blob: 6e75f72c559923ddc893cb539316bf10c12c0650 [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 = {
183 .loglevel = DA_SEV_INFO,
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
403#ifdef USE_51DEGREES
404 printf("Built with 51Degrees support\n");
405#endif
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100406 putchar('\n');
407
Willy Tarreaube5b6852009-10-03 18:57:08 +0200408 list_pollers(stdout);
409 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100410}
411
Willy Tarreaubaaee002006-06-26 02:48:02 +0200412/*
413 * This function prints the command line usage and exits
414 */
415void usage(char *name)
416{
417 display_version();
418 fprintf(stderr,
Willy Tarreau5d01a632009-06-22 16:02:30 +0200419 "Usage : %s [-f <cfgfile>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200420 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200421 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100422 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200423 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200424 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200425 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200426 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200427 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200428 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200429 " -n sets the maximum total # of connections (%d)\n"
430 " -m limits the usable amount of memory (in MB)\n"
431 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200432 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200433 " -p writes pids of all children to this file\n"
434#if defined(ENABLE_EPOLL)
435 " -de disables epoll() usage even when available\n"
436#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200437#if defined(ENABLE_KQUEUE)
438 " -dk disables kqueue() usage even when available\n"
439#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200440#if defined(ENABLE_POLL)
441 " -dp disables poll() usage even when available\n"
442#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200443#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100444 " -dS disables splice usage (broken on old kernels)\n"
445#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200446#if defined(USE_GETADDRINFO)
447 " -dG disables getaddrinfo() usage\n"
448#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100449 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200450 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200451 "\n",
452 name, DEFAULT_MAXCONN, cfg_maxpconn);
453 exit(1);
454}
455
456
457
458/*********************************************************************/
459/* more specific functions ***************************************/
460/*********************************************************************/
461
462/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200463 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
464 * a signal zero to all subscribers. This means that it's as easy as
465 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200466 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200467void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200468{
469 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200470 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200471 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200472}
473
474/*
475 * upon SIGTTOU, we pause everything
476 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200477void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200478{
479 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200480 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200481}
482
483/*
484 * upon SIGTTIN, let's have a soft stop.
485 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200486void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200487{
Willy Tarreaube58c382011-07-24 18:28:10 +0200488 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200489}
490
491/*
492 * this function dumps every server's state when the process receives SIGHUP.
493 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200494void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200495{
496 struct proxy *p = proxy;
497
498 Warning("SIGHUP received, dumping servers states.\n");
499 while (p) {
500 struct server *s = p->srv;
501
502 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
503 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100504 chunk_printf(&trash,
505 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
506 p->id, s->id,
Willy Tarreau892337c2014-05-13 23:41:20 +0200507 (s->state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100508 s->cur_sess, s->nbpend, s->counters.cum_sess);
509 Warning("%s\n", trash.str);
510 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200511 s = s->next;
512 }
513
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200514 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
515 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100516 chunk_printf(&trash,
517 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
518 p->id,
519 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 +0200520 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100521 chunk_printf(&trash,
522 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
523 p->id,
524 (p->srv_bck) ? "is running on backup servers" : "has no server available",
525 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 +0200526 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100527 chunk_printf(&trash,
528 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
529 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
530 p->id, p->srv_act, p->srv_bck,
531 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 +0200532 }
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100533 Warning("%s\n", trash.str);
534 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200535
536 p = p->next;
537 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200538}
539
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200540void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200541{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200542 /* dump memory usage then free everything possible */
543 dump_pools();
544 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200545}
546
Willy Tarreaubaaee002006-06-26 02:48:02 +0200547/*
548 * This function initializes all the necessary variables. It only returns
549 * if everything is OK. If something fails, it exits.
550 */
551void init(int argc, char **argv)
552{
Willy Tarreaubaaee002006-06-26 02:48:02 +0200553 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200554 char *tmp;
555 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200556 int err_code = 0;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100557 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000558 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200559 char *change_dir = NULL;
Yuxans Yao4e25b012012-10-19 10:36:09 +0800560 struct tm curtime;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200561
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100562 chunk_init(&trash, malloc(global.tune.bufsize), global.tune.bufsize);
Willy Tarreau2819e992013-12-13 14:41:10 +0100563 alloc_trash_buffers(global.tune.bufsize);
David du Colombier7af46052012-05-16 14:16:48 +0200564
Emeric Brun2b920a12010-09-23 18:30:22 +0200565 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
566 * the string in case of truncation, and at least FreeBSD appears not to do
567 * it.
568 */
569 memset(hostname, 0, sizeof(hostname));
570 gethostname(hostname, sizeof(hostname) - 1);
571 memset(localpeer, 0, sizeof(localpeer));
572 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
573
Willy Tarreaubaaee002006-06-26 02:48:02 +0200574 /*
575 * Initialize the previously static variables.
576 */
577
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100578 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200579
580
581#ifdef HAPROXY_MEMMAX
582 global.rlimit_memmax = HAPROXY_MEMMAX;
583#endif
584
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200585 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200586 start_date = now;
587
Willy Tarreau84310e22014-02-14 11:59:04 +0100588 srandom(now_ms - getpid());
589
Yuxans Yao4e25b012012-10-19 10:36:09 +0800590 /* Get the numeric timezone. */
591 get_localtime(start_date.tv_sec, &curtime);
592 strftime(localtimezone, 6, "%z", &curtime);
593
Willy Tarreau29857942009-05-10 09:01:21 +0200594 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100595 if (init_acl() != 0)
596 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200597 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +0200598 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200599 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200600 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +0200601 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200602 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100603 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200604
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100605 /* Initialise lua. */
606 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100607
Willy Tarreau43b78992009-01-25 15:42:27 +0100608 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200609#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100610 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200611#endif
612#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100613 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200614#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200615#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100616 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200617#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200618#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100619 global.tune.options |= GTUNE_USE_SPLICE;
620#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200621#if defined(USE_GETADDRINFO)
622 global.tune.options |= GTUNE_USE_GAI;
623#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200624
625 pid = getpid();
626 progname = *argv;
627 while ((tmp = strchr(progname, '/')) != NULL)
628 progname = tmp + 1;
629
Kevinm48936af2010-12-22 16:08:21 +0000630 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +0200631 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +0000632
Willy Tarreaubaaee002006-06-26 02:48:02 +0200633 argc--; argv++;
634 while (argc > 0) {
635 char *flag;
636
637 if (**argv == '-') {
638 flag = *argv+1;
639
640 /* 1 arg */
641 if (*flag == 'v') {
642 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100643 if (flag[1] == 'v') /* -vv */
644 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200645 exit(0);
646 }
647#if defined(ENABLE_EPOLL)
648 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100649 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200650#endif
651#if defined(ENABLE_POLL)
652 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100653 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200654#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200655#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200656 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100657 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200658#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200659#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100660 else if (*flag == 'd' && flag[1] == 'S')
661 global.tune.options &= ~GTUNE_USE_SPLICE;
662#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200663#if defined(USE_GETADDRINFO)
664 else if (*flag == 'd' && flag[1] == 'G')
665 global.tune.options &= ~GTUNE_USE_GAI;
666#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100667 else if (*flag == 'd' && flag[1] == 'V')
668 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200669 else if (*flag == 'V')
670 arg_mode |= MODE_VERBOSE;
671 else if (*flag == 'd' && flag[1] == 'b')
672 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +0200673 else if (*flag == 'd' && flag[1] == 'M')
674 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreaubaaee002006-06-26 02:48:02 +0200675 else if (*flag == 'd')
676 arg_mode |= MODE_DEBUG;
677 else if (*flag == 'c')
678 arg_mode |= MODE_CHECK;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100679 else if (*flag == 'D') {
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200680 arg_mode |= MODE_DAEMON;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100681 if (flag[1] == 's') /* -Ds */
682 arg_mode |= MODE_SYSTEMD;
683 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200684 else if (*flag == 'q')
685 arg_mode |= MODE_QUIET;
686 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
687 /* list of pids to finish ('f') or terminate ('t') */
688
689 if (flag[1] == 'f')
690 oldpids_sig = SIGUSR1; /* finish then exit */
691 else
692 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200693
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200694 while (argc > 1 && argv[1][0] != '-') {
695 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
696 if (!oldpids) {
697 Alert("Cannot allocate old pid : out of memory.\n");
698 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200699 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200700 argc--; argv++;
701 oldpids[nb_oldpids] = atol(*argv);
702 if (oldpids[nb_oldpids] <= 0)
703 usage(progname);
704 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200705 }
706 }
Willy Tarreaua088d312015-10-08 11:58:48 +0200707 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
708 /* now that's a cfgfile list */
709 argv++; argc--;
710 while (argc > 0) {
711 wl = (struct wordlist *)calloc(1, sizeof(*wl));
712 if (!wl) {
713 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
714 exit(1);
715 }
716 wl->s = *argv;
717 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
718 argv++; argc--;
719 }
720 break;
721 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200722 else { /* >=2 args */
723 argv++; argc--;
724 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200725 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200726
727 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200728 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200729 case 'n' : cfg_maxconn = atol(*argv); break;
730 case 'm' : global.rlimit_memmax = atol(*argv); break;
731 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200732 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200733 case 'f' :
Willy Tarreau477ecd82010-01-03 21:12:30 +0100734 wl = (struct wordlist *)calloc(1, sizeof(*wl));
735 if (!wl) {
736 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200737 exit(1);
738 }
Willy Tarreau477ecd82010-01-03 21:12:30 +0100739 wl->s = *argv;
740 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200741 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200742 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200743 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200744 }
745 }
746 }
747 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200748 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200749 argv++; argc--;
750 }
751
752 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100753 (arg_mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_FOREGROUND | MODE_VERBOSE
Willy Tarreaubaaee002006-06-26 02:48:02 +0200754 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
755
Willy Tarreau477ecd82010-01-03 21:12:30 +0100756 if (LIST_ISEMPTY(&cfg_cfgfiles))
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200757 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200758
Willy Tarreau576132e2011-09-10 19:26:56 +0200759 if (change_dir && chdir(change_dir) < 0) {
760 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
761 exit(1);
762 }
763
Willy Tarreaubaaee002006-06-26 02:48:02 +0200764 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200765
766 init_default_instance();
767
Willy Tarreau477ecd82010-01-03 21:12:30 +0100768 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100769 int ret;
770
Willy Tarreau477ecd82010-01-03 21:12:30 +0100771 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100772 if (ret == -1) {
773 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100774 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100775 exit(1);
776 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100777 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100778 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100779 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200780 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200781 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200782 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200783
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100784 pattern_finalize_config();
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +0200785#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
786 tlskeys_finalize_config();
787#endif
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100788
Willy Tarreaubb925012009-07-23 13:36:36 +0200789 err_code |= check_config_validity();
790 if (err_code & (ERR_ABORT|ERR_FATAL)) {
791 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200792 exit(1);
793 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200794
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100795#ifdef CONFIG_HAP_NS
796 err_code |= netns_init();
797 if (err_code & (ERR_ABORT|ERR_FATAL)) {
798 Alert("Failed to initialize namespace support.\n");
799 exit(1);
800 }
801#endif
802
Willy Tarreaubaaee002006-06-26 02:48:02 +0200803 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100804 struct peers *pr;
805 struct proxy *px;
806
807 for (pr = peers; pr; pr = pr->next)
808 if (pr->peers_fe)
809 break;
810
811 for (px = proxy; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +0200812 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100813 break;
814
815 if (pr || px) {
816 /* At least one peer or one listener has been found */
817 qfprintf(stdout, "Configuration file is valid\n");
818 exit(0);
819 }
820 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
821 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200822 }
823
Baptiste Assmannfecd2b52015-08-14 16:20:52 +0200824 /* Apply server states */
825 apply_server_state();
826
Willy Tarreaue9b26022011-08-01 20:57:55 +0200827 global_listener_queue_task = task_new();
828 if (!global_listener_queue_task) {
829 Alert("Out of memory when initializing global task\n");
830 exit(1);
831 }
832 /* very simple initialization, users will queue the task if needed */
833 global_listener_queue_task->context = NULL; /* not even a context! */
834 global_listener_queue_task->process = manage_global_listener_queue;
835 global_listener_queue_task->expire = TICK_ETERNITY;
836
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200837 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200838 init_buffer();
David Carlier4a026412015-06-01 13:57:22 +0200839#if defined(USE_DEVICEATLAS)
840 init_deviceatlas();
841#endif
Dragan Dosen93b38d92015-06-29 16:43:25 +0200842#ifdef USE_51DEGREES
843 init_51degrees();
844#endif
Willy Tarreau8280d642009-09-23 23:37:52 +0200845
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200846 if (start_checks() < 0)
847 exit(1);
848
Willy Tarreaubaaee002006-06-26 02:48:02 +0200849 if (cfg_maxconn > 0)
850 global.maxconn = cfg_maxconn;
851
852 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200853 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200854 global.pidfile = strdup(cfg_pidfile);
855 }
856
Willy Tarreaud0256482015-01-15 21:45:22 +0100857 /* Now we want to compute the maxconn and possibly maxsslconn values.
858 * It's a bit tricky. If memmax is not set, maxconn defaults to
859 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
860 *
861 * If memmax is set, then it depends on which values are set. If
862 * maxsslconn is set, we use memmax to determine how many cleartext
863 * connections may be added, and set maxconn to the sum of the two.
864 * If maxconn is set and not maxsslconn, maxsslconn is computed from
865 * the remaining amount of memory between memmax and the cleartext
866 * connections. If neither are set, then it is considered that all
867 * connections are SSL-capable, and maxconn is computed based on this,
868 * then maxsslconn accordingly. We need to know if SSL is used on the
869 * frontends, backends, or both, because when it's used on both sides,
870 * we need twice the value for maxsslconn, but we only count the
871 * handshake once since it is not performed on the two sides at the
872 * same time (frontend-side is terminated before backend-side begins).
873 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +0100874 * ssl_handshake_cost during its initialization. In any case, if
875 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
876 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +0100877 */
878 if (!global.rlimit_memmax) {
879 if (global.maxconn == 0) {
880 global.maxconn = DEFAULT_MAXCONN;
881 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
882 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
883 }
884 }
885#ifdef USE_OPENSSL
886 else if (!global.maxconn && !global.maxsslconn &&
887 (global.ssl_used_frontend || global.ssl_used_backend)) {
888 /* memmax is set, compute everything automatically. Here we want
889 * to ensure that all SSL connections will be served. We take
890 * care of the number of sides where SSL is used, and consider
891 * the worst case : SSL used on both sides and doing a handshake
892 * simultaneously. Note that we can't have more than maxconn
893 * handshakes at a time by definition, so for the worst case of
894 * two SSL conns per connection, we count a single handshake.
895 */
896 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
897 int64_t mem = global.rlimit_memmax * 1048576ULL;
898
899 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
900 mem -= global.maxzlibmem;
901 mem = mem * MEM_USABLE_RATIO;
902
903 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +0200904 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +0100905 sides * global.ssl_session_max_cost + // SSL buffers, one per side
906 global.ssl_handshake_max_cost); // 1 handshake per connection max
907
908 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +0100909#ifdef SYSTEM_MAXCONN
910 if (global.maxconn > DEFAULT_MAXCONN)
911 global.maxconn = DEFAULT_MAXCONN;
912#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +0100913 global.maxsslconn = sides * global.maxconn;
914 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
915 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
916 global.maxconn, global.maxsslconn);
917 }
918 else if (!global.maxsslconn &&
919 (global.ssl_used_frontend || global.ssl_used_backend)) {
920 /* memmax and maxconn are known, compute maxsslconn automatically.
921 * maxsslconn being forced, we don't know how many of it will be
922 * on each side if both sides are being used. The worst case is
923 * when all connections use only one SSL instance because
924 * handshakes may be on two sides at the same time.
925 */
926 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
927 int64_t mem = global.rlimit_memmax * 1048576ULL;
928 int64_t sslmem;
929
930 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
931 mem -= global.maxzlibmem;
932 mem = mem * MEM_USABLE_RATIO;
933
Willy Tarreau87b09662015-04-03 00:22:06 +0200934 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +0100935 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
936 global.maxsslconn = round_2dig(global.maxsslconn);
937
938 if (sslmem <= 0 || global.maxsslconn < sides) {
939 Alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
940 "high for the global.memmax value (%d MB). The absolute maximum possible value "
941 "without SSL is %d, but %d was found and SSL is in use.\n",
942 global.rlimit_memmax,
Willy Tarreau87b09662015-04-03 00:22:06 +0200943 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
Willy Tarreaud0256482015-01-15 21:45:22 +0100944 global.maxconn);
945 exit(1);
946 }
947
948 if (global.maxsslconn > sides * global.maxconn)
949 global.maxsslconn = sides * global.maxconn;
950
951 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
952 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
953 }
954#endif
955 else if (!global.maxconn) {
956 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
957 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
958 int64_t mem = global.rlimit_memmax * 1048576ULL;
959 int64_t clearmem;
960
961 if (global.ssl_used_frontend || global.ssl_used_backend)
962 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
963
964 mem -= global.maxzlibmem;
965 mem = mem * MEM_USABLE_RATIO;
966
967 clearmem = mem;
968 if (sides)
969 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
970
Willy Tarreau87b09662015-04-03 00:22:06 +0200971 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +0100972 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +0100973#ifdef SYSTEM_MAXCONN
974 if (global.maxconn > DEFAULT_MAXCONN)
975 global.maxconn = DEFAULT_MAXCONN;
976#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +0100977
978 if (clearmem <= 0 || !global.maxconn) {
979 Alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
980 "high for the global.memmax value (%d MB). The absolute maximum possible value "
981 "is %d, but %d was found.\n",
982 global.rlimit_memmax,
983 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
984 global.maxsslconn);
985 exit(1);
986 }
987
988 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
989 if (sides && global.maxsslconn > sides * global.maxconn) {
990 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
991 "to be limited to %d. Better reduce global.maxsslconn to get more "
992 "room for extra connections.\n", global.maxsslconn, global.maxconn);
993 }
994 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
995 }
996 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200997
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100998 if (!global.maxpipes) {
999 /* maxpipes not specified. Count how many frontends and backends
1000 * may be using splicing, and bound that to maxconn.
1001 */
1002 struct proxy *cur;
1003 int nbfe = 0, nbbe = 0;
1004
1005 for (cur = proxy; cur; cur = cur->next) {
1006 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
1007 if (cur->cap & PR_CAP_FE)
1008 nbfe += cur->maxconn;
1009 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +01001010 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001011 }
1012 }
1013 global.maxpipes = MAX(nbfe, nbbe);
1014 if (global.maxpipes > global.maxconn)
1015 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +01001016 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001017 }
1018
1019
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001020 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001021 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01001022 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001023
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001024 if (global.stats_fe)
1025 global.maxsock += global.stats_fe->maxconn;
1026
1027 if (peers) {
1028 /* peers also need to bypass global maxconn */
1029 struct peers *p = peers;
1030
1031 for (p = peers; p; p = p->next)
1032 if (p->peers_fe)
1033 global.maxsock += p->peers_fe->maxconn;
1034 }
1035
Willy Tarreau1db37712007-06-03 17:16:49 +02001036 if (global.tune.maxpollevents <= 0)
1037 global.tune.maxpollevents = MAX_POLL_EVENTS;
1038
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01001039 if (global.tune.recv_enough == 0)
1040 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
1041
Willy Tarreau27097842015-09-28 13:53:23 +02001042 if (global.tune.maxrewrite < 0)
1043 global.tune.maxrewrite = MAXREWRITE;
1044
Willy Tarreau27a674e2009-08-17 07:23:33 +02001045 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
1046 global.tune.maxrewrite = global.tune.bufsize / 2;
1047
Willy Tarreaubaaee002006-06-26 02:48:02 +02001048 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
1049 /* command line debug mode inhibits configuration mode */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001050 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001051 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
1052 }
1053
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001054 if (arg_mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001055 /* command line daemon mode inhibits foreground and debug modes mode */
1056 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001057 global.mode |= (arg_mode & (MODE_DAEMON | MODE_SYSTEMD));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001058 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001059
1060 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001061
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001062 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET))) {
1063 Warning("<debug> mode incompatible with <quiet>, <daemon> and <systemd>. Keeping <debug> only.\n");
1064 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001065 }
1066
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001067 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_SYSTEMD))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001068 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
1069 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
1070 global.nbproc = 1;
1071 }
1072
1073 if (global.nbproc < 1)
1074 global.nbproc = 1;
1075
Willy Tarreau8096de92010-02-26 11:12:27 +01001076 swap_buffer = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau7e2c6472012-10-29 20:44:36 +01001077 get_http_auth_buff = (char *)calloc(1, global.tune.bufsize);
Thierry FOURNIER7e25df32015-07-24 19:31:59 +02001078 static_table_key = calloc(1, sizeof(*static_table_key));
Willy Tarreau8096de92010-02-26 11:12:27 +01001079
Willy Tarreau8d5d77e2009-10-18 07:25:52 +02001080 fdinfo = (struct fdinfo *)calloc(1,
1081 sizeof(struct fdinfo) * (global.maxsock));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001082 fdtab = (struct fdtab *)calloc(1,
1083 sizeof(struct fdtab) * (global.maxsock));
Willy Tarreauef1d1f82007-04-16 00:25:25 +02001084 /*
1085 * Note: we could register external pollers here.
1086 * Built-in pollers have been registered before main().
1087 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001088
Willy Tarreau43b78992009-01-25 15:42:27 +01001089 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001090 disable_poller("kqueue");
1091
Willy Tarreau43b78992009-01-25 15:42:27 +01001092 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001093 disable_poller("epoll");
1094
Willy Tarreau43b78992009-01-25 15:42:27 +01001095 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001096 disable_poller("poll");
1097
Willy Tarreau43b78992009-01-25 15:42:27 +01001098 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001099 disable_poller("select");
1100
1101 /* Note: we could disable any poller by name here */
1102
Willy Tarreau2ff76222007-04-09 19:29:56 +02001103 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1104 list_pollers(stderr);
1105
Willy Tarreau4f60f162007-04-08 16:39:58 +02001106 if (!init_pollers()) {
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001107 Alert("No polling mechanism available.\n"
1108 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
1109 " is too low on this platform to support maxconn and the number of listeners\n"
1110 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
1111 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
Prach Pongpanichb837e682013-05-14 20:56:28 +02001112 " global maxconn setting to accommodate the system's limitation. For reference,\n"
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001113 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
1114 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
1115 " check build settings using 'haproxy -vv'.\n\n",
1116 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001117 exit(1);
1118 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001119 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1120 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001121 }
1122
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001123 if (!global.node)
1124 global.node = strdup(hostname);
1125
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01001126 if (!hlua_post_init())
1127 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01001128
Baptiste Assmann325137d2015-04-13 23:40:55 +02001129 /* initialize structures for name resolution */
1130 if (!dns_init_resolvers())
1131 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001132}
1133
Simon Horman6fb82592011-07-15 13:14:11 +09001134static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09001135{
Simon Hormanac821422011-07-15 13:14:09 +09001136 struct acl_term_suite *suite, *suiteb;
1137 struct acl_term *term, *termb;
1138
Simon Horman6fb82592011-07-15 13:14:11 +09001139 if (!cond)
1140 return;
1141
1142 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
1143 list_for_each_entry_safe(term, termb, &suite->terms, list) {
1144 LIST_DEL(&term->list);
1145 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09001146 }
Simon Horman6fb82592011-07-15 13:14:11 +09001147 LIST_DEL(&suite->list);
1148 free(suite);
1149 }
1150
1151 free(cond);
1152}
1153
1154static void deinit_tcp_rules(struct list *rules)
1155{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02001156 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09001157
1158 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09001159 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09001160 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09001161 free(trule);
1162 }
1163}
1164
Willy Tarreau12785782012-04-27 21:37:17 +02001165static void deinit_sample_arg(struct arg *p)
Simon Horman6fb82592011-07-15 13:14:11 +09001166{
Willy Tarreauf9954102012-04-20 14:03:29 +02001167 struct arg *p_back = p;
1168
Simon Horman6fb82592011-07-15 13:14:11 +09001169 if (!p)
1170 return;
1171
Willy Tarreauf9954102012-04-20 14:03:29 +02001172 while (p->type != ARGT_STOP) {
Willy Tarreau496aa012012-06-01 10:38:29 +02001173 if (p->type == ARGT_STR || p->unresolved) {
Willy Tarreauf9954102012-04-20 14:03:29 +02001174 free(p->data.str.str);
1175 p->data.str.str = NULL;
Willy Tarreau496aa012012-06-01 10:38:29 +02001176 p->unresolved = 0;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001177 }
Willy Tarreau46947782015-01-19 19:00:58 +01001178 else if (p->type == ARGT_REG) {
1179 if (p->data.reg) {
1180 regex_free(p->data.reg);
1181 free(p->data.reg);
1182 p->data.reg = NULL;
1183 }
1184 }
Willy Tarreauf9954102012-04-20 14:03:29 +02001185 p++;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001186 }
Simon Horman6fb82592011-07-15 13:14:11 +09001187
Willy Tarreau2e845be2012-10-19 19:49:09 +02001188 if (p_back != empty_arg_list)
1189 free(p_back);
Simon Horman6fb82592011-07-15 13:14:11 +09001190}
1191
1192static void deinit_stick_rules(struct list *rules)
1193{
1194 struct sticking_rule *rule, *ruleb;
1195
1196 list_for_each_entry_safe(rule, ruleb, rules, list) {
1197 LIST_DEL(&rule->list);
1198 deinit_acl_cond(rule->cond);
1199 if (rule->expr) {
Willy Tarreau12785782012-04-27 21:37:17 +02001200 struct sample_conv_expr *conv_expr, *conv_exprb;
Simon Horman6fb82592011-07-15 13:14:11 +09001201 list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list)
Willy Tarreau12785782012-04-27 21:37:17 +02001202 deinit_sample_arg(conv_expr->arg_p);
1203 deinit_sample_arg(rule->expr->arg_p);
Simon Horman6fb82592011-07-15 13:14:11 +09001204 free(rule->expr);
1205 }
1206 free(rule);
1207 }
1208}
1209
Willy Tarreaubaaee002006-06-26 02:48:02 +02001210void deinit(void)
1211{
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001212 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001213 struct cap_hdr *h,*h_next;
1214 struct server *s,*s_next;
1215 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001216 struct acl_cond *cond, *condb;
1217 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001218 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001219 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001220 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001221 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001222 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01001223 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001224 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02001225 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01001226 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001227 struct bind_conf *bind_conf, *bind_back;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001228 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001229
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001230 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001231 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02001232 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001233 free(p->id);
1234 free(p->check_req);
1235 free(p->cookie_name);
1236 free(p->cookie_domain);
1237 free(p->url_param_name);
1238 free(p->capture_name);
1239 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09001240 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02001241 if (p->conf.logformat_string != default_http_log_format &&
1242 p->conf.logformat_string != default_tcp_log_format &&
1243 p->conf.logformat_string != clf_http_log_format)
1244 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02001245
Willy Tarreau62a61232013-04-12 18:13:46 +02001246 free(p->conf.lfs_file);
1247 free(p->conf.uniqueid_format_string);
1248 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08001249 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001250
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001251 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1252 free(p->conf.logformat_sd_string);
1253 free(p->conf.lfsd_file);
1254
Willy Tarreaua534fea2008-08-03 12:19:50 +02001255 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02001256 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001257
Willy Tarreauf4f04122010-01-28 18:10:50 +01001258 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
1259 LIST_DEL(&cwl->list);
1260 free(cwl->s);
1261 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001262 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001263
Willy Tarreauf4f04122010-01-28 18:10:50 +01001264 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
1265 LIST_DEL(&cwl->list);
1266 free(cwl->s);
1267 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001268 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001269
Willy Tarreaub80c2302007-11-30 20:51:32 +01001270 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
1271 LIST_DEL(&cond->list);
1272 prune_acl_cond(cond);
1273 free(cond);
1274 }
1275
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001276 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001277 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001278 regex_free(exp->preg);
1279 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001280 }
1281
Willy Tarreau98d04852015-05-26 12:18:29 +02001282 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001283 expb = exp;
1284 exp = exp->next;
1285 free(expb);
1286 }
1287
1288 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001289 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001290 regex_free(exp->preg);
1291 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001292 }
1293
Willy Tarreau98d04852015-05-26 12:18:29 +02001294 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001295 expb = exp;
1296 exp = exp->next;
1297 free(expb);
1298 }
1299
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001300 /* build a list of unique uri_auths */
1301 if (!ua)
1302 ua = p->uri_auth;
1303 else {
1304 /* check if p->uri_auth is unique */
1305 for (uap = ua; uap; uap=uap->next)
1306 if (uap == p->uri_auth)
1307 break;
1308
Willy Tarreauaccc4e12008-06-24 11:14:45 +02001309 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001310 /* add it, if it is */
1311 p->uri_auth->next = ua;
1312 ua = p->uri_auth;
1313 }
1314 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001315
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001316 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
1317 LIST_DEL(&acl->list);
1318 prune_acl(acl);
1319 free(acl);
1320 }
1321
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001322 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
1323 LIST_DEL(&srule->list);
1324 prune_acl_cond(srule->cond);
1325 free(srule->cond);
1326 free(srule);
1327 }
1328
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001329 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
1330 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001331 if (rule->cond) {
1332 prune_acl_cond(rule->cond);
1333 free(rule->cond);
1334 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001335 free(rule);
1336 }
1337
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001338 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
1339 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01001340 if (rdr->cond) {
1341 prune_acl_cond(rdr->cond);
1342 free(rdr->cond);
1343 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001344 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01001345 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
1346 LIST_DEL(&lf->list);
1347 free(lf);
1348 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001349 free(rdr);
1350 }
1351
William Lallemand0f99e342011-10-12 17:50:54 +02001352 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
1353 LIST_DEL(&log->list);
1354 free(log);
1355 }
1356
William Lallemand723b73a2012-02-08 16:37:49 +01001357 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
1358 LIST_DEL(&lf->list);
1359 free(lf);
1360 }
1361
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001362 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
1363 LIST_DEL(&lf->list);
1364 free(lf);
1365 }
1366
Simon Hormanac821422011-07-15 13:14:09 +09001367 deinit_tcp_rules(&p->tcp_req.inspect_rules);
1368 deinit_tcp_rules(&p->tcp_req.l4_rules);
1369
Simon Horman6fb82592011-07-15 13:14:11 +09001370 deinit_stick_rules(&p->storersp_rules);
1371 deinit_stick_rules(&p->sticking_rules);
1372
Willy Tarreaubaaee002006-06-26 02:48:02 +02001373 h = p->req_cap;
1374 while (h) {
1375 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001376 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001377 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001378 free(h);
1379 h = h_next;
1380 }/* end while(h) */
1381
1382 h = p->rsp_cap;
1383 while (h) {
1384 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001385 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001386 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001387 free(h);
1388 h = h_next;
1389 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001390
Willy Tarreaubaaee002006-06-26 02:48:02 +02001391 s = p->srv;
1392 while (s) {
1393 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001394
Willy Tarreau5b3a2022012-09-28 15:01:02 +02001395 if (s->check.task) {
1396 task_delete(s->check.task);
1397 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001398 }
Simon Hormand60d6912013-11-25 10:46:36 +09001399 if (s->agent.task) {
1400 task_delete(s->agent.task);
1401 task_free(s->agent.task);
1402 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001403
Willy Tarreau2e993902011-10-31 11:53:20 +01001404 if (s->warmup) {
1405 task_delete(s->warmup);
1406 task_free(s->warmup);
1407 }
1408
Willy Tarreaua534fea2008-08-03 12:19:50 +02001409 free(s->id);
1410 free(s->cookie);
Willy Tarreau1ae1b7b2012-09-28 15:28:30 +02001411 free(s->check.bi);
1412 free(s->check.bo);
Simon Hormand60d6912013-11-25 10:46:36 +09001413 free(s->agent.bi);
1414 free(s->agent.bo);
James Brown55f9ff12015-10-21 18:19:05 -07001415 free(s->agent.send_string);
Sárközi, László34c01792014-09-05 10:08:23 +02001416 free((char*)s->conf.file);
Christopher Faulet77fe80c2015-07-29 13:02:40 +02001417#ifdef USE_OPENSSL
1418 if (s->use_ssl || s->check.use_ssl)
1419 ssl_sock_free_srv_ctx(s);
1420#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001421 free(s);
1422 s = s_next;
1423 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001424
Willy Tarreau4348fad2012-09-20 16:48:07 +02001425 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02001426 unbind_listener(l);
1427 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001428 LIST_DEL(&l->by_fe);
1429 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001430 free(l->name);
1431 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001432 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001433 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001434
Willy Tarreau4348fad2012-09-20 16:48:07 +02001435 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001436 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
1437#ifdef USE_OPENSSL
Christopher Faulet31af49d2015-06-09 17:29:50 +02001438 ssl_sock_free_ca(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001439 ssl_sock_free_all_ctx(bind_conf);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001440 free(bind_conf->ca_file);
Christopher Faulet31af49d2015-06-09 17:29:50 +02001441 free(bind_conf->ca_sign_file);
1442 free(bind_conf->ca_sign_pass);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001443 free(bind_conf->ciphers);
Emeric Brun2b58d042012-09-20 17:10:03 +02001444 free(bind_conf->ecdhe);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001445 free(bind_conf->crl_file);
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001446#endif /* USE_OPENSSL */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001447 free(bind_conf->file);
1448 free(bind_conf->arg);
1449 LIST_DEL(&bind_conf->by_fe);
1450 free(bind_conf);
1451 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001452
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001453 free(p->desc);
1454 free(p->fwdfor_hdr_name);
1455
Willy Tarreauff011f22011-01-06 17:51:27 +01001456 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06001457 free_http_res_rules(&p->http_res_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02001458 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01001459
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001460 pool_destroy2(p->req_cap_pool);
1461 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09001462 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001463
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001464 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001465 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001466 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001467 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02001468
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001469 while (ua) {
1470 uap = ua;
1471 ua = ua->next;
1472
Willy Tarreaua534fea2008-08-03 12:19:50 +02001473 free(uap->uri_prefix);
1474 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001475 free(uap->node);
1476 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001477
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001478 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001479 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001480
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001481 free(uap);
1482 }
1483
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001484 userlist_free(userlist);
1485
David Carlier834cb2e2015-09-25 12:02:25 +01001486 cfg_unregister_sections();
1487
1488 free_trash_buffers();
1489 chunk_destroy(&trash);
1490
Willy Tarreaudd815982007-10-16 12:25:14 +02001491 protocol_unbind_all();
1492
David Carlier4a026412015-06-01 13:57:22 +02001493#if defined(USE_DEVICEATLAS)
1494 deinit_deviceatlas();
1495#endif
1496
Thomas Holmes5ed33ee2015-05-14 17:14:30 +01001497#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +02001498 deinit_51degrees();
Thomas Holmes4d441a72015-05-29 12:54:25 +01001499#endif
Thomas Holmes5ed33ee2015-05-14 17:14:30 +01001500
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001501 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02001502 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001503 free(global.chroot); global.chroot = NULL;
1504 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001505 free(global.node); global.node = NULL;
1506 free(global.desc); global.desc = NULL;
Godbach4cc1b0d2013-06-26 16:49:51 +08001507 free(fdinfo); fdinfo = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001508 free(fdtab); fdtab = NULL;
1509 free(oldpids); oldpids = NULL;
David Carlier834cb2e2015-09-25 12:02:25 +01001510 free(static_table_key); static_table_key = NULL;
1511 free(get_http_auth_buff); get_http_auth_buff = NULL;
1512 free(swap_buffer); swap_buffer = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001513 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001514
William Lallemand0f99e342011-10-12 17:50:54 +02001515 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1516 LIST_DEL(&log->list);
1517 free(log);
1518 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001519 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1520 LIST_DEL(&wl->list);
1521 free(wl);
1522 }
1523
Willy Tarreau87b09662015-04-03 00:22:06 +02001524 pool_destroy2(pool2_stream);
Willy Tarreaufeb76402015-04-03 14:10:06 +02001525 pool_destroy2(pool2_session);
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001526 pool_destroy2(pool2_connection);
Willy Tarreau9b28e032012-10-12 23:49:43 +02001527 pool_destroy2(pool2_buffer);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001528 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001529 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001530 pool_destroy2(pool2_capture);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001531 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001532 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001533 pool_destroy2(pool2_hdr_idx);
Willy Tarreau63986c72015-04-03 22:55:33 +02001534 pool_destroy2(pool2_http_txn);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001535
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001536 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001537} /* end deinit() */
1538
Willy Tarreaubb545b42010-08-25 12:58:59 +02001539/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1540 * pids the signal was correctly delivered to.
1541 */
1542static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001543{
1544 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001545 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001546 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001547 if (kill(oldpids[p], sig) == 0)
1548 ret++;
1549 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001550}
1551
Willy Tarreau918ff602011-07-25 16:33:49 +02001552/* Runs the polling loop */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001553void run_poll_loop()
1554{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001555 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001556
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001557 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001558 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001559 /* Process a few tasks */
1560 process_runnable_tasks();
1561
Willy Tarreau29857942009-05-10 09:01:21 +02001562 /* check if we caught some signals and process them */
1563 signal_process_queue();
1564
Willy Tarreau58b458d2008-06-29 22:40:23 +02001565 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001566 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001567
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001568 /* stop when there's nothing left to do */
1569 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001570 break;
1571
Willy Tarreau10146c92015-04-13 20:44:19 +02001572 /* expire immediately if events are pending */
Willy Tarreau64bca9d2015-09-25 17:39:23 +02001573 if (fd_cache_num || run_queue || signal_queue_len || !LIST_ISEMPTY(&applet_active_queue))
Willy Tarreau10146c92015-04-13 20:44:19 +02001574 next = now_ms;
1575
Willy Tarreau58b458d2008-06-29 22:40:23 +02001576 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001577 cur_poller.poll(&cur_poller, next);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01001578 fd_process_cached_events();
Willy Tarreau3c595ac2015-04-19 09:59:31 +02001579 applet_run_active();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001580 }
1581}
1582
Willy Tarreaue9b26022011-08-01 20:57:55 +02001583/* This is the global management task for listeners. It enables listeners waiting
1584 * for global resources when there are enough free resource, or at least once in
1585 * a while. It is designed to be called as a task.
1586 */
1587static struct task *manage_global_listener_queue(struct task *t)
1588{
1589 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001590 /* queue is empty, nothing to do */
1591 if (LIST_ISEMPTY(&global_listener_queue))
1592 goto out;
1593
1594 /* If there are still too many concurrent connections, let's wait for
1595 * some of them to go away. We don't need to re-arm the timer because
1596 * each of them will scan the queue anyway.
1597 */
1598 if (unlikely(actconn >= global.maxconn))
1599 goto out;
1600
1601 /* We should periodically try to enable listeners waiting for a global
1602 * resource here, because it is possible, though very unlikely, that
1603 * they have been blocked by a temporary lack of global resource such
1604 * as a file descriptor or memory and that the temporary condition has
1605 * disappeared.
1606 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001607 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001608
1609 out:
1610 t->expire = next;
1611 task_queue(t);
1612 return t;
1613}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001614
Willy Tarreaubaaee002006-06-26 02:48:02 +02001615int main(int argc, char **argv)
1616{
1617 int err, retry;
1618 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001619 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02001620 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001621
Emeric Bruncf20bf12010-10-22 16:06:11 +02001622 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001623 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1624 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1625 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001626
Willy Tarreaue437c442010-03-17 18:02:46 +01001627 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1628 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1629 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001630 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001631 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001632
Willy Tarreaudc23a922011-02-16 11:10:36 +01001633 /* ulimits */
1634 if (!global.rlimit_nofile)
1635 global.rlimit_nofile = global.maxsock;
1636
1637 if (global.rlimit_nofile) {
1638 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1639 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
1640 Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile);
1641 }
1642 }
1643
1644 if (global.rlimit_memmax) {
1645 limit.rlim_cur = limit.rlim_max =
Willy Tarreauf2dd5e42015-10-29 10:42:55 +01001646 global.rlimit_memmax * 1048576ULL / global.nbproc;
Willy Tarreaudc23a922011-02-16 11:10:36 +01001647#ifdef RLIMIT_AS
1648 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1649 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1650 argv[0], global.rlimit_memmax);
1651 }
1652#else
1653 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1654 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1655 argv[0], global.rlimit_memmax);
1656 }
1657#endif
1658 }
1659
Willy Tarreaubaaee002006-06-26 02:48:02 +02001660 /* We will loop at most 100 times with 10 ms delay each time.
1661 * That's at most 1 second. We only send a signal to old pids
1662 * if we cannot grab at least one port.
1663 */
1664 retry = MAX_START_RETRIES;
1665 err = ERR_NONE;
1666 while (retry >= 0) {
1667 struct timeval w;
1668 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001669 /* exit the loop on no error or fatal error */
1670 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001671 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001672 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001673 break;
1674
1675 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1676 * listening sockets. So on those platforms, it would be wiser to
1677 * simply send SIGUSR1, which will not be undoable.
1678 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001679 if (tell_old_pids(SIGTTOU) == 0) {
1680 /* no need to wait if we can't contact old pids */
1681 retry = 0;
1682 continue;
1683 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001684 /* give some time to old processes to stop listening */
1685 w.tv_sec = 0;
1686 w.tv_usec = 10*1000;
1687 select(0, NULL, NULL, NULL, &w);
1688 retry--;
1689 }
1690
1691 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001692 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001693 if (retry != MAX_START_RETRIES && nb_oldpids) {
1694 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001695 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001696 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001697 exit(1);
1698 }
1699
1700 if (listeners == 0) {
Willy Tarreauf2ee0162015-08-09 11:01:51 +02001701 Alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001702 /* Note: we don't have to send anything to the old pids because we
1703 * never stopped them. */
1704 exit(1);
1705 }
1706
Emeric Bruncf20bf12010-10-22 16:06:11 +02001707 err = protocol_bind_all(errmsg, sizeof(errmsg));
1708 if ((err & ~ERR_WARN) != ERR_NONE) {
1709 if ((err & ERR_ALERT) || (err & ERR_WARN))
1710 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1711
Willy Tarreaudd815982007-10-16 12:25:14 +02001712 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1713 protocol_unbind_all(); /* cleanup everything we can */
1714 if (nb_oldpids)
1715 tell_old_pids(SIGTTIN);
1716 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001717 } else if (err & ERR_WARN) {
1718 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001719 }
1720
Willy Tarreaubaaee002006-06-26 02:48:02 +02001721 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001722 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1723 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001724
Willy Tarreaubaaee002006-06-26 02:48:02 +02001725 /* MODE_QUIET can inhibit alerts and warnings below this line */
1726
1727 global.mode &= ~MODE_STARTING;
1728 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1729 /* detach from the tty */
1730 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001731 }
1732
1733 /* open log & pid files before the chroot */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001734 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001735 unlink(global.pidfile);
1736 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1737 if (pidfd < 0) {
1738 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1739 if (nb_oldpids)
1740 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001741 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001742 exit(1);
1743 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001744 }
1745
Willy Tarreaub38651a2007-03-24 17:24:39 +01001746 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1747 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001748 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001749 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001750 exit(1);
1751 }
1752
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001753 /* If the user is not root, we'll still let him try the configuration
1754 * but we inform him that unexpected behaviour may occur.
1755 */
1756 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1757 Warning("[%s.main()] Some options which require full privileges"
1758 " might not work well.\n"
1759 "", argv[0]);
1760
Willy Tarreauf223cc02007-10-15 18:57:08 +02001761 /* chroot if needed */
1762 if (global.chroot != NULL) {
Willy Tarreau21337822012-04-29 14:11:38 +02001763 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Willy Tarreauf223cc02007-10-15 18:57:08 +02001764 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1765 if (nb_oldpids)
1766 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001767 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001768 exit(1);
1769 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02001770 }
1771
Willy Tarreaubaaee002006-06-26 02:48:02 +02001772 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001773 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001774
1775 /* Note that any error at this stage will be fatal because we will not
1776 * be able to restart the old pids.
1777 */
1778
1779 /* setgid / setuid */
Michael Schererab012dd2013-01-12 18:35:19 +01001780 if (global.gid) {
1781 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
1782 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
1783 " without 'uid'/'user' is generally useless.\n", argv[0]);
1784
1785 if (setgid(global.gid) == -1) {
1786 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
1787 protocol_unbind_all();
1788 exit(1);
1789 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001790 }
1791
1792 if (global.uid && setuid(global.uid) == -1) {
1793 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001794 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001795 exit(1);
1796 }
1797
1798 /* check ulimits */
1799 limit.rlim_cur = limit.rlim_max = 0;
1800 getrlimit(RLIMIT_NOFILE, &limit);
1801 if (limit.rlim_cur < global.maxsock) {
1802 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 +02001803 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001804 }
1805
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001806 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001807 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001808 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001809 int ret = 0;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001810 int *children = calloc(global.nbproc, sizeof(int));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001811 int proc;
1812
1813 /* the father launches the required number of processes */
1814 for (proc = 0; proc < global.nbproc; proc++) {
1815 ret = fork();
1816 if (ret < 0) {
1817 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001818 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001819 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001820 }
1821 else if (ret == 0) /* child breaks here */
1822 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001823 children[proc] = ret;
Willy Tarreau269ab312012-09-05 08:02:48 +02001824 if (pidfd >= 0) {
1825 char pidstr[100];
1826 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01001827 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001828 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001829 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001830 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001831
1832#ifdef USE_CPU_AFFINITY
1833 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02001834 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001835 global.cpu_map[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02001836#ifdef __FreeBSD__
1837 cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1838#else
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001839 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1840#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02001841#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001842 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02001843 if (pidfd >= 0) {
1844 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
1845 close(pidfd);
1846 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02001847
1848 /* We won't ever use this anymore */
1849 free(oldpids); oldpids = NULL;
1850 free(global.chroot); global.chroot = NULL;
1851 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001852
Willy Tarreauedaff0a2015-05-01 17:01:08 +02001853 if (proc == global.nbproc) {
1854 if (global.mode & MODE_SYSTEMD) {
1855 protocol_unbind_all();
1856 for (proc = 0; proc < global.nbproc; proc++)
1857 while (waitpid(children[proc], NULL, 0) == -1 && errno == EINTR);
1858 }
1859 exit(0); /* parent must leave */
1860 }
1861
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001862 /* we might have to unbind some proxies from some processes */
1863 px = proxy;
1864 while (px != NULL) {
1865 if (px->bind_proc && px->state != PR_STSTOPPED) {
Willy Tarreaua9db57e2013-01-18 11:29:29 +01001866 if (!(px->bind_proc & (1UL << proc)))
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001867 stop_proxy(px);
1868 }
1869 px = px->next;
1870 }
1871
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001872 /* we might have to unbind some peers sections from some processes */
1873 for (curpeers = peers; curpeers; curpeers = curpeers->next) {
1874 if (!curpeers->peers_fe)
1875 continue;
1876
1877 if (curpeers->peers_fe->bind_proc & (1UL << proc))
1878 continue;
1879
1880 stop_proxy(curpeers->peers_fe);
1881 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02001882 signal_unregister_handler(curpeers->sighandler);
1883 task_delete(curpeers->sync_task);
1884 task_free(curpeers->sync_task);
1885 curpeers->sync_task = NULL;
1886 task_free(curpeers->peers_fe->task);
1887 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001888 curpeers->peers_fe = NULL;
1889 }
1890
Dirkjan Bussink07fcaaa2014-04-28 22:57:16 +00001891 free(children);
1892 children = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001893 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
1894 * that we can detach from the TTY. We MUST NOT do it in other cases since
1895 * it would have already be done, and 0-2 would have been affected to listening
1896 * sockets
1897 */
Willy Tarreau106cb762008-11-16 07:40:34 +01001898 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001899 /* detach from the tty */
1900 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01001901 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001902 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
1903 }
1904 pid = getpid(); /* update child's pid */
1905 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02001906 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001907 }
1908
Willy Tarreaudd815982007-10-16 12:25:14 +02001909 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001910 /*
1911 * That's it : the central polling loop. Run until we stop.
1912 */
1913 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001914
Willy Tarreaubaaee002006-06-26 02:48:02 +02001915 /* Do some cleanup */
1916 deinit();
1917
1918 exit(0);
1919}
1920
1921
1922/*
1923 * Local variables:
1924 * c-indent-level: 8
1925 * c-basic-offset: 8
1926 * End:
1927 */