blob: a20f4977be89bef0d75b9ca93791f27762faa446 [file] [log] [blame]
Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreauad90f0d2015-06-17 15:53:25 +02003 * Copyright 2000-2015 Willy Tarreau <w@1wt.eu>.
Willy Tarreaubaaee002006-06-26 02:48:02 +02004 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 *
10 * Please refer to RFC2068 or RFC2616 for informations about HTTP protocol, and
11 * RFC2965 for informations about cookies usage. More generally, the IETF HTTP
12 * Working Group's web site should be consulted for protocol related changes :
13 *
14 * http://ftp.ics.uci.edu/pub/ietf/http/
15 *
16 * Pending bugs (may be not fixed because never reproduced) :
17 * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes
18 * the proxy to terminate (no core) if the client breaks the connection during
19 * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to
20 * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be
21 * related to missing setsid() (fixed in 1.1.15)
22 * - a proxy with an invalid config will prevent the startup even if disabled.
23 *
24 * ChangeLog has moved to the CHANGELOG file.
25 *
Willy Tarreaubaaee002006-06-26 02:48:02 +020026 */
27
28#include <stdio.h>
29#include <stdlib.h>
30#include <unistd.h>
31#include <string.h>
32#include <ctype.h>
33#include <sys/time.h>
34#include <sys/types.h>
35#include <sys/socket.h>
36#include <netinet/tcp.h>
37#include <netinet/in.h>
38#include <arpa/inet.h>
39#include <netdb.h>
40#include <fcntl.h>
41#include <errno.h>
42#include <signal.h>
43#include <stdarg.h>
44#include <sys/resource.h>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010045#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020046#include <time.h>
47#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010048#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010049#ifdef USE_CPU_AFFINITY
50#define __USE_GNU
51#include <sched.h>
52#undef __USE_GNU
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020053#ifdef __FreeBSD__
54#include <sys/param.h>
55#include <sys/cpuset.h>
56#endif
Willy Tarreaufc6c0322012-11-16 16:12:27 +010057#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020058
59#ifdef DEBUG_FULL
60#include <assert.h>
61#endif
62
Willy Tarreau2dd0d472006-06-29 17:53:05 +020063#include <common/base64.h>
64#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020065#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020066#include <common/compat.h>
67#include <common/config.h>
68#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010069#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020070#include <common/memory.h>
71#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010072#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020073#include <common/regex.h>
74#include <common/standard.h>
75#include <common/time.h>
76#include <common/uri_auth.h>
77#include <common/version.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020078
79#include <types/capture.h>
80#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090081#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020082#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020083
Willy Tarreau0fc45a72007-06-17 00:36:03 +020084#include <proto/acl.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020085#include <proto/applet.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020086#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020087#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020088#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020089#include <proto/channel.h>
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +020090#include <proto/checks.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +020091#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020092#include <proto/fd.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +020093#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +010094#include <proto/hlua.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020095#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020096#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +010097#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020098#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +010099#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200100#include <proto/proxy.h>
101#include <proto/queue.h>
102#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200103#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200104#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200105#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200106#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200107#include <proto/dns.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200108
Emeric Brunfc0421f2012-09-07 17:30:07 +0200109#ifdef USE_OPENSSL
110#include <proto/ssl_sock.h>
111#endif
112
David Carlier4a026412015-06-01 13:57:22 +0200113#ifdef USE_DEVICEATLAS
114#include <import/da.h>
115#endif
116
Thomas Holmes6abded42015-05-12 16:23:58 +0100117#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +0200118#include <import/51d.h>
Thomas Holmes6abded42015-05-12 16:23:58 +0100119#endif
120
Willy Tarreaubaaee002006-06-26 02:48:02 +0200121/*********************************************************************/
122
Cyril Bonté6162c432012-11-10 19:27:47 +0100123extern const struct comp_algo comp_algos[];
124
Willy Tarreaubaaee002006-06-26 02:48:02 +0200125/*********************************************************************/
126
Willy Tarreau477ecd82010-01-03 21:12:30 +0100127/* list of config files */
128static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200129int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100130int relative_pid = 1; /* process id starting at 1 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200131
132/* global options */
133struct global global = {
Willy Tarreau247a13a2012-11-15 17:38:15 +0100134 .nbproc = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200135 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200136 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100137#ifdef DEFAULT_MAXZLIBMEM
Willy Tarreau5a940372012-12-03 12:10:45 +0100138 .maxzlibmem = DEFAULT_MAXZLIBMEM * 1024U * 1024U,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100139#else
William Lallemand9d5f5482012-11-07 16:12:57 +0100140 .maxzlibmem = 0,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100141#endif
William Lallemandd85f9172012-11-09 17:05:39 +0100142 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100143 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200144 .unix_bind = {
145 .ux = {
146 .uid = -1,
147 .gid = -1,
148 .mode = 0,
149 }
150 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200151 .tune = {
152 .bufsize = BUFSIZE,
153 .maxrewrite = MAXREWRITE,
Willy Tarreau43961d52010-10-04 20:39:20 +0200154 .chksize = BUFSIZE,
Willy Tarreaua24adf02014-11-27 01:11:56 +0100155 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200156 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200157#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100158 .sslcachesize = SSLCACHESIZE,
Remi Gacognef46cd6e2014-06-12 14:58:40 +0200159 .ssl_default_dh_param = SSL_DEFAULT_DH_PARAM,
Willy Tarreau03effc12014-02-12 14:55:41 +0100160#ifdef DEFAULT_SSL_MAX_RECORD
161 .ssl_max_record = DEFAULT_SSL_MAX_RECORD,
162#endif
Christopher Faulet31af49d2015-06-09 17:29:50 +0200163 .ssl_ctx_cache = DEFAULT_SSL_CTX_CACHE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200164#endif
William Lallemanda509e4c2012-11-07 16:54:34 +0100165#ifdef USE_ZLIB
166 .zlibmemlevel = 8,
167 .zlibwindowsize = MAX_WBITS,
168#endif
William Lallemandf3747832012-11-09 12:33:10 +0100169 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100170#ifdef DEFAULT_IDLE_TIMER
171 .idle_timer = DEFAULT_IDLE_TIMER,
172#else
173 .idle_timer = 1000, /* 1 second */
174#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200175 },
Emeric Brun76d88952012-10-05 15:47:31 +0200176#ifdef USE_OPENSSL
177#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200178 .maxsslconn = DEFAULT_MAXSSLCONN,
179#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200180#endif
David Carlier4a026412015-06-01 13:57:22 +0200181#ifdef USE_DEVICEATLAS
182 .deviceatlas = {
183 .loglevel = DA_SEV_INFO,
184 .useragentid = 0,
185 .jsonpath = 0,
186 .separator = '|',
187 },
188#endif
Dragan Dosenacd6b1f2015-06-11 21:36:33 +0200189#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +0200190 ._51degrees = {
191 .property_separator = ',',
192 .property_names = LIST_HEAD_INIT(global._51degrees.property_names),
193 .data_file_path = NULL,
194#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
195 .data_set = { },
196#endif
Dragan Dosen9373fc52015-08-07 16:41:23 +0200197 .cache_size = 0,
Dragan Dosen93b38d92015-06-29 16:43:25 +0200198 },
Dragan Dosenacd6b1f2015-06-11 21:36:33 +0200199#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200200 /* others NULL OK */
201};
202
203/*********************************************************************/
204
205int stopping; /* non zero means stopping in progress */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200206int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200207
208/* Here we store informations about the pids of the processes we may pause
209 * or kill. We will send them a signal every 10 ms until we can bind to all
210 * our ports. With 200 retries, that's about 2 seconds.
211 */
212#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200213static int *oldpids = NULL;
214static int oldpids_sig; /* use USR1 or TERM */
215
216/* this is used to drain data, and as a temporary buffer for sprintf()... */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100217struct chunk trash = { };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200218
Willy Tarreau8096de92010-02-26 11:12:27 +0100219/* this buffer is always the same size as standard buffers and is used for
220 * swapping data inside a buffer.
221 */
222char *swap_buffer = NULL;
223
Willy Tarreaubb545b42010-08-25 12:58:59 +0200224int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200225const int zero = 0;
226const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200227const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200228
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100229char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200230char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200231
Willy Tarreau89efaed2013-12-13 15:14:55 +0100232/* used from everywhere just to drain results we don't want to read and which
233 * recent versions of gcc increasingly and annoyingly complain about.
234 */
235int shut_your_big_mouth_gcc_int = 0;
236
Willy Tarreau08ceb102011-07-24 22:58:00 +0200237/* list of the temporarily limited listeners because of lack of resource */
238struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200239struct task *global_listener_queue_task;
240static struct task *manage_global_listener_queue(struct task *t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200241
Willy Tarreauff055502014-04-28 22:27:06 +0200242/* bitfield of a few warnings to emit just once (WARN_*) */
243unsigned int warned = 0;
244
Willy Tarreaubaaee002006-06-26 02:48:02 +0200245/*********************************************************************/
246/* general purpose functions ***************************************/
247/*********************************************************************/
248
249void display_version()
250{
251 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreauad90f0d2015-06-17 15:53:25 +0200252 printf("Copyright 2000-2015 Willy Tarreau <willy@haproxy.org>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200253}
254
Willy Tarreau7b066db2007-12-02 11:28:59 +0100255void display_build_opts()
256{
257 printf("Build options :"
258#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100259 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100260#endif
261#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100262 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100263#endif
264#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100265 "\n CC = " BUILD_CC
266#endif
267#ifdef BUILD_CFLAGS
268 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100269#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100270#ifdef BUILD_OPTIONS
271 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100272#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200273 "\n\nDefault settings :"
274 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
275 "\n\n",
276 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200277
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100278 printf("Encrypted password support via crypt(3): "
279#ifdef CONFIG_HAP_CRYPT
280 "yes"
281#else
282 "no"
283#endif
284 "\n");
285
Cyril Bonté6162c432012-11-10 19:27:47 +0100286#ifdef USE_ZLIB
287 printf("Built with zlib version : " ZLIB_VERSION "\n");
288#else /* USE_ZLIB */
289 printf("Built without zlib support (USE_ZLIB not set)\n");
290#endif
291 printf("Compression algorithms supported :");
292 {
293 int i;
294
Willy Tarreau615105e2015-03-28 16:40:46 +0100295 for (i = 0; comp_algos[i].cfg_name; i++) {
296 printf("%s %s(\"%s\")", (i == 0 ? "" : ","), comp_algos[i].cfg_name, comp_algos[i].ua_name);
Cyril Bonté6162c432012-11-10 19:27:47 +0100297 }
298 if (i == 0) {
299 printf("none");
300 }
301 }
302 printf("\n");
303
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200304#ifdef USE_OPENSSL
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200305 printf("Built with OpenSSL version : "
306#ifdef OPENSSL_IS_BORINGSSL
307 "BoringSSL\n");
308#else /* OPENSSL_IS_BORINGSSL */
309 OPENSSL_VERSION_TEXT "\n");
Willy Tarreau0cff0db2013-04-26 18:16:13 +0200310 printf("Running on OpenSSL version : %s%s\n",
311 SSLeay_version(SSLEAY_VERSION),
312 ((OPENSSL_VERSION_NUMBER ^ SSLeay()) >> 8) ? " (VERSIONS DIFFER!)" : "");
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200313#endif
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200314 printf("OpenSSL library supports TLS extensions : "
315#if OPENSSL_VERSION_NUMBER < 0x00907000L
316 "no (library version too old)"
317#elif defined(OPENSSL_NO_TLSEXT)
318 "no (disabled via OPENSSL_NO_TLSEXT)"
319#else
320 "yes"
321#endif
322 "\n");
323 printf("OpenSSL library supports SNI : "
324#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
325 "yes"
326#else
327#ifdef OPENSSL_NO_TLSEXT
328 "no (because of OPENSSL_NO_TLSEXT)"
329#else
330 "no (version might be too old, 0.9.8f min needed)"
331#endif
332#endif
333 "\n");
334 printf("OpenSSL library supports prefer-server-ciphers : "
335#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
336 "yes"
337#else
338 "no (0.9.7 or later needed)"
339#endif
340 "\n");
341#else /* USE_OPENSSL */
342 printf("Built without OpenSSL support (USE_OPENSSL not set)\n");
343#endif
Lukas Tribusea68d362013-04-04 12:24:16 +0200344
345#ifdef USE_PCRE
346 printf("Built with PCRE version : %s", pcre_version());
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200347 printf("\nPCRE library supports JIT : ");
348#ifdef USE_PCRE_JIT
349 {
350 int r;
351 pcre_config(PCRE_CONFIG_JIT, &r);
352 if (r)
353 printf("yes");
354 else
355 printf("no (libpcre build without JIT?)");
356 }
Lukas Tribusea68d362013-04-04 12:24:16 +0200357#else
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200358 printf("no (USE_PCRE_JIT not set)");
Lukas Tribusea68d362013-04-04 12:24:16 +0200359#endif
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200360 printf("\n");
Lukas Tribusea68d362013-04-04 12:24:16 +0200361#else
362 printf("Built without PCRE support (using libc's regex instead)\n");
363#endif
364
Cyril Bonté47eb2192015-03-02 00:08:39 +0100365#ifdef USE_LUA
366 printf("Built with Lua version : %s\n", LUA_RELEASE);
367#else
368 printf("Built without Lua support\n");
369#endif
370
Willy Tarreau29fbe512015-08-20 19:35:14 +0200371#if defined(CONFIG_HAP_TRANSPARENT)
Pieter Baauwd551fb52013-05-08 22:49:23 +0200372 printf("Built with transparent proxy support using:"
Pieter Baauwd551fb52013-05-08 22:49:23 +0200373#if defined(IP_TRANSPARENT)
374 " IP_TRANSPARENT"
375#endif
376#if defined(IPV6_TRANSPARENT)
377 " IPV6_TRANSPARENT"
378#endif
379#if defined(IP_FREEBIND)
380 " IP_FREEBIND"
381#endif
Pieter Baauwff30b662013-05-08 23:22:39 +0200382#if defined(IP_BINDANY)
383 " IP_BINDANY"
384#endif
385#if defined(IPV6_BINDANY)
386 " IPV6_BINDANY"
387#endif
Pieter Baauw1eb75922013-05-08 23:30:23 +0200388#if defined(SO_BINDANY)
389 " SO_BINDANY"
390#endif
Pieter Baauwd551fb52013-05-08 22:49:23 +0200391 "\n");
392#endif
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100393
394#if defined(CONFIG_HAP_NS)
395 printf("Built with network namespace support\n");
396#endif
Thomas Holmes6abded42015-05-12 16:23:58 +0100397
398#ifdef USE_51DEGREES
399 printf("Built with 51Degrees support\n");
400#endif
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100401 putchar('\n');
402
Willy Tarreaube5b6852009-10-03 18:57:08 +0200403 list_pollers(stdout);
404 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100405}
406
Willy Tarreaubaaee002006-06-26 02:48:02 +0200407/*
408 * This function prints the command line usage and exits
409 */
410void usage(char *name)
411{
412 display_version();
413 fprintf(stderr,
Willy Tarreau5d01a632009-06-22 16:02:30 +0200414 "Usage : %s [-f <cfgfile>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200415 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200416 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100417 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200418 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200419 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200420 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200421 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200422 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200423 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200424 " -n sets the maximum total # of connections (%d)\n"
425 " -m limits the usable amount of memory (in MB)\n"
426 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200427 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200428 " -p writes pids of all children to this file\n"
429#if defined(ENABLE_EPOLL)
430 " -de disables epoll() usage even when available\n"
431#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200432#if defined(ENABLE_KQUEUE)
433 " -dk disables kqueue() usage even when available\n"
434#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200435#if defined(ENABLE_POLL)
436 " -dp disables poll() usage even when available\n"
437#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200438#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100439 " -dS disables splice usage (broken on old kernels)\n"
440#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200441#if defined(USE_GETADDRINFO)
442 " -dG disables getaddrinfo() usage\n"
443#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100444 " -dV disables SSL verify on servers side\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200445 " -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.\n"
446 "\n",
447 name, DEFAULT_MAXCONN, cfg_maxpconn);
448 exit(1);
449}
450
451
452
453/*********************************************************************/
454/* more specific functions ***************************************/
455/*********************************************************************/
456
457/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200458 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
459 * a signal zero to all subscribers. This means that it's as easy as
460 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200461 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200462void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200463{
464 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200465 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200466 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200467}
468
469/*
470 * upon SIGTTOU, we pause everything
471 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200472void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200473{
474 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200475 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200476}
477
478/*
479 * upon SIGTTIN, let's have a soft stop.
480 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200481void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200482{
Willy Tarreaube58c382011-07-24 18:28:10 +0200483 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200484}
485
486/*
487 * this function dumps every server's state when the process receives SIGHUP.
488 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200489void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200490{
491 struct proxy *p = proxy;
492
493 Warning("SIGHUP received, dumping servers states.\n");
494 while (p) {
495 struct server *s = p->srv;
496
497 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
498 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100499 chunk_printf(&trash,
500 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
501 p->id, s->id,
Willy Tarreau892337c2014-05-13 23:41:20 +0200502 (s->state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100503 s->cur_sess, s->nbpend, s->counters.cum_sess);
504 Warning("%s\n", trash.str);
505 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200506 s = s->next;
507 }
508
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200509 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
510 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100511 chunk_printf(&trash,
512 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
513 p->id,
514 p->feconn, p->beconn, p->totpend, p->nbpend, p->fe_counters.cum_conn, p->be_counters.cum_conn);
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200515 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100516 chunk_printf(&trash,
517 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
518 p->id,
519 (p->srv_bck) ? "is running on backup servers" : "has no server available",
520 p->feconn, p->beconn, p->totpend, p->nbpend, p->fe_counters.cum_conn, p->be_counters.cum_conn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200521 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100522 chunk_printf(&trash,
523 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
524 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
525 p->id, p->srv_act, p->srv_bck,
526 p->feconn, p->beconn, p->totpend, p->nbpend, p->fe_counters.cum_conn, p->be_counters.cum_conn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200527 }
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100528 Warning("%s\n", trash.str);
529 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200530
531 p = p->next;
532 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200533}
534
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200535void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200536{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200537 /* dump memory usage then free everything possible */
538 dump_pools();
539 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200540}
541
Willy Tarreaubaaee002006-06-26 02:48:02 +0200542/*
543 * This function initializes all the necessary variables. It only returns
544 * if everything is OK. If something fails, it exits.
545 */
546void init(int argc, char **argv)
547{
Willy Tarreaubaaee002006-06-26 02:48:02 +0200548 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200549 char *tmp;
550 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200551 int err_code = 0;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100552 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000553 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200554 char *change_dir = NULL;
Yuxans Yao4e25b012012-10-19 10:36:09 +0800555 struct tm curtime;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200556
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100557 chunk_init(&trash, malloc(global.tune.bufsize), global.tune.bufsize);
Willy Tarreau2819e992013-12-13 14:41:10 +0100558 alloc_trash_buffers(global.tune.bufsize);
David du Colombier7af46052012-05-16 14:16:48 +0200559
Emeric Brun2b920a12010-09-23 18:30:22 +0200560 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
561 * the string in case of truncation, and at least FreeBSD appears not to do
562 * it.
563 */
564 memset(hostname, 0, sizeof(hostname));
565 gethostname(hostname, sizeof(hostname) - 1);
566 memset(localpeer, 0, sizeof(localpeer));
567 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
568
Willy Tarreaubaaee002006-06-26 02:48:02 +0200569 /*
570 * Initialize the previously static variables.
571 */
572
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100573 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200574
575
576#ifdef HAPROXY_MEMMAX
577 global.rlimit_memmax = HAPROXY_MEMMAX;
578#endif
579
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200580 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200581 start_date = now;
582
Willy Tarreau84310e22014-02-14 11:59:04 +0100583 srandom(now_ms - getpid());
584
Yuxans Yao4e25b012012-10-19 10:36:09 +0800585 /* Get the numeric timezone. */
586 get_localtime(start_date.tv_sec, &curtime);
587 strftime(localtimezone, 6, "%z", &curtime);
588
Willy Tarreau29857942009-05-10 09:01:21 +0200589 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100590 if (init_acl() != 0)
591 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200592 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +0200593 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200594 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200595 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +0200596 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200597 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100598 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200599
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100600 /* Initialise lua. */
601 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100602
Willy Tarreau43b78992009-01-25 15:42:27 +0100603 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200604#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100605 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200606#endif
607#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100608 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200609#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200610#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100611 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200612#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200613#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100614 global.tune.options |= GTUNE_USE_SPLICE;
615#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200616#if defined(USE_GETADDRINFO)
617 global.tune.options |= GTUNE_USE_GAI;
618#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200619
620 pid = getpid();
621 progname = *argv;
622 while ((tmp = strchr(progname, '/')) != NULL)
623 progname = tmp + 1;
624
Kevinm48936af2010-12-22 16:08:21 +0000625 /* the process name is used for the logs only */
626 global.log_tag = strdup(progname);
627
Willy Tarreaubaaee002006-06-26 02:48:02 +0200628 argc--; argv++;
629 while (argc > 0) {
630 char *flag;
631
632 if (**argv == '-') {
633 flag = *argv+1;
634
635 /* 1 arg */
636 if (*flag == 'v') {
637 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100638 if (flag[1] == 'v') /* -vv */
639 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200640 exit(0);
641 }
642#if defined(ENABLE_EPOLL)
643 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100644 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200645#endif
646#if defined(ENABLE_POLL)
647 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100648 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200649#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200650#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200651 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100652 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200653#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200654#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100655 else if (*flag == 'd' && flag[1] == 'S')
656 global.tune.options &= ~GTUNE_USE_SPLICE;
657#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200658#if defined(USE_GETADDRINFO)
659 else if (*flag == 'd' && flag[1] == 'G')
660 global.tune.options &= ~GTUNE_USE_GAI;
661#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100662 else if (*flag == 'd' && flag[1] == 'V')
663 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200664 else if (*flag == 'V')
665 arg_mode |= MODE_VERBOSE;
666 else if (*flag == 'd' && flag[1] == 'b')
667 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +0200668 else if (*flag == 'd' && flag[1] == 'M')
669 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreaubaaee002006-06-26 02:48:02 +0200670 else if (*flag == 'd')
671 arg_mode |= MODE_DEBUG;
672 else if (*flag == 'c')
673 arg_mode |= MODE_CHECK;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100674 else if (*flag == 'D') {
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200675 arg_mode |= MODE_DAEMON;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100676 if (flag[1] == 's') /* -Ds */
677 arg_mode |= MODE_SYSTEMD;
678 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200679 else if (*flag == 'q')
680 arg_mode |= MODE_QUIET;
681 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
682 /* list of pids to finish ('f') or terminate ('t') */
683
684 if (flag[1] == 'f')
685 oldpids_sig = SIGUSR1; /* finish then exit */
686 else
687 oldpids_sig = SIGTERM; /* terminate immediately */
688 argv++; argc--;
689
690 if (argc > 0) {
691 oldpids = calloc(argc, sizeof(int));
692 while (argc > 0) {
693 oldpids[nb_oldpids] = atol(*argv);
694 if (oldpids[nb_oldpids] <= 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200695 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200696 argc--; argv++;
697 nb_oldpids++;
698 }
699 }
700 }
701 else { /* >=2 args */
702 argv++; argc--;
703 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200704 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200705
706 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200707 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200708 case 'n' : cfg_maxconn = atol(*argv); break;
709 case 'm' : global.rlimit_memmax = atol(*argv); break;
710 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200711 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200712 case 'f' :
Willy Tarreau477ecd82010-01-03 21:12:30 +0100713 wl = (struct wordlist *)calloc(1, sizeof(*wl));
714 if (!wl) {
715 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200716 exit(1);
717 }
Willy Tarreau477ecd82010-01-03 21:12:30 +0100718 wl->s = *argv;
719 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200720 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200721 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200722 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200723 }
724 }
725 }
726 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200727 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200728 argv++; argc--;
729 }
730
731 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100732 (arg_mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_FOREGROUND | MODE_VERBOSE
Willy Tarreaubaaee002006-06-26 02:48:02 +0200733 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
734
Willy Tarreau477ecd82010-01-03 21:12:30 +0100735 if (LIST_ISEMPTY(&cfg_cfgfiles))
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200736 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200737
Willy Tarreau576132e2011-09-10 19:26:56 +0200738 if (change_dir && chdir(change_dir) < 0) {
739 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
740 exit(1);
741 }
742
Willy Tarreaubaaee002006-06-26 02:48:02 +0200743 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200744
745 init_default_instance();
746
Willy Tarreau477ecd82010-01-03 21:12:30 +0100747 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100748 int ret;
749
Willy Tarreau477ecd82010-01-03 21:12:30 +0100750 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100751 if (ret == -1) {
752 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100753 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100754 exit(1);
755 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100756 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100757 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100758 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200759 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200760 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200761 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200762
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100763 pattern_finalize_config();
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +0200764#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
765 tlskeys_finalize_config();
766#endif
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100767
Willy Tarreaubb925012009-07-23 13:36:36 +0200768 err_code |= check_config_validity();
769 if (err_code & (ERR_ABORT|ERR_FATAL)) {
770 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200771 exit(1);
772 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200773
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100774#ifdef CONFIG_HAP_NS
775 err_code |= netns_init();
776 if (err_code & (ERR_ABORT|ERR_FATAL)) {
777 Alert("Failed to initialize namespace support.\n");
778 exit(1);
779 }
780#endif
781
Willy Tarreaubaaee002006-06-26 02:48:02 +0200782 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100783 struct peers *pr;
784 struct proxy *px;
785
786 for (pr = peers; pr; pr = pr->next)
787 if (pr->peers_fe)
788 break;
789
790 for (px = proxy; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +0200791 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100792 break;
793
794 if (pr || px) {
795 /* At least one peer or one listener has been found */
796 qfprintf(stdout, "Configuration file is valid\n");
797 exit(0);
798 }
799 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
800 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200801 }
802
Baptiste Assmannfecd2b52015-08-14 16:20:52 +0200803 /* Apply server states */
804 apply_server_state();
805
Willy Tarreaue9b26022011-08-01 20:57:55 +0200806 global_listener_queue_task = task_new();
807 if (!global_listener_queue_task) {
808 Alert("Out of memory when initializing global task\n");
809 exit(1);
810 }
811 /* very simple initialization, users will queue the task if needed */
812 global_listener_queue_task->context = NULL; /* not even a context! */
813 global_listener_queue_task->process = manage_global_listener_queue;
814 global_listener_queue_task->expire = TICK_ETERNITY;
815
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200816 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200817 init_buffer();
David Carlier4a026412015-06-01 13:57:22 +0200818#if defined(USE_DEVICEATLAS)
819 init_deviceatlas();
820#endif
Dragan Dosen93b38d92015-06-29 16:43:25 +0200821#ifdef USE_51DEGREES
822 init_51degrees();
823#endif
Willy Tarreau8280d642009-09-23 23:37:52 +0200824
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200825 if (start_checks() < 0)
826 exit(1);
827
Willy Tarreaubaaee002006-06-26 02:48:02 +0200828 if (cfg_maxconn > 0)
829 global.maxconn = cfg_maxconn;
830
831 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200832 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200833 global.pidfile = strdup(cfg_pidfile);
834 }
835
Willy Tarreaud0256482015-01-15 21:45:22 +0100836 /* Now we want to compute the maxconn and possibly maxsslconn values.
837 * It's a bit tricky. If memmax is not set, maxconn defaults to
838 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
839 *
840 * If memmax is set, then it depends on which values are set. If
841 * maxsslconn is set, we use memmax to determine how many cleartext
842 * connections may be added, and set maxconn to the sum of the two.
843 * If maxconn is set and not maxsslconn, maxsslconn is computed from
844 * the remaining amount of memory between memmax and the cleartext
845 * connections. If neither are set, then it is considered that all
846 * connections are SSL-capable, and maxconn is computed based on this,
847 * then maxsslconn accordingly. We need to know if SSL is used on the
848 * frontends, backends, or both, because when it's used on both sides,
849 * we need twice the value for maxsslconn, but we only count the
850 * handshake once since it is not performed on the two sides at the
851 * same time (frontend-side is terminated before backend-side begins).
852 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +0100853 * ssl_handshake_cost during its initialization. In any case, if
854 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
855 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +0100856 */
857 if (!global.rlimit_memmax) {
858 if (global.maxconn == 0) {
859 global.maxconn = DEFAULT_MAXCONN;
860 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
861 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
862 }
863 }
864#ifdef USE_OPENSSL
865 else if (!global.maxconn && !global.maxsslconn &&
866 (global.ssl_used_frontend || global.ssl_used_backend)) {
867 /* memmax is set, compute everything automatically. Here we want
868 * to ensure that all SSL connections will be served. We take
869 * care of the number of sides where SSL is used, and consider
870 * the worst case : SSL used on both sides and doing a handshake
871 * simultaneously. Note that we can't have more than maxconn
872 * handshakes at a time by definition, so for the worst case of
873 * two SSL conns per connection, we count a single handshake.
874 */
875 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
876 int64_t mem = global.rlimit_memmax * 1048576ULL;
877
878 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
879 mem -= global.maxzlibmem;
880 mem = mem * MEM_USABLE_RATIO;
881
882 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +0200883 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +0100884 sides * global.ssl_session_max_cost + // SSL buffers, one per side
885 global.ssl_handshake_max_cost); // 1 handshake per connection max
886
887 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +0100888#ifdef SYSTEM_MAXCONN
889 if (global.maxconn > DEFAULT_MAXCONN)
890 global.maxconn = DEFAULT_MAXCONN;
891#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +0100892 global.maxsslconn = sides * global.maxconn;
893 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
894 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
895 global.maxconn, global.maxsslconn);
896 }
897 else if (!global.maxsslconn &&
898 (global.ssl_used_frontend || global.ssl_used_backend)) {
899 /* memmax and maxconn are known, compute maxsslconn automatically.
900 * maxsslconn being forced, we don't know how many of it will be
901 * on each side if both sides are being used. The worst case is
902 * when all connections use only one SSL instance because
903 * handshakes may be on two sides at the same time.
904 */
905 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
906 int64_t mem = global.rlimit_memmax * 1048576ULL;
907 int64_t sslmem;
908
909 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
910 mem -= global.maxzlibmem;
911 mem = mem * MEM_USABLE_RATIO;
912
Willy Tarreau87b09662015-04-03 00:22:06 +0200913 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +0100914 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
915 global.maxsslconn = round_2dig(global.maxsslconn);
916
917 if (sslmem <= 0 || global.maxsslconn < sides) {
918 Alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
919 "high for the global.memmax value (%d MB). The absolute maximum possible value "
920 "without SSL is %d, but %d was found and SSL is in use.\n",
921 global.rlimit_memmax,
Willy Tarreau87b09662015-04-03 00:22:06 +0200922 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
Willy Tarreaud0256482015-01-15 21:45:22 +0100923 global.maxconn);
924 exit(1);
925 }
926
927 if (global.maxsslconn > sides * global.maxconn)
928 global.maxsslconn = sides * global.maxconn;
929
930 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
931 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
932 }
933#endif
934 else if (!global.maxconn) {
935 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
936 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
937 int64_t mem = global.rlimit_memmax * 1048576ULL;
938 int64_t clearmem;
939
940 if (global.ssl_used_frontend || global.ssl_used_backend)
941 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
942
943 mem -= global.maxzlibmem;
944 mem = mem * MEM_USABLE_RATIO;
945
946 clearmem = mem;
947 if (sides)
948 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
949
Willy Tarreau87b09662015-04-03 00:22:06 +0200950 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +0100951 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +0100952#ifdef SYSTEM_MAXCONN
953 if (global.maxconn > DEFAULT_MAXCONN)
954 global.maxconn = DEFAULT_MAXCONN;
955#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +0100956
957 if (clearmem <= 0 || !global.maxconn) {
958 Alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
959 "high for the global.memmax value (%d MB). The absolute maximum possible value "
960 "is %d, but %d was found.\n",
961 global.rlimit_memmax,
962 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
963 global.maxsslconn);
964 exit(1);
965 }
966
967 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
968 if (sides && global.maxsslconn > sides * global.maxconn) {
969 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
970 "to be limited to %d. Better reduce global.maxsslconn to get more "
971 "room for extra connections.\n", global.maxsslconn, global.maxconn);
972 }
973 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
974 }
975 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200976
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100977 if (!global.maxpipes) {
978 /* maxpipes not specified. Count how many frontends and backends
979 * may be using splicing, and bound that to maxconn.
980 */
981 struct proxy *cur;
982 int nbfe = 0, nbbe = 0;
983
984 for (cur = proxy; cur; cur = cur->next) {
985 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
986 if (cur->cap & PR_CAP_FE)
987 nbfe += cur->maxconn;
988 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +0100989 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100990 }
991 }
992 global.maxpipes = MAX(nbfe, nbbe);
993 if (global.maxpipes > global.maxconn)
994 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +0100995 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100996 }
997
998
Willy Tarreauabacc2c2011-09-07 14:26:33 +0200999 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001000 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01001001 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001002
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001003 if (global.stats_fe)
1004 global.maxsock += global.stats_fe->maxconn;
1005
1006 if (peers) {
1007 /* peers also need to bypass global maxconn */
1008 struct peers *p = peers;
1009
1010 for (p = peers; p; p = p->next)
1011 if (p->peers_fe)
1012 global.maxsock += p->peers_fe->maxconn;
1013 }
1014
Willy Tarreau1db37712007-06-03 17:16:49 +02001015 if (global.tune.maxpollevents <= 0)
1016 global.tune.maxpollevents = MAX_POLL_EVENTS;
1017
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01001018 if (global.tune.recv_enough == 0)
1019 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
1020
Willy Tarreau27a674e2009-08-17 07:23:33 +02001021 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
1022 global.tune.maxrewrite = global.tune.bufsize / 2;
1023
Willy Tarreaubaaee002006-06-26 02:48:02 +02001024 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
1025 /* command line debug mode inhibits configuration mode */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001026 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001027 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
1028 }
1029
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001030 if (arg_mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001031 /* command line daemon mode inhibits foreground and debug modes mode */
1032 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001033 global.mode |= (arg_mode & (MODE_DAEMON | MODE_SYSTEMD));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001034 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001035
1036 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001037
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001038 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET))) {
1039 Warning("<debug> mode incompatible with <quiet>, <daemon> and <systemd>. Keeping <debug> only.\n");
1040 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001041 }
1042
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001043 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_SYSTEMD))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001044 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
1045 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
1046 global.nbproc = 1;
1047 }
1048
1049 if (global.nbproc < 1)
1050 global.nbproc = 1;
1051
Willy Tarreau8096de92010-02-26 11:12:27 +01001052 swap_buffer = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau7e2c6472012-10-29 20:44:36 +01001053 get_http_auth_buff = (char *)calloc(1, global.tune.bufsize);
Thierry FOURNIER7e25df32015-07-24 19:31:59 +02001054 static_table_key = calloc(1, sizeof(*static_table_key));
Willy Tarreau8096de92010-02-26 11:12:27 +01001055
Willy Tarreau8d5d77e2009-10-18 07:25:52 +02001056 fdinfo = (struct fdinfo *)calloc(1,
1057 sizeof(struct fdinfo) * (global.maxsock));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001058 fdtab = (struct fdtab *)calloc(1,
1059 sizeof(struct fdtab) * (global.maxsock));
Willy Tarreauef1d1f82007-04-16 00:25:25 +02001060 /*
1061 * Note: we could register external pollers here.
1062 * Built-in pollers have been registered before main().
1063 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001064
Willy Tarreau43b78992009-01-25 15:42:27 +01001065 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001066 disable_poller("kqueue");
1067
Willy Tarreau43b78992009-01-25 15:42:27 +01001068 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001069 disable_poller("epoll");
1070
Willy Tarreau43b78992009-01-25 15:42:27 +01001071 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001072 disable_poller("poll");
1073
Willy Tarreau43b78992009-01-25 15:42:27 +01001074 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001075 disable_poller("select");
1076
1077 /* Note: we could disable any poller by name here */
1078
Willy Tarreau2ff76222007-04-09 19:29:56 +02001079 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1080 list_pollers(stderr);
1081
Willy Tarreau4f60f162007-04-08 16:39:58 +02001082 if (!init_pollers()) {
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001083 Alert("No polling mechanism available.\n"
1084 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
1085 " is too low on this platform to support maxconn and the number of listeners\n"
1086 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
1087 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
Prach Pongpanichb837e682013-05-14 20:56:28 +02001088 " global maxconn setting to accommodate the system's limitation. For reference,\n"
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001089 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
1090 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
1091 " check build settings using 'haproxy -vv'.\n\n",
1092 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001093 exit(1);
1094 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001095 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1096 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001097 }
1098
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001099 if (!global.node)
1100 global.node = strdup(hostname);
1101
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01001102 if (!hlua_post_init())
1103 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01001104
Baptiste Assmann325137d2015-04-13 23:40:55 +02001105 /* initialize structures for name resolution */
1106 if (!dns_init_resolvers())
1107 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001108}
1109
Simon Horman6fb82592011-07-15 13:14:11 +09001110static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09001111{
Simon Hormanac821422011-07-15 13:14:09 +09001112 struct acl_term_suite *suite, *suiteb;
1113 struct acl_term *term, *termb;
1114
Simon Horman6fb82592011-07-15 13:14:11 +09001115 if (!cond)
1116 return;
1117
1118 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
1119 list_for_each_entry_safe(term, termb, &suite->terms, list) {
1120 LIST_DEL(&term->list);
1121 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09001122 }
Simon Horman6fb82592011-07-15 13:14:11 +09001123 LIST_DEL(&suite->list);
1124 free(suite);
1125 }
1126
1127 free(cond);
1128}
1129
1130static void deinit_tcp_rules(struct list *rules)
1131{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02001132 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09001133
1134 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09001135 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09001136 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09001137 free(trule);
1138 }
1139}
1140
Willy Tarreau12785782012-04-27 21:37:17 +02001141static void deinit_sample_arg(struct arg *p)
Simon Horman6fb82592011-07-15 13:14:11 +09001142{
Willy Tarreauf9954102012-04-20 14:03:29 +02001143 struct arg *p_back = p;
1144
Simon Horman6fb82592011-07-15 13:14:11 +09001145 if (!p)
1146 return;
1147
Willy Tarreauf9954102012-04-20 14:03:29 +02001148 while (p->type != ARGT_STOP) {
Willy Tarreau496aa012012-06-01 10:38:29 +02001149 if (p->type == ARGT_STR || p->unresolved) {
Willy Tarreauf9954102012-04-20 14:03:29 +02001150 free(p->data.str.str);
1151 p->data.str.str = NULL;
Willy Tarreau496aa012012-06-01 10:38:29 +02001152 p->unresolved = 0;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001153 }
Willy Tarreau46947782015-01-19 19:00:58 +01001154 else if (p->type == ARGT_REG) {
1155 if (p->data.reg) {
1156 regex_free(p->data.reg);
1157 free(p->data.reg);
1158 p->data.reg = NULL;
1159 }
1160 }
Willy Tarreauf9954102012-04-20 14:03:29 +02001161 p++;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001162 }
Simon Horman6fb82592011-07-15 13:14:11 +09001163
Willy Tarreau2e845be2012-10-19 19:49:09 +02001164 if (p_back != empty_arg_list)
1165 free(p_back);
Simon Horman6fb82592011-07-15 13:14:11 +09001166}
1167
1168static void deinit_stick_rules(struct list *rules)
1169{
1170 struct sticking_rule *rule, *ruleb;
1171
1172 list_for_each_entry_safe(rule, ruleb, rules, list) {
1173 LIST_DEL(&rule->list);
1174 deinit_acl_cond(rule->cond);
1175 if (rule->expr) {
Willy Tarreau12785782012-04-27 21:37:17 +02001176 struct sample_conv_expr *conv_expr, *conv_exprb;
Simon Horman6fb82592011-07-15 13:14:11 +09001177 list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list)
Willy Tarreau12785782012-04-27 21:37:17 +02001178 deinit_sample_arg(conv_expr->arg_p);
1179 deinit_sample_arg(rule->expr->arg_p);
Simon Horman6fb82592011-07-15 13:14:11 +09001180 free(rule->expr);
1181 }
1182 free(rule);
1183 }
1184}
1185
Willy Tarreaubaaee002006-06-26 02:48:02 +02001186void deinit(void)
1187{
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001188 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001189 struct cap_hdr *h,*h_next;
1190 struct server *s,*s_next;
1191 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001192 struct acl_cond *cond, *condb;
1193 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001194 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001195 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001196 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001197 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001198 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01001199 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001200 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02001201 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01001202 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001203 struct bind_conf *bind_conf, *bind_back;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001204 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001205
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001206 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001207 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02001208 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001209 free(p->id);
1210 free(p->check_req);
1211 free(p->cookie_name);
1212 free(p->cookie_domain);
1213 free(p->url_param_name);
1214 free(p->capture_name);
1215 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09001216 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02001217 if (p->conf.logformat_string != default_http_log_format &&
1218 p->conf.logformat_string != default_tcp_log_format &&
1219 p->conf.logformat_string != clf_http_log_format)
1220 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02001221
Willy Tarreau62a61232013-04-12 18:13:46 +02001222 free(p->conf.lfs_file);
1223 free(p->conf.uniqueid_format_string);
1224 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08001225 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001226
Willy Tarreaua534fea2008-08-03 12:19:50 +02001227 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02001228 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001229
Willy Tarreauf4f04122010-01-28 18:10:50 +01001230 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
1231 LIST_DEL(&cwl->list);
1232 free(cwl->s);
1233 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001234 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001235
Willy Tarreauf4f04122010-01-28 18:10:50 +01001236 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
1237 LIST_DEL(&cwl->list);
1238 free(cwl->s);
1239 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001240 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001241
Willy Tarreaub80c2302007-11-30 20:51:32 +01001242 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
1243 LIST_DEL(&cond->list);
1244 prune_acl_cond(cond);
1245 free(cond);
1246 }
1247
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001248 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001249 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001250 regex_free(exp->preg);
1251 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001252 }
1253
Willy Tarreau98d04852015-05-26 12:18:29 +02001254 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001255 expb = exp;
1256 exp = exp->next;
1257 free(expb);
1258 }
1259
1260 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001261 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001262 regex_free(exp->preg);
1263 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001264 }
1265
Willy Tarreau98d04852015-05-26 12:18:29 +02001266 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001267 expb = exp;
1268 exp = exp->next;
1269 free(expb);
1270 }
1271
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001272 /* build a list of unique uri_auths */
1273 if (!ua)
1274 ua = p->uri_auth;
1275 else {
1276 /* check if p->uri_auth is unique */
1277 for (uap = ua; uap; uap=uap->next)
1278 if (uap == p->uri_auth)
1279 break;
1280
Willy Tarreauaccc4e12008-06-24 11:14:45 +02001281 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001282 /* add it, if it is */
1283 p->uri_auth->next = ua;
1284 ua = p->uri_auth;
1285 }
1286 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001287
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001288 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
1289 LIST_DEL(&acl->list);
1290 prune_acl(acl);
1291 free(acl);
1292 }
1293
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001294 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
1295 LIST_DEL(&srule->list);
1296 prune_acl_cond(srule->cond);
1297 free(srule->cond);
1298 free(srule);
1299 }
1300
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001301 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
1302 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001303 if (rule->cond) {
1304 prune_acl_cond(rule->cond);
1305 free(rule->cond);
1306 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001307 free(rule);
1308 }
1309
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001310 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
1311 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01001312 if (rdr->cond) {
1313 prune_acl_cond(rdr->cond);
1314 free(rdr->cond);
1315 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001316 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01001317 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
1318 LIST_DEL(&lf->list);
1319 free(lf);
1320 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001321 free(rdr);
1322 }
1323
William Lallemand0f99e342011-10-12 17:50:54 +02001324 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
1325 LIST_DEL(&log->list);
1326 free(log);
1327 }
1328
William Lallemand723b73a2012-02-08 16:37:49 +01001329 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
1330 LIST_DEL(&lf->list);
1331 free(lf);
1332 }
1333
Simon Hormanac821422011-07-15 13:14:09 +09001334 deinit_tcp_rules(&p->tcp_req.inspect_rules);
1335 deinit_tcp_rules(&p->tcp_req.l4_rules);
1336
Simon Horman6fb82592011-07-15 13:14:11 +09001337 deinit_stick_rules(&p->storersp_rules);
1338 deinit_stick_rules(&p->sticking_rules);
1339
Willy Tarreaubaaee002006-06-26 02:48:02 +02001340 h = p->req_cap;
1341 while (h) {
1342 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001343 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001344 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001345 free(h);
1346 h = h_next;
1347 }/* end while(h) */
1348
1349 h = p->rsp_cap;
1350 while (h) {
1351 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001352 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001353 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001354 free(h);
1355 h = h_next;
1356 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001357
Willy Tarreaubaaee002006-06-26 02:48:02 +02001358 s = p->srv;
1359 while (s) {
1360 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001361
Willy Tarreau5b3a2022012-09-28 15:01:02 +02001362 if (s->check.task) {
1363 task_delete(s->check.task);
1364 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001365 }
Simon Hormand60d6912013-11-25 10:46:36 +09001366 if (s->agent.task) {
1367 task_delete(s->agent.task);
1368 task_free(s->agent.task);
1369 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001370
Willy Tarreau2e993902011-10-31 11:53:20 +01001371 if (s->warmup) {
1372 task_delete(s->warmup);
1373 task_free(s->warmup);
1374 }
1375
Willy Tarreaua534fea2008-08-03 12:19:50 +02001376 free(s->id);
1377 free(s->cookie);
Willy Tarreau1ae1b7b2012-09-28 15:28:30 +02001378 free(s->check.bi);
1379 free(s->check.bo);
Simon Hormand60d6912013-11-25 10:46:36 +09001380 free(s->agent.bi);
1381 free(s->agent.bo);
Sárközi, László34c01792014-09-05 10:08:23 +02001382 free((char*)s->conf.file);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001383 free(s);
1384 s = s_next;
1385 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001386
Willy Tarreau4348fad2012-09-20 16:48:07 +02001387 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02001388 unbind_listener(l);
1389 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001390 LIST_DEL(&l->by_fe);
1391 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001392 free(l->name);
1393 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001394 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001395 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001396
Willy Tarreau4348fad2012-09-20 16:48:07 +02001397 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001398 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
1399#ifdef USE_OPENSSL
Christopher Faulet31af49d2015-06-09 17:29:50 +02001400 ssl_sock_free_ca(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001401 ssl_sock_free_all_ctx(bind_conf);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001402 free(bind_conf->ca_file);
Christopher Faulet31af49d2015-06-09 17:29:50 +02001403 free(bind_conf->ca_sign_file);
1404 free(bind_conf->ca_sign_pass);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001405 free(bind_conf->ciphers);
Emeric Brun2b58d042012-09-20 17:10:03 +02001406 free(bind_conf->ecdhe);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001407 free(bind_conf->crl_file);
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001408#endif /* USE_OPENSSL */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001409 free(bind_conf->file);
1410 free(bind_conf->arg);
1411 LIST_DEL(&bind_conf->by_fe);
1412 free(bind_conf);
1413 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001414
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001415 free(p->desc);
1416 free(p->fwdfor_hdr_name);
1417
Willy Tarreauff011f22011-01-06 17:51:27 +01001418 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06001419 free_http_res_rules(&p->http_res_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02001420 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01001421
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001422 pool_destroy2(p->req_cap_pool);
1423 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09001424 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001425
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001426 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001427 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001428 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001429 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02001430
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001431 while (ua) {
1432 uap = ua;
1433 ua = ua->next;
1434
Willy Tarreaua534fea2008-08-03 12:19:50 +02001435 free(uap->uri_prefix);
1436 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001437 free(uap->node);
1438 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001439
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001440 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001441 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001442
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001443 free(uap);
1444 }
1445
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001446 userlist_free(userlist);
1447
Willy Tarreaudd815982007-10-16 12:25:14 +02001448 protocol_unbind_all();
1449
David Carlier4a026412015-06-01 13:57:22 +02001450#if defined(USE_DEVICEATLAS)
1451 deinit_deviceatlas();
1452#endif
1453
Thomas Holmes5ed33ee2015-05-14 17:14:30 +01001454#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +02001455 deinit_51degrees();
Thomas Holmes4d441a72015-05-29 12:54:25 +01001456#endif
Thomas Holmes5ed33ee2015-05-14 17:14:30 +01001457
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001458 free(global.log_send_hostname); global.log_send_hostname = NULL;
Kevinm48936af2010-12-22 16:08:21 +00001459 free(global.log_tag); global.log_tag = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001460 free(global.chroot); global.chroot = NULL;
1461 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001462 free(global.node); global.node = NULL;
1463 free(global.desc); global.desc = NULL;
Godbach4cc1b0d2013-06-26 16:49:51 +08001464 free(fdinfo); fdinfo = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001465 free(fdtab); fdtab = NULL;
1466 free(oldpids); oldpids = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001467 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001468
William Lallemand0f99e342011-10-12 17:50:54 +02001469 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1470 LIST_DEL(&log->list);
1471 free(log);
1472 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001473 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1474 LIST_DEL(&wl->list);
1475 free(wl);
1476 }
1477
Willy Tarreau87b09662015-04-03 00:22:06 +02001478 pool_destroy2(pool2_stream);
Willy Tarreaufeb76402015-04-03 14:10:06 +02001479 pool_destroy2(pool2_session);
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001480 pool_destroy2(pool2_connection);
Willy Tarreau9b28e032012-10-12 23:49:43 +02001481 pool_destroy2(pool2_buffer);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001482 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001483 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001484 pool_destroy2(pool2_capture);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001485 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001486 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001487 pool_destroy2(pool2_hdr_idx);
Willy Tarreau63986c72015-04-03 22:55:33 +02001488 pool_destroy2(pool2_http_txn);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001489
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001490 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001491} /* end deinit() */
1492
Willy Tarreaubb545b42010-08-25 12:58:59 +02001493/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1494 * pids the signal was correctly delivered to.
1495 */
1496static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001497{
1498 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001499 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001500 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001501 if (kill(oldpids[p], sig) == 0)
1502 ret++;
1503 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001504}
1505
Willy Tarreau918ff602011-07-25 16:33:49 +02001506/* Runs the polling loop */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001507void run_poll_loop()
1508{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001509 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001510
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001511 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001512 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001513 /* Process a few tasks */
1514 process_runnable_tasks();
1515
Willy Tarreau29857942009-05-10 09:01:21 +02001516 /* check if we caught some signals and process them */
1517 signal_process_queue();
1518
Willy Tarreau58b458d2008-06-29 22:40:23 +02001519 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001520 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001521
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001522 /* stop when there's nothing left to do */
1523 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001524 break;
1525
Willy Tarreau10146c92015-04-13 20:44:19 +02001526 /* expire immediately if events are pending */
Willy Tarreau64bca9d2015-09-25 17:39:23 +02001527 if (fd_cache_num || run_queue || signal_queue_len || !LIST_ISEMPTY(&applet_active_queue))
Willy Tarreau10146c92015-04-13 20:44:19 +02001528 next = now_ms;
1529
Willy Tarreau58b458d2008-06-29 22:40:23 +02001530 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001531 cur_poller.poll(&cur_poller, next);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01001532 fd_process_cached_events();
Willy Tarreau3c595ac2015-04-19 09:59:31 +02001533 applet_run_active();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001534 }
1535}
1536
Willy Tarreaue9b26022011-08-01 20:57:55 +02001537/* This is the global management task for listeners. It enables listeners waiting
1538 * for global resources when there are enough free resource, or at least once in
1539 * a while. It is designed to be called as a task.
1540 */
1541static struct task *manage_global_listener_queue(struct task *t)
1542{
1543 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001544 /* queue is empty, nothing to do */
1545 if (LIST_ISEMPTY(&global_listener_queue))
1546 goto out;
1547
1548 /* If there are still too many concurrent connections, let's wait for
1549 * some of them to go away. We don't need to re-arm the timer because
1550 * each of them will scan the queue anyway.
1551 */
1552 if (unlikely(actconn >= global.maxconn))
1553 goto out;
1554
1555 /* We should periodically try to enable listeners waiting for a global
1556 * resource here, because it is possible, though very unlikely, that
1557 * they have been blocked by a temporary lack of global resource such
1558 * as a file descriptor or memory and that the temporary condition has
1559 * disappeared.
1560 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001561 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001562
1563 out:
1564 t->expire = next;
1565 task_queue(t);
1566 return t;
1567}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001568
Willy Tarreaubaaee002006-06-26 02:48:02 +02001569int main(int argc, char **argv)
1570{
1571 int err, retry;
1572 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001573 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02001574 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001575
Emeric Bruncf20bf12010-10-22 16:06:11 +02001576 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001577 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1578 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1579 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001580
Willy Tarreaue437c442010-03-17 18:02:46 +01001581 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1582 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1583 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001584 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001585 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001586
Willy Tarreaudc23a922011-02-16 11:10:36 +01001587 /* ulimits */
1588 if (!global.rlimit_nofile)
1589 global.rlimit_nofile = global.maxsock;
1590
1591 if (global.rlimit_nofile) {
1592 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1593 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
1594 Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile);
1595 }
1596 }
1597
1598 if (global.rlimit_memmax) {
1599 limit.rlim_cur = limit.rlim_max =
1600 global.rlimit_memmax * 1048576 / global.nbproc;
1601#ifdef RLIMIT_AS
1602 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1603 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1604 argv[0], global.rlimit_memmax);
1605 }
1606#else
1607 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1608 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1609 argv[0], global.rlimit_memmax);
1610 }
1611#endif
1612 }
1613
Willy Tarreaubaaee002006-06-26 02:48:02 +02001614 /* We will loop at most 100 times with 10 ms delay each time.
1615 * That's at most 1 second. We only send a signal to old pids
1616 * if we cannot grab at least one port.
1617 */
1618 retry = MAX_START_RETRIES;
1619 err = ERR_NONE;
1620 while (retry >= 0) {
1621 struct timeval w;
1622 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001623 /* exit the loop on no error or fatal error */
1624 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001625 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001626 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001627 break;
1628
1629 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1630 * listening sockets. So on those platforms, it would be wiser to
1631 * simply send SIGUSR1, which will not be undoable.
1632 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001633 if (tell_old_pids(SIGTTOU) == 0) {
1634 /* no need to wait if we can't contact old pids */
1635 retry = 0;
1636 continue;
1637 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001638 /* give some time to old processes to stop listening */
1639 w.tv_sec = 0;
1640 w.tv_usec = 10*1000;
1641 select(0, NULL, NULL, NULL, &w);
1642 retry--;
1643 }
1644
1645 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001646 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001647 if (retry != MAX_START_RETRIES && nb_oldpids) {
1648 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001649 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001650 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001651 exit(1);
1652 }
1653
1654 if (listeners == 0) {
Willy Tarreauf2ee0162015-08-09 11:01:51 +02001655 Alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001656 /* Note: we don't have to send anything to the old pids because we
1657 * never stopped them. */
1658 exit(1);
1659 }
1660
Emeric Bruncf20bf12010-10-22 16:06:11 +02001661 err = protocol_bind_all(errmsg, sizeof(errmsg));
1662 if ((err & ~ERR_WARN) != ERR_NONE) {
1663 if ((err & ERR_ALERT) || (err & ERR_WARN))
1664 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1665
Willy Tarreaudd815982007-10-16 12:25:14 +02001666 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1667 protocol_unbind_all(); /* cleanup everything we can */
1668 if (nb_oldpids)
1669 tell_old_pids(SIGTTIN);
1670 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001671 } else if (err & ERR_WARN) {
1672 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001673 }
1674
Willy Tarreaubaaee002006-06-26 02:48:02 +02001675 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001676 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1677 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001678
Willy Tarreaubaaee002006-06-26 02:48:02 +02001679 /* MODE_QUIET can inhibit alerts and warnings below this line */
1680
1681 global.mode &= ~MODE_STARTING;
1682 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1683 /* detach from the tty */
1684 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001685 }
1686
1687 /* open log & pid files before the chroot */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001688 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001689 unlink(global.pidfile);
1690 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1691 if (pidfd < 0) {
1692 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1693 if (nb_oldpids)
1694 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001695 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001696 exit(1);
1697 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001698 }
1699
Willy Tarreaub38651a2007-03-24 17:24:39 +01001700 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1701 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001702 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001703 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001704 exit(1);
1705 }
1706
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001707 /* If the user is not root, we'll still let him try the configuration
1708 * but we inform him that unexpected behaviour may occur.
1709 */
1710 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1711 Warning("[%s.main()] Some options which require full privileges"
1712 " might not work well.\n"
1713 "", argv[0]);
1714
Willy Tarreauf223cc02007-10-15 18:57:08 +02001715 /* chroot if needed */
1716 if (global.chroot != NULL) {
Willy Tarreau21337822012-04-29 14:11:38 +02001717 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Willy Tarreauf223cc02007-10-15 18:57:08 +02001718 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1719 if (nb_oldpids)
1720 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001721 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001722 exit(1);
1723 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02001724 }
1725
Willy Tarreaubaaee002006-06-26 02:48:02 +02001726 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001727 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001728
1729 /* Note that any error at this stage will be fatal because we will not
1730 * be able to restart the old pids.
1731 */
1732
1733 /* setgid / setuid */
Michael Schererab012dd2013-01-12 18:35:19 +01001734 if (global.gid) {
1735 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
1736 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
1737 " without 'uid'/'user' is generally useless.\n", argv[0]);
1738
1739 if (setgid(global.gid) == -1) {
1740 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
1741 protocol_unbind_all();
1742 exit(1);
1743 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001744 }
1745
1746 if (global.uid && setuid(global.uid) == -1) {
1747 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001748 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001749 exit(1);
1750 }
1751
1752 /* check ulimits */
1753 limit.rlim_cur = limit.rlim_max = 0;
1754 getrlimit(RLIMIT_NOFILE, &limit);
1755 if (limit.rlim_cur < global.maxsock) {
1756 Warning("[%s.main()] FD limit (%d) too low for maxconn=%d/maxsock=%d. Please raise 'ulimit-n' to %d or more to avoid any trouble.\n",
Willy Tarreau1772ece2009-04-03 14:49:12 +02001757 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001758 }
1759
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001760 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001761 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001762 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001763 int ret = 0;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001764 int *children = calloc(global.nbproc, sizeof(int));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001765 int proc;
1766
1767 /* the father launches the required number of processes */
1768 for (proc = 0; proc < global.nbproc; proc++) {
1769 ret = fork();
1770 if (ret < 0) {
1771 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001772 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001773 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001774 }
1775 else if (ret == 0) /* child breaks here */
1776 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001777 children[proc] = ret;
Willy Tarreau269ab312012-09-05 08:02:48 +02001778 if (pidfd >= 0) {
1779 char pidstr[100];
1780 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01001781 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001782 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001783 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001784 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001785
1786#ifdef USE_CPU_AFFINITY
1787 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02001788 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001789 global.cpu_map[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02001790#ifdef __FreeBSD__
1791 cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1792#else
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001793 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1794#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02001795#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001796 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02001797 if (pidfd >= 0) {
1798 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
1799 close(pidfd);
1800 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02001801
1802 /* We won't ever use this anymore */
1803 free(oldpids); oldpids = NULL;
1804 free(global.chroot); global.chroot = NULL;
1805 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001806
Willy Tarreauedaff0a2015-05-01 17:01:08 +02001807 if (proc == global.nbproc) {
1808 if (global.mode & MODE_SYSTEMD) {
1809 protocol_unbind_all();
1810 for (proc = 0; proc < global.nbproc; proc++)
1811 while (waitpid(children[proc], NULL, 0) == -1 && errno == EINTR);
1812 }
1813 exit(0); /* parent must leave */
1814 }
1815
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001816 /* we might have to unbind some proxies from some processes */
1817 px = proxy;
1818 while (px != NULL) {
1819 if (px->bind_proc && px->state != PR_STSTOPPED) {
Willy Tarreaua9db57e2013-01-18 11:29:29 +01001820 if (!(px->bind_proc & (1UL << proc)))
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001821 stop_proxy(px);
1822 }
1823 px = px->next;
1824 }
1825
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001826 /* we might have to unbind some peers sections from some processes */
1827 for (curpeers = peers; curpeers; curpeers = curpeers->next) {
1828 if (!curpeers->peers_fe)
1829 continue;
1830
1831 if (curpeers->peers_fe->bind_proc & (1UL << proc))
1832 continue;
1833
1834 stop_proxy(curpeers->peers_fe);
1835 /* disable this peer section so that it kills itself */
1836 curpeers->peers_fe = NULL;
1837 }
1838
Dirkjan Bussink07fcaaa2014-04-28 22:57:16 +00001839 free(children);
1840 children = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001841 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
1842 * that we can detach from the TTY. We MUST NOT do it in other cases since
1843 * it would have already be done, and 0-2 would have been affected to listening
1844 * sockets
1845 */
Willy Tarreau106cb762008-11-16 07:40:34 +01001846 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001847 /* detach from the tty */
1848 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01001849 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001850 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
1851 }
1852 pid = getpid(); /* update child's pid */
1853 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02001854 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001855 }
1856
Willy Tarreaudd815982007-10-16 12:25:14 +02001857 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001858 /*
1859 * That's it : the central polling loop. Run until we stop.
1860 */
1861 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001862
Willy Tarreaubaaee002006-06-26 02:48:02 +02001863 /* Do some cleanup */
1864 deinit();
1865
1866 exit(0);
1867}
1868
1869
1870/*
1871 * Local variables:
1872 * c-indent-level: 8
1873 * c-basic-offset: 8
1874 * End:
1875 */