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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 Tarreau1a34d572014-02-03 00:41:29 +0100219 printf("Copyright 2000-2014 Willy Tarreau <w@1wt.eu>\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
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200272 printf("Built with OpenSSL version : "
273#ifdef OPENSSL_IS_BORINGSSL
274 "BoringSSL\n");
275#else /* OPENSSL_IS_BORINGSSL */
276 OPENSSL_VERSION_TEXT "\n");
Willy Tarreau0cff0db2013-04-26 18:16:13 +0200277 printf("Running on OpenSSL version : %s%s\n",
278 SSLeay_version(SSLEAY_VERSION),
279 ((OPENSSL_VERSION_NUMBER ^ SSLeay()) >> 8) ? " (VERSIONS DIFFER!)" : "");
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200280#endif
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200281 printf("OpenSSL library supports TLS extensions : "
282#if OPENSSL_VERSION_NUMBER < 0x00907000L
283 "no (library version too old)"
284#elif defined(OPENSSL_NO_TLSEXT)
285 "no (disabled via OPENSSL_NO_TLSEXT)"
286#else
287 "yes"
288#endif
289 "\n");
290 printf("OpenSSL library supports SNI : "
291#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
292 "yes"
293#else
294#ifdef OPENSSL_NO_TLSEXT
295 "no (because of OPENSSL_NO_TLSEXT)"
296#else
297 "no (version might be too old, 0.9.8f min needed)"
298#endif
299#endif
300 "\n");
301 printf("OpenSSL library supports prefer-server-ciphers : "
302#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
303 "yes"
304#else
305 "no (0.9.7 or later needed)"
306#endif
307 "\n");
308#else /* USE_OPENSSL */
309 printf("Built without OpenSSL support (USE_OPENSSL not set)\n");
310#endif
Lukas Tribusea68d362013-04-04 12:24:16 +0200311
312#ifdef USE_PCRE
313 printf("Built with PCRE version : %s", pcre_version());
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200314 printf("\nPCRE library supports JIT : ");
315#ifdef USE_PCRE_JIT
316 {
317 int r;
318 pcre_config(PCRE_CONFIG_JIT, &r);
319 if (r)
320 printf("yes");
321 else
322 printf("no (libpcre build without JIT?)");
323 }
Lukas Tribusea68d362013-04-04 12:24:16 +0200324#else
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200325 printf("no (USE_PCRE_JIT not set)");
Lukas Tribusea68d362013-04-04 12:24:16 +0200326#endif
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200327 printf("\n");
Lukas Tribusea68d362013-04-04 12:24:16 +0200328#else
329 printf("Built without PCRE support (using libc's regex instead)\n");
330#endif
331
Pieter Baauwd551fb52013-05-08 22:49:23 +0200332#if defined(CONFIG_HAP_TRANSPARENT) || defined(CONFIG_HAP_CTTPROXY)
333 printf("Built with transparent proxy support using:"
334#if defined(CONFIG_HAP_CTTPROXY)
335 " CTTPROXY"
336#endif
337#if defined(IP_TRANSPARENT)
338 " IP_TRANSPARENT"
339#endif
340#if defined(IPV6_TRANSPARENT)
341 " IPV6_TRANSPARENT"
342#endif
343#if defined(IP_FREEBIND)
344 " IP_FREEBIND"
345#endif
Pieter Baauwff30b662013-05-08 23:22:39 +0200346#if defined(IP_BINDANY)
347 " IP_BINDANY"
348#endif
349#if defined(IPV6_BINDANY)
350 " IPV6_BINDANY"
351#endif
Pieter Baauw1eb75922013-05-08 23:30:23 +0200352#if defined(SO_BINDANY)
353 " SO_BINDANY"
354#endif
Pieter Baauwd551fb52013-05-08 22:49:23 +0200355 "\n");
356#endif
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100357 putchar('\n');
358
Willy Tarreaube5b6852009-10-03 18:57:08 +0200359 list_pollers(stdout);
360 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100361}
362
Willy Tarreaubaaee002006-06-26 02:48:02 +0200363/*
364 * This function prints the command line usage and exits
365 */
366void usage(char *name)
367{
368 display_version();
369 fprintf(stderr,
Willy Tarreau5d01a632009-06-22 16:02:30 +0200370 "Usage : %s [-f <cfgfile>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200371 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200372 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100373 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200374 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200375 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200376 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200377 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200378 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200379 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200380 " -n sets the maximum total # of connections (%d)\n"
381 " -m limits the usable amount of memory (in MB)\n"
382 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200383 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200384 " -p writes pids of all children to this file\n"
385#if defined(ENABLE_EPOLL)
386 " -de disables epoll() usage even when available\n"
387#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200388#if defined(ENABLE_KQUEUE)
389 " -dk disables kqueue() usage even when available\n"
390#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200391#if defined(ENABLE_POLL)
392 " -dp disables poll() usage even when available\n"
393#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200394#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100395 " -dS disables splice usage (broken on old kernels)\n"
396#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200397#if defined(USE_GETADDRINFO)
398 " -dG disables getaddrinfo() usage\n"
399#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100400 " -dV disables SSL verify on servers side\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200401 " -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.\n"
402 "\n",
403 name, DEFAULT_MAXCONN, cfg_maxpconn);
404 exit(1);
405}
406
407
408
409/*********************************************************************/
410/* more specific functions ***************************************/
411/*********************************************************************/
412
413/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200414 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
415 * a signal zero to all subscribers. This means that it's as easy as
416 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200417 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200418void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200419{
420 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200421 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200422 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200423}
424
425/*
426 * upon SIGTTOU, we pause everything
427 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200428void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200429{
430 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200431 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200432}
433
434/*
435 * upon SIGTTIN, let's have a soft stop.
436 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200437void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200438{
Willy Tarreaube58c382011-07-24 18:28:10 +0200439 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200440}
441
442/*
443 * this function dumps every server's state when the process receives SIGHUP.
444 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200445void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200446{
447 struct proxy *p = proxy;
448
449 Warning("SIGHUP received, dumping servers states.\n");
450 while (p) {
451 struct server *s = p->srv;
452
453 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
454 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100455 chunk_printf(&trash,
456 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
457 p->id, s->id,
Willy Tarreau892337c2014-05-13 23:41:20 +0200458 (s->state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100459 s->cur_sess, s->nbpend, s->counters.cum_sess);
460 Warning("%s\n", trash.str);
461 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200462 s = s->next;
463 }
464
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200465 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
466 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100467 chunk_printf(&trash,
468 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
469 p->id,
470 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 +0200471 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100472 chunk_printf(&trash,
473 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
474 p->id,
475 (p->srv_bck) ? "is running on backup servers" : "has no server available",
476 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 +0200477 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100478 chunk_printf(&trash,
479 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
480 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
481 p->id, p->srv_act, p->srv_bck,
482 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 +0200483 }
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100484 Warning("%s\n", trash.str);
485 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200486
487 p = p->next;
488 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200489}
490
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200491void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200492{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200493 /* dump memory usage then free everything possible */
494 dump_pools();
495 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200496}
497
Willy Tarreaubaaee002006-06-26 02:48:02 +0200498/*
499 * This function initializes all the necessary variables. It only returns
500 * if everything is OK. If something fails, it exits.
501 */
502void init(int argc, char **argv)
503{
Willy Tarreaubaaee002006-06-26 02:48:02 +0200504 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200505 char *tmp;
506 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200507 int err_code = 0;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100508 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000509 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200510 char *change_dir = NULL;
Yuxans Yao4e25b012012-10-19 10:36:09 +0800511 struct tm curtime;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200512
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100513 chunk_init(&trash, malloc(global.tune.bufsize), global.tune.bufsize);
Willy Tarreau2819e992013-12-13 14:41:10 +0100514 alloc_trash_buffers(global.tune.bufsize);
David du Colombier7af46052012-05-16 14:16:48 +0200515
Emeric Brun2b920a12010-09-23 18:30:22 +0200516 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
517 * the string in case of truncation, and at least FreeBSD appears not to do
518 * it.
519 */
520 memset(hostname, 0, sizeof(hostname));
521 gethostname(hostname, sizeof(hostname) - 1);
522 memset(localpeer, 0, sizeof(localpeer));
523 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
524
Willy Tarreaubaaee002006-06-26 02:48:02 +0200525 /*
526 * Initialize the previously static variables.
527 */
528
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100529 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200530
531
532#ifdef HAPROXY_MEMMAX
533 global.rlimit_memmax = HAPROXY_MEMMAX;
534#endif
535
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200536 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200537 start_date = now;
538
Willy Tarreau84310e22014-02-14 11:59:04 +0100539 srandom(now_ms - getpid());
540
Yuxans Yao4e25b012012-10-19 10:36:09 +0800541 /* Get the numeric timezone. */
542 get_localtime(start_date.tv_sec, &curtime);
543 strftime(localtimezone, 6, "%z", &curtime);
544
Willy Tarreau29857942009-05-10 09:01:21 +0200545 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100546 if (init_acl() != 0)
547 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200548 init_task();
549 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200550 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +0200551 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200552 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100553 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200554
Willy Tarreau43b78992009-01-25 15:42:27 +0100555 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200556#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100557 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200558#endif
559#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100560 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200561#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200562#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100563 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200564#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200565#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100566 global.tune.options |= GTUNE_USE_SPLICE;
567#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200568#if defined(USE_GETADDRINFO)
569 global.tune.options |= GTUNE_USE_GAI;
570#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200571
572 pid = getpid();
573 progname = *argv;
574 while ((tmp = strchr(progname, '/')) != NULL)
575 progname = tmp + 1;
576
Kevinm48936af2010-12-22 16:08:21 +0000577 /* the process name is used for the logs only */
578 global.log_tag = strdup(progname);
579
Willy Tarreaubaaee002006-06-26 02:48:02 +0200580 argc--; argv++;
581 while (argc > 0) {
582 char *flag;
583
584 if (**argv == '-') {
585 flag = *argv+1;
586
587 /* 1 arg */
588 if (*flag == 'v') {
589 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100590 if (flag[1] == 'v') /* -vv */
591 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200592 exit(0);
593 }
594#if defined(ENABLE_EPOLL)
595 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100596 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200597#endif
598#if defined(ENABLE_POLL)
599 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100600 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200601#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200602#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200603 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100604 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200605#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200606#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100607 else if (*flag == 'd' && flag[1] == 'S')
608 global.tune.options &= ~GTUNE_USE_SPLICE;
609#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200610#if defined(USE_GETADDRINFO)
611 else if (*flag == 'd' && flag[1] == 'G')
612 global.tune.options &= ~GTUNE_USE_GAI;
613#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100614 else if (*flag == 'd' && flag[1] == 'V')
615 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200616 else if (*flag == 'V')
617 arg_mode |= MODE_VERBOSE;
618 else if (*flag == 'd' && flag[1] == 'b')
619 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +0200620 else if (*flag == 'd' && flag[1] == 'M')
621 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreaubaaee002006-06-26 02:48:02 +0200622 else if (*flag == 'd')
623 arg_mode |= MODE_DEBUG;
624 else if (*flag == 'c')
625 arg_mode |= MODE_CHECK;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100626 else if (*flag == 'D') {
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200627 arg_mode |= MODE_DAEMON;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100628 if (flag[1] == 's') /* -Ds */
629 arg_mode |= MODE_SYSTEMD;
630 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200631 else if (*flag == 'q')
632 arg_mode |= MODE_QUIET;
633 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
634 /* list of pids to finish ('f') or terminate ('t') */
635
636 if (flag[1] == 'f')
637 oldpids_sig = SIGUSR1; /* finish then exit */
638 else
639 oldpids_sig = SIGTERM; /* terminate immediately */
640 argv++; argc--;
641
642 if (argc > 0) {
643 oldpids = calloc(argc, sizeof(int));
644 while (argc > 0) {
645 oldpids[nb_oldpids] = atol(*argv);
646 if (oldpids[nb_oldpids] <= 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200647 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200648 argc--; argv++;
649 nb_oldpids++;
650 }
651 }
652 }
653 else { /* >=2 args */
654 argv++; argc--;
655 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200656 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200657
658 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200659 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200660 case 'n' : cfg_maxconn = atol(*argv); break;
661 case 'm' : global.rlimit_memmax = atol(*argv); break;
662 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200663 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200664 case 'f' :
Willy Tarreau477ecd82010-01-03 21:12:30 +0100665 wl = (struct wordlist *)calloc(1, sizeof(*wl));
666 if (!wl) {
667 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200668 exit(1);
669 }
Willy Tarreau477ecd82010-01-03 21:12:30 +0100670 wl->s = *argv;
671 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200672 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200673 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200674 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200675 }
676 }
677 }
678 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200679 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200680 argv++; argc--;
681 }
682
683 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100684 (arg_mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_FOREGROUND | MODE_VERBOSE
Willy Tarreaubaaee002006-06-26 02:48:02 +0200685 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
686
Willy Tarreau477ecd82010-01-03 21:12:30 +0100687 if (LIST_ISEMPTY(&cfg_cfgfiles))
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200688 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200689
Willy Tarreau576132e2011-09-10 19:26:56 +0200690 if (change_dir && chdir(change_dir) < 0) {
691 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
692 exit(1);
693 }
694
Willy Tarreaubaaee002006-06-26 02:48:02 +0200695 have_appsession = 0;
696 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200697
698 init_default_instance();
699
Willy Tarreau477ecd82010-01-03 21:12:30 +0100700 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100701 int ret;
702
Willy Tarreau477ecd82010-01-03 21:12:30 +0100703 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100704 if (ret == -1) {
705 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100706 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100707 exit(1);
708 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100709 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100710 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100711 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200712 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200713 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200714 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200715
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100716 pattern_finalize_config();
717
Willy Tarreaubb925012009-07-23 13:36:36 +0200718 err_code |= check_config_validity();
719 if (err_code & (ERR_ABORT|ERR_FATAL)) {
720 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200721 exit(1);
722 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200723
724 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100725 struct peers *pr;
726 struct proxy *px;
727
728 for (pr = peers; pr; pr = pr->next)
729 if (pr->peers_fe)
730 break;
731
732 for (px = proxy; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +0200733 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100734 break;
735
736 if (pr || px) {
737 /* At least one peer or one listener has been found */
738 qfprintf(stdout, "Configuration file is valid\n");
739 exit(0);
740 }
741 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
742 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200743 }
744
Willy Tarreaue9b26022011-08-01 20:57:55 +0200745 global_listener_queue_task = task_new();
746 if (!global_listener_queue_task) {
747 Alert("Out of memory when initializing global task\n");
748 exit(1);
749 }
750 /* very simple initialization, users will queue the task if needed */
751 global_listener_queue_task->context = NULL; /* not even a context! */
752 global_listener_queue_task->process = manage_global_listener_queue;
753 global_listener_queue_task->expire = TICK_ETERNITY;
754
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200755 /* now we know the buffer size, we can initialize the channels and buffers */
756 init_channel();
Willy Tarreau9b28e032012-10-12 23:49:43 +0200757 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +0200758
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200759 if (have_appsession)
760 appsession_init();
761
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200762 if (start_checks() < 0)
763 exit(1);
764
Willy Tarreaubaaee002006-06-26 02:48:02 +0200765 if (cfg_maxconn > 0)
766 global.maxconn = cfg_maxconn;
767
768 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200769 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200770 global.pidfile = strdup(cfg_pidfile);
771 }
772
773 if (global.maxconn == 0)
774 global.maxconn = DEFAULT_MAXCONN;
775
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100776 if (!global.maxpipes) {
777 /* maxpipes not specified. Count how many frontends and backends
778 * may be using splicing, and bound that to maxconn.
779 */
780 struct proxy *cur;
781 int nbfe = 0, nbbe = 0;
782
783 for (cur = proxy; cur; cur = cur->next) {
784 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
785 if (cur->cap & PR_CAP_FE)
786 nbfe += cur->maxconn;
787 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +0100788 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100789 }
790 }
791 global.maxpipes = MAX(nbfe, nbbe);
792 if (global.maxpipes > global.maxconn)
793 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +0100794 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100795 }
796
797
Willy Tarreauabacc2c2011-09-07 14:26:33 +0200798 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200799 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +0100800 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200801
Willy Tarreau3c63fd82011-09-07 18:00:47 +0200802 if (global.stats_fe)
803 global.maxsock += global.stats_fe->maxconn;
804
805 if (peers) {
806 /* peers also need to bypass global maxconn */
807 struct peers *p = peers;
808
809 for (p = peers; p; p = p->next)
810 if (p->peers_fe)
811 global.maxsock += p->peers_fe->maxconn;
812 }
813
Willy Tarreau1db37712007-06-03 17:16:49 +0200814 if (global.tune.maxpollevents <= 0)
815 global.tune.maxpollevents = MAX_POLL_EVENTS;
816
Willy Tarreau6f4a82c2009-03-21 20:43:57 +0100817 if (global.tune.recv_enough == 0)
818 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
819
Willy Tarreau27a674e2009-08-17 07:23:33 +0200820 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
821 global.tune.maxrewrite = global.tune.bufsize / 2;
822
Willy Tarreaubaaee002006-06-26 02:48:02 +0200823 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
824 /* command line debug mode inhibits configuration mode */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100825 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200826 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
827 }
828
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100829 if (arg_mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200830 /* command line daemon mode inhibits foreground and debug modes mode */
831 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100832 global.mode |= (arg_mode & (MODE_DAEMON | MODE_SYSTEMD));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200833 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200834
835 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200836
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100837 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET))) {
838 Warning("<debug> mode incompatible with <quiet>, <daemon> and <systemd>. Keeping <debug> only.\n");
839 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200840 }
841
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100842 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_SYSTEMD))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200843 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
844 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
845 global.nbproc = 1;
846 }
847
848 if (global.nbproc < 1)
849 global.nbproc = 1;
850
Willy Tarreau8096de92010-02-26 11:12:27 +0100851 swap_buffer = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau7e2c6472012-10-29 20:44:36 +0100852 get_http_auth_buff = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau07115412012-10-29 21:56:59 +0100853 static_table_key = calloc(1, sizeof(*static_table_key) + global.tune.bufsize);
Willy Tarreau8096de92010-02-26 11:12:27 +0100854
Willy Tarreau8d5d77e2009-10-18 07:25:52 +0200855 fdinfo = (struct fdinfo *)calloc(1,
856 sizeof(struct fdinfo) * (global.maxsock));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200857 fdtab = (struct fdtab *)calloc(1,
858 sizeof(struct fdtab) * (global.maxsock));
Willy Tarreauef1d1f82007-04-16 00:25:25 +0200859 /*
860 * Note: we could register external pollers here.
861 * Built-in pollers have been registered before main().
862 */
Willy Tarreau4f60f162007-04-08 16:39:58 +0200863
Willy Tarreau43b78992009-01-25 15:42:27 +0100864 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200865 disable_poller("kqueue");
866
Willy Tarreau43b78992009-01-25 15:42:27 +0100867 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200868 disable_poller("epoll");
869
Willy Tarreau43b78992009-01-25 15:42:27 +0100870 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200871 disable_poller("poll");
872
Willy Tarreau43b78992009-01-25 15:42:27 +0100873 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200874 disable_poller("select");
875
876 /* Note: we could disable any poller by name here */
877
Willy Tarreau2ff76222007-04-09 19:29:56 +0200878 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
879 list_pollers(stderr);
880
Willy Tarreau4f60f162007-04-08 16:39:58 +0200881 if (!init_pollers()) {
Willy Tarreau3fa87b12013-03-31 14:41:15 +0200882 Alert("No polling mechanism available.\n"
883 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
884 " is too low on this platform to support maxconn and the number of listeners\n"
885 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
886 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
Prach Pongpanichb837e682013-05-14 20:56:28 +0200887 " global maxconn setting to accommodate the system's limitation. For reference,\n"
Willy Tarreau3fa87b12013-03-31 14:41:15 +0200888 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
889 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
890 " check build settings using 'haproxy -vv'.\n\n",
891 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200892 exit(1);
893 }
Willy Tarreau2ff76222007-04-09 19:29:56 +0200894 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
895 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200896 }
897
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +0200898 if (!global.node)
899 global.node = strdup(hostname);
900
Willy Tarreaubaaee002006-06-26 02:48:02 +0200901}
902
Simon Horman6fb82592011-07-15 13:14:11 +0900903static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +0900904{
Simon Hormanac821422011-07-15 13:14:09 +0900905 struct acl_term_suite *suite, *suiteb;
906 struct acl_term *term, *termb;
907
Simon Horman6fb82592011-07-15 13:14:11 +0900908 if (!cond)
909 return;
910
911 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
912 list_for_each_entry_safe(term, termb, &suite->terms, list) {
913 LIST_DEL(&term->list);
914 free(term);
Simon Hormanac821422011-07-15 13:14:09 +0900915 }
Simon Horman6fb82592011-07-15 13:14:11 +0900916 LIST_DEL(&suite->list);
917 free(suite);
918 }
919
920 free(cond);
921}
922
923static void deinit_tcp_rules(struct list *rules)
924{
925 struct tcp_rule *trule, *truleb;
926
927 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +0900928 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +0900929 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +0900930 free(trule);
931 }
932}
933
Willy Tarreau12785782012-04-27 21:37:17 +0200934static void deinit_sample_arg(struct arg *p)
Simon Horman6fb82592011-07-15 13:14:11 +0900935{
Willy Tarreauf9954102012-04-20 14:03:29 +0200936 struct arg *p_back = p;
937
Simon Horman6fb82592011-07-15 13:14:11 +0900938 if (!p)
939 return;
940
Willy Tarreauf9954102012-04-20 14:03:29 +0200941 while (p->type != ARGT_STOP) {
Willy Tarreau496aa012012-06-01 10:38:29 +0200942 if (p->type == ARGT_STR || p->unresolved) {
Willy Tarreauf9954102012-04-20 14:03:29 +0200943 free(p->data.str.str);
944 p->data.str.str = NULL;
Willy Tarreau496aa012012-06-01 10:38:29 +0200945 p->unresolved = 0;
Willy Tarreauecfb8e82012-04-20 12:29:52 +0200946 }
Willy Tarreauf9954102012-04-20 14:03:29 +0200947 p++;
Willy Tarreauecfb8e82012-04-20 12:29:52 +0200948 }
Simon Horman6fb82592011-07-15 13:14:11 +0900949
Willy Tarreau2e845be2012-10-19 19:49:09 +0200950 if (p_back != empty_arg_list)
951 free(p_back);
Simon Horman6fb82592011-07-15 13:14:11 +0900952}
953
954static void deinit_stick_rules(struct list *rules)
955{
956 struct sticking_rule *rule, *ruleb;
957
958 list_for_each_entry_safe(rule, ruleb, rules, list) {
959 LIST_DEL(&rule->list);
960 deinit_acl_cond(rule->cond);
961 if (rule->expr) {
Willy Tarreau12785782012-04-27 21:37:17 +0200962 struct sample_conv_expr *conv_expr, *conv_exprb;
Simon Horman6fb82592011-07-15 13:14:11 +0900963 list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list)
Willy Tarreau12785782012-04-27 21:37:17 +0200964 deinit_sample_arg(conv_expr->arg_p);
965 deinit_sample_arg(rule->expr->arg_p);
Simon Horman6fb82592011-07-15 13:14:11 +0900966 free(rule->expr);
967 }
968 free(rule);
969 }
970}
971
Willy Tarreaubaaee002006-06-26 02:48:02 +0200972void deinit(void)
973{
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200974 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200975 struct cap_hdr *h,*h_next;
976 struct server *s,*s_next;
977 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200978 struct acl_cond *cond, *condb;
979 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200980 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200981 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +0200982 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200983 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100984 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100985 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200986 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +0200987 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +0100988 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +0200989 struct bind_conf *bind_conf, *bind_back;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200990 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200991
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200992 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200993 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +0200994 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +0200995 free(p->id);
996 free(p->check_req);
997 free(p->cookie_name);
998 free(p->cookie_domain);
999 free(p->url_param_name);
1000 free(p->capture_name);
1001 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09001002 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02001003 if (p->conf.logformat_string != default_http_log_format &&
1004 p->conf.logformat_string != default_tcp_log_format &&
1005 p->conf.logformat_string != clf_http_log_format)
1006 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02001007
Willy Tarreau62a61232013-04-12 18:13:46 +02001008 free(p->conf.lfs_file);
1009 free(p->conf.uniqueid_format_string);
1010 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08001011 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001012
Willy Tarreaua534fea2008-08-03 12:19:50 +02001013 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02001014 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001015
Willy Tarreauf4f04122010-01-28 18:10:50 +01001016 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
1017 LIST_DEL(&cwl->list);
1018 free(cwl->s);
1019 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001020 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001021
Willy Tarreauf4f04122010-01-28 18:10:50 +01001022 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
1023 LIST_DEL(&cwl->list);
1024 free(cwl->s);
1025 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001026 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001027
Willy Tarreau353bc9f2014-04-28 22:05:31 +02001028 list_for_each_entry_safe(cond, condb, &p->block_rules, list) {
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001029 LIST_DEL(&cond->list);
1030 prune_acl_cond(cond);
1031 free(cond);
1032 }
1033
Willy Tarreaub80c2302007-11-30 20:51:32 +01001034 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
1035 LIST_DEL(&cond->list);
1036 prune_acl_cond(cond);
1037 free(cond);
1038 }
1039
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001040 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001041 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001042 regex_free(exp->preg);
1043 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001044 }
1045
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001046 if (exp->replace && exp->action != ACT_SETBE)
1047 free((char *)exp->replace);
1048 expb = exp;
1049 exp = exp->next;
1050 free(expb);
1051 }
1052
1053 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001054 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001055 regex_free(exp->preg);
1056 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001057 }
1058
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001059 if (exp->replace && exp->action != ACT_SETBE)
1060 free((char *)exp->replace);
1061 expb = exp;
1062 exp = exp->next;
1063 free(expb);
1064 }
1065
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001066 /* build a list of unique uri_auths */
1067 if (!ua)
1068 ua = p->uri_auth;
1069 else {
1070 /* check if p->uri_auth is unique */
1071 for (uap = ua; uap; uap=uap->next)
1072 if (uap == p->uri_auth)
1073 break;
1074
Willy Tarreauaccc4e12008-06-24 11:14:45 +02001075 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001076 /* add it, if it is */
1077 p->uri_auth->next = ua;
1078 ua = p->uri_auth;
1079 }
1080 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001081
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001082 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
1083 LIST_DEL(&acl->list);
1084 prune_acl(acl);
1085 free(acl);
1086 }
1087
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001088 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
1089 LIST_DEL(&srule->list);
1090 prune_acl_cond(srule->cond);
1091 free(srule->cond);
1092 free(srule);
1093 }
1094
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001095 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
1096 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001097 if (rule->cond) {
1098 prune_acl_cond(rule->cond);
1099 free(rule->cond);
1100 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001101 free(rule);
1102 }
1103
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001104 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
1105 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01001106 if (rdr->cond) {
1107 prune_acl_cond(rdr->cond);
1108 free(rdr->cond);
1109 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001110 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01001111 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
1112 LIST_DEL(&lf->list);
1113 free(lf);
1114 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001115 free(rdr);
1116 }
1117
William Lallemand0f99e342011-10-12 17:50:54 +02001118 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
1119 LIST_DEL(&log->list);
1120 free(log);
1121 }
1122
William Lallemand723b73a2012-02-08 16:37:49 +01001123 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
1124 LIST_DEL(&lf->list);
1125 free(lf);
1126 }
1127
Simon Hormanac821422011-07-15 13:14:09 +09001128 deinit_tcp_rules(&p->tcp_req.inspect_rules);
1129 deinit_tcp_rules(&p->tcp_req.l4_rules);
1130
Simon Horman6fb82592011-07-15 13:14:11 +09001131 deinit_stick_rules(&p->storersp_rules);
1132 deinit_stick_rules(&p->sticking_rules);
1133
Willy Tarreaua534fea2008-08-03 12:19:50 +02001134 free(p->appsession_name);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001135
1136 h = p->req_cap;
1137 while (h) {
1138 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001139 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001140 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001141 free(h);
1142 h = h_next;
1143 }/* end while(h) */
1144
1145 h = p->rsp_cap;
1146 while (h) {
1147 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001148 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001149 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001150 free(h);
1151 h = h_next;
1152 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001153
Willy Tarreaubaaee002006-06-26 02:48:02 +02001154 s = p->srv;
1155 while (s) {
1156 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001157
Willy Tarreau5b3a2022012-09-28 15:01:02 +02001158 if (s->check.task) {
1159 task_delete(s->check.task);
1160 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001161 }
Simon Hormand60d6912013-11-25 10:46:36 +09001162 if (s->agent.task) {
1163 task_delete(s->agent.task);
1164 task_free(s->agent.task);
1165 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001166
Willy Tarreau2e993902011-10-31 11:53:20 +01001167 if (s->warmup) {
1168 task_delete(s->warmup);
1169 task_free(s->warmup);
1170 }
1171
Willy Tarreaua534fea2008-08-03 12:19:50 +02001172 free(s->id);
1173 free(s->cookie);
Willy Tarreau1ae1b7b2012-09-28 15:28:30 +02001174 free(s->check.bi);
1175 free(s->check.bo);
Simon Hormand60d6912013-11-25 10:46:36 +09001176 free(s->agent.bi);
1177 free(s->agent.bo);
Sárközi, László34c01792014-09-05 10:08:23 +02001178 free((char*)s->conf.file);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001179 free(s);
1180 s = s_next;
1181 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001182
Willy Tarreau4348fad2012-09-20 16:48:07 +02001183 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02001184 unbind_listener(l);
1185 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001186 LIST_DEL(&l->by_fe);
1187 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001188 free(l->name);
1189 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001190 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001191 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001192
Willy Tarreau4348fad2012-09-20 16:48:07 +02001193 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001194 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
1195#ifdef USE_OPENSSL
1196 ssl_sock_free_all_ctx(bind_conf);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001197 free(bind_conf->ca_file);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001198 free(bind_conf->ciphers);
Emeric Brun2b58d042012-09-20 17:10:03 +02001199 free(bind_conf->ecdhe);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001200 free(bind_conf->crl_file);
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001201#endif /* USE_OPENSSL */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001202 free(bind_conf->file);
1203 free(bind_conf->arg);
1204 LIST_DEL(&bind_conf->by_fe);
1205 free(bind_conf);
1206 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001207
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001208 free(p->desc);
1209 free(p->fwdfor_hdr_name);
1210
Willy Tarreauff011f22011-01-06 17:51:27 +01001211 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06001212 free_http_res_rules(&p->http_res_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02001213 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01001214
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001215 pool_destroy2(p->req_cap_pool);
1216 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09001217 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001218
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001219 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001220 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001221 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001222 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02001223
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001224 while (ua) {
1225 uap = ua;
1226 ua = ua->next;
1227
Willy Tarreaua534fea2008-08-03 12:19:50 +02001228 free(uap->uri_prefix);
1229 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001230 free(uap->node);
1231 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001232
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001233 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001234 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001235
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001236 free(uap);
1237 }
1238
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001239 userlist_free(userlist);
1240
Willy Tarreaudd815982007-10-16 12:25:14 +02001241 protocol_unbind_all();
1242
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001243 free(global.log_send_hostname); global.log_send_hostname = NULL;
Kevinm48936af2010-12-22 16:08:21 +00001244 free(global.log_tag); global.log_tag = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001245 free(global.chroot); global.chroot = NULL;
1246 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001247 free(global.node); global.node = NULL;
1248 free(global.desc); global.desc = NULL;
Godbach4cc1b0d2013-06-26 16:49:51 +08001249 free(fdinfo); fdinfo = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001250 free(fdtab); fdtab = NULL;
1251 free(oldpids); oldpids = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001252 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001253
William Lallemand0f99e342011-10-12 17:50:54 +02001254 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1255 LIST_DEL(&log->list);
1256 free(log);
1257 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001258 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1259 LIST_DEL(&wl->list);
1260 free(wl);
1261 }
1262
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001263 pool_destroy2(pool2_session);
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001264 pool_destroy2(pool2_connection);
Willy Tarreau9b28e032012-10-12 23:49:43 +02001265 pool_destroy2(pool2_buffer);
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001266 pool_destroy2(pool2_channel);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001267 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001268 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001269 pool_destroy2(pool2_capture);
Willy Tarreau63963c62007-05-13 21:29:55 +02001270 pool_destroy2(pool2_appsess);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001271 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001272 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001273 pool_destroy2(pool2_hdr_idx);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001274
1275 if (have_appsession) {
Willy Tarreau63963c62007-05-13 21:29:55 +02001276 pool_destroy2(apools.serverid);
1277 pool_destroy2(apools.sessid);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001278 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001279
1280 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001281} /* end deinit() */
1282
Willy Tarreaubb545b42010-08-25 12:58:59 +02001283/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1284 * pids the signal was correctly delivered to.
1285 */
1286static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001287{
1288 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001289 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001290 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001291 if (kill(oldpids[p], sig) == 0)
1292 ret++;
1293 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001294}
1295
Willy Tarreau918ff602011-07-25 16:33:49 +02001296/* Runs the polling loop */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001297void run_poll_loop()
1298{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001299 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001300
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001301 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001302 while (1) {
Willy Tarreau29857942009-05-10 09:01:21 +02001303 /* check if we caught some signals and process them */
1304 signal_process_queue();
1305
Willy Tarreau58b458d2008-06-29 22:40:23 +02001306 /* Check if we can expire some tasks */
1307 wake_expired_tasks(&next);
1308
1309 /* Process a few tasks */
Willy Tarreaud825eef2007-05-12 22:35:00 +02001310 process_runnable_tasks(&next);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001311
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001312 /* stop when there's nothing left to do */
1313 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001314 break;
1315
Willy Tarreau58b458d2008-06-29 22:40:23 +02001316 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001317 cur_poller.poll(&cur_poller, next);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01001318 fd_process_cached_events();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001319 }
1320}
1321
Willy Tarreaue9b26022011-08-01 20:57:55 +02001322/* This is the global management task for listeners. It enables listeners waiting
1323 * for global resources when there are enough free resource, or at least once in
1324 * a while. It is designed to be called as a task.
1325 */
1326static struct task *manage_global_listener_queue(struct task *t)
1327{
1328 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001329 /* queue is empty, nothing to do */
1330 if (LIST_ISEMPTY(&global_listener_queue))
1331 goto out;
1332
1333 /* If there are still too many concurrent connections, let's wait for
1334 * some of them to go away. We don't need to re-arm the timer because
1335 * each of them will scan the queue anyway.
1336 */
1337 if (unlikely(actconn >= global.maxconn))
1338 goto out;
1339
1340 /* We should periodically try to enable listeners waiting for a global
1341 * resource here, because it is possible, though very unlikely, that
1342 * they have been blocked by a temporary lack of global resource such
1343 * as a file descriptor or memory and that the temporary condition has
1344 * disappeared.
1345 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001346 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001347
1348 out:
1349 t->expire = next;
1350 task_queue(t);
1351 return t;
1352}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001353
Willy Tarreaubaaee002006-06-26 02:48:02 +02001354int main(int argc, char **argv)
1355{
1356 int err, retry;
1357 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001358 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02001359 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001360
Emeric Bruncf20bf12010-10-22 16:06:11 +02001361 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001362 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1363 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1364 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001365
Willy Tarreaue437c442010-03-17 18:02:46 +01001366 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1367 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1368 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001369 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001370 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001371
Willy Tarreaudc23a922011-02-16 11:10:36 +01001372 /* ulimits */
1373 if (!global.rlimit_nofile)
1374 global.rlimit_nofile = global.maxsock;
1375
1376 if (global.rlimit_nofile) {
1377 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1378 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
1379 Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile);
1380 }
1381 }
1382
1383 if (global.rlimit_memmax) {
1384 limit.rlim_cur = limit.rlim_max =
1385 global.rlimit_memmax * 1048576 / global.nbproc;
1386#ifdef RLIMIT_AS
1387 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1388 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1389 argv[0], global.rlimit_memmax);
1390 }
1391#else
1392 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1393 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1394 argv[0], global.rlimit_memmax);
1395 }
1396#endif
1397 }
1398
Willy Tarreaubaaee002006-06-26 02:48:02 +02001399 /* We will loop at most 100 times with 10 ms delay each time.
1400 * That's at most 1 second. We only send a signal to old pids
1401 * if we cannot grab at least one port.
1402 */
1403 retry = MAX_START_RETRIES;
1404 err = ERR_NONE;
1405 while (retry >= 0) {
1406 struct timeval w;
1407 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001408 /* exit the loop on no error or fatal error */
1409 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001410 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001411 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001412 break;
1413
1414 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1415 * listening sockets. So on those platforms, it would be wiser to
1416 * simply send SIGUSR1, which will not be undoable.
1417 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001418 if (tell_old_pids(SIGTTOU) == 0) {
1419 /* no need to wait if we can't contact old pids */
1420 retry = 0;
1421 continue;
1422 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001423 /* give some time to old processes to stop listening */
1424 w.tv_sec = 0;
1425 w.tv_usec = 10*1000;
1426 select(0, NULL, NULL, NULL, &w);
1427 retry--;
1428 }
1429
1430 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001431 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001432 if (retry != MAX_START_RETRIES && nb_oldpids) {
1433 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001434 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001435 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001436 exit(1);
1437 }
1438
1439 if (listeners == 0) {
1440 Alert("[%s.main()] No enabled listener found (check the <listen> keywords) ! Exiting.\n", argv[0]);
1441 /* Note: we don't have to send anything to the old pids because we
1442 * never stopped them. */
1443 exit(1);
1444 }
1445
Emeric Bruncf20bf12010-10-22 16:06:11 +02001446 err = protocol_bind_all(errmsg, sizeof(errmsg));
1447 if ((err & ~ERR_WARN) != ERR_NONE) {
1448 if ((err & ERR_ALERT) || (err & ERR_WARN))
1449 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1450
Willy Tarreaudd815982007-10-16 12:25:14 +02001451 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1452 protocol_unbind_all(); /* cleanup everything we can */
1453 if (nb_oldpids)
1454 tell_old_pids(SIGTTIN);
1455 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001456 } else if (err & ERR_WARN) {
1457 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001458 }
1459
Willy Tarreaubaaee002006-06-26 02:48:02 +02001460 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001461 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1462 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001463
Willy Tarreaubaaee002006-06-26 02:48:02 +02001464 /* MODE_QUIET can inhibit alerts and warnings below this line */
1465
1466 global.mode &= ~MODE_STARTING;
1467 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1468 /* detach from the tty */
1469 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001470 }
1471
1472 /* open log & pid files before the chroot */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001473 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001474 unlink(global.pidfile);
1475 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1476 if (pidfd < 0) {
1477 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1478 if (nb_oldpids)
1479 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001480 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001481 exit(1);
1482 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001483 }
1484
Willy Tarreaub38651a2007-03-24 17:24:39 +01001485#ifdef CONFIG_HAP_CTTPROXY
1486 if (global.last_checks & LSTCHK_CTTPROXY) {
1487 int ret;
1488
1489 ret = check_cttproxy_version();
1490 if (ret < 0) {
1491 Alert("[%s.main()] Cannot enable cttproxy.\n%s",
1492 argv[0],
1493 (ret == -1) ? " Incorrect module version.\n"
1494 : " Make sure you have enough permissions and that the module is loaded.\n");
Willy Tarreaudd815982007-10-16 12:25:14 +02001495 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001496 exit(1);
1497 }
1498 }
1499#endif
1500
1501 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1502 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001503 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001504 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001505 exit(1);
1506 }
1507
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001508 /* If the user is not root, we'll still let him try the configuration
1509 * but we inform him that unexpected behaviour may occur.
1510 */
1511 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1512 Warning("[%s.main()] Some options which require full privileges"
1513 " might not work well.\n"
1514 "", argv[0]);
1515
Willy Tarreauf223cc02007-10-15 18:57:08 +02001516 /* chroot if needed */
1517 if (global.chroot != NULL) {
Willy Tarreau21337822012-04-29 14:11:38 +02001518 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Willy Tarreauf223cc02007-10-15 18:57:08 +02001519 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1520 if (nb_oldpids)
1521 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001522 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001523 exit(1);
1524 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02001525 }
1526
Willy Tarreaubaaee002006-06-26 02:48:02 +02001527 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001528 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001529
1530 /* Note that any error at this stage will be fatal because we will not
1531 * be able to restart the old pids.
1532 */
1533
1534 /* setgid / setuid */
Michael Schererab012dd2013-01-12 18:35:19 +01001535 if (global.gid) {
1536 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
1537 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
1538 " without 'uid'/'user' is generally useless.\n", argv[0]);
1539
1540 if (setgid(global.gid) == -1) {
1541 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
1542 protocol_unbind_all();
1543 exit(1);
1544 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001545 }
1546
1547 if (global.uid && setuid(global.uid) == -1) {
1548 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001549 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001550 exit(1);
1551 }
1552
1553 /* check ulimits */
1554 limit.rlim_cur = limit.rlim_max = 0;
1555 getrlimit(RLIMIT_NOFILE, &limit);
1556 if (limit.rlim_cur < global.maxsock) {
1557 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 +02001558 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001559 }
1560
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001561 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001562 struct proxy *px;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001563 int ret = 0;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001564 int *children = calloc(global.nbproc, sizeof(int));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001565 int proc;
1566
1567 /* the father launches the required number of processes */
1568 for (proc = 0; proc < global.nbproc; proc++) {
1569 ret = fork();
1570 if (ret < 0) {
1571 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001572 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001573 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001574 }
1575 else if (ret == 0) /* child breaks here */
1576 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001577 children[proc] = ret;
Willy Tarreau269ab312012-09-05 08:02:48 +02001578 if (pidfd >= 0) {
1579 char pidstr[100];
1580 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01001581 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001582 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001583 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001584 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001585
1586#ifdef USE_CPU_AFFINITY
1587 if (proc < global.nbproc && /* child */
1588 proc < 32 && /* only the first 32 processes may be pinned */
1589 global.cpu_map[proc]) /* only do this if the process has a CPU map */
1590 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1591#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001592 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02001593 if (pidfd >= 0) {
1594 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
1595 close(pidfd);
1596 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02001597
1598 /* We won't ever use this anymore */
1599 free(oldpids); oldpids = NULL;
1600 free(global.chroot); global.chroot = NULL;
1601 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001602
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001603 /* we might have to unbind some proxies from some processes */
1604 px = proxy;
1605 while (px != NULL) {
1606 if (px->bind_proc && px->state != PR_STSTOPPED) {
Willy Tarreaua9db57e2013-01-18 11:29:29 +01001607 if (!(px->bind_proc & (1UL << proc)))
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001608 stop_proxy(px);
1609 }
1610 px = px->next;
1611 }
1612
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001613 if (proc == global.nbproc) {
1614 if (global.mode & MODE_SYSTEMD) {
Simone Gottib7f1cfc2014-06-11 00:15:51 +02001615 protocol_unbind_all();
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001616 for (proc = 0; proc < global.nbproc; proc++)
1617 while (waitpid(children[proc], NULL, 0) == -1 && errno == EINTR);
1618 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001619 exit(0); /* parent must leave */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001620 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001621
Dirkjan Bussink07fcaaa2014-04-28 22:57:16 +00001622 free(children);
1623 children = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001624 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
1625 * that we can detach from the TTY. We MUST NOT do it in other cases since
1626 * it would have already be done, and 0-2 would have been affected to listening
1627 * sockets
1628 */
Willy Tarreau106cb762008-11-16 07:40:34 +01001629 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001630 /* detach from the tty */
1631 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01001632 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001633 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
1634 }
1635 pid = getpid(); /* update child's pid */
1636 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02001637 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001638 }
1639
Willy Tarreaudd815982007-10-16 12:25:14 +02001640 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001641 /*
1642 * That's it : the central polling loop. Run until we stop.
1643 */
1644 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001645
1646 /* Free all Hash Keys and all Hash elements */
1647 appsession_cleanup();
1648 /* Do some cleanup */
1649 deinit();
1650
1651 exit(0);
1652}
1653
1654
1655/*
1656 * Local variables:
1657 * c-indent-level: 8
1658 * c-basic-offset: 8
1659 * End:
1660 */