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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" |
3d93a84d | 41 | #include "base/TextException.h" |
62ee09ca | 42 | #include "ConfigParser.h" |
aa839030 | 43 | #include "errorpage.h" |
a553a5a3 | 44 | #include "event.h" |
45 | #include "EventLoop.h" | |
62ee09ca | 46 | #include "ExternalACL.h" |
e6ccf245 | 47 | #include "Store.h" |
48 | #include "ICP.h" | |
4daaf3cb | 49 | #include "ident/Ident.h" |
528b2c61 | 50 | #include "HttpReply.h" |
62ee09ca | 51 | #include "pconn.h" |
528b2c61 | 52 | #include "Mem.h" |
3ad63615 AR |
53 | #include "acl/Asn.h" |
54 | #include "acl/Acl.h" | |
75faaa7a | 55 | #include "htcp.h" |
59b2d47f | 56 | #include "StoreFileSystem.h" |
b9ae18aa | 57 | #include "DiskIO/DiskIOModule.h" |
f900210a | 58 | #include "comm.h" |
62ee09ca | 59 | #if USE_EPOLL |
60 | #include "comm_epoll.h" | |
61 | #endif | |
62 | #if USE_KQUEUE | |
63 | #include "comm_kqueue.h" | |
64 | #endif | |
65 | #if USE_POLL | |
66 | #include "comm_poll.h" | |
67 | #endif | |
7cdb47bc | 68 | #if defined(USE_SELECT) || defined(USE_SELECT_WIN32) |
663c0a38 | 69 | #include "comm_select.h" |
70 | #endif | |
985c86bc | 71 | #include "SquidTime.h" |
c8f4eac4 | 72 | #include "SwapDir.h" |
b6b6f466 | 73 | #include "forward.h" |
d9e7ee1f | 74 | #include "MemPool.h" |
9b5c4a9a AJ |
75 | #include "icmp/IcmpSquid.h" |
76 | #include "icmp/net_db.h" | |
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 | ||
18631119 AJ |
723 | // parse the config returns a count of errors encountered. |
724 | if ( parseConfigFile(ConfigFile) != 0) { | |
725 | // for now any errors are a fatal condition... | |
726 | self_destruct(); | |
727 | } | |
936b23cd | 728 | |
c642c141 | 729 | setUmask(Config.umask); |
97244680 | 730 | Mem::Report(); |
3aa4adbc | 731 | setEffectiveUser(); |
62493678 | 732 | _db_init(Debug::cache_log, Debug::debugOptions); |
429fdbec | 733 | ipcache_restart(); /* clear stuck entries */ |
94439e4e | 734 | authenticateUserCacheRestart(); /* clear stuck ACL entries */ |
429fdbec | 735 | fqdncache_restart(); /* sigh, fqdncache too */ |
0e70aa1e | 736 | parseEtcHosts(); |
53ad48e6 | 737 | errorInitialize(); /* reload error pages */ |
2e923080 | 738 | accessLogInit(); |
3ff65596 AR |
739 | #if ICAP_CLIENT |
740 | icapLogOpen(); | |
741 | #endif | |
2e923080 | 742 | storeLogOpen(); |
743 | useragentOpenLog(); | |
744 | refererOpenLog(); | |
3c573763 | 745 | #if USE_DNSSERVERS |
62e76326 | 746 | |
74addf6c | 747 | dnsInit(); |
3c573763 | 748 | #else |
62e76326 | 749 | |
7b724b86 | 750 | idnsInit(); |
eb824054 | 751 | #endif |
62e76326 | 752 | |
74addf6c | 753 | redirectInit(); |
e6ccf245 | 754 | authenticateInit(&Config.authConfiguration); |
d9572179 | 755 | externalAclInit(); |
1f38f50a | 756 | #if USE_WCCP |
62e76326 | 757 | |
1f38f50a | 758 | wccpInit(); |
759 | #endif | |
0b0cfcf2 | 760 | #if USE_WCCPv2 |
761 | ||
762 | wccp2Init(); | |
763 | #endif | |
62e76326 | 764 | |
0ffd22bc | 765 | serverConnectionsOpen(); |
9c2e9b50 | 766 | |
3ee2b4f8 | 767 | neighbors_init(); |
9c2e9b50 | 768 | |
2db68ce5 | 769 | storeDirOpenSwapLogs(); |
9c2e9b50 | 770 | |
9c021a38 | 771 | mimeInit(Config.mimeTablePathname); |
9c2e9b50 | 772 | |
926375e6 | 773 | if (Config.onoff.announce) { |
774 | if (!eventFind(start_announce, NULL)) | |
775 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
776 | } else { | |
777 | if (eventFind(start_announce, NULL)) | |
778 | eventDelete(start_announce, NULL); | |
779 | } | |
780 | ||
b8890359 | 781 | writePidFile(); /* write PID file */ |
9c2e9b50 | 782 | |
bf8fe701 | 783 | debugs(1, 1, "Ready to serve requests."); |
9c2e9b50 | 784 | |
5cd39a10 | 785 | reconfiguring = 0; |
786 | } | |
787 | ||
788 | static void | |
9b7292ce | 789 | mainRotate(void) |
790 | { | |
cc192b50 | 791 | icmpEngine.Close(); |
3c573763 | 792 | #if USE_DNSSERVERS |
e40aa8da | 793 | dnsShutdown(); |
3c573763 | 794 | #endif |
e40aa8da | 795 | redirectShutdown(); |
796 | authenticateShutdown(); | |
d9572179 | 797 | externalAclShutdown(); |
0a6dd8fb | 798 | |
5cd39a10 | 799 | _db_rotate_log(); /* cache.log */ |
800 | storeDirWriteCleanLogs(1); | |
801 | storeLogRotate(); /* store.log */ | |
802 | accessLogRotate(); /* access.log */ | |
803 | useragentRotateLog(); /* useragent.log */ | |
fd2c5549 | 804 | refererRotateLog(); /* referer.log */ |
3ff65596 AR |
805 | #if ICAP_CLIENT |
806 | icapLogRotate(); /*icap.log*/ | |
807 | #endif | |
225644d7 | 808 | #if WIP_FWD_LOG |
809 | fwdLogRotate(); | |
810 | #endif | |
62e76326 | 811 | |
cc192b50 | 812 | icmpEngine.Open(); |
3c573763 | 813 | #if USE_DNSSERVERS |
e40aa8da | 814 | dnsInit(); |
3c573763 | 815 | #endif |
e40aa8da | 816 | redirectInit(); |
e6ccf245 | 817 | authenticateInit(&Config.authConfiguration); |
d9572179 | 818 | externalAclInit(); |
5f3f8d0e | 819 | } |
820 | ||
067bea91 | 821 | static void |
9b7292ce | 822 | setEffectiveUser(void) |
823 | { | |
fc68f6b1 | 824 | keepCapabilities(); |
85407535 | 825 | leave_suid(); /* Run as non privilegied user */ |
cd377065 | 826 | #ifdef _SQUID_OS2_ |
62e76326 | 827 | |
cd377065 | 828 | return; |
829 | #endif | |
62e76326 | 830 | |
85407535 | 831 | if (geteuid() == 0) { |
bf8fe701 | 832 | debugs(0, 0, "Squid is not safe to run as root! If you must"); |
833 | debugs(0, 0, "start Squid as root, then you must configure"); | |
834 | debugs(0, 0, "it to run as a non-priveledged user with the"); | |
835 | debugs(0, 0, "'cache_effective_user' option in the config file."); | |
62e76326 | 836 | fatal("Don't run Squid as root, set 'cache_effective_user'!"); |
85407535 | 837 | } |
838 | } | |
839 | ||
b6a2f15e | 840 | static void |
9b7292ce | 841 | mainSetCwd(void) |
842 | { | |
4a504376 | 843 | char pathbuf[MAXPATHLEN]; |
62e76326 | 844 | |
b6a2f15e | 845 | if (Config.coredump_dir) { |
62e76326 | 846 | if (0 == strcmp("none", Config.coredump_dir)) { |
847 | (void) 0; | |
848 | } else if (chdir(Config.coredump_dir) == 0) { | |
bf8fe701 | 849 | debugs(0, 1, "Set Current Directory to " << Config.coredump_dir); |
62e76326 | 850 | return; |
851 | } else { | |
bf8fe701 | 852 | debugs(50, 0, "chdir: " << Config.coredump_dir << ": " << xstrerror()); |
62e76326 | 853 | } |
b6a2f15e | 854 | } |
62e76326 | 855 | |
02e8115e | 856 | /* If we don't have coredump_dir or couldn't cd there, report current dir */ |
4a504376 | 857 | if (getcwd(pathbuf, MAXPATHLEN)) { |
bf8fe701 | 858 | debugs(0, 1, "Current Directory is " << pathbuf); |
4a504376 | 859 | } else { |
bf8fe701 | 860 | debugs(50, 0, "WARNING: Can't find current directory, getcwd: " << xstrerror()); |
4a504376 | 861 | } |
b6a2f15e | 862 | } |
863 | ||
b67e2c8c | 864 | #if DELAY_POOLS |
865 | #include "DelayPools.h" | |
866 | #endif | |
867 | ||
b8d8561b | 868 | static void |
9b7292ce | 869 | mainInitialize(void) |
870 | { | |
efd900cb | 871 | /* chroot if configured to run inside chroot */ |
62e76326 | 872 | |
64b0a10d | 873 | if (Config.chroot_dir && (chroot(Config.chroot_dir) != 0 || chdir("/") != 0)) { |
62e76326 | 874 | fatal("failed to chroot"); |
efd900cb | 875 | } |
62e76326 | 876 | |
1758c627 | 877 | if (opt_catch_signals) { |
62e76326 | 878 | squid_signal(SIGSEGV, death, SA_NODEFER | SA_RESETHAND); |
879 | squid_signal(SIGBUS, death, SA_NODEFER | SA_RESETHAND); | |
44f99671 | 880 | } |
62e76326 | 881 | |
30a4f2a8 | 882 | squid_signal(SIGPIPE, SIG_IGN, SA_RESTART); |
883 | squid_signal(SIGCHLD, sig_child, SA_NODEFER | SA_RESTART); | |
44f99671 | 884 | |
85407535 | 885 | setEffectiveUser(); |
62e76326 | 886 | |
30a4f2a8 | 887 | if (icpPortNumOverride != 1) |
62e76326 | 888 | Config.Port.icp = (u_short) icpPortNumOverride; |
30a4f2a8 | 889 | |
62493678 | 890 | _db_init(Debug::cache_log, Debug::debugOptions); |
62e76326 | 891 | |
62493678 | 892 | fd_open(fileno(debug_log), FD_LOG, Debug::cache_log); |
62e76326 | 893 | |
71a17702 | 894 | #if MEM_GEN_TRACE |
62e76326 | 895 | |
71a17702 | 896 | log_trace_init("/tmp/squid.alloc"); |
62e76326 | 897 | |
71a17702 | 898 | #endif |
62e76326 | 899 | |
bf8fe701 | 900 | debugs(1, 0, "Starting Squid Cache version " << version_string << " for " << CONFIG_HOST_TYPE << "..."); |
62e76326 | 901 | |
ec4daaa5 | 902 | #ifdef _SQUID_WIN32_ |
b293c4d8 | 903 | |
904 | if (WIN32_run_mode == _WIN_SQUID_RUN_MODE_SERVICE) { | |
bf8fe701 | 905 | debugs(1, 0, "Running as " << WIN32_Service_name << " Windows System Service on " << WIN32_OS_string); |
906 | debugs(1, 0, "Service command line is: " << WIN32_Service_Command_Line); | |
b293c4d8 | 907 | } else |
bf8fe701 | 908 | debugs(1, 0, "Running on " << WIN32_OS_string); |
b293c4d8 | 909 | |
910 | #endif | |
911 | ||
36584579 | 912 | debugs(1, 1, "Process ID " << getpid()); |
62e76326 | 913 | |
bf8fe701 | 914 | debugs(1, 1, "With " << Squid_MaxFD << " file descriptors available"); |
5f3f8d0e | 915 | |
6c1962dd | 916 | #ifdef _SQUID_MSWIN_ |
917 | ||
bf8fe701 | 918 | debugs(1, 1, "With " << _getmaxstdio() << " CRT stdio descriptors available"); |
6c1962dd | 919 | |
920 | if (WIN32_Socks_initialized) | |
bf8fe701 | 921 | debugs(1, 1, "Windows sockets initialized"); |
6c1962dd | 922 | |
babd1fd5 | 923 | if (WIN32_OS_version > _WIN_OS_WINNT) { |
26ac0430 | 924 | WIN32_IpAddrChangeMonitorInit(); |
babd1fd5 | 925 | } |
926 | ||
6c1962dd | 927 | #endif |
928 | ||
9f75c559 | 929 | if (!configured_once) |
62e76326 | 930 | disk_init(); /* disk_init must go before ipcache_init() */ |
931 | ||
5f3f8d0e | 932 | ipcache_init(); |
62e76326 | 933 | |
f88bb09c | 934 | fqdncache_init(); |
62e76326 | 935 | |
0e70aa1e | 936 | parseEtcHosts(); |
62e76326 | 937 | |
3c573763 | 938 | #if USE_DNSSERVERS |
62e76326 | 939 | |
74addf6c | 940 | dnsInit(); |
62e76326 | 941 | |
3c573763 | 942 | #else |
62e76326 | 943 | |
7b724b86 | 944 | idnsInit(); |
62e76326 | 945 | |
eb824054 | 946 | #endif |
62e76326 | 947 | |
74addf6c | 948 | redirectInit(); |
62e76326 | 949 | |
e6ccf245 | 950 | authenticateInit(&Config.authConfiguration); |
62e76326 | 951 | |
d9572179 | 952 | externalAclInit(); |
62e76326 | 953 | |
b012353a | 954 | useragentOpenLog(); |
62e76326 | 955 | |
fd2c5549 | 956 | refererOpenLog(); |
62e76326 | 957 | |
2ac76861 | 958 | httpHeaderInitModule(); /* must go before any header processing (e.g. the one in errorInitialize) */ |
62e76326 | 959 | |
2246b732 | 960 | httpReplyInitModule(); /* must go before accepting replies */ |
62e76326 | 961 | |
9b312a19 | 962 | errorInitialize(); |
62e76326 | 963 | |
7a2f978b | 964 | accessLogInit(); |
62e76326 | 965 | |
e1381638 | 966 | #if ICAP_CLIENT |
3ff65596 AR |
967 | icapLogOpen(); |
968 | #endif | |
969 | ||
3898f57f | 970 | #if USE_IDENT |
4daaf3cb | 971 | Ident::Init(); |
3898f57f | 972 | #endif |
4daaf3cb | 973 | |
5e14bf6d | 974 | #ifdef SQUID_SNMP |
62e76326 | 975 | |
5e14bf6d | 976 | snmpInit(); |
62e76326 | 977 | |
5e14bf6d | 978 | #endif |
30a4f2a8 | 979 | #if MALLOC_DBG |
62e76326 | 980 | |
5f3f8d0e | 981 | malloc_debug(0, malloc_debug_level); |
62e76326 | 982 | |
5f3f8d0e | 983 | #endif |
984 | ||
dbe4fd8e | 985 | if (!configured_once) { |
a3d0a19d | 986 | #if USE_UNLINKD |
62e76326 | 987 | unlinkdInit(); |
988 | #endif | |
989 | ||
990 | urlInitialize(); | |
62e76326 | 991 | statInit(); |
992 | storeInit(); | |
993 | mainSetCwd(); | |
994 | /* after this point we want to see the mallinfo() output */ | |
995 | do_mallinfo = 1; | |
996 | mimeInit(Config.mimeTablePathname); | |
62e76326 | 997 | refreshInit(); |
0d7e5d78 | 998 | #if DELAY_POOLS |
62e76326 | 999 | |
1000 | DelayPools::Init(); | |
0d7e5d78 | 1001 | #endif |
62e76326 | 1002 | |
b6b6f466 | 1003 | FwdState::initModule(); |
62ee09ca | 1004 | /* register the modules in the cache manager menus */ |
62ee09ca | 1005 | |
a08f1b5a | 1006 | cbdataRegisterWithCacheManager(); |
62ee09ca | 1007 | /* These use separate calls so that the comm loops can eventually |
1008 | * coexist. | |
1009 | */ | |
62ee09ca | 1010 | |
15b3c0d7 | 1011 | eventInit(); |
610ee341 | 1012 | |
26ac0430 | 1013 | // TODO: pconn is a good candidate for new-style registration |
6852be71 | 1014 | // PconnModule::GetInstance()->registerWithCacheManager(); |
26ac0430 | 1015 | // moved to PconnModule::PconnModule() |
5f3f8d0e | 1016 | } |
62e76326 | 1017 | |
1f38f50a | 1018 | #if USE_WCCP |
1019 | wccpInit(); | |
62e76326 | 1020 | |
0b0cfcf2 | 1021 | #endif |
1022 | #if USE_WCCPv2 | |
1023 | ||
1024 | wccp2Init(); | |
1025 | ||
1f38f50a | 1026 | #endif |
62e76326 | 1027 | |
2285407f | 1028 | serverConnectionsOpen(); |
62e76326 | 1029 | |
3ee2b4f8 | 1030 | neighbors_init(); |
fc68f6b1 | 1031 | |
5f5e883f | 1032 | // neighborsRegisterWithCacheManager(); //moved to neighbors_init() |
62e76326 | 1033 | |
efd900cb | 1034 | if (Config.chroot_dir) |
62e76326 | 1035 | no_suid(); |
1036 | ||
dbe4fd8e | 1037 | if (!configured_once) |
62e76326 | 1038 | writePidFile(); /* write PID file */ |
0a5b9b32 | 1039 | |
7e7a0442 | 1040 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 1041 | |
e3175d1f | 1042 | squid_signal(SIGQUIT, rotate_logs, SA_RESTART); |
62e76326 | 1043 | |
e3175d1f | 1044 | squid_signal(SIGTRAP, sigusr2_handle, SA_RESTART); |
62e76326 | 1045 | |
e3175d1f | 1046 | #else |
62e76326 | 1047 | |
30a4f2a8 | 1048 | squid_signal(SIGUSR1, rotate_logs, SA_RESTART); |
62e76326 | 1049 | |
30a4f2a8 | 1050 | squid_signal(SIGUSR2, sigusr2_handle, SA_RESTART); |
62e76326 | 1051 | |
9fc0b4b8 | 1052 | #endif |
62e76326 | 1053 | |
30a4f2a8 | 1054 | squid_signal(SIGHUP, reconfigure, SA_RESTART); |
62e76326 | 1055 | |
30a4f2a8 | 1056 | squid_signal(SIGTERM, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1057 | |
30a4f2a8 | 1058 | squid_signal(SIGINT, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1059 | |
ae1feb30 | 1060 | #ifdef SIGTTIN |
1061 | ||
1062 | squid_signal(SIGTTIN, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); | |
1063 | ||
1064 | #endif | |
1065 | ||
58a39dc9 | 1066 | memCheckInit(); |
62e76326 | 1067 | |
57afc994 AR |
1068 | #if USE_LOADABLE_MODULES |
1069 | LoadableModulesConfigure(Config.loadable_module_names); | |
1070 | #endif | |
1071 | ||
8f361c50 AR |
1072 | #if USE_ADAPTATION |
1073 | bool enableAdaptation = false; | |
1074 | ||
1075 | // We can remove this dependency on specific adaptation mechanisms | |
1076 | // if we create a generic Registry of such mechanisms. Should we? | |
b958cb0f | 1077 | #if ICAP_CLIENT |
26cc52cb AR |
1078 | Adaptation::Icap::TheConfig.finalize(); |
1079 | enableAdaptation = Adaptation::Icap::TheConfig.onoff || enableAdaptation; | |
6e5db507 AR |
1080 | #endif |
1081 | #if USE_ECAP | |
574b508c AR |
1082 | Adaptation::Ecap::TheConfig.finalize(); // must be after we load modules |
1083 | enableAdaptation = Adaptation::Ecap::TheConfig.onoff || enableAdaptation; | |
b958cb0f | 1084 | #endif |
8f361c50 AR |
1085 | // must be the last adaptation-related finalize |
1086 | Adaptation::Config::Finalize(enableAdaptation); | |
b958cb0f AR |
1087 | #endif |
1088 | ||
79039294 AR |
1089 | #if USE_SQUID_ESI |
1090 | Esi::Init(); | |
1091 | #endif | |
b958cb0f | 1092 | |
bf8fe701 | 1093 | debugs(1, 1, "Ready to serve requests."); |
62e76326 | 1094 | |
dbe4fd8e | 1095 | if (!configured_once) { |
c8f4eac4 | 1096 | eventAdd("storeMaintain", Store::Maintain, NULL, 1.0, 1); |
62e76326 | 1097 | |
1098 | if (Config.onoff.announce) | |
1099 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
1100 | ||
1101 | eventAdd("ipcache_purgelru", ipcache_purgelru, NULL, 10.0, 1); | |
1102 | ||
1103 | eventAdd("fqdncache_purgelru", fqdncache_purgelru, NULL, 15.0, 1); | |
1104 | ||
88bfe092 | 1105 | #if USE_XPROF_STATS |
62e76326 | 1106 | |
1107 | eventAdd("cpuProfiling", xprof_event, NULL, 1.0, 1); | |
1108 | ||
88bfe092 | 1109 | #endif |
62e76326 | 1110 | |
1111 | eventAdd("memPoolCleanIdlePools", Mem::CleanIdlePools, NULL, 15.0, 1); | |
4d7add01 | 1112 | } |
62e76326 | 1113 | |
dbe4fd8e | 1114 | configured_once = 1; |
4d64d74a | 1115 | } |
1116 | ||
c842329d | 1117 | /// unsafe main routine -- may throw |
f3f3e961 | 1118 | int SquidMain(int argc, char **argv); |
c842329d | 1119 | /// unsafe main routine wrapper to catch exceptions |
6e5db507 AR |
1120 | static int SquidMainSafe(int argc, char **argv); |
1121 | ||
6c1962dd | 1122 | #if USE_WIN32_SERVICE |
1123 | /* When USE_WIN32_SERVICE is defined, the main function is placed in win32.cc */ | |
1124 | extern "C" void WINAPI | |
e1381638 | 1125 | SquidWinSvcMain(int argc, char **argv) |
18631119 AJ |
1126 | { |
1127 | SquidMainSafe(argc, argv); | |
1128 | } | |
6c1962dd | 1129 | #else |
b8d8561b | 1130 | int |
1131 | main(int argc, char **argv) | |
6e5db507 | 1132 | { |
18631119 | 1133 | return SquidMainSafe(argc, argv); |
6e5db507 | 1134 | } |
18631119 | 1135 | #endif |
6e5db507 AR |
1136 | |
1137 | static int | |
1138 | SquidMainSafe(int argc, char **argv) | |
1139 | { | |
1140 | try { | |
1141 | return SquidMain(argc, argv); | |
26ac0430 | 1142 | } catch (const std::exception &e) { |
bba7c3d0 | 1143 | std::cerr << "dying from an unhandled exception: " << e.what() << std::endl; |
26ac0430 AJ |
1144 | throw; |
1145 | } catch (...) { | |
bba7c3d0 | 1146 | std::cerr << "dying from an unhandled exception." << std::endl; |
26ac0430 AJ |
1147 | throw; |
1148 | } | |
1149 | return -1; // not reached | |
6e5db507 AR |
1150 | } |
1151 | ||
f3f3e961 | 1152 | int |
6e5db507 | 1153 | SquidMain(int argc, char **argv) |
9b7292ce | 1154 | { |
a0aa9e74 | 1155 | #ifdef _SQUID_WIN32_ |
1156 | ||
1157 | int WIN32_init_err; | |
1158 | #endif | |
4d64d74a | 1159 | |
a4ba1105 | 1160 | #if HAVE_SBRK |
62e76326 | 1161 | |
9b7292ce | 1162 | sbrk_start = sbrk(0); |
a4ba1105 | 1163 | #endif |
1164 | ||
fb6a61d1 | 1165 | Debug::parseOptions(NULL); |
9b7292ce | 1166 | debug_log = stderr; |
62e76326 | 1167 | |
b9269882 | 1168 | #if defined(SQUID_MAXFD_LIMIT) |
1169 | ||
1170 | if (SQUID_MAXFD_LIMIT < Squid_MaxFD) | |
1171 | Squid_MaxFD = SQUID_MAXFD_LIMIT; | |
1172 | ||
1173 | #endif | |
399e85ea | 1174 | |
ec4daaa5 | 1175 | #ifdef _SQUID_WIN32_ |
6c1962dd | 1176 | |
a0aa9e74 | 1177 | if ((WIN32_init_err = WIN32_Subsystem_Init(&argc, &argv))) |
1178 | return WIN32_init_err; | |
62e76326 | 1179 | |
0e6d05ef | 1180 | #endif |
1181 | ||
9b7292ce | 1182 | /* call mallopt() before anything else */ |
0b29fe44 | 1183 | #if HAVE_MALLOPT |
7328e889 | 1184 | #ifdef M_GRAIN |
9b7292ce | 1185 | /* Round up all sizes to a multiple of this */ |
1186 | mallopt(M_GRAIN, 16); | |
62e76326 | 1187 | |
7328e889 | 1188 | #endif |
1189 | #ifdef M_MXFAST | |
9b7292ce | 1190 | /* biggest size that is considered a small block */ |
1191 | mallopt(M_MXFAST, 256); | |
62e76326 | 1192 | |
7328e889 | 1193 | #endif |
1194 | #ifdef M_NBLKS | |
9b7292ce | 1195 | /* allocate this many small blocks at once */ |
1196 | mallopt(M_NLBLKS, 32); | |
62e76326 | 1197 | |
7328e889 | 1198 | #endif |
1199 | #endif /* HAVE_MALLOPT */ | |
1200 | ||
9b7292ce | 1201 | squid_srandom(time(NULL)); |
4d64d74a | 1202 | |
9b7292ce | 1203 | getCurrentTime(); |
62e76326 | 1204 | |
9b7292ce | 1205 | squid_start = current_time; |
62e76326 | 1206 | |
9b7292ce | 1207 | failure_notify = fatal_dump; |
4d64d74a | 1208 | |
6c1962dd | 1209 | #if USE_WIN32_SERVICE |
1210 | ||
9b7292ce | 1211 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1212 | |
1213 | #endif | |
1214 | ||
9b7292ce | 1215 | mainParseOptions(argc, argv); |
4d64d74a | 1216 | |
9aae6be3 | 1217 | if (opt_parse_cfg_only) { |
26ac0430 | 1218 | Debug::parseOptions("ALL,1"); |
9aae6be3 | 1219 | } |
1220 | ||
6c1962dd | 1221 | #if USE_WIN32_SERVICE |
1222 | ||
26ac0430 | 1223 | if (opt_install_service) { |
9b7292ce | 1224 | WIN32_InstallService(); |
a0aa9e74 | 1225 | return 0; |
9b7292ce | 1226 | } |
6c1962dd | 1227 | |
26ac0430 | 1228 | if (opt_remove_service) { |
9b7292ce | 1229 | WIN32_RemoveService(); |
a0aa9e74 | 1230 | return 0; |
9b7292ce | 1231 | } |
6c1962dd | 1232 | |
26ac0430 | 1233 | if (opt_command_line) { |
9b7292ce | 1234 | WIN32_SetServiceCommandLine(); |
a0aa9e74 | 1235 | return 0; |
9b7292ce | 1236 | } |
6c1962dd | 1237 | |
1238 | #endif | |
1239 | ||
9b7292ce | 1240 | /* parse configuration file |
1241 | * note: in "normal" case this used to be called from mainInitialize() */ | |
1242 | { | |
1243 | int parse_err; | |
62e76326 | 1244 | |
9b7292ce | 1245 | if (!ConfigFile) |
1246 | ConfigFile = xstrdup(DefaultConfigFile); | |
62e76326 | 1247 | |
9b7292ce | 1248 | assert(!configured_once); |
62e76326 | 1249 | |
9b7292ce | 1250 | Mem::Init(); |
62e76326 | 1251 | |
9b7292ce | 1252 | storeFsInit(); /* required for config parsing */ |
62e76326 | 1253 | |
7b5b7ba8 | 1254 | /* TODO: call the FS::Clean() in shutdown to do Fs cleanups */ |
af6a12ee | 1255 | Fs::Init(); |
7b5b7ba8 | 1256 | |
b9ae18aa | 1257 | /* May not be needed for parsing, have not audited for such */ |
1258 | DiskIOModule::SetupAllModules(); | |
1259 | ||
59b2d47f | 1260 | /* Shouldn't be needed for config parsing, but have not audited for such */ |
1261 | StoreFileSystem::SetupAllFs(); | |
1262 | ||
c8f4eac4 | 1263 | /* we may want the parsing process to set this up in the future */ |
1264 | Store::Root(new StoreController); | |
1265 | ||
dd9b1081 | 1266 | parse_err = parseConfigFile(ConfigFile); |
62e76326 | 1267 | |
97244680 | 1268 | Mem::Report(); |
26ac0430 | 1269 | |
18631119 | 1270 | if (opt_parse_cfg_only || parse_err > 0) |
9b7292ce | 1271 | return parse_err; |
9b7292ce | 1272 | } |
c642c141 | 1273 | setUmask(Config.umask); |
9b7292ce | 1274 | if (-1 == opt_send_signal) |
1275 | if (checkRunningPid()) | |
205d7c3b | 1276 | exit(0); |
e13ee7ad | 1277 | |
9bc73deb | 1278 | #if TEST_ACCESS |
62e76326 | 1279 | |
95564b0d | 1280 | comm_init(); |
62e76326 | 1281 | |
9b7292ce | 1282 | comm_select_init(); |
62e76326 | 1283 | |
9b7292ce | 1284 | mainInitialize(); |
62e76326 | 1285 | |
9b7292ce | 1286 | test_access(); |
62e76326 | 1287 | |
9b7292ce | 1288 | return 0; |
62e76326 | 1289 | |
9bc73deb | 1290 | #endif |
1291 | ||
9b7292ce | 1292 | /* send signal to running copy and exit */ |
26ac0430 | 1293 | if (opt_send_signal != -1) { |
9b7292ce | 1294 | /* chroot if configured to run inside chroot */ |
62e76326 | 1295 | |
a572d8be | 1296 | if (Config.chroot_dir) { |
1297 | if (chroot(Config.chroot_dir)) | |
1298 | fatal("failed to chroot"); | |
1299 | ||
1300 | no_suid(); | |
1301 | } else { | |
1302 | leave_suid(); | |
9b7292ce | 1303 | } |
62e76326 | 1304 | |
9b7292ce | 1305 | sendSignal(); |
1306 | /* NOTREACHED */ | |
1307 | } | |
62e76326 | 1308 | |
26ac0430 | 1309 | if (opt_create_swap_dirs) { |
9b7292ce | 1310 | /* chroot if configured to run inside chroot */ |
0e657244 | 1311 | |
9b7292ce | 1312 | if (Config.chroot_dir && chroot(Config.chroot_dir)) { |
1313 | fatal("failed to chroot"); | |
1314 | } | |
62e76326 | 1315 | |
9b7292ce | 1316 | setEffectiveUser(); |
bf8fe701 | 1317 | debugs(0, 0, "Creating Swap Directories"); |
c8f4eac4 | 1318 | Store::Root().create(); |
6c1962dd | 1319 | |
9b7292ce | 1320 | return 0; |
9b7292ce | 1321 | } |
62e76326 | 1322 | |
9b7292ce | 1323 | if (!opt_no_daemon) |
1324 | watch_child(argv); | |
62e76326 | 1325 | |
95564b0d | 1326 | setMaxFD(); |
1327 | ||
1328 | /* init comm module */ | |
1329 | comm_init(); | |
62e76326 | 1330 | |
9b7292ce | 1331 | comm_select_init(); |
4d64d74a | 1332 | |
26ac0430 | 1333 | if (opt_no_daemon) { |
9b7292ce | 1334 | /* we have to init fdstat here. */ |
1335 | fd_open(0, FD_LOG, "stdin"); | |
1336 | fd_open(1, FD_LOG, "stdout"); | |
1337 | fd_open(2, FD_LOG, "stderr"); | |
1338 | } | |
62e76326 | 1339 | |
6c1962dd | 1340 | #if USE_WIN32_SERVICE |
1341 | ||
9b7292ce | 1342 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1343 | |
1344 | #endif | |
1345 | ||
9b7292ce | 1346 | mainInitialize(); |
4d64d74a | 1347 | |
6c1962dd | 1348 | #if USE_WIN32_SERVICE |
1349 | ||
9b7292ce | 1350 | WIN32_svcstatusupdate(SERVICE_RUNNING, 0); |
6c1962dd | 1351 | |
1352 | #endif | |
1353 | ||
9b7292ce | 1354 | /* main loop */ |
a553a5a3 | 1355 | EventLoop mainLoop; |
62e76326 | 1356 | |
9688b0ae | 1357 | SignalEngine signalEngine(mainLoop); |
6c1962dd | 1358 | |
9688b0ae | 1359 | mainLoop.registerEngine(&signalEngine); |
62e76326 | 1360 | |
8ff3fa2e | 1361 | /* TODO: stop requiring the singleton here */ |
1362 | mainLoop.registerEngine(EventScheduler::GetInstance()); | |
62e76326 | 1363 | |
8ff3fa2e | 1364 | StoreRootEngine store_engine; |
615f9581 | 1365 | |
8ff3fa2e | 1366 | mainLoop.registerEngine(&store_engine); |
a774fd3f | 1367 | |
8ff3fa2e | 1368 | CommSelectEngine comm_engine; |
1369 | ||
8ff3fa2e | 1370 | mainLoop.registerEngine(&comm_engine); |
1371 | ||
bef81ea5 | 1372 | mainLoop.setPrimaryEngine(&comm_engine); |
1373 | ||
8ff3fa2e | 1374 | /* use the standard time service */ |
1375 | TimeEngine time_engine; | |
1376 | ||
1377 | mainLoop.setTimeService(&time_engine); | |
1378 | ||
48d54e4d AJ |
1379 | /* at this point we are finished the synchronous startup. */ |
1380 | starting_up = 0; | |
1381 | ||
8ff3fa2e | 1382 | mainLoop.run(); |
1383 | ||
1384 | if (mainLoop.errcount == 10) | |
1385 | fatal_dump("Event loop exited with failure."); | |
1386 | ||
1387 | /* shutdown squid now */ | |
1388 | SquidShutdown(); | |
62e76326 | 1389 | |
9b7292ce | 1390 | /* NOTREACHED */ |
9b7292ce | 1391 | return 0; |
090089c4 | 1392 | } |
7690e8eb | 1393 | |
b8d8561b | 1394 | static void |
0673c0ba | 1395 | sendSignal(void) |
7690e8eb | 1396 | { |
ff8d0ea6 | 1397 | pid_t pid; |
fedac7e5 | 1398 | debug_log = stderr; |
258ac4d7 | 1399 | |
1400 | if (strcmp(Config.pidFilename, "none") == 0) { | |
bf8fe701 | 1401 | debugs(0, 1, "No pid_filename specified. Trusting you know what you are doing."); |
258ac4d7 | 1402 | } |
1403 | ||
fedac7e5 | 1404 | pid = readPidFile(); |
62e76326 | 1405 | |
fedac7e5 | 1406 | if (pid > 1) { |
6c1962dd | 1407 | #if USE_WIN32_SERVICE |
1408 | ||
1409 | if (opt_signal_service) { | |
1410 | WIN32_sendSignal(opt_send_signal); | |
1411 | exit(0); | |
1412 | } else | |
1413 | #ifdef _SQUID_MSWIN_ | |
1414 | { | |
7dbca7a4 | 1415 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
6c1962dd | 1416 | fprintf(stderr, "signal to Squid Service:\n"); |
1417 | fprintf(stderr, "missing -n command line switch.\n"); | |
1418 | exit(1); | |
1419 | } | |
1420 | ||
1421 | /* NOTREACHED */ | |
1422 | #endif | |
1423 | ||
1424 | #endif | |
1425 | ||
62e76326 | 1426 | if (kill(pid, opt_send_signal) && |
1427 | /* ignore permissions if just running check */ | |
1428 | !(opt_send_signal == 0 && errno == EPERM)) { | |
7dbca7a4 | 1429 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
62e76326 | 1430 | fprintf(stderr, "signal %d to process %d: %s\n", |
1431 | opt_send_signal, (int) pid, xstrerror()); | |
1432 | exit(1); | |
1433 | } | |
fedac7e5 | 1434 | } else { |
205d7c3b | 1435 | if (opt_send_signal != SIGTERM) { |
e08d498f | 1436 | fprintf(stderr, "%s: ERROR: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1437 | exit(1); |
1438 | } else { | |
e08d498f | 1439 | fprintf(stderr, "%s: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1440 | exit(0); |
1441 | } | |
7690e8eb | 1442 | } |
62e76326 | 1443 | |
fedac7e5 | 1444 | /* signal successfully sent */ |
1445 | exit(0); | |
1446 | } | |
f95b8144 | 1447 | |
a50bfe93 | 1448 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 1449 | /* |
1450 | * This function is run when Squid is in daemon mode, just | |
1451 | * before the parent forks and starts up the child process. | |
1452 | * It can be used for admin-specific tasks, such as notifying | |
1453 | * someone that Squid is (re)started. | |
1454 | */ | |
1455 | static void | |
1456 | mainStartScript(const char *prog) | |
1457 | { | |
1458 | char script[SQUID_MAXPATHLEN]; | |
1459 | char *t; | |
1460 | size_t sl = 0; | |
1461 | pid_t cpid; | |
1462 | pid_t rpid; | |
1463 | xstrncpy(script, prog, MAXPATHLEN); | |
62e76326 | 1464 | |
e18d7fdc | 1465 | if ((t = strrchr(script, '/'))) { |
62e76326 | 1466 | *(++t) = '\0'; |
1467 | sl = strlen(script); | |
e18d7fdc | 1468 | } |
62e76326 | 1469 | |
e18d7fdc | 1470 | xstrncpy(&script[sl], squid_start_script, MAXPATHLEN - sl); |
62e76326 | 1471 | |
e18d7fdc | 1472 | if ((cpid = fork()) == 0) { |
62e76326 | 1473 | /* child */ |
f75662c9 | 1474 | execl(script, squid_start_script, (char *)NULL); |
482aa790 | 1475 | _exit(-1); |
e18d7fdc | 1476 | } else { |
62e76326 | 1477 | do { |
e18d7fdc | 1478 | #ifdef _SQUID_NEXT_ |
62e76326 | 1479 | union wait status; |
1480 | rpid = wait3(&status, 0, NULL); | |
e18d7fdc | 1481 | #else |
62e76326 | 1482 | |
1483 | int status; | |
1484 | rpid = waitpid(-1, &status, 0); | |
e18d7fdc | 1485 | #endif |
62e76326 | 1486 | |
1487 | } while (rpid != cpid); | |
e18d7fdc | 1488 | } |
1489 | } | |
1490 | ||
a50bfe93 | 1491 | #endif /* _SQUID_MSWIN_ */ |
1492 | ||
efd900cb | 1493 | static int |
1494 | checkRunningPid(void) | |
1495 | { | |
1496 | pid_t pid; | |
e0077312 | 1497 | |
1498 | if (!debug_log) | |
1499 | debug_log = stderr; | |
1500 | ||
efd900cb | 1501 | pid = readPidFile(); |
62e76326 | 1502 | |
efd900cb | 1503 | if (pid < 2) |
62e76326 | 1504 | return 0; |
1505 | ||
efd900cb | 1506 | if (kill(pid, 0) < 0) |
62e76326 | 1507 | return 0; |
1508 | ||
cb7a4fcb | 1509 | debugs(0, 0, "Squid is already running! Process ID " << pid); |
62e76326 | 1510 | |
efd900cb | 1511 | return 1; |
1512 | } | |
1513 | ||
f95b8144 | 1514 | static void |
bbe199dc | 1515 | watch_child(char *argv[]) |
f95b8144 | 1516 | { |
a50bfe93 | 1517 | #ifndef _SQUID_MSWIN_ |
f95b8144 | 1518 | char *prog; |
f95b8144 | 1519 | int failcount = 0; |
1520 | time_t start; | |
1521 | time_t stop; | |
1522 | #ifdef _SQUID_NEXT_ | |
62e76326 | 1523 | |
f95b8144 | 1524 | union wait status; |
1525 | #else | |
62e76326 | 1526 | |
f95b8144 | 1527 | int status; |
1528 | #endif | |
62e76326 | 1529 | |
e3a3b845 | 1530 | pid_t pid; |
c99c5397 | 1531 | #ifdef TIOCNOTTY |
1532 | ||
54f742e7 | 1533 | int i; |
c99c5397 | 1534 | #endif |
1535 | ||
742724a4 | 1536 | int nullfd; |
62e76326 | 1537 | |
f95b8144 | 1538 | if (*(argv[0]) == '(') |
62e76326 | 1539 | return; |
1540 | ||
7dbca7a4 | 1541 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1542 | |
54f742e7 | 1543 | if ((pid = fork()) < 0) |
62e76326 | 1544 | syslog(LOG_ALERT, "fork failed: %s", xstrerror()); |
54f742e7 | 1545 | else if (pid > 0) |
62e76326 | 1546 | exit(0); |
1547 | ||
54f742e7 | 1548 | if (setsid() < 0) |
62e76326 | 1549 | syslog(LOG_ALERT, "setsid failed: %s", xstrerror()); |
1550 | ||
efd900cb | 1551 | closelog(); |
62e76326 | 1552 | |
54f742e7 | 1553 | #ifdef TIOCNOTTY |
62e76326 | 1554 | |
c4aefe96 | 1555 | if ((i = open("/dev/tty", O_RDWR | O_TEXT)) >= 0) { |
62e76326 | 1556 | ioctl(i, TIOCNOTTY, NULL); |
1557 | close(i); | |
54f742e7 | 1558 | } |
62e76326 | 1559 | |
54f742e7 | 1560 | #endif |
b05490a8 | 1561 | |
7f6ffd15 | 1562 | /* |
1563 | * RBCOLLINS - if cygwin stackdumps when squid is run without | |
1564 | * -N, check the cygwin1.dll version, it needs to be AT LEAST | |
1565 | * 1.1.3. execvp had a bit overflow error in a loop.. | |
1566 | */ | |
742724a4 | 1567 | /* Connect stdio to /dev/null in daemon mode */ |
4da086c4 | 1568 | nullfd = open(_PATH_DEVNULL, O_RDWR | O_TEXT); |
62e76326 | 1569 | |
e4a1325e | 1570 | if (nullfd < 0) |
4da086c4 | 1571 | fatalf(_PATH_DEVNULL " %s\n", xstrerror()); |
e4a1325e | 1572 | |
742724a4 | 1573 | dup2(nullfd, 0); |
62e76326 | 1574 | |
62493678 | 1575 | if (Debug::log_stderr < 0) { |
62e76326 | 1576 | dup2(nullfd, 1); |
1577 | dup2(nullfd, 2); | |
742724a4 | 1578 | } |
62e76326 | 1579 | |
f95b8144 | 1580 | for (;;) { |
62e76326 | 1581 | mainStartScript(argv[0]); |
1582 | ||
1583 | if ((pid = fork()) == 0) { | |
1584 | /* child */ | |
7dbca7a4 | 1585 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1586 | prog = xstrdup(argv[0]); |
1587 | argv[0] = xstrdup("(squid)"); | |
1588 | execvp(prog, argv); | |
1589 | syslog(LOG_ALERT, "execvp failed: %s", xstrerror()); | |
1590 | } | |
1591 | ||
1592 | /* parent */ | |
7dbca7a4 | 1593 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1594 | |
1595 | syslog(LOG_NOTICE, "Squid Parent: child process %d started", pid); | |
1596 | ||
1597 | time(&start); | |
1598 | ||
1599 | squid_signal(SIGINT, SIG_IGN, SA_RESTART); | |
1600 | ||
f95b8144 | 1601 | #ifdef _SQUID_NEXT_ |
62e76326 | 1602 | |
1603 | pid = wait3(&status, 0, NULL); | |
1604 | ||
f95b8144 | 1605 | #else |
62e76326 | 1606 | |
1607 | pid = waitpid(-1, &status, 0); | |
1608 | ||
1609 | #endif | |
1610 | ||
1611 | time(&stop); | |
1612 | ||
1613 | if (WIFEXITED(status)) { | |
1614 | syslog(LOG_NOTICE, | |
1615 | "Squid Parent: child process %d exited with status %d", | |
1616 | pid, WEXITSTATUS(status)); | |
1617 | } else if (WIFSIGNALED(status)) { | |
1618 | syslog(LOG_NOTICE, | |
cc192b50 | 1619 | "Squid Parent: child process %d exited due to signal %d with status %d", |
1620 | pid, WTERMSIG(status), WEXITSTATUS(status)); | |
62e76326 | 1621 | } else { |
1622 | syslog(LOG_NOTICE, "Squid Parent: child process %d exited", pid); | |
1623 | } | |
1624 | ||
1625 | if (stop - start < 10) | |
1626 | failcount++; | |
1627 | else | |
1628 | failcount = 0; | |
1629 | ||
1630 | if (failcount == 5) { | |
1631 | syslog(LOG_ALERT, "Exiting due to repeated, frequent failures"); | |
1632 | exit(1); | |
1633 | } | |
1634 | ||
1635 | if (WIFEXITED(status)) | |
1636 | if (WEXITSTATUS(status) == 0) | |
1637 | exit(0); | |
1638 | ||
1639 | if (WIFSIGNALED(status)) { | |
1640 | switch (WTERMSIG(status)) { | |
1641 | ||
1642 | case SIGKILL: | |
1643 | exit(0); | |
1644 | break; | |
1645 | ||
06a0fbd3 | 1646 | case SIGINT: |
1647 | case SIGTERM: | |
26ac0430 | 1648 | syslog(LOG_ALERT, "Exiting due to unexpected forced shutdown"); |
06a0fbd3 | 1649 | exit(1); |
1650 | break; | |
1651 | ||
62e76326 | 1652 | default: |
1653 | break; | |
1654 | } | |
1655 | } | |
1656 | ||
1657 | squid_signal(SIGINT, SIG_DFL, SA_RESTART); | |
1658 | sleep(3); | |
f95b8144 | 1659 | } |
62e76326 | 1660 | |
bbe199dc | 1661 | /* NOTREACHED */ |
a50bfe93 | 1662 | #endif /* _SQUID_MSWIN_ */ |
a572d8be | 1663 | |
f95b8144 | 1664 | } |
fff6ad65 | 1665 | |
9ec1a1dc | 1666 | static void |
8ff3fa2e | 1667 | SquidShutdown() |
fff6ad65 | 1668 | { |
d71e4674 AR |
1669 | /* XXX: This function is called after the main loop has quit, which |
1670 | * means that no AsyncCalls would be called, including close handlers. | |
1671 | * TODO: We need to close/shut/free everything that needs calls before | |
1672 | * exiting the loop. | |
26ac0430 | 1673 | */ |
d71e4674 | 1674 | |
6c1962dd | 1675 | #if USE_WIN32_SERVICE |
1676 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1677 | #endif | |
1678 | ||
bf8fe701 | 1679 | debugs(1, 1, "Shutting down..."); |
95a83c22 | 1680 | #if USE_DNSSERVERS |
1681 | ||
1682 | dnsShutdown(); | |
1683 | #else | |
1684 | ||
1685 | idnsShutdown(); | |
1686 | #endif | |
1687 | ||
1688 | redirectShutdown(); | |
1689 | externalAclShutdown(); | |
d723bf6b | 1690 | icpConnectionClose(); |
1691 | #if USE_HTCP | |
62e76326 | 1692 | |
d723bf6b | 1693 | htcpSocketClose(); |
1694 | #endif | |
1695 | #ifdef SQUID_SNMP | |
62e76326 | 1696 | |
d723bf6b | 1697 | snmpConnectionClose(); |
320e9f36 | 1698 | #endif |
eb824054 | 1699 | #if USE_WCCP |
62e76326 | 1700 | |
320e9f36 | 1701 | wccpConnectionClose(); |
d723bf6b | 1702 | #endif |
0b0cfcf2 | 1703 | #if USE_WCCPv2 |
1704 | ||
1705 | wccp2ConnectionClose(); | |
1706 | #endif | |
62e76326 | 1707 | |
fff6ad65 | 1708 | releaseServerSockets(); |
d723bf6b | 1709 | commCloseAllSockets(); |
79039294 AR |
1710 | |
1711 | #if USE_SQUID_ESI | |
1712 | Esi::Clean(); | |
1713 | #endif | |
1714 | ||
515ec4dc | 1715 | #if DELAY_POOLS |
62e76326 | 1716 | |
b67e2c8c | 1717 | DelayPools::FreePools(); |
515ec4dc | 1718 | #endif |
62e76326 | 1719 | |
5dae8514 | 1720 | authenticateShutdown(); |
6c1962dd | 1721 | #if USE_WIN32_SERVICE |
1722 | ||
1723 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1724 | #endif | |
62e76326 | 1725 | |
c8f4eac4 | 1726 | Store::Root().sync(); /* Flush pending object writes/unlinks */ |
4d075ba0 | 1727 | #if USE_UNLINKD |
1728 | ||
1729 | unlinkdClose(); /* after sync/flush */ | |
1730 | #endif | |
fc68f6b1 | 1731 | |
fff6ad65 | 1732 | storeDirWriteCleanLogs(0); |
1733 | PrintRusage(); | |
1734 | dumpMallocStats(); | |
c8f4eac4 | 1735 | Store::Root().sync(); /* Flush log writes */ |
fff6ad65 | 1736 | storeLogClose(); |
1737 | accessLogClose(); | |
5b824235 | 1738 | useragentLogClose(); |
c9b99797 | 1739 | refererCloseLog(); |
225644d7 | 1740 | #if WIP_FWD_LOG |
62e76326 | 1741 | |
225644d7 | 1742 | fwdUninit(); |
1743 | #endif | |
62e76326 | 1744 | |
c8f4eac4 | 1745 | Store::Root().sync(); /* Flush log close */ |
59b2d47f | 1746 | StoreFileSystem::FreeAllFs(); |
b9ae18aa | 1747 | DiskIOModule::FreeAllModules(); |
afec404b | 1748 | #if LEAK_CHECK_MODE && 0 /* doesn't work at the moment */ |
62e76326 | 1749 | |
fff6ad65 | 1750 | configFreeMemory(); |
1751 | storeFreeMemory(); | |
33ab18e8 | 1752 | /*stmemFreeMemory(); */ |
fff6ad65 | 1753 | netdbFreeMemory(); |
1754 | ipcacheFreeMemory(); | |
1755 | fqdncacheFreeMemory(); | |
1756 | asnFreeMemory(); | |
26a369ba | 1757 | clientdbFreeMemory(); |
7021844c | 1758 | httpHeaderCleanModule(); |
d2db411c | 1759 | statFreeMemory(); |
f1fc2a8d | 1760 | eventFreeMemory(); |
c68e9c6b | 1761 | mimeFreeMemory(); |
1762 | errorClean(); | |
fff6ad65 | 1763 | #endif |
26a369ba | 1764 | #if !XMALLOC_TRACE |
62e76326 | 1765 | |
54f742e7 | 1766 | if (opt_no_daemon) { |
62e76326 | 1767 | file_close(0); |
1768 | file_close(1); | |
1769 | file_close(2); | |
54f742e7 | 1770 | } |
62e76326 | 1771 | |
33ab18e8 | 1772 | #endif |
fff6ad65 | 1773 | fdDumpOpen(); |
62e76326 | 1774 | |
236d1779 | 1775 | comm_exit(); |
62e76326 | 1776 | |
ddb43c58 | 1777 | memClean(); |
62e76326 | 1778 | |
33ab18e8 | 1779 | #if XMALLOC_TRACE |
62e76326 | 1780 | |
26a369ba | 1781 | xmalloc_find_leaks(); |
62e76326 | 1782 | |
bf8fe701 | 1783 | debugs(1, 0, "Memory used after shutdown: " << xmalloc_total); |
62e76326 | 1784 | |
33ab18e8 | 1785 | #endif |
36a97e19 | 1786 | #if MEM_GEN_TRACE |
62e76326 | 1787 | |
399e85ea | 1788 | log_trace_done(); |
62e76326 | 1789 | |
36a97e19 | 1790 | #endif |
62e76326 | 1791 | |
ab50ee9e | 1792 | if (Config.pidFilename && strcmp(Config.pidFilename, "none") != 0) { |
62e76326 | 1793 | enter_suid(); |
1794 | safeunlink(Config.pidFilename, 0); | |
1795 | leave_suid(); | |
ab50ee9e | 1796 | } |
62e76326 | 1797 | |
bf8fe701 | 1798 | debugs(1, 1, "Squid Cache (Version " << version_string << "): Exiting normally."); |
62e76326 | 1799 | |
0cfa98cb | 1800 | /* |
1801 | * DPW 2006-10-23 | |
1802 | * We used to fclose(debug_log) here if it was set, but then | |
1803 | * we forgot to set it to NULL. That caused some coredumps | |
1804 | * because exit() ends up calling a bunch of destructors and | |
1805 | * such. So rather than forcing the debug_log to close, we'll | |
1806 | * leave it open so that those destructors can write some | |
1807 | * debugging if necessary. The file will be closed anyway when | |
1808 | * the process truly exits. | |
1809 | */ | |
62e76326 | 1810 | |
ae1feb30 | 1811 | exit(shutdown_status); |
fff6ad65 | 1812 | } |
bef81ea5 | 1813 |