { | |
cc192b50 | 787 | icmpEngine.Close(); |
3c573763 | 788 | #if USE_DNSSERVERS |
e40aa8da | 789 | dnsShutdown(); |
3c573763 | 790 | #endif |
e40aa8da | 791 | redirectShutdown(); |
792 | authenticateShutdown(); | |
d9572179 | 793 | externalAclShutdown(); |
0a6dd8fb | 794 | |
5cd39a10 | 795 | _db_rotate_log(); /* cache.log */ |
796 | storeDirWriteCleanLogs(1); | |
797 | storeLogRotate(); /* store.log */ | |
798 | accessLogRotate(); /* access.log */ | |
799 | useragentRotateLog(); /* useragent.log */ | |
fd2c5549 | 800 | refererRotateLog(); /* referer.log */ |
3ff65596 AR |
801 | #if ICAP_CLIENT |
802 | icapLogRotate(); /*icap.log*/ | |
803 | #endif | |
225644d7 | 804 | #if WIP_FWD_LOG |
805 | fwdLogRotate(); | |
806 | #endif | |
62e76326 | 807 | |
cc192b50 | 808 | icmpEngine.Open(); |
3c573763 | 809 | #if USE_DNSSERVERS |
e40aa8da | 810 | dnsInit(); |
3c573763 | 811 | #endif |
e40aa8da | 812 | redirectInit(); |
e6ccf245 | 813 | authenticateInit(&Config.authConfiguration); |
d9572179 | 814 | externalAclInit(); |
5f3f8d0e | 815 | } |
816 | ||
067bea91 | 817 | static void |
9b7292ce | 818 | setEffectiveUser(void) |
819 | { | |
fc68f6b1 | 820 | keepCapabilities(); |
85407535 | 821 | leave_suid(); /* Run as non privilegied user */ |
cd377065 | 822 | #ifdef _SQUID_OS2_ |
62e76326 | 823 | |
cd377065 | 824 | return; |
825 | #endif | |
62e76326 | 826 | |
85407535 | 827 | if (geteuid() == 0) { |
bf8fe701 | 828 | debugs(0, 0, "Squid is not safe to run as root! If you must"); |
829 | debugs(0, 0, "start Squid as root, then you must configure"); | |
830 | debugs(0, 0, "it to run as a non-priveledged user with the"); | |
831 | debugs(0, 0, "'cache_effective_user' option in the config file."); | |
62e76326 | 832 | fatal("Don't run Squid as root, set 'cache_effective_user'!"); |
85407535 | 833 | } |
834 | } | |
835 | ||
b6a2f15e | 836 | static void |
9b7292ce | 837 | mainSetCwd(void) |
838 | { | |
4a504376 | 839 | char pathbuf[MAXPATHLEN]; |
62e76326 | 840 | |
b6a2f15e | 841 | if (Config.coredump_dir) { |
62e76326 | 842 | if (0 == strcmp("none", Config.coredump_dir)) { |
843 | (void) 0; | |
844 | } else if (chdir(Config.coredump_dir) == 0) { | |
bf8fe701 | 845 | debugs(0, 1, "Set Current Directory to " << Config.coredump_dir); |
62e76326 | 846 | return; |
847 | } else { | |
bf8fe701 | 848 | debugs(50, 0, "chdir: " << Config.coredump_dir << ": " << xstrerror()); |
62e76326 | 849 | } |
b6a2f15e | 850 | } |
62e76326 | 851 | |
02e8115e | 852 | /* If we don't have coredump_dir or couldn't cd there, report current dir */ |
4a504376 | 853 | if (getcwd(pathbuf, MAXPATHLEN)) { |
bf8fe701 | 854 | debugs(0, 1, "Current Directory is " << pathbuf); |
4a504376 | 855 | } else { |
bf8fe701 | 856 | debugs(50, 0, "WARNING: Can't find current directory, getcwd: " << xstrerror()); |
4a504376 | 857 | } |
b6a2f15e | 858 | } |
859 | ||
b67e2c8c | 860 | #if DELAY_POOLS |
861 | #include "DelayPools.h" | |
862 | #endif | |
863 | ||
b8d8561b | 864 | static void |
9b7292ce | 865 | mainInitialize(void) |
866 | { | |
efd900cb | 867 | /* chroot if configured to run inside chroot */ |
62e76326 | 868 | |
64b0a10d | 869 | if (Config.chroot_dir && (chroot(Config.chroot_dir) != 0 || chdir("/") != 0)) { |
62e76326 | 870 | fatal("failed to chroot"); |
efd900cb | 871 | } |
62e76326 | 872 | |
1758c627 | 873 | if (opt_catch_signals) { |
62e76326 | 874 | squid_signal(SIGSEGV, death, SA_NODEFER | SA_RESETHAND); |
875 | squid_signal(SIGBUS, death, SA_NODEFER | SA_RESETHAND); | |
44f99671 | 876 | } |
62e76326 | 877 | |
30a4f2a8 | 878 | squid_signal(SIGPIPE, SIG_IGN, SA_RESTART); |
879 | squid_signal(SIGCHLD, sig_child, SA_NODEFER | SA_RESTART); | |
44f99671 | 880 | |
85407535 | 881 | setEffectiveUser(); |
62e76326 | 882 | |
30a4f2a8 | 883 | if (icpPortNumOverride != 1) |
62e76326 | 884 | Config.Port.icp = (u_short) icpPortNumOverride; |
30a4f2a8 | 885 | |
62493678 | 886 | _db_init(Debug::cache_log, Debug::debugOptions); |
62e76326 | 887 | |
62493678 | 888 | fd_open(fileno(debug_log), FD_LOG, Debug::cache_log); |
62e76326 | 889 | |
71a17702 | 890 | #if MEM_GEN_TRACE |
62e76326 | 891 | |
71a17702 | 892 | log_trace_init("/tmp/squid.alloc"); |
62e76326 | 893 | |
71a17702 | 894 | #endif |
62e76326 | 895 | |
bf8fe701 | 896 | debugs(1, 0, "Starting Squid Cache version " << version_string << " for " << CONFIG_HOST_TYPE << "..."); |
62e76326 | 897 | |
ec4daaa5 | 898 | #ifdef _SQUID_WIN32_ |
b293c4d8 | 899 | |
900 | if (WIN32_run_mode == _WIN_SQUID_RUN_MODE_SERVICE) { | |
bf8fe701 | 901 | debugs(1, 0, "Running as " << WIN32_Service_name << " Windows System Service on " << WIN32_OS_string); |
902 | debugs(1, 0, "Service command line is: " << WIN32_Service_Command_Line); | |
b293c4d8 | 903 | } else |
bf8fe701 | 904 | debugs(1, 0, "Running on " << WIN32_OS_string); |
b293c4d8 | 905 | |
906 | #endif | |
907 | ||
36584579 | 908 | debugs(1, 1, "Process ID " << getpid()); |
62e76326 | 909 | |
bf8fe701 | 910 | debugs(1, 1, "With " << Squid_MaxFD << " file descriptors available"); |
5f3f8d0e | 911 | |
6c1962dd | 912 | #ifdef _SQUID_MSWIN_ |
913 | ||
bf8fe701 | 914 | debugs(1, 1, "With " << _getmaxstdio() << " CRT stdio descriptors available"); |
6c1962dd | 915 | |
916 | if (WIN32_Socks_initialized) | |
bf8fe701 | 917 | debugs(1, 1, "Windows sockets initialized"); |
6c1962dd | 918 | |
babd1fd5 | 919 | if (WIN32_OS_version > _WIN_OS_WINNT) { |
26ac0430 | 920 | WIN32_IpAddrChangeMonitorInit(); |
babd1fd5 | 921 | } |
922 | ||
6c1962dd | 923 | #endif |
924 | ||
9f75c559 | 925 | if (!configured_once) |
62e76326 | 926 | disk_init(); /* disk_init must go before ipcache_init() */ |
927 | ||
5f3f8d0e | 928 | ipcache_init(); |
62e76326 | 929 | |
f88bb09c | 930 | fqdncache_init(); |
62e76326 | 931 | |
0e70aa1e | 932 | parseEtcHosts(); |
62e76326 | 933 | |
3c573763 | 934 | #if USE_DNSSERVERS |
62e76326 | 935 | |
74addf6c | 936 | dnsInit(); |
62e76326 | 937 | |
3c573763 | 938 | #else |
62e76326 | 939 | |
7b724b86 | 940 | idnsInit(); |
62e76326 | 941 | |
eb824054 | 942 | #endif |
62e76326 | 943 | |
74addf6c | 944 | redirectInit(); |
62e76326 | 945 | |
e6ccf245 | 946 | authenticateInit(&Config.authConfiguration); |
62e76326 | 947 | |
d9572179 | 948 | externalAclInit(); |
62e76326 | 949 | |
b012353a | 950 | useragentOpenLog(); |
62e76326 | 951 | |
fd2c5549 | 952 | refererOpenLog(); |
62e76326 | 953 | |
2ac76861 | 954 | httpHeaderInitModule(); /* must go before any header processing (e.g. the one in errorInitialize) */ |
62e76326 | 955 | |
2246b732 | 956 | httpReplyInitModule(); /* must go before accepting replies */ |
62e76326 | 957 | |
9b312a19 | 958 | errorInitialize(); |
62e76326 | 959 | |
7a2f978b | 960 | accessLogInit(); |
62e76326 | 961 | |
e1381638 | 962 | #if ICAP_CLIENT |
3ff65596 AR |
963 | icapLogOpen(); |
964 | #endif | |
965 | ||
3898f57f | 966 | #if USE_IDENT |
4daaf3cb | 967 | Ident::Init(); |
3898f57f | 968 | #endif |
4daaf3cb | 969 | |
5e14bf6d | 970 | #ifdef SQUID_SNMP |
62e76326 | 971 | |
5e14bf6d | 972 | snmpInit(); |
62e76326 | 973 | |
5e14bf6d | 974 | #endif |
30a4f2a8 | 975 | #if MALLOC_DBG |
62e76326 | 976 | |
5f3f8d0e | 977 | malloc_debug(0, malloc_debug_level); |
62e76326 | 978 | |
5f3f8d0e | 979 | #endif |
980 | ||
dbe4fd8e | 981 | if (!configured_once) { |
a3d0a19d | 982 | #if USE_UNLINKD |
62e76326 | 983 | unlinkdInit(); |
984 | #endif | |
985 | ||
986 | urlInitialize(); | |
62e76326 | 987 | statInit(); |
988 | storeInit(); | |
989 | mainSetCwd(); | |
990 | /* after this point we want to see the mallinfo() output */ | |
991 | do_mallinfo = 1; | |
992 | mimeInit(Config.mimeTablePathname); | |
62e76326 | 993 | refreshInit(); |
0d7e5d78 | 994 | #if DELAY_POOLS |
62e76326 | 995 | |
996 | DelayPools::Init(); | |
0d7e5d78 | 997 | #endif |
62e76326 | 998 | |
b6b6f466 | 999 | FwdState::initModule(); |
62ee09ca | 1000 | /* register the modules in the cache manager menus */ |
62ee09ca | 1001 | |
a08f1b5a | 1002 | cbdataRegisterWithCacheManager(); |
62ee09ca | 1003 | /* These use separate calls so that the comm loops can eventually |
1004 | * coexist. | |
1005 | */ | |
62ee09ca | 1006 | |
15b3c0d7 | 1007 | eventInit(); |
610ee341 | 1008 | |
26ac0430 | 1009 | // TODO: pconn is a good candidate for new-style registration |
6852be71 | 1010 | // PconnModule::GetInstance()->registerWithCacheManager(); |
26ac0430 | 1011 | // moved to PconnModule::PconnModule() |
5f3f8d0e | 1012 | } |
62e76326 | 1013 | |
1f38f50a | 1014 | #if USE_WCCP |
1015 | wccpInit(); | |
62e76326 | 1016 | |
0b0cfcf2 | 1017 | #endif |
1018 | #if USE_WCCPv2 | |
1019 | ||
1020 | wccp2Init(); | |
1021 | ||
1f38f50a | 1022 | #endif |
62e76326 | 1023 | |
2285407f | 1024 | serverConnectionsOpen(); |
62e76326 | 1025 | |
3ee2b4f8 | 1026 | neighbors_init(); |
fc68f6b1 | 1027 | |
5f5e883f | 1028 | // neighborsRegisterWithCacheManager(); //moved to neighbors_init() |
62e76326 | 1029 | |
efd900cb | 1030 | if (Config.chroot_dir) |
62e76326 | 1031 | no_suid(); |
1032 | ||
dbe4fd8e | 1033 | if (!configured_once) |
62e76326 | 1034 | writePidFile(); /* write PID file */ |
0a5b9b32 | 1035 | |
7e7a0442 | 1036 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 1037 | |
e3175d1f | 1038 | squid_signal(SIGQUIT, rotate_logs, SA_RESTART); |
62e76326 | 1039 | |
e3175d1f | 1040 | squid_signal(SIGTRAP, sigusr2_handle, SA_RESTART); |
62e76326 | 1041 | |
e3175d1f | 1042 | #else |
62e76326 | 1043 | |
30a4f2a8 | 1044 | squid_signal(SIGUSR1, rotate_logs, SA_RESTART); |
62e76326 | 1045 | |
30a4f2a8 | 1046 | squid_signal(SIGUSR2, sigusr2_handle, SA_RESTART); |
62e76326 | 1047 | |
9fc0b4b8 | 1048 | #endif |
62e76326 | 1049 | |
30a4f2a8 | 1050 | squid_signal(SIGHUP, reconfigure, SA_RESTART); |
62e76326 | 1051 | |
30a4f2a8 | 1052 | squid_signal(SIGTERM, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1053 | |
30a4f2a8 | 1054 | squid_signal(SIGINT, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1055 | |
ae1feb30 | 1056 | #ifdef SIGTTIN |
1057 | ||
1058 | squid_signal(SIGTTIN, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); | |
1059 | ||
1060 | #endif | |
1061 | ||
58a39dc9 | 1062 | memCheckInit(); |
62e76326 | 1063 | |
57afc994 AR |
1064 | #if USE_LOADABLE_MODULES |
1065 | LoadableModulesConfigure(Config.loadable_module_names); | |
1066 | #endif | |
1067 | ||
8f361c50 AR |
1068 | #if USE_ADAPTATION |
1069 | bool enableAdaptation = false; | |
1070 | ||
1071 | // We can remove this dependency on specific adaptation mechanisms | |
1072 | // if we create a generic Registry of such mechanisms. Should we? | |
b958cb0f | 1073 | #if ICAP_CLIENT |
26cc52cb AR |
1074 | Adaptation::Icap::TheConfig.finalize(); |
1075 | enableAdaptation = Adaptation::Icap::TheConfig.onoff || enableAdaptation; | |
6e5db507 AR |
1076 | #endif |
1077 | #if USE_ECAP | |
574b508c AR |
1078 | Adaptation::Ecap::TheConfig.finalize(); // must be after we load modules |
1079 | enableAdaptation = Adaptation::Ecap::TheConfig.onoff || enableAdaptation; | |
b958cb0f | 1080 | #endif |
8f361c50 AR |
1081 | // must be the last adaptation-related finalize |
1082 | Adaptation::Config::Finalize(enableAdaptation); | |
b958cb0f AR |
1083 | #endif |
1084 | ||
79039294 AR |
1085 | #if USE_SQUID_ESI |
1086 | Esi::Init(); | |
1087 | #endif | |
b958cb0f | 1088 | |
bf8fe701 | 1089 | debugs(1, 1, "Ready to serve requests."); |
62e76326 | 1090 | |
dbe4fd8e | 1091 | if (!configured_once) { |
c8f4eac4 | 1092 | eventAdd("storeMaintain", Store::Maintain, NULL, 1.0, 1); |
62e76326 | 1093 | |
1094 | if (Config.onoff.announce) | |
1095 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
1096 | ||
1097 | eventAdd("ipcache_purgelru", ipcache_purgelru, NULL, 10.0, 1); | |
1098 | ||
1099 | eventAdd("fqdncache_purgelru", fqdncache_purgelru, NULL, 15.0, 1); | |
1100 | ||
88bfe092 | 1101 | #if USE_XPROF_STATS |
62e76326 | 1102 | |
1103 | eventAdd("cpuProfiling", xprof_event, NULL, 1.0, 1); | |
1104 | ||
88bfe092 | 1105 | #endif |
62e76326 | 1106 | |
1107 | eventAdd("memPoolCleanIdlePools", Mem::CleanIdlePools, NULL, 15.0, 1); | |
4d7add01 | 1108 | } |
62e76326 | 1109 | |
dbe4fd8e | 1110 | configured_once = 1; |
4d64d74a | 1111 | } |
1112 | ||
c842329d | 1113 | /// unsafe main routine -- may throw |
f3f3e961 | 1114 | int SquidMain(int argc, char **argv); |
c842329d | 1115 | /// unsafe main routine wrapper to catch exceptions |
6e5db507 AR |
1116 | static int SquidMainSafe(int argc, char **argv); |
1117 | ||
6c1962dd | 1118 | #if USE_WIN32_SERVICE |
1119 | /* When USE_WIN32_SERVICE is defined, the main function is placed in win32.cc */ | |
1120 | extern "C" void WINAPI | |
e1381638 | 1121 | SquidWinSvcMain(int argc, char **argv) |
6c1962dd | 1122 | #else |
b8d8561b | 1123 | int |
1124 | main(int argc, char **argv) | |
9b7292ce | 1125 | #endif |
6e5db507 AR |
1126 | { |
1127 | SquidMainSafe(argc, argv); | |
1128 | } | |
1129 | ||
1130 | static int | |
1131 | SquidMainSafe(int argc, char **argv) | |
1132 | { | |
1133 | try { | |
1134 | return SquidMain(argc, argv); | |
26ac0430 | 1135 | } catch (const std::exception &e) { |
bba7c3d0 | 1136 | std::cerr << "dying from an unhandled exception: " << e.what() << std::endl; |
26ac0430 AJ |
1137 | throw; |
1138 | } catch (...) { | |
bba7c3d0 | 1139 | std::cerr << "dying from an unhandled exception." << std::endl; |
26ac0430 AJ |
1140 | throw; |
1141 | } | |
1142 | return -1; // not reached | |
6e5db507 AR |
1143 | } |
1144 | ||
f3f3e961 | 1145 | int |
6e5db507 | 1146 | SquidMain(int argc, char **argv) |
9b7292ce | 1147 | { |
a0aa9e74 | 1148 | #ifdef _SQUID_WIN32_ |
1149 | ||
1150 | int WIN32_init_err; | |
1151 | #endif | |
4d64d74a | 1152 | |
a4ba1105 | 1153 | #if HAVE_SBRK |
62e76326 | 1154 | |
9b7292ce | 1155 | sbrk_start = sbrk(0); |
a4ba1105 | 1156 | #endif |
1157 | ||
fb6a61d1 | 1158 | Debug::parseOptions(NULL); |
9b7292ce | 1159 | debug_log = stderr; |
62e76326 | 1160 | |
b9269882 | 1161 | #if defined(SQUID_MAXFD_LIMIT) |
1162 | ||
1163 | if (SQUID_MAXFD_LIMIT < Squid_MaxFD) | |
1164 | Squid_MaxFD = SQUID_MAXFD_LIMIT; | |
1165 | ||
1166 | #endif | |
399e85ea | 1167 | |
ec4daaa5 | 1168 | #ifdef _SQUID_WIN32_ |
6c1962dd | 1169 | |
a0aa9e74 | 1170 | if ((WIN32_init_err = WIN32_Subsystem_Init(&argc, &argv))) |
1171 | return WIN32_init_err; | |
62e76326 | 1172 | |
0e6d05ef | 1173 | #endif |
1174 | ||
9b7292ce | 1175 | /* call mallopt() before anything else */ |
0b29fe44 | 1176 | #if HAVE_MALLOPT |
7328e889 | 1177 | #ifdef M_GRAIN |
9b7292ce | 1178 | /* Round up all sizes to a multiple of this */ |
1179 | mallopt(M_GRAIN, 16); | |
62e76326 | 1180 | |
7328e889 | 1181 | #endif |
1182 | #ifdef M_MXFAST | |
9b7292ce | 1183 | /* biggest size that is considered a small block */ |
1184 | mallopt(M_MXFAST, 256); | |
62e76326 | 1185 | |
7328e889 | 1186 | #endif |
1187 | #ifdef M_NBLKS | |
9b7292ce | 1188 | /* allocate this many small blocks at once */ |
1189 | mallopt(M_NLBLKS, 32); | |
62e76326 | 1190 | |
7328e889 | 1191 | #endif |
1192 | #endif /* HAVE_MALLOPT */ | |
1193 | ||
9b7292ce | 1194 | squid_srandom(time(NULL)); |
4d64d74a | 1195 | |
9b7292ce | 1196 | getCurrentTime(); |
62e76326 | 1197 | |
9b7292ce | 1198 | squid_start = current_time; |
62e76326 | 1199 | |
9b7292ce | 1200 | failure_notify = fatal_dump; |
4d64d74a | 1201 | |
6c1962dd | 1202 | #if USE_WIN32_SERVICE |
1203 | ||
9b7292ce | 1204 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1205 | |
1206 | #endif | |
1207 | ||
9b7292ce | 1208 | mainParseOptions(argc, argv); |
4d64d74a | 1209 | |
9aae6be3 | 1210 | if (opt_parse_cfg_only) { |
26ac0430 | 1211 | Debug::parseOptions("ALL,1"); |
9aae6be3 | 1212 | } |
1213 | ||
6c1962dd | 1214 | #if USE_WIN32_SERVICE |
1215 | ||
26ac0430 | 1216 | if (opt_install_service) { |
9b7292ce | 1217 | WIN32_InstallService(); |
a0aa9e74 | 1218 | return 0; |
9b7292ce | 1219 | } |
6c1962dd | 1220 | |
26ac0430 | 1221 | if (opt_remove_service) { |
9b7292ce | 1222 | WIN32_RemoveService(); |
a0aa9e74 | 1223 | return 0; |
9b7292ce | 1224 | } |
6c1962dd | 1225 | |
26ac0430 | 1226 | if (opt_command_line) { |
9b7292ce | 1227 | WIN32_SetServiceCommandLine(); |
a0aa9e74 | 1228 | return 0; |
9b7292ce | 1229 | } |
6c1962dd | 1230 | |
1231 | #endif | |
1232 | ||
9b7292ce | 1233 | /* parse configuration file |
1234 | * note: in "normal" case this used to be called from mainInitialize() */ | |
1235 | { | |
1236 | int parse_err; | |
62e76326 | 1237 | |
9b7292ce | 1238 | if (!ConfigFile) |
1239 | ConfigFile = xstrdup(DefaultConfigFile); | |
62e76326 | 1240 | |
9b7292ce | 1241 | assert(!configured_once); |
62e76326 | 1242 | |
9b7292ce | 1243 | Mem::Init(); |
62e76326 | 1244 | |
9b7292ce | 1245 | storeFsInit(); /* required for config parsing */ |
62e76326 | 1246 | |
7b5b7ba8 | 1247 | /* TODO: call the FS::Clean() in shutdown to do Fs cleanups */ |
af6a12ee | 1248 | Fs::Init(); |
7b5b7ba8 | 1249 | |
b9ae18aa | 1250 | /* May not be needed for parsing, have not audited for such */ |
1251 | DiskIOModule::SetupAllModules(); | |
1252 | ||
59b2d47f | 1253 | /* Shouldn't be needed for config parsing, but have not audited for such */ |
1254 | StoreFileSystem::SetupAllFs(); | |
1255 | ||
c8f4eac4 | 1256 | /* we may want the parsing process to set this up in the future */ |
1257 | Store::Root(new StoreController); | |
1258 | ||
dd9b1081 | 1259 | parse_err = parseConfigFile(ConfigFile); |
62e76326 | 1260 | |
97244680 | 1261 | Mem::Report(); |
26ac0430 | 1262 | |
9b7292ce | 1263 | if (opt_parse_cfg_only) |
6c1962dd | 1264 | |
9b7292ce | 1265 | return parse_err; |
9b7292ce | 1266 | } |
c642c141 | 1267 | setUmask(Config.umask); |
9b7292ce | 1268 | if (-1 == opt_send_signal) |
1269 | if (checkRunningPid()) | |
205d7c3b | 1270 | exit(0); |
e13ee7ad | 1271 | |
9bc73deb | 1272 | #if TEST_ACCESS |
62e76326 | 1273 | |
95564b0d | 1274 | comm_init(); |
62e76326 | 1275 | |
9b7292ce | 1276 | comm_select_init(); |
62e76326 | 1277 | |
9b7292ce | 1278 | mainInitialize(); |
62e76326 | 1279 | |
9b7292ce | 1280 | test_access(); |
62e76326 | 1281 | |
9b7292ce | 1282 | return 0; |
62e76326 | 1283 | |
9bc73deb | 1284 | #endif |
1285 | ||
9b7292ce | 1286 | /* send signal to running copy and exit */ |
26ac0430 | 1287 | if (opt_send_signal != -1) { |
9b7292ce | 1288 | /* chroot if configured to run inside chroot */ |
62e76326 | 1289 | |
a572d8be | 1290 | if (Config.chroot_dir) { |
1291 | if (chroot(Config.chroot_dir)) | |
1292 | fatal("failed to chroot"); | |
1293 | ||
1294 | no_suid(); | |
1295 | } else { | |
1296 | leave_suid(); | |
9b7292ce | 1297 | } |
62e76326 | 1298 | |
9b7292ce | 1299 | sendSignal(); |
1300 | /* NOTREACHED */ | |
1301 | } | |
62e76326 | 1302 | |
26ac0430 | 1303 | if (opt_create_swap_dirs) { |
9b7292ce | 1304 | /* chroot if configured to run inside chroot */ |
0e657244 | 1305 | |
9b7292ce | 1306 | if (Config.chroot_dir && chroot(Config.chroot_dir)) { |
1307 | fatal("failed to chroot"); | |
1308 | } | |
62e76326 | 1309 | |
9b7292ce | 1310 | setEffectiveUser(); |
bf8fe701 | 1311 | debugs(0, 0, "Creating Swap Directories"); |
c8f4eac4 | 1312 | Store::Root().create(); |
6c1962dd | 1313 | |
9b7292ce | 1314 | return 0; |
9b7292ce | 1315 | } |
62e76326 | 1316 | |
9b7292ce | 1317 | if (!opt_no_daemon) |
1318 | watch_child(argv); | |
62e76326 | 1319 | |
95564b0d | 1320 | setMaxFD(); |
1321 | ||
1322 | /* init comm module */ | |
1323 | comm_init(); | |
62e76326 | 1324 | |
9b7292ce | 1325 | comm_select_init(); |
4d64d74a | 1326 | |
26ac0430 | 1327 | if (opt_no_daemon) { |
9b7292ce | 1328 | /* we have to init fdstat here. */ |
1329 | fd_open(0, FD_LOG, "stdin"); | |
1330 | fd_open(1, FD_LOG, "stdout"); | |
1331 | fd_open(2, FD_LOG, "stderr"); | |
1332 | } | |
62e76326 | 1333 | |
6c1962dd | 1334 | #if USE_WIN32_SERVICE |
1335 | ||
9b7292ce | 1336 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1337 | |
1338 | #endif | |
1339 | ||
9b7292ce | 1340 | mainInitialize(); |
4d64d74a | 1341 | |
6c1962dd | 1342 | #if USE_WIN32_SERVICE |
1343 | ||
9b7292ce | 1344 | WIN32_svcstatusupdate(SERVICE_RUNNING, 0); |
6c1962dd | 1345 | |
1346 | #endif | |
1347 | ||
9b7292ce | 1348 | /* main loop */ |
a553a5a3 | 1349 | EventLoop mainLoop; |
62e76326 | 1350 | |
9688b0ae | 1351 | SignalEngine signalEngine(mainLoop); |
6c1962dd | 1352 | |
9688b0ae | 1353 | mainLoop.registerEngine(&signalEngine); |
62e76326 | 1354 | |
8ff3fa2e | 1355 | /* TODO: stop requiring the singleton here */ |
1356 | mainLoop.registerEngine(EventScheduler::GetInstance()); | |
62e76326 | 1357 | |
8ff3fa2e | 1358 | StoreRootEngine store_engine; |
615f9581 | 1359 | |
8ff3fa2e | 1360 | mainLoop.registerEngine(&store_engine); |
a774fd3f | 1361 | |
8ff3fa2e | 1362 | CommSelectEngine comm_engine; |
1363 | ||
8ff3fa2e | 1364 | mainLoop.registerEngine(&comm_engine); |
1365 | ||
bef81ea5 | 1366 | mainLoop.setPrimaryEngine(&comm_engine); |
1367 | ||
8ff3fa2e | 1368 | /* use the standard time service */ |
1369 | TimeEngine time_engine; | |
1370 | ||
1371 | mainLoop.setTimeService(&time_engine); | |
1372 | ||
48d54e4d AJ |
1373 | /* at this point we are finished the synchronous startup. */ |
1374 | starting_up = 0; | |
1375 | ||
8ff3fa2e | 1376 | mainLoop.run(); |
1377 | ||
1378 | if (mainLoop.errcount == 10) | |
1379 | fatal_dump("Event loop exited with failure."); | |
1380 | ||
1381 | /* shutdown squid now */ | |
1382 | SquidShutdown(); | |
62e76326 | 1383 | |
9b7292ce | 1384 | /* NOTREACHED */ |
9b7292ce | 1385 | return 0; |
090089c4 | 1386 | } |
7690e8eb | 1387 | |
b8d8561b | 1388 | static void |
0673c0ba | 1389 | sendSignal(void) |
7690e8eb | 1390 | { |
ff8d0ea6 | 1391 | pid_t pid; |
fedac7e5 | 1392 | debug_log = stderr; |
258ac4d7 | 1393 | |
1394 | if (strcmp(Config.pidFilename, "none") == 0) { | |
bf8fe701 | 1395 | debugs(0, 1, "No pid_filename specified. Trusting you know what you are doing."); |
258ac4d7 | 1396 | } |
1397 | ||
fedac7e5 | 1398 | pid = readPidFile(); |
62e76326 | 1399 | |
fedac7e5 | 1400 | if (pid > 1) { |
6c1962dd | 1401 | #if USE_WIN32_SERVICE |
1402 | ||
1403 | if (opt_signal_service) { | |
1404 | WIN32_sendSignal(opt_send_signal); | |
1405 | exit(0); | |
1406 | } else | |
1407 | #ifdef _SQUID_MSWIN_ | |
1408 | { | |
7dbca7a4 | 1409 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
6c1962dd | 1410 | fprintf(stderr, "signal to Squid Service:\n"); |
1411 | fprintf(stderr, "missing -n command line switch.\n"); | |
1412 | exit(1); | |
1413 | } | |
1414 | ||
1415 | /* NOTREACHED */ | |
1416 | #endif | |
1417 | ||
1418 | #endif | |
1419 | ||
62e76326 | 1420 | if (kill(pid, opt_send_signal) && |
1421 | /* ignore permissions if just running check */ | |
1422 | !(opt_send_signal == 0 && errno == EPERM)) { | |
7dbca7a4 | 1423 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
62e76326 | 1424 | fprintf(stderr, "signal %d to process %d: %s\n", |
1425 | opt_send_signal, (int) pid, xstrerror()); | |
1426 | exit(1); | |
1427 | } | |
fedac7e5 | 1428 | } else { |
205d7c3b | 1429 | if (opt_send_signal != SIGTERM) { |
e08d498f | 1430 | fprintf(stderr, "%s: ERROR: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1431 | exit(1); |
1432 | } else { | |
e08d498f | 1433 | fprintf(stderr, "%s: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1434 | exit(0); |
1435 | } | |
7690e8eb | 1436 | } |
62e76326 | 1437 | |
fedac7e5 | 1438 | /* signal successfully sent */ |
1439 | exit(0); | |
1440 | } | |
f95b8144 | 1441 | |
a50bfe93 | 1442 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 1443 | /* |
1444 | * This function is run when Squid is in daemon mode, just | |
1445 | * before the parent forks and starts up the child process. | |
1446 | * It can be used for admin-specific tasks, such as notifying | |
1447 | * someone that Squid is (re)started. | |
1448 | */ | |
1449 | static void | |
1450 | mainStartScript(const char *prog) | |
1451 | { | |
1452 | char script[SQUID_MAXPATHLEN]; | |
1453 | char *t; | |
1454 | size_t sl = 0; | |
1455 | pid_t cpid; | |
1456 | pid_t rpid; | |
1457 | xstrncpy(script, prog, MAXPATHLEN); | |
62e76326 | 1458 | |
e18d7fdc | 1459 | if ((t = strrchr(script, '/'))) { |
62e76326 | 1460 | *(++t) = '\0'; |
1461 | sl = strlen(script); | |
e18d7fdc | 1462 | } |
62e76326 | 1463 | |
e18d7fdc | 1464 | xstrncpy(&script[sl], squid_start_script, MAXPATHLEN - sl); |
62e76326 | 1465 | |
e18d7fdc | 1466 | if ((cpid = fork()) == 0) { |
62e76326 | 1467 | /* child */ |
f75662c9 | 1468 | execl(script, squid_start_script, (char *)NULL); |
482aa790 | 1469 | _exit(-1); |
e18d7fdc | 1470 | } else { |
62e76326 | 1471 | do { |
e18d7fdc | 1472 | #ifdef _SQUID_NEXT_ |
62e76326 | 1473 | union wait status; |
1474 | rpid = wait3(&status, 0, NULL); | |
e18d7fdc | 1475 | #else |
62e76326 | 1476 | |
1477 | int status; | |
1478 | rpid = waitpid(-1, &status, 0); | |
e18d7fdc | 1479 | #endif |
62e76326 | 1480 | |
1481 | } while (rpid != cpid); | |
e18d7fdc | 1482 | } |
1483 | } | |
1484 | ||
a50bfe93 | 1485 | #endif /* _SQUID_MSWIN_ */ |
1486 | ||
efd900cb | 1487 | static int |
1488 | checkRunningPid(void) | |
1489 | { | |
1490 | pid_t pid; | |
e0077312 | 1491 | |
1492 | if (!debug_log) | |
1493 | debug_log = stderr; | |
1494 | ||
efd900cb | 1495 | pid = readPidFile(); |
62e76326 | 1496 | |
efd900cb | 1497 | if (pid < 2) |
62e76326 | 1498 | return 0; |
1499 | ||
efd900cb | 1500 | if (kill(pid, 0) < 0) |
62e76326 | 1501 | return 0; |
1502 | ||
cb7a4fcb | 1503 | debugs(0, 0, "Squid is already running! Process ID " << pid); |
62e76326 | 1504 | |
efd900cb | 1505 | return 1; |
1506 | } | |
1507 | ||
f95b8144 | 1508 | static void |
bbe199dc | 1509 | watch_child(char *argv[]) |
f95b8144 | 1510 | { |
a50bfe93 | 1511 | #ifndef _SQUID_MSWIN_ |
f95b8144 | 1512 | char *prog; |
f95b8144 | 1513 | int failcount = 0; |
1514 | time_t start; | |
1515 | time_t stop; | |
1516 | #ifdef _SQUID_NEXT_ | |
62e76326 | 1517 | |
f95b8144 | 1518 | union wait status; |
1519 | #else | |
62e76326 | 1520 | |
f95b8144 | 1521 | int status; |
1522 | #endif | |
62e76326 | 1523 | |
e3a3b845 | 1524 | pid_t pid; |
c99c5397 | 1525 | #ifdef TIOCNOTTY |
1526 | ||
54f742e7 | 1527 | int i; |
c99c5397 | 1528 | #endif |
1529 | ||
742724a4 | 1530 | int nullfd; |
62e76326 | 1531 | |
f95b8144 | 1532 | if (*(argv[0]) == '(') |
62e76326 | 1533 | return; |
1534 | ||
7dbca7a4 | 1535 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1536 | |
54f742e7 | 1537 | if ((pid = fork()) < 0) |
62e76326 | 1538 | syslog(LOG_ALERT, "fork failed: %s", xstrerror()); |
54f742e7 | 1539 | else if (pid > 0) |
62e76326 | 1540 | exit(0); |
1541 | ||
54f742e7 | 1542 | if (setsid() < 0) |
62e76326 | 1543 | syslog(LOG_ALERT, "setsid failed: %s", xstrerror()); |
1544 | ||
efd900cb | 1545 | closelog(); |
62e76326 | 1546 | |
54f742e7 | 1547 | #ifdef TIOCNOTTY |
62e76326 | 1548 | |
c4aefe96 | 1549 | if ((i = open("/dev/tty", O_RDWR | O_TEXT)) >= 0) { |
62e76326 | 1550 | ioctl(i, TIOCNOTTY, NULL); |
1551 | close(i); | |
54f742e7 | 1552 | } |
62e76326 | 1553 | |
54f742e7 | 1554 | #endif |
b05490a8 | 1555 | |
7f6ffd15 | 1556 | /* |
1557 | * RBCOLLINS - if cygwin stackdumps when squid is run without | |
1558 | * -N, check the cygwin1.dll version, it needs to be AT LEAST | |
1559 | * 1.1.3. execvp had a bit overflow error in a loop.. | |
1560 | */ | |
742724a4 | 1561 | /* Connect stdio to /dev/null in daemon mode */ |
4da086c4 | 1562 | nullfd = open(_PATH_DEVNULL, O_RDWR | O_TEXT); |
62e76326 | 1563 | |
e4a1325e | 1564 | if (nullfd < 0) |
4da086c4 | 1565 | fatalf(_PATH_DEVNULL " %s\n", xstrerror()); |
e4a1325e | 1566 | |
742724a4 | 1567 | dup2(nullfd, 0); |
62e76326 | 1568 | |
62493678 | 1569 | if (Debug::log_stderr < 0) { |
62e76326 | 1570 | dup2(nullfd, 1); |
1571 | dup2(nullfd, 2); | |
742724a4 | 1572 | } |
62e76326 | 1573 | |
f95b8144 | 1574 | for (;;) { |
62e76326 | 1575 | mainStartScript(argv[0]); |
1576 | ||
1577 | if ((pid = fork()) == 0) { | |
1578 | /* child */ | |
7dbca7a4 | 1579 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1580 | prog = xstrdup(argv[0]); |
1581 | argv[0] = xstrdup("(squid)"); | |
1582 | execvp(prog, argv); | |
1583 | syslog(LOG_ALERT, "execvp failed: %s", xstrerror()); | |
1584 | } | |
1585 | ||
1586 | /* parent */ | |
7dbca7a4 | 1587 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1588 | |
1589 | syslog(LOG_NOTICE, "Squid Parent: child process %d started", pid); | |
1590 | ||
1591 | time(&start); | |
1592 | ||
1593 | squid_signal(SIGINT, SIG_IGN, SA_RESTART); | |
1594 | ||
f95b8144 | 1595 | #ifdef _SQUID_NEXT_ |
62e76326 | 1596 | |
1597 | pid = wait3(&status, 0, NULL); | |
1598 | ||
f95b8144 | 1599 | #else |
62e76326 | 1600 | |
1601 | pid = waitpid(-1, &status, 0); | |
1602 | ||
1603 | #endif | |
1604 | ||
1605 | time(&stop); | |
1606 | ||
1607 | if (WIFEXITED(status)) { | |
1608 | syslog(LOG_NOTICE, | |
1609 | "Squid Parent: child process %d exited with status %d", | |
1610 | pid, WEXITSTATUS(status)); | |
1611 | } else if (WIFSIGNALED(status)) { | |
1612 | syslog(LOG_NOTICE, | |
cc192b50 | 1613 | "Squid Parent: child process %d exited due to signal %d with status %d", |
1614 | pid, WTERMSIG(status), WEXITSTATUS(status)); | |
62e76326 | 1615 | } else { |
1616 | syslog(LOG_NOTICE, "Squid Parent: child process %d exited", pid); | |
1617 | } | |
1618 | ||
1619 | if (stop - start < 10) | |
1620 | failcount++; | |
1621 | else | |
1622 | failcount = 0; | |
1623 | ||
1624 | if (failcount == 5) { | |
1625 | syslog(LOG_ALERT, "Exiting due to repeated, frequent failures"); | |
1626 | exit(1); | |
1627 | } | |
1628 | ||
1629 | if (WIFEXITED(status)) | |
1630 | if (WEXITSTATUS(status) == 0) | |
1631 | exit(0); | |
1632 | ||
1633 | if (WIFSIGNALED(status)) { | |
1634 | switch (WTERMSIG(status)) { | |
1635 | ||
1636 | case SIGKILL: | |
1637 | exit(0); | |
1638 | break; | |
1639 | ||
06a0fbd3 | 1640 | case SIGINT: |
1641 | case SIGTERM: | |
26ac0430 | 1642 | syslog(LOG_ALERT, "Exiting due to unexpected forced shutdown"); |
06a0fbd3 | 1643 | exit(1); |
1644 | break; | |
1645 | ||
62e76326 | 1646 | default: |
1647 | break; | |
1648 | } | |
1649 | } | |
1650 | ||
1651 | squid_signal(SIGINT, SIG_DFL, SA_RESTART); | |
1652 | sleep(3); | |
f95b8144 | 1653 | } |
62e76326 | 1654 | |
bbe199dc | 1655 | /* NOTREACHED */ |
a50bfe93 | 1656 | #endif /* _SQUID_MSWIN_ */ |
a572d8be | 1657 | |
f95b8144 | 1658 | } |
fff6ad65 | 1659 | |
9ec1a1dc | 1660 | static void |
8ff3fa2e | 1661 | SquidShutdown() |
fff6ad65 | 1662 | { |
d71e4674 AR |
1663 | /* XXX: This function is called after the main loop has quit, which |
1664 | * means that no AsyncCalls would be called, including close handlers. | |
1665 | * TODO: We need to close/shut/free everything that needs calls before | |
1666 | * exiting the loop. | |
26ac0430 | 1667 | */ |
d71e4674 | 1668 | |
6c1962dd | 1669 | #if USE_WIN32_SERVICE |
1670 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1671 | #endif | |
1672 | ||
bf8fe701 | 1673 | debugs(1, 1, "Shutting down..."); |
95a83c22 | 1674 | #if USE_DNSSERVERS |
1675 | ||
1676 | dnsShutdown(); | |
1677 | #else | |
1678 | ||
1679 | idnsShutdown(); | |
1680 | #endif | |
1681 | ||
1682 | redirectShutdown(); | |
1683 | externalAclShutdown(); | |
d723bf6b | 1684 | icpConnectionClose(); |
1685 | #if USE_HTCP | |
62e76326 | 1686 | |
d723bf6b | 1687 | htcpSocketClose(); |
1688 | #endif | |
1689 | #ifdef SQUID_SNMP | |
62e76326 | 1690 | |
d723bf6b | 1691 | snmpConnectionClose(); |
320e9f36 | 1692 | #endif |
eb824054 | 1693 | #if USE_WCCP |
62e76326 | 1694 | |
320e9f36 | 1695 | wccpConnectionClose(); |
d723bf6b | 1696 | #endif |
0b0cfcf2 | 1697 | #if USE_WCCPv2 |
1698 | ||
1699 | wccp2ConnectionClose(); | |
1700 | #endif | |
62e76326 | 1701 | |
fff6ad65 | 1702 | releaseServerSockets(); |
d723bf6b | 1703 | commCloseAllSockets(); |
79039294 AR |
1704 | |
1705 | #if USE_SQUID_ESI | |
1706 | Esi::Clean(); | |
1707 | #endif | |
1708 | ||
515ec4dc | 1709 | #if DELAY_POOLS |
62e76326 | 1710 | |
b67e2c8c | 1711 | DelayPools::FreePools(); |
515ec4dc | 1712 | #endif |
62e76326 | 1713 | |
5dae8514 | 1714 | authenticateShutdown(); |
6c1962dd | 1715 | #if USE_WIN32_SERVICE |
1716 | ||
1717 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1718 | #endif | |
62e76326 | 1719 | |
c8f4eac4 | 1720 | Store::Root().sync(); /* Flush pending object writes/unlinks */ |
4d075ba0 | 1721 | #if USE_UNLINKD |
1722 | ||
1723 | unlinkdClose(); /* after sync/flush */ | |
1724 | #endif | |
fc68f6b1 | 1725 | |
fff6ad65 | 1726 | storeDirWriteCleanLogs(0); |
1727 | PrintRusage(); | |
1728 | dumpMallocStats(); | |
c8f4eac4 | 1729 | Store::Root().sync(); /* Flush log writes */ |
fff6ad65 | 1730 | storeLogClose(); |
1731 | accessLogClose(); | |
5b824235 | 1732 | useragentLogClose(); |
c9b99797 | 1733 | refererCloseLog(); |
225644d7 | 1734 | #if WIP_FWD_LOG |
62e76326 | 1735 | |
225644d7 | 1736 | fwdUninit(); |
1737 | #endif | |
62e76326 | 1738 | |
c8f4eac4 | 1739 | Store::Root().sync(); /* Flush log close */ |
59b2d47f | 1740 | StoreFileSystem::FreeAllFs(); |
b9ae18aa | 1741 | DiskIOModule::FreeAllModules(); |
afec404b | 1742 | #if LEAK_CHECK_MODE && 0 /* doesn't work at the moment */ |
62e76326 | 1743 | |
fff6ad65 | 1744 | configFreeMemory(); |
1745 | storeFreeMemory(); | |
33ab18e8 | 1746 | /*stmemFreeMemory(); */ |
fff6ad65 | 1747 | netdbFreeMemory(); |
1748 | ipcacheFreeMemory(); | |
1749 | fqdncacheFreeMemory(); | |
1750 | asnFreeMemory(); | |
26a369ba | 1751 | clientdbFreeMemory(); |
7021844c | 1752 | httpHeaderCleanModule(); |
d2db411c | 1753 | statFreeMemory(); |
f1fc2a8d | 1754 | eventFreeMemory(); |
c68e9c6b | 1755 | mimeFreeMemory(); |
1756 | errorClean(); | |
fff6ad65 | 1757 | #endif |
26a369ba | 1758 | #if !XMALLOC_TRACE |
62e76326 | 1759 | |
54f742e7 | 1760 | if (opt_no_daemon) { |
62e76326 | 1761 | file_close(0); |
1762 | file_close(1); | |
1763 | file_close(2); | |
54f742e7 | 1764 | } |
62e76326 | 1765 | |
33ab18e8 | 1766 | #endif |
fff6ad65 | 1767 | fdDumpOpen(); |
62e76326 | 1768 | |
236d1779 | 1769 | comm_exit(); |
62e76326 | 1770 | |
ddb43c58 | 1771 | memClean(); |
62e76326 | 1772 | |
33ab18e8 | 1773 | #if XMALLOC_TRACE |
62e76326 | 1774 | |
26a369ba | 1775 | xmalloc_find_leaks(); |
62e76326 | 1776 | |
bf8fe701 | 1777 | debugs(1, 0, "Memory used after shutdown: " << xmalloc_total); |
62e76326 | 1778 | |
33ab18e8 | 1779 | #endif |
36a97e19 | 1780 | #if MEM_GEN_TRACE |
62e76326 | 1781 | |
399e85ea | 1782 | log_trace_done(); |
62e76326 | 1783 | |
36a97e19 | 1784 | #endif |
62e76326 | 1785 | |
ab50ee9e | 1786 | if (Config.pidFilename && strcmp(Config.pidFilename, "none") != 0) { |
62e76326 | 1787 | enter_suid(); |
1788 | safeunlink(Config.pidFilename, 0); | |
1789 | leave_suid(); | |
ab50ee9e | 1790 | } |
62e76326 | 1791 | |
bf8fe701 | 1792 | debugs(1, 1, "Squid Cache (Version " << version_string << "): Exiting normally."); |
62e76326 | 1793 | |
0cfa98cb | 1794 | /* |
1795 | * DPW 2006-10-23 | |
1796 | * We used to fclose(debug_log) here if it was set, but then | |
1797 | * we forgot to set it to NULL. That caused some coredumps | |
1798 | * because exit() ends up calling a bunch of destructors and | |
1799 | * such. So rather than forcing the debug_log to close, we'll | |
1800 | * leave it open so that those destructors can write some | |
1801 | * debugging if necessary. The file will be closed anyway when | |
1802 | * the process truly exits. | |
1803 | */ | |
62e76326 | 1804 | |
ae1feb30 | 1805 | exit(shutdown_status); |
fff6ad65 | 1806 | } |
bef81ea5 | 1807 |