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30a4f2a8 | 1 | /* |
262a0e14 | 2 | * $Id$ |
30a4f2a8 | 3 | * |
b510f3a1 | 4 | * DEBUG: section 01 Startup and Main Loop |
30a4f2a8 | 5 | * AUTHOR: Harvest Derived |
6 | * | |
2b6662ba | 7 | * SQUID Web Proxy Cache http://www.squid-cache.org/ |
e25c139f | 8 | * ---------------------------------------------------------- |
30a4f2a8 | 9 | * |
2b6662ba | 10 | * Squid is the result of efforts by numerous individuals from |
11 | * the Internet community; see the CONTRIBUTORS file for full | |
12 | * details. Many organizations have provided support for Squid's | |
13 | * development; see the SPONSORS file for full details. Squid is | |
14 | * Copyrighted (C) 2001 by the Regents of the University of | |
15 | * California; see the COPYRIGHT file for full details. Squid | |
16 | * incorporates software developed and/or copyrighted by other | |
17 | * sources; see the CREDITS file for full details. | |
30a4f2a8 | 18 | * |
19 | * This program is free software; you can redistribute it and/or modify | |
20 | * it under the terms of the GNU General Public License as published by | |
21 | * the Free Software Foundation; either version 2 of the License, or | |
22 | * (at your option) any later version. | |
26ac0430 | 23 | * |
30a4f2a8 | 24 | * This program is distributed in the hope that it will be useful, |
25 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
26 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
27 | * GNU General Public License for more details. | |
26ac0430 | 28 | * |
30a4f2a8 | 29 | * You should have received a copy of the GNU General Public License |
30 | * along with this program; if not, write to the Free Software | |
cbdec147 | 31 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111, USA. |
e25c139f | 32 | * |
30a4f2a8 | 33 | */ |
44a47c6e | 34 | |
35 | #include "squid.h" | |
450e0c10 | 36 | #include "AccessLogEntry.h" |
3ff65596 AR |
37 | #if ICAP_CLIENT |
38 | #include "adaptation/icap/icap_log.h" | |
39 | #endif | |
3ad63615 | 40 | #include "auth/Gadgets.h" |
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" |
40daaeb8 | 59 | #include "ipc/Kids.h" |
10cefb7b | 60 | #include "ipc/Coordinator.h" |
61 | #include "ipc/Strand.h" | |
055421ee | 62 | #include "ip/tools.h" |
62ee09ca | 63 | #if USE_EPOLL |
64 | #include "comm_epoll.h" | |
65 | #endif | |
66 | #if USE_KQUEUE | |
67 | #include "comm_kqueue.h" | |
68 | #endif | |
69 | #if USE_POLL | |
70 | #include "comm_poll.h" | |
71 | #endif | |
7cdb47bc | 72 | #if defined(USE_SELECT) || defined(USE_SELECT_WIN32) |
663c0a38 | 73 | #include "comm_select.h" |
74 | #endif | |
985c86bc | 75 | #include "SquidTime.h" |
c8f4eac4 | 76 | #include "SwapDir.h" |
b6b6f466 | 77 | #include "forward.h" |
d9e7ee1f | 78 | #include "MemPool.h" |
9b5c4a9a AJ |
79 | #include "icmp/IcmpSquid.h" |
80 | #include "icmp/net_db.h" | |
44a47c6e | 81 | |
57afc994 AR |
82 | #if USE_LOADABLE_MODULES |
83 | #include "LoadableModules.h" | |
84 | #endif | |
85 | ||
b958cb0f | 86 | #if ICAP_CLIENT |
26cc52cb | 87 | #include "adaptation/icap/Config.h" |
b958cb0f | 88 | #endif |
6e5db507 | 89 | #if USE_ECAP |
1f3c65fc | 90 | #include "adaptation/ecap/Config.h" |
6e5db507 | 91 | #endif |
b958cb0f AR |
92 | #if USE_ADAPTATION |
93 | #include "adaptation/Config.h" | |
94 | #endif | |
95 | ||
79039294 AR |
96 | #if USE_SQUID_ESI |
97 | #include "esi/Module.h" | |
98 | #endif | |
99 | ||
7b5b7ba8 CT |
100 | #include "fs/Module.h" |
101 | ||
1a774556 | 102 | #if USE_WIN32_SERVICE |
103 | ||
104 | #include "squid_windows.h" | |
105 | #include <process.h> | |
106 | ||
107 | static int opt_install_service = FALSE; | |
108 | static int opt_remove_service = FALSE; | |
109 | static int opt_signal_service = FALSE; | |
110 | static int opt_command_line = FALSE; | |
111 | extern void WIN32_svcstatusupdate(DWORD, DWORD); | |
112 | void WINAPI WIN32_svcHandler(DWORD); | |
113 | ||
114 | #endif | |
115 | ||
63be0a78 | 116 | /** for error reporting from xmalloc and friends */ |
b293c4d8 | 117 | SQUIDCEXTERN void (*failure_notify) (const char *); |
30a4f2a8 | 118 | |
e13ee7ad | 119 | static int opt_parse_cfg_only = 0; |
5e6d4736 | 120 | static char *opt_syslog_facility = NULL; |
30a4f2a8 | 121 | static int icpPortNumOverride = 1; /* Want to detect "-u 0" */ |
e13ee7ad | 122 | static int configured_once = 0; |
30a4f2a8 | 123 | #if MALLOC_DBG |
4d64d74a | 124 | static int malloc_debug_level = 0; |
30a4f2a8 | 125 | #endif |
5cd39a10 | 126 | static volatile int do_reconfigure = 0; |
127 | static volatile int do_rotate = 0; | |
2681d383 | 128 | static volatile int do_shutdown = 0; |
ae1feb30 | 129 | static volatile int shutdown_status = 0; |
4d7add01 | 130 | |
a2c48c98 AR |
131 | static int RotateSignal = -1; |
132 | static int ReconfigureSignal = -1; | |
133 | static int ShutdownSignal = -1; | |
134 | ||
5cd39a10 | 135 | static void mainRotate(void); |
d71e4674 AR |
136 | static void mainReconfigureStart(void); |
137 | static void mainReconfigureFinish(void*); | |
f5b8bbc4 | 138 | static void mainInitialize(void); |
f5b8bbc4 | 139 | static void usage(void); |
63be0a78 | 140 | static void mainParseOptions(int argc, char *argv[]); |
f5b8bbc4 | 141 | static void sendSignal(void); |
142 | static void serverConnectionsOpen(void); | |
d71e4674 | 143 | static void serverConnectionsClose(void); |
bbe199dc | 144 | static void watch_child(char **); |
85407535 | 145 | static void setEffectiveUser(void); |
36a97e19 | 146 | #if MEM_GEN_TRACE |
147 | extern void log_trace_done(); | |
148 | extern void log_trace_init(char *); | |
149 | #endif | |
8ff3fa2e | 150 | static void SquidShutdown(void); |
b6a2f15e | 151 | static void mainSetCwd(void); |
efd900cb | 152 | static int checkRunningPid(void); |
85407535 | 153 | |
b293c4d8 | 154 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 155 | static const char *squid_start_script = "squid_start"; |
b293c4d8 | 156 | #endif |
e18d7fdc | 157 | |
9bc73deb | 158 | #if TEST_ACCESS |
159 | #include "test_access.c" | |
160 | #endif | |
161 | ||
63be0a78 | 162 | /** temporary thunk across to the unrefactored store interface */ |
8ff3fa2e | 163 | |
164 | class StoreRootEngine : public AsyncEngine | |
165 | { | |
166 | ||
167 | public: | |
26ac0430 | 168 | int checkEvents(int timeout) { |
8ff3fa2e | 169 | Store::Root().callback(); |
170 | return EVENT_IDLE; | |
171 | }; | |
172 | }; | |
173 | ||
9688b0ae | 174 | class SignalEngine: public AsyncEngine |
a553a5a3 | 175 | { |
176 | ||
177 | public: | |
e053c141 | 178 | SignalEngine(EventLoop &evtLoop) : loop(evtLoop) {} |
9688b0ae | 179 | virtual int checkEvents(int timeout); |
a553a5a3 | 180 | |
181 | private: | |
26ac0430 | 182 | static void StopEventLoop(void * data) { |
9688b0ae | 183 | static_cast<SignalEngine *>(data)->loop.stop(); |
a553a5a3 | 184 | } |
185 | ||
9688b0ae | 186 | void doShutdown(time_t wait); |
187 | ||
a553a5a3 | 188 | EventLoop &loop; |
189 | }; | |
190 | ||
9688b0ae | 191 | int |
192 | SignalEngine::checkEvents(int timeout) | |
a553a5a3 | 193 | { |
9688b0ae | 194 | PROF_start(SignalEngine_checkEvents); |
fc68f6b1 | 195 | |
a553a5a3 | 196 | if (do_reconfigure) { |
d71e4674 | 197 | mainReconfigureStart(); |
a553a5a3 | 198 | do_reconfigure = 0; |
a553a5a3 | 199 | } else if (do_rotate) { |
200 | mainRotate(); | |
201 | do_rotate = 0; | |
202 | } else if (do_shutdown) { | |
9688b0ae | 203 | doShutdown(do_shutdown > 0 ? (int) Config.shutdownLifetime : 0); |
a553a5a3 | 204 | do_shutdown = 0; |
26ac0430 | 205 | } |
a2c48c98 AR |
206 | BroadcastSignalIfAny(DebugSignal); |
207 | BroadcastSignalIfAny(RotateSignal); | |
208 | BroadcastSignalIfAny(ReconfigureSignal); | |
209 | BroadcastSignalIfAny(ShutdownSignal); | |
a553a5a3 | 210 | |
9688b0ae | 211 | PROF_stop(SignalEngine_checkEvents); |
212 | return EVENT_IDLE; | |
213 | } | |
a553a5a3 | 214 | |
9688b0ae | 215 | void |
216 | SignalEngine::doShutdown(time_t wait) | |
217 | { | |
218 | debugs(1, 1, "Preparing for shutdown after " << statCounter.client_http.requests << " requests"); | |
219 | debugs(1, 1, "Waiting " << wait << " seconds for active connections to finish"); | |
8ff3fa2e | 220 | |
9688b0ae | 221 | shutting_down = 1; |
222 | ||
223 | #if USE_WIN32_SERVICE | |
224 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, (wait + 1) * 1000); | |
225 | #endif | |
226 | ||
0bcb6908 | 227 | /* run the closure code which can be shared with reconfigure */ |
9688b0ae | 228 | serverConnectionsClose(); |
0bcb6908 AJ |
229 | |
230 | /* detach the auth components (only do this on full shutdown) */ | |
231 | AuthScheme::FreeAll(); | |
232 | ||
9688b0ae | 233 | eventAdd("SquidShutdown", &StopEventLoop, this, (double) (wait + 1), 1, false); |
a553a5a3 | 234 | } |
235 | ||
b8d8561b | 236 | static void |
0673c0ba | 237 | usage(void) |
ccff9601 | 238 | { |
0ee4272b | 239 | fprintf(stderr, |
0e657244 | 240 | #if USE_WIN32_SERVICE |
8eb28163 | 241 | "Usage: %s [-cdhirvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal] [-n name] [-O CommandLine]\n" |
0e657244 | 242 | #else |
8eb28163 | 243 | "Usage: %s [-cdhvzCFNRVYX] [-s | -l facility] [-f config-file] [-[au] port] [-k signal]\n" |
0e657244 | 244 | #endif |
62e76326 | 245 | " -a port Specify HTTP port number (default: %d).\n" |
246 | " -d level Write debugging to stderr also.\n" | |
247 | " -f file Use given config-file instead of\n" | |
248 | " %s\n" | |
249 | " -h Print help message.\n" | |
0e657244 | 250 | #if USE_WIN32_SERVICE |
251 | " -i Installs as a Windows Service (see -n option).\n" | |
252 | #endif | |
62e76326 | 253 | " -k reconfigure|rotate|shutdown|interrupt|kill|debug|check|parse\n" |
254 | " Parse configuration file, then send signal to \n" | |
255 | " running copy (except -k parse) and exit.\n" | |
0e657244 | 256 | #if USE_WIN32_SERVICE |
257 | " -n name Specify Windows Service name to use for service operations\n" | |
258 | " default is: " _WIN_SQUID_DEFAULT_SERVICE_NAME ".\n" | |
259 | " -r Removes a Windows Service (see -n option).\n" | |
260 | #endif | |
5e6d4736 | 261 | " -s | -l facility\n" |
262 | " Enable logging to syslog.\n" | |
62e76326 | 263 | " -u port Specify ICP port number (default: %d), disable with 0.\n" |
264 | " -v Print version.\n" | |
265 | " -z Create swap directories\n" | |
266 | " -C Do not catch fatal signals.\n" | |
8eb28163 | 267 | " -D OBSOLETE. Scheduled for removal.\n" |
62e76326 | 268 | " -F Don't serve any requests until store is rebuilt.\n" |
269 | " -N No daemon mode.\n" | |
0e657244 | 270 | #if USE_WIN32_SERVICE |
271 | " -O options\n" | |
272 | " Set Windows Service Command line options in Registry.\n" | |
273 | #endif | |
62e76326 | 274 | " -R Do not set REUSEADDR on port.\n" |
275 | " -S Double-check swap during rebuild.\n" | |
62e76326 | 276 | " -X Force full debugging.\n" |
277 | " -Y Only return UDP_HIT or UDP_MISS_NOFETCH during fast reload.\n", | |
7dbca7a4 | 278 | APP_SHORTNAME, CACHE_HTTP_PORT, DefaultConfigFile, CACHE_ICP_PORT); |
77ffc99f | 279 | exit(1); |
ccff9601 | 280 | } |
281 | ||
63be0a78 | 282 | /** |
283 | * Parse the parameters received via command line interface. | |
284 | * | |
d85b8894 AJ |
285 | \param argc Number of options received on command line |
286 | \param argv List of parameters received on command line | |
63be0a78 | 287 | */ |
b8d8561b | 288 | static void |
289 | mainParseOptions(int argc, char *argv[]) | |
090089c4 | 290 | { |
090089c4 | 291 | extern char *optarg; |
4d64d74a | 292 | int c; |
090089c4 | 293 | |
0e657244 | 294 | #if USE_WIN32_SERVICE |
5e6d4736 | 295 | while ((c = getopt(argc, argv, "CDFNO:RSVYXa:d:f:hik:m::n:rsl:u:vz?")) != -1) |
0e657244 | 296 | #else |
05f1c52c | 297 | while ((c = getopt(argc, argv, "CDFNRSYXa:d:f:hk:m::sl:u:vz?")) != -1) |
0e657244 | 298 | #endif |
9b7292ce | 299 | { |
300 | ||
26ac0430 | 301 | switch (c) { |
62e76326 | 302 | |
303 | case 'C': | |
63be0a78 | 304 | /** \par C |
305 | * Unset/disabel global option for catchign signals. opt_catch_signals */ | |
62e76326 | 306 | opt_catch_signals = 0; |
307 | break; | |
308 | ||
309 | case 'D': | |
63be0a78 | 310 | /** \par D |
8eb28163 AJ |
311 | * OBSOLETE: WAS: override to prevent optional startup DNS tests. */ |
312 | debugs(1,DBG_CRITICAL, "WARNING: -D command-line option is obsolete."); | |
62e76326 | 313 | break; |
314 | ||
315 | case 'F': | |
63be0a78 | 316 | /** \par F |
317 | * Set global option for foreground rebuild. opt_foreground_rebuild */ | |
62e76326 | 318 | opt_foreground_rebuild = 1; |
319 | break; | |
320 | ||
321 | case 'N': | |
63be0a78 | 322 | /** \par N |
323 | * Set global option for 'no_daemon' mode. opt_no_daemon */ | |
62e76326 | 324 | opt_no_daemon = 1; |
325 | break; | |
63be0a78 | 326 | |
0e657244 | 327 | #if USE_WIN32_SERVICE |
328 | ||
329 | case 'O': | |
63be0a78 | 330 | /** \par O |
331 | * Set global option. opt_command_lin and WIN32_Command_Line */ | |
0e657244 | 332 | opt_command_line = 1; |
333 | WIN32_Command_Line = xstrdup(optarg); | |
334 | break; | |
335 | #endif | |
62e76326 | 336 | |
337 | case 'R': | |
63be0a78 | 338 | /** \par R |
339 | * Unset/disable global option opt_reuseaddr */ | |
62e76326 | 340 | opt_reuseaddr = 0; |
341 | break; | |
342 | ||
343 | case 'S': | |
63be0a78 | 344 | /** \par S |
345 | * Set global option opt_store_doublecheck */ | |
62e76326 | 346 | opt_store_doublecheck = 1; |
347 | break; | |
348 | ||
62e76326 | 349 | case 'X': |
63be0a78 | 350 | /** \par X |
351 | * Force full debugging */ | |
62493678 AJ |
352 | Debug::parseOptions("rotate=0 ALL,9"); |
353 | Debug::override_X = 1; | |
62e76326 | 354 | sigusr2_handle(SIGUSR2); |
62e76326 | 355 | break; |
356 | ||
357 | case 'Y': | |
63be0a78 | 358 | /** \par Y |
359 | * Set global option opt_reload_hit_only */ | |
62e76326 | 360 | opt_reload_hit_only = 1; |
62e76326 | 361 | break; |
362 | ||
0e657244 | 363 | #if USE_WIN32_SERVICE |
364 | ||
365 | case 'i': | |
63be0a78 | 366 | /** \par i |
367 | * Set global option opt_install_service (to TRUE) */ | |
0e657244 | 368 | opt_install_service = TRUE; |
0e657244 | 369 | break; |
0e657244 | 370 | #endif |
371 | ||
62e76326 | 372 | case 'a': |
63be0a78 | 373 | /** \par a |
374 | * Add optional HTTP port as given following the option */ | |
62e76326 | 375 | add_http_port(optarg); |
62e76326 | 376 | break; |
377 | ||
378 | case 'd': | |
63be0a78 | 379 | /** \par d |
62493678 AJ |
380 | * Set global option Debug::log_stderr to the number given follwoign the option */ |
381 | Debug::log_stderr = atoi(optarg); | |
62e76326 | 382 | break; |
383 | ||
384 | case 'f': | |
63be0a78 | 385 | /** \par f |
386 | * Load the file given instead of the default squid.conf. */ | |
62e76326 | 387 | xfree(ConfigFile); |
62e76326 | 388 | ConfigFile = xstrdup(optarg); |
62e76326 | 389 | break; |
390 | ||
391 | case 'k': | |
63be0a78 | 392 | /** \par k |
393 | * Run the administrative action given following the option */ | |
fc68f6b1 | 394 | |
63be0a78 | 395 | /** \li When its an unknown option display the usage help. */ |
62e76326 | 396 | if ((int) strlen(optarg) < 1) |
397 | usage(); | |
398 | ||
399 | if (!strncmp(optarg, "reconfigure", strlen(optarg))) | |
63be0a78 | 400 | /** \li On reconfigure send SIGHUP. */ |
62e76326 | 401 | opt_send_signal = SIGHUP; |
402 | else if (!strncmp(optarg, "rotate", strlen(optarg))) | |
63be0a78 | 403 | /** \li On rotate send SIGQUIT or SIGUSR1. */ |
7e7a0442 | 404 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 405 | |
406 | opt_send_signal = SIGQUIT; | |
407 | ||
e3175d1f | 408 | #else |
62e76326 | 409 | |
410 | opt_send_signal = SIGUSR1; | |
411 | ||
e3175d1f | 412 | #endif |
62e76326 | 413 | |
414 | else if (!strncmp(optarg, "debug", strlen(optarg))) | |
63be0a78 | 415 | /** \li On debug send SIGTRAP or SIGUSR2. */ |
7e7a0442 | 416 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 417 | |
418 | opt_send_signal = SIGTRAP; | |
419 | ||
e3175d1f | 420 | #else |
62e76326 | 421 | |
422 | opt_send_signal = SIGUSR2; | |
423 | ||
424 | #endif | |
425 | ||
426 | else if (!strncmp(optarg, "shutdown", strlen(optarg))) | |
63be0a78 | 427 | /** \li On shutdown send SIGTERM. */ |
62e76326 | 428 | opt_send_signal = SIGTERM; |
429 | else if (!strncmp(optarg, "interrupt", strlen(optarg))) | |
63be0a78 | 430 | /** \li On interrupt send SIGINT. */ |
62e76326 | 431 | opt_send_signal = SIGINT; |
432 | else if (!strncmp(optarg, "kill", strlen(optarg))) | |
63be0a78 | 433 | /** \li On kill send SIGKILL. */ |
62e76326 | 434 | opt_send_signal = SIGKILL; |
ae1feb30 | 435 | |
436 | #ifdef SIGTTIN | |
437 | ||
438 | else if (!strncmp(optarg, "restart", strlen(optarg))) | |
63be0a78 | 439 | /** \li On restart send SIGTTIN. (exit and restart by parent) */ |
440 | opt_send_signal = SIGTTIN; | |
ae1feb30 | 441 | |
442 | #endif | |
443 | ||
62e76326 | 444 | else if (!strncmp(optarg, "check", strlen(optarg))) |
63be0a78 | 445 | /** \li On check send 0 / SIGNULL. */ |
62e76326 | 446 | opt_send_signal = 0; /* SIGNULL */ |
447 | else if (!strncmp(optarg, "parse", strlen(optarg))) | |
63be0a78 | 448 | /** \li On parse set global flag to re-parse the config file only. */ |
449 | opt_parse_cfg_only = 1; | |
62e76326 | 450 | else |
451 | usage(); | |
452 | ||
453 | break; | |
454 | ||
455 | case 'm': | |
63be0a78 | 456 | /** \par m |
457 | * Set global malloc_debug_level to the value given following the option. | |
458 | * if none is given it toggles the xmalloc_trace option on/off */ | |
62e76326 | 459 | if (optarg) { |
30a4f2a8 | 460 | #if MALLOC_DBG |
fc68f6b1 | 461 | malloc_debug_level = atoi(optarg); |
30a4f2a8 | 462 | #else |
fc68f6b1 | 463 | fatal("Need to add -DMALLOC_DBG when compiling to use -mX option"); |
33ab18e8 | 464 | #endif |
62e76326 | 465 | |
466 | } else { | |
33ab18e8 | 467 | #if XMALLOC_TRACE |
62e76326 | 468 | xmalloc_trace = !xmalloc_trace; |
33ab18e8 | 469 | #else |
62e76326 | 470 | fatal("Need to configure --enable-xmalloc-debug-trace to use -m option"); |
30a4f2a8 | 471 | #endif |
62e76326 | 472 | } |
d9e7ee1f | 473 | break; |
d9e7ee1f | 474 | |
0e657244 | 475 | #if USE_WIN32_SERVICE |
476 | ||
477 | case 'n': | |
63be0a78 | 478 | /** \par n |
479 | * Set global option opt_signal_service (to TRUE). | |
480 | * Stores the additional parameter given in global WIN32_Service_name */ | |
0e657244 | 481 | xfree(WIN32_Service_name); |
482 | ||
483 | WIN32_Service_name = xstrdup(optarg); | |
484 | ||
485 | opt_signal_service = TRUE; | |
486 | ||
487 | break; | |
488 | ||
489 | case 'r': | |
63be0a78 | 490 | /** \par r |
491 | * Set global option opt_remove_service (to TRUE) */ | |
0e657244 | 492 | opt_remove_service = TRUE; |
493 | ||
494 | break; | |
495 | ||
496 | #endif | |
497 | ||
5e6d4736 | 498 | case 'l': |
63be0a78 | 499 | /** \par l |
500 | * Stores the syslog facility name in global opt_syslog_facility | |
501 | * then performs actions for -s option. */ | |
5e6d4736 | 502 | opt_syslog_facility = xstrdup(optarg); |
503 | ||
62e76326 | 504 | case 's': |
63be0a78 | 505 | /** \par s |
506 | * Initialize the syslog for output */ | |
c307aec3 | 507 | #if HAVE_SYSLOG |
62e76326 | 508 | |
5e6d4736 | 509 | _db_set_syslog(opt_syslog_facility); |
0e657244 | 510 | |
62e76326 | 511 | break; |
0e657244 | 512 | |
c307aec3 | 513 | #else |
62e76326 | 514 | |
515 | fatal("Logging to syslog not available on this platform"); | |
0e657244 | 516 | |
62e76326 | 517 | /* NOTREACHED */ |
518 | #endif | |
519 | ||
520 | case 'u': | |
63be0a78 | 521 | /** \par u |
522 | * Store the ICP port number given in global option icpPortNumOverride | |
523 | * ensuring its a positive number. */ | |
62e76326 | 524 | icpPortNumOverride = atoi(optarg); |
525 | ||
526 | if (icpPortNumOverride < 0) | |
527 | icpPortNumOverride = 0; | |
528 | ||
529 | break; | |
530 | ||
531 | case 'v': | |
63be0a78 | 532 | /** \par v |
533 | * Display squid version and build information. Then exit. */ | |
62e76326 | 534 | printf("Squid Cache: Version %s\nconfigure options: %s\n", version_string, SQUID_CONFIGURE_OPTIONS); |
535 | ||
1a774556 | 536 | #if USE_WIN32_SERVICE |
537 | ||
538 | printf("Compiled as Windows System Service.\n"); | |
539 | ||
540 | #endif | |
541 | ||
62e76326 | 542 | exit(0); |
543 | ||
544 | /* NOTREACHED */ | |
545 | ||
546 | case 'z': | |
63be0a78 | 547 | /** \par z |
62493678 AJ |
548 | * Set global option Debug::log_stderr and opt_create_swap_dirs */ |
549 | Debug::log_stderr = 1; | |
62e76326 | 550 | opt_create_swap_dirs = 1; |
62e76326 | 551 | break; |
552 | ||
63be0a78 | 553 | case 'h': |
554 | ||
62e76326 | 555 | case '?': |
556 | ||
557 | default: | |
63be0a78 | 558 | /** \par h,?, or unknown |
559 | * \copydoc usage() */ | |
62e76326 | 560 | usage(); |
561 | ||
562 | break; | |
563 | } | |
9b7292ce | 564 | |
090089c4 | 565 | } |
4d64d74a | 566 | } |
090089c4 | 567 | |
7a2f978b | 568 | /* ARGSUSED */ |
b293c4d8 | 569 | void |
9b7292ce | 570 | rotate_logs(int sig) |
571 | { | |
5cd39a10 | 572 | do_rotate = 1; |
a2c48c98 | 573 | RotateSignal = sig; |
a50bfe93 | 574 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 575 | #if !HAVE_SIGACTION |
62e76326 | 576 | |
30a4f2a8 | 577 | signal(sig, rotate_logs); |
578 | #endif | |
a50bfe93 | 579 | #endif |
30a4f2a8 | 580 | } |
581 | ||
7a2f978b | 582 | /* ARGSUSED */ |
b293c4d8 | 583 | void |
9b7292ce | 584 | reconfigure(int sig) |
585 | { | |
5cd39a10 | 586 | do_reconfigure = 1; |
a2c48c98 | 587 | ReconfigureSignal = sig; |
a50bfe93 | 588 | #ifndef _SQUID_MSWIN_ |
30a4f2a8 | 589 | #if !HAVE_SIGACTION |
62e76326 | 590 | |
30a4f2a8 | 591 | signal(sig, reconfigure); |
592 | #endif | |
a50bfe93 | 593 | #endif |
30a4f2a8 | 594 | } |
595 | ||
b8d8561b | 596 | void |
9b7292ce | 597 | shut_down(int sig) |
598 | { | |
2681d383 | 599 | do_shutdown = sig == SIGINT ? -1 : 1; |
a2c48c98 | 600 | ShutdownSignal = sig; |
ae1feb30 | 601 | #ifdef SIGTTIN |
602 | ||
603 | if (SIGTTIN == sig) | |
604 | shutdown_status = 1; | |
605 | ||
606 | #endif | |
a50bfe93 | 607 | #ifndef _SQUID_MSWIN_ |
a67d2b2e | 608 | #if KILL_PARENT_OPT |
62e76326 | 609 | |
5cd39a10 | 610 | if (getppid() > 1) { |
d4fe2ba0 | 611 | debugs(1, 1, "Killing master process, pid " << getppid()); |
62e76326 | 612 | |
613 | if (kill(getppid(), sig) < 0) | |
36584579 | 614 | debugs(1, 1, "kill " << getppid() << ": " << xstrerror()); |
88738790 | 615 | } |
62e76326 | 616 | |
0f658b5b | 617 | #endif /* KILL_PARENT_OPT */ |
6e40f263 | 618 | #if SA_RESETHAND == 0 |
619 | signal(SIGTERM, SIG_DFL); | |
62e76326 | 620 | |
6e40f263 | 621 | signal(SIGINT, SIG_DFL); |
62e76326 | 622 | |
a50bfe93 | 623 | #endif |
6e40f263 | 624 | #endif |
30a4f2a8 | 625 | } |
626 | ||
24382924 | 627 | static void |
9b7292ce | 628 | serverConnectionsOpen(void) |
629 | { | |
7de94c8c AR |
630 | if (IamPrimaryProcess()) { |
631 | #if USE_WCCP | |
632 | ||
5667a628 | 633 | wccpConnectionOpen(); |
7de94c8c | 634 | #endif |
45aae82b | 635 | |
7de94c8c AR |
636 | #if USE_WCCPv2 |
637 | ||
5667a628 | 638 | wccp2ConnectionOpen(); |
7de94c8c AR |
639 | #endif |
640 | } | |
641 | // Coordinator does not start proxying services | |
642 | if (!IamCoordinatorProcess()) { | |
5667a628 AR |
643 | clientOpenListenSockets(); |
644 | icpConnectionsOpen(); | |
ace287ee | 645 | #if USE_HTCP |
62e76326 | 646 | |
5667a628 | 647 | htcpInit(); |
ace287ee | 648 | #endif |
a67d2b2e | 649 | #if SQUID_SNMP |
62e76326 | 650 | |
5667a628 | 651 | snmpConnectionOpen(); |
320e9f36 | 652 | #endif |
0b0cfcf2 | 653 | |
5667a628 AR |
654 | clientdbInit(); |
655 | icmpEngine.Open(); | |
656 | netdbInit(); | |
657 | asnInit(); | |
658 | ACL::Initialize(); | |
659 | peerSelectInit(); | |
660 | ||
661 | carpInit(); | |
662 | peerUserHashInit(); | |
663 | peerSourceHashInit(); | |
7de94c8c | 664 | } |
5f3f8d0e | 665 | } |
666 | ||
d71e4674 | 667 | static void |
9b7292ce | 668 | serverConnectionsClose(void) |
669 | { | |
0a5a8601 | 670 | assert(shutting_down || reconfiguring); |
7de94c8c AR |
671 | |
672 | if (IamPrimaryProcess()) { | |
673 | #if USE_WCCP | |
674 | ||
5667a628 | 675 | wccpConnectionClose(); |
7de94c8c AR |
676 | #endif |
677 | #if USE_WCCPv2 | |
678 | ||
5667a628 | 679 | wccp2ConnectionClose(); |
7de94c8c AR |
680 | #endif |
681 | } | |
682 | if (!IamCoordinatorProcess()) { | |
5667a628 AR |
683 | clientHttpConnectionsClose(); |
684 | icpConnectionShutdown(); | |
72549e05 | 685 | #if USE_HTCP |
62e76326 | 686 | |
5667a628 | 687 | htcpSocketShutdown(); |
72549e05 | 688 | #endif |
62e76326 | 689 | |
5667a628 | 690 | icmpEngine.Close(); |
a67d2b2e | 691 | #if SQUID_SNMP |
62e76326 | 692 | |
5667a628 | 693 | snmpConnectionShutdown(); |
320e9f36 | 694 | #endif |
62e76326 | 695 | |
5667a628 | 696 | asnFreeMemory(); |
7de94c8c | 697 | } |
5f3f8d0e | 698 | } |
699 | ||
b8d8561b | 700 | static void |
d71e4674 | 701 | mainReconfigureStart(void) |
9b7292ce | 702 | { |
bf8fe701 | 703 | debugs(1, 1, "Reconfiguring Squid Cache (version " << version_string << ")..."); |
5cd39a10 | 704 | reconfiguring = 1; |
d71e4674 AR |
705 | |
706 | // Initiate asynchronous closing sequence | |
15df8349 | 707 | serverConnectionsClose(); |
17e6c0a1 | 708 | icpConnectionClose(); |
72549e05 | 709 | #if USE_HTCP |
62e76326 | 710 | |
72549e05 | 711 | htcpSocketClose(); |
712 | #endif | |
59ad6d31 | 713 | #if SQUID_SNMP |
62e76326 | 714 | |
17e6c0a1 | 715 | snmpConnectionClose(); |
320e9f36 | 716 | #endif |
3c573763 | 717 | #if USE_DNSSERVERS |
62e76326 | 718 | |
74addf6c | 719 | dnsShutdown(); |
3c573763 | 720 | #else |
62e76326 | 721 | |
7b724b86 | 722 | idnsShutdown(); |
eb824054 | 723 | #endif |
62e76326 | 724 | |
74addf6c | 725 | redirectShutdown(); |
0bcb6908 | 726 | authenticateReset(); |
d9572179 | 727 | externalAclShutdown(); |
2db68ce5 | 728 | storeDirCloseSwapLogs(); |
2e923080 | 729 | storeLogClose(); |
730 | accessLogClose(); | |
3ff65596 AR |
731 | #if ICAP_CLIENT |
732 | icapLogClose(); | |
733 | #endif | |
2e923080 | 734 | useragentLogClose(); |
735 | refererCloseLog(); | |
d71e4674 AR |
736 | |
737 | eventAdd("mainReconfigureFinish", &mainReconfigureFinish, NULL, 0, 1, | |
26ac0430 | 738 | false); |
d71e4674 AR |
739 | } |
740 | ||
741 | static void | |
26ac0430 AJ |
742 | mainReconfigureFinish(void *) |
743 | { | |
d71e4674 AR |
744 | debugs(1, 3, "finishing reconfiguring"); |
745 | ||
c68e9c6b | 746 | errorClean(); |
3aa4adbc | 747 | enter_suid(); /* root to read config file */ |
936b23cd AJ |
748 | |
749 | // we may have disabled the need for PURGE | |
e1381638 | 750 | if (Config2.onoff.enable_purge) |
936b23cd AJ |
751 | Config2.onoff.enable_purge = 2; |
752 | ||
18631119 | 753 | // parse the config returns a count of errors encountered. |
13aeac35 | 754 | const int oldWorkers = Config.workers; |
18631119 AJ |
755 | if ( parseConfigFile(ConfigFile) != 0) { |
756 | // for now any errors are a fatal condition... | |
757 | self_destruct(); | |
758 | } | |
13aeac35 AR |
759 | if (oldWorkers != Config.workers) { |
760 | debugs(1, DBG_CRITICAL, "WARNING: Changing 'workers' (from " << | |
5667a628 AR |
761 | oldWorkers << " to " << Config.workers << |
762 | ") is not supported and ignored"); | |
13aeac35 | 763 | Config.workers = oldWorkers; |
a2c48c98 | 764 | } |
936b23cd | 765 | |
c642c141 | 766 | setUmask(Config.umask); |
97244680 | 767 | Mem::Report(); |
3aa4adbc | 768 | setEffectiveUser(); |
62493678 | 769 | _db_init(Debug::cache_log, Debug::debugOptions); |
429fdbec | 770 | ipcache_restart(); /* clear stuck entries */ |
771 | fqdncache_restart(); /* sigh, fqdncache too */ | |
0e70aa1e | 772 | parseEtcHosts(); |
53ad48e6 | 773 | errorInitialize(); /* reload error pages */ |
2e923080 | 774 | accessLogInit(); |
76fc7e57 AJ |
775 | |
776 | #if USE_LOADABLE_MODULES | |
777 | LoadableModulesConfigure(Config.loadable_module_names); | |
778 | #endif | |
779 | ||
780 | #if USE_ADAPTATION | |
781 | bool enableAdaptation = false; | |
782 | #if ICAP_CLIENT | |
783 | Adaptation::Icap::TheConfig.finalize(); | |
784 | enableAdaptation = Adaptation::Icap::TheConfig.onoff || enableAdaptation; | |
785 | #endif | |
786 | #if USE_ECAP | |
787 | Adaptation::Ecap::TheConfig.finalize(); // must be after we load modules | |
788 | enableAdaptation = Adaptation::Ecap::TheConfig.onoff || enableAdaptation; | |
789 | #endif | |
790 | Adaptation::Config::Finalize(enableAdaptation); | |
791 | #endif | |
d090e020 | 792 | |
3ff65596 AR |
793 | #if ICAP_CLIENT |
794 | icapLogOpen(); | |
795 | #endif | |
2e923080 | 796 | storeLogOpen(); |
797 | useragentOpenLog(); | |
798 | refererOpenLog(); | |
3c573763 | 799 | #if USE_DNSSERVERS |
62e76326 | 800 | |
74addf6c | 801 | dnsInit(); |
3c573763 | 802 | #else |
62e76326 | 803 | |
7b724b86 | 804 | idnsInit(); |
eb824054 | 805 | #endif |
62e76326 | 806 | |
74addf6c | 807 | redirectInit(); |
5817ee13 | 808 | authenticateInit(&Auth::TheConfig); |
d9572179 | 809 | externalAclInit(); |
7de94c8c AR |
810 | |
811 | if (IamPrimaryProcess()) { | |
1f38f50a | 812 | #if USE_WCCP |
62e76326 | 813 | |
5667a628 | 814 | wccpInit(); |
1f38f50a | 815 | #endif |
0b0cfcf2 | 816 | #if USE_WCCPv2 |
817 | ||
5667a628 | 818 | wccp2Init(); |
0b0cfcf2 | 819 | #endif |
7de94c8c | 820 | } |
62e76326 | 821 | |
0ffd22bc | 822 | serverConnectionsOpen(); |
9c2e9b50 | 823 | |
3ee2b4f8 | 824 | neighbors_init(); |
9c2e9b50 | 825 | |
2db68ce5 | 826 | storeDirOpenSwapLogs(); |
9c2e9b50 | 827 | |
9c021a38 | 828 | mimeInit(Config.mimeTablePathname); |
9c2e9b50 | 829 | |
926375e6 | 830 | if (Config.onoff.announce) { |
831 | if (!eventFind(start_announce, NULL)) | |
832 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
833 | } else { | |
834 | if (eventFind(start_announce, NULL)) | |
835 | eventDelete(start_announce, NULL); | |
836 | } | |
837 | ||
b8890359 | 838 | writePidFile(); /* write PID file */ |
9c2e9b50 | 839 | |
bf8fe701 | 840 | debugs(1, 1, "Ready to serve requests."); |
9c2e9b50 | 841 | |
5cd39a10 | 842 | reconfiguring = 0; |
843 | } | |
844 | ||
845 | static void | |
9b7292ce | 846 | mainRotate(void) |
847 | { | |
cc192b50 | 848 | icmpEngine.Close(); |
3c573763 | 849 | #if USE_DNSSERVERS |
e40aa8da | 850 | dnsShutdown(); |
3c573763 | 851 | #endif |
e40aa8da | 852 | redirectShutdown(); |
0bcb6908 | 853 | authenticateRotate(); |
d9572179 | 854 | externalAclShutdown(); |
0a6dd8fb | 855 | |
5cd39a10 | 856 | _db_rotate_log(); /* cache.log */ |
857 | storeDirWriteCleanLogs(1); | |
858 | storeLogRotate(); /* store.log */ | |
859 | accessLogRotate(); /* access.log */ | |
860 | useragentRotateLog(); /* useragent.log */ | |
fd2c5549 | 861 | refererRotateLog(); /* referer.log */ |
3ff65596 AR |
862 | #if ICAP_CLIENT |
863 | icapLogRotate(); /*icap.log*/ | |
864 | #endif | |
225644d7 | 865 | #if WIP_FWD_LOG |
866 | fwdLogRotate(); | |
867 | #endif | |
62e76326 | 868 | |
cc192b50 | 869 | icmpEngine.Open(); |
3c573763 | 870 | #if USE_DNSSERVERS |
e40aa8da | 871 | dnsInit(); |
3c573763 | 872 | #endif |
e40aa8da | 873 | redirectInit(); |
5817ee13 | 874 | authenticateInit(&Auth::TheConfig); |
d9572179 | 875 | externalAclInit(); |
5f3f8d0e | 876 | } |
877 | ||
067bea91 | 878 | static void |
9b7292ce | 879 | setEffectiveUser(void) |
880 | { | |
fc68f6b1 | 881 | keepCapabilities(); |
85407535 | 882 | leave_suid(); /* Run as non privilegied user */ |
cd377065 | 883 | #ifdef _SQUID_OS2_ |
62e76326 | 884 | |
cd377065 | 885 | return; |
886 | #endif | |
62e76326 | 887 | |
85407535 | 888 | if (geteuid() == 0) { |
bf8fe701 | 889 | debugs(0, 0, "Squid is not safe to run as root! If you must"); |
890 | debugs(0, 0, "start Squid as root, then you must configure"); | |
891 | debugs(0, 0, "it to run as a non-priveledged user with the"); | |
892 | debugs(0, 0, "'cache_effective_user' option in the config file."); | |
62e76326 | 893 | fatal("Don't run Squid as root, set 'cache_effective_user'!"); |
85407535 | 894 | } |
895 | } | |
896 | ||
b6a2f15e | 897 | static void |
9b7292ce | 898 | mainSetCwd(void) |
899 | { | |
4a504376 | 900 | char pathbuf[MAXPATHLEN]; |
62e76326 | 901 | |
b6a2f15e | 902 | if (Config.coredump_dir) { |
62e76326 | 903 | if (0 == strcmp("none", Config.coredump_dir)) { |
904 | (void) 0; | |
905 | } else if (chdir(Config.coredump_dir) == 0) { | |
bf8fe701 | 906 | debugs(0, 1, "Set Current Directory to " << Config.coredump_dir); |
62e76326 | 907 | return; |
908 | } else { | |
bf8fe701 | 909 | debugs(50, 0, "chdir: " << Config.coredump_dir << ": " << xstrerror()); |
62e76326 | 910 | } |
b6a2f15e | 911 | } |
62e76326 | 912 | |
02e8115e | 913 | /* If we don't have coredump_dir or couldn't cd there, report current dir */ |
4a504376 | 914 | if (getcwd(pathbuf, MAXPATHLEN)) { |
bf8fe701 | 915 | debugs(0, 1, "Current Directory is " << pathbuf); |
4a504376 | 916 | } else { |
bf8fe701 | 917 | debugs(50, 0, "WARNING: Can't find current directory, getcwd: " << xstrerror()); |
4a504376 | 918 | } |
b6a2f15e | 919 | } |
920 | ||
b67e2c8c | 921 | #if DELAY_POOLS |
922 | #include "DelayPools.h" | |
923 | #endif | |
924 | ||
b8d8561b | 925 | static void |
9b7292ce | 926 | mainInitialize(void) |
927 | { | |
efd900cb | 928 | /* chroot if configured to run inside chroot */ |
62e76326 | 929 | |
64b0a10d | 930 | if (Config.chroot_dir && (chroot(Config.chroot_dir) != 0 || chdir("/") != 0)) { |
62e76326 | 931 | fatal("failed to chroot"); |
efd900cb | 932 | } |
62e76326 | 933 | |
1758c627 | 934 | if (opt_catch_signals) { |
62e76326 | 935 | squid_signal(SIGSEGV, death, SA_NODEFER | SA_RESETHAND); |
936 | squid_signal(SIGBUS, death, SA_NODEFER | SA_RESETHAND); | |
44f99671 | 937 | } |
62e76326 | 938 | |
30a4f2a8 | 939 | squid_signal(SIGPIPE, SIG_IGN, SA_RESTART); |
940 | squid_signal(SIGCHLD, sig_child, SA_NODEFER | SA_RESTART); | |
44f99671 | 941 | |
85407535 | 942 | setEffectiveUser(); |
62e76326 | 943 | |
30a4f2a8 | 944 | if (icpPortNumOverride != 1) |
62e76326 | 945 | Config.Port.icp = (u_short) icpPortNumOverride; |
30a4f2a8 | 946 | |
62493678 | 947 | _db_init(Debug::cache_log, Debug::debugOptions); |
62e76326 | 948 | |
62493678 | 949 | fd_open(fileno(debug_log), FD_LOG, Debug::cache_log); |
62e76326 | 950 | |
71a17702 | 951 | #if MEM_GEN_TRACE |
62e76326 | 952 | |
71a17702 | 953 | log_trace_init("/tmp/squid.alloc"); |
62e76326 | 954 | |
71a17702 | 955 | #endif |
62e76326 | 956 | |
bf8fe701 | 957 | debugs(1, 0, "Starting Squid Cache version " << version_string << " for " << CONFIG_HOST_TYPE << "..."); |
62e76326 | 958 | |
ec4daaa5 | 959 | #ifdef _SQUID_WIN32_ |
b293c4d8 | 960 | |
961 | if (WIN32_run_mode == _WIN_SQUID_RUN_MODE_SERVICE) { | |
bf8fe701 | 962 | debugs(1, 0, "Running as " << WIN32_Service_name << " Windows System Service on " << WIN32_OS_string); |
963 | debugs(1, 0, "Service command line is: " << WIN32_Service_Command_Line); | |
b293c4d8 | 964 | } else |
bf8fe701 | 965 | debugs(1, 0, "Running on " << WIN32_OS_string); |
b293c4d8 | 966 | |
967 | #endif | |
968 | ||
36584579 | 969 | debugs(1, 1, "Process ID " << getpid()); |
f3f0f563 | 970 | setSystemLimits(); |
bf8fe701 | 971 | debugs(1, 1, "With " << Squid_MaxFD << " file descriptors available"); |
5f3f8d0e | 972 | |
6c1962dd | 973 | #ifdef _SQUID_MSWIN_ |
974 | ||
bf8fe701 | 975 | debugs(1, 1, "With " << _getmaxstdio() << " CRT stdio descriptors available"); |
6c1962dd | 976 | |
977 | if (WIN32_Socks_initialized) | |
bf8fe701 | 978 | debugs(1, 1, "Windows sockets initialized"); |
6c1962dd | 979 | |
babd1fd5 | 980 | if (WIN32_OS_version > _WIN_OS_WINNT) { |
26ac0430 | 981 | WIN32_IpAddrChangeMonitorInit(); |
babd1fd5 | 982 | } |
983 | ||
6c1962dd | 984 | #endif |
985 | ||
9f75c559 | 986 | if (!configured_once) |
62e76326 | 987 | disk_init(); /* disk_init must go before ipcache_init() */ |
988 | ||
5f3f8d0e | 989 | ipcache_init(); |
62e76326 | 990 | |
f88bb09c | 991 | fqdncache_init(); |
62e76326 | 992 | |
0e70aa1e | 993 | parseEtcHosts(); |
62e76326 | 994 | |
3c573763 | 995 | #if USE_DNSSERVERS |
62e76326 | 996 | |
74addf6c | 997 | dnsInit(); |
62e76326 | 998 | |
3c573763 | 999 | #else |
62e76326 | 1000 | |
7b724b86 | 1001 | idnsInit(); |
62e76326 | 1002 | |
eb824054 | 1003 | #endif |
62e76326 | 1004 | |
74addf6c | 1005 | redirectInit(); |
62e76326 | 1006 | |
5817ee13 | 1007 | authenticateInit(&Auth::TheConfig); |
62e76326 | 1008 | |
d9572179 | 1009 | externalAclInit(); |
62e76326 | 1010 | |
b012353a | 1011 | useragentOpenLog(); |
62e76326 | 1012 | |
fd2c5549 | 1013 | refererOpenLog(); |
62e76326 | 1014 | |
2ac76861 | 1015 | httpHeaderInitModule(); /* must go before any header processing (e.g. the one in errorInitialize) */ |
62e76326 | 1016 | |
2246b732 | 1017 | httpReplyInitModule(); /* must go before accepting replies */ |
62e76326 | 1018 | |
9b312a19 | 1019 | errorInitialize(); |
62e76326 | 1020 | |
7a2f978b | 1021 | accessLogInit(); |
62e76326 | 1022 | |
e1381638 | 1023 | #if ICAP_CLIENT |
3ff65596 AR |
1024 | icapLogOpen(); |
1025 | #endif | |
1026 | ||
3898f57f | 1027 | #if USE_IDENT |
4daaf3cb | 1028 | Ident::Init(); |
3898f57f | 1029 | #endif |
4daaf3cb | 1030 | |
59ad6d31 | 1031 | #if SQUID_SNMP |
62e76326 | 1032 | |
5e14bf6d | 1033 | snmpInit(); |
62e76326 | 1034 | |
5e14bf6d | 1035 | #endif |
30a4f2a8 | 1036 | #if MALLOC_DBG |
62e76326 | 1037 | |
5f3f8d0e | 1038 | malloc_debug(0, malloc_debug_level); |
62e76326 | 1039 | |
5f3f8d0e | 1040 | #endif |
1041 | ||
dbe4fd8e | 1042 | if (!configured_once) { |
a3d0a19d | 1043 | #if USE_UNLINKD |
62e76326 | 1044 | unlinkdInit(); |
1045 | #endif | |
1046 | ||
1047 | urlInitialize(); | |
62e76326 | 1048 | statInit(); |
1049 | storeInit(); | |
1050 | mainSetCwd(); | |
1051 | /* after this point we want to see the mallinfo() output */ | |
1052 | do_mallinfo = 1; | |
1053 | mimeInit(Config.mimeTablePathname); | |
62e76326 | 1054 | refreshInit(); |
0d7e5d78 | 1055 | #if DELAY_POOLS |
62e76326 | 1056 | |
1057 | DelayPools::Init(); | |
0d7e5d78 | 1058 | #endif |
62e76326 | 1059 | |
b6b6f466 | 1060 | FwdState::initModule(); |
62ee09ca | 1061 | /* register the modules in the cache manager menus */ |
62ee09ca | 1062 | |
a08f1b5a | 1063 | cbdataRegisterWithCacheManager(); |
62ee09ca | 1064 | /* These use separate calls so that the comm loops can eventually |
1065 | * coexist. | |
1066 | */ | |
62ee09ca | 1067 | |
15b3c0d7 | 1068 | eventInit(); |
610ee341 | 1069 | |
26ac0430 | 1070 | // TODO: pconn is a good candidate for new-style registration |
6852be71 | 1071 | // PconnModule::GetInstance()->registerWithCacheManager(); |
26ac0430 | 1072 | // moved to PconnModule::PconnModule() |
5f3f8d0e | 1073 | } |
62e76326 | 1074 | |
7de94c8c | 1075 | if (IamPrimaryProcess()) { |
1f38f50a | 1076 | #if USE_WCCP |
5667a628 | 1077 | wccpInit(); |
62e76326 | 1078 | |
0b0cfcf2 | 1079 | #endif |
1080 | #if USE_WCCPv2 | |
1081 | ||
5667a628 | 1082 | wccp2Init(); |
0b0cfcf2 | 1083 | |
1f38f50a | 1084 | #endif |
7de94c8c | 1085 | } |
62e76326 | 1086 | |
2285407f | 1087 | serverConnectionsOpen(); |
62e76326 | 1088 | |
3ee2b4f8 | 1089 | neighbors_init(); |
fc68f6b1 | 1090 | |
5f5e883f | 1091 | // neighborsRegisterWithCacheManager(); //moved to neighbors_init() |
62e76326 | 1092 | |
efd900cb | 1093 | if (Config.chroot_dir) |
62e76326 | 1094 | no_suid(); |
1095 | ||
dbe4fd8e | 1096 | if (!configured_once) |
62e76326 | 1097 | writePidFile(); /* write PID file */ |
0a5b9b32 | 1098 | |
7e7a0442 | 1099 | #ifdef _SQUID_LINUX_THREADS_ |
62e76326 | 1100 | |
e3175d1f | 1101 | squid_signal(SIGQUIT, rotate_logs, SA_RESTART); |
62e76326 | 1102 | |
e3175d1f | 1103 | squid_signal(SIGTRAP, sigusr2_handle, SA_RESTART); |
62e76326 | 1104 | |
e3175d1f | 1105 | #else |
62e76326 | 1106 | |
30a4f2a8 | 1107 | squid_signal(SIGUSR1, rotate_logs, SA_RESTART); |
62e76326 | 1108 | |
30a4f2a8 | 1109 | squid_signal(SIGUSR2, sigusr2_handle, SA_RESTART); |
62e76326 | 1110 | |
9fc0b4b8 | 1111 | #endif |
62e76326 | 1112 | |
30a4f2a8 | 1113 | squid_signal(SIGHUP, reconfigure, SA_RESTART); |
62e76326 | 1114 | |
30a4f2a8 | 1115 | squid_signal(SIGTERM, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1116 | |
30a4f2a8 | 1117 | squid_signal(SIGINT, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); |
62e76326 | 1118 | |
ae1feb30 | 1119 | #ifdef SIGTTIN |
1120 | ||
1121 | squid_signal(SIGTTIN, shut_down, SA_NODEFER | SA_RESETHAND | SA_RESTART); | |
1122 | ||
1123 | #endif | |
1124 | ||
58a39dc9 | 1125 | memCheckInit(); |
62e76326 | 1126 | |
57afc994 AR |
1127 | #if USE_LOADABLE_MODULES |
1128 | LoadableModulesConfigure(Config.loadable_module_names); | |
1129 | #endif | |
1130 | ||
8f361c50 AR |
1131 | #if USE_ADAPTATION |
1132 | bool enableAdaptation = false; | |
1133 | ||
1134 | // We can remove this dependency on specific adaptation mechanisms | |
1135 | // if we create a generic Registry of such mechanisms. Should we? | |
b958cb0f | 1136 | #if ICAP_CLIENT |
26cc52cb AR |
1137 | Adaptation::Icap::TheConfig.finalize(); |
1138 | enableAdaptation = Adaptation::Icap::TheConfig.onoff || enableAdaptation; | |
6e5db507 AR |
1139 | #endif |
1140 | #if USE_ECAP | |
574b508c AR |
1141 | Adaptation::Ecap::TheConfig.finalize(); // must be after we load modules |
1142 | enableAdaptation = Adaptation::Ecap::TheConfig.onoff || enableAdaptation; | |
b958cb0f | 1143 | #endif |
8f361c50 AR |
1144 | // must be the last adaptation-related finalize |
1145 | Adaptation::Config::Finalize(enableAdaptation); | |
b958cb0f AR |
1146 | #endif |
1147 | ||
79039294 AR |
1148 | #if USE_SQUID_ESI |
1149 | Esi::Init(); | |
1150 | #endif | |
b958cb0f | 1151 | |
bf8fe701 | 1152 | debugs(1, 1, "Ready to serve requests."); |
62e76326 | 1153 | |
dbe4fd8e | 1154 | if (!configured_once) { |
c8f4eac4 | 1155 | eventAdd("storeMaintain", Store::Maintain, NULL, 1.0, 1); |
62e76326 | 1156 | |
1157 | if (Config.onoff.announce) | |
1158 | eventAdd("start_announce", start_announce, NULL, 3600.0, 1); | |
1159 | ||
1160 | eventAdd("ipcache_purgelru", ipcache_purgelru, NULL, 10.0, 1); | |
1161 | ||
1162 | eventAdd("fqdncache_purgelru", fqdncache_purgelru, NULL, 15.0, 1); | |
1163 | ||
88bfe092 | 1164 | #if USE_XPROF_STATS |
62e76326 | 1165 | |
1166 | eventAdd("cpuProfiling", xprof_event, NULL, 1.0, 1); | |
1167 | ||
88bfe092 | 1168 | #endif |
62e76326 | 1169 | |
1170 | eventAdd("memPoolCleanIdlePools", Mem::CleanIdlePools, NULL, 15.0, 1); | |
4d7add01 | 1171 | } |
62e76326 | 1172 | |
dbe4fd8e | 1173 | configured_once = 1; |
4d64d74a | 1174 | } |
1175 | ||
c842329d | 1176 | /// unsafe main routine -- may throw |
f3f3e961 | 1177 | int SquidMain(int argc, char **argv); |
c842329d | 1178 | /// unsafe main routine wrapper to catch exceptions |
6e5db507 AR |
1179 | static int SquidMainSafe(int argc, char **argv); |
1180 | ||
6c1962dd | 1181 | #if USE_WIN32_SERVICE |
1182 | /* When USE_WIN32_SERVICE is defined, the main function is placed in win32.cc */ | |
1183 | extern "C" void WINAPI | |
e1381638 | 1184 | SquidWinSvcMain(int argc, char **argv) |
18631119 AJ |
1185 | { |
1186 | SquidMainSafe(argc, argv); | |
1187 | } | |
6c1962dd | 1188 | #else |
b8d8561b | 1189 | int |
1190 | main(int argc, char **argv) | |
6e5db507 | 1191 | { |
18631119 | 1192 | return SquidMainSafe(argc, argv); |
6e5db507 | 1193 | } |
18631119 | 1194 | #endif |
6e5db507 AR |
1195 | |
1196 | static int | |
1197 | SquidMainSafe(int argc, char **argv) | |
1198 | { | |
1199 | try { | |
1200 | return SquidMain(argc, argv); | |
26ac0430 | 1201 | } catch (const std::exception &e) { |
bba7c3d0 | 1202 | std::cerr << "dying from an unhandled exception: " << e.what() << std::endl; |
26ac0430 AJ |
1203 | throw; |
1204 | } catch (...) { | |
bba7c3d0 | 1205 | std::cerr << "dying from an unhandled exception." << std::endl; |
26ac0430 AJ |
1206 | throw; |
1207 | } | |
1208 | return -1; // not reached | |
6e5db507 AR |
1209 | } |
1210 | ||
d4a3e179 AR |
1211 | /// computes name and ID for the current kid process |
1212 | static void | |
1213 | ConfigureCurrentKid(const char *processName) | |
1214 | { | |
5667a628 | 1215 | // kids are marked with parenthesis around their process names |
d4a3e179 AR |
1216 | if (processName && processName[0] == '(') { |
1217 | if (const char *idStart = strrchr(processName, '-')) { | |
1218 | KidIdentifier = atoi(idStart + 1); | |
9de6c973 AR |
1219 | const size_t nameLen = idStart - (processName + 1); |
1220 | assert(nameLen < sizeof(TheKidName)); | |
1221 | xstrncpy(TheKidName, processName + 1, nameLen + 1); | |
d4a3e179 | 1222 | } |
2664c457 | 1223 | } else { |
9de6c973 | 1224 | xstrncpy(TheKidName, APP_SHORTNAME, sizeof(TheKidName)); |
2664c457 | 1225 | KidIdentifier = 0; |
d4a3e179 | 1226 | } |
d4a3e179 AR |
1227 | } |
1228 | ||
f3f3e961 | 1229 | int |
6e5db507 | 1230 | SquidMain(int argc, char **argv) |
9b7292ce | 1231 | { |
d4a3e179 | 1232 | ConfigureCurrentKid(argv[0]); |
007d775d | 1233 | |
a0aa9e74 | 1234 | #ifdef _SQUID_WIN32_ |
1235 | ||
1236 | int WIN32_init_err; | |
1237 | #endif | |
4d64d74a | 1238 | |
a4ba1105 | 1239 | #if HAVE_SBRK |
62e76326 | 1240 | |
9b7292ce | 1241 | sbrk_start = sbrk(0); |
a4ba1105 | 1242 | #endif |
1243 | ||
fb6a61d1 | 1244 | Debug::parseOptions(NULL); |
9b7292ce | 1245 | debug_log = stderr; |
62e76326 | 1246 | |
b9269882 | 1247 | #if defined(SQUID_MAXFD_LIMIT) |
1248 | ||
1249 | if (SQUID_MAXFD_LIMIT < Squid_MaxFD) | |
1250 | Squid_MaxFD = SQUID_MAXFD_LIMIT; | |
1251 | ||
1252 | #endif | |
399e85ea | 1253 | |
ec4daaa5 | 1254 | #ifdef _SQUID_WIN32_ |
6c1962dd | 1255 | |
a0aa9e74 | 1256 | if ((WIN32_init_err = WIN32_Subsystem_Init(&argc, &argv))) |
1257 | return WIN32_init_err; | |
62e76326 | 1258 | |
0e6d05ef | 1259 | #endif |
1260 | ||
9b7292ce | 1261 | /* call mallopt() before anything else */ |
0b29fe44 | 1262 | #if HAVE_MALLOPT |
7328e889 | 1263 | #ifdef M_GRAIN |
9b7292ce | 1264 | /* Round up all sizes to a multiple of this */ |
1265 | mallopt(M_GRAIN, 16); | |
62e76326 | 1266 | |
7328e889 | 1267 | #endif |
1268 | #ifdef M_MXFAST | |
9b7292ce | 1269 | /* biggest size that is considered a small block */ |
1270 | mallopt(M_MXFAST, 256); | |
62e76326 | 1271 | |
7328e889 | 1272 | #endif |
1273 | #ifdef M_NBLKS | |
9b7292ce | 1274 | /* allocate this many small blocks at once */ |
1275 | mallopt(M_NLBLKS, 32); | |
62e76326 | 1276 | |
7328e889 | 1277 | #endif |
1278 | #endif /* HAVE_MALLOPT */ | |
1279 | ||
9b7292ce | 1280 | squid_srandom(time(NULL)); |
4d64d74a | 1281 | |
9b7292ce | 1282 | getCurrentTime(); |
62e76326 | 1283 | |
9b7292ce | 1284 | squid_start = current_time; |
62e76326 | 1285 | |
9b7292ce | 1286 | failure_notify = fatal_dump; |
4d64d74a | 1287 | |
6c1962dd | 1288 | #if USE_WIN32_SERVICE |
1289 | ||
9b7292ce | 1290 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1291 | |
1292 | #endif | |
1293 | ||
9b7292ce | 1294 | mainParseOptions(argc, argv); |
4d64d74a | 1295 | |
9aae6be3 | 1296 | if (opt_parse_cfg_only) { |
26ac0430 | 1297 | Debug::parseOptions("ALL,1"); |
9aae6be3 | 1298 | } |
1299 | ||
6c1962dd | 1300 | #if USE_WIN32_SERVICE |
1301 | ||
26ac0430 | 1302 | if (opt_install_service) { |
9b7292ce | 1303 | WIN32_InstallService(); |
a0aa9e74 | 1304 | return 0; |
9b7292ce | 1305 | } |
6c1962dd | 1306 | |
26ac0430 | 1307 | if (opt_remove_service) { |
9b7292ce | 1308 | WIN32_RemoveService(); |
a0aa9e74 | 1309 | return 0; |
9b7292ce | 1310 | } |
6c1962dd | 1311 | |
26ac0430 | 1312 | if (opt_command_line) { |
9b7292ce | 1313 | WIN32_SetServiceCommandLine(); |
a0aa9e74 | 1314 | return 0; |
9b7292ce | 1315 | } |
6c1962dd | 1316 | |
1317 | #endif | |
1318 | ||
9b7292ce | 1319 | /* parse configuration file |
1320 | * note: in "normal" case this used to be called from mainInitialize() */ | |
1321 | { | |
1322 | int parse_err; | |
62e76326 | 1323 | |
9b7292ce | 1324 | if (!ConfigFile) |
1325 | ConfigFile = xstrdup(DefaultConfigFile); | |
62e76326 | 1326 | |
9b7292ce | 1327 | assert(!configured_once); |
62e76326 | 1328 | |
9b7292ce | 1329 | Mem::Init(); |
62e76326 | 1330 | |
9b7292ce | 1331 | storeFsInit(); /* required for config parsing */ |
62e76326 | 1332 | |
7b5b7ba8 | 1333 | /* TODO: call the FS::Clean() in shutdown to do Fs cleanups */ |
af6a12ee | 1334 | Fs::Init(); |
7b5b7ba8 | 1335 | |
b9ae18aa | 1336 | /* May not be needed for parsing, have not audited for such */ |
1337 | DiskIOModule::SetupAllModules(); | |
1338 | ||
59b2d47f | 1339 | /* Shouldn't be needed for config parsing, but have not audited for such */ |
1340 | StoreFileSystem::SetupAllFs(); | |
1341 | ||
c8f4eac4 | 1342 | /* we may want the parsing process to set this up in the future */ |
1343 | Store::Root(new StoreController); | |
1344 | ||
5817ee13 AJ |
1345 | InitAuthSchemes(); /* required for config parsing */ |
1346 | ||
055421ee AJ |
1347 | Ip::ProbeTransport(); // determine IPv4 or IPv6 capabilities before parsing. |
1348 | ||
dd9b1081 | 1349 | parse_err = parseConfigFile(ConfigFile); |
62e76326 | 1350 | |
97244680 | 1351 | Mem::Report(); |
26ac0430 | 1352 | |
18631119 | 1353 | if (opt_parse_cfg_only || parse_err > 0) |
9b7292ce | 1354 | return parse_err; |
9b7292ce | 1355 | } |
c642c141 | 1356 | setUmask(Config.umask); |
9b7292ce | 1357 | if (-1 == opt_send_signal) |
1358 | if (checkRunningPid()) | |
205d7c3b | 1359 | exit(0); |
e13ee7ad | 1360 | |
9bc73deb | 1361 | #if TEST_ACCESS |
62e76326 | 1362 | |
95564b0d | 1363 | comm_init(); |
62e76326 | 1364 | |
9b7292ce | 1365 | comm_select_init(); |
62e76326 | 1366 | |
9b7292ce | 1367 | mainInitialize(); |
62e76326 | 1368 | |
9b7292ce | 1369 | test_access(); |
62e76326 | 1370 | |
9b7292ce | 1371 | return 0; |
62e76326 | 1372 | |
9bc73deb | 1373 | #endif |
1374 | ||
9b7292ce | 1375 | /* send signal to running copy and exit */ |
26ac0430 | 1376 | if (opt_send_signal != -1) { |
9b7292ce | 1377 | /* chroot if configured to run inside chroot */ |
62e76326 | 1378 | |
a572d8be | 1379 | if (Config.chroot_dir) { |
1380 | if (chroot(Config.chroot_dir)) | |
1381 | fatal("failed to chroot"); | |
1382 | ||
1383 | no_suid(); | |
1384 | } else { | |
1385 | leave_suid(); | |
9b7292ce | 1386 | } |
62e76326 | 1387 | |
9b7292ce | 1388 | sendSignal(); |
1389 | /* NOTREACHED */ | |
1390 | } | |
62e76326 | 1391 | |
26ac0430 | 1392 | if (opt_create_swap_dirs) { |
9b7292ce | 1393 | /* chroot if configured to run inside chroot */ |
0e657244 | 1394 | |
9b7292ce | 1395 | if (Config.chroot_dir && chroot(Config.chroot_dir)) { |
1396 | fatal("failed to chroot"); | |
1397 | } | |
62e76326 | 1398 | |
9b7292ce | 1399 | setEffectiveUser(); |
bf8fe701 | 1400 | debugs(0, 0, "Creating Swap Directories"); |
c8f4eac4 | 1401 | Store::Root().create(); |
6c1962dd | 1402 | |
9b7292ce | 1403 | return 0; |
9b7292ce | 1404 | } |
62e76326 | 1405 | |
13aeac35 | 1406 | if (!opt_no_daemon && Config.workers > 0) |
9b7292ce | 1407 | watch_child(argv); |
62e76326 | 1408 | |
95564b0d | 1409 | setMaxFD(); |
1410 | ||
1411 | /* init comm module */ | |
1412 | comm_init(); | |
62e76326 | 1413 | |
9b7292ce | 1414 | comm_select_init(); |
4d64d74a | 1415 | |
26ac0430 | 1416 | if (opt_no_daemon) { |
9b7292ce | 1417 | /* we have to init fdstat here. */ |
1418 | fd_open(0, FD_LOG, "stdin"); | |
1419 | fd_open(1, FD_LOG, "stdout"); | |
1420 | fd_open(2, FD_LOG, "stderr"); | |
1421 | } | |
62e76326 | 1422 | |
6c1962dd | 1423 | #if USE_WIN32_SERVICE |
1424 | ||
9b7292ce | 1425 | WIN32_svcstatusupdate(SERVICE_START_PENDING, 10000); |
6c1962dd | 1426 | |
1427 | #endif | |
1428 | ||
9b7292ce | 1429 | mainInitialize(); |
4d64d74a | 1430 | |
6c1962dd | 1431 | #if USE_WIN32_SERVICE |
1432 | ||
9b7292ce | 1433 | WIN32_svcstatusupdate(SERVICE_RUNNING, 0); |
6c1962dd | 1434 | |
1435 | #endif | |
1436 | ||
9b7292ce | 1437 | /* main loop */ |
a553a5a3 | 1438 | EventLoop mainLoop; |
62e76326 | 1439 | |
9688b0ae | 1440 | SignalEngine signalEngine(mainLoop); |
6c1962dd | 1441 | |
9688b0ae | 1442 | mainLoop.registerEngine(&signalEngine); |
62e76326 | 1443 | |
8ff3fa2e | 1444 | /* TODO: stop requiring the singleton here */ |
1445 | mainLoop.registerEngine(EventScheduler::GetInstance()); | |
62e76326 | 1446 | |
8ff3fa2e | 1447 | StoreRootEngine store_engine; |
615f9581 | 1448 | |
8ff3fa2e | 1449 | mainLoop.registerEngine(&store_engine); |
a774fd3f | 1450 | |
8ff3fa2e | 1451 | CommSelectEngine comm_engine; |
1452 | ||
8ff3fa2e | 1453 | mainLoop.registerEngine(&comm_engine); |
1454 | ||
bef81ea5 | 1455 | mainLoop.setPrimaryEngine(&comm_engine); |
1456 | ||
8ff3fa2e | 1457 | /* use the standard time service */ |
1458 | TimeEngine time_engine; | |
1459 | ||
1460 | mainLoop.setTimeService(&time_engine); | |
1461 | ||
7de94c8c AR |
1462 | if (IamCoordinatorProcess()) |
1463 | AsyncJob::AsyncStart(Ipc::Coordinator::Instance()); | |
1464 | else if (UsingSmp() && IamWorkerProcess()) | |
1465 | AsyncJob::AsyncStart(new Ipc::Strand); | |
10cefb7b | 1466 | |
48d54e4d AJ |
1467 | /* at this point we are finished the synchronous startup. */ |
1468 | starting_up = 0; | |
1469 | ||
8ff3fa2e | 1470 | mainLoop.run(); |
1471 | ||
1472 | if (mainLoop.errcount == 10) | |
1473 | fatal_dump("Event loop exited with failure."); | |
1474 | ||
1475 | /* shutdown squid now */ | |
1476 | SquidShutdown(); | |
62e76326 | 1477 | |
9b7292ce | 1478 | /* NOTREACHED */ |
9b7292ce | 1479 | return 0; |
090089c4 | 1480 | } |
7690e8eb | 1481 | |
b8d8561b | 1482 | static void |
0673c0ba | 1483 | sendSignal(void) |
7690e8eb | 1484 | { |
ff8d0ea6 | 1485 | pid_t pid; |
fedac7e5 | 1486 | debug_log = stderr; |
258ac4d7 | 1487 | |
1488 | if (strcmp(Config.pidFilename, "none") == 0) { | |
bf8fe701 | 1489 | debugs(0, 1, "No pid_filename specified. Trusting you know what you are doing."); |
258ac4d7 | 1490 | } |
1491 | ||
fedac7e5 | 1492 | pid = readPidFile(); |
62e76326 | 1493 | |
fedac7e5 | 1494 | if (pid > 1) { |
6c1962dd | 1495 | #if USE_WIN32_SERVICE |
1496 | ||
1497 | if (opt_signal_service) { | |
1498 | WIN32_sendSignal(opt_send_signal); | |
1499 | exit(0); | |
1500 | } else | |
1501 | #ifdef _SQUID_MSWIN_ | |
1502 | { | |
7dbca7a4 | 1503 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
6c1962dd | 1504 | fprintf(stderr, "signal to Squid Service:\n"); |
1505 | fprintf(stderr, "missing -n command line switch.\n"); | |
1506 | exit(1); | |
1507 | } | |
1508 | ||
1509 | /* NOTREACHED */ | |
1510 | #endif | |
1511 | ||
1512 | #endif | |
1513 | ||
62e76326 | 1514 | if (kill(pid, opt_send_signal) && |
1515 | /* ignore permissions if just running check */ | |
1516 | !(opt_send_signal == 0 && errno == EPERM)) { | |
7dbca7a4 | 1517 | fprintf(stderr, "%s: ERROR: Could not send ", APP_SHORTNAME); |
62e76326 | 1518 | fprintf(stderr, "signal %d to process %d: %s\n", |
1519 | opt_send_signal, (int) pid, xstrerror()); | |
1520 | exit(1); | |
1521 | } | |
fedac7e5 | 1522 | } else { |
205d7c3b | 1523 | if (opt_send_signal != SIGTERM) { |
e08d498f | 1524 | fprintf(stderr, "%s: ERROR: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1525 | exit(1); |
1526 | } else { | |
e08d498f | 1527 | fprintf(stderr, "%s: No running copy\n", APP_SHORTNAME); |
205d7c3b AJ |
1528 | exit(0); |
1529 | } | |
7690e8eb | 1530 | } |
62e76326 | 1531 | |
fedac7e5 | 1532 | /* signal successfully sent */ |
1533 | exit(0); | |
1534 | } | |
f95b8144 | 1535 | |
a50bfe93 | 1536 | #ifndef _SQUID_MSWIN_ |
e18d7fdc | 1537 | /* |
1538 | * This function is run when Squid is in daemon mode, just | |
1539 | * before the parent forks and starts up the child process. | |
1540 | * It can be used for admin-specific tasks, such as notifying | |
1541 | * someone that Squid is (re)started. | |
1542 | */ | |
1543 | static void | |
1544 | mainStartScript(const char *prog) | |
1545 | { | |
ef364f64 | 1546 | char script[MAXPATHLEN]; |
e18d7fdc | 1547 | char *t; |
1548 | size_t sl = 0; | |
1549 | pid_t cpid; | |
1550 | pid_t rpid; | |
1551 | xstrncpy(script, prog, MAXPATHLEN); | |
62e76326 | 1552 | |
e18d7fdc | 1553 | if ((t = strrchr(script, '/'))) { |
62e76326 | 1554 | *(++t) = '\0'; |
1555 | sl = strlen(script); | |
e18d7fdc | 1556 | } |
62e76326 | 1557 | |
e18d7fdc | 1558 | xstrncpy(&script[sl], squid_start_script, MAXPATHLEN - sl); |
62e76326 | 1559 | |
e18d7fdc | 1560 | if ((cpid = fork()) == 0) { |
62e76326 | 1561 | /* child */ |
f75662c9 | 1562 | execl(script, squid_start_script, (char *)NULL); |
482aa790 | 1563 | _exit(-1); |
e18d7fdc | 1564 | } else { |
62e76326 | 1565 | do { |
e18d7fdc | 1566 | #ifdef _SQUID_NEXT_ |
62e76326 | 1567 | union wait status; |
007d775d | 1568 | rpid = wait4(cpid, &status, 0, NULL); |
e18d7fdc | 1569 | #else |
62e76326 | 1570 | |
1571 | int status; | |
007d775d | 1572 | rpid = waitpid(cpid, &status, 0); |
e18d7fdc | 1573 | #endif |
62e76326 | 1574 | |
1575 | } while (rpid != cpid); | |
e18d7fdc | 1576 | } |
1577 | } | |
1578 | ||
a50bfe93 | 1579 | #endif /* _SQUID_MSWIN_ */ |
1580 | ||
efd900cb | 1581 | static int |
1582 | checkRunningPid(void) | |
1583 | { | |
b81949b9 | 1584 | // master process must start alone, but its kids processes may co-exist |
7de94c8c | 1585 | if (!IamMasterProcess()) |
b81949b9 AR |
1586 | return 0; |
1587 | ||
efd900cb | 1588 | pid_t pid; |
e0077312 | 1589 | |
1590 | if (!debug_log) | |
1591 | debug_log = stderr; | |
1592 | ||
efd900cb | 1593 | pid = readPidFile(); |
62e76326 | 1594 | |
efd900cb | 1595 | if (pid < 2) |
62e76326 | 1596 | return 0; |
1597 | ||
efd900cb | 1598 | if (kill(pid, 0) < 0) |
62e76326 | 1599 | return 0; |
1600 | ||
cb7a4fcb | 1601 | debugs(0, 0, "Squid is already running! Process ID " << pid); |
62e76326 | 1602 | |
efd900cb | 1603 | return 1; |
1604 | } | |
1605 | ||
f95b8144 | 1606 | static void |
bbe199dc | 1607 | watch_child(char *argv[]) |
f95b8144 | 1608 | { |
a50bfe93 | 1609 | #ifndef _SQUID_MSWIN_ |
f95b8144 | 1610 | char *prog; |
f95b8144 | 1611 | #ifdef _SQUID_NEXT_ |
62e76326 | 1612 | |
f95b8144 | 1613 | union wait status; |
1614 | #else | |
62e76326 | 1615 | |
f95b8144 | 1616 | int status; |
1617 | #endif | |
62e76326 | 1618 | |
e3a3b845 | 1619 | pid_t pid; |
c99c5397 | 1620 | #ifdef TIOCNOTTY |
1621 | ||
54f742e7 | 1622 | int i; |
c99c5397 | 1623 | #endif |
1624 | ||
742724a4 | 1625 | int nullfd; |
62e76326 | 1626 | |
7de94c8c | 1627 | if (!IamMasterProcess()) |
62e76326 | 1628 | return; |
1629 | ||
7dbca7a4 | 1630 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1631 | |
54f742e7 | 1632 | if ((pid = fork()) < 0) |
62e76326 | 1633 | syslog(LOG_ALERT, "fork failed: %s", xstrerror()); |
54f742e7 | 1634 | else if (pid > 0) |
62e76326 | 1635 | exit(0); |
1636 | ||
54f742e7 | 1637 | if (setsid() < 0) |
62e76326 | 1638 | syslog(LOG_ALERT, "setsid failed: %s", xstrerror()); |
1639 | ||
efd900cb | 1640 | closelog(); |
62e76326 | 1641 | |
54f742e7 | 1642 | #ifdef TIOCNOTTY |
62e76326 | 1643 | |
c4aefe96 | 1644 | if ((i = open("/dev/tty", O_RDWR | O_TEXT)) >= 0) { |
62e76326 | 1645 | ioctl(i, TIOCNOTTY, NULL); |
1646 | close(i); | |
54f742e7 | 1647 | } |
62e76326 | 1648 | |
54f742e7 | 1649 | #endif |
b05490a8 | 1650 | |
7f6ffd15 | 1651 | /* |
1652 | * RBCOLLINS - if cygwin stackdumps when squid is run without | |
1653 | * -N, check the cygwin1.dll version, it needs to be AT LEAST | |
1654 | * 1.1.3. execvp had a bit overflow error in a loop.. | |
1655 | */ | |
742724a4 | 1656 | /* Connect stdio to /dev/null in daemon mode */ |
4da086c4 | 1657 | nullfd = open(_PATH_DEVNULL, O_RDWR | O_TEXT); |
62e76326 | 1658 | |
e4a1325e | 1659 | if (nullfd < 0) |
4da086c4 | 1660 | fatalf(_PATH_DEVNULL " %s\n", xstrerror()); |
e4a1325e | 1661 | |
742724a4 | 1662 | dup2(nullfd, 0); |
62e76326 | 1663 | |
62493678 | 1664 | if (Debug::log_stderr < 0) { |
62e76326 | 1665 | dup2(nullfd, 1); |
1666 | dup2(nullfd, 2); | |
742724a4 | 1667 | } |
62e76326 | 1668 | |
13aeac35 AR |
1669 | if (Config.workers > 128) { |
1670 | syslog(LOG_ALERT, "Suspiciously high workers value: %d", | |
5667a628 | 1671 | Config.workers); |
007d775d | 1672 | // but we keep going in hope that user knows best |
5667a628 | 1673 | } |
13aeac35 | 1674 | TheKids.init(Config.workers); |
007d775d AR |
1675 | |
1676 | // keep [re]starting kids until it is time to quit | |
f95b8144 | 1677 | for (;;) { |
62e76326 | 1678 | mainStartScript(argv[0]); |
1679 | ||
007d775d | 1680 | // start each kid that needs to be [re]started; once |
10cefb7b | 1681 | for (int i = TheKids.count() - 1; i >= 0; --i) { |
007d775d AR |
1682 | Kid& kid = TheKids.get(i); |
1683 | if (kid.hopeless() || kid.exitedHappy() || kid.running()) | |
1684 | continue; | |
1685 | ||
1686 | if ((pid = fork()) == 0) { | |
1687 | /* child */ | |
1688 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); | |
bc91a636 | 1689 | prog = argv[0]; |
007d775d AR |
1690 | argv[0] = const_cast<char*>(kid.name().termedBuf()); |
1691 | execvp(prog, argv); | |
1692 | syslog(LOG_ALERT, "execvp failed: %s", xstrerror()); | |
1693 | } | |
1694 | ||
1695 | kid.start(pid); | |
1696 | syslog(LOG_NOTICE, "Squid Parent: child process %d started", pid); | |
62e76326 | 1697 | } |
1698 | ||
1699 | /* parent */ | |
7dbca7a4 | 1700 | openlog(APP_SHORTNAME, LOG_PID | LOG_NDELAY | LOG_CONS, LOG_LOCAL4); |
62e76326 | 1701 | |
62e76326 | 1702 | squid_signal(SIGINT, SIG_IGN, SA_RESTART); |
1703 | ||
f95b8144 | 1704 | #ifdef _SQUID_NEXT_ |
62e76326 | 1705 | |
1706 | pid = wait3(&status, 0, NULL); | |
1707 | ||
f95b8144 | 1708 | #else |
62e76326 | 1709 | |
1710 | pid = waitpid(-1, &status, 0); | |
1711 | ||
007d775d | 1712 | #endif |
86b91dcd | 1713 | // Loop to collect all stopped kids before we go to sleep below. |
5667a628 | 1714 | do { |
007d775d AR |
1715 | Kid* kid = TheKids.find(pid); |
1716 | if (kid) { | |
1717 | kid->stop(status); | |
1718 | if (kid->calledExit()) { | |
1719 | syslog(LOG_NOTICE, | |
5667a628 AR |
1720 | "Squid Parent: child process %d exited with status %d", |
1721 | kid->getPid(), kid->exitStatus()); | |
007d775d AR |
1722 | } else if (kid->signaled()) { |
1723 | syslog(LOG_NOTICE, | |
5667a628 AR |
1724 | "Squid Parent: child process %d exited due to signal %d with status %d", |
1725 | kid->getPid(), kid->termSignal(), kid->exitStatus()); | |
007d775d AR |
1726 | } else { |
1727 | syslog(LOG_NOTICE, "Squid Parent: child process %d exited", kid->getPid()); | |
1728 | } | |
1729 | } else { | |
1730 | syslog(LOG_NOTICE, "Squid Parent: unknown child process %d exited", pid); | |
1731 | } | |
1732 | #ifdef _SQUID_NEXT_ | |
1733 | } while ((pid = wait3(&status, WNOHANG, NULL)) > 0); | |
1734 | #else | |
5667a628 AR |
1735 | } |
1736 | while ((pid = waitpid(-1, &status, WNOHANG)) > 0); | |
62e76326 | 1737 | #endif |
1738 | ||
007d775d AR |
1739 | if (TheKids.allExitedHappy()) { |
1740 | exit(0); | |
62e76326 | 1741 | } |
1742 | ||
007d775d | 1743 | if (TheKids.allHopeless()) { |
62e76326 | 1744 | syslog(LOG_ALERT, "Exiting due to repeated, frequent failures"); |
1745 | exit(1); | |
1746 | } | |
1747 | ||
007d775d AR |
1748 | if (TheKids.allSignaled(SIGKILL)) { |
1749 | exit(0); | |
1750 | } | |
06a0fbd3 | 1751 | |
007d775d AR |
1752 | if (TheKids.allSignaled(SIGINT) || TheKids.allSignaled(SIGTERM)) { |
1753 | syslog(LOG_ALERT, "Exiting due to unexpected forced shutdown"); | |
1754 | exit(1); | |
62e76326 | 1755 | } |
1756 | ||
1757 | squid_signal(SIGINT, SIG_DFL, SA_RESTART); | |
1758 | sleep(3); | |
f95b8144 | 1759 | } |
62e76326 | 1760 | |
bbe199dc | 1761 | /* NOTREACHED */ |
a50bfe93 | 1762 | #endif /* _SQUID_MSWIN_ */ |
a572d8be | 1763 | |
f95b8144 | 1764 | } |
fff6ad65 | 1765 | |
9ec1a1dc | 1766 | static void |
8ff3fa2e | 1767 | SquidShutdown() |
fff6ad65 | 1768 | { |
d71e4674 AR |
1769 | /* XXX: This function is called after the main loop has quit, which |
1770 | * means that no AsyncCalls would be called, including close handlers. | |
1771 | * TODO: We need to close/shut/free everything that needs calls before | |
1772 | * exiting the loop. | |
26ac0430 | 1773 | */ |
d71e4674 | 1774 | |
6c1962dd | 1775 | #if USE_WIN32_SERVICE |
1776 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1777 | #endif | |
1778 | ||
bf8fe701 | 1779 | debugs(1, 1, "Shutting down..."); |
95a83c22 | 1780 | #if USE_DNSSERVERS |
1781 | ||
1782 | dnsShutdown(); | |
1783 | #else | |
1784 | ||
1785 | idnsShutdown(); | |
1786 | #endif | |
1787 | ||
1788 | redirectShutdown(); | |
1789 | externalAclShutdown(); | |
d723bf6b | 1790 | icpConnectionClose(); |
1791 | #if USE_HTCP | |
62e76326 | 1792 | |
d723bf6b | 1793 | htcpSocketClose(); |
1794 | #endif | |
59ad6d31 | 1795 | #if SQUID_SNMP |
62e76326 | 1796 | |
d723bf6b | 1797 | snmpConnectionClose(); |
320e9f36 | 1798 | #endif |
eb824054 | 1799 | #if USE_WCCP |
62e76326 | 1800 | |
320e9f36 | 1801 | wccpConnectionClose(); |
d723bf6b | 1802 | #endif |
0b0cfcf2 | 1803 | #if USE_WCCPv2 |
1804 | ||
1805 | wccp2ConnectionClose(); | |
1806 | #endif | |
62e76326 | 1807 | |
fff6ad65 | 1808 | releaseServerSockets(); |
d723bf6b | 1809 | commCloseAllSockets(); |
79039294 AR |
1810 | |
1811 | #if USE_SQUID_ESI | |
1812 | Esi::Clean(); | |
1813 | #endif | |
1814 | ||
515ec4dc | 1815 | #if DELAY_POOLS |
62e76326 | 1816 | |
b67e2c8c | 1817 | DelayPools::FreePools(); |
515ec4dc | 1818 | #endif |
62e76326 | 1819 | |
0bcb6908 | 1820 | authenticateReset(); |
6c1962dd | 1821 | #if USE_WIN32_SERVICE |
1822 | ||
1823 | WIN32_svcstatusupdate(SERVICE_STOP_PENDING, 10000); | |
1824 | #endif | |
62e76326 | 1825 | |
c8f4eac4 | 1826 | Store::Root().sync(); /* Flush pending object writes/unlinks */ |
4d075ba0 | 1827 | #if USE_UNLINKD |
1828 | ||
1829 | unlinkdClose(); /* after sync/flush */ | |
1830 | #endif | |
fc68f6b1 | 1831 | |
fff6ad65 | 1832 | storeDirWriteCleanLogs(0); |
1833 | PrintRusage(); | |
1834 | dumpMallocStats(); | |
c8f4eac4 | 1835 | Store::Root().sync(); /* Flush log writes */ |
fff6ad65 | 1836 | storeLogClose(); |
1837 | accessLogClose(); | |
5b824235 | 1838 | useragentLogClose(); |
c9b99797 | 1839 | refererCloseLog(); |
225644d7 | 1840 | #if WIP_FWD_LOG |
62e76326 | 1841 | |
225644d7 | 1842 | fwdUninit(); |
1843 | #endif | |
62e76326 | 1844 | |
c8f4eac4 | 1845 | Store::Root().sync(); /* Flush log close */ |
59b2d47f | 1846 | StoreFileSystem::FreeAllFs(); |
b9ae18aa | 1847 | DiskIOModule::FreeAllModules(); |
afec404b | 1848 | #if LEAK_CHECK_MODE && 0 /* doesn't work at the moment */ |
62e76326 | 1849 | |
fff6ad65 | 1850 | configFreeMemory(); |
1851 | storeFreeMemory(); | |
33ab18e8 | 1852 | /*stmemFreeMemory(); */ |
fff6ad65 | 1853 | netdbFreeMemory(); |
1854 | ipcacheFreeMemory(); | |
1855 | fqdncacheFreeMemory(); | |
1856 | asnFreeMemory(); | |
26a369ba | 1857 | clientdbFreeMemory(); |
7021844c | 1858 | httpHeaderCleanModule(); |
d2db411c | 1859 | statFreeMemory(); |
f1fc2a8d | 1860 | eventFreeMemory(); |
c68e9c6b | 1861 | mimeFreeMemory(); |
1862 | errorClean(); | |
fff6ad65 | 1863 | #endif |
26a369ba | 1864 | #if !XMALLOC_TRACE |
62e76326 | 1865 | |
54f742e7 | 1866 | if (opt_no_daemon) { |
62e76326 | 1867 | file_close(0); |
1868 | file_close(1); | |
1869 | file_close(2); | |
54f742e7 | 1870 | } |
62e76326 | 1871 | |
33ab18e8 | 1872 | #endif |
fff6ad65 | 1873 | fdDumpOpen(); |
62e76326 | 1874 | |
236d1779 | 1875 | comm_exit(); |
62e76326 | 1876 | |
ddb43c58 | 1877 | memClean(); |
62e76326 | 1878 | |
33ab18e8 | 1879 | #if XMALLOC_TRACE |
62e76326 | 1880 | |
26a369ba | 1881 | xmalloc_find_leaks(); |
62e76326 | 1882 | |
bf8fe701 | 1883 | debugs(1, 0, "Memory used after shutdown: " << xmalloc_total); |
62e76326 | 1884 | |
33ab18e8 | 1885 | #endif |
36a97e19 | 1886 | #if MEM_GEN_TRACE |
62e76326 | 1887 | |
399e85ea | 1888 | log_trace_done(); |
62e76326 | 1889 | |
36a97e19 | 1890 | #endif |
62e76326 | 1891 | |
7de94c8c | 1892 | if (IamPrimaryProcess()) { |
a2c48c98 AR |
1893 | if (Config.pidFilename && strcmp(Config.pidFilename, "none") != 0) { |
1894 | enter_suid(); | |
1895 | safeunlink(Config.pidFilename, 0); | |
1896 | leave_suid(); | |
1897 | } | |
ab50ee9e | 1898 | } |
62e76326 | 1899 | |
bf8fe701 | 1900 | debugs(1, 1, "Squid Cache (Version " << version_string << "): Exiting normally."); |
62e76326 | 1901 | |
0cfa98cb | 1902 | /* |
1903 | * DPW 2006-10-23 | |
1904 | * We used to fclose(debug_log) here if it was set, but then | |
1905 | * we forgot to set it to NULL. That caused some coredumps | |
1906 | * because exit() ends up calling a bunch of destructors and | |
1907 | * such. So rather than forcing the debug_log to close, we'll | |
1908 | * leave it open so that those destructors can write some | |
1909 | * debugging if necessary. The file will be closed anyway when | |
1910 | * the process truly exits. | |
1911 | */ | |
62e76326 | 1912 | |
ae1feb30 | 1913 | exit(shutdown_status); |
fff6ad65 | 1914 | } |
bef81ea5 | 1915 |