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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>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100112#include <proto/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200113
Emeric Brunfc0421f2012-09-07 17:30:07 +0200114#ifdef USE_OPENSSL
115#include <proto/ssl_sock.h>
116#endif
117
Willy Tarreaue5d31692016-11-08 18:47:25 +0100118#ifdef USE_WURFL
119#include <proto/wurfl.h>
120#endif
121
David Carlier4a026412015-06-01 13:57:22 +0200122#ifdef USE_DEVICEATLAS
123#include <import/da.h>
124#endif
125
Thomas Holmes6abded42015-05-12 16:23:58 +0100126#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +0200127#include <import/51d.h>
Thomas Holmes6abded42015-05-12 16:23:58 +0100128#endif
129
Willy Tarreaubaaee002006-06-26 02:48:02 +0200130/*********************************************************************/
131
Cyril Bonté6162c432012-11-10 19:27:47 +0100132extern const struct comp_algo comp_algos[];
133
Willy Tarreaubaaee002006-06-26 02:48:02 +0200134/*********************************************************************/
135
Willy Tarreau477ecd82010-01-03 21:12:30 +0100136/* list of config files */
137static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200138int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100139int relative_pid = 1; /* process id starting at 1 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200140
141/* global options */
142struct global global = {
Willy Tarreau247a13a2012-11-15 17:38:15 +0100143 .nbproc = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200144 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200145 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
Willy Tarreaued9dddd2015-11-26 16:34:56 +0100146#if defined(USE_ZLIB) && defined(DEFAULT_MAXZLIBMEM)
Willy Tarreau5a940372012-12-03 12:10:45 +0100147 .maxzlibmem = DEFAULT_MAXZLIBMEM * 1024U * 1024U,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100148#else
William Lallemand9d5f5482012-11-07 16:12:57 +0100149 .maxzlibmem = 0,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100150#endif
William Lallemandd85f9172012-11-09 17:05:39 +0100151 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100152 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200153 .unix_bind = {
154 .ux = {
155 .uid = -1,
156 .gid = -1,
157 .mode = 0,
158 }
159 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200160 .tune = {
161 .bufsize = BUFSIZE,
Willy Tarreau27097842015-09-28 13:53:23 +0200162 .maxrewrite = -1,
Willy Tarreau43961d52010-10-04 20:39:20 +0200163 .chksize = BUFSIZE,
Willy Tarreaua24adf02014-11-27 01:11:56 +0100164 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200165 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200166#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100167 .sslcachesize = SSLCACHESIZE,
Remi Gacognef46cd6e2014-06-12 14:58:40 +0200168 .ssl_default_dh_param = SSL_DEFAULT_DH_PARAM,
Willy Tarreau03effc12014-02-12 14:55:41 +0100169#ifdef DEFAULT_SSL_MAX_RECORD
170 .ssl_max_record = DEFAULT_SSL_MAX_RECORD,
171#endif
Christopher Faulet31af49d2015-06-09 17:29:50 +0200172 .ssl_ctx_cache = DEFAULT_SSL_CTX_CACHE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200173#endif
William Lallemanda509e4c2012-11-07 16:54:34 +0100174#ifdef USE_ZLIB
175 .zlibmemlevel = 8,
176 .zlibwindowsize = MAX_WBITS,
177#endif
William Lallemandf3747832012-11-09 12:33:10 +0100178 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100179#ifdef DEFAULT_IDLE_TIMER
180 .idle_timer = DEFAULT_IDLE_TIMER,
181#else
182 .idle_timer = 1000, /* 1 second */
183#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200184 },
Emeric Brun76d88952012-10-05 15:47:31 +0200185#ifdef USE_OPENSSL
186#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200187 .maxsslconn = DEFAULT_MAXSSLCONN,
188#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200189#endif
David Carlier4a026412015-06-01 13:57:22 +0200190#ifdef USE_DEVICEATLAS
191 .deviceatlas = {
David Carlierdf3785f2015-12-02 11:22:53 +0000192 .loglevel = 0,
David Carlier4a026412015-06-01 13:57:22 +0200193 .jsonpath = 0,
David Carlier5801a822015-09-25 14:13:44 +0100194 .cookiename = 0,
195 .cookienamelen = 0,
196 .useragentid = 0,
197 .daset = 0,
David Carlier4a026412015-06-01 13:57:22 +0200198 .separator = '|',
199 },
200#endif
Dragan Dosenacd6b1f2015-06-11 21:36:33 +0200201#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +0200202 ._51degrees = {
203 .property_separator = ',',
204 .property_names = LIST_HEAD_INIT(global._51degrees.property_names),
205 .data_file_path = NULL,
206#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
207 .data_set = { },
208#endif
Dragan Dosen9373fc52015-08-07 16:41:23 +0200209 .cache_size = 0,
Dragan Dosen93b38d92015-06-29 16:43:25 +0200210 },
Dragan Dosenacd6b1f2015-06-11 21:36:33 +0200211#endif
scientiamobiled0027ed2016-11-04 10:55:08 +0100212#ifdef USE_WURFL
213 .wurfl = {
214 .data_file = NULL,
215 .cache_size = NULL,
216 .engine_mode = -1,
217 .useragent_priority = -1,
218 .information_list_separator = ',',
219 .information_list = LIST_HEAD_INIT(global.wurfl.information_list),
220 .patch_file_list = LIST_HEAD_INIT(global.wurfl.patch_file_list),
221 .handle = NULL,
222 },
223#endif
224
Willy Tarreaubaaee002006-06-26 02:48:02 +0200225 /* others NULL OK */
226};
227
228/*********************************************************************/
229
230int stopping; /* non zero means stopping in progress */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200231int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200232
233/* Here we store informations about the pids of the processes we may pause
234 * or kill. We will send them a signal every 10 ms until we can bind to all
235 * our ports. With 200 retries, that's about 2 seconds.
236 */
237#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200238static int *oldpids = NULL;
239static int oldpids_sig; /* use USR1 or TERM */
240
241/* this is used to drain data, and as a temporary buffer for sprintf()... */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100242struct chunk trash = { };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200243
Willy Tarreau8096de92010-02-26 11:12:27 +0100244/* this buffer is always the same size as standard buffers and is used for
245 * swapping data inside a buffer.
246 */
247char *swap_buffer = NULL;
248
Willy Tarreaubb545b42010-08-25 12:58:59 +0200249int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200250const int zero = 0;
251const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200252const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200253
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100254char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200255char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200256
Willy Tarreau89efaed2013-12-13 15:14:55 +0100257/* used from everywhere just to drain results we don't want to read and which
258 * recent versions of gcc increasingly and annoyingly complain about.
259 */
260int shut_your_big_mouth_gcc_int = 0;
261
Willy Tarreau08ceb102011-07-24 22:58:00 +0200262/* list of the temporarily limited listeners because of lack of resource */
263struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200264struct task *global_listener_queue_task;
265static struct task *manage_global_listener_queue(struct task *t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200266
Willy Tarreauff055502014-04-28 22:27:06 +0200267/* bitfield of a few warnings to emit just once (WARN_*) */
268unsigned int warned = 0;
269
Willy Tarreaubaaee002006-06-26 02:48:02 +0200270/*********************************************************************/
271/* general purpose functions ***************************************/
272/*********************************************************************/
273
274void display_version()
275{
276 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreau8234f6d2016-03-14 00:10:05 +0100277 printf("Copyright 2000-2016 Willy Tarreau <willy@haproxy.org>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200278}
279
Willy Tarreau7b066db2007-12-02 11:28:59 +0100280void display_build_opts()
281{
282 printf("Build options :"
283#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100284 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100285#endif
286#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100287 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100288#endif
289#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100290 "\n CC = " BUILD_CC
291#endif
292#ifdef BUILD_CFLAGS
293 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100294#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100295#ifdef BUILD_OPTIONS
296 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100297#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200298 "\n\nDefault settings :"
299 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
300 "\n\n",
301 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200302
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100303 printf("Encrypted password support via crypt(3): "
304#ifdef CONFIG_HAP_CRYPT
305 "yes"
306#else
307 "no"
308#endif
309 "\n");
310
Cyril Bonté6162c432012-11-10 19:27:47 +0100311#ifdef USE_ZLIB
312 printf("Built with zlib version : " ZLIB_VERSION "\n");
Lukas Tribus255cc512016-09-12 21:42:14 +0000313 printf("Running on zlib version : %s\n", zlibVersion());
Willy Tarreau86ac1762015-10-13 16:46:28 +0200314#elif defined(USE_SLZ)
315 printf("Built with libslz for stateless compression.\n");
Cyril Bonté6162c432012-11-10 19:27:47 +0100316#else /* USE_ZLIB */
Willy Tarreau86ac1762015-10-13 16:46:28 +0200317 printf("Built without compression support (neither USE_ZLIB nor USE_SLZ are set)\n");
Cyril Bonté6162c432012-11-10 19:27:47 +0100318#endif
319 printf("Compression algorithms supported :");
320 {
321 int i;
322
Willy Tarreau615105e2015-03-28 16:40:46 +0100323 for (i = 0; comp_algos[i].cfg_name; i++) {
324 printf("%s %s(\"%s\")", (i == 0 ? "" : ","), comp_algos[i].cfg_name, comp_algos[i].ua_name);
Cyril Bonté6162c432012-11-10 19:27:47 +0100325 }
326 if (i == 0) {
327 printf("none");
328 }
329 }
330 printf("\n");
331
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200332#ifdef USE_OPENSSL
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200333 printf("Built with OpenSSL version : "
334#ifdef OPENSSL_IS_BORINGSSL
335 "BoringSSL\n");
336#else /* OPENSSL_IS_BORINGSSL */
337 OPENSSL_VERSION_TEXT "\n");
Willy Tarreau0cff0db2013-04-26 18:16:13 +0200338 printf("Running on OpenSSL version : %s%s\n",
339 SSLeay_version(SSLEAY_VERSION),
340 ((OPENSSL_VERSION_NUMBER ^ SSLeay()) >> 8) ? " (VERSIONS DIFFER!)" : "");
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200341#endif
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200342 printf("OpenSSL library supports TLS extensions : "
343#if OPENSSL_VERSION_NUMBER < 0x00907000L
344 "no (library version too old)"
345#elif defined(OPENSSL_NO_TLSEXT)
346 "no (disabled via OPENSSL_NO_TLSEXT)"
347#else
348 "yes"
349#endif
350 "\n");
351 printf("OpenSSL library supports SNI : "
352#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
353 "yes"
354#else
355#ifdef OPENSSL_NO_TLSEXT
356 "no (because of OPENSSL_NO_TLSEXT)"
357#else
358 "no (version might be too old, 0.9.8f min needed)"
359#endif
360#endif
361 "\n");
362 printf("OpenSSL library supports prefer-server-ciphers : "
363#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
364 "yes"
365#else
366 "no (0.9.7 or later needed)"
367#endif
368 "\n");
369#else /* USE_OPENSSL */
370 printf("Built without OpenSSL support (USE_OPENSSL not set)\n");
371#endif
Lukas Tribusea68d362013-04-04 12:24:16 +0200372
373#ifdef USE_PCRE
Lukas Tribusdcbc5c52016-09-12 21:42:07 +0000374 printf("Built with PCRE version : %s\n", (HAP_XSTRING(Z PCRE_PRERELEASE)[1] == 0)?
375 HAP_XSTRING(PCRE_MAJOR.PCRE_MINOR PCRE_DATE) :
376 HAP_XSTRING(PCRE_MAJOR.PCRE_MINOR) HAP_XSTRING(PCRE_PRERELEASE PCRE_DATE));
Lukas Tribusd64788d2016-09-12 21:42:00 +0000377 printf("Running on PCRE version : %s", pcre_version());
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200378 printf("\nPCRE library supports JIT : ");
379#ifdef USE_PCRE_JIT
380 {
381 int r;
382 pcre_config(PCRE_CONFIG_JIT, &r);
383 if (r)
384 printf("yes");
385 else
386 printf("no (libpcre build without JIT?)");
387 }
Lukas Tribusea68d362013-04-04 12:24:16 +0200388#else
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200389 printf("no (USE_PCRE_JIT not set)");
Lukas Tribusea68d362013-04-04 12:24:16 +0200390#endif
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200391 printf("\n");
Lukas Tribusea68d362013-04-04 12:24:16 +0200392#else
393 printf("Built without PCRE support (using libc's regex instead)\n");
394#endif
395
Cyril Bonté47eb2192015-03-02 00:08:39 +0100396#ifdef USE_LUA
397 printf("Built with Lua version : %s\n", LUA_RELEASE);
398#else
399 printf("Built without Lua support\n");
400#endif
401
Willy Tarreau29fbe512015-08-20 19:35:14 +0200402#if defined(CONFIG_HAP_TRANSPARENT)
Pieter Baauwd551fb52013-05-08 22:49:23 +0200403 printf("Built with transparent proxy support using:"
Pieter Baauwd551fb52013-05-08 22:49:23 +0200404#if defined(IP_TRANSPARENT)
405 " IP_TRANSPARENT"
406#endif
407#if defined(IPV6_TRANSPARENT)
408 " IPV6_TRANSPARENT"
409#endif
410#if defined(IP_FREEBIND)
411 " IP_FREEBIND"
412#endif
Pieter Baauwff30b662013-05-08 23:22:39 +0200413#if defined(IP_BINDANY)
414 " IP_BINDANY"
415#endif
416#if defined(IPV6_BINDANY)
417 " IPV6_BINDANY"
418#endif
Pieter Baauw1eb75922013-05-08 23:30:23 +0200419#if defined(SO_BINDANY)
420 " SO_BINDANY"
421#endif
Pieter Baauwd551fb52013-05-08 22:49:23 +0200422 "\n");
423#endif
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100424
425#if defined(CONFIG_HAP_NS)
426 printf("Built with network namespace support\n");
427#endif
Thomas Holmes6abded42015-05-12 16:23:58 +0100428
David Carlierdf3785f2015-12-02 11:22:53 +0000429#ifdef USE_DEVICEATLAS
430 printf("Built with DeviceAtlas support\n");
431#endif
Thomas Holmes6abded42015-05-12 16:23:58 +0100432#ifdef USE_51DEGREES
433 printf("Built with 51Degrees support\n");
434#endif
scientiamobiled0027ed2016-11-04 10:55:08 +0100435#ifdef USE_WURFL
436 printf("Built with WURFL support\n");
437#endif
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100438 putchar('\n');
439
Willy Tarreaube5b6852009-10-03 18:57:08 +0200440 list_pollers(stdout);
441 putchar('\n');
Christopher Fauletb3f4e142016-03-07 12:46:38 +0100442 list_filters(stdout);
443 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100444}
445
Willy Tarreaubaaee002006-06-26 02:48:02 +0200446/*
447 * This function prints the command line usage and exits
448 */
449void usage(char *name)
450{
451 display_version();
452 fprintf(stderr,
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200453 "Usage : %s [-f <cfgfile|cfgdir>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200454 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200455 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100456 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200457 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200458 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200459 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200460 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200461 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200462 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200463 " -n sets the maximum total # of connections (%d)\n"
464 " -m limits the usable amount of memory (in MB)\n"
465 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200466 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200467 " -p writes pids of all children to this file\n"
468#if defined(ENABLE_EPOLL)
469 " -de disables epoll() usage even when available\n"
470#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200471#if defined(ENABLE_KQUEUE)
472 " -dk disables kqueue() usage even when available\n"
473#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200474#if defined(ENABLE_POLL)
475 " -dp disables poll() usage even when available\n"
476#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200477#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100478 " -dS disables splice usage (broken on old kernels)\n"
479#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200480#if defined(USE_GETADDRINFO)
481 " -dG disables getaddrinfo() usage\n"
482#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000483#if defined(SO_REUSEPORT)
484 " -dR disables SO_REUSEPORT usage\n"
485#endif
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100486 " -dr ignores server address resolution failures\n"
Emeric Brun850efd52014-01-29 12:24:34 +0100487 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200488 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200489 "\n",
490 name, DEFAULT_MAXCONN, cfg_maxpconn);
491 exit(1);
492}
493
494
495
496/*********************************************************************/
497/* more specific functions ***************************************/
498/*********************************************************************/
499
500/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200501 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
502 * a signal zero to all subscribers. This means that it's as easy as
503 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200504 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200505void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200506{
507 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200508 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200509 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200510}
511
512/*
513 * upon SIGTTOU, we pause everything
514 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200515void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200516{
517 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200518 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200519}
520
521/*
522 * upon SIGTTIN, let's have a soft stop.
523 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200524void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200525{
Willy Tarreaube58c382011-07-24 18:28:10 +0200526 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200527}
528
529/*
530 * this function dumps every server's state when the process receives SIGHUP.
531 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200532void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200533{
534 struct proxy *p = proxy;
535
536 Warning("SIGHUP received, dumping servers states.\n");
537 while (p) {
538 struct server *s = p->srv;
539
540 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
541 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100542 chunk_printf(&trash,
543 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
544 p->id, s->id,
Willy Tarreau892337c2014-05-13 23:41:20 +0200545 (s->state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100546 s->cur_sess, s->nbpend, s->counters.cum_sess);
547 Warning("%s\n", trash.str);
548 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200549 s = s->next;
550 }
551
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200552 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
553 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100554 chunk_printf(&trash,
555 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
556 p->id,
557 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 +0200558 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100559 chunk_printf(&trash,
560 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
561 p->id,
562 (p->srv_bck) ? "is running on backup servers" : "has no server available",
563 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 +0200564 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100565 chunk_printf(&trash,
566 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
567 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
568 p->id, p->srv_act, p->srv_bck,
569 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 +0200570 }
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100571 Warning("%s\n", trash.str);
572 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200573
574 p = p->next;
575 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200576}
577
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200578void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200579{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200580 /* dump memory usage then free everything possible */
581 dump_pools();
582 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200583}
584
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200585/* This function check if cfg_cfgfiles containes directories.
586 * If it find one, it add all the files (and only files) it containes
587 * in cfg_cfgfiles in place of the directory (and remove the directory).
588 * It add the files in lexical order.
589 * It add only files with .cfg extension.
590 * It doesn't add files with name starting with '.'
591 */
592void cfgfiles_expand_directories(void)
593{
594 struct wordlist *wl, *wlb;
595 char *err = NULL;
596
597 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
598 struct stat file_stat;
599 struct dirent **dir_entries = NULL;
600 int dir_entries_nb;
601 int dir_entries_it;
602
603 if (stat(wl->s, &file_stat)) {
604 Alert("Cannot open configuration file/directory %s : %s\n",
605 wl->s,
606 strerror(errno));
607 exit(1);
608 }
609
610 if (!S_ISDIR(file_stat.st_mode))
611 continue;
612
613 /* from this point wl->s is a directory */
614
615 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
616 if (dir_entries_nb < 0) {
617 Alert("Cannot open configuration directory %s : %s\n",
618 wl->s,
619 strerror(errno));
620 exit(1);
621 }
622
623 /* for each element in the directory wl->s */
624 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
625 struct dirent *dir_entry = dir_entries[dir_entries_it];
626 char *filename = NULL;
627 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
628
629 /* don't add filename that begin with .
630 * only add filename with .cfg extention
631 */
632 if (dir_entry->d_name[0] == '.' ||
633 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
634 goto next_dir_entry;
635
636 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
637 Alert("Cannot load configuration files %s : out of memory.\n",
638 filename);
639 exit(1);
640 }
641
642 if (stat(filename, &file_stat)) {
643 Alert("Cannot open configuration file %s : %s\n",
644 wl->s,
645 strerror(errno));
646 exit(1);
647 }
648
649 /* don't add anything else than regular file in cfg_cfgfiles
650 * this way we avoid loops
651 */
652 if (!S_ISREG(file_stat.st_mode))
653 goto next_dir_entry;
654
655 if (!list_append_word(&wl->list, filename, &err)) {
656 Alert("Cannot load configuration files %s : %s\n",
657 filename,
658 err);
659 exit(1);
660 }
661
662next_dir_entry:
663 free(filename);
664 free(dir_entry);
665 }
666
667 free(dir_entries);
668
669 /* remove the current directory (wl) from cfg_cfgfiles */
670 free(wl->s);
671 LIST_DEL(&wl->list);
672 free(wl);
673 }
674
675 free(err);
676}
677
Willy Tarreaubaaee002006-06-26 02:48:02 +0200678/*
679 * This function initializes all the necessary variables. It only returns
680 * if everything is OK. If something fails, it exits.
681 */
682void init(int argc, char **argv)
683{
Willy Tarreaubaaee002006-06-26 02:48:02 +0200684 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200685 char *tmp;
686 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200687 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +0200688 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100689 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000690 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200691 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200692 struct proxy *px;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200693
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100694 chunk_init(&trash, malloc(global.tune.bufsize), global.tune.bufsize);
Willy Tarreau2819e992013-12-13 14:41:10 +0100695 alloc_trash_buffers(global.tune.bufsize);
David du Colombier7af46052012-05-16 14:16:48 +0200696
Emeric Brun2b920a12010-09-23 18:30:22 +0200697 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
698 * the string in case of truncation, and at least FreeBSD appears not to do
699 * it.
700 */
701 memset(hostname, 0, sizeof(hostname));
702 gethostname(hostname, sizeof(hostname) - 1);
703 memset(localpeer, 0, sizeof(localpeer));
704 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
705
Willy Tarreaubaaee002006-06-26 02:48:02 +0200706 /*
707 * Initialize the previously static variables.
708 */
709
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100710 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200711
712
713#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +0100714 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200715#endif
716
Benoit GARNIERb413c2a2016-03-27 11:08:03 +0200717 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200718 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200719 start_date = now;
720
Willy Tarreau84310e22014-02-14 11:59:04 +0100721 srandom(now_ms - getpid());
722
Dragan Dosen835b9212016-02-12 13:23:03 +0100723 init_log();
Willy Tarreau29857942009-05-10 09:01:21 +0200724 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100725 if (init_acl() != 0)
726 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200727 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +0200728 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200729 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200730 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +0200731 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200732 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100733 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200734
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100735 /* Initialise lua. */
736 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100737
Christopher Fauletff2613e2016-11-09 11:36:17 +0100738 /* Initialize process vars */
739 vars_init(&global.vars, SCOPE_PROC);
740
Willy Tarreau43b78992009-01-25 15:42:27 +0100741 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200742#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100743 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200744#endif
745#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100746 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200747#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200748#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100749 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200750#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200751#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100752 global.tune.options |= GTUNE_USE_SPLICE;
753#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200754#if defined(USE_GETADDRINFO)
755 global.tune.options |= GTUNE_USE_GAI;
756#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000757#if defined(SO_REUSEPORT)
758 global.tune.options |= GTUNE_USE_REUSEPORT;
759#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200760
761 pid = getpid();
762 progname = *argv;
763 while ((tmp = strchr(progname, '/')) != NULL)
764 progname = tmp + 1;
765
Kevinm48936af2010-12-22 16:08:21 +0000766 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +0200767 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +0000768
Willy Tarreaubaaee002006-06-26 02:48:02 +0200769 argc--; argv++;
770 while (argc > 0) {
771 char *flag;
772
773 if (**argv == '-') {
774 flag = *argv+1;
775
776 /* 1 arg */
777 if (*flag == 'v') {
778 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100779 if (flag[1] == 'v') /* -vv */
780 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200781 exit(0);
782 }
783#if defined(ENABLE_EPOLL)
784 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100785 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200786#endif
787#if defined(ENABLE_POLL)
788 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100789 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200790#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200791#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200792 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100793 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200794#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200795#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100796 else if (*flag == 'd' && flag[1] == 'S')
797 global.tune.options &= ~GTUNE_USE_SPLICE;
798#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200799#if defined(USE_GETADDRINFO)
800 else if (*flag == 'd' && flag[1] == 'G')
801 global.tune.options &= ~GTUNE_USE_GAI;
802#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000803#if defined(SO_REUSEPORT)
804 else if (*flag == 'd' && flag[1] == 'R')
805 global.tune.options &= ~GTUNE_USE_REUSEPORT;
806#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100807 else if (*flag == 'd' && flag[1] == 'V')
808 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200809 else if (*flag == 'V')
810 arg_mode |= MODE_VERBOSE;
811 else if (*flag == 'd' && flag[1] == 'b')
812 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +0200813 else if (*flag == 'd' && flag[1] == 'M')
814 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100815 else if (*flag == 'd' && flag[1] == 'r')
816 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200817 else if (*flag == 'd')
818 arg_mode |= MODE_DEBUG;
819 else if (*flag == 'c')
820 arg_mode |= MODE_CHECK;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100821 else if (*flag == 'D') {
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200822 arg_mode |= MODE_DAEMON;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100823 if (flag[1] == 's') /* -Ds */
824 arg_mode |= MODE_SYSTEMD;
825 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200826 else if (*flag == 'q')
827 arg_mode |= MODE_QUIET;
828 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
829 /* list of pids to finish ('f') or terminate ('t') */
830
831 if (flag[1] == 'f')
832 oldpids_sig = SIGUSR1; /* finish then exit */
833 else
834 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200835
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200836 while (argc > 1 && argv[1][0] != '-') {
837 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
838 if (!oldpids) {
839 Alert("Cannot allocate old pid : out of memory.\n");
840 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200841 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200842 argc--; argv++;
843 oldpids[nb_oldpids] = atol(*argv);
844 if (oldpids[nb_oldpids] <= 0)
845 usage(progname);
846 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200847 }
848 }
Willy Tarreaua088d312015-10-08 11:58:48 +0200849 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
850 /* now that's a cfgfile list */
851 argv++; argc--;
852 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +0200853 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
854 Alert("Cannot load configuration file/directory %s : %s\n",
855 *argv,
856 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +0200857 exit(1);
858 }
Willy Tarreaua088d312015-10-08 11:58:48 +0200859 argv++; argc--;
860 }
861 break;
862 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200863 else { /* >=2 args */
864 argv++; argc--;
865 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200866 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200867
868 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200869 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200870 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +0100871 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200872 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200873 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200874 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +0200875 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
876 Alert("Cannot load configuration file/directory %s : %s\n",
877 *argv,
878 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200879 exit(1);
880 }
Willy Tarreau5d01a632009-06-22 16:02:30 +0200881 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200882 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200883 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200884 }
885 }
886 }
887 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200888 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200889 argv++; argc--;
890 }
891
892 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100893 (arg_mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_FOREGROUND | MODE_VERBOSE
Willy Tarreaubaaee002006-06-26 02:48:02 +0200894 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
895
Willy Tarreau576132e2011-09-10 19:26:56 +0200896 if (change_dir && chdir(change_dir) < 0) {
897 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
898 exit(1);
899 }
900
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200901 /* handle cfgfiles that are actualy directories */
902 cfgfiles_expand_directories();
903
904 if (LIST_ISEMPTY(&cfg_cfgfiles))
905 usage(progname);
906
Willy Tarreaubaaee002006-06-26 02:48:02 +0200907 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200908
909 init_default_instance();
910
Willy Tarreau477ecd82010-01-03 21:12:30 +0100911 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100912 int ret;
913
Willy Tarreau477ecd82010-01-03 21:12:30 +0100914 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100915 if (ret == -1) {
916 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100917 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100918 exit(1);
919 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100920 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100921 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100922 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200923 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200924 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200925 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200926
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100927 pattern_finalize_config();
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +0200928#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
929 tlskeys_finalize_config();
930#endif
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100931
Willy Tarreaubb925012009-07-23 13:36:36 +0200932 err_code |= check_config_validity();
933 if (err_code & (ERR_ABORT|ERR_FATAL)) {
934 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200935 exit(1);
936 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200937
Willy Tarreau70060452015-12-14 12:46:07 +0100938 /* recompute the amount of per-process memory depending on nbproc and
939 * the shared SSL cache size (allowed to exist in all processes).
940 */
941 if (global.rlimit_memmax_all) {
942#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
943 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
944
945 global.rlimit_memmax =
946 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
947 ssl_cache_bytes) / global.nbproc +
948 ssl_cache_bytes + 1048575LL) / 1048576LL;
949#else
950 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
951#endif
952 }
953
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100954#ifdef CONFIG_HAP_NS
955 err_code |= netns_init();
956 if (err_code & (ERR_ABORT|ERR_FATAL)) {
957 Alert("Failed to initialize namespace support.\n");
958 exit(1);
959 }
960#endif
961
Baptiste Assmann4215d7d2016-11-02 15:33:15 +0100962 /* Apply server states */
963 apply_server_state();
964
965 for (px = proxy; px; px = px->next)
966 srv_compute_all_admin_states(px);
967
Baptiste Assmann83cbaa52016-11-02 15:34:05 +0100968 /* Apply servers' configured address */
969 err_code |= srv_init_addr();
970 if (err_code & (ERR_ABORT|ERR_FATAL)) {
971 Alert("Failed to initialize server(s) addr.\n");
972 exit(1);
973 }
974
Willy Tarreaubaaee002006-06-26 02:48:02 +0200975 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100976 struct peers *pr;
977 struct proxy *px;
978
979 for (pr = peers; pr; pr = pr->next)
980 if (pr->peers_fe)
981 break;
982
983 for (px = proxy; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +0200984 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100985 break;
986
987 if (pr || px) {
988 /* At least one peer or one listener has been found */
989 qfprintf(stdout, "Configuration file is valid\n");
990 exit(0);
991 }
992 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
993 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200994 }
995
Willy Tarreaue9b26022011-08-01 20:57:55 +0200996 global_listener_queue_task = task_new();
997 if (!global_listener_queue_task) {
998 Alert("Out of memory when initializing global task\n");
999 exit(1);
1000 }
1001 /* very simple initialization, users will queue the task if needed */
1002 global_listener_queue_task->context = NULL; /* not even a context! */
1003 global_listener_queue_task->process = manage_global_listener_queue;
1004 global_listener_queue_task->expire = TICK_ETERNITY;
1005
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001006 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02001007 init_buffer();
David Carlier4a026412015-06-01 13:57:22 +02001008#if defined(USE_DEVICEATLAS)
1009 init_deviceatlas();
1010#endif
Dragan Dosen93b38d92015-06-29 16:43:25 +02001011#ifdef USE_51DEGREES
1012 init_51degrees();
1013#endif
scientiamobiled0027ed2016-11-04 10:55:08 +01001014#ifdef USE_WURFL
1015 ha_wurfl_init();
1016#endif
Willy Tarreau8280d642009-09-23 23:37:52 +02001017
Christopher Fauletd7c91962015-04-30 11:48:27 +02001018 for (px = proxy; px; px = px->next) {
1019 err_code |= flt_init(px);
1020 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1021 Alert("Failed to initialize filters for proxy '%s'.\n",
1022 px->id);
1023 exit(1);
1024 }
1025 }
1026
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001027 if (start_checks() < 0)
1028 exit(1);
1029
Willy Tarreaubaaee002006-06-26 02:48:02 +02001030 if (cfg_maxconn > 0)
1031 global.maxconn = cfg_maxconn;
1032
1033 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02001034 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001035 global.pidfile = strdup(cfg_pidfile);
1036 }
1037
Willy Tarreaud0256482015-01-15 21:45:22 +01001038 /* Now we want to compute the maxconn and possibly maxsslconn values.
1039 * It's a bit tricky. If memmax is not set, maxconn defaults to
1040 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
1041 *
1042 * If memmax is set, then it depends on which values are set. If
1043 * maxsslconn is set, we use memmax to determine how many cleartext
1044 * connections may be added, and set maxconn to the sum of the two.
1045 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1046 * the remaining amount of memory between memmax and the cleartext
1047 * connections. If neither are set, then it is considered that all
1048 * connections are SSL-capable, and maxconn is computed based on this,
1049 * then maxsslconn accordingly. We need to know if SSL is used on the
1050 * frontends, backends, or both, because when it's used on both sides,
1051 * we need twice the value for maxsslconn, but we only count the
1052 * handshake once since it is not performed on the two sides at the
1053 * same time (frontend-side is terminated before backend-side begins).
1054 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001055 * ssl_handshake_cost during its initialization. In any case, if
1056 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1057 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001058 */
1059 if (!global.rlimit_memmax) {
1060 if (global.maxconn == 0) {
1061 global.maxconn = DEFAULT_MAXCONN;
1062 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1063 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1064 }
1065 }
1066#ifdef USE_OPENSSL
1067 else if (!global.maxconn && !global.maxsslconn &&
1068 (global.ssl_used_frontend || global.ssl_used_backend)) {
1069 /* memmax is set, compute everything automatically. Here we want
1070 * to ensure that all SSL connections will be served. We take
1071 * care of the number of sides where SSL is used, and consider
1072 * the worst case : SSL used on both sides and doing a handshake
1073 * simultaneously. Note that we can't have more than maxconn
1074 * handshakes at a time by definition, so for the worst case of
1075 * two SSL conns per connection, we count a single handshake.
1076 */
1077 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1078 int64_t mem = global.rlimit_memmax * 1048576ULL;
1079
1080 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1081 mem -= global.maxzlibmem;
1082 mem = mem * MEM_USABLE_RATIO;
1083
1084 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001085 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001086 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1087 global.ssl_handshake_max_cost); // 1 handshake per connection max
1088
1089 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001090#ifdef SYSTEM_MAXCONN
1091 if (global.maxconn > DEFAULT_MAXCONN)
1092 global.maxconn = DEFAULT_MAXCONN;
1093#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001094 global.maxsslconn = sides * global.maxconn;
1095 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1096 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1097 global.maxconn, global.maxsslconn);
1098 }
1099 else if (!global.maxsslconn &&
1100 (global.ssl_used_frontend || global.ssl_used_backend)) {
1101 /* memmax and maxconn are known, compute maxsslconn automatically.
1102 * maxsslconn being forced, we don't know how many of it will be
1103 * on each side if both sides are being used. The worst case is
1104 * when all connections use only one SSL instance because
1105 * handshakes may be on two sides at the same time.
1106 */
1107 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1108 int64_t mem = global.rlimit_memmax * 1048576ULL;
1109 int64_t sslmem;
1110
1111 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1112 mem -= global.maxzlibmem;
1113 mem = mem * MEM_USABLE_RATIO;
1114
Willy Tarreau87b09662015-04-03 00:22:06 +02001115 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001116 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1117 global.maxsslconn = round_2dig(global.maxsslconn);
1118
1119 if (sslmem <= 0 || global.maxsslconn < sides) {
1120 Alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1121 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1122 "without SSL is %d, but %d was found and SSL is in use.\n",
1123 global.rlimit_memmax,
Willy Tarreau87b09662015-04-03 00:22:06 +02001124 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
Willy Tarreaud0256482015-01-15 21:45:22 +01001125 global.maxconn);
1126 exit(1);
1127 }
1128
1129 if (global.maxsslconn > sides * global.maxconn)
1130 global.maxsslconn = sides * global.maxconn;
1131
1132 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1133 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1134 }
1135#endif
1136 else if (!global.maxconn) {
1137 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1138 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1139 int64_t mem = global.rlimit_memmax * 1048576ULL;
1140 int64_t clearmem;
1141
1142 if (global.ssl_used_frontend || global.ssl_used_backend)
1143 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1144
1145 mem -= global.maxzlibmem;
1146 mem = mem * MEM_USABLE_RATIO;
1147
1148 clearmem = mem;
1149 if (sides)
1150 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1151
Willy Tarreau87b09662015-04-03 00:22:06 +02001152 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001153 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001154#ifdef SYSTEM_MAXCONN
1155 if (global.maxconn > DEFAULT_MAXCONN)
1156 global.maxconn = DEFAULT_MAXCONN;
1157#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001158
1159 if (clearmem <= 0 || !global.maxconn) {
1160 Alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
1161 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1162 "is %d, but %d was found.\n",
1163 global.rlimit_memmax,
1164 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
1165 global.maxsslconn);
1166 exit(1);
1167 }
1168
1169 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1170 if (sides && global.maxsslconn > sides * global.maxconn) {
1171 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
1172 "to be limited to %d. Better reduce global.maxsslconn to get more "
1173 "room for extra connections.\n", global.maxsslconn, global.maxconn);
1174 }
1175 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
1176 }
1177 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001178
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001179 if (!global.maxpipes) {
1180 /* maxpipes not specified. Count how many frontends and backends
1181 * may be using splicing, and bound that to maxconn.
1182 */
1183 struct proxy *cur;
1184 int nbfe = 0, nbbe = 0;
1185
1186 for (cur = proxy; cur; cur = cur->next) {
1187 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
1188 if (cur->cap & PR_CAP_FE)
1189 nbfe += cur->maxconn;
1190 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +01001191 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001192 }
1193 }
1194 global.maxpipes = MAX(nbfe, nbbe);
1195 if (global.maxpipes > global.maxconn)
1196 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +01001197 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001198 }
1199
1200
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001201 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001202 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01001203 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001204
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001205 if (global.stats_fe)
1206 global.maxsock += global.stats_fe->maxconn;
1207
1208 if (peers) {
1209 /* peers also need to bypass global maxconn */
1210 struct peers *p = peers;
1211
1212 for (p = peers; p; p = p->next)
1213 if (p->peers_fe)
1214 global.maxsock += p->peers_fe->maxconn;
1215 }
1216
Willy Tarreau1db37712007-06-03 17:16:49 +02001217 if (global.tune.maxpollevents <= 0)
1218 global.tune.maxpollevents = MAX_POLL_EVENTS;
1219
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01001220 if (global.tune.recv_enough == 0)
1221 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
1222
Willy Tarreau27097842015-09-28 13:53:23 +02001223 if (global.tune.maxrewrite < 0)
1224 global.tune.maxrewrite = MAXREWRITE;
1225
Willy Tarreau27a674e2009-08-17 07:23:33 +02001226 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
1227 global.tune.maxrewrite = global.tune.bufsize / 2;
1228
Willy Tarreaubaaee002006-06-26 02:48:02 +02001229 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
1230 /* command line debug mode inhibits configuration mode */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001231 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001232 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
1233 }
1234
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001235 if (arg_mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001236 /* command line daemon mode inhibits foreground and debug modes mode */
1237 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001238 global.mode |= (arg_mode & (MODE_DAEMON | MODE_SYSTEMD));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001239 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001240
1241 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001242
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001243 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET))) {
1244 Warning("<debug> mode incompatible with <quiet>, <daemon> and <systemd>. Keeping <debug> only.\n");
1245 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001246 }
1247
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001248 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_SYSTEMD))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001249 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
1250 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
1251 global.nbproc = 1;
1252 }
1253
1254 if (global.nbproc < 1)
1255 global.nbproc = 1;
1256
Vincent Bernat3c2f2f22016-04-03 13:48:42 +02001257 swap_buffer = calloc(1, global.tune.bufsize);
1258 get_http_auth_buff = calloc(1, global.tune.bufsize);
Thierry FOURNIER7e25df32015-07-24 19:31:59 +02001259 static_table_key = calloc(1, sizeof(*static_table_key));
Willy Tarreau8096de92010-02-26 11:12:27 +01001260
Vincent Bernat3c2f2f22016-04-03 13:48:42 +02001261 fdinfo = calloc(1, sizeof(struct fdinfo) * (global.maxsock));
1262 fdtab = calloc(1, sizeof(struct fdtab) * (global.maxsock));
Willy Tarreauef1d1f82007-04-16 00:25:25 +02001263 /*
1264 * Note: we could register external pollers here.
1265 * Built-in pollers have been registered before main().
1266 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001267
Willy Tarreau43b78992009-01-25 15:42:27 +01001268 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001269 disable_poller("kqueue");
1270
Willy Tarreau43b78992009-01-25 15:42:27 +01001271 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001272 disable_poller("epoll");
1273
Willy Tarreau43b78992009-01-25 15:42:27 +01001274 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001275 disable_poller("poll");
1276
Willy Tarreau43b78992009-01-25 15:42:27 +01001277 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001278 disable_poller("select");
1279
1280 /* Note: we could disable any poller by name here */
1281
Christopher Fauletb3f4e142016-03-07 12:46:38 +01001282 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02001283 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01001284 fprintf(stderr, "\n");
1285 list_filters(stderr);
1286 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001287
Willy Tarreau4f60f162007-04-08 16:39:58 +02001288 if (!init_pollers()) {
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001289 Alert("No polling mechanism available.\n"
1290 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
1291 " is too low on this platform to support maxconn and the number of listeners\n"
1292 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
1293 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
Prach Pongpanichb837e682013-05-14 20:56:28 +02001294 " global maxconn setting to accommodate the system's limitation. For reference,\n"
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001295 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
1296 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
1297 " check build settings using 'haproxy -vv'.\n\n",
1298 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001299 exit(1);
1300 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001301 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1302 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001303 }
1304
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001305 if (!global.node)
1306 global.node = strdup(hostname);
1307
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01001308 if (!hlua_post_init())
1309 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01001310
Baptiste Assmann325137d2015-04-13 23:40:55 +02001311 /* initialize structures for name resolution */
1312 if (!dns_init_resolvers())
1313 exit(1);
Maxime de Roucy0f503922016-05-13 23:52:55 +02001314
1315 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001316}
1317
Simon Horman6fb82592011-07-15 13:14:11 +09001318static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09001319{
Simon Hormanac821422011-07-15 13:14:09 +09001320 struct acl_term_suite *suite, *suiteb;
1321 struct acl_term *term, *termb;
1322
Simon Horman6fb82592011-07-15 13:14:11 +09001323 if (!cond)
1324 return;
1325
1326 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
1327 list_for_each_entry_safe(term, termb, &suite->terms, list) {
1328 LIST_DEL(&term->list);
1329 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09001330 }
Simon Horman6fb82592011-07-15 13:14:11 +09001331 LIST_DEL(&suite->list);
1332 free(suite);
1333 }
1334
1335 free(cond);
1336}
1337
1338static void deinit_tcp_rules(struct list *rules)
1339{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02001340 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09001341
1342 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09001343 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09001344 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09001345 free(trule);
1346 }
1347}
1348
Simon Horman6fb82592011-07-15 13:14:11 +09001349static void deinit_stick_rules(struct list *rules)
1350{
1351 struct sticking_rule *rule, *ruleb;
1352
1353 list_for_each_entry_safe(rule, ruleb, rules, list) {
1354 LIST_DEL(&rule->list);
1355 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02001356 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09001357 free(rule);
1358 }
1359}
1360
Willy Tarreaubaaee002006-06-26 02:48:02 +02001361void deinit(void)
1362{
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001363 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001364 struct cap_hdr *h,*h_next;
1365 struct server *s,*s_next;
1366 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001367 struct acl_cond *cond, *condb;
1368 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001369 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001370 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001371 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001372 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001373 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01001374 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001375 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02001376 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01001377 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001378 struct bind_conf *bind_conf, *bind_back;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001379 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001380
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001381 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001382 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02001383 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001384 free(p->id);
1385 free(p->check_req);
1386 free(p->cookie_name);
1387 free(p->cookie_domain);
1388 free(p->url_param_name);
1389 free(p->capture_name);
1390 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09001391 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02001392 if (p->conf.logformat_string != default_http_log_format &&
1393 p->conf.logformat_string != default_tcp_log_format &&
1394 p->conf.logformat_string != clf_http_log_format)
1395 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02001396
Willy Tarreau62a61232013-04-12 18:13:46 +02001397 free(p->conf.lfs_file);
1398 free(p->conf.uniqueid_format_string);
1399 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08001400 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001401
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001402 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1403 free(p->conf.logformat_sd_string);
1404 free(p->conf.lfsd_file);
1405
Willy Tarreaua534fea2008-08-03 12:19:50 +02001406 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02001407 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001408
Willy Tarreauf4f04122010-01-28 18:10:50 +01001409 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
1410 LIST_DEL(&cwl->list);
1411 free(cwl->s);
1412 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001413 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001414
Willy Tarreauf4f04122010-01-28 18:10:50 +01001415 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
1416 LIST_DEL(&cwl->list);
1417 free(cwl->s);
1418 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001419 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001420
Willy Tarreaub80c2302007-11-30 20:51:32 +01001421 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
1422 LIST_DEL(&cond->list);
1423 prune_acl_cond(cond);
1424 free(cond);
1425 }
1426
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001427 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001428 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001429 regex_free(exp->preg);
1430 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001431 }
1432
Willy Tarreau98d04852015-05-26 12:18:29 +02001433 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001434 expb = exp;
1435 exp = exp->next;
1436 free(expb);
1437 }
1438
1439 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001440 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001441 regex_free(exp->preg);
1442 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001443 }
1444
Willy Tarreau98d04852015-05-26 12:18:29 +02001445 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001446 expb = exp;
1447 exp = exp->next;
1448 free(expb);
1449 }
1450
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001451 /* build a list of unique uri_auths */
1452 if (!ua)
1453 ua = p->uri_auth;
1454 else {
1455 /* check if p->uri_auth is unique */
1456 for (uap = ua; uap; uap=uap->next)
1457 if (uap == p->uri_auth)
1458 break;
1459
Willy Tarreauaccc4e12008-06-24 11:14:45 +02001460 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001461 /* add it, if it is */
1462 p->uri_auth->next = ua;
1463 ua = p->uri_auth;
1464 }
1465 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001466
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001467 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
1468 LIST_DEL(&acl->list);
1469 prune_acl(acl);
1470 free(acl);
1471 }
1472
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001473 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
1474 LIST_DEL(&srule->list);
1475 prune_acl_cond(srule->cond);
1476 free(srule->cond);
1477 free(srule);
1478 }
1479
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001480 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
1481 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001482 if (rule->cond) {
1483 prune_acl_cond(rule->cond);
1484 free(rule->cond);
1485 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001486 free(rule);
1487 }
1488
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001489 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
1490 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01001491 if (rdr->cond) {
1492 prune_acl_cond(rdr->cond);
1493 free(rdr->cond);
1494 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001495 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01001496 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
1497 LIST_DEL(&lf->list);
1498 free(lf);
1499 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001500 free(rdr);
1501 }
1502
William Lallemand0f99e342011-10-12 17:50:54 +02001503 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
1504 LIST_DEL(&log->list);
1505 free(log);
1506 }
1507
William Lallemand723b73a2012-02-08 16:37:49 +01001508 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
1509 LIST_DEL(&lf->list);
1510 free(lf);
1511 }
1512
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001513 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
1514 LIST_DEL(&lf->list);
1515 free(lf);
1516 }
1517
Simon Hormanac821422011-07-15 13:14:09 +09001518 deinit_tcp_rules(&p->tcp_req.inspect_rules);
1519 deinit_tcp_rules(&p->tcp_req.l4_rules);
1520
Simon Horman6fb82592011-07-15 13:14:11 +09001521 deinit_stick_rules(&p->storersp_rules);
1522 deinit_stick_rules(&p->sticking_rules);
1523
Willy Tarreaubaaee002006-06-26 02:48:02 +02001524 h = p->req_cap;
1525 while (h) {
1526 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001527 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001528 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001529 free(h);
1530 h = h_next;
1531 }/* end while(h) */
1532
1533 h = p->rsp_cap;
1534 while (h) {
1535 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001536 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001537 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001538 free(h);
1539 h = h_next;
1540 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001541
Willy Tarreaubaaee002006-06-26 02:48:02 +02001542 s = p->srv;
1543 while (s) {
1544 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001545
Willy Tarreau5b3a2022012-09-28 15:01:02 +02001546 if (s->check.task) {
1547 task_delete(s->check.task);
1548 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001549 }
Simon Hormand60d6912013-11-25 10:46:36 +09001550 if (s->agent.task) {
1551 task_delete(s->agent.task);
1552 task_free(s->agent.task);
1553 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001554
Willy Tarreau2e993902011-10-31 11:53:20 +01001555 if (s->warmup) {
1556 task_delete(s->warmup);
1557 task_free(s->warmup);
1558 }
1559
Willy Tarreaua534fea2008-08-03 12:19:50 +02001560 free(s->id);
1561 free(s->cookie);
Willy Tarreau1ae1b7b2012-09-28 15:28:30 +02001562 free(s->check.bi);
1563 free(s->check.bo);
Simon Hormand60d6912013-11-25 10:46:36 +09001564 free(s->agent.bi);
1565 free(s->agent.bo);
James Brown55f9ff12015-10-21 18:19:05 -07001566 free(s->agent.send_string);
Sárközi, László34c01792014-09-05 10:08:23 +02001567 free((char*)s->conf.file);
Christopher Faulet77fe80c2015-07-29 13:02:40 +02001568#ifdef USE_OPENSSL
1569 if (s->use_ssl || s->check.use_ssl)
1570 ssl_sock_free_srv_ctx(s);
1571#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001572 free(s);
1573 s = s_next;
1574 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001575
Willy Tarreau4348fad2012-09-20 16:48:07 +02001576 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02001577 unbind_listener(l);
1578 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001579 LIST_DEL(&l->by_fe);
1580 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001581 free(l->name);
1582 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001583 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001584 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001585
Willy Tarreau4348fad2012-09-20 16:48:07 +02001586 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001587 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
1588#ifdef USE_OPENSSL
Christopher Faulet31af49d2015-06-09 17:29:50 +02001589 ssl_sock_free_ca(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001590 ssl_sock_free_all_ctx(bind_conf);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001591 free(bind_conf->ca_file);
Christopher Faulet31af49d2015-06-09 17:29:50 +02001592 free(bind_conf->ca_sign_file);
1593 free(bind_conf->ca_sign_pass);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001594 free(bind_conf->ciphers);
Emeric Brun2b58d042012-09-20 17:10:03 +02001595 free(bind_conf->ecdhe);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001596 free(bind_conf->crl_file);
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001597#endif /* USE_OPENSSL */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001598 free(bind_conf->file);
1599 free(bind_conf->arg);
1600 LIST_DEL(&bind_conf->by_fe);
1601 free(bind_conf);
1602 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001603
Christopher Fauletd7c91962015-04-30 11:48:27 +02001604 flt_deinit(p);
1605
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001606 free(p->desc);
1607 free(p->fwdfor_hdr_name);
1608
Willy Tarreauff011f22011-01-06 17:51:27 +01001609 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06001610 free_http_res_rules(&p->http_res_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02001611 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01001612
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001613 pool_destroy2(p->req_cap_pool);
1614 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09001615 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001616
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001617 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001618 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001619 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001620 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02001621
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001622 while (ua) {
1623 uap = ua;
1624 ua = ua->next;
1625
Willy Tarreaua534fea2008-08-03 12:19:50 +02001626 free(uap->uri_prefix);
1627 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001628 free(uap->node);
1629 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001630
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001631 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001632 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001633
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001634 free(uap);
1635 }
1636
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001637 userlist_free(userlist);
1638
David Carlier834cb2e2015-09-25 12:02:25 +01001639 cfg_unregister_sections();
1640
1641 free_trash_buffers();
1642 chunk_destroy(&trash);
1643
Willy Tarreaudd815982007-10-16 12:25:14 +02001644 protocol_unbind_all();
1645
David Carlier4a026412015-06-01 13:57:22 +02001646#if defined(USE_DEVICEATLAS)
1647 deinit_deviceatlas();
1648#endif
1649
Thomas Holmes5ed33ee2015-05-14 17:14:30 +01001650#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +02001651 deinit_51degrees();
Thomas Holmes4d441a72015-05-29 12:54:25 +01001652#endif
Thomas Holmes5ed33ee2015-05-14 17:14:30 +01001653
scientiamobiled0027ed2016-11-04 10:55:08 +01001654#ifdef USE_WURFL
1655 ha_wurfl_deinit();
1656#endif
1657
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001658 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02001659 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001660 free(global.chroot); global.chroot = NULL;
1661 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001662 free(global.node); global.node = NULL;
1663 free(global.desc); global.desc = NULL;
Godbach4cc1b0d2013-06-26 16:49:51 +08001664 free(fdinfo); fdinfo = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001665 free(fdtab); fdtab = NULL;
1666 free(oldpids); oldpids = NULL;
David Carlier834cb2e2015-09-25 12:02:25 +01001667 free(static_table_key); static_table_key = NULL;
1668 free(get_http_auth_buff); get_http_auth_buff = NULL;
1669 free(swap_buffer); swap_buffer = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001670 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001671
William Lallemand0f99e342011-10-12 17:50:54 +02001672 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1673 LIST_DEL(&log->list);
1674 free(log);
1675 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001676 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001677 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01001678 LIST_DEL(&wl->list);
1679 free(wl);
1680 }
1681
Christopher Fauletff2613e2016-11-09 11:36:17 +01001682 vars_prune(&global.vars, NULL, NULL);
1683
Willy Tarreau87b09662015-04-03 00:22:06 +02001684 pool_destroy2(pool2_stream);
Willy Tarreaufeb76402015-04-03 14:10:06 +02001685 pool_destroy2(pool2_session);
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001686 pool_destroy2(pool2_connection);
Willy Tarreau9b28e032012-10-12 23:49:43 +02001687 pool_destroy2(pool2_buffer);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001688 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001689 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001690 pool_destroy2(pool2_capture);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001691 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001692 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001693 pool_destroy2(pool2_hdr_idx);
Willy Tarreau63986c72015-04-03 22:55:33 +02001694 pool_destroy2(pool2_http_txn);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001695 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001696} /* end deinit() */
1697
Willy Tarreaubb545b42010-08-25 12:58:59 +02001698/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1699 * pids the signal was correctly delivered to.
1700 */
1701static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001702{
1703 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001704 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001705 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001706 if (kill(oldpids[p], sig) == 0)
1707 ret++;
1708 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001709}
1710
Willy Tarreau918ff602011-07-25 16:33:49 +02001711/* Runs the polling loop */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001712void run_poll_loop()
1713{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001714 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001715
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001716 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001717 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001718 /* Process a few tasks */
1719 process_runnable_tasks();
1720
Willy Tarreau29857942009-05-10 09:01:21 +02001721 /* check if we caught some signals and process them */
1722 signal_process_queue();
1723
Willy Tarreau58b458d2008-06-29 22:40:23 +02001724 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001725 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001726
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001727 /* stop when there's nothing left to do */
1728 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001729 break;
1730
Willy Tarreau10146c92015-04-13 20:44:19 +02001731 /* expire immediately if events are pending */
Willy Tarreau64bca9d2015-09-25 17:39:23 +02001732 if (fd_cache_num || run_queue || signal_queue_len || !LIST_ISEMPTY(&applet_active_queue))
Willy Tarreau10146c92015-04-13 20:44:19 +02001733 next = now_ms;
1734
Willy Tarreau58b458d2008-06-29 22:40:23 +02001735 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001736 cur_poller.poll(&cur_poller, next);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01001737 fd_process_cached_events();
Willy Tarreau3c595ac2015-04-19 09:59:31 +02001738 applet_run_active();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001739 }
1740}
1741
Willy Tarreaue9b26022011-08-01 20:57:55 +02001742/* This is the global management task for listeners. It enables listeners waiting
1743 * for global resources when there are enough free resource, or at least once in
1744 * a while. It is designed to be called as a task.
1745 */
1746static struct task *manage_global_listener_queue(struct task *t)
1747{
1748 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001749 /* queue is empty, nothing to do */
1750 if (LIST_ISEMPTY(&global_listener_queue))
1751 goto out;
1752
1753 /* If there are still too many concurrent connections, let's wait for
1754 * some of them to go away. We don't need to re-arm the timer because
1755 * each of them will scan the queue anyway.
1756 */
1757 if (unlikely(actconn >= global.maxconn))
1758 goto out;
1759
1760 /* We should periodically try to enable listeners waiting for a global
1761 * resource here, because it is possible, though very unlikely, that
1762 * they have been blocked by a temporary lack of global resource such
1763 * as a file descriptor or memory and that the temporary condition has
1764 * disappeared.
1765 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001766 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001767
1768 out:
1769 t->expire = next;
1770 task_queue(t);
1771 return t;
1772}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001773
Willy Tarreaubaaee002006-06-26 02:48:02 +02001774int main(int argc, char **argv)
1775{
1776 int err, retry;
1777 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001778 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02001779 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001780
Emeric Bruncf20bf12010-10-22 16:06:11 +02001781 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001782 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1783 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1784 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001785
Willy Tarreaue437c442010-03-17 18:02:46 +01001786 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1787 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1788 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001789 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001790 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001791
Willy Tarreaudc23a922011-02-16 11:10:36 +01001792 /* ulimits */
1793 if (!global.rlimit_nofile)
1794 global.rlimit_nofile = global.maxsock;
1795
1796 if (global.rlimit_nofile) {
1797 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1798 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02001799 /* try to set it to the max possible at least */
1800 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02001801 limit.rlim_cur = limit.rlim_max;
1802 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
1803 getrlimit(RLIMIT_NOFILE, &limit);
1804
Willy Tarreauef635472016-06-21 11:48:18 +02001805 Warning("[%s.main()] Cannot raise FD limit to %d, limit is %d.\n", argv[0], global.rlimit_nofile, (int)limit.rlim_cur);
1806 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01001807 }
1808 }
1809
1810 if (global.rlimit_memmax) {
1811 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01001812 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01001813#ifdef RLIMIT_AS
1814 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1815 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1816 argv[0], global.rlimit_memmax);
1817 }
1818#else
1819 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1820 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1821 argv[0], global.rlimit_memmax);
1822 }
1823#endif
1824 }
1825
Willy Tarreaubaaee002006-06-26 02:48:02 +02001826 /* We will loop at most 100 times with 10 ms delay each time.
1827 * That's at most 1 second. We only send a signal to old pids
1828 * if we cannot grab at least one port.
1829 */
1830 retry = MAX_START_RETRIES;
1831 err = ERR_NONE;
1832 while (retry >= 0) {
1833 struct timeval w;
1834 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001835 /* exit the loop on no error or fatal error */
1836 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001837 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001838 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001839 break;
1840
1841 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1842 * listening sockets. So on those platforms, it would be wiser to
1843 * simply send SIGUSR1, which will not be undoable.
1844 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001845 if (tell_old_pids(SIGTTOU) == 0) {
1846 /* no need to wait if we can't contact old pids */
1847 retry = 0;
1848 continue;
1849 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001850 /* give some time to old processes to stop listening */
1851 w.tv_sec = 0;
1852 w.tv_usec = 10*1000;
1853 select(0, NULL, NULL, NULL, &w);
1854 retry--;
1855 }
1856
1857 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001858 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001859 if (retry != MAX_START_RETRIES && nb_oldpids) {
1860 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001861 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001862 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001863 exit(1);
1864 }
1865
1866 if (listeners == 0) {
Willy Tarreauf2ee0162015-08-09 11:01:51 +02001867 Alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001868 /* Note: we don't have to send anything to the old pids because we
1869 * never stopped them. */
1870 exit(1);
1871 }
1872
Emeric Bruncf20bf12010-10-22 16:06:11 +02001873 err = protocol_bind_all(errmsg, sizeof(errmsg));
1874 if ((err & ~ERR_WARN) != ERR_NONE) {
1875 if ((err & ERR_ALERT) || (err & ERR_WARN))
1876 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1877
Willy Tarreaudd815982007-10-16 12:25:14 +02001878 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1879 protocol_unbind_all(); /* cleanup everything we can */
1880 if (nb_oldpids)
1881 tell_old_pids(SIGTTIN);
1882 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001883 } else if (err & ERR_WARN) {
1884 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001885 }
1886
Willy Tarreaubaaee002006-06-26 02:48:02 +02001887 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001888 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1889 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001890
Willy Tarreaubaaee002006-06-26 02:48:02 +02001891 /* MODE_QUIET can inhibit alerts and warnings below this line */
1892
1893 global.mode &= ~MODE_STARTING;
1894 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1895 /* detach from the tty */
1896 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001897 }
1898
1899 /* open log & pid files before the chroot */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001900 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001901 unlink(global.pidfile);
1902 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1903 if (pidfd < 0) {
1904 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1905 if (nb_oldpids)
1906 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001907 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001908 exit(1);
1909 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001910 }
1911
Willy Tarreaub38651a2007-03-24 17:24:39 +01001912 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1913 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001914 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001915 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001916 exit(1);
1917 }
1918
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001919 /* If the user is not root, we'll still let him try the configuration
1920 * but we inform him that unexpected behaviour may occur.
1921 */
1922 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1923 Warning("[%s.main()] Some options which require full privileges"
1924 " might not work well.\n"
1925 "", argv[0]);
1926
Willy Tarreauf223cc02007-10-15 18:57:08 +02001927 /* chroot if needed */
1928 if (global.chroot != NULL) {
Willy Tarreau21337822012-04-29 14:11:38 +02001929 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Willy Tarreauf223cc02007-10-15 18:57:08 +02001930 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1931 if (nb_oldpids)
1932 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001933 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001934 exit(1);
1935 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02001936 }
1937
Willy Tarreaubaaee002006-06-26 02:48:02 +02001938 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001939 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001940
1941 /* Note that any error at this stage will be fatal because we will not
1942 * be able to restart the old pids.
1943 */
1944
1945 /* setgid / setuid */
Michael Schererab012dd2013-01-12 18:35:19 +01001946 if (global.gid) {
1947 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
1948 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
1949 " without 'uid'/'user' is generally useless.\n", argv[0]);
1950
1951 if (setgid(global.gid) == -1) {
1952 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
1953 protocol_unbind_all();
1954 exit(1);
1955 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001956 }
1957
1958 if (global.uid && setuid(global.uid) == -1) {
1959 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001960 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001961 exit(1);
1962 }
1963
1964 /* check ulimits */
1965 limit.rlim_cur = limit.rlim_max = 0;
1966 getrlimit(RLIMIT_NOFILE, &limit);
1967 if (limit.rlim_cur < global.maxsock) {
1968 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 +02001969 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001970 }
1971
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001972 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001973 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001974 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001975 int ret = 0;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001976 int *children = calloc(global.nbproc, sizeof(int));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001977 int proc;
Willy Tarreaub9571092016-10-25 17:20:24 +02001978 char *wrapper_fd;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001979
1980 /* the father launches the required number of processes */
1981 for (proc = 0; proc < global.nbproc; proc++) {
1982 ret = fork();
1983 if (ret < 0) {
1984 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001985 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001986 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001987 }
1988 else if (ret == 0) /* child breaks here */
1989 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001990 children[proc] = ret;
Willy Tarreau269ab312012-09-05 08:02:48 +02001991 if (pidfd >= 0) {
1992 char pidstr[100];
1993 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01001994 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001995 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001996 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001997 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001998
1999#ifdef USE_CPU_AFFINITY
2000 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02002001 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002002 global.cpu_map[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002003#ifdef __FreeBSD__
2004 cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
2005#else
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002006 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
2007#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002008#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02002009 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02002010 if (pidfd >= 0) {
2011 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
2012 close(pidfd);
2013 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02002014
Willy Tarreaub9571092016-10-25 17:20:24 +02002015 /* each child must notify the wrapper that it's ready by closing the requested fd */
2016 wrapper_fd = getenv("HAPROXY_WRAPPER_FD");
2017 if (wrapper_fd) {
2018 int pipe_fd = atoi(wrapper_fd);
2019
2020 if (pipe_fd >= 0)
2021 close(pipe_fd);
2022 }
2023
Willy Tarreaud137dd32010-08-25 12:49:05 +02002024 /* We won't ever use this anymore */
2025 free(oldpids); oldpids = NULL;
2026 free(global.chroot); global.chroot = NULL;
2027 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002028
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002029 if (proc == global.nbproc) {
2030 if (global.mode & MODE_SYSTEMD) {
William Lallemand6ad6bde2016-01-14 18:10:30 +01002031 int i;
2032
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002033 protocol_unbind_all();
William Lallemand6ad6bde2016-01-14 18:10:30 +01002034 for (i = 1; i < argc; i++) {
2035 memset(argv[i], '\0', strlen(argv[i]));
2036 }
2037 /* it's OK because "-Ds -f x" is the shortest form going here */
2038 memcpy(argv[0] + strlen(argv[0]), "-master", 8);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002039 for (proc = 0; proc < global.nbproc; proc++)
2040 while (waitpid(children[proc], NULL, 0) == -1 && errno == EINTR);
2041 }
2042 exit(0); /* parent must leave */
2043 }
2044
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002045 /* we might have to unbind some proxies from some processes */
2046 px = proxy;
2047 while (px != NULL) {
2048 if (px->bind_proc && px->state != PR_STSTOPPED) {
Willy Tarreaua9db57e2013-01-18 11:29:29 +01002049 if (!(px->bind_proc & (1UL << proc)))
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002050 stop_proxy(px);
2051 }
2052 px = px->next;
2053 }
2054
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002055 /* we might have to unbind some peers sections from some processes */
2056 for (curpeers = peers; curpeers; curpeers = curpeers->next) {
2057 if (!curpeers->peers_fe)
2058 continue;
2059
2060 if (curpeers->peers_fe->bind_proc & (1UL << proc))
2061 continue;
2062
2063 stop_proxy(curpeers->peers_fe);
2064 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02002065 signal_unregister_handler(curpeers->sighandler);
2066 task_delete(curpeers->sync_task);
2067 task_free(curpeers->sync_task);
2068 curpeers->sync_task = NULL;
2069 task_free(curpeers->peers_fe->task);
2070 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002071 curpeers->peers_fe = NULL;
2072 }
2073
Dirkjan Bussink07fcaaa2014-04-28 22:57:16 +00002074 free(children);
2075 children = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002076 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
2077 * that we can detach from the TTY. We MUST NOT do it in other cases since
2078 * it would have already be done, and 0-2 would have been affected to listening
2079 * sockets
2080 */
Willy Tarreau106cb762008-11-16 07:40:34 +01002081 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002082 /* detach from the tty */
2083 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01002084 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002085 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2086 }
2087 pid = getpid(); /* update child's pid */
2088 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02002089 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002090 }
2091
Willy Tarreaudd815982007-10-16 12:25:14 +02002092 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002093 /*
2094 * That's it : the central polling loop. Run until we stop.
2095 */
2096 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002097
Willy Tarreaubaaee002006-06-26 02:48:02 +02002098 /* Do some cleanup */
2099 deinit();
2100
2101 exit(0);
2102}
2103
2104
2105/*
2106 * Local variables:
2107 * c-indent-level: 8
2108 * c-basic-offset: 8
2109 * End:
2110 */