blob: 04bfabd033727cae3f816e98001ca571fd0b8e8a [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 Tarreaued9dddd2015-11-26 16:34:56 +0100137#if defined(USE_ZLIB) && defined(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,
Willy Tarreau27097842015-09-28 13:53:23 +0200153 .maxrewrite = -1,
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 = {
David Carlierdf3785f2015-12-02 11:22:53 +0000183 .loglevel = 0,
David Carlier4a026412015-06-01 13:57:22 +0200184 .jsonpath = 0,
David Carlier5801a822015-09-25 14:13:44 +0100185 .cookiename = 0,
186 .cookienamelen = 0,
187 .useragentid = 0,
188 .daset = 0,
David Carlier4a026412015-06-01 13:57:22 +0200189 .separator = '|',
190 },
191#endif
Dragan Dosenacd6b1f2015-06-11 21:36:33 +0200192#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +0200193 ._51degrees = {
194 .property_separator = ',',
195 .property_names = LIST_HEAD_INIT(global._51degrees.property_names),
196 .data_file_path = NULL,
197#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
198 .data_set = { },
199#endif
Dragan Dosen9373fc52015-08-07 16:41:23 +0200200 .cache_size = 0,
Dragan Dosen93b38d92015-06-29 16:43:25 +0200201 },
Dragan Dosenacd6b1f2015-06-11 21:36:33 +0200202#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200203 /* others NULL OK */
204};
205
206/*********************************************************************/
207
208int stopping; /* non zero means stopping in progress */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200209int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200210
211/* Here we store informations about the pids of the processes we may pause
212 * or kill. We will send them a signal every 10 ms until we can bind to all
213 * our ports. With 200 retries, that's about 2 seconds.
214 */
215#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200216static int *oldpids = NULL;
217static int oldpids_sig; /* use USR1 or TERM */
218
219/* this is used to drain data, and as a temporary buffer for sprintf()... */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100220struct chunk trash = { };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200221
Willy Tarreau8096de92010-02-26 11:12:27 +0100222/* this buffer is always the same size as standard buffers and is used for
223 * swapping data inside a buffer.
224 */
225char *swap_buffer = NULL;
226
Willy Tarreaubb545b42010-08-25 12:58:59 +0200227int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200228const int zero = 0;
229const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200230const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200231
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100232char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200233char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200234
Willy Tarreau89efaed2013-12-13 15:14:55 +0100235/* used from everywhere just to drain results we don't want to read and which
236 * recent versions of gcc increasingly and annoyingly complain about.
237 */
238int shut_your_big_mouth_gcc_int = 0;
239
Willy Tarreau08ceb102011-07-24 22:58:00 +0200240/* list of the temporarily limited listeners because of lack of resource */
241struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200242struct task *global_listener_queue_task;
243static struct task *manage_global_listener_queue(struct task *t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200244
Willy Tarreauff055502014-04-28 22:27:06 +0200245/* bitfield of a few warnings to emit just once (WARN_*) */
246unsigned int warned = 0;
247
Willy Tarreaubaaee002006-06-26 02:48:02 +0200248/*********************************************************************/
249/* general purpose functions ***************************************/
250/*********************************************************************/
251
252void display_version()
253{
254 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreauad90f0d2015-06-17 15:53:25 +0200255 printf("Copyright 2000-2015 Willy Tarreau <willy@haproxy.org>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200256}
257
Willy Tarreau7b066db2007-12-02 11:28:59 +0100258void display_build_opts()
259{
260 printf("Build options :"
261#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100262 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100263#endif
264#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100265 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100266#endif
267#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100268 "\n CC = " BUILD_CC
269#endif
270#ifdef BUILD_CFLAGS
271 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100272#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100273#ifdef BUILD_OPTIONS
274 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100275#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200276 "\n\nDefault settings :"
277 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
278 "\n\n",
279 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200280
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100281 printf("Encrypted password support via crypt(3): "
282#ifdef CONFIG_HAP_CRYPT
283 "yes"
284#else
285 "no"
286#endif
287 "\n");
288
Cyril Bonté6162c432012-11-10 19:27:47 +0100289#ifdef USE_ZLIB
290 printf("Built with zlib version : " ZLIB_VERSION "\n");
Willy Tarreau86ac1762015-10-13 16:46:28 +0200291#elif defined(USE_SLZ)
292 printf("Built with libslz for stateless compression.\n");
Cyril Bonté6162c432012-11-10 19:27:47 +0100293#else /* USE_ZLIB */
Willy Tarreau86ac1762015-10-13 16:46:28 +0200294 printf("Built without compression support (neither USE_ZLIB nor USE_SLZ are set)\n");
Cyril Bonté6162c432012-11-10 19:27:47 +0100295#endif
296 printf("Compression algorithms supported :");
297 {
298 int i;
299
Willy Tarreau615105e2015-03-28 16:40:46 +0100300 for (i = 0; comp_algos[i].cfg_name; i++) {
301 printf("%s %s(\"%s\")", (i == 0 ? "" : ","), comp_algos[i].cfg_name, comp_algos[i].ua_name);
Cyril Bonté6162c432012-11-10 19:27:47 +0100302 }
303 if (i == 0) {
304 printf("none");
305 }
306 }
307 printf("\n");
308
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200309#ifdef USE_OPENSSL
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200310 printf("Built with OpenSSL version : "
311#ifdef OPENSSL_IS_BORINGSSL
312 "BoringSSL\n");
313#else /* OPENSSL_IS_BORINGSSL */
314 OPENSSL_VERSION_TEXT "\n");
Willy Tarreau0cff0db2013-04-26 18:16:13 +0200315 printf("Running on OpenSSL version : %s%s\n",
316 SSLeay_version(SSLEAY_VERSION),
317 ((OPENSSL_VERSION_NUMBER ^ SSLeay()) >> 8) ? " (VERSIONS DIFFER!)" : "");
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200318#endif
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200319 printf("OpenSSL library supports TLS extensions : "
320#if OPENSSL_VERSION_NUMBER < 0x00907000L
321 "no (library version too old)"
322#elif defined(OPENSSL_NO_TLSEXT)
323 "no (disabled via OPENSSL_NO_TLSEXT)"
324#else
325 "yes"
326#endif
327 "\n");
328 printf("OpenSSL library supports SNI : "
329#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
330 "yes"
331#else
332#ifdef OPENSSL_NO_TLSEXT
333 "no (because of OPENSSL_NO_TLSEXT)"
334#else
335 "no (version might be too old, 0.9.8f min needed)"
336#endif
337#endif
338 "\n");
339 printf("OpenSSL library supports prefer-server-ciphers : "
340#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
341 "yes"
342#else
343 "no (0.9.7 or later needed)"
344#endif
345 "\n");
346#else /* USE_OPENSSL */
347 printf("Built without OpenSSL support (USE_OPENSSL not set)\n");
348#endif
Lukas Tribusea68d362013-04-04 12:24:16 +0200349
350#ifdef USE_PCRE
351 printf("Built with PCRE version : %s", pcre_version());
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200352 printf("\nPCRE library supports JIT : ");
353#ifdef USE_PCRE_JIT
354 {
355 int r;
356 pcre_config(PCRE_CONFIG_JIT, &r);
357 if (r)
358 printf("yes");
359 else
360 printf("no (libpcre build without JIT?)");
361 }
Lukas Tribusea68d362013-04-04 12:24:16 +0200362#else
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200363 printf("no (USE_PCRE_JIT not set)");
Lukas Tribusea68d362013-04-04 12:24:16 +0200364#endif
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200365 printf("\n");
Lukas Tribusea68d362013-04-04 12:24:16 +0200366#else
367 printf("Built without PCRE support (using libc's regex instead)\n");
368#endif
369
Cyril Bonté47eb2192015-03-02 00:08:39 +0100370#ifdef USE_LUA
371 printf("Built with Lua version : %s\n", LUA_RELEASE);
372#else
373 printf("Built without Lua support\n");
374#endif
375
Willy Tarreau29fbe512015-08-20 19:35:14 +0200376#if defined(CONFIG_HAP_TRANSPARENT)
Pieter Baauwd551fb52013-05-08 22:49:23 +0200377 printf("Built with transparent proxy support using:"
Pieter Baauwd551fb52013-05-08 22:49:23 +0200378#if defined(IP_TRANSPARENT)
379 " IP_TRANSPARENT"
380#endif
381#if defined(IPV6_TRANSPARENT)
382 " IPV6_TRANSPARENT"
383#endif
384#if defined(IP_FREEBIND)
385 " IP_FREEBIND"
386#endif
Pieter Baauwff30b662013-05-08 23:22:39 +0200387#if defined(IP_BINDANY)
388 " IP_BINDANY"
389#endif
390#if defined(IPV6_BINDANY)
391 " IPV6_BINDANY"
392#endif
Pieter Baauw1eb75922013-05-08 23:30:23 +0200393#if defined(SO_BINDANY)
394 " SO_BINDANY"
395#endif
Pieter Baauwd551fb52013-05-08 22:49:23 +0200396 "\n");
397#endif
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100398
399#if defined(CONFIG_HAP_NS)
400 printf("Built with network namespace support\n");
401#endif
Thomas Holmes6abded42015-05-12 16:23:58 +0100402
David Carlierdf3785f2015-12-02 11:22:53 +0000403#ifdef USE_DEVICEATLAS
404 printf("Built with DeviceAtlas support\n");
405#endif
Thomas Holmes6abded42015-05-12 16:23:58 +0100406#ifdef USE_51DEGREES
407 printf("Built with 51Degrees support\n");
408#endif
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100409 putchar('\n');
410
Willy Tarreaube5b6852009-10-03 18:57:08 +0200411 list_pollers(stdout);
412 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100413}
414
Willy Tarreaubaaee002006-06-26 02:48:02 +0200415/*
416 * This function prints the command line usage and exits
417 */
418void usage(char *name)
419{
420 display_version();
421 fprintf(stderr,
Willy Tarreau5d01a632009-06-22 16:02:30 +0200422 "Usage : %s [-f <cfgfile>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200423 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200424 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100425 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200426 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200427 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200428 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200429 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200430 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200431 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200432 " -n sets the maximum total # of connections (%d)\n"
433 " -m limits the usable amount of memory (in MB)\n"
434 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200435 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200436 " -p writes pids of all children to this file\n"
437#if defined(ENABLE_EPOLL)
438 " -de disables epoll() usage even when available\n"
439#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200440#if defined(ENABLE_KQUEUE)
441 " -dk disables kqueue() usage even when available\n"
442#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200443#if defined(ENABLE_POLL)
444 " -dp disables poll() usage even when available\n"
445#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200446#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100447 " -dS disables splice usage (broken on old kernels)\n"
448#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200449#if defined(USE_GETADDRINFO)
450 " -dG disables getaddrinfo() usage\n"
451#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100452 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200453 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200454 "\n",
455 name, DEFAULT_MAXCONN, cfg_maxpconn);
456 exit(1);
457}
458
459
460
461/*********************************************************************/
462/* more specific functions ***************************************/
463/*********************************************************************/
464
465/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200466 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
467 * a signal zero to all subscribers. This means that it's as easy as
468 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200469 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200470void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200471{
472 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200473 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200474 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200475}
476
477/*
478 * upon SIGTTOU, we pause everything
479 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200480void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200481{
482 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200483 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200484}
485
486/*
487 * upon SIGTTIN, let's have a soft stop.
488 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200489void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200490{
Willy Tarreaube58c382011-07-24 18:28:10 +0200491 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200492}
493
494/*
495 * this function dumps every server's state when the process receives SIGHUP.
496 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200497void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200498{
499 struct proxy *p = proxy;
500
501 Warning("SIGHUP received, dumping servers states.\n");
502 while (p) {
503 struct server *s = p->srv;
504
505 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
506 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100507 chunk_printf(&trash,
508 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
509 p->id, s->id,
Willy Tarreau892337c2014-05-13 23:41:20 +0200510 (s->state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100511 s->cur_sess, s->nbpend, s->counters.cum_sess);
512 Warning("%s\n", trash.str);
513 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200514 s = s->next;
515 }
516
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200517 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
518 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100519 chunk_printf(&trash,
520 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
521 p->id,
522 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 +0200523 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100524 chunk_printf(&trash,
525 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
526 p->id,
527 (p->srv_bck) ? "is running on backup servers" : "has no server available",
528 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 +0200529 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100530 chunk_printf(&trash,
531 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
532 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
533 p->id, p->srv_act, p->srv_bck,
534 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 +0200535 }
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100536 Warning("%s\n", trash.str);
537 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200538
539 p = p->next;
540 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200541}
542
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200543void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200544{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200545 /* dump memory usage then free everything possible */
546 dump_pools();
547 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200548}
549
Willy Tarreaubaaee002006-06-26 02:48:02 +0200550/*
551 * This function initializes all the necessary variables. It only returns
552 * if everything is OK. If something fails, it exits.
553 */
554void init(int argc, char **argv)
555{
Willy Tarreaubaaee002006-06-26 02:48:02 +0200556 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200557 char *tmp;
558 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200559 int err_code = 0;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100560 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000561 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200562 char *change_dir = NULL;
Yuxans Yao4e25b012012-10-19 10:36:09 +0800563 struct tm curtime;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200564
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100565 chunk_init(&trash, malloc(global.tune.bufsize), global.tune.bufsize);
Willy Tarreau2819e992013-12-13 14:41:10 +0100566 alloc_trash_buffers(global.tune.bufsize);
David du Colombier7af46052012-05-16 14:16:48 +0200567
Emeric Brun2b920a12010-09-23 18:30:22 +0200568 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
569 * the string in case of truncation, and at least FreeBSD appears not to do
570 * it.
571 */
572 memset(hostname, 0, sizeof(hostname));
573 gethostname(hostname, sizeof(hostname) - 1);
574 memset(localpeer, 0, sizeof(localpeer));
575 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
576
Willy Tarreaubaaee002006-06-26 02:48:02 +0200577 /*
578 * Initialize the previously static variables.
579 */
580
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100581 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200582
583
584#ifdef HAPROXY_MEMMAX
585 global.rlimit_memmax = HAPROXY_MEMMAX;
586#endif
587
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200588 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200589 start_date = now;
590
Willy Tarreau84310e22014-02-14 11:59:04 +0100591 srandom(now_ms - getpid());
592
Yuxans Yao4e25b012012-10-19 10:36:09 +0800593 /* Get the numeric timezone. */
594 get_localtime(start_date.tv_sec, &curtime);
595 strftime(localtimezone, 6, "%z", &curtime);
596
Willy Tarreau29857942009-05-10 09:01:21 +0200597 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100598 if (init_acl() != 0)
599 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200600 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +0200601 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200602 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200603 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +0200604 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200605 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100606 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200607
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100608 /* Initialise lua. */
609 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100610
Willy Tarreau43b78992009-01-25 15:42:27 +0100611 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200612#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100613 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200614#endif
615#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100616 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200617#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200618#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100619 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200620#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200621#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100622 global.tune.options |= GTUNE_USE_SPLICE;
623#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200624#if defined(USE_GETADDRINFO)
625 global.tune.options |= GTUNE_USE_GAI;
626#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200627
628 pid = getpid();
629 progname = *argv;
630 while ((tmp = strchr(progname, '/')) != NULL)
631 progname = tmp + 1;
632
Kevinm48936af2010-12-22 16:08:21 +0000633 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +0200634 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +0000635
Willy Tarreaubaaee002006-06-26 02:48:02 +0200636 argc--; argv++;
637 while (argc > 0) {
638 char *flag;
639
640 if (**argv == '-') {
641 flag = *argv+1;
642
643 /* 1 arg */
644 if (*flag == 'v') {
645 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100646 if (flag[1] == 'v') /* -vv */
647 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200648 exit(0);
649 }
650#if defined(ENABLE_EPOLL)
651 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100652 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200653#endif
654#if defined(ENABLE_POLL)
655 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100656 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200657#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200658#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200659 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100660 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200661#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200662#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100663 else if (*flag == 'd' && flag[1] == 'S')
664 global.tune.options &= ~GTUNE_USE_SPLICE;
665#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200666#if defined(USE_GETADDRINFO)
667 else if (*flag == 'd' && flag[1] == 'G')
668 global.tune.options &= ~GTUNE_USE_GAI;
669#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100670 else if (*flag == 'd' && flag[1] == 'V')
671 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200672 else if (*flag == 'V')
673 arg_mode |= MODE_VERBOSE;
674 else if (*flag == 'd' && flag[1] == 'b')
675 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +0200676 else if (*flag == 'd' && flag[1] == 'M')
677 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreaubaaee002006-06-26 02:48:02 +0200678 else if (*flag == 'd')
679 arg_mode |= MODE_DEBUG;
680 else if (*flag == 'c')
681 arg_mode |= MODE_CHECK;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100682 else if (*flag == 'D') {
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200683 arg_mode |= MODE_DAEMON;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100684 if (flag[1] == 's') /* -Ds */
685 arg_mode |= MODE_SYSTEMD;
686 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200687 else if (*flag == 'q')
688 arg_mode |= MODE_QUIET;
689 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
690 /* list of pids to finish ('f') or terminate ('t') */
691
692 if (flag[1] == 'f')
693 oldpids_sig = SIGUSR1; /* finish then exit */
694 else
695 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200696
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200697 while (argc > 1 && argv[1][0] != '-') {
698 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
699 if (!oldpids) {
700 Alert("Cannot allocate old pid : out of memory.\n");
701 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200702 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200703 argc--; argv++;
704 oldpids[nb_oldpids] = atol(*argv);
705 if (oldpids[nb_oldpids] <= 0)
706 usage(progname);
707 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200708 }
709 }
Willy Tarreaua088d312015-10-08 11:58:48 +0200710 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
711 /* now that's a cfgfile list */
712 argv++; argc--;
713 while (argc > 0) {
714 wl = (struct wordlist *)calloc(1, sizeof(*wl));
715 if (!wl) {
716 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
717 exit(1);
718 }
719 wl->s = *argv;
720 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
721 argv++; argc--;
722 }
723 break;
724 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200725 else { /* >=2 args */
726 argv++; argc--;
727 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200728 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200729
730 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200731 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200732 case 'n' : cfg_maxconn = atol(*argv); break;
733 case 'm' : global.rlimit_memmax = atol(*argv); break;
734 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200735 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200736 case 'f' :
Willy Tarreau477ecd82010-01-03 21:12:30 +0100737 wl = (struct wordlist *)calloc(1, sizeof(*wl));
738 if (!wl) {
739 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200740 exit(1);
741 }
Willy Tarreau477ecd82010-01-03 21:12:30 +0100742 wl->s = *argv;
743 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200744 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200745 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200746 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200747 }
748 }
749 }
750 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200751 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200752 argv++; argc--;
753 }
754
755 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100756 (arg_mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_FOREGROUND | MODE_VERBOSE
Willy Tarreaubaaee002006-06-26 02:48:02 +0200757 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
758
Willy Tarreau477ecd82010-01-03 21:12:30 +0100759 if (LIST_ISEMPTY(&cfg_cfgfiles))
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200760 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200761
Willy Tarreau576132e2011-09-10 19:26:56 +0200762 if (change_dir && chdir(change_dir) < 0) {
763 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
764 exit(1);
765 }
766
Willy Tarreaubaaee002006-06-26 02:48:02 +0200767 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200768
769 init_default_instance();
770
Willy Tarreau477ecd82010-01-03 21:12:30 +0100771 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100772 int ret;
773
Willy Tarreau477ecd82010-01-03 21:12:30 +0100774 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100775 if (ret == -1) {
776 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100777 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100778 exit(1);
779 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100780 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100781 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100782 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200783 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200784 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200785 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200786
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100787 pattern_finalize_config();
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +0200788#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
789 tlskeys_finalize_config();
790#endif
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100791
Willy Tarreaubb925012009-07-23 13:36:36 +0200792 err_code |= check_config_validity();
793 if (err_code & (ERR_ABORT|ERR_FATAL)) {
794 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200795 exit(1);
796 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200797
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100798#ifdef CONFIG_HAP_NS
799 err_code |= netns_init();
800 if (err_code & (ERR_ABORT|ERR_FATAL)) {
801 Alert("Failed to initialize namespace support.\n");
802 exit(1);
803 }
804#endif
805
Willy Tarreaubaaee002006-06-26 02:48:02 +0200806 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100807 struct peers *pr;
808 struct proxy *px;
809
810 for (pr = peers; pr; pr = pr->next)
811 if (pr->peers_fe)
812 break;
813
814 for (px = proxy; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +0200815 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100816 break;
817
818 if (pr || px) {
819 /* At least one peer or one listener has been found */
820 qfprintf(stdout, "Configuration file is valid\n");
821 exit(0);
822 }
823 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
824 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200825 }
826
Baptiste Assmannfecd2b52015-08-14 16:20:52 +0200827 /* Apply server states */
828 apply_server_state();
829
Willy Tarreaue9b26022011-08-01 20:57:55 +0200830 global_listener_queue_task = task_new();
831 if (!global_listener_queue_task) {
832 Alert("Out of memory when initializing global task\n");
833 exit(1);
834 }
835 /* very simple initialization, users will queue the task if needed */
836 global_listener_queue_task->context = NULL; /* not even a context! */
837 global_listener_queue_task->process = manage_global_listener_queue;
838 global_listener_queue_task->expire = TICK_ETERNITY;
839
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200840 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200841 init_buffer();
David Carlier4a026412015-06-01 13:57:22 +0200842#if defined(USE_DEVICEATLAS)
843 init_deviceatlas();
844#endif
Dragan Dosen93b38d92015-06-29 16:43:25 +0200845#ifdef USE_51DEGREES
846 init_51degrees();
847#endif
Willy Tarreau8280d642009-09-23 23:37:52 +0200848
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200849 if (start_checks() < 0)
850 exit(1);
851
Willy Tarreaubaaee002006-06-26 02:48:02 +0200852 if (cfg_maxconn > 0)
853 global.maxconn = cfg_maxconn;
854
855 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200856 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200857 global.pidfile = strdup(cfg_pidfile);
858 }
859
Willy Tarreaud0256482015-01-15 21:45:22 +0100860 /* Now we want to compute the maxconn and possibly maxsslconn values.
861 * It's a bit tricky. If memmax is not set, maxconn defaults to
862 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
863 *
864 * If memmax is set, then it depends on which values are set. If
865 * maxsslconn is set, we use memmax to determine how many cleartext
866 * connections may be added, and set maxconn to the sum of the two.
867 * If maxconn is set and not maxsslconn, maxsslconn is computed from
868 * the remaining amount of memory between memmax and the cleartext
869 * connections. If neither are set, then it is considered that all
870 * connections are SSL-capable, and maxconn is computed based on this,
871 * then maxsslconn accordingly. We need to know if SSL is used on the
872 * frontends, backends, or both, because when it's used on both sides,
873 * we need twice the value for maxsslconn, but we only count the
874 * handshake once since it is not performed on the two sides at the
875 * same time (frontend-side is terminated before backend-side begins).
876 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +0100877 * ssl_handshake_cost during its initialization. In any case, if
878 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
879 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +0100880 */
881 if (!global.rlimit_memmax) {
882 if (global.maxconn == 0) {
883 global.maxconn = DEFAULT_MAXCONN;
884 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
885 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
886 }
887 }
888#ifdef USE_OPENSSL
889 else if (!global.maxconn && !global.maxsslconn &&
890 (global.ssl_used_frontend || global.ssl_used_backend)) {
891 /* memmax is set, compute everything automatically. Here we want
892 * to ensure that all SSL connections will be served. We take
893 * care of the number of sides where SSL is used, and consider
894 * the worst case : SSL used on both sides and doing a handshake
895 * simultaneously. Note that we can't have more than maxconn
896 * handshakes at a time by definition, so for the worst case of
897 * two SSL conns per connection, we count a single handshake.
898 */
899 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
900 int64_t mem = global.rlimit_memmax * 1048576ULL;
901
902 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
903 mem -= global.maxzlibmem;
904 mem = mem * MEM_USABLE_RATIO;
905
906 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +0200907 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +0100908 sides * global.ssl_session_max_cost + // SSL buffers, one per side
909 global.ssl_handshake_max_cost); // 1 handshake per connection max
910
911 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +0100912#ifdef SYSTEM_MAXCONN
913 if (global.maxconn > DEFAULT_MAXCONN)
914 global.maxconn = DEFAULT_MAXCONN;
915#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +0100916 global.maxsslconn = sides * global.maxconn;
917 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
918 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
919 global.maxconn, global.maxsslconn);
920 }
921 else if (!global.maxsslconn &&
922 (global.ssl_used_frontend || global.ssl_used_backend)) {
923 /* memmax and maxconn are known, compute maxsslconn automatically.
924 * maxsslconn being forced, we don't know how many of it will be
925 * on each side if both sides are being used. The worst case is
926 * when all connections use only one SSL instance because
927 * handshakes may be on two sides at the same time.
928 */
929 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
930 int64_t mem = global.rlimit_memmax * 1048576ULL;
931 int64_t sslmem;
932
933 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
934 mem -= global.maxzlibmem;
935 mem = mem * MEM_USABLE_RATIO;
936
Willy Tarreau87b09662015-04-03 00:22:06 +0200937 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +0100938 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
939 global.maxsslconn = round_2dig(global.maxsslconn);
940
941 if (sslmem <= 0 || global.maxsslconn < sides) {
942 Alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
943 "high for the global.memmax value (%d MB). The absolute maximum possible value "
944 "without SSL is %d, but %d was found and SSL is in use.\n",
945 global.rlimit_memmax,
Willy Tarreau87b09662015-04-03 00:22:06 +0200946 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
Willy Tarreaud0256482015-01-15 21:45:22 +0100947 global.maxconn);
948 exit(1);
949 }
950
951 if (global.maxsslconn > sides * global.maxconn)
952 global.maxsslconn = sides * global.maxconn;
953
954 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
955 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
956 }
957#endif
958 else if (!global.maxconn) {
959 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
960 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
961 int64_t mem = global.rlimit_memmax * 1048576ULL;
962 int64_t clearmem;
963
964 if (global.ssl_used_frontend || global.ssl_used_backend)
965 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
966
967 mem -= global.maxzlibmem;
968 mem = mem * MEM_USABLE_RATIO;
969
970 clearmem = mem;
971 if (sides)
972 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
973
Willy Tarreau87b09662015-04-03 00:22:06 +0200974 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +0100975 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +0100976#ifdef SYSTEM_MAXCONN
977 if (global.maxconn > DEFAULT_MAXCONN)
978 global.maxconn = DEFAULT_MAXCONN;
979#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +0100980
981 if (clearmem <= 0 || !global.maxconn) {
982 Alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
983 "high for the global.memmax value (%d MB). The absolute maximum possible value "
984 "is %d, but %d was found.\n",
985 global.rlimit_memmax,
986 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
987 global.maxsslconn);
988 exit(1);
989 }
990
991 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
992 if (sides && global.maxsslconn > sides * global.maxconn) {
993 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
994 "to be limited to %d. Better reduce global.maxsslconn to get more "
995 "room for extra connections.\n", global.maxsslconn, global.maxconn);
996 }
997 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
998 }
999 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001000
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001001 if (!global.maxpipes) {
1002 /* maxpipes not specified. Count how many frontends and backends
1003 * may be using splicing, and bound that to maxconn.
1004 */
1005 struct proxy *cur;
1006 int nbfe = 0, nbbe = 0;
1007
1008 for (cur = proxy; cur; cur = cur->next) {
1009 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
1010 if (cur->cap & PR_CAP_FE)
1011 nbfe += cur->maxconn;
1012 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +01001013 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001014 }
1015 }
1016 global.maxpipes = MAX(nbfe, nbbe);
1017 if (global.maxpipes > global.maxconn)
1018 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +01001019 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001020 }
1021
1022
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001023 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001024 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01001025 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001026
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001027 if (global.stats_fe)
1028 global.maxsock += global.stats_fe->maxconn;
1029
1030 if (peers) {
1031 /* peers also need to bypass global maxconn */
1032 struct peers *p = peers;
1033
1034 for (p = peers; p; p = p->next)
1035 if (p->peers_fe)
1036 global.maxsock += p->peers_fe->maxconn;
1037 }
1038
Willy Tarreau1db37712007-06-03 17:16:49 +02001039 if (global.tune.maxpollevents <= 0)
1040 global.tune.maxpollevents = MAX_POLL_EVENTS;
1041
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01001042 if (global.tune.recv_enough == 0)
1043 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
1044
Willy Tarreau27097842015-09-28 13:53:23 +02001045 if (global.tune.maxrewrite < 0)
1046 global.tune.maxrewrite = MAXREWRITE;
1047
Willy Tarreau27a674e2009-08-17 07:23:33 +02001048 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
1049 global.tune.maxrewrite = global.tune.bufsize / 2;
1050
Willy Tarreaubaaee002006-06-26 02:48:02 +02001051 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
1052 /* command line debug mode inhibits configuration mode */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001053 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001054 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
1055 }
1056
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001057 if (arg_mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001058 /* command line daemon mode inhibits foreground and debug modes mode */
1059 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001060 global.mode |= (arg_mode & (MODE_DAEMON | MODE_SYSTEMD));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001061 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001062
1063 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001064
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001065 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET))) {
1066 Warning("<debug> mode incompatible with <quiet>, <daemon> and <systemd>. Keeping <debug> only.\n");
1067 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001068 }
1069
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001070 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_SYSTEMD))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001071 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
1072 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
1073 global.nbproc = 1;
1074 }
1075
1076 if (global.nbproc < 1)
1077 global.nbproc = 1;
1078
Willy Tarreau8096de92010-02-26 11:12:27 +01001079 swap_buffer = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau7e2c6472012-10-29 20:44:36 +01001080 get_http_auth_buff = (char *)calloc(1, global.tune.bufsize);
Thierry FOURNIER7e25df32015-07-24 19:31:59 +02001081 static_table_key = calloc(1, sizeof(*static_table_key));
Willy Tarreau8096de92010-02-26 11:12:27 +01001082
Willy Tarreau8d5d77e2009-10-18 07:25:52 +02001083 fdinfo = (struct fdinfo *)calloc(1,
1084 sizeof(struct fdinfo) * (global.maxsock));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001085 fdtab = (struct fdtab *)calloc(1,
1086 sizeof(struct fdtab) * (global.maxsock));
Willy Tarreauef1d1f82007-04-16 00:25:25 +02001087 /*
1088 * Note: we could register external pollers here.
1089 * Built-in pollers have been registered before main().
1090 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001091
Willy Tarreau43b78992009-01-25 15:42:27 +01001092 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001093 disable_poller("kqueue");
1094
Willy Tarreau43b78992009-01-25 15:42:27 +01001095 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001096 disable_poller("epoll");
1097
Willy Tarreau43b78992009-01-25 15:42:27 +01001098 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001099 disable_poller("poll");
1100
Willy Tarreau43b78992009-01-25 15:42:27 +01001101 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001102 disable_poller("select");
1103
1104 /* Note: we could disable any poller by name here */
1105
Willy Tarreau2ff76222007-04-09 19:29:56 +02001106 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1107 list_pollers(stderr);
1108
Willy Tarreau4f60f162007-04-08 16:39:58 +02001109 if (!init_pollers()) {
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001110 Alert("No polling mechanism available.\n"
1111 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
1112 " is too low on this platform to support maxconn and the number of listeners\n"
1113 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
1114 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
Prach Pongpanichb837e682013-05-14 20:56:28 +02001115 " global maxconn setting to accommodate the system's limitation. For reference,\n"
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001116 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
1117 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
1118 " check build settings using 'haproxy -vv'.\n\n",
1119 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001120 exit(1);
1121 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001122 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1123 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001124 }
1125
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001126 if (!global.node)
1127 global.node = strdup(hostname);
1128
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01001129 if (!hlua_post_init())
1130 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01001131
Baptiste Assmann325137d2015-04-13 23:40:55 +02001132 /* initialize structures for name resolution */
1133 if (!dns_init_resolvers())
1134 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001135}
1136
Simon Horman6fb82592011-07-15 13:14:11 +09001137static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09001138{
Simon Hormanac821422011-07-15 13:14:09 +09001139 struct acl_term_suite *suite, *suiteb;
1140 struct acl_term *term, *termb;
1141
Simon Horman6fb82592011-07-15 13:14:11 +09001142 if (!cond)
1143 return;
1144
1145 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
1146 list_for_each_entry_safe(term, termb, &suite->terms, list) {
1147 LIST_DEL(&term->list);
1148 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09001149 }
Simon Horman6fb82592011-07-15 13:14:11 +09001150 LIST_DEL(&suite->list);
1151 free(suite);
1152 }
1153
1154 free(cond);
1155}
1156
1157static void deinit_tcp_rules(struct list *rules)
1158{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02001159 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09001160
1161 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09001162 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09001163 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09001164 free(trule);
1165 }
1166}
1167
Willy Tarreau12785782012-04-27 21:37:17 +02001168static void deinit_sample_arg(struct arg *p)
Simon Horman6fb82592011-07-15 13:14:11 +09001169{
Willy Tarreauf9954102012-04-20 14:03:29 +02001170 struct arg *p_back = p;
1171
Simon Horman6fb82592011-07-15 13:14:11 +09001172 if (!p)
1173 return;
1174
Willy Tarreauf9954102012-04-20 14:03:29 +02001175 while (p->type != ARGT_STOP) {
Willy Tarreau496aa012012-06-01 10:38:29 +02001176 if (p->type == ARGT_STR || p->unresolved) {
Willy Tarreauf9954102012-04-20 14:03:29 +02001177 free(p->data.str.str);
1178 p->data.str.str = NULL;
Willy Tarreau496aa012012-06-01 10:38:29 +02001179 p->unresolved = 0;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001180 }
Willy Tarreau46947782015-01-19 19:00:58 +01001181 else if (p->type == ARGT_REG) {
1182 if (p->data.reg) {
1183 regex_free(p->data.reg);
1184 free(p->data.reg);
1185 p->data.reg = NULL;
1186 }
1187 }
Willy Tarreauf9954102012-04-20 14:03:29 +02001188 p++;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001189 }
Simon Horman6fb82592011-07-15 13:14:11 +09001190
Willy Tarreau2e845be2012-10-19 19:49:09 +02001191 if (p_back != empty_arg_list)
1192 free(p_back);
Simon Horman6fb82592011-07-15 13:14:11 +09001193}
1194
1195static void deinit_stick_rules(struct list *rules)
1196{
1197 struct sticking_rule *rule, *ruleb;
1198
1199 list_for_each_entry_safe(rule, ruleb, rules, list) {
1200 LIST_DEL(&rule->list);
1201 deinit_acl_cond(rule->cond);
1202 if (rule->expr) {
Willy Tarreau12785782012-04-27 21:37:17 +02001203 struct sample_conv_expr *conv_expr, *conv_exprb;
Simon Horman6fb82592011-07-15 13:14:11 +09001204 list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list)
Willy Tarreau12785782012-04-27 21:37:17 +02001205 deinit_sample_arg(conv_expr->arg_p);
1206 deinit_sample_arg(rule->expr->arg_p);
Simon Horman6fb82592011-07-15 13:14:11 +09001207 free(rule->expr);
1208 }
1209 free(rule);
1210 }
1211}
1212
Willy Tarreaubaaee002006-06-26 02:48:02 +02001213void deinit(void)
1214{
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001215 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001216 struct cap_hdr *h,*h_next;
1217 struct server *s,*s_next;
1218 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001219 struct acl_cond *cond, *condb;
1220 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001221 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001222 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001223 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001224 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001225 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01001226 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001227 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02001228 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01001229 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001230 struct bind_conf *bind_conf, *bind_back;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001231 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001232
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001233 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001234 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02001235 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001236 free(p->id);
1237 free(p->check_req);
1238 free(p->cookie_name);
1239 free(p->cookie_domain);
1240 free(p->url_param_name);
1241 free(p->capture_name);
1242 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09001243 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02001244 if (p->conf.logformat_string != default_http_log_format &&
1245 p->conf.logformat_string != default_tcp_log_format &&
1246 p->conf.logformat_string != clf_http_log_format)
1247 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02001248
Willy Tarreau62a61232013-04-12 18:13:46 +02001249 free(p->conf.lfs_file);
1250 free(p->conf.uniqueid_format_string);
1251 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08001252 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001253
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001254 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1255 free(p->conf.logformat_sd_string);
1256 free(p->conf.lfsd_file);
1257
Willy Tarreaua534fea2008-08-03 12:19:50 +02001258 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02001259 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001260
Willy Tarreauf4f04122010-01-28 18:10:50 +01001261 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
1262 LIST_DEL(&cwl->list);
1263 free(cwl->s);
1264 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001265 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001266
Willy Tarreauf4f04122010-01-28 18:10:50 +01001267 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
1268 LIST_DEL(&cwl->list);
1269 free(cwl->s);
1270 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001271 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001272
Willy Tarreaub80c2302007-11-30 20:51:32 +01001273 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
1274 LIST_DEL(&cond->list);
1275 prune_acl_cond(cond);
1276 free(cond);
1277 }
1278
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001279 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001280 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001281 regex_free(exp->preg);
1282 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001283 }
1284
Willy Tarreau98d04852015-05-26 12:18:29 +02001285 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001286 expb = exp;
1287 exp = exp->next;
1288 free(expb);
1289 }
1290
1291 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001292 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001293 regex_free(exp->preg);
1294 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001295 }
1296
Willy Tarreau98d04852015-05-26 12:18:29 +02001297 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001298 expb = exp;
1299 exp = exp->next;
1300 free(expb);
1301 }
1302
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001303 /* build a list of unique uri_auths */
1304 if (!ua)
1305 ua = p->uri_auth;
1306 else {
1307 /* check if p->uri_auth is unique */
1308 for (uap = ua; uap; uap=uap->next)
1309 if (uap == p->uri_auth)
1310 break;
1311
Willy Tarreauaccc4e12008-06-24 11:14:45 +02001312 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001313 /* add it, if it is */
1314 p->uri_auth->next = ua;
1315 ua = p->uri_auth;
1316 }
1317 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001318
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001319 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
1320 LIST_DEL(&acl->list);
1321 prune_acl(acl);
1322 free(acl);
1323 }
1324
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001325 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
1326 LIST_DEL(&srule->list);
1327 prune_acl_cond(srule->cond);
1328 free(srule->cond);
1329 free(srule);
1330 }
1331
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001332 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
1333 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001334 if (rule->cond) {
1335 prune_acl_cond(rule->cond);
1336 free(rule->cond);
1337 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001338 free(rule);
1339 }
1340
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001341 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
1342 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01001343 if (rdr->cond) {
1344 prune_acl_cond(rdr->cond);
1345 free(rdr->cond);
1346 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001347 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01001348 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
1349 LIST_DEL(&lf->list);
1350 free(lf);
1351 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001352 free(rdr);
1353 }
1354
William Lallemand0f99e342011-10-12 17:50:54 +02001355 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
1356 LIST_DEL(&log->list);
1357 free(log);
1358 }
1359
William Lallemand723b73a2012-02-08 16:37:49 +01001360 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
1361 LIST_DEL(&lf->list);
1362 free(lf);
1363 }
1364
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001365 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
1366 LIST_DEL(&lf->list);
1367 free(lf);
1368 }
1369
Simon Hormanac821422011-07-15 13:14:09 +09001370 deinit_tcp_rules(&p->tcp_req.inspect_rules);
1371 deinit_tcp_rules(&p->tcp_req.l4_rules);
1372
Simon Horman6fb82592011-07-15 13:14:11 +09001373 deinit_stick_rules(&p->storersp_rules);
1374 deinit_stick_rules(&p->sticking_rules);
1375
Willy Tarreaubaaee002006-06-26 02:48:02 +02001376 h = p->req_cap;
1377 while (h) {
1378 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001379 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001380 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001381 free(h);
1382 h = h_next;
1383 }/* end while(h) */
1384
1385 h = p->rsp_cap;
1386 while (h) {
1387 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001388 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001389 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001390 free(h);
1391 h = h_next;
1392 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001393
Willy Tarreaubaaee002006-06-26 02:48:02 +02001394 s = p->srv;
1395 while (s) {
1396 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001397
Willy Tarreau5b3a2022012-09-28 15:01:02 +02001398 if (s->check.task) {
1399 task_delete(s->check.task);
1400 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001401 }
Simon Hormand60d6912013-11-25 10:46:36 +09001402 if (s->agent.task) {
1403 task_delete(s->agent.task);
1404 task_free(s->agent.task);
1405 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001406
Willy Tarreau2e993902011-10-31 11:53:20 +01001407 if (s->warmup) {
1408 task_delete(s->warmup);
1409 task_free(s->warmup);
1410 }
1411
Willy Tarreaua534fea2008-08-03 12:19:50 +02001412 free(s->id);
1413 free(s->cookie);
Willy Tarreau1ae1b7b2012-09-28 15:28:30 +02001414 free(s->check.bi);
1415 free(s->check.bo);
Simon Hormand60d6912013-11-25 10:46:36 +09001416 free(s->agent.bi);
1417 free(s->agent.bo);
James Brown55f9ff12015-10-21 18:19:05 -07001418 free(s->agent.send_string);
Sárközi, László34c01792014-09-05 10:08:23 +02001419 free((char*)s->conf.file);
Christopher Faulet77fe80c2015-07-29 13:02:40 +02001420#ifdef USE_OPENSSL
1421 if (s->use_ssl || s->check.use_ssl)
1422 ssl_sock_free_srv_ctx(s);
1423#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001424 free(s);
1425 s = s_next;
1426 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001427
Willy Tarreau4348fad2012-09-20 16:48:07 +02001428 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02001429 unbind_listener(l);
1430 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001431 LIST_DEL(&l->by_fe);
1432 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001433 free(l->name);
1434 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001435 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001436 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001437
Willy Tarreau4348fad2012-09-20 16:48:07 +02001438 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001439 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
1440#ifdef USE_OPENSSL
Christopher Faulet31af49d2015-06-09 17:29:50 +02001441 ssl_sock_free_ca(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001442 ssl_sock_free_all_ctx(bind_conf);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001443 free(bind_conf->ca_file);
Christopher Faulet31af49d2015-06-09 17:29:50 +02001444 free(bind_conf->ca_sign_file);
1445 free(bind_conf->ca_sign_pass);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001446 free(bind_conf->ciphers);
Emeric Brun2b58d042012-09-20 17:10:03 +02001447 free(bind_conf->ecdhe);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001448 free(bind_conf->crl_file);
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001449#endif /* USE_OPENSSL */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001450 free(bind_conf->file);
1451 free(bind_conf->arg);
1452 LIST_DEL(&bind_conf->by_fe);
1453 free(bind_conf);
1454 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001455
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001456 free(p->desc);
1457 free(p->fwdfor_hdr_name);
1458
Willy Tarreauff011f22011-01-06 17:51:27 +01001459 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06001460 free_http_res_rules(&p->http_res_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02001461 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01001462
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001463 pool_destroy2(p->req_cap_pool);
1464 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09001465 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001466
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001467 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001468 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001469 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001470 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02001471
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001472 while (ua) {
1473 uap = ua;
1474 ua = ua->next;
1475
Willy Tarreaua534fea2008-08-03 12:19:50 +02001476 free(uap->uri_prefix);
1477 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001478 free(uap->node);
1479 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001480
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001481 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001482 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001483
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001484 free(uap);
1485 }
1486
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001487 userlist_free(userlist);
1488
David Carlier834cb2e2015-09-25 12:02:25 +01001489 cfg_unregister_sections();
1490
1491 free_trash_buffers();
1492 chunk_destroy(&trash);
1493
Willy Tarreaudd815982007-10-16 12:25:14 +02001494 protocol_unbind_all();
1495
David Carlier4a026412015-06-01 13:57:22 +02001496#if defined(USE_DEVICEATLAS)
1497 deinit_deviceatlas();
1498#endif
1499
Thomas Holmes5ed33ee2015-05-14 17:14:30 +01001500#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +02001501 deinit_51degrees();
Thomas Holmes4d441a72015-05-29 12:54:25 +01001502#endif
Thomas Holmes5ed33ee2015-05-14 17:14:30 +01001503
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001504 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02001505 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001506 free(global.chroot); global.chroot = NULL;
1507 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001508 free(global.node); global.node = NULL;
1509 free(global.desc); global.desc = NULL;
Godbach4cc1b0d2013-06-26 16:49:51 +08001510 free(fdinfo); fdinfo = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001511 free(fdtab); fdtab = NULL;
1512 free(oldpids); oldpids = NULL;
David Carlier834cb2e2015-09-25 12:02:25 +01001513 free(static_table_key); static_table_key = NULL;
1514 free(get_http_auth_buff); get_http_auth_buff = NULL;
1515 free(swap_buffer); swap_buffer = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001516 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001517
William Lallemand0f99e342011-10-12 17:50:54 +02001518 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1519 LIST_DEL(&log->list);
1520 free(log);
1521 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001522 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1523 LIST_DEL(&wl->list);
1524 free(wl);
1525 }
1526
Willy Tarreau87b09662015-04-03 00:22:06 +02001527 pool_destroy2(pool2_stream);
Willy Tarreaufeb76402015-04-03 14:10:06 +02001528 pool_destroy2(pool2_session);
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001529 pool_destroy2(pool2_connection);
Willy Tarreau9b28e032012-10-12 23:49:43 +02001530 pool_destroy2(pool2_buffer);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001531 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001532 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001533 pool_destroy2(pool2_capture);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001534 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001535 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001536 pool_destroy2(pool2_hdr_idx);
Willy Tarreau63986c72015-04-03 22:55:33 +02001537 pool_destroy2(pool2_http_txn);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001538
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001539 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001540} /* end deinit() */
1541
Willy Tarreaubb545b42010-08-25 12:58:59 +02001542/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1543 * pids the signal was correctly delivered to.
1544 */
1545static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001546{
1547 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001548 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001549 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001550 if (kill(oldpids[p], sig) == 0)
1551 ret++;
1552 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001553}
1554
Willy Tarreau918ff602011-07-25 16:33:49 +02001555/* Runs the polling loop */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001556void run_poll_loop()
1557{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001558 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001559
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001560 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001561 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001562 /* Process a few tasks */
1563 process_runnable_tasks();
1564
Willy Tarreau29857942009-05-10 09:01:21 +02001565 /* check if we caught some signals and process them */
1566 signal_process_queue();
1567
Willy Tarreau58b458d2008-06-29 22:40:23 +02001568 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001569 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001570
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001571 /* stop when there's nothing left to do */
1572 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001573 break;
1574
Willy Tarreau10146c92015-04-13 20:44:19 +02001575 /* expire immediately if events are pending */
Willy Tarreau64bca9d2015-09-25 17:39:23 +02001576 if (fd_cache_num || run_queue || signal_queue_len || !LIST_ISEMPTY(&applet_active_queue))
Willy Tarreau10146c92015-04-13 20:44:19 +02001577 next = now_ms;
1578
Willy Tarreau58b458d2008-06-29 22:40:23 +02001579 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001580 cur_poller.poll(&cur_poller, next);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01001581 fd_process_cached_events();
Willy Tarreau3c595ac2015-04-19 09:59:31 +02001582 applet_run_active();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001583 }
1584}
1585
Willy Tarreaue9b26022011-08-01 20:57:55 +02001586/* This is the global management task for listeners. It enables listeners waiting
1587 * for global resources when there are enough free resource, or at least once in
1588 * a while. It is designed to be called as a task.
1589 */
1590static struct task *manage_global_listener_queue(struct task *t)
1591{
1592 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001593 /* queue is empty, nothing to do */
1594 if (LIST_ISEMPTY(&global_listener_queue))
1595 goto out;
1596
1597 /* If there are still too many concurrent connections, let's wait for
1598 * some of them to go away. We don't need to re-arm the timer because
1599 * each of them will scan the queue anyway.
1600 */
1601 if (unlikely(actconn >= global.maxconn))
1602 goto out;
1603
1604 /* We should periodically try to enable listeners waiting for a global
1605 * resource here, because it is possible, though very unlikely, that
1606 * they have been blocked by a temporary lack of global resource such
1607 * as a file descriptor or memory and that the temporary condition has
1608 * disappeared.
1609 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001610 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001611
1612 out:
1613 t->expire = next;
1614 task_queue(t);
1615 return t;
1616}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001617
Willy Tarreaubaaee002006-06-26 02:48:02 +02001618int main(int argc, char **argv)
1619{
1620 int err, retry;
1621 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001622 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02001623 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001624
Emeric Bruncf20bf12010-10-22 16:06:11 +02001625 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001626 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1627 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1628 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001629
Willy Tarreaue437c442010-03-17 18:02:46 +01001630 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1631 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1632 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001633 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001634 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001635
Willy Tarreaudc23a922011-02-16 11:10:36 +01001636 /* ulimits */
1637 if (!global.rlimit_nofile)
1638 global.rlimit_nofile = global.maxsock;
1639
1640 if (global.rlimit_nofile) {
1641 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1642 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
1643 Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile);
1644 }
1645 }
1646
1647 if (global.rlimit_memmax) {
1648 limit.rlim_cur = limit.rlim_max =
Willy Tarreauf2dd5e42015-10-29 10:42:55 +01001649 global.rlimit_memmax * 1048576ULL / global.nbproc;
Willy Tarreaudc23a922011-02-16 11:10:36 +01001650#ifdef RLIMIT_AS
1651 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1652 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1653 argv[0], global.rlimit_memmax);
1654 }
1655#else
1656 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1657 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1658 argv[0], global.rlimit_memmax);
1659 }
1660#endif
1661 }
1662
Willy Tarreaubaaee002006-06-26 02:48:02 +02001663 /* We will loop at most 100 times with 10 ms delay each time.
1664 * That's at most 1 second. We only send a signal to old pids
1665 * if we cannot grab at least one port.
1666 */
1667 retry = MAX_START_RETRIES;
1668 err = ERR_NONE;
1669 while (retry >= 0) {
1670 struct timeval w;
1671 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001672 /* exit the loop on no error or fatal error */
1673 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001674 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001675 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001676 break;
1677
1678 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1679 * listening sockets. So on those platforms, it would be wiser to
1680 * simply send SIGUSR1, which will not be undoable.
1681 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001682 if (tell_old_pids(SIGTTOU) == 0) {
1683 /* no need to wait if we can't contact old pids */
1684 retry = 0;
1685 continue;
1686 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001687 /* give some time to old processes to stop listening */
1688 w.tv_sec = 0;
1689 w.tv_usec = 10*1000;
1690 select(0, NULL, NULL, NULL, &w);
1691 retry--;
1692 }
1693
1694 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001695 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001696 if (retry != MAX_START_RETRIES && nb_oldpids) {
1697 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001698 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001699 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001700 exit(1);
1701 }
1702
1703 if (listeners == 0) {
Willy Tarreauf2ee0162015-08-09 11:01:51 +02001704 Alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001705 /* Note: we don't have to send anything to the old pids because we
1706 * never stopped them. */
1707 exit(1);
1708 }
1709
Emeric Bruncf20bf12010-10-22 16:06:11 +02001710 err = protocol_bind_all(errmsg, sizeof(errmsg));
1711 if ((err & ~ERR_WARN) != ERR_NONE) {
1712 if ((err & ERR_ALERT) || (err & ERR_WARN))
1713 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1714
Willy Tarreaudd815982007-10-16 12:25:14 +02001715 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1716 protocol_unbind_all(); /* cleanup everything we can */
1717 if (nb_oldpids)
1718 tell_old_pids(SIGTTIN);
1719 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001720 } else if (err & ERR_WARN) {
1721 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001722 }
1723
Willy Tarreaubaaee002006-06-26 02:48:02 +02001724 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001725 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1726 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001727
Willy Tarreaubaaee002006-06-26 02:48:02 +02001728 /* MODE_QUIET can inhibit alerts and warnings below this line */
1729
1730 global.mode &= ~MODE_STARTING;
1731 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1732 /* detach from the tty */
1733 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001734 }
1735
1736 /* open log & pid files before the chroot */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001737 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001738 unlink(global.pidfile);
1739 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1740 if (pidfd < 0) {
1741 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1742 if (nb_oldpids)
1743 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001744 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001745 exit(1);
1746 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001747 }
1748
Willy Tarreaub38651a2007-03-24 17:24:39 +01001749 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1750 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001751 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001752 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001753 exit(1);
1754 }
1755
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001756 /* If the user is not root, we'll still let him try the configuration
1757 * but we inform him that unexpected behaviour may occur.
1758 */
1759 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1760 Warning("[%s.main()] Some options which require full privileges"
1761 " might not work well.\n"
1762 "", argv[0]);
1763
Willy Tarreauf223cc02007-10-15 18:57:08 +02001764 /* chroot if needed */
1765 if (global.chroot != NULL) {
Willy Tarreau21337822012-04-29 14:11:38 +02001766 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Willy Tarreauf223cc02007-10-15 18:57:08 +02001767 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1768 if (nb_oldpids)
1769 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001770 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001771 exit(1);
1772 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02001773 }
1774
Willy Tarreaubaaee002006-06-26 02:48:02 +02001775 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001776 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001777
1778 /* Note that any error at this stage will be fatal because we will not
1779 * be able to restart the old pids.
1780 */
1781
1782 /* setgid / setuid */
Michael Schererab012dd2013-01-12 18:35:19 +01001783 if (global.gid) {
1784 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
1785 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
1786 " without 'uid'/'user' is generally useless.\n", argv[0]);
1787
1788 if (setgid(global.gid) == -1) {
1789 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
1790 protocol_unbind_all();
1791 exit(1);
1792 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001793 }
1794
1795 if (global.uid && setuid(global.uid) == -1) {
1796 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001797 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001798 exit(1);
1799 }
1800
1801 /* check ulimits */
1802 limit.rlim_cur = limit.rlim_max = 0;
1803 getrlimit(RLIMIT_NOFILE, &limit);
1804 if (limit.rlim_cur < global.maxsock) {
1805 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 +02001806 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001807 }
1808
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001809 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001810 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001811 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001812 int ret = 0;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001813 int *children = calloc(global.nbproc, sizeof(int));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001814 int proc;
1815
1816 /* the father launches the required number of processes */
1817 for (proc = 0; proc < global.nbproc; proc++) {
1818 ret = fork();
1819 if (ret < 0) {
1820 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001821 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001822 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001823 }
1824 else if (ret == 0) /* child breaks here */
1825 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001826 children[proc] = ret;
Willy Tarreau269ab312012-09-05 08:02:48 +02001827 if (pidfd >= 0) {
1828 char pidstr[100];
1829 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01001830 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001831 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001832 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001833 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001834
1835#ifdef USE_CPU_AFFINITY
1836 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02001837 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001838 global.cpu_map[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02001839#ifdef __FreeBSD__
1840 cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1841#else
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001842 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1843#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02001844#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001845 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02001846 if (pidfd >= 0) {
1847 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
1848 close(pidfd);
1849 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02001850
1851 /* We won't ever use this anymore */
1852 free(oldpids); oldpids = NULL;
1853 free(global.chroot); global.chroot = NULL;
1854 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001855
Willy Tarreauedaff0a2015-05-01 17:01:08 +02001856 if (proc == global.nbproc) {
1857 if (global.mode & MODE_SYSTEMD) {
1858 protocol_unbind_all();
1859 for (proc = 0; proc < global.nbproc; proc++)
1860 while (waitpid(children[proc], NULL, 0) == -1 && errno == EINTR);
1861 }
1862 exit(0); /* parent must leave */
1863 }
1864
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001865 /* we might have to unbind some proxies from some processes */
1866 px = proxy;
1867 while (px != NULL) {
1868 if (px->bind_proc && px->state != PR_STSTOPPED) {
Willy Tarreaua9db57e2013-01-18 11:29:29 +01001869 if (!(px->bind_proc & (1UL << proc)))
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001870 stop_proxy(px);
1871 }
1872 px = px->next;
1873 }
1874
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001875 /* we might have to unbind some peers sections from some processes */
1876 for (curpeers = peers; curpeers; curpeers = curpeers->next) {
1877 if (!curpeers->peers_fe)
1878 continue;
1879
1880 if (curpeers->peers_fe->bind_proc & (1UL << proc))
1881 continue;
1882
1883 stop_proxy(curpeers->peers_fe);
1884 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02001885 signal_unregister_handler(curpeers->sighandler);
1886 task_delete(curpeers->sync_task);
1887 task_free(curpeers->sync_task);
1888 curpeers->sync_task = NULL;
1889 task_free(curpeers->peers_fe->task);
1890 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001891 curpeers->peers_fe = NULL;
1892 }
1893
Dirkjan Bussink07fcaaa2014-04-28 22:57:16 +00001894 free(children);
1895 children = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001896 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
1897 * that we can detach from the TTY. We MUST NOT do it in other cases since
1898 * it would have already be done, and 0-2 would have been affected to listening
1899 * sockets
1900 */
Willy Tarreau106cb762008-11-16 07:40:34 +01001901 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001902 /* detach from the tty */
1903 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01001904 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001905 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
1906 }
1907 pid = getpid(); /* update child's pid */
1908 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02001909 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001910 }
1911
Willy Tarreaudd815982007-10-16 12:25:14 +02001912 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001913 /*
1914 * That's it : the central polling loop. Run until we stop.
1915 */
1916 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001917
Willy Tarreaubaaee002006-06-26 02:48:02 +02001918 /* Do some cleanup */
1919 deinit();
1920
1921 exit(0);
1922}
1923
1924
1925/*
1926 * Local variables:
1927 * c-indent-level: 8
1928 * c-basic-offset: 8
1929 * End:
1930 */