blob: 8198e4efcbafa1ef2696f52616632ae92992df0d [file] [log] [blame]
Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau7d1b48f2016-05-10 15:36:58 +02003 * Copyright 2000-2016 Willy Tarreau <willy@haproxy.org>.
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
David Carlier7ece0962015-12-08 21:43:09 +000028#define _GNU_SOURCE
Willy Tarreaubaaee002006-06-26 02:48:02 +020029#include <stdio.h>
30#include <stdlib.h>
31#include <unistd.h>
32#include <string.h>
33#include <ctype.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020034#include <dirent.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020035#include <sys/stat.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020036#include <sys/time.h>
37#include <sys/types.h>
38#include <sys/socket.h>
39#include <netinet/tcp.h>
40#include <netinet/in.h>
41#include <arpa/inet.h>
42#include <netdb.h>
43#include <fcntl.h>
44#include <errno.h>
45#include <signal.h>
46#include <stdarg.h>
47#include <sys/resource.h>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010048#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020049#include <time.h>
50#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010051#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010052#ifdef USE_CPU_AFFINITY
Willy Tarreaufc6c0322012-11-16 16:12:27 +010053#include <sched.h>
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020054#ifdef __FreeBSD__
55#include <sys/param.h>
56#include <sys/cpuset.h>
57#endif
Willy Tarreaufc6c0322012-11-16 16:12:27 +010058#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020059
60#ifdef DEBUG_FULL
61#include <assert.h>
62#endif
63
Willy Tarreau2dd0d472006-06-29 17:53:05 +020064#include <common/base64.h>
65#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020066#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020067#include <common/compat.h>
68#include <common/config.h>
69#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010070#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020071#include <common/memory.h>
72#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010073#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020074#include <common/regex.h>
75#include <common/standard.h>
76#include <common/time.h>
77#include <common/uri_auth.h>
78#include <common/version.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020079
80#include <types/capture.h>
Christopher Faulet92d36382015-11-05 13:35:03 +010081#include <types/compression.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020082#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020083#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090084#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020085#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020086
Willy Tarreau0fc45a72007-06-17 00:36:03 +020087#include <proto/acl.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020088#include <proto/applet.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020089#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020090#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020091#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020092#include <proto/channel.h>
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +020093#include <proto/checks.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +020094#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020095#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020096#include <proto/filters.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +020097#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +010098#include <proto/hlua.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020099#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200100#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100101#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200102#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +0100103#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200104#include <proto/proxy.h>
105#include <proto/queue.h>
106#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200107#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200108#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200109#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200110#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200111#include <proto/dns.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200112
Emeric Brunfc0421f2012-09-07 17:30:07 +0200113#ifdef USE_OPENSSL
114#include <proto/ssl_sock.h>
115#endif
116
David Carlier4a026412015-06-01 13:57:22 +0200117#ifdef USE_DEVICEATLAS
118#include <import/da.h>
119#endif
120
Thomas Holmes6abded42015-05-12 16:23:58 +0100121#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +0200122#include <import/51d.h>
Thomas Holmes6abded42015-05-12 16:23:58 +0100123#endif
124
Willy Tarreaubaaee002006-06-26 02:48:02 +0200125/*********************************************************************/
126
Cyril Bonté6162c432012-11-10 19:27:47 +0100127extern const struct comp_algo comp_algos[];
128
Willy Tarreaubaaee002006-06-26 02:48:02 +0200129/*********************************************************************/
130
Willy Tarreau477ecd82010-01-03 21:12:30 +0100131/* list of config files */
132static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200133int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100134int relative_pid = 1; /* process id starting at 1 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200135
136/* global options */
137struct global global = {
Willy Tarreau247a13a2012-11-15 17:38:15 +0100138 .nbproc = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200139 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200140 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
Willy Tarreaued9dddd2015-11-26 16:34:56 +0100141#if defined(USE_ZLIB) && defined(DEFAULT_MAXZLIBMEM)
Willy Tarreau5a940372012-12-03 12:10:45 +0100142 .maxzlibmem = DEFAULT_MAXZLIBMEM * 1024U * 1024U,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100143#else
William Lallemand9d5f5482012-11-07 16:12:57 +0100144 .maxzlibmem = 0,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100145#endif
William Lallemandd85f9172012-11-09 17:05:39 +0100146 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100147 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200148 .unix_bind = {
149 .ux = {
150 .uid = -1,
151 .gid = -1,
152 .mode = 0,
153 }
154 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200155 .tune = {
156 .bufsize = BUFSIZE,
Willy Tarreau27097842015-09-28 13:53:23 +0200157 .maxrewrite = -1,
Willy Tarreau43961d52010-10-04 20:39:20 +0200158 .chksize = BUFSIZE,
Willy Tarreaua24adf02014-11-27 01:11:56 +0100159 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200160 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200161#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100162 .sslcachesize = SSLCACHESIZE,
Remi Gacognef46cd6e2014-06-12 14:58:40 +0200163 .ssl_default_dh_param = SSL_DEFAULT_DH_PARAM,
Willy Tarreau03effc12014-02-12 14:55:41 +0100164#ifdef DEFAULT_SSL_MAX_RECORD
165 .ssl_max_record = DEFAULT_SSL_MAX_RECORD,
166#endif
Christopher Faulet31af49d2015-06-09 17:29:50 +0200167 .ssl_ctx_cache = DEFAULT_SSL_CTX_CACHE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200168#endif
William Lallemanda509e4c2012-11-07 16:54:34 +0100169#ifdef USE_ZLIB
170 .zlibmemlevel = 8,
171 .zlibwindowsize = MAX_WBITS,
172#endif
William Lallemandf3747832012-11-09 12:33:10 +0100173 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100174#ifdef DEFAULT_IDLE_TIMER
175 .idle_timer = DEFAULT_IDLE_TIMER,
176#else
177 .idle_timer = 1000, /* 1 second */
178#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200179 },
Emeric Brun76d88952012-10-05 15:47:31 +0200180#ifdef USE_OPENSSL
181#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200182 .maxsslconn = DEFAULT_MAXSSLCONN,
183#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200184#endif
David Carlier4a026412015-06-01 13:57:22 +0200185#ifdef USE_DEVICEATLAS
186 .deviceatlas = {
David Carlierdf3785f2015-12-02 11:22:53 +0000187 .loglevel = 0,
David Carlier4a026412015-06-01 13:57:22 +0200188 .jsonpath = 0,
David Carlier5801a822015-09-25 14:13:44 +0100189 .cookiename = 0,
190 .cookienamelen = 0,
191 .useragentid = 0,
192 .daset = 0,
David Carlier4a026412015-06-01 13:57:22 +0200193 .separator = '|',
194 },
195#endif
Dragan Dosenacd6b1f2015-06-11 21:36:33 +0200196#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +0200197 ._51degrees = {
198 .property_separator = ',',
199 .property_names = LIST_HEAD_INIT(global._51degrees.property_names),
200 .data_file_path = NULL,
201#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
202 .data_set = { },
203#endif
Dragan Dosen9373fc52015-08-07 16:41:23 +0200204 .cache_size = 0,
Dragan Dosen93b38d92015-06-29 16:43:25 +0200205 },
Dragan Dosenacd6b1f2015-06-11 21:36:33 +0200206#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200207 /* others NULL OK */
208};
209
210/*********************************************************************/
211
212int stopping; /* non zero means stopping in progress */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200213int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200214
215/* Here we store informations about the pids of the processes we may pause
216 * or kill. We will send them a signal every 10 ms until we can bind to all
217 * our ports. With 200 retries, that's about 2 seconds.
218 */
219#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200220static int *oldpids = NULL;
221static int oldpids_sig; /* use USR1 or TERM */
222
223/* this is used to drain data, and as a temporary buffer for sprintf()... */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100224struct chunk trash = { };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200225
Willy Tarreau8096de92010-02-26 11:12:27 +0100226/* this buffer is always the same size as standard buffers and is used for
227 * swapping data inside a buffer.
228 */
229char *swap_buffer = NULL;
230
Willy Tarreaubb545b42010-08-25 12:58:59 +0200231int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200232const int zero = 0;
233const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200234const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200235
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100236char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200237char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200238
Willy Tarreau89efaed2013-12-13 15:14:55 +0100239/* used from everywhere just to drain results we don't want to read and which
240 * recent versions of gcc increasingly and annoyingly complain about.
241 */
242int shut_your_big_mouth_gcc_int = 0;
243
Willy Tarreau08ceb102011-07-24 22:58:00 +0200244/* list of the temporarily limited listeners because of lack of resource */
245struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200246struct task *global_listener_queue_task;
247static struct task *manage_global_listener_queue(struct task *t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200248
Willy Tarreauff055502014-04-28 22:27:06 +0200249/* bitfield of a few warnings to emit just once (WARN_*) */
250unsigned int warned = 0;
251
Willy Tarreaubaaee002006-06-26 02:48:02 +0200252/*********************************************************************/
253/* general purpose functions ***************************************/
254/*********************************************************************/
255
256void display_version()
257{
258 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreau8234f6d2016-03-14 00:10:05 +0100259 printf("Copyright 2000-2016 Willy Tarreau <willy@haproxy.org>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200260}
261
Willy Tarreau7b066db2007-12-02 11:28:59 +0100262void display_build_opts()
263{
264 printf("Build options :"
265#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100266 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100267#endif
268#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100269 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100270#endif
271#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100272 "\n CC = " BUILD_CC
273#endif
274#ifdef BUILD_CFLAGS
275 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100276#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100277#ifdef BUILD_OPTIONS
278 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100279#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200280 "\n\nDefault settings :"
281 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
282 "\n\n",
283 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200284
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100285 printf("Encrypted password support via crypt(3): "
286#ifdef CONFIG_HAP_CRYPT
287 "yes"
288#else
289 "no"
290#endif
291 "\n");
292
Cyril Bonté6162c432012-11-10 19:27:47 +0100293#ifdef USE_ZLIB
294 printf("Built with zlib version : " ZLIB_VERSION "\n");
Lukas Tribus255cc512016-09-12 21:42:14 +0000295 printf("Running on zlib version : %s\n", zlibVersion());
Willy Tarreau86ac1762015-10-13 16:46:28 +0200296#elif defined(USE_SLZ)
297 printf("Built with libslz for stateless compression.\n");
Cyril Bonté6162c432012-11-10 19:27:47 +0100298#else /* USE_ZLIB */
Willy Tarreau86ac1762015-10-13 16:46:28 +0200299 printf("Built without compression support (neither USE_ZLIB nor USE_SLZ are set)\n");
Cyril Bonté6162c432012-11-10 19:27:47 +0100300#endif
301 printf("Compression algorithms supported :");
302 {
303 int i;
304
Willy Tarreau615105e2015-03-28 16:40:46 +0100305 for (i = 0; comp_algos[i].cfg_name; i++) {
306 printf("%s %s(\"%s\")", (i == 0 ? "" : ","), comp_algos[i].cfg_name, comp_algos[i].ua_name);
Cyril Bonté6162c432012-11-10 19:27:47 +0100307 }
308 if (i == 0) {
309 printf("none");
310 }
311 }
312 printf("\n");
313
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200314#ifdef USE_OPENSSL
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200315 printf("Built with OpenSSL version : "
316#ifdef OPENSSL_IS_BORINGSSL
317 "BoringSSL\n");
318#else /* OPENSSL_IS_BORINGSSL */
319 OPENSSL_VERSION_TEXT "\n");
Willy Tarreau0cff0db2013-04-26 18:16:13 +0200320 printf("Running on OpenSSL version : %s%s\n",
321 SSLeay_version(SSLEAY_VERSION),
322 ((OPENSSL_VERSION_NUMBER ^ SSLeay()) >> 8) ? " (VERSIONS DIFFER!)" : "");
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200323#endif
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200324 printf("OpenSSL library supports TLS extensions : "
325#if OPENSSL_VERSION_NUMBER < 0x00907000L
326 "no (library version too old)"
327#elif defined(OPENSSL_NO_TLSEXT)
328 "no (disabled via OPENSSL_NO_TLSEXT)"
329#else
330 "yes"
331#endif
332 "\n");
333 printf("OpenSSL library supports SNI : "
334#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
335 "yes"
336#else
337#ifdef OPENSSL_NO_TLSEXT
338 "no (because of OPENSSL_NO_TLSEXT)"
339#else
340 "no (version might be too old, 0.9.8f min needed)"
341#endif
342#endif
343 "\n");
344 printf("OpenSSL library supports prefer-server-ciphers : "
345#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
346 "yes"
347#else
348 "no (0.9.7 or later needed)"
349#endif
350 "\n");
351#else /* USE_OPENSSL */
352 printf("Built without OpenSSL support (USE_OPENSSL not set)\n");
353#endif
Lukas Tribusea68d362013-04-04 12:24:16 +0200354
355#ifdef USE_PCRE
Lukas Tribusdcbc5c52016-09-12 21:42:07 +0000356 printf("Built with PCRE version : %s\n", (HAP_XSTRING(Z PCRE_PRERELEASE)[1] == 0)?
357 HAP_XSTRING(PCRE_MAJOR.PCRE_MINOR PCRE_DATE) :
358 HAP_XSTRING(PCRE_MAJOR.PCRE_MINOR) HAP_XSTRING(PCRE_PRERELEASE PCRE_DATE));
Lukas Tribusd64788d2016-09-12 21:42:00 +0000359 printf("Running on PCRE version : %s", pcre_version());
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200360 printf("\nPCRE library supports JIT : ");
361#ifdef USE_PCRE_JIT
362 {
363 int r;
364 pcre_config(PCRE_CONFIG_JIT, &r);
365 if (r)
366 printf("yes");
367 else
368 printf("no (libpcre build without JIT?)");
369 }
Lukas Tribusea68d362013-04-04 12:24:16 +0200370#else
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200371 printf("no (USE_PCRE_JIT not set)");
Lukas Tribusea68d362013-04-04 12:24:16 +0200372#endif
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200373 printf("\n");
Lukas Tribusea68d362013-04-04 12:24:16 +0200374#else
375 printf("Built without PCRE support (using libc's regex instead)\n");
376#endif
377
Cyril Bonté47eb2192015-03-02 00:08:39 +0100378#ifdef USE_LUA
379 printf("Built with Lua version : %s\n", LUA_RELEASE);
380#else
381 printf("Built without Lua support\n");
382#endif
383
Willy Tarreau29fbe512015-08-20 19:35:14 +0200384#if defined(CONFIG_HAP_TRANSPARENT)
Pieter Baauwd551fb52013-05-08 22:49:23 +0200385 printf("Built with transparent proxy support using:"
Pieter Baauwd551fb52013-05-08 22:49:23 +0200386#if defined(IP_TRANSPARENT)
387 " IP_TRANSPARENT"
388#endif
389#if defined(IPV6_TRANSPARENT)
390 " IPV6_TRANSPARENT"
391#endif
392#if defined(IP_FREEBIND)
393 " IP_FREEBIND"
394#endif
Pieter Baauwff30b662013-05-08 23:22:39 +0200395#if defined(IP_BINDANY)
396 " IP_BINDANY"
397#endif
398#if defined(IPV6_BINDANY)
399 " IPV6_BINDANY"
400#endif
Pieter Baauw1eb75922013-05-08 23:30:23 +0200401#if defined(SO_BINDANY)
402 " SO_BINDANY"
403#endif
Pieter Baauwd551fb52013-05-08 22:49:23 +0200404 "\n");
405#endif
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100406
407#if defined(CONFIG_HAP_NS)
408 printf("Built with network namespace support\n");
409#endif
Thomas Holmes6abded42015-05-12 16:23:58 +0100410
David Carlierdf3785f2015-12-02 11:22:53 +0000411#ifdef USE_DEVICEATLAS
412 printf("Built with DeviceAtlas support\n");
413#endif
Thomas Holmes6abded42015-05-12 16:23:58 +0100414#ifdef USE_51DEGREES
415 printf("Built with 51Degrees support\n");
416#endif
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100417 putchar('\n');
418
Willy Tarreaube5b6852009-10-03 18:57:08 +0200419 list_pollers(stdout);
420 putchar('\n');
Christopher Fauletb3f4e142016-03-07 12:46:38 +0100421 list_filters(stdout);
422 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100423}
424
Willy Tarreaubaaee002006-06-26 02:48:02 +0200425/*
426 * This function prints the command line usage and exits
427 */
428void usage(char *name)
429{
430 display_version();
431 fprintf(stderr,
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200432 "Usage : %s [-f <cfgfile|cfgdir>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200433 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200434 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100435 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200436 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200437 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200438 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200439 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200440 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200441 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200442 " -n sets the maximum total # of connections (%d)\n"
443 " -m limits the usable amount of memory (in MB)\n"
444 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200445 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200446 " -p writes pids of all children to this file\n"
447#if defined(ENABLE_EPOLL)
448 " -de disables epoll() usage even when available\n"
449#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200450#if defined(ENABLE_KQUEUE)
451 " -dk disables kqueue() usage even when available\n"
452#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200453#if defined(ENABLE_POLL)
454 " -dp disables poll() usage even when available\n"
455#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200456#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100457 " -dS disables splice usage (broken on old kernels)\n"
458#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200459#if defined(USE_GETADDRINFO)
460 " -dG disables getaddrinfo() usage\n"
461#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000462#if defined(SO_REUSEPORT)
463 " -dR disables SO_REUSEPORT usage\n"
464#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100465 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200466 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200467 "\n",
468 name, DEFAULT_MAXCONN, cfg_maxpconn);
469 exit(1);
470}
471
472
473
474/*********************************************************************/
475/* more specific functions ***************************************/
476/*********************************************************************/
477
478/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200479 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
480 * a signal zero to all subscribers. This means that it's as easy as
481 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200482 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200483void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200484{
485 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200486 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200487 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200488}
489
490/*
491 * upon SIGTTOU, we pause everything
492 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200493void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200494{
495 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200496 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200497}
498
499/*
500 * upon SIGTTIN, let's have a soft stop.
501 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200502void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200503{
Willy Tarreaube58c382011-07-24 18:28:10 +0200504 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200505}
506
507/*
508 * this function dumps every server's state when the process receives SIGHUP.
509 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200510void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200511{
512 struct proxy *p = proxy;
513
514 Warning("SIGHUP received, dumping servers states.\n");
515 while (p) {
516 struct server *s = p->srv;
517
518 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
519 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100520 chunk_printf(&trash,
521 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
522 p->id, s->id,
Willy Tarreau892337c2014-05-13 23:41:20 +0200523 (s->state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100524 s->cur_sess, s->nbpend, s->counters.cum_sess);
525 Warning("%s\n", trash.str);
526 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200527 s = s->next;
528 }
529
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200530 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
531 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100532 chunk_printf(&trash,
533 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
534 p->id,
535 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 +0200536 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100537 chunk_printf(&trash,
538 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
539 p->id,
540 (p->srv_bck) ? "is running on backup servers" : "has no server available",
541 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 +0200542 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100543 chunk_printf(&trash,
544 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
545 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
546 p->id, p->srv_act, p->srv_bck,
547 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 +0200548 }
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100549 Warning("%s\n", trash.str);
550 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200551
552 p = p->next;
553 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200554}
555
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200556void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200557{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200558 /* dump memory usage then free everything possible */
559 dump_pools();
560 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200561}
562
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200563/* This function check if cfg_cfgfiles containes directories.
564 * If it find one, it add all the files (and only files) it containes
565 * in cfg_cfgfiles in place of the directory (and remove the directory).
566 * It add the files in lexical order.
567 * It add only files with .cfg extension.
568 * It doesn't add files with name starting with '.'
569 */
570void cfgfiles_expand_directories(void)
571{
572 struct wordlist *wl, *wlb;
573 char *err = NULL;
574
575 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
576 struct stat file_stat;
577 struct dirent **dir_entries = NULL;
578 int dir_entries_nb;
579 int dir_entries_it;
580
581 if (stat(wl->s, &file_stat)) {
582 Alert("Cannot open configuration file/directory %s : %s\n",
583 wl->s,
584 strerror(errno));
585 exit(1);
586 }
587
588 if (!S_ISDIR(file_stat.st_mode))
589 continue;
590
591 /* from this point wl->s is a directory */
592
593 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
594 if (dir_entries_nb < 0) {
595 Alert("Cannot open configuration directory %s : %s\n",
596 wl->s,
597 strerror(errno));
598 exit(1);
599 }
600
601 /* for each element in the directory wl->s */
602 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
603 struct dirent *dir_entry = dir_entries[dir_entries_it];
604 char *filename = NULL;
605 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
606
607 /* don't add filename that begin with .
608 * only add filename with .cfg extention
609 */
610 if (dir_entry->d_name[0] == '.' ||
611 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
612 goto next_dir_entry;
613
614 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
615 Alert("Cannot load configuration files %s : out of memory.\n",
616 filename);
617 exit(1);
618 }
619
620 if (stat(filename, &file_stat)) {
621 Alert("Cannot open configuration file %s : %s\n",
622 wl->s,
623 strerror(errno));
624 exit(1);
625 }
626
627 /* don't add anything else than regular file in cfg_cfgfiles
628 * this way we avoid loops
629 */
630 if (!S_ISREG(file_stat.st_mode))
631 goto next_dir_entry;
632
633 if (!list_append_word(&wl->list, filename, &err)) {
634 Alert("Cannot load configuration files %s : %s\n",
635 filename,
636 err);
637 exit(1);
638 }
639
640next_dir_entry:
641 free(filename);
642 free(dir_entry);
643 }
644
645 free(dir_entries);
646
647 /* remove the current directory (wl) from cfg_cfgfiles */
648 free(wl->s);
649 LIST_DEL(&wl->list);
650 free(wl);
651 }
652
653 free(err);
654}
655
Willy Tarreaubaaee002006-06-26 02:48:02 +0200656/*
657 * This function initializes all the necessary variables. It only returns
658 * if everything is OK. If something fails, it exits.
659 */
660void init(int argc, char **argv)
661{
Willy Tarreaubaaee002006-06-26 02:48:02 +0200662 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200663 char *tmp;
664 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200665 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +0200666 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100667 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000668 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200669 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200670 struct proxy *px;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200671
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100672 chunk_init(&trash, malloc(global.tune.bufsize), global.tune.bufsize);
Willy Tarreau2819e992013-12-13 14:41:10 +0100673 alloc_trash_buffers(global.tune.bufsize);
David du Colombier7af46052012-05-16 14:16:48 +0200674
Emeric Brun2b920a12010-09-23 18:30:22 +0200675 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
676 * the string in case of truncation, and at least FreeBSD appears not to do
677 * it.
678 */
679 memset(hostname, 0, sizeof(hostname));
680 gethostname(hostname, sizeof(hostname) - 1);
681 memset(localpeer, 0, sizeof(localpeer));
682 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
683
Willy Tarreaubaaee002006-06-26 02:48:02 +0200684 /*
685 * Initialize the previously static variables.
686 */
687
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100688 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200689
690
691#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +0100692 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200693#endif
694
Benoit GARNIERb413c2a2016-03-27 11:08:03 +0200695 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200696 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200697 start_date = now;
698
Willy Tarreau84310e22014-02-14 11:59:04 +0100699 srandom(now_ms - getpid());
700
Dragan Dosen835b9212016-02-12 13:23:03 +0100701 init_log();
Willy Tarreau29857942009-05-10 09:01:21 +0200702 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100703 if (init_acl() != 0)
704 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200705 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +0200706 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200707 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200708 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +0200709 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200710 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100711 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200712
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100713 /* Initialise lua. */
714 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100715
Willy Tarreau43b78992009-01-25 15:42:27 +0100716 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200717#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100718 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200719#endif
720#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100721 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200722#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200723#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100724 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200725#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200726#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100727 global.tune.options |= GTUNE_USE_SPLICE;
728#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200729#if defined(USE_GETADDRINFO)
730 global.tune.options |= GTUNE_USE_GAI;
731#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000732#if defined(SO_REUSEPORT)
733 global.tune.options |= GTUNE_USE_REUSEPORT;
734#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200735
736 pid = getpid();
737 progname = *argv;
738 while ((tmp = strchr(progname, '/')) != NULL)
739 progname = tmp + 1;
740
Kevinm48936af2010-12-22 16:08:21 +0000741 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +0200742 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +0000743
Willy Tarreaubaaee002006-06-26 02:48:02 +0200744 argc--; argv++;
745 while (argc > 0) {
746 char *flag;
747
748 if (**argv == '-') {
749 flag = *argv+1;
750
751 /* 1 arg */
752 if (*flag == 'v') {
753 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100754 if (flag[1] == 'v') /* -vv */
755 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200756 exit(0);
757 }
758#if defined(ENABLE_EPOLL)
759 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100760 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200761#endif
762#if defined(ENABLE_POLL)
763 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100764 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200765#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200766#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200767 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100768 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200769#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200770#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100771 else if (*flag == 'd' && flag[1] == 'S')
772 global.tune.options &= ~GTUNE_USE_SPLICE;
773#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200774#if defined(USE_GETADDRINFO)
775 else if (*flag == 'd' && flag[1] == 'G')
776 global.tune.options &= ~GTUNE_USE_GAI;
777#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000778#if defined(SO_REUSEPORT)
779 else if (*flag == 'd' && flag[1] == 'R')
780 global.tune.options &= ~GTUNE_USE_REUSEPORT;
781#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100782 else if (*flag == 'd' && flag[1] == 'V')
783 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200784 else if (*flag == 'V')
785 arg_mode |= MODE_VERBOSE;
786 else if (*flag == 'd' && flag[1] == 'b')
787 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +0200788 else if (*flag == 'd' && flag[1] == 'M')
789 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreaubaaee002006-06-26 02:48:02 +0200790 else if (*flag == 'd')
791 arg_mode |= MODE_DEBUG;
792 else if (*flag == 'c')
793 arg_mode |= MODE_CHECK;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100794 else if (*flag == 'D') {
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200795 arg_mode |= MODE_DAEMON;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100796 if (flag[1] == 's') /* -Ds */
797 arg_mode |= MODE_SYSTEMD;
798 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200799 else if (*flag == 'q')
800 arg_mode |= MODE_QUIET;
801 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
802 /* list of pids to finish ('f') or terminate ('t') */
803
804 if (flag[1] == 'f')
805 oldpids_sig = SIGUSR1; /* finish then exit */
806 else
807 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200808
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200809 while (argc > 1 && argv[1][0] != '-') {
810 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
811 if (!oldpids) {
812 Alert("Cannot allocate old pid : out of memory.\n");
813 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200814 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200815 argc--; argv++;
816 oldpids[nb_oldpids] = atol(*argv);
817 if (oldpids[nb_oldpids] <= 0)
818 usage(progname);
819 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200820 }
821 }
Willy Tarreaua088d312015-10-08 11:58:48 +0200822 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
823 /* now that's a cfgfile list */
824 argv++; argc--;
825 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +0200826 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
827 Alert("Cannot load configuration file/directory %s : %s\n",
828 *argv,
829 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +0200830 exit(1);
831 }
Willy Tarreaua088d312015-10-08 11:58:48 +0200832 argv++; argc--;
833 }
834 break;
835 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200836 else { /* >=2 args */
837 argv++; argc--;
838 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200839 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200840
841 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200842 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200843 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +0100844 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200845 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200846 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200847 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +0200848 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
849 Alert("Cannot load configuration file/directory %s : %s\n",
850 *argv,
851 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200852 exit(1);
853 }
Willy Tarreau5d01a632009-06-22 16:02:30 +0200854 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200855 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200856 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200857 }
858 }
859 }
860 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200861 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200862 argv++; argc--;
863 }
864
865 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100866 (arg_mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_FOREGROUND | MODE_VERBOSE
Willy Tarreaubaaee002006-06-26 02:48:02 +0200867 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
868
Willy Tarreau576132e2011-09-10 19:26:56 +0200869 if (change_dir && chdir(change_dir) < 0) {
870 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
871 exit(1);
872 }
873
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200874 /* handle cfgfiles that are actualy directories */
875 cfgfiles_expand_directories();
876
877 if (LIST_ISEMPTY(&cfg_cfgfiles))
878 usage(progname);
879
Willy Tarreaubaaee002006-06-26 02:48:02 +0200880 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200881
882 init_default_instance();
883
Willy Tarreau477ecd82010-01-03 21:12:30 +0100884 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100885 int ret;
886
Willy Tarreau477ecd82010-01-03 21:12:30 +0100887 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100888 if (ret == -1) {
889 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100890 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100891 exit(1);
892 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100893 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100894 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100895 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200896 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200897 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200898 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200899
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100900 pattern_finalize_config();
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +0200901#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
902 tlskeys_finalize_config();
903#endif
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100904
Willy Tarreaubb925012009-07-23 13:36:36 +0200905 err_code |= check_config_validity();
906 if (err_code & (ERR_ABORT|ERR_FATAL)) {
907 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200908 exit(1);
909 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200910
Willy Tarreau70060452015-12-14 12:46:07 +0100911 /* recompute the amount of per-process memory depending on nbproc and
912 * the shared SSL cache size (allowed to exist in all processes).
913 */
914 if (global.rlimit_memmax_all) {
915#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
916 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
917
918 global.rlimit_memmax =
919 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
920 ssl_cache_bytes) / global.nbproc +
921 ssl_cache_bytes + 1048575LL) / 1048576LL;
922#else
923 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
924#endif
925 }
926
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100927#ifdef CONFIG_HAP_NS
928 err_code |= netns_init();
929 if (err_code & (ERR_ABORT|ERR_FATAL)) {
930 Alert("Failed to initialize namespace support.\n");
931 exit(1);
932 }
933#endif
934
Willy Tarreaubaaee002006-06-26 02:48:02 +0200935 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100936 struct peers *pr;
937 struct proxy *px;
938
939 for (pr = peers; pr; pr = pr->next)
940 if (pr->peers_fe)
941 break;
942
943 for (px = proxy; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +0200944 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100945 break;
946
947 if (pr || px) {
948 /* At least one peer or one listener has been found */
949 qfprintf(stdout, "Configuration file is valid\n");
950 exit(0);
951 }
952 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
953 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200954 }
955
Baptiste Assmannfecd2b52015-08-14 16:20:52 +0200956 /* Apply server states */
957 apply_server_state();
958
Willy Tarreaue9b26022011-08-01 20:57:55 +0200959 global_listener_queue_task = task_new();
960 if (!global_listener_queue_task) {
961 Alert("Out of memory when initializing global task\n");
962 exit(1);
963 }
964 /* very simple initialization, users will queue the task if needed */
965 global_listener_queue_task->context = NULL; /* not even a context! */
966 global_listener_queue_task->process = manage_global_listener_queue;
967 global_listener_queue_task->expire = TICK_ETERNITY;
968
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200969 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200970 init_buffer();
David Carlier4a026412015-06-01 13:57:22 +0200971#if defined(USE_DEVICEATLAS)
972 init_deviceatlas();
973#endif
Dragan Dosen93b38d92015-06-29 16:43:25 +0200974#ifdef USE_51DEGREES
975 init_51degrees();
976#endif
Willy Tarreau8280d642009-09-23 23:37:52 +0200977
Christopher Fauletd7c91962015-04-30 11:48:27 +0200978 for (px = proxy; px; px = px->next) {
979 err_code |= flt_init(px);
980 if (err_code & (ERR_ABORT|ERR_FATAL)) {
981 Alert("Failed to initialize filters for proxy '%s'.\n",
982 px->id);
983 exit(1);
984 }
985 }
986
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200987 if (start_checks() < 0)
988 exit(1);
989
Willy Tarreaubaaee002006-06-26 02:48:02 +0200990 if (cfg_maxconn > 0)
991 global.maxconn = cfg_maxconn;
992
993 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200994 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200995 global.pidfile = strdup(cfg_pidfile);
996 }
997
Willy Tarreaud0256482015-01-15 21:45:22 +0100998 /* Now we want to compute the maxconn and possibly maxsslconn values.
999 * It's a bit tricky. If memmax is not set, maxconn defaults to
1000 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
1001 *
1002 * If memmax is set, then it depends on which values are set. If
1003 * maxsslconn is set, we use memmax to determine how many cleartext
1004 * connections may be added, and set maxconn to the sum of the two.
1005 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1006 * the remaining amount of memory between memmax and the cleartext
1007 * connections. If neither are set, then it is considered that all
1008 * connections are SSL-capable, and maxconn is computed based on this,
1009 * then maxsslconn accordingly. We need to know if SSL is used on the
1010 * frontends, backends, or both, because when it's used on both sides,
1011 * we need twice the value for maxsslconn, but we only count the
1012 * handshake once since it is not performed on the two sides at the
1013 * same time (frontend-side is terminated before backend-side begins).
1014 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001015 * ssl_handshake_cost during its initialization. In any case, if
1016 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1017 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001018 */
1019 if (!global.rlimit_memmax) {
1020 if (global.maxconn == 0) {
1021 global.maxconn = DEFAULT_MAXCONN;
1022 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1023 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1024 }
1025 }
1026#ifdef USE_OPENSSL
1027 else if (!global.maxconn && !global.maxsslconn &&
1028 (global.ssl_used_frontend || global.ssl_used_backend)) {
1029 /* memmax is set, compute everything automatically. Here we want
1030 * to ensure that all SSL connections will be served. We take
1031 * care of the number of sides where SSL is used, and consider
1032 * the worst case : SSL used on both sides and doing a handshake
1033 * simultaneously. Note that we can't have more than maxconn
1034 * handshakes at a time by definition, so for the worst case of
1035 * two SSL conns per connection, we count a single handshake.
1036 */
1037 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1038 int64_t mem = global.rlimit_memmax * 1048576ULL;
1039
1040 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1041 mem -= global.maxzlibmem;
1042 mem = mem * MEM_USABLE_RATIO;
1043
1044 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001045 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001046 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1047 global.ssl_handshake_max_cost); // 1 handshake per connection max
1048
1049 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001050#ifdef SYSTEM_MAXCONN
1051 if (global.maxconn > DEFAULT_MAXCONN)
1052 global.maxconn = DEFAULT_MAXCONN;
1053#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001054 global.maxsslconn = sides * global.maxconn;
1055 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1056 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1057 global.maxconn, global.maxsslconn);
1058 }
1059 else if (!global.maxsslconn &&
1060 (global.ssl_used_frontend || global.ssl_used_backend)) {
1061 /* memmax and maxconn are known, compute maxsslconn automatically.
1062 * maxsslconn being forced, we don't know how many of it will be
1063 * on each side if both sides are being used. The worst case is
1064 * when all connections use only one SSL instance because
1065 * handshakes may be on two sides at the same time.
1066 */
1067 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1068 int64_t mem = global.rlimit_memmax * 1048576ULL;
1069 int64_t sslmem;
1070
1071 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1072 mem -= global.maxzlibmem;
1073 mem = mem * MEM_USABLE_RATIO;
1074
Willy Tarreau87b09662015-04-03 00:22:06 +02001075 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001076 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1077 global.maxsslconn = round_2dig(global.maxsslconn);
1078
1079 if (sslmem <= 0 || global.maxsslconn < sides) {
1080 Alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1081 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1082 "without SSL is %d, but %d was found and SSL is in use.\n",
1083 global.rlimit_memmax,
Willy Tarreau87b09662015-04-03 00:22:06 +02001084 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
Willy Tarreaud0256482015-01-15 21:45:22 +01001085 global.maxconn);
1086 exit(1);
1087 }
1088
1089 if (global.maxsslconn > sides * global.maxconn)
1090 global.maxsslconn = sides * global.maxconn;
1091
1092 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1093 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1094 }
1095#endif
1096 else if (!global.maxconn) {
1097 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1098 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1099 int64_t mem = global.rlimit_memmax * 1048576ULL;
1100 int64_t clearmem;
1101
1102 if (global.ssl_used_frontend || global.ssl_used_backend)
1103 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1104
1105 mem -= global.maxzlibmem;
1106 mem = mem * MEM_USABLE_RATIO;
1107
1108 clearmem = mem;
1109 if (sides)
1110 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1111
Willy Tarreau87b09662015-04-03 00:22:06 +02001112 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001113 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001114#ifdef SYSTEM_MAXCONN
1115 if (global.maxconn > DEFAULT_MAXCONN)
1116 global.maxconn = DEFAULT_MAXCONN;
1117#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001118
1119 if (clearmem <= 0 || !global.maxconn) {
1120 Alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
1121 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1122 "is %d, but %d was found.\n",
1123 global.rlimit_memmax,
1124 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
1125 global.maxsslconn);
1126 exit(1);
1127 }
1128
1129 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1130 if (sides && global.maxsslconn > sides * global.maxconn) {
1131 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
1132 "to be limited to %d. Better reduce global.maxsslconn to get more "
1133 "room for extra connections.\n", global.maxsslconn, global.maxconn);
1134 }
1135 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
1136 }
1137 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001138
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001139 if (!global.maxpipes) {
1140 /* maxpipes not specified. Count how many frontends and backends
1141 * may be using splicing, and bound that to maxconn.
1142 */
1143 struct proxy *cur;
1144 int nbfe = 0, nbbe = 0;
1145
1146 for (cur = proxy; cur; cur = cur->next) {
1147 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
1148 if (cur->cap & PR_CAP_FE)
1149 nbfe += cur->maxconn;
1150 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +01001151 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001152 }
1153 }
1154 global.maxpipes = MAX(nbfe, nbbe);
1155 if (global.maxpipes > global.maxconn)
1156 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +01001157 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001158 }
1159
1160
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001161 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001162 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01001163 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001164
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001165 if (global.stats_fe)
1166 global.maxsock += global.stats_fe->maxconn;
1167
1168 if (peers) {
1169 /* peers also need to bypass global maxconn */
1170 struct peers *p = peers;
1171
1172 for (p = peers; p; p = p->next)
1173 if (p->peers_fe)
1174 global.maxsock += p->peers_fe->maxconn;
1175 }
1176
Willy Tarreau1db37712007-06-03 17:16:49 +02001177 if (global.tune.maxpollevents <= 0)
1178 global.tune.maxpollevents = MAX_POLL_EVENTS;
1179
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01001180 if (global.tune.recv_enough == 0)
1181 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
1182
Willy Tarreau27097842015-09-28 13:53:23 +02001183 if (global.tune.maxrewrite < 0)
1184 global.tune.maxrewrite = MAXREWRITE;
1185
Willy Tarreau27a674e2009-08-17 07:23:33 +02001186 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
1187 global.tune.maxrewrite = global.tune.bufsize / 2;
1188
Willy Tarreaubaaee002006-06-26 02:48:02 +02001189 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
1190 /* command line debug mode inhibits configuration mode */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001191 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001192 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
1193 }
1194
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001195 if (arg_mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001196 /* command line daemon mode inhibits foreground and debug modes mode */
1197 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001198 global.mode |= (arg_mode & (MODE_DAEMON | MODE_SYSTEMD));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001199 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001200
1201 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001202
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001203 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET))) {
1204 Warning("<debug> mode incompatible with <quiet>, <daemon> and <systemd>. Keeping <debug> only.\n");
1205 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001206 }
1207
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001208 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_SYSTEMD))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001209 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
1210 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
1211 global.nbproc = 1;
1212 }
1213
1214 if (global.nbproc < 1)
1215 global.nbproc = 1;
1216
Vincent Bernat3c2f2f22016-04-03 13:48:42 +02001217 swap_buffer = calloc(1, global.tune.bufsize);
1218 get_http_auth_buff = calloc(1, global.tune.bufsize);
Thierry FOURNIER7e25df32015-07-24 19:31:59 +02001219 static_table_key = calloc(1, sizeof(*static_table_key));
Willy Tarreau8096de92010-02-26 11:12:27 +01001220
Vincent Bernat3c2f2f22016-04-03 13:48:42 +02001221 fdinfo = calloc(1, sizeof(struct fdinfo) * (global.maxsock));
1222 fdtab = calloc(1, sizeof(struct fdtab) * (global.maxsock));
Willy Tarreauef1d1f82007-04-16 00:25:25 +02001223 /*
1224 * Note: we could register external pollers here.
1225 * Built-in pollers have been registered before main().
1226 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001227
Willy Tarreau43b78992009-01-25 15:42:27 +01001228 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001229 disable_poller("kqueue");
1230
Willy Tarreau43b78992009-01-25 15:42:27 +01001231 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001232 disable_poller("epoll");
1233
Willy Tarreau43b78992009-01-25 15:42:27 +01001234 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001235 disable_poller("poll");
1236
Willy Tarreau43b78992009-01-25 15:42:27 +01001237 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001238 disable_poller("select");
1239
1240 /* Note: we could disable any poller by name here */
1241
Christopher Fauletb3f4e142016-03-07 12:46:38 +01001242 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02001243 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01001244 fprintf(stderr, "\n");
1245 list_filters(stderr);
1246 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001247
Willy Tarreau4f60f162007-04-08 16:39:58 +02001248 if (!init_pollers()) {
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001249 Alert("No polling mechanism available.\n"
1250 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
1251 " is too low on this platform to support maxconn and the number of listeners\n"
1252 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
1253 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
Prach Pongpanichb837e682013-05-14 20:56:28 +02001254 " global maxconn setting to accommodate the system's limitation. For reference,\n"
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001255 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
1256 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
1257 " check build settings using 'haproxy -vv'.\n\n",
1258 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001259 exit(1);
1260 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001261 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1262 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001263 }
1264
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001265 if (!global.node)
1266 global.node = strdup(hostname);
1267
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01001268 if (!hlua_post_init())
1269 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01001270
Baptiste Assmann325137d2015-04-13 23:40:55 +02001271 /* initialize structures for name resolution */
1272 if (!dns_init_resolvers())
1273 exit(1);
Maxime de Roucy0f503922016-05-13 23:52:55 +02001274
1275 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001276}
1277
Simon Horman6fb82592011-07-15 13:14:11 +09001278static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09001279{
Simon Hormanac821422011-07-15 13:14:09 +09001280 struct acl_term_suite *suite, *suiteb;
1281 struct acl_term *term, *termb;
1282
Simon Horman6fb82592011-07-15 13:14:11 +09001283 if (!cond)
1284 return;
1285
1286 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
1287 list_for_each_entry_safe(term, termb, &suite->terms, list) {
1288 LIST_DEL(&term->list);
1289 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09001290 }
Simon Horman6fb82592011-07-15 13:14:11 +09001291 LIST_DEL(&suite->list);
1292 free(suite);
1293 }
1294
1295 free(cond);
1296}
1297
1298static void deinit_tcp_rules(struct list *rules)
1299{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02001300 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09001301
1302 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09001303 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09001304 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09001305 free(trule);
1306 }
1307}
1308
Willy Tarreau12785782012-04-27 21:37:17 +02001309static void deinit_sample_arg(struct arg *p)
Simon Horman6fb82592011-07-15 13:14:11 +09001310{
Willy Tarreauf9954102012-04-20 14:03:29 +02001311 struct arg *p_back = p;
1312
Simon Horman6fb82592011-07-15 13:14:11 +09001313 if (!p)
1314 return;
1315
Willy Tarreauf9954102012-04-20 14:03:29 +02001316 while (p->type != ARGT_STOP) {
Willy Tarreau496aa012012-06-01 10:38:29 +02001317 if (p->type == ARGT_STR || p->unresolved) {
Willy Tarreauf9954102012-04-20 14:03:29 +02001318 free(p->data.str.str);
1319 p->data.str.str = NULL;
Willy Tarreau496aa012012-06-01 10:38:29 +02001320 p->unresolved = 0;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001321 }
Willy Tarreau46947782015-01-19 19:00:58 +01001322 else if (p->type == ARGT_REG) {
1323 if (p->data.reg) {
1324 regex_free(p->data.reg);
1325 free(p->data.reg);
1326 p->data.reg = NULL;
1327 }
1328 }
Willy Tarreauf9954102012-04-20 14:03:29 +02001329 p++;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001330 }
Simon Horman6fb82592011-07-15 13:14:11 +09001331
Willy Tarreau2e845be2012-10-19 19:49:09 +02001332 if (p_back != empty_arg_list)
1333 free(p_back);
Simon Horman6fb82592011-07-15 13:14:11 +09001334}
1335
1336static void deinit_stick_rules(struct list *rules)
1337{
1338 struct sticking_rule *rule, *ruleb;
1339
1340 list_for_each_entry_safe(rule, ruleb, rules, list) {
1341 LIST_DEL(&rule->list);
1342 deinit_acl_cond(rule->cond);
1343 if (rule->expr) {
Willy Tarreau12785782012-04-27 21:37:17 +02001344 struct sample_conv_expr *conv_expr, *conv_exprb;
Simon Horman6fb82592011-07-15 13:14:11 +09001345 list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list)
Willy Tarreau12785782012-04-27 21:37:17 +02001346 deinit_sample_arg(conv_expr->arg_p);
1347 deinit_sample_arg(rule->expr->arg_p);
Simon Horman6fb82592011-07-15 13:14:11 +09001348 free(rule->expr);
1349 }
1350 free(rule);
1351 }
1352}
1353
Willy Tarreaubaaee002006-06-26 02:48:02 +02001354void deinit(void)
1355{
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001356 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001357 struct cap_hdr *h,*h_next;
1358 struct server *s,*s_next;
1359 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001360 struct acl_cond *cond, *condb;
1361 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001362 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001363 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001364 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001365 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001366 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01001367 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001368 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02001369 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01001370 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001371 struct bind_conf *bind_conf, *bind_back;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001372 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001373
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001374 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001375 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02001376 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001377 free(p->id);
1378 free(p->check_req);
1379 free(p->cookie_name);
1380 free(p->cookie_domain);
1381 free(p->url_param_name);
1382 free(p->capture_name);
1383 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09001384 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02001385 if (p->conf.logformat_string != default_http_log_format &&
1386 p->conf.logformat_string != default_tcp_log_format &&
1387 p->conf.logformat_string != clf_http_log_format)
1388 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02001389
Willy Tarreau62a61232013-04-12 18:13:46 +02001390 free(p->conf.lfs_file);
1391 free(p->conf.uniqueid_format_string);
1392 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08001393 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001394
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001395 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1396 free(p->conf.logformat_sd_string);
1397 free(p->conf.lfsd_file);
1398
Willy Tarreaua534fea2008-08-03 12:19:50 +02001399 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02001400 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001401
Willy Tarreauf4f04122010-01-28 18:10:50 +01001402 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
1403 LIST_DEL(&cwl->list);
1404 free(cwl->s);
1405 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001406 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001407
Willy Tarreauf4f04122010-01-28 18:10:50 +01001408 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
1409 LIST_DEL(&cwl->list);
1410 free(cwl->s);
1411 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001412 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001413
Willy Tarreaub80c2302007-11-30 20:51:32 +01001414 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
1415 LIST_DEL(&cond->list);
1416 prune_acl_cond(cond);
1417 free(cond);
1418 }
1419
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001420 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001421 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001422 regex_free(exp->preg);
1423 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001424 }
1425
Willy Tarreau98d04852015-05-26 12:18:29 +02001426 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001427 expb = exp;
1428 exp = exp->next;
1429 free(expb);
1430 }
1431
1432 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001433 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001434 regex_free(exp->preg);
1435 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001436 }
1437
Willy Tarreau98d04852015-05-26 12:18:29 +02001438 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001439 expb = exp;
1440 exp = exp->next;
1441 free(expb);
1442 }
1443
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001444 /* build a list of unique uri_auths */
1445 if (!ua)
1446 ua = p->uri_auth;
1447 else {
1448 /* check if p->uri_auth is unique */
1449 for (uap = ua; uap; uap=uap->next)
1450 if (uap == p->uri_auth)
1451 break;
1452
Willy Tarreauaccc4e12008-06-24 11:14:45 +02001453 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001454 /* add it, if it is */
1455 p->uri_auth->next = ua;
1456 ua = p->uri_auth;
1457 }
1458 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001459
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001460 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
1461 LIST_DEL(&acl->list);
1462 prune_acl(acl);
1463 free(acl);
1464 }
1465
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001466 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
1467 LIST_DEL(&srule->list);
1468 prune_acl_cond(srule->cond);
1469 free(srule->cond);
1470 free(srule);
1471 }
1472
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001473 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
1474 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001475 if (rule->cond) {
1476 prune_acl_cond(rule->cond);
1477 free(rule->cond);
1478 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001479 free(rule);
1480 }
1481
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001482 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
1483 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01001484 if (rdr->cond) {
1485 prune_acl_cond(rdr->cond);
1486 free(rdr->cond);
1487 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001488 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01001489 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
1490 LIST_DEL(&lf->list);
1491 free(lf);
1492 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001493 free(rdr);
1494 }
1495
William Lallemand0f99e342011-10-12 17:50:54 +02001496 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
1497 LIST_DEL(&log->list);
1498 free(log);
1499 }
1500
William Lallemand723b73a2012-02-08 16:37:49 +01001501 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
1502 LIST_DEL(&lf->list);
1503 free(lf);
1504 }
1505
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001506 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
1507 LIST_DEL(&lf->list);
1508 free(lf);
1509 }
1510
Simon Hormanac821422011-07-15 13:14:09 +09001511 deinit_tcp_rules(&p->tcp_req.inspect_rules);
1512 deinit_tcp_rules(&p->tcp_req.l4_rules);
1513
Simon Horman6fb82592011-07-15 13:14:11 +09001514 deinit_stick_rules(&p->storersp_rules);
1515 deinit_stick_rules(&p->sticking_rules);
1516
Willy Tarreaubaaee002006-06-26 02:48:02 +02001517 h = p->req_cap;
1518 while (h) {
1519 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001520 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001521 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001522 free(h);
1523 h = h_next;
1524 }/* end while(h) */
1525
1526 h = p->rsp_cap;
1527 while (h) {
1528 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001529 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001530 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001531 free(h);
1532 h = h_next;
1533 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001534
Willy Tarreaubaaee002006-06-26 02:48:02 +02001535 s = p->srv;
1536 while (s) {
1537 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001538
Willy Tarreau5b3a2022012-09-28 15:01:02 +02001539 if (s->check.task) {
1540 task_delete(s->check.task);
1541 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001542 }
Simon Hormand60d6912013-11-25 10:46:36 +09001543 if (s->agent.task) {
1544 task_delete(s->agent.task);
1545 task_free(s->agent.task);
1546 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001547
Willy Tarreau2e993902011-10-31 11:53:20 +01001548 if (s->warmup) {
1549 task_delete(s->warmup);
1550 task_free(s->warmup);
1551 }
1552
Willy Tarreaua534fea2008-08-03 12:19:50 +02001553 free(s->id);
1554 free(s->cookie);
Willy Tarreau1ae1b7b2012-09-28 15:28:30 +02001555 free(s->check.bi);
1556 free(s->check.bo);
Simon Hormand60d6912013-11-25 10:46:36 +09001557 free(s->agent.bi);
1558 free(s->agent.bo);
James Brown55f9ff12015-10-21 18:19:05 -07001559 free(s->agent.send_string);
Sárközi, László34c01792014-09-05 10:08:23 +02001560 free((char*)s->conf.file);
Christopher Faulet77fe80c2015-07-29 13:02:40 +02001561#ifdef USE_OPENSSL
1562 if (s->use_ssl || s->check.use_ssl)
1563 ssl_sock_free_srv_ctx(s);
1564#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001565 free(s);
1566 s = s_next;
1567 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001568
Willy Tarreau4348fad2012-09-20 16:48:07 +02001569 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02001570 unbind_listener(l);
1571 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001572 LIST_DEL(&l->by_fe);
1573 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001574 free(l->name);
1575 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001576 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001577 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001578
Willy Tarreau4348fad2012-09-20 16:48:07 +02001579 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001580 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
1581#ifdef USE_OPENSSL
Christopher Faulet31af49d2015-06-09 17:29:50 +02001582 ssl_sock_free_ca(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001583 ssl_sock_free_all_ctx(bind_conf);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001584 free(bind_conf->ca_file);
Christopher Faulet31af49d2015-06-09 17:29:50 +02001585 free(bind_conf->ca_sign_file);
1586 free(bind_conf->ca_sign_pass);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001587 free(bind_conf->ciphers);
Emeric Brun2b58d042012-09-20 17:10:03 +02001588 free(bind_conf->ecdhe);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001589 free(bind_conf->crl_file);
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001590#endif /* USE_OPENSSL */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001591 free(bind_conf->file);
1592 free(bind_conf->arg);
1593 LIST_DEL(&bind_conf->by_fe);
1594 free(bind_conf);
1595 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001596
Christopher Fauletd7c91962015-04-30 11:48:27 +02001597 flt_deinit(p);
1598
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001599 free(p->desc);
1600 free(p->fwdfor_hdr_name);
1601
Willy Tarreauff011f22011-01-06 17:51:27 +01001602 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06001603 free_http_res_rules(&p->http_res_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02001604 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01001605
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001606 pool_destroy2(p->req_cap_pool);
1607 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09001608 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001609
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001610 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001611 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001612 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001613 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02001614
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001615 while (ua) {
1616 uap = ua;
1617 ua = ua->next;
1618
Willy Tarreaua534fea2008-08-03 12:19:50 +02001619 free(uap->uri_prefix);
1620 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001621 free(uap->node);
1622 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001623
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001624 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001625 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001626
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001627 free(uap);
1628 }
1629
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001630 userlist_free(userlist);
1631
David Carlier834cb2e2015-09-25 12:02:25 +01001632 cfg_unregister_sections();
1633
1634 free_trash_buffers();
1635 chunk_destroy(&trash);
1636
Willy Tarreaudd815982007-10-16 12:25:14 +02001637 protocol_unbind_all();
1638
David Carlier4a026412015-06-01 13:57:22 +02001639#if defined(USE_DEVICEATLAS)
1640 deinit_deviceatlas();
1641#endif
1642
Thomas Holmes5ed33ee2015-05-14 17:14:30 +01001643#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +02001644 deinit_51degrees();
Thomas Holmes4d441a72015-05-29 12:54:25 +01001645#endif
Thomas Holmes5ed33ee2015-05-14 17:14:30 +01001646
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001647 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02001648 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001649 free(global.chroot); global.chroot = NULL;
1650 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001651 free(global.node); global.node = NULL;
1652 free(global.desc); global.desc = NULL;
Godbach4cc1b0d2013-06-26 16:49:51 +08001653 free(fdinfo); fdinfo = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001654 free(fdtab); fdtab = NULL;
1655 free(oldpids); oldpids = NULL;
David Carlier834cb2e2015-09-25 12:02:25 +01001656 free(static_table_key); static_table_key = NULL;
1657 free(get_http_auth_buff); get_http_auth_buff = NULL;
1658 free(swap_buffer); swap_buffer = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001659 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001660
William Lallemand0f99e342011-10-12 17:50:54 +02001661 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1662 LIST_DEL(&log->list);
1663 free(log);
1664 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001665 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001666 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01001667 LIST_DEL(&wl->list);
1668 free(wl);
1669 }
1670
Willy Tarreau87b09662015-04-03 00:22:06 +02001671 pool_destroy2(pool2_stream);
Willy Tarreaufeb76402015-04-03 14:10:06 +02001672 pool_destroy2(pool2_session);
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001673 pool_destroy2(pool2_connection);
Willy Tarreau9b28e032012-10-12 23:49:43 +02001674 pool_destroy2(pool2_buffer);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001675 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001676 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001677 pool_destroy2(pool2_capture);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001678 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001679 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001680 pool_destroy2(pool2_hdr_idx);
Willy Tarreau63986c72015-04-03 22:55:33 +02001681 pool_destroy2(pool2_http_txn);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001682 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001683} /* end deinit() */
1684
Willy Tarreaubb545b42010-08-25 12:58:59 +02001685/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1686 * pids the signal was correctly delivered to.
1687 */
1688static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001689{
1690 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001691 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001692 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001693 if (kill(oldpids[p], sig) == 0)
1694 ret++;
1695 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001696}
1697
Willy Tarreau918ff602011-07-25 16:33:49 +02001698/* Runs the polling loop */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001699void run_poll_loop()
1700{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001701 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001702
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001703 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001704 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001705 /* Process a few tasks */
1706 process_runnable_tasks();
1707
Willy Tarreau29857942009-05-10 09:01:21 +02001708 /* check if we caught some signals and process them */
1709 signal_process_queue();
1710
Willy Tarreau58b458d2008-06-29 22:40:23 +02001711 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001712 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001713
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001714 /* stop when there's nothing left to do */
1715 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001716 break;
1717
Willy Tarreau10146c92015-04-13 20:44:19 +02001718 /* expire immediately if events are pending */
Willy Tarreau64bca9d2015-09-25 17:39:23 +02001719 if (fd_cache_num || run_queue || signal_queue_len || !LIST_ISEMPTY(&applet_active_queue))
Willy Tarreau10146c92015-04-13 20:44:19 +02001720 next = now_ms;
1721
Willy Tarreau58b458d2008-06-29 22:40:23 +02001722 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001723 cur_poller.poll(&cur_poller, next);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01001724 fd_process_cached_events();
Willy Tarreau3c595ac2015-04-19 09:59:31 +02001725 applet_run_active();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001726 }
1727}
1728
Willy Tarreaue9b26022011-08-01 20:57:55 +02001729/* This is the global management task for listeners. It enables listeners waiting
1730 * for global resources when there are enough free resource, or at least once in
1731 * a while. It is designed to be called as a task.
1732 */
1733static struct task *manage_global_listener_queue(struct task *t)
1734{
1735 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001736 /* queue is empty, nothing to do */
1737 if (LIST_ISEMPTY(&global_listener_queue))
1738 goto out;
1739
1740 /* If there are still too many concurrent connections, let's wait for
1741 * some of them to go away. We don't need to re-arm the timer because
1742 * each of them will scan the queue anyway.
1743 */
1744 if (unlikely(actconn >= global.maxconn))
1745 goto out;
1746
1747 /* We should periodically try to enable listeners waiting for a global
1748 * resource here, because it is possible, though very unlikely, that
1749 * they have been blocked by a temporary lack of global resource such
1750 * as a file descriptor or memory and that the temporary condition has
1751 * disappeared.
1752 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001753 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001754
1755 out:
1756 t->expire = next;
1757 task_queue(t);
1758 return t;
1759}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001760
Willy Tarreaubaaee002006-06-26 02:48:02 +02001761int main(int argc, char **argv)
1762{
1763 int err, retry;
1764 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001765 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02001766 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001767
Emeric Bruncf20bf12010-10-22 16:06:11 +02001768 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001769 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1770 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1771 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001772
Willy Tarreaue437c442010-03-17 18:02:46 +01001773 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1774 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1775 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001776 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001777 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001778
Willy Tarreaudc23a922011-02-16 11:10:36 +01001779 /* ulimits */
1780 if (!global.rlimit_nofile)
1781 global.rlimit_nofile = global.maxsock;
1782
1783 if (global.rlimit_nofile) {
1784 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1785 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02001786 /* try to set it to the max possible at least */
1787 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02001788 limit.rlim_cur = limit.rlim_max;
1789 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
1790 getrlimit(RLIMIT_NOFILE, &limit);
1791
Willy Tarreauef635472016-06-21 11:48:18 +02001792 Warning("[%s.main()] Cannot raise FD limit to %d, limit is %d.\n", argv[0], global.rlimit_nofile, (int)limit.rlim_cur);
1793 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01001794 }
1795 }
1796
1797 if (global.rlimit_memmax) {
1798 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01001799 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01001800#ifdef RLIMIT_AS
1801 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1802 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1803 argv[0], global.rlimit_memmax);
1804 }
1805#else
1806 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1807 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1808 argv[0], global.rlimit_memmax);
1809 }
1810#endif
1811 }
1812
Willy Tarreaubaaee002006-06-26 02:48:02 +02001813 /* We will loop at most 100 times with 10 ms delay each time.
1814 * That's at most 1 second. We only send a signal to old pids
1815 * if we cannot grab at least one port.
1816 */
1817 retry = MAX_START_RETRIES;
1818 err = ERR_NONE;
1819 while (retry >= 0) {
1820 struct timeval w;
1821 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001822 /* exit the loop on no error or fatal error */
1823 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001824 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001825 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001826 break;
1827
1828 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1829 * listening sockets. So on those platforms, it would be wiser to
1830 * simply send SIGUSR1, which will not be undoable.
1831 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001832 if (tell_old_pids(SIGTTOU) == 0) {
1833 /* no need to wait if we can't contact old pids */
1834 retry = 0;
1835 continue;
1836 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001837 /* give some time to old processes to stop listening */
1838 w.tv_sec = 0;
1839 w.tv_usec = 10*1000;
1840 select(0, NULL, NULL, NULL, &w);
1841 retry--;
1842 }
1843
1844 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001845 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001846 if (retry != MAX_START_RETRIES && nb_oldpids) {
1847 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001848 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001849 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001850 exit(1);
1851 }
1852
1853 if (listeners == 0) {
Willy Tarreauf2ee0162015-08-09 11:01:51 +02001854 Alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001855 /* Note: we don't have to send anything to the old pids because we
1856 * never stopped them. */
1857 exit(1);
1858 }
1859
Emeric Bruncf20bf12010-10-22 16:06:11 +02001860 err = protocol_bind_all(errmsg, sizeof(errmsg));
1861 if ((err & ~ERR_WARN) != ERR_NONE) {
1862 if ((err & ERR_ALERT) || (err & ERR_WARN))
1863 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1864
Willy Tarreaudd815982007-10-16 12:25:14 +02001865 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1866 protocol_unbind_all(); /* cleanup everything we can */
1867 if (nb_oldpids)
1868 tell_old_pids(SIGTTIN);
1869 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001870 } else if (err & ERR_WARN) {
1871 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001872 }
1873
Willy Tarreaubaaee002006-06-26 02:48:02 +02001874 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001875 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1876 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001877
Willy Tarreaubaaee002006-06-26 02:48:02 +02001878 /* MODE_QUIET can inhibit alerts and warnings below this line */
1879
1880 global.mode &= ~MODE_STARTING;
1881 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1882 /* detach from the tty */
1883 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001884 }
1885
1886 /* open log & pid files before the chroot */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001887 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001888 unlink(global.pidfile);
1889 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1890 if (pidfd < 0) {
1891 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1892 if (nb_oldpids)
1893 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001894 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001895 exit(1);
1896 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001897 }
1898
Willy Tarreaub38651a2007-03-24 17:24:39 +01001899 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1900 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001901 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001902 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001903 exit(1);
1904 }
1905
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001906 /* If the user is not root, we'll still let him try the configuration
1907 * but we inform him that unexpected behaviour may occur.
1908 */
1909 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1910 Warning("[%s.main()] Some options which require full privileges"
1911 " might not work well.\n"
1912 "", argv[0]);
1913
Willy Tarreauf223cc02007-10-15 18:57:08 +02001914 /* chroot if needed */
1915 if (global.chroot != NULL) {
Willy Tarreau21337822012-04-29 14:11:38 +02001916 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Willy Tarreauf223cc02007-10-15 18:57:08 +02001917 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1918 if (nb_oldpids)
1919 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001920 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001921 exit(1);
1922 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02001923 }
1924
Willy Tarreaubaaee002006-06-26 02:48:02 +02001925 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001926 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001927
1928 /* Note that any error at this stage will be fatal because we will not
1929 * be able to restart the old pids.
1930 */
1931
1932 /* setgid / setuid */
Michael Schererab012dd2013-01-12 18:35:19 +01001933 if (global.gid) {
1934 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
1935 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
1936 " without 'uid'/'user' is generally useless.\n", argv[0]);
1937
1938 if (setgid(global.gid) == -1) {
1939 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
1940 protocol_unbind_all();
1941 exit(1);
1942 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001943 }
1944
1945 if (global.uid && setuid(global.uid) == -1) {
1946 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001947 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001948 exit(1);
1949 }
1950
1951 /* check ulimits */
1952 limit.rlim_cur = limit.rlim_max = 0;
1953 getrlimit(RLIMIT_NOFILE, &limit);
1954 if (limit.rlim_cur < global.maxsock) {
1955 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 +02001956 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001957 }
1958
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001959 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001960 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001961 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001962 int ret = 0;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001963 int *children = calloc(global.nbproc, sizeof(int));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001964 int proc;
Willy Tarreaub9571092016-10-25 17:20:24 +02001965 char *wrapper_fd;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001966
1967 /* the father launches the required number of processes */
1968 for (proc = 0; proc < global.nbproc; proc++) {
1969 ret = fork();
1970 if (ret < 0) {
1971 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001972 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001973 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001974 }
1975 else if (ret == 0) /* child breaks here */
1976 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001977 children[proc] = ret;
Willy Tarreau269ab312012-09-05 08:02:48 +02001978 if (pidfd >= 0) {
1979 char pidstr[100];
1980 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01001981 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001982 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001983 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001984 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001985
1986#ifdef USE_CPU_AFFINITY
1987 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02001988 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001989 global.cpu_map[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02001990#ifdef __FreeBSD__
1991 cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1992#else
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001993 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1994#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02001995#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001996 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02001997 if (pidfd >= 0) {
1998 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
1999 close(pidfd);
2000 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02002001
Willy Tarreaub9571092016-10-25 17:20:24 +02002002 /* each child must notify the wrapper that it's ready by closing the requested fd */
2003 wrapper_fd = getenv("HAPROXY_WRAPPER_FD");
2004 if (wrapper_fd) {
2005 int pipe_fd = atoi(wrapper_fd);
2006
2007 if (pipe_fd >= 0)
2008 close(pipe_fd);
2009 }
2010
Willy Tarreaud137dd32010-08-25 12:49:05 +02002011 /* We won't ever use this anymore */
2012 free(oldpids); oldpids = NULL;
2013 free(global.chroot); global.chroot = NULL;
2014 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002015
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002016 if (proc == global.nbproc) {
2017 if (global.mode & MODE_SYSTEMD) {
William Lallemand6ad6bde2016-01-14 18:10:30 +01002018 int i;
2019
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002020 protocol_unbind_all();
William Lallemand6ad6bde2016-01-14 18:10:30 +01002021 for (i = 1; i < argc; i++) {
2022 memset(argv[i], '\0', strlen(argv[i]));
2023 }
2024 /* it's OK because "-Ds -f x" is the shortest form going here */
2025 memcpy(argv[0] + strlen(argv[0]), "-master", 8);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002026 for (proc = 0; proc < global.nbproc; proc++)
2027 while (waitpid(children[proc], NULL, 0) == -1 && errno == EINTR);
2028 }
2029 exit(0); /* parent must leave */
2030 }
2031
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002032 /* we might have to unbind some proxies from some processes */
2033 px = proxy;
2034 while (px != NULL) {
2035 if (px->bind_proc && px->state != PR_STSTOPPED) {
Willy Tarreaua9db57e2013-01-18 11:29:29 +01002036 if (!(px->bind_proc & (1UL << proc)))
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002037 stop_proxy(px);
2038 }
2039 px = px->next;
2040 }
2041
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002042 /* we might have to unbind some peers sections from some processes */
2043 for (curpeers = peers; curpeers; curpeers = curpeers->next) {
2044 if (!curpeers->peers_fe)
2045 continue;
2046
2047 if (curpeers->peers_fe->bind_proc & (1UL << proc))
2048 continue;
2049
2050 stop_proxy(curpeers->peers_fe);
2051 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02002052 signal_unregister_handler(curpeers->sighandler);
2053 task_delete(curpeers->sync_task);
2054 task_free(curpeers->sync_task);
2055 curpeers->sync_task = NULL;
2056 task_free(curpeers->peers_fe->task);
2057 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002058 curpeers->peers_fe = NULL;
2059 }
2060
Dirkjan Bussink07fcaaa2014-04-28 22:57:16 +00002061 free(children);
2062 children = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002063 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
2064 * that we can detach from the TTY. We MUST NOT do it in other cases since
2065 * it would have already be done, and 0-2 would have been affected to listening
2066 * sockets
2067 */
Willy Tarreau106cb762008-11-16 07:40:34 +01002068 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002069 /* detach from the tty */
2070 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01002071 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002072 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2073 }
2074 pid = getpid(); /* update child's pid */
2075 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02002076 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002077 }
2078
Willy Tarreaudd815982007-10-16 12:25:14 +02002079 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002080 /*
2081 * That's it : the central polling loop. Run until we stop.
2082 */
2083 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002084
Willy Tarreaubaaee002006-06-26 02:48:02 +02002085 /* Do some cleanup */
2086 deinit();
2087
2088 exit(0);
2089}
2090
2091
2092/*
2093 * Local variables:
2094 * c-indent-level: 8
2095 * c-basic-offset: 8
2096 * End:
2097 */