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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreauad90f0d2015-06-17 15:53:25 +02003 * Copyright 2000-2015 Willy Tarreau <w@1wt.eu>.
Willy Tarreaubaaee002006-06-26 02:48:02 +02004 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 *
10 * Please refer to RFC2068 or RFC2616 for informations about HTTP protocol, and
11 * RFC2965 for informations about cookies usage. More generally, the IETF HTTP
12 * Working Group's web site should be consulted for protocol related changes :
13 *
14 * http://ftp.ics.uci.edu/pub/ietf/http/
15 *
16 * Pending bugs (may be not fixed because never reproduced) :
17 * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes
18 * the proxy to terminate (no core) if the client breaks the connection during
19 * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to
20 * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be
21 * related to missing setsid() (fixed in 1.1.15)
22 * - a proxy with an invalid config will prevent the startup even if disabled.
23 *
24 * ChangeLog has moved to the CHANGELOG file.
25 *
Willy Tarreaubaaee002006-06-26 02:48:02 +020026 */
27
28#include <stdio.h>
29#include <stdlib.h>
30#include <unistd.h>
31#include <string.h>
32#include <ctype.h>
33#include <sys/time.h>
34#include <sys/types.h>
35#include <sys/socket.h>
36#include <netinet/tcp.h>
37#include <netinet/in.h>
38#include <arpa/inet.h>
39#include <netdb.h>
40#include <fcntl.h>
41#include <errno.h>
42#include <signal.h>
43#include <stdarg.h>
44#include <sys/resource.h>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010045#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020046#include <time.h>
47#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010048#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010049#ifdef USE_CPU_AFFINITY
50#define __USE_GNU
51#include <sched.h>
52#undef __USE_GNU
53#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020054
55#ifdef DEBUG_FULL
56#include <assert.h>
57#endif
58
Willy Tarreau2dd0d472006-06-29 17:53:05 +020059#include <common/base64.h>
60#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020061#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020062#include <common/compat.h>
63#include <common/config.h>
64#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010065#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020066#include <common/memory.h>
67#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010068#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020069#include <common/regex.h>
70#include <common/standard.h>
71#include <common/time.h>
72#include <common/uri_auth.h>
73#include <common/version.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020074
75#include <types/capture.h>
76#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090077#include <types/proto_tcp.h>
78#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020079#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020080
Willy Tarreau0fc45a72007-06-17 00:36:03 +020081#include <proto/acl.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020082#include <proto/applet.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020083#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020084#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020085#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020086#include <proto/channel.h>
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +020087#include <proto/checks.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +020088#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020089#include <proto/fd.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +020090#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +010091#include <proto/hlua.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020092#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020093#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +010094#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020095#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +010096#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020097#include <proto/proxy.h>
98#include <proto/queue.h>
99#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200100#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200101#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200102#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200103#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200104#include <proto/dns.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200105
Willy Tarreaub38651a2007-03-24 17:24:39 +0100106#ifdef CONFIG_HAP_CTTPROXY
107#include <proto/cttproxy.h>
108#endif
109
Emeric Brunfc0421f2012-09-07 17:30:07 +0200110#ifdef USE_OPENSSL
111#include <proto/ssl_sock.h>
112#endif
113
David Carlier4a026412015-06-01 13:57:22 +0200114#ifdef USE_DEVICEATLAS
115#include <import/da.h>
116#endif
117
Thomas Holmes6abded42015-05-12 16:23:58 +0100118#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +0200119#include <import/51d.h>
Thomas Holmes6abded42015-05-12 16:23:58 +0100120#endif
121
Willy Tarreaubaaee002006-06-26 02:48:02 +0200122/*********************************************************************/
123
Cyril Bonté6162c432012-11-10 19:27:47 +0100124extern const struct comp_algo comp_algos[];
125
Willy Tarreaubaaee002006-06-26 02:48:02 +0200126/*********************************************************************/
127
Willy Tarreau477ecd82010-01-03 21:12:30 +0100128/* list of config files */
129static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200130int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100131int relative_pid = 1; /* process id starting at 1 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200132
133/* global options */
134struct global global = {
Willy Tarreau247a13a2012-11-15 17:38:15 +0100135 .nbproc = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200136 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200137 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100138#ifdef DEFAULT_MAXZLIBMEM
Willy Tarreau5a940372012-12-03 12:10:45 +0100139 .maxzlibmem = DEFAULT_MAXZLIBMEM * 1024U * 1024U,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100140#else
William Lallemand9d5f5482012-11-07 16:12:57 +0100141 .maxzlibmem = 0,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100142#endif
William Lallemandd85f9172012-11-09 17:05:39 +0100143 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100144 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200145 .unix_bind = {
146 .ux = {
147 .uid = -1,
148 .gid = -1,
149 .mode = 0,
150 }
151 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200152 .tune = {
153 .bufsize = BUFSIZE,
154 .maxrewrite = MAXREWRITE,
Willy Tarreau43961d52010-10-04 20:39:20 +0200155 .chksize = BUFSIZE,
Willy Tarreaua24adf02014-11-27 01:11:56 +0100156 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200157 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200158#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100159 .sslcachesize = SSLCACHESIZE,
Remi Gacognef46cd6e2014-06-12 14:58:40 +0200160 .ssl_default_dh_param = SSL_DEFAULT_DH_PARAM,
Willy Tarreau03effc12014-02-12 14:55:41 +0100161#ifdef DEFAULT_SSL_MAX_RECORD
162 .ssl_max_record = DEFAULT_SSL_MAX_RECORD,
163#endif
Christopher Faulet31af49d2015-06-09 17:29:50 +0200164 .ssl_ctx_cache = DEFAULT_SSL_CTX_CACHE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200165#endif
William Lallemanda509e4c2012-11-07 16:54:34 +0100166#ifdef USE_ZLIB
167 .zlibmemlevel = 8,
168 .zlibwindowsize = MAX_WBITS,
169#endif
William Lallemandf3747832012-11-09 12:33:10 +0100170 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100171#ifdef DEFAULT_IDLE_TIMER
172 .idle_timer = DEFAULT_IDLE_TIMER,
173#else
174 .idle_timer = 1000, /* 1 second */
175#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200176 },
Emeric Brun76d88952012-10-05 15:47:31 +0200177#ifdef USE_OPENSSL
178#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200179 .maxsslconn = DEFAULT_MAXSSLCONN,
180#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200181#endif
David Carlier4a026412015-06-01 13:57:22 +0200182#ifdef USE_DEVICEATLAS
183 .deviceatlas = {
184 .loglevel = DA_SEV_INFO,
185 .useragentid = 0,
186 .jsonpath = 0,
187 .separator = '|',
188 },
189#endif
Dragan Dosenacd6b1f2015-06-11 21:36:33 +0200190#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +0200191 ._51degrees = {
192 .property_separator = ',',
193 .property_names = LIST_HEAD_INIT(global._51degrees.property_names),
194 .data_file_path = NULL,
195#ifdef FIFTYONEDEGREES_H_PATTERN_INCLUDED
196 .data_set = { },
197#endif
Dragan Dosen9373fc52015-08-07 16:41:23 +0200198 .cache_size = 0,
Dragan Dosen93b38d92015-06-29 16:43:25 +0200199 },
Dragan Dosenacd6b1f2015-06-11 21:36:33 +0200200#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200201 /* others NULL OK */
202};
203
204/*********************************************************************/
205
206int stopping; /* non zero means stopping in progress */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200207int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200208
209/* Here we store informations about the pids of the processes we may pause
210 * or kill. We will send them a signal every 10 ms until we can bind to all
211 * our ports. With 200 retries, that's about 2 seconds.
212 */
213#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200214static int *oldpids = NULL;
215static int oldpids_sig; /* use USR1 or TERM */
216
217/* this is used to drain data, and as a temporary buffer for sprintf()... */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100218struct chunk trash = { };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200219
Willy Tarreau8096de92010-02-26 11:12:27 +0100220/* this buffer is always the same size as standard buffers and is used for
221 * swapping data inside a buffer.
222 */
223char *swap_buffer = NULL;
224
Willy Tarreaubb545b42010-08-25 12:58:59 +0200225int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200226const int zero = 0;
227const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200228const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200229
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100230char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200231char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200232
Willy Tarreau89efaed2013-12-13 15:14:55 +0100233/* used from everywhere just to drain results we don't want to read and which
234 * recent versions of gcc increasingly and annoyingly complain about.
235 */
236int shut_your_big_mouth_gcc_int = 0;
237
Willy Tarreau08ceb102011-07-24 22:58:00 +0200238/* list of the temporarily limited listeners because of lack of resource */
239struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200240struct task *global_listener_queue_task;
241static struct task *manage_global_listener_queue(struct task *t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200242
Willy Tarreauff055502014-04-28 22:27:06 +0200243/* bitfield of a few warnings to emit just once (WARN_*) */
244unsigned int warned = 0;
245
Willy Tarreaubaaee002006-06-26 02:48:02 +0200246/*********************************************************************/
247/* general purpose functions ***************************************/
248/*********************************************************************/
249
250void display_version()
251{
252 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreauad90f0d2015-06-17 15:53:25 +0200253 printf("Copyright 2000-2015 Willy Tarreau <willy@haproxy.org>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200254}
255
Willy Tarreau7b066db2007-12-02 11:28:59 +0100256void display_build_opts()
257{
258 printf("Build options :"
259#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100260 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100261#endif
262#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100263 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100264#endif
265#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100266 "\n CC = " BUILD_CC
267#endif
268#ifdef BUILD_CFLAGS
269 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100270#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100271#ifdef BUILD_OPTIONS
272 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100273#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200274 "\n\nDefault settings :"
275 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
276 "\n\n",
277 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200278
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100279 printf("Encrypted password support via crypt(3): "
280#ifdef CONFIG_HAP_CRYPT
281 "yes"
282#else
283 "no"
284#endif
285 "\n");
286
Cyril Bonté6162c432012-11-10 19:27:47 +0100287#ifdef USE_ZLIB
288 printf("Built with zlib version : " ZLIB_VERSION "\n");
289#else /* USE_ZLIB */
290 printf("Built without zlib support (USE_ZLIB not set)\n");
291#endif
292 printf("Compression algorithms supported :");
293 {
294 int i;
295
Willy Tarreau615105e2015-03-28 16:40:46 +0100296 for (i = 0; comp_algos[i].cfg_name; i++) {
297 printf("%s %s(\"%s\")", (i == 0 ? "" : ","), comp_algos[i].cfg_name, comp_algos[i].ua_name);
Cyril Bonté6162c432012-11-10 19:27:47 +0100298 }
299 if (i == 0) {
300 printf("none");
301 }
302 }
303 printf("\n");
304
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200305#ifdef USE_OPENSSL
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200306 printf("Built with OpenSSL version : "
307#ifdef OPENSSL_IS_BORINGSSL
308 "BoringSSL\n");
309#else /* OPENSSL_IS_BORINGSSL */
310 OPENSSL_VERSION_TEXT "\n");
Willy Tarreau0cff0db2013-04-26 18:16:13 +0200311 printf("Running on OpenSSL version : %s%s\n",
312 SSLeay_version(SSLEAY_VERSION),
313 ((OPENSSL_VERSION_NUMBER ^ SSLeay()) >> 8) ? " (VERSIONS DIFFER!)" : "");
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200314#endif
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200315 printf("OpenSSL library supports TLS extensions : "
316#if OPENSSL_VERSION_NUMBER < 0x00907000L
317 "no (library version too old)"
318#elif defined(OPENSSL_NO_TLSEXT)
319 "no (disabled via OPENSSL_NO_TLSEXT)"
320#else
321 "yes"
322#endif
323 "\n");
324 printf("OpenSSL library supports SNI : "
325#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
326 "yes"
327#else
328#ifdef OPENSSL_NO_TLSEXT
329 "no (because of OPENSSL_NO_TLSEXT)"
330#else
331 "no (version might be too old, 0.9.8f min needed)"
332#endif
333#endif
334 "\n");
335 printf("OpenSSL library supports prefer-server-ciphers : "
336#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
337 "yes"
338#else
339 "no (0.9.7 or later needed)"
340#endif
341 "\n");
342#else /* USE_OPENSSL */
343 printf("Built without OpenSSL support (USE_OPENSSL not set)\n");
344#endif
Lukas Tribusea68d362013-04-04 12:24:16 +0200345
346#ifdef USE_PCRE
347 printf("Built with PCRE version : %s", pcre_version());
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200348 printf("\nPCRE library supports JIT : ");
349#ifdef USE_PCRE_JIT
350 {
351 int r;
352 pcre_config(PCRE_CONFIG_JIT, &r);
353 if (r)
354 printf("yes");
355 else
356 printf("no (libpcre build without JIT?)");
357 }
Lukas Tribusea68d362013-04-04 12:24:16 +0200358#else
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200359 printf("no (USE_PCRE_JIT not set)");
Lukas Tribusea68d362013-04-04 12:24:16 +0200360#endif
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200361 printf("\n");
Lukas Tribusea68d362013-04-04 12:24:16 +0200362#else
363 printf("Built without PCRE support (using libc's regex instead)\n");
364#endif
365
Cyril Bonté47eb2192015-03-02 00:08:39 +0100366#ifdef USE_LUA
367 printf("Built with Lua version : %s\n", LUA_RELEASE);
368#else
369 printf("Built without Lua support\n");
370#endif
371
Pieter Baauwd551fb52013-05-08 22:49:23 +0200372#if defined(CONFIG_HAP_TRANSPARENT) || defined(CONFIG_HAP_CTTPROXY)
373 printf("Built with transparent proxy support using:"
374#if defined(CONFIG_HAP_CTTPROXY)
375 " CTTPROXY"
376#endif
377#if defined(IP_TRANSPARENT)
378 " IP_TRANSPARENT"
379#endif
380#if defined(IPV6_TRANSPARENT)
381 " IPV6_TRANSPARENT"
382#endif
383#if defined(IP_FREEBIND)
384 " IP_FREEBIND"
385#endif
Pieter Baauwff30b662013-05-08 23:22:39 +0200386#if defined(IP_BINDANY)
387 " IP_BINDANY"
388#endif
389#if defined(IPV6_BINDANY)
390 " IPV6_BINDANY"
391#endif
Pieter Baauw1eb75922013-05-08 23:30:23 +0200392#if defined(SO_BINDANY)
393 " SO_BINDANY"
394#endif
Pieter Baauwd551fb52013-05-08 22:49:23 +0200395 "\n");
396#endif
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100397
398#if defined(CONFIG_HAP_NS)
399 printf("Built with network namespace support\n");
400#endif
Thomas Holmes6abded42015-05-12 16:23:58 +0100401
402#ifdef USE_51DEGREES
403 printf("Built with 51Degrees support\n");
404#endif
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100405 putchar('\n');
406
Willy Tarreaube5b6852009-10-03 18:57:08 +0200407 list_pollers(stdout);
408 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100409}
410
Willy Tarreaubaaee002006-06-26 02:48:02 +0200411/*
412 * This function prints the command line usage and exits
413 */
414void usage(char *name)
415{
416 display_version();
417 fprintf(stderr,
Willy Tarreau5d01a632009-06-22 16:02:30 +0200418 "Usage : %s [-f <cfgfile>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200419 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200420 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100421 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200422 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200423 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200424 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200425 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200426 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200427 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200428 " -n sets the maximum total # of connections (%d)\n"
429 " -m limits the usable amount of memory (in MB)\n"
430 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200431 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200432 " -p writes pids of all children to this file\n"
433#if defined(ENABLE_EPOLL)
434 " -de disables epoll() usage even when available\n"
435#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200436#if defined(ENABLE_KQUEUE)
437 " -dk disables kqueue() usage even when available\n"
438#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200439#if defined(ENABLE_POLL)
440 " -dp disables poll() usage even when available\n"
441#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200442#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100443 " -dS disables splice usage (broken on old kernels)\n"
444#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200445#if defined(USE_GETADDRINFO)
446 " -dG disables getaddrinfo() usage\n"
447#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100448 " -dV disables SSL verify on servers side\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200449 " -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.\n"
450 "\n",
451 name, DEFAULT_MAXCONN, cfg_maxpconn);
452 exit(1);
453}
454
455
456
457/*********************************************************************/
458/* more specific functions ***************************************/
459/*********************************************************************/
460
461/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200462 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
463 * a signal zero to all subscribers. This means that it's as easy as
464 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200465 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200466void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200467{
468 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200469 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200470 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200471}
472
473/*
474 * upon SIGTTOU, we pause everything
475 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200476void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200477{
478 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200479 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200480}
481
482/*
483 * upon SIGTTIN, let's have a soft stop.
484 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200485void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200486{
Willy Tarreaube58c382011-07-24 18:28:10 +0200487 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200488}
489
490/*
491 * this function dumps every server's state when the process receives SIGHUP.
492 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200493void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200494{
495 struct proxy *p = proxy;
496
497 Warning("SIGHUP received, dumping servers states.\n");
498 while (p) {
499 struct server *s = p->srv;
500
501 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
502 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100503 chunk_printf(&trash,
504 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
505 p->id, s->id,
Willy Tarreau892337c2014-05-13 23:41:20 +0200506 (s->state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100507 s->cur_sess, s->nbpend, s->counters.cum_sess);
508 Warning("%s\n", trash.str);
509 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200510 s = s->next;
511 }
512
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200513 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
514 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100515 chunk_printf(&trash,
516 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
517 p->id,
518 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 +0200519 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100520 chunk_printf(&trash,
521 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
522 p->id,
523 (p->srv_bck) ? "is running on backup servers" : "has no server available",
524 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 +0200525 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100526 chunk_printf(&trash,
527 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
528 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
529 p->id, p->srv_act, p->srv_bck,
530 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 +0200531 }
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100532 Warning("%s\n", trash.str);
533 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200534
535 p = p->next;
536 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200537}
538
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200539void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200540{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200541 /* dump memory usage then free everything possible */
542 dump_pools();
543 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200544}
545
Willy Tarreaubaaee002006-06-26 02:48:02 +0200546/*
547 * This function initializes all the necessary variables. It only returns
548 * if everything is OK. If something fails, it exits.
549 */
550void init(int argc, char **argv)
551{
Willy Tarreaubaaee002006-06-26 02:48:02 +0200552 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200553 char *tmp;
554 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200555 int err_code = 0;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100556 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000557 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200558 char *change_dir = NULL;
Yuxans Yao4e25b012012-10-19 10:36:09 +0800559 struct tm curtime;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200560
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100561 chunk_init(&trash, malloc(global.tune.bufsize), global.tune.bufsize);
Willy Tarreau2819e992013-12-13 14:41:10 +0100562 alloc_trash_buffers(global.tune.bufsize);
David du Colombier7af46052012-05-16 14:16:48 +0200563
Emeric Brun2b920a12010-09-23 18:30:22 +0200564 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
565 * the string in case of truncation, and at least FreeBSD appears not to do
566 * it.
567 */
568 memset(hostname, 0, sizeof(hostname));
569 gethostname(hostname, sizeof(hostname) - 1);
570 memset(localpeer, 0, sizeof(localpeer));
571 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
572
Willy Tarreaubaaee002006-06-26 02:48:02 +0200573 /*
574 * Initialize the previously static variables.
575 */
576
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100577 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200578
579
580#ifdef HAPROXY_MEMMAX
581 global.rlimit_memmax = HAPROXY_MEMMAX;
582#endif
583
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200584 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200585 start_date = now;
586
Willy Tarreau84310e22014-02-14 11:59:04 +0100587 srandom(now_ms - getpid());
588
Yuxans Yao4e25b012012-10-19 10:36:09 +0800589 /* Get the numeric timezone. */
590 get_localtime(start_date.tv_sec, &curtime);
591 strftime(localtimezone, 6, "%z", &curtime);
592
Willy Tarreau29857942009-05-10 09:01:21 +0200593 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100594 if (init_acl() != 0)
595 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200596 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +0200597 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200598 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200599 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +0200600 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200601 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100602 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200603
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100604 /* Initialise lua. */
605 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100606
Willy Tarreau43b78992009-01-25 15:42:27 +0100607 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200608#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100609 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200610#endif
611#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100612 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200613#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200614#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100615 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200616#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200617#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100618 global.tune.options |= GTUNE_USE_SPLICE;
619#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200620#if defined(USE_GETADDRINFO)
621 global.tune.options |= GTUNE_USE_GAI;
622#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200623
624 pid = getpid();
625 progname = *argv;
626 while ((tmp = strchr(progname, '/')) != NULL)
627 progname = tmp + 1;
628
Kevinm48936af2010-12-22 16:08:21 +0000629 /* the process name is used for the logs only */
630 global.log_tag = strdup(progname);
631
Willy Tarreaubaaee002006-06-26 02:48:02 +0200632 argc--; argv++;
633 while (argc > 0) {
634 char *flag;
635
636 if (**argv == '-') {
637 flag = *argv+1;
638
639 /* 1 arg */
640 if (*flag == 'v') {
641 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100642 if (flag[1] == 'v') /* -vv */
643 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200644 exit(0);
645 }
646#if defined(ENABLE_EPOLL)
647 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100648 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200649#endif
650#if defined(ENABLE_POLL)
651 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100652 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200653#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200654#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200655 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100656 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200657#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200658#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100659 else if (*flag == 'd' && flag[1] == 'S')
660 global.tune.options &= ~GTUNE_USE_SPLICE;
661#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200662#if defined(USE_GETADDRINFO)
663 else if (*flag == 'd' && flag[1] == 'G')
664 global.tune.options &= ~GTUNE_USE_GAI;
665#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100666 else if (*flag == 'd' && flag[1] == 'V')
667 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200668 else if (*flag == 'V')
669 arg_mode |= MODE_VERBOSE;
670 else if (*flag == 'd' && flag[1] == 'b')
671 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +0200672 else if (*flag == 'd' && flag[1] == 'M')
673 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreaubaaee002006-06-26 02:48:02 +0200674 else if (*flag == 'd')
675 arg_mode |= MODE_DEBUG;
676 else if (*flag == 'c')
677 arg_mode |= MODE_CHECK;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100678 else if (*flag == 'D') {
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200679 arg_mode |= MODE_DAEMON;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100680 if (flag[1] == 's') /* -Ds */
681 arg_mode |= MODE_SYSTEMD;
682 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200683 else if (*flag == 'q')
684 arg_mode |= MODE_QUIET;
685 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
686 /* list of pids to finish ('f') or terminate ('t') */
687
688 if (flag[1] == 'f')
689 oldpids_sig = SIGUSR1; /* finish then exit */
690 else
691 oldpids_sig = SIGTERM; /* terminate immediately */
692 argv++; argc--;
693
694 if (argc > 0) {
695 oldpids = calloc(argc, sizeof(int));
696 while (argc > 0) {
697 oldpids[nb_oldpids] = atol(*argv);
698 if (oldpids[nb_oldpids] <= 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200699 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200700 argc--; argv++;
701 nb_oldpids++;
702 }
703 }
704 }
705 else { /* >=2 args */
706 argv++; argc--;
707 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200708 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200709
710 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200711 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200712 case 'n' : cfg_maxconn = atol(*argv); break;
713 case 'm' : global.rlimit_memmax = atol(*argv); break;
714 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200715 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200716 case 'f' :
Willy Tarreau477ecd82010-01-03 21:12:30 +0100717 wl = (struct wordlist *)calloc(1, sizeof(*wl));
718 if (!wl) {
719 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200720 exit(1);
721 }
Willy Tarreau477ecd82010-01-03 21:12:30 +0100722 wl->s = *argv;
723 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200724 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200725 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200726 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200727 }
728 }
729 }
730 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200731 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200732 argv++; argc--;
733 }
734
735 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100736 (arg_mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_FOREGROUND | MODE_VERBOSE
Willy Tarreaubaaee002006-06-26 02:48:02 +0200737 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
738
Willy Tarreau477ecd82010-01-03 21:12:30 +0100739 if (LIST_ISEMPTY(&cfg_cfgfiles))
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200740 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200741
Willy Tarreau576132e2011-09-10 19:26:56 +0200742 if (change_dir && chdir(change_dir) < 0) {
743 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
744 exit(1);
745 }
746
Willy Tarreaubaaee002006-06-26 02:48:02 +0200747 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200748
749 init_default_instance();
750
Willy Tarreau477ecd82010-01-03 21:12:30 +0100751 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100752 int ret;
753
Willy Tarreau477ecd82010-01-03 21:12:30 +0100754 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100755 if (ret == -1) {
756 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100757 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100758 exit(1);
759 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100760 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100761 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100762 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200763 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200764 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200765 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200766
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100767 pattern_finalize_config();
Nenad Merdanovic200b0fa2015-05-09 08:46:01 +0200768#if (defined SSL_CTRL_SET_TLSEXT_TICKET_KEY_CB && TLS_TICKETS_NO > 0)
769 tlskeys_finalize_config();
770#endif
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100771
Willy Tarreaubb925012009-07-23 13:36:36 +0200772 err_code |= check_config_validity();
773 if (err_code & (ERR_ABORT|ERR_FATAL)) {
774 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200775 exit(1);
776 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200777
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100778#ifdef CONFIG_HAP_NS
779 err_code |= netns_init();
780 if (err_code & (ERR_ABORT|ERR_FATAL)) {
781 Alert("Failed to initialize namespace support.\n");
782 exit(1);
783 }
784#endif
785
Willy Tarreaubaaee002006-06-26 02:48:02 +0200786 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100787 struct peers *pr;
788 struct proxy *px;
789
790 for (pr = peers; pr; pr = pr->next)
791 if (pr->peers_fe)
792 break;
793
794 for (px = proxy; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +0200795 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100796 break;
797
798 if (pr || px) {
799 /* At least one peer or one listener has been found */
800 qfprintf(stdout, "Configuration file is valid\n");
801 exit(0);
802 }
803 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
804 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200805 }
806
Willy Tarreaue9b26022011-08-01 20:57:55 +0200807 global_listener_queue_task = task_new();
808 if (!global_listener_queue_task) {
809 Alert("Out of memory when initializing global task\n");
810 exit(1);
811 }
812 /* very simple initialization, users will queue the task if needed */
813 global_listener_queue_task->context = NULL; /* not even a context! */
814 global_listener_queue_task->process = manage_global_listener_queue;
815 global_listener_queue_task->expire = TICK_ETERNITY;
816
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200817 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200818 init_buffer();
David Carlier4a026412015-06-01 13:57:22 +0200819#if defined(USE_DEVICEATLAS)
820 init_deviceatlas();
821#endif
Dragan Dosen93b38d92015-06-29 16:43:25 +0200822#ifdef USE_51DEGREES
823 init_51degrees();
824#endif
Willy Tarreau8280d642009-09-23 23:37:52 +0200825
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200826 if (start_checks() < 0)
827 exit(1);
828
Willy Tarreaubaaee002006-06-26 02:48:02 +0200829 if (cfg_maxconn > 0)
830 global.maxconn = cfg_maxconn;
831
832 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200833 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200834 global.pidfile = strdup(cfg_pidfile);
835 }
836
Willy Tarreaud0256482015-01-15 21:45:22 +0100837 /* Now we want to compute the maxconn and possibly maxsslconn values.
838 * It's a bit tricky. If memmax is not set, maxconn defaults to
839 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
840 *
841 * If memmax is set, then it depends on which values are set. If
842 * maxsslconn is set, we use memmax to determine how many cleartext
843 * connections may be added, and set maxconn to the sum of the two.
844 * If maxconn is set and not maxsslconn, maxsslconn is computed from
845 * the remaining amount of memory between memmax and the cleartext
846 * connections. If neither are set, then it is considered that all
847 * connections are SSL-capable, and maxconn is computed based on this,
848 * then maxsslconn accordingly. We need to know if SSL is used on the
849 * frontends, backends, or both, because when it's used on both sides,
850 * we need twice the value for maxsslconn, but we only count the
851 * handshake once since it is not performed on the two sides at the
852 * same time (frontend-side is terminated before backend-side begins).
853 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +0100854 * ssl_handshake_cost during its initialization. In any case, if
855 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
856 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +0100857 */
858 if (!global.rlimit_memmax) {
859 if (global.maxconn == 0) {
860 global.maxconn = DEFAULT_MAXCONN;
861 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
862 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
863 }
864 }
865#ifdef USE_OPENSSL
866 else if (!global.maxconn && !global.maxsslconn &&
867 (global.ssl_used_frontend || global.ssl_used_backend)) {
868 /* memmax is set, compute everything automatically. Here we want
869 * to ensure that all SSL connections will be served. We take
870 * care of the number of sides where SSL is used, and consider
871 * the worst case : SSL used on both sides and doing a handshake
872 * simultaneously. Note that we can't have more than maxconn
873 * handshakes at a time by definition, so for the worst case of
874 * two SSL conns per connection, we count a single handshake.
875 */
876 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
877 int64_t mem = global.rlimit_memmax * 1048576ULL;
878
879 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
880 mem -= global.maxzlibmem;
881 mem = mem * MEM_USABLE_RATIO;
882
883 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +0200884 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +0100885 sides * global.ssl_session_max_cost + // SSL buffers, one per side
886 global.ssl_handshake_max_cost); // 1 handshake per connection max
887
888 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +0100889#ifdef SYSTEM_MAXCONN
890 if (global.maxconn > DEFAULT_MAXCONN)
891 global.maxconn = DEFAULT_MAXCONN;
892#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +0100893 global.maxsslconn = sides * global.maxconn;
894 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
895 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
896 global.maxconn, global.maxsslconn);
897 }
898 else if (!global.maxsslconn &&
899 (global.ssl_used_frontend || global.ssl_used_backend)) {
900 /* memmax and maxconn are known, compute maxsslconn automatically.
901 * maxsslconn being forced, we don't know how many of it will be
902 * on each side if both sides are being used. The worst case is
903 * when all connections use only one SSL instance because
904 * handshakes may be on two sides at the same time.
905 */
906 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
907 int64_t mem = global.rlimit_memmax * 1048576ULL;
908 int64_t sslmem;
909
910 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
911 mem -= global.maxzlibmem;
912 mem = mem * MEM_USABLE_RATIO;
913
Willy Tarreau87b09662015-04-03 00:22:06 +0200914 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +0100915 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
916 global.maxsslconn = round_2dig(global.maxsslconn);
917
918 if (sslmem <= 0 || global.maxsslconn < sides) {
919 Alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
920 "high for the global.memmax value (%d MB). The absolute maximum possible value "
921 "without SSL is %d, but %d was found and SSL is in use.\n",
922 global.rlimit_memmax,
Willy Tarreau87b09662015-04-03 00:22:06 +0200923 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
Willy Tarreaud0256482015-01-15 21:45:22 +0100924 global.maxconn);
925 exit(1);
926 }
927
928 if (global.maxsslconn > sides * global.maxconn)
929 global.maxsslconn = sides * global.maxconn;
930
931 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
932 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
933 }
934#endif
935 else if (!global.maxconn) {
936 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
937 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
938 int64_t mem = global.rlimit_memmax * 1048576ULL;
939 int64_t clearmem;
940
941 if (global.ssl_used_frontend || global.ssl_used_backend)
942 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
943
944 mem -= global.maxzlibmem;
945 mem = mem * MEM_USABLE_RATIO;
946
947 clearmem = mem;
948 if (sides)
949 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
950
Willy Tarreau87b09662015-04-03 00:22:06 +0200951 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +0100952 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +0100953#ifdef SYSTEM_MAXCONN
954 if (global.maxconn > DEFAULT_MAXCONN)
955 global.maxconn = DEFAULT_MAXCONN;
956#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +0100957
958 if (clearmem <= 0 || !global.maxconn) {
959 Alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
960 "high for the global.memmax value (%d MB). The absolute maximum possible value "
961 "is %d, but %d was found.\n",
962 global.rlimit_memmax,
963 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
964 global.maxsslconn);
965 exit(1);
966 }
967
968 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
969 if (sides && global.maxsslconn > sides * global.maxconn) {
970 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
971 "to be limited to %d. Better reduce global.maxsslconn to get more "
972 "room for extra connections.\n", global.maxsslconn, global.maxconn);
973 }
974 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
975 }
976 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200977
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100978 if (!global.maxpipes) {
979 /* maxpipes not specified. Count how many frontends and backends
980 * may be using splicing, and bound that to maxconn.
981 */
982 struct proxy *cur;
983 int nbfe = 0, nbbe = 0;
984
985 for (cur = proxy; cur; cur = cur->next) {
986 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
987 if (cur->cap & PR_CAP_FE)
988 nbfe += cur->maxconn;
989 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +0100990 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100991 }
992 }
993 global.maxpipes = MAX(nbfe, nbbe);
994 if (global.maxpipes > global.maxconn)
995 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +0100996 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100997 }
998
999
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001000 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001001 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01001002 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001003
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001004 if (global.stats_fe)
1005 global.maxsock += global.stats_fe->maxconn;
1006
1007 if (peers) {
1008 /* peers also need to bypass global maxconn */
1009 struct peers *p = peers;
1010
1011 for (p = peers; p; p = p->next)
1012 if (p->peers_fe)
1013 global.maxsock += p->peers_fe->maxconn;
1014 }
1015
Willy Tarreau1db37712007-06-03 17:16:49 +02001016 if (global.tune.maxpollevents <= 0)
1017 global.tune.maxpollevents = MAX_POLL_EVENTS;
1018
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01001019 if (global.tune.recv_enough == 0)
1020 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
1021
Willy Tarreau27a674e2009-08-17 07:23:33 +02001022 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
1023 global.tune.maxrewrite = global.tune.bufsize / 2;
1024
Willy Tarreaubaaee002006-06-26 02:48:02 +02001025 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
1026 /* command line debug mode inhibits configuration mode */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001027 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001028 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
1029 }
1030
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001031 if (arg_mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001032 /* command line daemon mode inhibits foreground and debug modes mode */
1033 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001034 global.mode |= (arg_mode & (MODE_DAEMON | MODE_SYSTEMD));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001035 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001036
1037 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001038
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001039 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET))) {
1040 Warning("<debug> mode incompatible with <quiet>, <daemon> and <systemd>. Keeping <debug> only.\n");
1041 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001042 }
1043
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001044 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_SYSTEMD))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001045 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
1046 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
1047 global.nbproc = 1;
1048 }
1049
1050 if (global.nbproc < 1)
1051 global.nbproc = 1;
1052
Willy Tarreau8096de92010-02-26 11:12:27 +01001053 swap_buffer = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau7e2c6472012-10-29 20:44:36 +01001054 get_http_auth_buff = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau07115412012-10-29 21:56:59 +01001055 static_table_key = calloc(1, sizeof(*static_table_key) + global.tune.bufsize);
Willy Tarreau8096de92010-02-26 11:12:27 +01001056
Willy Tarreau8d5d77e2009-10-18 07:25:52 +02001057 fdinfo = (struct fdinfo *)calloc(1,
1058 sizeof(struct fdinfo) * (global.maxsock));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001059 fdtab = (struct fdtab *)calloc(1,
1060 sizeof(struct fdtab) * (global.maxsock));
Willy Tarreauef1d1f82007-04-16 00:25:25 +02001061 /*
1062 * Note: we could register external pollers here.
1063 * Built-in pollers have been registered before main().
1064 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001065
Willy Tarreau43b78992009-01-25 15:42:27 +01001066 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001067 disable_poller("kqueue");
1068
Willy Tarreau43b78992009-01-25 15:42:27 +01001069 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001070 disable_poller("epoll");
1071
Willy Tarreau43b78992009-01-25 15:42:27 +01001072 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001073 disable_poller("poll");
1074
Willy Tarreau43b78992009-01-25 15:42:27 +01001075 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001076 disable_poller("select");
1077
1078 /* Note: we could disable any poller by name here */
1079
Willy Tarreau2ff76222007-04-09 19:29:56 +02001080 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1081 list_pollers(stderr);
1082
Willy Tarreau4f60f162007-04-08 16:39:58 +02001083 if (!init_pollers()) {
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001084 Alert("No polling mechanism available.\n"
1085 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
1086 " is too low on this platform to support maxconn and the number of listeners\n"
1087 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
1088 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
Prach Pongpanichb837e682013-05-14 20:56:28 +02001089 " global maxconn setting to accommodate the system's limitation. For reference,\n"
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001090 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
1091 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
1092 " check build settings using 'haproxy -vv'.\n\n",
1093 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001094 exit(1);
1095 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001096 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1097 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001098 }
1099
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001100 if (!global.node)
1101 global.node = strdup(hostname);
1102
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01001103 if (!hlua_post_init())
1104 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01001105
Baptiste Assmann325137d2015-04-13 23:40:55 +02001106 /* initialize structures for name resolution */
1107 if (!dns_init_resolvers())
1108 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001109}
1110
Simon Horman6fb82592011-07-15 13:14:11 +09001111static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09001112{
Simon Hormanac821422011-07-15 13:14:09 +09001113 struct acl_term_suite *suite, *suiteb;
1114 struct acl_term *term, *termb;
1115
Simon Horman6fb82592011-07-15 13:14:11 +09001116 if (!cond)
1117 return;
1118
1119 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
1120 list_for_each_entry_safe(term, termb, &suite->terms, list) {
1121 LIST_DEL(&term->list);
1122 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09001123 }
Simon Horman6fb82592011-07-15 13:14:11 +09001124 LIST_DEL(&suite->list);
1125 free(suite);
1126 }
1127
1128 free(cond);
1129}
1130
1131static void deinit_tcp_rules(struct list *rules)
1132{
1133 struct tcp_rule *trule, *truleb;
1134
1135 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09001136 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09001137 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09001138 free(trule);
1139 }
1140}
1141
Willy Tarreau12785782012-04-27 21:37:17 +02001142static void deinit_sample_arg(struct arg *p)
Simon Horman6fb82592011-07-15 13:14:11 +09001143{
Willy Tarreauf9954102012-04-20 14:03:29 +02001144 struct arg *p_back = p;
1145
Simon Horman6fb82592011-07-15 13:14:11 +09001146 if (!p)
1147 return;
1148
Willy Tarreauf9954102012-04-20 14:03:29 +02001149 while (p->type != ARGT_STOP) {
Willy Tarreau496aa012012-06-01 10:38:29 +02001150 if (p->type == ARGT_STR || p->unresolved) {
Willy Tarreauf9954102012-04-20 14:03:29 +02001151 free(p->data.str.str);
1152 p->data.str.str = NULL;
Willy Tarreau496aa012012-06-01 10:38:29 +02001153 p->unresolved = 0;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001154 }
Willy Tarreau46947782015-01-19 19:00:58 +01001155 else if (p->type == ARGT_REG) {
1156 if (p->data.reg) {
1157 regex_free(p->data.reg);
1158 free(p->data.reg);
1159 p->data.reg = NULL;
1160 }
1161 }
Willy Tarreauf9954102012-04-20 14:03:29 +02001162 p++;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001163 }
Simon Horman6fb82592011-07-15 13:14:11 +09001164
Willy Tarreau2e845be2012-10-19 19:49:09 +02001165 if (p_back != empty_arg_list)
1166 free(p_back);
Simon Horman6fb82592011-07-15 13:14:11 +09001167}
1168
1169static void deinit_stick_rules(struct list *rules)
1170{
1171 struct sticking_rule *rule, *ruleb;
1172
1173 list_for_each_entry_safe(rule, ruleb, rules, list) {
1174 LIST_DEL(&rule->list);
1175 deinit_acl_cond(rule->cond);
1176 if (rule->expr) {
Willy Tarreau12785782012-04-27 21:37:17 +02001177 struct sample_conv_expr *conv_expr, *conv_exprb;
Simon Horman6fb82592011-07-15 13:14:11 +09001178 list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list)
Willy Tarreau12785782012-04-27 21:37:17 +02001179 deinit_sample_arg(conv_expr->arg_p);
1180 deinit_sample_arg(rule->expr->arg_p);
Simon Horman6fb82592011-07-15 13:14:11 +09001181 free(rule->expr);
1182 }
1183 free(rule);
1184 }
1185}
1186
Willy Tarreaubaaee002006-06-26 02:48:02 +02001187void deinit(void)
1188{
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001189 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001190 struct cap_hdr *h,*h_next;
1191 struct server *s,*s_next;
1192 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001193 struct acl_cond *cond, *condb;
1194 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001195 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001196 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001197 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001198 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001199 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01001200 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001201 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02001202 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01001203 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001204 struct bind_conf *bind_conf, *bind_back;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001205 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001206
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001207 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001208 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02001209 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001210 free(p->id);
1211 free(p->check_req);
1212 free(p->cookie_name);
1213 free(p->cookie_domain);
1214 free(p->url_param_name);
1215 free(p->capture_name);
1216 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09001217 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02001218 if (p->conf.logformat_string != default_http_log_format &&
1219 p->conf.logformat_string != default_tcp_log_format &&
1220 p->conf.logformat_string != clf_http_log_format)
1221 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02001222
Willy Tarreau62a61232013-04-12 18:13:46 +02001223 free(p->conf.lfs_file);
1224 free(p->conf.uniqueid_format_string);
1225 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08001226 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001227
Willy Tarreaua534fea2008-08-03 12:19:50 +02001228 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02001229 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001230
Willy Tarreauf4f04122010-01-28 18:10:50 +01001231 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
1232 LIST_DEL(&cwl->list);
1233 free(cwl->s);
1234 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001235 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001236
Willy Tarreauf4f04122010-01-28 18:10:50 +01001237 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
1238 LIST_DEL(&cwl->list);
1239 free(cwl->s);
1240 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001241 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001242
Willy Tarreaub80c2302007-11-30 20:51:32 +01001243 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
1244 LIST_DEL(&cond->list);
1245 prune_acl_cond(cond);
1246 free(cond);
1247 }
1248
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001249 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001250 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001251 regex_free(exp->preg);
1252 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001253 }
1254
Willy Tarreau98d04852015-05-26 12:18:29 +02001255 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001256 expb = exp;
1257 exp = exp->next;
1258 free(expb);
1259 }
1260
1261 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001262 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001263 regex_free(exp->preg);
1264 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001265 }
1266
Willy Tarreau98d04852015-05-26 12:18:29 +02001267 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001268 expb = exp;
1269 exp = exp->next;
1270 free(expb);
1271 }
1272
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001273 /* build a list of unique uri_auths */
1274 if (!ua)
1275 ua = p->uri_auth;
1276 else {
1277 /* check if p->uri_auth is unique */
1278 for (uap = ua; uap; uap=uap->next)
1279 if (uap == p->uri_auth)
1280 break;
1281
Willy Tarreauaccc4e12008-06-24 11:14:45 +02001282 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001283 /* add it, if it is */
1284 p->uri_auth->next = ua;
1285 ua = p->uri_auth;
1286 }
1287 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001288
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001289 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
1290 LIST_DEL(&acl->list);
1291 prune_acl(acl);
1292 free(acl);
1293 }
1294
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001295 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
1296 LIST_DEL(&srule->list);
1297 prune_acl_cond(srule->cond);
1298 free(srule->cond);
1299 free(srule);
1300 }
1301
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001302 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
1303 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001304 if (rule->cond) {
1305 prune_acl_cond(rule->cond);
1306 free(rule->cond);
1307 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001308 free(rule);
1309 }
1310
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001311 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
1312 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01001313 if (rdr->cond) {
1314 prune_acl_cond(rdr->cond);
1315 free(rdr->cond);
1316 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001317 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01001318 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
1319 LIST_DEL(&lf->list);
1320 free(lf);
1321 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001322 free(rdr);
1323 }
1324
William Lallemand0f99e342011-10-12 17:50:54 +02001325 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
1326 LIST_DEL(&log->list);
1327 free(log);
1328 }
1329
William Lallemand723b73a2012-02-08 16:37:49 +01001330 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
1331 LIST_DEL(&lf->list);
1332 free(lf);
1333 }
1334
Simon Hormanac821422011-07-15 13:14:09 +09001335 deinit_tcp_rules(&p->tcp_req.inspect_rules);
1336 deinit_tcp_rules(&p->tcp_req.l4_rules);
1337
Simon Horman6fb82592011-07-15 13:14:11 +09001338 deinit_stick_rules(&p->storersp_rules);
1339 deinit_stick_rules(&p->sticking_rules);
1340
Willy Tarreaubaaee002006-06-26 02:48:02 +02001341 h = p->req_cap;
1342 while (h) {
1343 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001344 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001345 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001346 free(h);
1347 h = h_next;
1348 }/* end while(h) */
1349
1350 h = p->rsp_cap;
1351 while (h) {
1352 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001353 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001354 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001355 free(h);
1356 h = h_next;
1357 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001358
Willy Tarreaubaaee002006-06-26 02:48:02 +02001359 s = p->srv;
1360 while (s) {
1361 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001362
Willy Tarreau5b3a2022012-09-28 15:01:02 +02001363 if (s->check.task) {
1364 task_delete(s->check.task);
1365 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001366 }
Simon Hormand60d6912013-11-25 10:46:36 +09001367 if (s->agent.task) {
1368 task_delete(s->agent.task);
1369 task_free(s->agent.task);
1370 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001371
Willy Tarreau2e993902011-10-31 11:53:20 +01001372 if (s->warmup) {
1373 task_delete(s->warmup);
1374 task_free(s->warmup);
1375 }
1376
Willy Tarreaua534fea2008-08-03 12:19:50 +02001377 free(s->id);
1378 free(s->cookie);
Willy Tarreau1ae1b7b2012-09-28 15:28:30 +02001379 free(s->check.bi);
1380 free(s->check.bo);
Simon Hormand60d6912013-11-25 10:46:36 +09001381 free(s->agent.bi);
1382 free(s->agent.bo);
Sárközi, László34c01792014-09-05 10:08:23 +02001383 free((char*)s->conf.file);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001384 free(s);
1385 s = s_next;
1386 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001387
Willy Tarreau4348fad2012-09-20 16:48:07 +02001388 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02001389 unbind_listener(l);
1390 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001391 LIST_DEL(&l->by_fe);
1392 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001393 free(l->name);
1394 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001395 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001396 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001397
Willy Tarreau4348fad2012-09-20 16:48:07 +02001398 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001399 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
1400#ifdef USE_OPENSSL
Christopher Faulet31af49d2015-06-09 17:29:50 +02001401 ssl_sock_free_ca(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001402 ssl_sock_free_all_ctx(bind_conf);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001403 free(bind_conf->ca_file);
Christopher Faulet31af49d2015-06-09 17:29:50 +02001404 free(bind_conf->ca_sign_file);
1405 free(bind_conf->ca_sign_pass);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001406 free(bind_conf->ciphers);
Emeric Brun2b58d042012-09-20 17:10:03 +02001407 free(bind_conf->ecdhe);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001408 free(bind_conf->crl_file);
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001409#endif /* USE_OPENSSL */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001410 free(bind_conf->file);
1411 free(bind_conf->arg);
1412 LIST_DEL(&bind_conf->by_fe);
1413 free(bind_conf);
1414 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001415
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001416 free(p->desc);
1417 free(p->fwdfor_hdr_name);
1418
Willy Tarreauff011f22011-01-06 17:51:27 +01001419 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06001420 free_http_res_rules(&p->http_res_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02001421 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01001422
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001423 pool_destroy2(p->req_cap_pool);
1424 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09001425 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001426
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001427 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001428 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001429 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001430 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02001431
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001432 while (ua) {
1433 uap = ua;
1434 ua = ua->next;
1435
Willy Tarreaua534fea2008-08-03 12:19:50 +02001436 free(uap->uri_prefix);
1437 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001438 free(uap->node);
1439 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001440
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001441 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001442 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001443
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001444 free(uap);
1445 }
1446
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001447 userlist_free(userlist);
1448
Willy Tarreaudd815982007-10-16 12:25:14 +02001449 protocol_unbind_all();
1450
David Carlier4a026412015-06-01 13:57:22 +02001451#if defined(USE_DEVICEATLAS)
1452 deinit_deviceatlas();
1453#endif
1454
Thomas Holmes5ed33ee2015-05-14 17:14:30 +01001455#ifdef USE_51DEGREES
Dragan Dosen93b38d92015-06-29 16:43:25 +02001456 deinit_51degrees();
Thomas Holmes4d441a72015-05-29 12:54:25 +01001457#endif
Thomas Holmes5ed33ee2015-05-14 17:14:30 +01001458
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001459 free(global.log_send_hostname); global.log_send_hostname = NULL;
Kevinm48936af2010-12-22 16:08:21 +00001460 free(global.log_tag); global.log_tag = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001461 free(global.chroot); global.chroot = NULL;
1462 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001463 free(global.node); global.node = NULL;
1464 free(global.desc); global.desc = NULL;
Godbach4cc1b0d2013-06-26 16:49:51 +08001465 free(fdinfo); fdinfo = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001466 free(fdtab); fdtab = NULL;
1467 free(oldpids); oldpids = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001468 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001469
William Lallemand0f99e342011-10-12 17:50:54 +02001470 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1471 LIST_DEL(&log->list);
1472 free(log);
1473 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001474 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1475 LIST_DEL(&wl->list);
1476 free(wl);
1477 }
1478
Willy Tarreau87b09662015-04-03 00:22:06 +02001479 pool_destroy2(pool2_stream);
Willy Tarreaufeb76402015-04-03 14:10:06 +02001480 pool_destroy2(pool2_session);
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001481 pool_destroy2(pool2_connection);
Willy Tarreau9b28e032012-10-12 23:49:43 +02001482 pool_destroy2(pool2_buffer);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001483 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001484 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001485 pool_destroy2(pool2_capture);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001486 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001487 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001488 pool_destroy2(pool2_hdr_idx);
Willy Tarreau63986c72015-04-03 22:55:33 +02001489 pool_destroy2(pool2_http_txn);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001490
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001491 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001492} /* end deinit() */
1493
Willy Tarreaubb545b42010-08-25 12:58:59 +02001494/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1495 * pids the signal was correctly delivered to.
1496 */
1497static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001498{
1499 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001500 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001501 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001502 if (kill(oldpids[p], sig) == 0)
1503 ret++;
1504 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001505}
1506
Willy Tarreau918ff602011-07-25 16:33:49 +02001507/* Runs the polling loop */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001508void run_poll_loop()
1509{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001510 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001511
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001512 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001513 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001514 /* Process a few tasks */
1515 process_runnable_tasks();
1516
Willy Tarreau29857942009-05-10 09:01:21 +02001517 /* check if we caught some signals and process them */
1518 signal_process_queue();
1519
Willy Tarreau58b458d2008-06-29 22:40:23 +02001520 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001521 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001522
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001523 /* stop when there's nothing left to do */
1524 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001525 break;
1526
Willy Tarreau10146c92015-04-13 20:44:19 +02001527 /* expire immediately if events are pending */
Willy Tarreau3c595ac2015-04-19 09:59:31 +02001528 if (fd_cache_num || run_queue || signal_queue_len || !LIST_ISEMPTY(&applet_runq))
Willy Tarreau10146c92015-04-13 20:44:19 +02001529 next = now_ms;
1530
Willy Tarreau58b458d2008-06-29 22:40:23 +02001531 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001532 cur_poller.poll(&cur_poller, next);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01001533 fd_process_cached_events();
Willy Tarreau3c595ac2015-04-19 09:59:31 +02001534 applet_run_active();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001535 }
1536}
1537
Willy Tarreaue9b26022011-08-01 20:57:55 +02001538/* This is the global management task for listeners. It enables listeners waiting
1539 * for global resources when there are enough free resource, or at least once in
1540 * a while. It is designed to be called as a task.
1541 */
1542static struct task *manage_global_listener_queue(struct task *t)
1543{
1544 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001545 /* queue is empty, nothing to do */
1546 if (LIST_ISEMPTY(&global_listener_queue))
1547 goto out;
1548
1549 /* If there are still too many concurrent connections, let's wait for
1550 * some of them to go away. We don't need to re-arm the timer because
1551 * each of them will scan the queue anyway.
1552 */
1553 if (unlikely(actconn >= global.maxconn))
1554 goto out;
1555
1556 /* We should periodically try to enable listeners waiting for a global
1557 * resource here, because it is possible, though very unlikely, that
1558 * they have been blocked by a temporary lack of global resource such
1559 * as a file descriptor or memory and that the temporary condition has
1560 * disappeared.
1561 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001562 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001563
1564 out:
1565 t->expire = next;
1566 task_queue(t);
1567 return t;
1568}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001569
Willy Tarreaubaaee002006-06-26 02:48:02 +02001570int main(int argc, char **argv)
1571{
1572 int err, retry;
1573 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001574 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02001575 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001576
Emeric Bruncf20bf12010-10-22 16:06:11 +02001577 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001578 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1579 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1580 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001581
Willy Tarreaue437c442010-03-17 18:02:46 +01001582 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1583 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1584 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001585 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001586 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001587
Willy Tarreaudc23a922011-02-16 11:10:36 +01001588 /* ulimits */
1589 if (!global.rlimit_nofile)
1590 global.rlimit_nofile = global.maxsock;
1591
1592 if (global.rlimit_nofile) {
1593 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1594 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
1595 Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile);
1596 }
1597 }
1598
1599 if (global.rlimit_memmax) {
1600 limit.rlim_cur = limit.rlim_max =
1601 global.rlimit_memmax * 1048576 / global.nbproc;
1602#ifdef RLIMIT_AS
1603 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1604 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1605 argv[0], global.rlimit_memmax);
1606 }
1607#else
1608 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1609 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1610 argv[0], global.rlimit_memmax);
1611 }
1612#endif
1613 }
1614
Willy Tarreaubaaee002006-06-26 02:48:02 +02001615 /* We will loop at most 100 times with 10 ms delay each time.
1616 * That's at most 1 second. We only send a signal to old pids
1617 * if we cannot grab at least one port.
1618 */
1619 retry = MAX_START_RETRIES;
1620 err = ERR_NONE;
1621 while (retry >= 0) {
1622 struct timeval w;
1623 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001624 /* exit the loop on no error or fatal error */
1625 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001626 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001627 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001628 break;
1629
1630 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1631 * listening sockets. So on those platforms, it would be wiser to
1632 * simply send SIGUSR1, which will not be undoable.
1633 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001634 if (tell_old_pids(SIGTTOU) == 0) {
1635 /* no need to wait if we can't contact old pids */
1636 retry = 0;
1637 continue;
1638 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001639 /* give some time to old processes to stop listening */
1640 w.tv_sec = 0;
1641 w.tv_usec = 10*1000;
1642 select(0, NULL, NULL, NULL, &w);
1643 retry--;
1644 }
1645
1646 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001647 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001648 if (retry != MAX_START_RETRIES && nb_oldpids) {
1649 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001650 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001651 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001652 exit(1);
1653 }
1654
1655 if (listeners == 0) {
Willy Tarreauf2ee0162015-08-09 11:01:51 +02001656 Alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001657 /* Note: we don't have to send anything to the old pids because we
1658 * never stopped them. */
1659 exit(1);
1660 }
1661
Emeric Bruncf20bf12010-10-22 16:06:11 +02001662 err = protocol_bind_all(errmsg, sizeof(errmsg));
1663 if ((err & ~ERR_WARN) != ERR_NONE) {
1664 if ((err & ERR_ALERT) || (err & ERR_WARN))
1665 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1666
Willy Tarreaudd815982007-10-16 12:25:14 +02001667 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1668 protocol_unbind_all(); /* cleanup everything we can */
1669 if (nb_oldpids)
1670 tell_old_pids(SIGTTIN);
1671 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001672 } else if (err & ERR_WARN) {
1673 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001674 }
1675
Willy Tarreaubaaee002006-06-26 02:48:02 +02001676 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001677 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1678 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001679
Willy Tarreaubaaee002006-06-26 02:48:02 +02001680 /* MODE_QUIET can inhibit alerts and warnings below this line */
1681
1682 global.mode &= ~MODE_STARTING;
1683 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1684 /* detach from the tty */
1685 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001686 }
1687
1688 /* open log & pid files before the chroot */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001689 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001690 unlink(global.pidfile);
1691 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1692 if (pidfd < 0) {
1693 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1694 if (nb_oldpids)
1695 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001696 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001697 exit(1);
1698 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001699 }
1700
Willy Tarreaub38651a2007-03-24 17:24:39 +01001701#ifdef CONFIG_HAP_CTTPROXY
1702 if (global.last_checks & LSTCHK_CTTPROXY) {
1703 int ret;
1704
1705 ret = check_cttproxy_version();
1706 if (ret < 0) {
1707 Alert("[%s.main()] Cannot enable cttproxy.\n%s",
1708 argv[0],
1709 (ret == -1) ? " Incorrect module version.\n"
1710 : " Make sure you have enough permissions and that the module is loaded.\n");
Willy Tarreaudd815982007-10-16 12:25:14 +02001711 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001712 exit(1);
1713 }
1714 }
1715#endif
1716
1717 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1718 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001719 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001720 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001721 exit(1);
1722 }
1723
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001724 /* If the user is not root, we'll still let him try the configuration
1725 * but we inform him that unexpected behaviour may occur.
1726 */
1727 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1728 Warning("[%s.main()] Some options which require full privileges"
1729 " might not work well.\n"
1730 "", argv[0]);
1731
Willy Tarreauf223cc02007-10-15 18:57:08 +02001732 /* chroot if needed */
1733 if (global.chroot != NULL) {
Willy Tarreau21337822012-04-29 14:11:38 +02001734 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Willy Tarreauf223cc02007-10-15 18:57:08 +02001735 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1736 if (nb_oldpids)
1737 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001738 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001739 exit(1);
1740 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02001741 }
1742
Willy Tarreaubaaee002006-06-26 02:48:02 +02001743 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001744 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001745
1746 /* Note that any error at this stage will be fatal because we will not
1747 * be able to restart the old pids.
1748 */
1749
1750 /* setgid / setuid */
Michael Schererab012dd2013-01-12 18:35:19 +01001751 if (global.gid) {
1752 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
1753 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
1754 " without 'uid'/'user' is generally useless.\n", argv[0]);
1755
1756 if (setgid(global.gid) == -1) {
1757 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
1758 protocol_unbind_all();
1759 exit(1);
1760 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001761 }
1762
1763 if (global.uid && setuid(global.uid) == -1) {
1764 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001765 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001766 exit(1);
1767 }
1768
1769 /* check ulimits */
1770 limit.rlim_cur = limit.rlim_max = 0;
1771 getrlimit(RLIMIT_NOFILE, &limit);
1772 if (limit.rlim_cur < global.maxsock) {
1773 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 +02001774 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001775 }
1776
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001777 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001778 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001779 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001780 int ret = 0;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001781 int *children = calloc(global.nbproc, sizeof(int));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001782 int proc;
1783
1784 /* the father launches the required number of processes */
1785 for (proc = 0; proc < global.nbproc; proc++) {
1786 ret = fork();
1787 if (ret < 0) {
1788 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001789 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001790 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001791 }
1792 else if (ret == 0) /* child breaks here */
1793 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001794 children[proc] = ret;
Willy Tarreau269ab312012-09-05 08:02:48 +02001795 if (pidfd >= 0) {
1796 char pidstr[100];
1797 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01001798 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001799 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001800 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001801 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001802
1803#ifdef USE_CPU_AFFINITY
1804 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02001805 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001806 global.cpu_map[proc]) /* only do this if the process has a CPU map */
1807 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1808#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001809 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02001810 if (pidfd >= 0) {
1811 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
1812 close(pidfd);
1813 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02001814
1815 /* We won't ever use this anymore */
1816 free(oldpids); oldpids = NULL;
1817 free(global.chroot); global.chroot = NULL;
1818 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001819
Willy Tarreauedaff0a2015-05-01 17:01:08 +02001820 if (proc == global.nbproc) {
1821 if (global.mode & MODE_SYSTEMD) {
1822 protocol_unbind_all();
1823 for (proc = 0; proc < global.nbproc; proc++)
1824 while (waitpid(children[proc], NULL, 0) == -1 && errno == EINTR);
1825 }
1826 exit(0); /* parent must leave */
1827 }
1828
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001829 /* we might have to unbind some proxies from some processes */
1830 px = proxy;
1831 while (px != NULL) {
1832 if (px->bind_proc && px->state != PR_STSTOPPED) {
Willy Tarreaua9db57e2013-01-18 11:29:29 +01001833 if (!(px->bind_proc & (1UL << proc)))
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001834 stop_proxy(px);
1835 }
1836 px = px->next;
1837 }
1838
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001839 /* we might have to unbind some peers sections from some processes */
1840 for (curpeers = peers; curpeers; curpeers = curpeers->next) {
1841 if (!curpeers->peers_fe)
1842 continue;
1843
1844 if (curpeers->peers_fe->bind_proc & (1UL << proc))
1845 continue;
1846
1847 stop_proxy(curpeers->peers_fe);
1848 /* disable this peer section so that it kills itself */
1849 curpeers->peers_fe = NULL;
1850 }
1851
Dirkjan Bussink07fcaaa2014-04-28 22:57:16 +00001852 free(children);
1853 children = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001854 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
1855 * that we can detach from the TTY. We MUST NOT do it in other cases since
1856 * it would have already be done, and 0-2 would have been affected to listening
1857 * sockets
1858 */
Willy Tarreau106cb762008-11-16 07:40:34 +01001859 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001860 /* detach from the tty */
1861 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01001862 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001863 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
1864 }
1865 pid = getpid(); /* update child's pid */
1866 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02001867 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001868 }
1869
Willy Tarreaudd815982007-10-16 12:25:14 +02001870 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001871 /*
1872 * That's it : the central polling loop. Run until we stop.
1873 */
1874 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001875
Willy Tarreaubaaee002006-06-26 02:48:02 +02001876 /* Do some cleanup */
1877 deinit();
1878
1879 exit(0);
1880}
1881
1882
1883/*
1884 * Local variables:
1885 * c-indent-level: 8
1886 * c-basic-offset: 8
1887 * End:
1888 */