blob: b94252de93d8e166356a635f4d73bdfb9c8cbd2d [file] [log] [blame]
Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau1a34d572014-02-03 00:41:29 +01003 * Copyright 2000-2014 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/appsession.h>
60#include <common/base64.h>
61#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020062#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020063#include <common/compat.h>
64#include <common/config.h>
65#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010066#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020067#include <common/memory.h>
68#include <common/mini-clist.h>
69#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
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +010081#include <proto/auth.h>
Willy Tarreau0fc45a72007-06-17 00:36:03 +020082#include <proto/acl.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020083#include <proto/arg.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020084#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020085#include <proto/channel.h>
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +020086#include <proto/checks.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +020087#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020088#include <proto/fd.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +020089#include <proto/hdr_idx.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020090#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020091#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +010092#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020093#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +010094#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020095#include <proto/proxy.h>
96#include <proto/queue.h>
97#include <proto/server.h>
Willy Tarreauc6ca1a02007-05-13 19:43:47 +020098#include <proto/session.h>
Willy Tarreau29857942009-05-10 09:01:21 +020099#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200100#include <proto/task.h>
101
Willy Tarreaub38651a2007-03-24 17:24:39 +0100102#ifdef CONFIG_HAP_CTTPROXY
103#include <proto/cttproxy.h>
104#endif
105
Emeric Brunfc0421f2012-09-07 17:30:07 +0200106#ifdef USE_OPENSSL
107#include <proto/ssl_sock.h>
108#endif
109
Willy Tarreaubaaee002006-06-26 02:48:02 +0200110/*********************************************************************/
111
Cyril Bonté6162c432012-11-10 19:27:47 +0100112extern const struct comp_algo comp_algos[];
113
Willy Tarreaubaaee002006-06-26 02:48:02 +0200114/*********************************************************************/
115
Willy Tarreau477ecd82010-01-03 21:12:30 +0100116/* list of config files */
117static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200118int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100119int relative_pid = 1; /* process id starting at 1 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200120
121/* global options */
122struct global global = {
Willy Tarreau247a13a2012-11-15 17:38:15 +0100123 .nbproc = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200124 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200125 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100126#ifdef DEFAULT_MAXZLIBMEM
Willy Tarreau5a940372012-12-03 12:10:45 +0100127 .maxzlibmem = DEFAULT_MAXZLIBMEM * 1024U * 1024U,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100128#else
William Lallemand9d5f5482012-11-07 16:12:57 +0100129 .maxzlibmem = 0,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100130#endif
William Lallemandd85f9172012-11-09 17:05:39 +0100131 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100132 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200133 .unix_bind = {
134 .ux = {
135 .uid = -1,
136 .gid = -1,
137 .mode = 0,
138 }
139 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200140 .tune = {
141 .bufsize = BUFSIZE,
142 .maxrewrite = MAXREWRITE,
Willy Tarreau43961d52010-10-04 20:39:20 +0200143 .chksize = BUFSIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200144#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100145 .sslcachesize = SSLCACHESIZE,
Remi Gacognef46cd6e2014-06-12 14:58:40 +0200146 .ssl_default_dh_param = SSL_DEFAULT_DH_PARAM,
Willy Tarreau03effc12014-02-12 14:55:41 +0100147#ifdef DEFAULT_SSL_MAX_RECORD
148 .ssl_max_record = DEFAULT_SSL_MAX_RECORD,
149#endif
Emeric Brunfc32aca2012-09-03 12:10:29 +0200150#endif
William Lallemanda509e4c2012-11-07 16:54:34 +0100151#ifdef USE_ZLIB
152 .zlibmemlevel = 8,
153 .zlibwindowsize = MAX_WBITS,
154#endif
William Lallemandf3747832012-11-09 12:33:10 +0100155 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100156#ifdef DEFAULT_IDLE_TIMER
157 .idle_timer = DEFAULT_IDLE_TIMER,
158#else
159 .idle_timer = 1000, /* 1 second */
160#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200161 },
Emeric Brun76d88952012-10-05 15:47:31 +0200162#ifdef USE_OPENSSL
163#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200164 .maxsslconn = DEFAULT_MAXSSLCONN,
165#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200166#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200167 /* others NULL OK */
168};
169
170/*********************************************************************/
171
172int stopping; /* non zero means stopping in progress */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200173int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200174
175/* Here we store informations about the pids of the processes we may pause
176 * or kill. We will send them a signal every 10 ms until we can bind to all
177 * our ports. With 200 retries, that's about 2 seconds.
178 */
179#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200180static int *oldpids = NULL;
181static int oldpids_sig; /* use USR1 or TERM */
182
183/* this is used to drain data, and as a temporary buffer for sprintf()... */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100184struct chunk trash = { };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200185
Willy Tarreau8096de92010-02-26 11:12:27 +0100186/* this buffer is always the same size as standard buffers and is used for
187 * swapping data inside a buffer.
188 */
189char *swap_buffer = NULL;
190
Willy Tarreaubb545b42010-08-25 12:58:59 +0200191int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200192const int zero = 0;
193const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200194const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200195
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100196char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200197char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200198
Willy Tarreau89efaed2013-12-13 15:14:55 +0100199/* used from everywhere just to drain results we don't want to read and which
200 * recent versions of gcc increasingly and annoyingly complain about.
201 */
202int shut_your_big_mouth_gcc_int = 0;
203
Willy Tarreau08ceb102011-07-24 22:58:00 +0200204/* list of the temporarily limited listeners because of lack of resource */
205struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200206struct task *global_listener_queue_task;
207static struct task *manage_global_listener_queue(struct task *t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200208
Willy Tarreauff055502014-04-28 22:27:06 +0200209/* bitfield of a few warnings to emit just once (WARN_*) */
210unsigned int warned = 0;
211
Willy Tarreaubaaee002006-06-26 02:48:02 +0200212/*********************************************************************/
213/* general purpose functions ***************************************/
214/*********************************************************************/
215
216void display_version()
217{
218 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreau8c691712015-06-26 12:20:45 +0200219 printf("Copyright 2000-2015 Willy Tarreau <willy@haproxy.org>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200220}
221
Willy Tarreau7b066db2007-12-02 11:28:59 +0100222void display_build_opts()
223{
224 printf("Build options :"
225#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100226 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100227#endif
228#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100229 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100230#endif
231#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100232 "\n CC = " BUILD_CC
233#endif
234#ifdef BUILD_CFLAGS
235 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100236#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100237#ifdef BUILD_OPTIONS
238 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100239#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200240 "\n\nDefault settings :"
241 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
242 "\n\n",
243 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200244
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100245 printf("Encrypted password support via crypt(3): "
246#ifdef CONFIG_HAP_CRYPT
247 "yes"
248#else
249 "no"
250#endif
251 "\n");
252
Cyril Bonté6162c432012-11-10 19:27:47 +0100253#ifdef USE_ZLIB
254 printf("Built with zlib version : " ZLIB_VERSION "\n");
255#else /* USE_ZLIB */
256 printf("Built without zlib support (USE_ZLIB not set)\n");
257#endif
258 printf("Compression algorithms supported :");
259 {
260 int i;
261
262 for (i = 0; comp_algos[i].name; i++) {
263 printf("%s %s", (i == 0 ? "" : ","), comp_algos[i].name);
264 }
265 if (i == 0) {
266 printf("none");
267 }
268 }
269 printf("\n");
270
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200271#ifdef USE_OPENSSL
272 printf("Built with OpenSSL version : " OPENSSL_VERSION_TEXT "\n");
Willy Tarreau0cff0db2013-04-26 18:16:13 +0200273 printf("Running on OpenSSL version : %s%s\n",
274 SSLeay_version(SSLEAY_VERSION),
275 ((OPENSSL_VERSION_NUMBER ^ SSLeay()) >> 8) ? " (VERSIONS DIFFER!)" : "");
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200276 printf("OpenSSL library supports TLS extensions : "
277#if OPENSSL_VERSION_NUMBER < 0x00907000L
278 "no (library version too old)"
279#elif defined(OPENSSL_NO_TLSEXT)
280 "no (disabled via OPENSSL_NO_TLSEXT)"
281#else
282 "yes"
283#endif
284 "\n");
285 printf("OpenSSL library supports SNI : "
286#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
287 "yes"
288#else
289#ifdef OPENSSL_NO_TLSEXT
290 "no (because of OPENSSL_NO_TLSEXT)"
291#else
292 "no (version might be too old, 0.9.8f min needed)"
293#endif
294#endif
295 "\n");
296 printf("OpenSSL library supports prefer-server-ciphers : "
297#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
298 "yes"
299#else
300 "no (0.9.7 or later needed)"
301#endif
302 "\n");
303#else /* USE_OPENSSL */
304 printf("Built without OpenSSL support (USE_OPENSSL not set)\n");
305#endif
Lukas Tribusea68d362013-04-04 12:24:16 +0200306
307#ifdef USE_PCRE
308 printf("Built with PCRE version : %s", pcre_version());
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200309 printf("\nPCRE library supports JIT : ");
310#ifdef USE_PCRE_JIT
311 {
312 int r;
313 pcre_config(PCRE_CONFIG_JIT, &r);
314 if (r)
315 printf("yes");
316 else
317 printf("no (libpcre build without JIT?)");
318 }
Lukas Tribusea68d362013-04-04 12:24:16 +0200319#else
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200320 printf("no (USE_PCRE_JIT not set)");
Lukas Tribusea68d362013-04-04 12:24:16 +0200321#endif
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200322 printf("\n");
Lukas Tribusea68d362013-04-04 12:24:16 +0200323#else
324 printf("Built without PCRE support (using libc's regex instead)\n");
325#endif
326
Pieter Baauwd551fb52013-05-08 22:49:23 +0200327#if defined(CONFIG_HAP_TRANSPARENT) || defined(CONFIG_HAP_CTTPROXY)
328 printf("Built with transparent proxy support using:"
329#if defined(CONFIG_HAP_CTTPROXY)
330 " CTTPROXY"
331#endif
332#if defined(IP_TRANSPARENT)
333 " IP_TRANSPARENT"
334#endif
335#if defined(IPV6_TRANSPARENT)
336 " IPV6_TRANSPARENT"
337#endif
338#if defined(IP_FREEBIND)
339 " IP_FREEBIND"
340#endif
Pieter Baauwff30b662013-05-08 23:22:39 +0200341#if defined(IP_BINDANY)
342 " IP_BINDANY"
343#endif
344#if defined(IPV6_BINDANY)
345 " IPV6_BINDANY"
346#endif
Pieter Baauw1eb75922013-05-08 23:30:23 +0200347#if defined(SO_BINDANY)
348 " SO_BINDANY"
349#endif
Pieter Baauwd551fb52013-05-08 22:49:23 +0200350 "\n");
351#endif
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100352 putchar('\n');
353
Willy Tarreaube5b6852009-10-03 18:57:08 +0200354 list_pollers(stdout);
355 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100356}
357
Willy Tarreaubaaee002006-06-26 02:48:02 +0200358/*
359 * This function prints the command line usage and exits
360 */
361void usage(char *name)
362{
363 display_version();
364 fprintf(stderr,
Willy Tarreau5d01a632009-06-22 16:02:30 +0200365 "Usage : %s [-f <cfgfile>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200366 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200367 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100368 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200369 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200370 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200371 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200372 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200373 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200374 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200375 " -n sets the maximum total # of connections (%d)\n"
376 " -m limits the usable amount of memory (in MB)\n"
377 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200378 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200379 " -p writes pids of all children to this file\n"
380#if defined(ENABLE_EPOLL)
381 " -de disables epoll() usage even when available\n"
382#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200383#if defined(ENABLE_KQUEUE)
384 " -dk disables kqueue() usage even when available\n"
385#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200386#if defined(ENABLE_POLL)
387 " -dp disables poll() usage even when available\n"
388#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200389#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100390 " -dS disables splice usage (broken on old kernels)\n"
391#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200392#if defined(USE_GETADDRINFO)
393 " -dG disables getaddrinfo() usage\n"
394#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100395 " -dV disables SSL verify on servers side\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200396 " -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.\n"
397 "\n",
398 name, DEFAULT_MAXCONN, cfg_maxpconn);
399 exit(1);
400}
401
402
403
404/*********************************************************************/
405/* more specific functions ***************************************/
406/*********************************************************************/
407
408/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200409 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
410 * a signal zero to all subscribers. This means that it's as easy as
411 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200412 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200413void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200414{
415 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200416 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200417 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200418}
419
420/*
421 * upon SIGTTOU, we pause everything
422 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200423void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200424{
425 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200426 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200427}
428
429/*
430 * upon SIGTTIN, let's have a soft stop.
431 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200432void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200433{
Willy Tarreaube58c382011-07-24 18:28:10 +0200434 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200435}
436
437/*
438 * this function dumps every server's state when the process receives SIGHUP.
439 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200440void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200441{
442 struct proxy *p = proxy;
443
444 Warning("SIGHUP received, dumping servers states.\n");
445 while (p) {
446 struct server *s = p->srv;
447
448 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
449 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100450 chunk_printf(&trash,
451 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
452 p->id, s->id,
Willy Tarreau892337c2014-05-13 23:41:20 +0200453 (s->state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100454 s->cur_sess, s->nbpend, s->counters.cum_sess);
455 Warning("%s\n", trash.str);
456 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200457 s = s->next;
458 }
459
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200460 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
461 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100462 chunk_printf(&trash,
463 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
464 p->id,
465 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 +0200466 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100467 chunk_printf(&trash,
468 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
469 p->id,
470 (p->srv_bck) ? "is running on backup servers" : "has no server available",
471 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 +0200472 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100473 chunk_printf(&trash,
474 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
475 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
476 p->id, p->srv_act, p->srv_bck,
477 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 +0200478 }
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100479 Warning("%s\n", trash.str);
480 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200481
482 p = p->next;
483 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200484}
485
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200486void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200487{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200488 /* dump memory usage then free everything possible */
489 dump_pools();
490 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200491}
492
Willy Tarreaubaaee002006-06-26 02:48:02 +0200493/*
494 * This function initializes all the necessary variables. It only returns
495 * if everything is OK. If something fails, it exits.
496 */
497void init(int argc, char **argv)
498{
Willy Tarreaubaaee002006-06-26 02:48:02 +0200499 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200500 char *tmp;
501 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200502 int err_code = 0;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100503 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000504 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200505 char *change_dir = NULL;
Yuxans Yao4e25b012012-10-19 10:36:09 +0800506 struct tm curtime;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200507
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100508 chunk_init(&trash, malloc(global.tune.bufsize), global.tune.bufsize);
Willy Tarreau2819e992013-12-13 14:41:10 +0100509 alloc_trash_buffers(global.tune.bufsize);
David du Colombier7af46052012-05-16 14:16:48 +0200510
Emeric Brun2b920a12010-09-23 18:30:22 +0200511 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
512 * the string in case of truncation, and at least FreeBSD appears not to do
513 * it.
514 */
515 memset(hostname, 0, sizeof(hostname));
516 gethostname(hostname, sizeof(hostname) - 1);
517 memset(localpeer, 0, sizeof(localpeer));
518 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
519
Willy Tarreaubaaee002006-06-26 02:48:02 +0200520 /*
521 * Initialize the previously static variables.
522 */
523
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100524 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200525
526
527#ifdef HAPROXY_MEMMAX
528 global.rlimit_memmax = HAPROXY_MEMMAX;
529#endif
530
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200531 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200532 start_date = now;
533
Willy Tarreau84310e22014-02-14 11:59:04 +0100534 srandom(now_ms - getpid());
535
Yuxans Yao4e25b012012-10-19 10:36:09 +0800536 /* Get the numeric timezone. */
537 get_localtime(start_date.tv_sec, &curtime);
538 strftime(localtimezone, 6, "%z", &curtime);
539
Willy Tarreau29857942009-05-10 09:01:21 +0200540 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100541 if (init_acl() != 0)
542 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200543 init_task();
544 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200545 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +0200546 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200547 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100548 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200549
Willy Tarreau43b78992009-01-25 15:42:27 +0100550 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200551#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100552 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200553#endif
554#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100555 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200556#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200557#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100558 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200559#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200560#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100561 global.tune.options |= GTUNE_USE_SPLICE;
562#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200563#if defined(USE_GETADDRINFO)
564 global.tune.options |= GTUNE_USE_GAI;
565#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200566
567 pid = getpid();
568 progname = *argv;
569 while ((tmp = strchr(progname, '/')) != NULL)
570 progname = tmp + 1;
571
Kevinm48936af2010-12-22 16:08:21 +0000572 /* the process name is used for the logs only */
573 global.log_tag = strdup(progname);
574
Willy Tarreaubaaee002006-06-26 02:48:02 +0200575 argc--; argv++;
576 while (argc > 0) {
577 char *flag;
578
579 if (**argv == '-') {
580 flag = *argv+1;
581
582 /* 1 arg */
583 if (*flag == 'v') {
584 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100585 if (flag[1] == 'v') /* -vv */
586 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200587 exit(0);
588 }
589#if defined(ENABLE_EPOLL)
590 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100591 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200592#endif
593#if defined(ENABLE_POLL)
594 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100595 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200596#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200597#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200598 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100599 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200600#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200601#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100602 else if (*flag == 'd' && flag[1] == 'S')
603 global.tune.options &= ~GTUNE_USE_SPLICE;
604#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200605#if defined(USE_GETADDRINFO)
606 else if (*flag == 'd' && flag[1] == 'G')
607 global.tune.options &= ~GTUNE_USE_GAI;
608#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100609 else if (*flag == 'd' && flag[1] == 'V')
610 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200611 else if (*flag == 'V')
612 arg_mode |= MODE_VERBOSE;
613 else if (*flag == 'd' && flag[1] == 'b')
614 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +0200615 else if (*flag == 'd' && flag[1] == 'M')
616 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreaubaaee002006-06-26 02:48:02 +0200617 else if (*flag == 'd')
618 arg_mode |= MODE_DEBUG;
619 else if (*flag == 'c')
620 arg_mode |= MODE_CHECK;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100621 else if (*flag == 'D') {
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200622 arg_mode |= MODE_DAEMON;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100623 if (flag[1] == 's') /* -Ds */
624 arg_mode |= MODE_SYSTEMD;
625 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200626 else if (*flag == 'q')
627 arg_mode |= MODE_QUIET;
628 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
629 /* list of pids to finish ('f') or terminate ('t') */
630
631 if (flag[1] == 'f')
632 oldpids_sig = SIGUSR1; /* finish then exit */
633 else
634 oldpids_sig = SIGTERM; /* terminate immediately */
635 argv++; argc--;
636
637 if (argc > 0) {
638 oldpids = calloc(argc, sizeof(int));
639 while (argc > 0) {
640 oldpids[nb_oldpids] = atol(*argv);
641 if (oldpids[nb_oldpids] <= 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200642 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200643 argc--; argv++;
644 nb_oldpids++;
645 }
646 }
647 }
648 else { /* >=2 args */
649 argv++; argc--;
650 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200651 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200652
653 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200654 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200655 case 'n' : cfg_maxconn = atol(*argv); break;
656 case 'm' : global.rlimit_memmax = atol(*argv); break;
657 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200658 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200659 case 'f' :
Willy Tarreau477ecd82010-01-03 21:12:30 +0100660 wl = (struct wordlist *)calloc(1, sizeof(*wl));
661 if (!wl) {
662 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200663 exit(1);
664 }
Willy Tarreau477ecd82010-01-03 21:12:30 +0100665 wl->s = *argv;
666 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200667 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200668 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200669 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200670 }
671 }
672 }
673 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200674 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200675 argv++; argc--;
676 }
677
678 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100679 (arg_mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_FOREGROUND | MODE_VERBOSE
Willy Tarreaubaaee002006-06-26 02:48:02 +0200680 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
681
Willy Tarreau477ecd82010-01-03 21:12:30 +0100682 if (LIST_ISEMPTY(&cfg_cfgfiles))
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200683 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200684
Willy Tarreau576132e2011-09-10 19:26:56 +0200685 if (change_dir && chdir(change_dir) < 0) {
686 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
687 exit(1);
688 }
689
Willy Tarreaubaaee002006-06-26 02:48:02 +0200690 have_appsession = 0;
691 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200692
693 init_default_instance();
694
Willy Tarreau477ecd82010-01-03 21:12:30 +0100695 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100696 int ret;
697
Willy Tarreau477ecd82010-01-03 21:12:30 +0100698 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100699 if (ret == -1) {
700 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100701 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100702 exit(1);
703 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100704 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100705 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100706 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200707 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200708 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200709 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200710
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100711 pattern_finalize_config();
712
Willy Tarreaubb925012009-07-23 13:36:36 +0200713 err_code |= check_config_validity();
714 if (err_code & (ERR_ABORT|ERR_FATAL)) {
715 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200716 exit(1);
717 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200718
719 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100720 struct peers *pr;
721 struct proxy *px;
722
723 for (pr = peers; pr; pr = pr->next)
724 if (pr->peers_fe)
725 break;
726
727 for (px = proxy; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +0200728 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100729 break;
730
731 if (pr || px) {
732 /* At least one peer or one listener has been found */
733 qfprintf(stdout, "Configuration file is valid\n");
734 exit(0);
735 }
736 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
737 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200738 }
739
Willy Tarreaue9b26022011-08-01 20:57:55 +0200740 global_listener_queue_task = task_new();
741 if (!global_listener_queue_task) {
742 Alert("Out of memory when initializing global task\n");
743 exit(1);
744 }
745 /* very simple initialization, users will queue the task if needed */
746 global_listener_queue_task->context = NULL; /* not even a context! */
747 global_listener_queue_task->process = manage_global_listener_queue;
748 global_listener_queue_task->expire = TICK_ETERNITY;
749
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200750 /* now we know the buffer size, we can initialize the channels and buffers */
751 init_channel();
Willy Tarreau9b28e032012-10-12 23:49:43 +0200752 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +0200753
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200754 if (have_appsession)
755 appsession_init();
756
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200757 if (start_checks() < 0)
758 exit(1);
759
Willy Tarreaubaaee002006-06-26 02:48:02 +0200760 if (cfg_maxconn > 0)
761 global.maxconn = cfg_maxconn;
762
763 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200764 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200765 global.pidfile = strdup(cfg_pidfile);
766 }
767
768 if (global.maxconn == 0)
769 global.maxconn = DEFAULT_MAXCONN;
770
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100771 if (!global.maxpipes) {
772 /* maxpipes not specified. Count how many frontends and backends
773 * may be using splicing, and bound that to maxconn.
774 */
775 struct proxy *cur;
776 int nbfe = 0, nbbe = 0;
777
778 for (cur = proxy; cur; cur = cur->next) {
779 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
780 if (cur->cap & PR_CAP_FE)
781 nbfe += cur->maxconn;
782 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +0100783 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100784 }
785 }
786 global.maxpipes = MAX(nbfe, nbbe);
787 if (global.maxpipes > global.maxconn)
788 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +0100789 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100790 }
791
792
Willy Tarreauabacc2c2011-09-07 14:26:33 +0200793 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200794 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +0100795 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200796
Willy Tarreau3c63fd82011-09-07 18:00:47 +0200797 if (global.stats_fe)
798 global.maxsock += global.stats_fe->maxconn;
799
800 if (peers) {
801 /* peers also need to bypass global maxconn */
802 struct peers *p = peers;
803
804 for (p = peers; p; p = p->next)
805 if (p->peers_fe)
806 global.maxsock += p->peers_fe->maxconn;
807 }
808
Willy Tarreau1db37712007-06-03 17:16:49 +0200809 if (global.tune.maxpollevents <= 0)
810 global.tune.maxpollevents = MAX_POLL_EVENTS;
811
Willy Tarreau6f4a82c2009-03-21 20:43:57 +0100812 if (global.tune.recv_enough == 0)
813 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
814
Willy Tarreau27a674e2009-08-17 07:23:33 +0200815 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
816 global.tune.maxrewrite = global.tune.bufsize / 2;
817
Willy Tarreaubaaee002006-06-26 02:48:02 +0200818 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
819 /* command line debug mode inhibits configuration mode */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100820 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200821 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
822 }
823
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100824 if (arg_mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200825 /* command line daemon mode inhibits foreground and debug modes mode */
826 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100827 global.mode |= (arg_mode & (MODE_DAEMON | MODE_SYSTEMD));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200828 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200829
830 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200831
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100832 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET))) {
833 Warning("<debug> mode incompatible with <quiet>, <daemon> and <systemd>. Keeping <debug> only.\n");
834 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200835 }
836
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100837 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_SYSTEMD))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200838 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
839 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
840 global.nbproc = 1;
841 }
842
843 if (global.nbproc < 1)
844 global.nbproc = 1;
845
Willy Tarreau8096de92010-02-26 11:12:27 +0100846 swap_buffer = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau7e2c6472012-10-29 20:44:36 +0100847 get_http_auth_buff = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau07115412012-10-29 21:56:59 +0100848 static_table_key = calloc(1, sizeof(*static_table_key) + global.tune.bufsize);
Willy Tarreau8096de92010-02-26 11:12:27 +0100849
Willy Tarreau8d5d77e2009-10-18 07:25:52 +0200850 fdinfo = (struct fdinfo *)calloc(1,
851 sizeof(struct fdinfo) * (global.maxsock));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200852 fdtab = (struct fdtab *)calloc(1,
853 sizeof(struct fdtab) * (global.maxsock));
Willy Tarreauef1d1f82007-04-16 00:25:25 +0200854 /*
855 * Note: we could register external pollers here.
856 * Built-in pollers have been registered before main().
857 */
Willy Tarreau4f60f162007-04-08 16:39:58 +0200858
Willy Tarreau43b78992009-01-25 15:42:27 +0100859 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200860 disable_poller("kqueue");
861
Willy Tarreau43b78992009-01-25 15:42:27 +0100862 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200863 disable_poller("epoll");
864
Willy Tarreau43b78992009-01-25 15:42:27 +0100865 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200866 disable_poller("poll");
867
Willy Tarreau43b78992009-01-25 15:42:27 +0100868 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200869 disable_poller("select");
870
871 /* Note: we could disable any poller by name here */
872
Willy Tarreau2ff76222007-04-09 19:29:56 +0200873 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
874 list_pollers(stderr);
875
Willy Tarreau4f60f162007-04-08 16:39:58 +0200876 if (!init_pollers()) {
Willy Tarreau3fa87b12013-03-31 14:41:15 +0200877 Alert("No polling mechanism available.\n"
878 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
879 " is too low on this platform to support maxconn and the number of listeners\n"
880 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
881 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
Prach Pongpanichb837e682013-05-14 20:56:28 +0200882 " global maxconn setting to accommodate the system's limitation. For reference,\n"
Willy Tarreau3fa87b12013-03-31 14:41:15 +0200883 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
884 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
885 " check build settings using 'haproxy -vv'.\n\n",
886 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200887 exit(1);
888 }
Willy Tarreau2ff76222007-04-09 19:29:56 +0200889 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
890 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200891 }
892
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +0200893 if (!global.node)
894 global.node = strdup(hostname);
895
Willy Tarreaubaaee002006-06-26 02:48:02 +0200896}
897
Simon Horman6fb82592011-07-15 13:14:11 +0900898static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +0900899{
Simon Hormanac821422011-07-15 13:14:09 +0900900 struct acl_term_suite *suite, *suiteb;
901 struct acl_term *term, *termb;
902
Simon Horman6fb82592011-07-15 13:14:11 +0900903 if (!cond)
904 return;
905
906 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
907 list_for_each_entry_safe(term, termb, &suite->terms, list) {
908 LIST_DEL(&term->list);
909 free(term);
Simon Hormanac821422011-07-15 13:14:09 +0900910 }
Simon Horman6fb82592011-07-15 13:14:11 +0900911 LIST_DEL(&suite->list);
912 free(suite);
913 }
914
915 free(cond);
916}
917
918static void deinit_tcp_rules(struct list *rules)
919{
920 struct tcp_rule *trule, *truleb;
921
922 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +0900923 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +0900924 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +0900925 free(trule);
926 }
927}
928
Willy Tarreau12785782012-04-27 21:37:17 +0200929static void deinit_sample_arg(struct arg *p)
Simon Horman6fb82592011-07-15 13:14:11 +0900930{
Willy Tarreauf9954102012-04-20 14:03:29 +0200931 struct arg *p_back = p;
932
Simon Horman6fb82592011-07-15 13:14:11 +0900933 if (!p)
934 return;
935
Willy Tarreauf9954102012-04-20 14:03:29 +0200936 while (p->type != ARGT_STOP) {
Willy Tarreau496aa012012-06-01 10:38:29 +0200937 if (p->type == ARGT_STR || p->unresolved) {
Willy Tarreauf9954102012-04-20 14:03:29 +0200938 free(p->data.str.str);
939 p->data.str.str = NULL;
Willy Tarreau496aa012012-06-01 10:38:29 +0200940 p->unresolved = 0;
Willy Tarreauecfb8e82012-04-20 12:29:52 +0200941 }
Willy Tarreauf9954102012-04-20 14:03:29 +0200942 p++;
Willy Tarreauecfb8e82012-04-20 12:29:52 +0200943 }
Simon Horman6fb82592011-07-15 13:14:11 +0900944
Willy Tarreau2e845be2012-10-19 19:49:09 +0200945 if (p_back != empty_arg_list)
946 free(p_back);
Simon Horman6fb82592011-07-15 13:14:11 +0900947}
948
949static void deinit_stick_rules(struct list *rules)
950{
951 struct sticking_rule *rule, *ruleb;
952
953 list_for_each_entry_safe(rule, ruleb, rules, list) {
954 LIST_DEL(&rule->list);
955 deinit_acl_cond(rule->cond);
956 if (rule->expr) {
Willy Tarreau12785782012-04-27 21:37:17 +0200957 struct sample_conv_expr *conv_expr, *conv_exprb;
Simon Horman6fb82592011-07-15 13:14:11 +0900958 list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list)
Willy Tarreau12785782012-04-27 21:37:17 +0200959 deinit_sample_arg(conv_expr->arg_p);
960 deinit_sample_arg(rule->expr->arg_p);
Simon Horman6fb82592011-07-15 13:14:11 +0900961 free(rule->expr);
962 }
963 free(rule);
964 }
965}
966
Willy Tarreaubaaee002006-06-26 02:48:02 +0200967void deinit(void)
968{
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200969 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200970 struct cap_hdr *h,*h_next;
971 struct server *s,*s_next;
972 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200973 struct acl_cond *cond, *condb;
974 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200975 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200976 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +0200977 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200978 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100979 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100980 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200981 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +0200982 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +0100983 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +0200984 struct bind_conf *bind_conf, *bind_back;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200985 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200986
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200987 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200988 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +0200989 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +0200990 free(p->id);
991 free(p->check_req);
992 free(p->cookie_name);
993 free(p->cookie_domain);
994 free(p->url_param_name);
995 free(p->capture_name);
996 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +0900997 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +0200998 if (p->conf.logformat_string != default_http_log_format &&
999 p->conf.logformat_string != default_tcp_log_format &&
1000 p->conf.logformat_string != clf_http_log_format)
1001 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02001002
Willy Tarreau62a61232013-04-12 18:13:46 +02001003 free(p->conf.lfs_file);
1004 free(p->conf.uniqueid_format_string);
1005 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08001006 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001007
Willy Tarreaua534fea2008-08-03 12:19:50 +02001008 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02001009 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001010
Willy Tarreauf4f04122010-01-28 18:10:50 +01001011 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
1012 LIST_DEL(&cwl->list);
1013 free(cwl->s);
1014 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001015 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001016
Willy Tarreauf4f04122010-01-28 18:10:50 +01001017 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
1018 LIST_DEL(&cwl->list);
1019 free(cwl->s);
1020 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001021 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001022
Willy Tarreaub80c2302007-11-30 20:51:32 +01001023 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
1024 LIST_DEL(&cond->list);
1025 prune_acl_cond(cond);
1026 free(cond);
1027 }
1028
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001029 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001030 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001031 regex_free(exp->preg);
1032 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001033 }
1034
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001035 if (exp->replace && exp->action != ACT_SETBE)
1036 free((char *)exp->replace);
1037 expb = exp;
1038 exp = exp->next;
1039 free(expb);
1040 }
1041
1042 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001043 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001044 regex_free(exp->preg);
1045 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001046 }
1047
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001048 if (exp->replace && exp->action != ACT_SETBE)
1049 free((char *)exp->replace);
1050 expb = exp;
1051 exp = exp->next;
1052 free(expb);
1053 }
1054
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001055 /* build a list of unique uri_auths */
1056 if (!ua)
1057 ua = p->uri_auth;
1058 else {
1059 /* check if p->uri_auth is unique */
1060 for (uap = ua; uap; uap=uap->next)
1061 if (uap == p->uri_auth)
1062 break;
1063
Willy Tarreauaccc4e12008-06-24 11:14:45 +02001064 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001065 /* add it, if it is */
1066 p->uri_auth->next = ua;
1067 ua = p->uri_auth;
1068 }
1069 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001070
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001071 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
1072 LIST_DEL(&acl->list);
1073 prune_acl(acl);
1074 free(acl);
1075 }
1076
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001077 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
1078 LIST_DEL(&srule->list);
1079 prune_acl_cond(srule->cond);
1080 free(srule->cond);
1081 free(srule);
1082 }
1083
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001084 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
1085 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001086 if (rule->cond) {
1087 prune_acl_cond(rule->cond);
1088 free(rule->cond);
1089 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001090 free(rule);
1091 }
1092
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001093 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
1094 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01001095 if (rdr->cond) {
1096 prune_acl_cond(rdr->cond);
1097 free(rdr->cond);
1098 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001099 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01001100 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
1101 LIST_DEL(&lf->list);
1102 free(lf);
1103 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001104 free(rdr);
1105 }
1106
William Lallemand0f99e342011-10-12 17:50:54 +02001107 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
1108 LIST_DEL(&log->list);
1109 free(log);
1110 }
1111
William Lallemand723b73a2012-02-08 16:37:49 +01001112 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
1113 LIST_DEL(&lf->list);
1114 free(lf);
1115 }
1116
Simon Hormanac821422011-07-15 13:14:09 +09001117 deinit_tcp_rules(&p->tcp_req.inspect_rules);
1118 deinit_tcp_rules(&p->tcp_req.l4_rules);
1119
Simon Horman6fb82592011-07-15 13:14:11 +09001120 deinit_stick_rules(&p->storersp_rules);
1121 deinit_stick_rules(&p->sticking_rules);
1122
Willy Tarreaua534fea2008-08-03 12:19:50 +02001123 free(p->appsession_name);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001124
1125 h = p->req_cap;
1126 while (h) {
1127 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001128 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001129 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001130 free(h);
1131 h = h_next;
1132 }/* end while(h) */
1133
1134 h = p->rsp_cap;
1135 while (h) {
1136 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001137 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001138 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001139 free(h);
1140 h = h_next;
1141 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001142
Willy Tarreaubaaee002006-06-26 02:48:02 +02001143 s = p->srv;
1144 while (s) {
1145 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001146
Willy Tarreau5b3a2022012-09-28 15:01:02 +02001147 if (s->check.task) {
1148 task_delete(s->check.task);
1149 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001150 }
Simon Hormand60d6912013-11-25 10:46:36 +09001151 if (s->agent.task) {
1152 task_delete(s->agent.task);
1153 task_free(s->agent.task);
1154 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001155
Willy Tarreau2e993902011-10-31 11:53:20 +01001156 if (s->warmup) {
1157 task_delete(s->warmup);
1158 task_free(s->warmup);
1159 }
1160
Willy Tarreaua534fea2008-08-03 12:19:50 +02001161 free(s->id);
1162 free(s->cookie);
Willy Tarreau1ae1b7b2012-09-28 15:28:30 +02001163 free(s->check.bi);
1164 free(s->check.bo);
Simon Hormand60d6912013-11-25 10:46:36 +09001165 free(s->agent.bi);
1166 free(s->agent.bo);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001167 free(s);
1168 s = s_next;
1169 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001170
Willy Tarreau4348fad2012-09-20 16:48:07 +02001171 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02001172 unbind_listener(l);
1173 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001174 LIST_DEL(&l->by_fe);
1175 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001176 free(l->name);
1177 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001178 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001179 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001180
Willy Tarreau4348fad2012-09-20 16:48:07 +02001181 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001182 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
1183#ifdef USE_OPENSSL
1184 ssl_sock_free_all_ctx(bind_conf);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001185 free(bind_conf->ca_file);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001186 free(bind_conf->ciphers);
Emeric Brun2b58d042012-09-20 17:10:03 +02001187 free(bind_conf->ecdhe);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001188 free(bind_conf->crl_file);
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001189#endif /* USE_OPENSSL */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001190 free(bind_conf->file);
1191 free(bind_conf->arg);
1192 LIST_DEL(&bind_conf->by_fe);
1193 free(bind_conf);
1194 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001195
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001196 free(p->desc);
1197 free(p->fwdfor_hdr_name);
1198
Willy Tarreauff011f22011-01-06 17:51:27 +01001199 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06001200 free_http_res_rules(&p->http_res_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02001201 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01001202
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001203 pool_destroy2(p->req_cap_pool);
1204 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09001205 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001206
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001207 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001208 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001209 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001210 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02001211
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001212 while (ua) {
1213 uap = ua;
1214 ua = ua->next;
1215
Willy Tarreaua534fea2008-08-03 12:19:50 +02001216 free(uap->uri_prefix);
1217 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001218 free(uap->node);
1219 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001220
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001221 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001222 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001223
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001224 free(uap);
1225 }
1226
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001227 userlist_free(userlist);
1228
Willy Tarreaudd815982007-10-16 12:25:14 +02001229 protocol_unbind_all();
1230
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001231 free(global.log_send_hostname); global.log_send_hostname = NULL;
Kevinm48936af2010-12-22 16:08:21 +00001232 free(global.log_tag); global.log_tag = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001233 free(global.chroot); global.chroot = NULL;
1234 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001235 free(global.node); global.node = NULL;
1236 free(global.desc); global.desc = NULL;
Godbach4cc1b0d2013-06-26 16:49:51 +08001237 free(fdinfo); fdinfo = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001238 free(fdtab); fdtab = NULL;
1239 free(oldpids); oldpids = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001240 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001241
William Lallemand0f99e342011-10-12 17:50:54 +02001242 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1243 LIST_DEL(&log->list);
1244 free(log);
1245 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001246 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1247 LIST_DEL(&wl->list);
1248 free(wl);
1249 }
1250
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001251 pool_destroy2(pool2_session);
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001252 pool_destroy2(pool2_connection);
Willy Tarreau9b28e032012-10-12 23:49:43 +02001253 pool_destroy2(pool2_buffer);
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001254 pool_destroy2(pool2_channel);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001255 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001256 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001257 pool_destroy2(pool2_capture);
Willy Tarreau63963c62007-05-13 21:29:55 +02001258 pool_destroy2(pool2_appsess);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001259 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001260 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001261 pool_destroy2(pool2_hdr_idx);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001262
1263 if (have_appsession) {
Willy Tarreau63963c62007-05-13 21:29:55 +02001264 pool_destroy2(apools.serverid);
1265 pool_destroy2(apools.sessid);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001266 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001267
1268 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001269} /* end deinit() */
1270
Willy Tarreaubb545b42010-08-25 12:58:59 +02001271/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1272 * pids the signal was correctly delivered to.
1273 */
1274static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001275{
1276 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001277 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001278 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001279 if (kill(oldpids[p], sig) == 0)
1280 ret++;
1281 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001282}
1283
Willy Tarreau918ff602011-07-25 16:33:49 +02001284/* Runs the polling loop */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001285void run_poll_loop()
1286{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001287 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001288
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001289 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001290 while (1) {
Willy Tarreau29857942009-05-10 09:01:21 +02001291 /* check if we caught some signals and process them */
1292 signal_process_queue();
1293
Willy Tarreau58b458d2008-06-29 22:40:23 +02001294 /* Check if we can expire some tasks */
1295 wake_expired_tasks(&next);
1296
1297 /* Process a few tasks */
Willy Tarreaud825eef2007-05-12 22:35:00 +02001298 process_runnable_tasks(&next);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001299
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001300 /* stop when there's nothing left to do */
1301 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001302 break;
1303
Willy Tarreau58b458d2008-06-29 22:40:23 +02001304 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001305 cur_poller.poll(&cur_poller, next);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01001306 fd_process_cached_events();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001307 }
1308}
1309
Willy Tarreaue9b26022011-08-01 20:57:55 +02001310/* This is the global management task for listeners. It enables listeners waiting
1311 * for global resources when there are enough free resource, or at least once in
1312 * a while. It is designed to be called as a task.
1313 */
1314static struct task *manage_global_listener_queue(struct task *t)
1315{
1316 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001317 /* queue is empty, nothing to do */
1318 if (LIST_ISEMPTY(&global_listener_queue))
1319 goto out;
1320
1321 /* If there are still too many concurrent connections, let's wait for
1322 * some of them to go away. We don't need to re-arm the timer because
1323 * each of them will scan the queue anyway.
1324 */
1325 if (unlikely(actconn >= global.maxconn))
1326 goto out;
1327
1328 /* We should periodically try to enable listeners waiting for a global
1329 * resource here, because it is possible, though very unlikely, that
1330 * they have been blocked by a temporary lack of global resource such
1331 * as a file descriptor or memory and that the temporary condition has
1332 * disappeared.
1333 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001334 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001335
1336 out:
1337 t->expire = next;
1338 task_queue(t);
1339 return t;
1340}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001341
Willy Tarreaubaaee002006-06-26 02:48:02 +02001342int main(int argc, char **argv)
1343{
1344 int err, retry;
1345 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001346 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02001347 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001348
Emeric Bruncf20bf12010-10-22 16:06:11 +02001349 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001350 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1351 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1352 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001353
Willy Tarreaue437c442010-03-17 18:02:46 +01001354 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1355 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1356 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001357 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001358 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001359
Willy Tarreaudc23a922011-02-16 11:10:36 +01001360 /* ulimits */
1361 if (!global.rlimit_nofile)
1362 global.rlimit_nofile = global.maxsock;
1363
1364 if (global.rlimit_nofile) {
1365 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1366 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
1367 Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile);
1368 }
1369 }
1370
1371 if (global.rlimit_memmax) {
1372 limit.rlim_cur = limit.rlim_max =
Willy Tarreaue17eb812015-10-29 10:42:55 +01001373 global.rlimit_memmax * 1048576ULL / global.nbproc;
Willy Tarreaudc23a922011-02-16 11:10:36 +01001374#ifdef RLIMIT_AS
1375 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1376 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1377 argv[0], global.rlimit_memmax);
1378 }
1379#else
1380 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1381 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1382 argv[0], global.rlimit_memmax);
1383 }
1384#endif
1385 }
1386
Willy Tarreaubaaee002006-06-26 02:48:02 +02001387 /* We will loop at most 100 times with 10 ms delay each time.
1388 * That's at most 1 second. We only send a signal to old pids
1389 * if we cannot grab at least one port.
1390 */
1391 retry = MAX_START_RETRIES;
1392 err = ERR_NONE;
1393 while (retry >= 0) {
1394 struct timeval w;
1395 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001396 /* exit the loop on no error or fatal error */
1397 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001398 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001399 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001400 break;
1401
1402 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1403 * listening sockets. So on those platforms, it would be wiser to
1404 * simply send SIGUSR1, which will not be undoable.
1405 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001406 if (tell_old_pids(SIGTTOU) == 0) {
1407 /* no need to wait if we can't contact old pids */
1408 retry = 0;
1409 continue;
1410 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001411 /* give some time to old processes to stop listening */
1412 w.tv_sec = 0;
1413 w.tv_usec = 10*1000;
1414 select(0, NULL, NULL, NULL, &w);
1415 retry--;
1416 }
1417
1418 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001419 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001420 if (retry != MAX_START_RETRIES && nb_oldpids) {
1421 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001422 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001423 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001424 exit(1);
1425 }
1426
1427 if (listeners == 0) {
1428 Alert("[%s.main()] No enabled listener found (check the <listen> keywords) ! Exiting.\n", argv[0]);
1429 /* Note: we don't have to send anything to the old pids because we
1430 * never stopped them. */
1431 exit(1);
1432 }
1433
Emeric Bruncf20bf12010-10-22 16:06:11 +02001434 err = protocol_bind_all(errmsg, sizeof(errmsg));
1435 if ((err & ~ERR_WARN) != ERR_NONE) {
1436 if ((err & ERR_ALERT) || (err & ERR_WARN))
1437 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1438
Willy Tarreaudd815982007-10-16 12:25:14 +02001439 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1440 protocol_unbind_all(); /* cleanup everything we can */
1441 if (nb_oldpids)
1442 tell_old_pids(SIGTTIN);
1443 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001444 } else if (err & ERR_WARN) {
1445 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001446 }
1447
Willy Tarreaubaaee002006-06-26 02:48:02 +02001448 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001449 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1450 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001451
Willy Tarreaubaaee002006-06-26 02:48:02 +02001452 /* MODE_QUIET can inhibit alerts and warnings below this line */
1453
1454 global.mode &= ~MODE_STARTING;
1455 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1456 /* detach from the tty */
1457 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001458 }
1459
1460 /* open log & pid files before the chroot */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001461 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001462 unlink(global.pidfile);
1463 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1464 if (pidfd < 0) {
1465 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1466 if (nb_oldpids)
1467 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001468 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001469 exit(1);
1470 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001471 }
1472
Willy Tarreaub38651a2007-03-24 17:24:39 +01001473#ifdef CONFIG_HAP_CTTPROXY
1474 if (global.last_checks & LSTCHK_CTTPROXY) {
1475 int ret;
1476
1477 ret = check_cttproxy_version();
1478 if (ret < 0) {
1479 Alert("[%s.main()] Cannot enable cttproxy.\n%s",
1480 argv[0],
1481 (ret == -1) ? " Incorrect module version.\n"
1482 : " Make sure you have enough permissions and that the module is loaded.\n");
Willy Tarreaudd815982007-10-16 12:25:14 +02001483 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001484 exit(1);
1485 }
1486 }
1487#endif
1488
1489 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1490 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001491 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001492 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001493 exit(1);
1494 }
1495
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001496 /* If the user is not root, we'll still let him try the configuration
1497 * but we inform him that unexpected behaviour may occur.
1498 */
1499 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1500 Warning("[%s.main()] Some options which require full privileges"
1501 " might not work well.\n"
1502 "", argv[0]);
1503
Willy Tarreauf223cc02007-10-15 18:57:08 +02001504 /* chroot if needed */
1505 if (global.chroot != NULL) {
Willy Tarreau21337822012-04-29 14:11:38 +02001506 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Willy Tarreauf223cc02007-10-15 18:57:08 +02001507 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1508 if (nb_oldpids)
1509 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001510 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001511 exit(1);
1512 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02001513 }
1514
Willy Tarreaubaaee002006-06-26 02:48:02 +02001515 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001516 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001517
1518 /* Note that any error at this stage will be fatal because we will not
1519 * be able to restart the old pids.
1520 */
1521
1522 /* setgid / setuid */
Michael Schererab012dd2013-01-12 18:35:19 +01001523 if (global.gid) {
1524 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
1525 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
1526 " without 'uid'/'user' is generally useless.\n", argv[0]);
1527
1528 if (setgid(global.gid) == -1) {
1529 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
1530 protocol_unbind_all();
1531 exit(1);
1532 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001533 }
1534
1535 if (global.uid && setuid(global.uid) == -1) {
1536 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001537 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001538 exit(1);
1539 }
1540
1541 /* check ulimits */
1542 limit.rlim_cur = limit.rlim_max = 0;
1543 getrlimit(RLIMIT_NOFILE, &limit);
1544 if (limit.rlim_cur < global.maxsock) {
1545 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 +02001546 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001547 }
1548
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001549 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001550 struct proxy *px;
Willy Tarreau07d4e6d2015-05-01 19:13:41 +02001551 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001552 int ret = 0;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001553 int *children = calloc(global.nbproc, sizeof(int));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001554 int proc;
1555
1556 /* the father launches the required number of processes */
1557 for (proc = 0; proc < global.nbproc; proc++) {
1558 ret = fork();
1559 if (ret < 0) {
1560 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001561 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001562 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001563 }
1564 else if (ret == 0) /* child breaks here */
1565 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001566 children[proc] = ret;
Willy Tarreau269ab312012-09-05 08:02:48 +02001567 if (pidfd >= 0) {
1568 char pidstr[100];
1569 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01001570 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001571 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001572 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001573 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001574
1575#ifdef USE_CPU_AFFINITY
1576 if (proc < global.nbproc && /* child */
Willy Tarreaub34c00c2015-04-20 11:36:57 +02001577 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001578 global.cpu_map[proc]) /* only do this if the process has a CPU map */
1579 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1580#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001581 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02001582 if (pidfd >= 0) {
1583 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
1584 close(pidfd);
1585 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02001586
1587 /* We won't ever use this anymore */
1588 free(oldpids); oldpids = NULL;
1589 free(global.chroot); global.chroot = NULL;
1590 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001591
Willy Tarreau4ed1ae72015-05-01 17:01:08 +02001592 if (proc == global.nbproc) {
1593 if (global.mode & MODE_SYSTEMD) {
1594 protocol_unbind_all();
1595 for (proc = 0; proc < global.nbproc; proc++)
1596 while (waitpid(children[proc], NULL, 0) == -1 && errno == EINTR);
1597 }
1598 exit(0); /* parent must leave */
1599 }
1600
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001601 /* we might have to unbind some proxies from some processes */
1602 px = proxy;
1603 while (px != NULL) {
1604 if (px->bind_proc && px->state != PR_STSTOPPED) {
Willy Tarreaua9db57e2013-01-18 11:29:29 +01001605 if (!(px->bind_proc & (1UL << proc)))
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001606 stop_proxy(px);
1607 }
1608 px = px->next;
1609 }
1610
Willy Tarreau07d4e6d2015-05-01 19:13:41 +02001611 /* we might have to unbind some peers sections from some processes */
1612 for (curpeers = peers; curpeers; curpeers = curpeers->next) {
1613 if (!curpeers->peers_fe)
1614 continue;
1615
1616 if (curpeers->peers_fe->bind_proc & (1UL << proc))
1617 continue;
1618
1619 stop_proxy(curpeers->peers_fe);
1620 /* disable this peer section so that it kills itself */
1621 curpeers->peers_fe = NULL;
1622 }
1623
Dirkjan Bussink07fcaaa2014-04-28 22:57:16 +00001624 free(children);
1625 children = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001626 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
1627 * that we can detach from the TTY. We MUST NOT do it in other cases since
1628 * it would have already be done, and 0-2 would have been affected to listening
1629 * sockets
1630 */
Willy Tarreau106cb762008-11-16 07:40:34 +01001631 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001632 /* detach from the tty */
1633 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01001634 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001635 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
1636 }
1637 pid = getpid(); /* update child's pid */
1638 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02001639 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001640 }
1641
Willy Tarreaudd815982007-10-16 12:25:14 +02001642 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001643 /*
1644 * That's it : the central polling loop. Run until we stop.
1645 */
1646 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001647
1648 /* Free all Hash Keys and all Hash elements */
1649 appsession_cleanup();
1650 /* Do some cleanup */
1651 deinit();
1652
1653 exit(0);
1654}
1655
1656
1657/*
1658 * Local variables:
1659 * c-indent-level: 8
1660 * c-basic-offset: 8
1661 * End:
1662 */