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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau068c3442016-04-13 00:05:35 +02003 * Copyright 2000-2016 Willy Tarreau <willy@haproxy.org>.
Willy Tarreaubaaee002006-06-26 02:48:02 +02004 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 *
10 * Please refer to RFC2068 or RFC2616 for informations about HTTP protocol, and
11 * RFC2965 for informations about cookies usage. More generally, the IETF HTTP
12 * Working Group's web site should be consulted for protocol related changes :
13 *
14 * http://ftp.ics.uci.edu/pub/ietf/http/
15 *
16 * Pending bugs (may be not fixed because never reproduced) :
17 * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes
18 * the proxy to terminate (no core) if the client breaks the connection during
19 * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to
20 * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be
21 * related to missing setsid() (fixed in 1.1.15)
22 * - a proxy with an invalid config will prevent the startup even if disabled.
23 *
24 * ChangeLog has moved to the CHANGELOG file.
25 *
Willy Tarreaubaaee002006-06-26 02:48:02 +020026 */
27
David Carlier21fab692015-12-08 21:43:09 +000028#define _GNU_SOURCE
Willy Tarreaubaaee002006-06-26 02:48:02 +020029#include <stdio.h>
30#include <stdlib.h>
31#include <unistd.h>
32#include <string.h>
33#include <ctype.h>
34#include <sys/time.h>
35#include <sys/types.h>
36#include <sys/socket.h>
37#include <netinet/tcp.h>
38#include <netinet/in.h>
39#include <arpa/inet.h>
40#include <netdb.h>
41#include <fcntl.h>
42#include <errno.h>
43#include <signal.h>
44#include <stdarg.h>
45#include <sys/resource.h>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010046#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020047#include <time.h>
48#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010049#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010050#ifdef USE_CPU_AFFINITY
Willy Tarreaufc6c0322012-11-16 16:12:27 +010051#include <sched.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010052#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020053
54#ifdef DEBUG_FULL
55#include <assert.h>
56#endif
57
Willy Tarreau2dd0d472006-06-29 17:53:05 +020058#include <common/appsession.h>
59#include <common/base64.h>
60#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020061#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020062#include <common/compat.h>
63#include <common/config.h>
64#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010065#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020066#include <common/memory.h>
67#include <common/mini-clist.h>
68#include <common/regex.h>
69#include <common/standard.h>
70#include <common/time.h>
71#include <common/uri_auth.h>
72#include <common/version.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020073
74#include <types/capture.h>
75#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090076#include <types/proto_tcp.h>
77#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020078#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020079
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +010080#include <proto/auth.h>
Willy Tarreau0fc45a72007-06-17 00:36:03 +020081#include <proto/acl.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020082#include <proto/arg.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020083#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020084#include <proto/channel.h>
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +020085#include <proto/checks.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +020086#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020087#include <proto/fd.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +020088#include <proto/hdr_idx.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020089#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020090#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +010091#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020092#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +010093#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020094#include <proto/proxy.h>
95#include <proto/queue.h>
96#include <proto/server.h>
Willy Tarreauc6ca1a02007-05-13 19:43:47 +020097#include <proto/session.h>
Willy Tarreau29857942009-05-10 09:01:21 +020098#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020099#include <proto/task.h>
100
Willy Tarreaub38651a2007-03-24 17:24:39 +0100101#ifdef CONFIG_HAP_CTTPROXY
102#include <proto/cttproxy.h>
103#endif
104
Emeric Brunfc0421f2012-09-07 17:30:07 +0200105#ifdef USE_OPENSSL
106#include <proto/ssl_sock.h>
107#endif
108
Willy Tarreaubaaee002006-06-26 02:48:02 +0200109/*********************************************************************/
110
Cyril Bonté6162c432012-11-10 19:27:47 +0100111extern const struct comp_algo comp_algos[];
112
Willy Tarreaubaaee002006-06-26 02:48:02 +0200113/*********************************************************************/
114
Willy Tarreau477ecd82010-01-03 21:12:30 +0100115/* list of config files */
116static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200117int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100118int relative_pid = 1; /* process id starting at 1 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200119
120/* global options */
121struct global global = {
Willy Tarreau247a13a2012-11-15 17:38:15 +0100122 .nbproc = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200123 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200124 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100125#ifdef DEFAULT_MAXZLIBMEM
Willy Tarreau5a940372012-12-03 12:10:45 +0100126 .maxzlibmem = DEFAULT_MAXZLIBMEM * 1024U * 1024U,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100127#else
William Lallemand9d5f5482012-11-07 16:12:57 +0100128 .maxzlibmem = 0,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100129#endif
William Lallemandd85f9172012-11-09 17:05:39 +0100130 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100131 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200132 .unix_bind = {
133 .ux = {
134 .uid = -1,
135 .gid = -1,
136 .mode = 0,
137 }
138 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200139 .tune = {
140 .bufsize = BUFSIZE,
141 .maxrewrite = MAXREWRITE,
Willy Tarreau43961d52010-10-04 20:39:20 +0200142 .chksize = BUFSIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200143#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100144 .sslcachesize = SSLCACHESIZE,
Remi Gacognef46cd6e2014-06-12 14:58:40 +0200145 .ssl_default_dh_param = SSL_DEFAULT_DH_PARAM,
Willy Tarreau03effc12014-02-12 14:55:41 +0100146#ifdef DEFAULT_SSL_MAX_RECORD
147 .ssl_max_record = DEFAULT_SSL_MAX_RECORD,
148#endif
Emeric Brunfc32aca2012-09-03 12:10:29 +0200149#endif
William Lallemanda509e4c2012-11-07 16:54:34 +0100150#ifdef USE_ZLIB
151 .zlibmemlevel = 8,
152 .zlibwindowsize = MAX_WBITS,
153#endif
William Lallemandf3747832012-11-09 12:33:10 +0100154 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100155#ifdef DEFAULT_IDLE_TIMER
156 .idle_timer = DEFAULT_IDLE_TIMER,
157#else
158 .idle_timer = 1000, /* 1 second */
159#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200160 },
Emeric Brun76d88952012-10-05 15:47:31 +0200161#ifdef USE_OPENSSL
162#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200163 .maxsslconn = DEFAULT_MAXSSLCONN,
164#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200165#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200166 /* others NULL OK */
167};
168
169/*********************************************************************/
170
171int stopping; /* non zero means stopping in progress */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200172int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200173
174/* Here we store informations about the pids of the processes we may pause
175 * or kill. We will send them a signal every 10 ms until we can bind to all
176 * our ports. With 200 retries, that's about 2 seconds.
177 */
178#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200179static int *oldpids = NULL;
180static int oldpids_sig; /* use USR1 or TERM */
181
182/* this is used to drain data, and as a temporary buffer for sprintf()... */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100183struct chunk trash = { };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200184
Willy Tarreau8096de92010-02-26 11:12:27 +0100185/* this buffer is always the same size as standard buffers and is used for
186 * swapping data inside a buffer.
187 */
188char *swap_buffer = NULL;
189
Willy Tarreaubb545b42010-08-25 12:58:59 +0200190int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200191const int zero = 0;
192const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200193const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200194
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100195char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200196char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200197
Willy Tarreau89efaed2013-12-13 15:14:55 +0100198/* used from everywhere just to drain results we don't want to read and which
199 * recent versions of gcc increasingly and annoyingly complain about.
200 */
201int shut_your_big_mouth_gcc_int = 0;
202
Willy Tarreau08ceb102011-07-24 22:58:00 +0200203/* list of the temporarily limited listeners because of lack of resource */
204struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200205struct task *global_listener_queue_task;
206static struct task *manage_global_listener_queue(struct task *t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200207
Willy Tarreauff055502014-04-28 22:27:06 +0200208/* bitfield of a few warnings to emit just once (WARN_*) */
209unsigned int warned = 0;
210
Willy Tarreaubaaee002006-06-26 02:48:02 +0200211/*********************************************************************/
212/* general purpose functions ***************************************/
213/*********************************************************************/
214
215void display_version()
216{
217 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreaua5614042016-03-14 00:16:53 +0100218 printf("Copyright 2000-2016 Willy Tarreau <willy@haproxy.org>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200219}
220
Willy Tarreau7b066db2007-12-02 11:28:59 +0100221void display_build_opts()
222{
223 printf("Build options :"
224#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100225 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100226#endif
227#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100228 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100229#endif
230#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100231 "\n CC = " BUILD_CC
232#endif
233#ifdef BUILD_CFLAGS
234 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100235#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100236#ifdef BUILD_OPTIONS
237 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100238#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200239 "\n\nDefault settings :"
240 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
241 "\n\n",
242 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200243
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100244 printf("Encrypted password support via crypt(3): "
245#ifdef CONFIG_HAP_CRYPT
246 "yes"
247#else
248 "no"
249#endif
250 "\n");
251
Cyril Bonté6162c432012-11-10 19:27:47 +0100252#ifdef USE_ZLIB
253 printf("Built with zlib version : " ZLIB_VERSION "\n");
Lukas Tribus57333bd2016-09-12 21:42:14 +0000254 printf("Running on zlib version : %s\n", zlibVersion());
Cyril Bonté6162c432012-11-10 19:27:47 +0100255#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
Lukas Tribus080ef162016-09-12 21:42:07 +0000308 printf("Built with PCRE version : %s\n", (HAP_XSTRING(Z PCRE_PRERELEASE)[1] == 0)?
309 HAP_XSTRING(PCRE_MAJOR.PCRE_MINOR PCRE_DATE) :
310 HAP_XSTRING(PCRE_MAJOR.PCRE_MINOR) HAP_XSTRING(PCRE_PRERELEASE PCRE_DATE));
Lukas Tribus388ed782016-09-12 21:42:00 +0000311 printf("Running on PCRE version : %s", pcre_version());
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200312 printf("\nPCRE library supports JIT : ");
313#ifdef USE_PCRE_JIT
314 {
315 int r;
316 pcre_config(PCRE_CONFIG_JIT, &r);
317 if (r)
318 printf("yes");
319 else
320 printf("no (libpcre build without JIT?)");
321 }
Lukas Tribusea68d362013-04-04 12:24:16 +0200322#else
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200323 printf("no (USE_PCRE_JIT not set)");
Lukas Tribusea68d362013-04-04 12:24:16 +0200324#endif
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200325 printf("\n");
Lukas Tribusea68d362013-04-04 12:24:16 +0200326#else
327 printf("Built without PCRE support (using libc's regex instead)\n");
328#endif
329
Pieter Baauwd551fb52013-05-08 22:49:23 +0200330#if defined(CONFIG_HAP_TRANSPARENT) || defined(CONFIG_HAP_CTTPROXY)
331 printf("Built with transparent proxy support using:"
332#if defined(CONFIG_HAP_CTTPROXY)
333 " CTTPROXY"
334#endif
335#if defined(IP_TRANSPARENT)
336 " IP_TRANSPARENT"
337#endif
338#if defined(IPV6_TRANSPARENT)
339 " IPV6_TRANSPARENT"
340#endif
341#if defined(IP_FREEBIND)
342 " IP_FREEBIND"
343#endif
Pieter Baauwff30b662013-05-08 23:22:39 +0200344#if defined(IP_BINDANY)
345 " IP_BINDANY"
346#endif
347#if defined(IPV6_BINDANY)
348 " IPV6_BINDANY"
349#endif
Pieter Baauw1eb75922013-05-08 23:30:23 +0200350#if defined(SO_BINDANY)
351 " SO_BINDANY"
352#endif
Pieter Baauwd551fb52013-05-08 22:49:23 +0200353 "\n");
354#endif
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100355 putchar('\n');
356
Willy Tarreaube5b6852009-10-03 18:57:08 +0200357 list_pollers(stdout);
358 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100359}
360
Willy Tarreaubaaee002006-06-26 02:48:02 +0200361/*
362 * This function prints the command line usage and exits
363 */
364void usage(char *name)
365{
366 display_version();
367 fprintf(stderr,
Willy Tarreau5d01a632009-06-22 16:02:30 +0200368 "Usage : %s [-f <cfgfile>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200369 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200370 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100371 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200372 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200373 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200374 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200375 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200376 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200377 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200378 " -n sets the maximum total # of connections (%d)\n"
379 " -m limits the usable amount of memory (in MB)\n"
380 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200381 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200382 " -p writes pids of all children to this file\n"
383#if defined(ENABLE_EPOLL)
384 " -de disables epoll() usage even when available\n"
385#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200386#if defined(ENABLE_KQUEUE)
387 " -dk disables kqueue() usage even when available\n"
388#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200389#if defined(ENABLE_POLL)
390 " -dp disables poll() usage even when available\n"
391#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200392#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100393 " -dS disables splice usage (broken on old kernels)\n"
394#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200395#if defined(USE_GETADDRINFO)
396 " -dG disables getaddrinfo() usage\n"
397#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100398 " -dV disables SSL verify on servers side\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200399 " -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.\n"
400 "\n",
401 name, DEFAULT_MAXCONN, cfg_maxpconn);
402 exit(1);
403}
404
405
406
407/*********************************************************************/
408/* more specific functions ***************************************/
409/*********************************************************************/
410
411/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200412 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
413 * a signal zero to all subscribers. This means that it's as easy as
414 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200415 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200416void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200417{
418 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200419 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200420 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200421}
422
423/*
424 * upon SIGTTOU, we pause everything
425 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200426void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200427{
428 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200429 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200430}
431
432/*
433 * upon SIGTTIN, let's have a soft stop.
434 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200435void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200436{
Willy Tarreaube58c382011-07-24 18:28:10 +0200437 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200438}
439
440/*
441 * this function dumps every server's state when the process receives SIGHUP.
442 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200443void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200444{
445 struct proxy *p = proxy;
446
447 Warning("SIGHUP received, dumping servers states.\n");
448 while (p) {
449 struct server *s = p->srv;
450
451 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
452 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100453 chunk_printf(&trash,
454 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
455 p->id, s->id,
Willy Tarreau892337c2014-05-13 23:41:20 +0200456 (s->state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100457 s->cur_sess, s->nbpend, s->counters.cum_sess);
458 Warning("%s\n", trash.str);
459 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200460 s = s->next;
461 }
462
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200463 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
464 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100465 chunk_printf(&trash,
466 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
467 p->id,
468 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 +0200469 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100470 chunk_printf(&trash,
471 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
472 p->id,
473 (p->srv_bck) ? "is running on backup servers" : "has no server available",
474 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 +0200475 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100476 chunk_printf(&trash,
477 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
478 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
479 p->id, p->srv_act, p->srv_bck,
480 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 +0200481 }
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100482 Warning("%s\n", trash.str);
483 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200484
485 p = p->next;
486 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200487}
488
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200489void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200490{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200491 /* dump memory usage then free everything possible */
492 dump_pools();
493 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200494}
495
Willy Tarreaubaaee002006-06-26 02:48:02 +0200496/*
497 * This function initializes all the necessary variables. It only returns
498 * if everything is OK. If something fails, it exits.
499 */
500void init(int argc, char **argv)
501{
Willy Tarreaubaaee002006-06-26 02:48:02 +0200502 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200503 char *tmp;
504 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200505 int err_code = 0;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100506 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000507 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200508 char *change_dir = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200509
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100510 chunk_init(&trash, malloc(global.tune.bufsize), global.tune.bufsize);
Willy Tarreau2819e992013-12-13 14:41:10 +0100511 alloc_trash_buffers(global.tune.bufsize);
David du Colombier7af46052012-05-16 14:16:48 +0200512
Emeric Brun2b920a12010-09-23 18:30:22 +0200513 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
514 * the string in case of truncation, and at least FreeBSD appears not to do
515 * it.
516 */
517 memset(hostname, 0, sizeof(hostname));
518 gethostname(hostname, sizeof(hostname) - 1);
519 memset(localpeer, 0, sizeof(localpeer));
520 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
521
Willy Tarreaubaaee002006-06-26 02:48:02 +0200522 /*
523 * Initialize the previously static variables.
524 */
525
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100526 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200527
528
529#ifdef HAPROXY_MEMMAX
530 global.rlimit_memmax = HAPROXY_MEMMAX;
531#endif
532
Benoit GARNIER5237ace2016-03-27 11:08:03 +0200533 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200534 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200535 start_date = now;
536
Willy Tarreau84310e22014-02-14 11:59:04 +0100537 srandom(now_ms - getpid());
538
Willy Tarreau29857942009-05-10 09:01:21 +0200539 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100540 if (init_acl() != 0)
541 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200542 init_task();
543 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200544 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +0200545 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200546 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100547 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200548
Willy Tarreau43b78992009-01-25 15:42:27 +0100549 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200550#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100551 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200552#endif
553#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100554 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200555#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200556#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100557 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200558#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200559#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100560 global.tune.options |= GTUNE_USE_SPLICE;
561#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200562#if defined(USE_GETADDRINFO)
563 global.tune.options |= GTUNE_USE_GAI;
564#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200565
566 pid = getpid();
567 progname = *argv;
568 while ((tmp = strchr(progname, '/')) != NULL)
569 progname = tmp + 1;
570
Kevinm48936af2010-12-22 16:08:21 +0000571 /* the process name is used for the logs only */
572 global.log_tag = strdup(progname);
573
Willy Tarreaubaaee002006-06-26 02:48:02 +0200574 argc--; argv++;
575 while (argc > 0) {
576 char *flag;
577
578 if (**argv == '-') {
579 flag = *argv+1;
580
581 /* 1 arg */
582 if (*flag == 'v') {
583 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100584 if (flag[1] == 'v') /* -vv */
585 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200586 exit(0);
587 }
588#if defined(ENABLE_EPOLL)
589 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100590 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200591#endif
592#if defined(ENABLE_POLL)
593 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100594 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200595#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200596#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200597 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100598 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200599#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200600#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100601 else if (*flag == 'd' && flag[1] == 'S')
602 global.tune.options &= ~GTUNE_USE_SPLICE;
603#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200604#if defined(USE_GETADDRINFO)
605 else if (*flag == 'd' && flag[1] == 'G')
606 global.tune.options &= ~GTUNE_USE_GAI;
607#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100608 else if (*flag == 'd' && flag[1] == 'V')
609 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200610 else if (*flag == 'V')
611 arg_mode |= MODE_VERBOSE;
612 else if (*flag == 'd' && flag[1] == 'b')
613 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +0200614 else if (*flag == 'd' && flag[1] == 'M')
615 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreaubaaee002006-06-26 02:48:02 +0200616 else if (*flag == 'd')
617 arg_mode |= MODE_DEBUG;
618 else if (*flag == 'c')
619 arg_mode |= MODE_CHECK;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100620 else if (*flag == 'D') {
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200621 arg_mode |= MODE_DAEMON;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100622 if (flag[1] == 's') /* -Ds */
623 arg_mode |= MODE_SYSTEMD;
624 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200625 else if (*flag == 'q')
626 arg_mode |= MODE_QUIET;
627 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
628 /* list of pids to finish ('f') or terminate ('t') */
629
630 if (flag[1] == 'f')
631 oldpids_sig = SIGUSR1; /* finish then exit */
632 else
633 oldpids_sig = SIGTERM; /* terminate immediately */
634 argv++; argc--;
635
636 if (argc > 0) {
637 oldpids = calloc(argc, sizeof(int));
638 while (argc > 0) {
639 oldpids[nb_oldpids] = atol(*argv);
640 if (oldpids[nb_oldpids] <= 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200641 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200642 argc--; argv++;
643 nb_oldpids++;
644 }
645 }
646 }
647 else { /* >=2 args */
648 argv++; argc--;
649 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200650 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200651
652 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200653 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200654 case 'n' : cfg_maxconn = atol(*argv); break;
655 case 'm' : global.rlimit_memmax = atol(*argv); break;
656 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200657 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200658 case 'f' :
Willy Tarreau477ecd82010-01-03 21:12:30 +0100659 wl = (struct wordlist *)calloc(1, sizeof(*wl));
660 if (!wl) {
661 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200662 exit(1);
663 }
Willy Tarreau477ecd82010-01-03 21:12:30 +0100664 wl->s = *argv;
665 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200666 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200667 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200668 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200669 }
670 }
671 }
672 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200673 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200674 argv++; argc--;
675 }
676
677 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100678 (arg_mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_FOREGROUND | MODE_VERBOSE
Willy Tarreaubaaee002006-06-26 02:48:02 +0200679 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
680
Willy Tarreau477ecd82010-01-03 21:12:30 +0100681 if (LIST_ISEMPTY(&cfg_cfgfiles))
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200682 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200683
Willy Tarreau576132e2011-09-10 19:26:56 +0200684 if (change_dir && chdir(change_dir) < 0) {
685 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
686 exit(1);
687 }
688
Willy Tarreaubaaee002006-06-26 02:48:02 +0200689 have_appsession = 0;
690 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200691
692 init_default_instance();
693
Willy Tarreau477ecd82010-01-03 21:12:30 +0100694 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100695 int ret;
696
Willy Tarreau477ecd82010-01-03 21:12:30 +0100697 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100698 if (ret == -1) {
699 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100700 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100701 exit(1);
702 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100703 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100704 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100705 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200706 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200707 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200708 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200709
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100710 pattern_finalize_config();
711
Willy Tarreaubb925012009-07-23 13:36:36 +0200712 err_code |= check_config_validity();
713 if (err_code & (ERR_ABORT|ERR_FATAL)) {
714 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200715 exit(1);
716 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200717
718 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100719 struct peers *pr;
720 struct proxy *px;
721
722 for (pr = peers; pr; pr = pr->next)
723 if (pr->peers_fe)
724 break;
725
726 for (px = proxy; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +0200727 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100728 break;
729
730 if (pr || px) {
731 /* At least one peer or one listener has been found */
732 qfprintf(stdout, "Configuration file is valid\n");
733 exit(0);
734 }
735 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
736 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200737 }
738
Willy Tarreaue9b26022011-08-01 20:57:55 +0200739 global_listener_queue_task = task_new();
740 if (!global_listener_queue_task) {
741 Alert("Out of memory when initializing global task\n");
742 exit(1);
743 }
744 /* very simple initialization, users will queue the task if needed */
745 global_listener_queue_task->context = NULL; /* not even a context! */
746 global_listener_queue_task->process = manage_global_listener_queue;
747 global_listener_queue_task->expire = TICK_ETERNITY;
748
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200749 /* now we know the buffer size, we can initialize the channels and buffers */
750 init_channel();
Willy Tarreau9b28e032012-10-12 23:49:43 +0200751 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +0200752
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200753 if (have_appsession)
754 appsession_init();
755
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200756 if (start_checks() < 0)
757 exit(1);
758
Willy Tarreaubaaee002006-06-26 02:48:02 +0200759 if (cfg_maxconn > 0)
760 global.maxconn = cfg_maxconn;
761
762 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200763 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200764 global.pidfile = strdup(cfg_pidfile);
765 }
766
767 if (global.maxconn == 0)
768 global.maxconn = DEFAULT_MAXCONN;
769
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100770 if (!global.maxpipes) {
771 /* maxpipes not specified. Count how many frontends and backends
772 * may be using splicing, and bound that to maxconn.
773 */
774 struct proxy *cur;
775 int nbfe = 0, nbbe = 0;
776
777 for (cur = proxy; cur; cur = cur->next) {
778 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
779 if (cur->cap & PR_CAP_FE)
780 nbfe += cur->maxconn;
781 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +0100782 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100783 }
784 }
785 global.maxpipes = MAX(nbfe, nbbe);
786 if (global.maxpipes > global.maxconn)
787 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +0100788 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100789 }
790
791
Willy Tarreauabacc2c2011-09-07 14:26:33 +0200792 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200793 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +0100794 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200795
Willy Tarreau3c63fd82011-09-07 18:00:47 +0200796 if (global.stats_fe)
797 global.maxsock += global.stats_fe->maxconn;
798
799 if (peers) {
800 /* peers also need to bypass global maxconn */
801 struct peers *p = peers;
802
803 for (p = peers; p; p = p->next)
804 if (p->peers_fe)
805 global.maxsock += p->peers_fe->maxconn;
806 }
807
Willy Tarreau1db37712007-06-03 17:16:49 +0200808 if (global.tune.maxpollevents <= 0)
809 global.tune.maxpollevents = MAX_POLL_EVENTS;
810
Willy Tarreau6f4a82c2009-03-21 20:43:57 +0100811 if (global.tune.recv_enough == 0)
812 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
813
Willy Tarreau27a674e2009-08-17 07:23:33 +0200814 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
815 global.tune.maxrewrite = global.tune.bufsize / 2;
816
Willy Tarreaubaaee002006-06-26 02:48:02 +0200817 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
818 /* command line debug mode inhibits configuration mode */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100819 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200820 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
821 }
822
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100823 if (arg_mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200824 /* command line daemon mode inhibits foreground and debug modes mode */
825 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100826 global.mode |= (arg_mode & (MODE_DAEMON | MODE_SYSTEMD));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200827 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200828
829 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200830
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100831 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET))) {
832 Warning("<debug> mode incompatible with <quiet>, <daemon> and <systemd>. Keeping <debug> only.\n");
833 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200834 }
835
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100836 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_SYSTEMD))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200837 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
838 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
839 global.nbproc = 1;
840 }
841
842 if (global.nbproc < 1)
843 global.nbproc = 1;
844
Willy Tarreau8096de92010-02-26 11:12:27 +0100845 swap_buffer = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau7e2c6472012-10-29 20:44:36 +0100846 get_http_auth_buff = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau07115412012-10-29 21:56:59 +0100847 static_table_key = calloc(1, sizeof(*static_table_key) + global.tune.bufsize);
Willy Tarreau8096de92010-02-26 11:12:27 +0100848
Willy Tarreau8d5d77e2009-10-18 07:25:52 +0200849 fdinfo = (struct fdinfo *)calloc(1,
850 sizeof(struct fdinfo) * (global.maxsock));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200851 fdtab = (struct fdtab *)calloc(1,
852 sizeof(struct fdtab) * (global.maxsock));
Willy Tarreauef1d1f82007-04-16 00:25:25 +0200853 /*
854 * Note: we could register external pollers here.
855 * Built-in pollers have been registered before main().
856 */
Willy Tarreau4f60f162007-04-08 16:39:58 +0200857
Willy Tarreau43b78992009-01-25 15:42:27 +0100858 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200859 disable_poller("kqueue");
860
Willy Tarreau43b78992009-01-25 15:42:27 +0100861 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200862 disable_poller("epoll");
863
Willy Tarreau43b78992009-01-25 15:42:27 +0100864 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200865 disable_poller("poll");
866
Willy Tarreau43b78992009-01-25 15:42:27 +0100867 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200868 disable_poller("select");
869
870 /* Note: we could disable any poller by name here */
871
Willy Tarreau2ff76222007-04-09 19:29:56 +0200872 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
873 list_pollers(stderr);
874
Willy Tarreau4f60f162007-04-08 16:39:58 +0200875 if (!init_pollers()) {
Willy Tarreau3fa87b12013-03-31 14:41:15 +0200876 Alert("No polling mechanism available.\n"
877 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
878 " is too low on this platform to support maxconn and the number of listeners\n"
879 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
880 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
Prach Pongpanichb837e682013-05-14 20:56:28 +0200881 " global maxconn setting to accommodate the system's limitation. For reference,\n"
Willy Tarreau3fa87b12013-03-31 14:41:15 +0200882 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
883 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
884 " check build settings using 'haproxy -vv'.\n\n",
885 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200886 exit(1);
887 }
Willy Tarreau2ff76222007-04-09 19:29:56 +0200888 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
889 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200890 }
891
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +0200892 if (!global.node)
893 global.node = strdup(hostname);
894
Willy Tarreaubaaee002006-06-26 02:48:02 +0200895}
896
Simon Horman6fb82592011-07-15 13:14:11 +0900897static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +0900898{
Simon Hormanac821422011-07-15 13:14:09 +0900899 struct acl_term_suite *suite, *suiteb;
900 struct acl_term *term, *termb;
901
Simon Horman6fb82592011-07-15 13:14:11 +0900902 if (!cond)
903 return;
904
905 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
906 list_for_each_entry_safe(term, termb, &suite->terms, list) {
907 LIST_DEL(&term->list);
908 free(term);
Simon Hormanac821422011-07-15 13:14:09 +0900909 }
Simon Horman6fb82592011-07-15 13:14:11 +0900910 LIST_DEL(&suite->list);
911 free(suite);
912 }
913
914 free(cond);
915}
916
917static void deinit_tcp_rules(struct list *rules)
918{
919 struct tcp_rule *trule, *truleb;
920
921 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +0900922 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +0900923 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +0900924 free(trule);
925 }
926}
927
Willy Tarreau12785782012-04-27 21:37:17 +0200928static void deinit_sample_arg(struct arg *p)
Simon Horman6fb82592011-07-15 13:14:11 +0900929{
Willy Tarreauf9954102012-04-20 14:03:29 +0200930 struct arg *p_back = p;
931
Simon Horman6fb82592011-07-15 13:14:11 +0900932 if (!p)
933 return;
934
Willy Tarreauf9954102012-04-20 14:03:29 +0200935 while (p->type != ARGT_STOP) {
Willy Tarreau496aa012012-06-01 10:38:29 +0200936 if (p->type == ARGT_STR || p->unresolved) {
Willy Tarreauf9954102012-04-20 14:03:29 +0200937 free(p->data.str.str);
938 p->data.str.str = NULL;
Willy Tarreau496aa012012-06-01 10:38:29 +0200939 p->unresolved = 0;
Willy Tarreauecfb8e82012-04-20 12:29:52 +0200940 }
Willy Tarreauf9954102012-04-20 14:03:29 +0200941 p++;
Willy Tarreauecfb8e82012-04-20 12:29:52 +0200942 }
Simon Horman6fb82592011-07-15 13:14:11 +0900943
Willy Tarreau2e845be2012-10-19 19:49:09 +0200944 if (p_back != empty_arg_list)
945 free(p_back);
Simon Horman6fb82592011-07-15 13:14:11 +0900946}
947
948static void deinit_stick_rules(struct list *rules)
949{
950 struct sticking_rule *rule, *ruleb;
951
952 list_for_each_entry_safe(rule, ruleb, rules, list) {
953 LIST_DEL(&rule->list);
954 deinit_acl_cond(rule->cond);
955 if (rule->expr) {
Willy Tarreau12785782012-04-27 21:37:17 +0200956 struct sample_conv_expr *conv_expr, *conv_exprb;
Simon Horman6fb82592011-07-15 13:14:11 +0900957 list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list)
Willy Tarreau12785782012-04-27 21:37:17 +0200958 deinit_sample_arg(conv_expr->arg_p);
959 deinit_sample_arg(rule->expr->arg_p);
Simon Horman6fb82592011-07-15 13:14:11 +0900960 free(rule->expr);
961 }
962 free(rule);
963 }
964}
965
Willy Tarreaubaaee002006-06-26 02:48:02 +0200966void deinit(void)
967{
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200968 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200969 struct cap_hdr *h,*h_next;
970 struct server *s,*s_next;
971 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200972 struct acl_cond *cond, *condb;
973 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200974 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200975 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +0200976 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200977 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100978 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100979 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200980 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +0200981 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +0100982 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +0200983 struct bind_conf *bind_conf, *bind_back;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200984 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200985
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200986 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200987 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +0200988 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +0200989 free(p->id);
990 free(p->check_req);
991 free(p->cookie_name);
992 free(p->cookie_domain);
993 free(p->url_param_name);
994 free(p->capture_name);
995 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +0900996 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +0200997 if (p->conf.logformat_string != default_http_log_format &&
998 p->conf.logformat_string != default_tcp_log_format &&
999 p->conf.logformat_string != clf_http_log_format)
1000 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02001001
Willy Tarreau62a61232013-04-12 18:13:46 +02001002 free(p->conf.lfs_file);
1003 free(p->conf.uniqueid_format_string);
1004 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08001005 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001006
Willy Tarreaua534fea2008-08-03 12:19:50 +02001007 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02001008 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001009
Willy Tarreauf4f04122010-01-28 18:10:50 +01001010 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
1011 LIST_DEL(&cwl->list);
1012 free(cwl->s);
1013 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001014 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001015
Willy Tarreauf4f04122010-01-28 18:10:50 +01001016 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
1017 LIST_DEL(&cwl->list);
1018 free(cwl->s);
1019 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001020 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001021
Willy Tarreaub80c2302007-11-30 20:51:32 +01001022 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
1023 LIST_DEL(&cond->list);
1024 prune_acl_cond(cond);
1025 free(cond);
1026 }
1027
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001028 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001029 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001030 regex_free(exp->preg);
1031 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001032 }
1033
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001034 if (exp->replace && exp->action != ACT_SETBE)
1035 free((char *)exp->replace);
1036 expb = exp;
1037 exp = exp->next;
1038 free(expb);
1039 }
1040
1041 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001042 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001043 regex_free(exp->preg);
1044 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001045 }
1046
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001047 if (exp->replace && exp->action != ACT_SETBE)
1048 free((char *)exp->replace);
1049 expb = exp;
1050 exp = exp->next;
1051 free(expb);
1052 }
1053
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001054 /* build a list of unique uri_auths */
1055 if (!ua)
1056 ua = p->uri_auth;
1057 else {
1058 /* check if p->uri_auth is unique */
1059 for (uap = ua; uap; uap=uap->next)
1060 if (uap == p->uri_auth)
1061 break;
1062
Willy Tarreauaccc4e12008-06-24 11:14:45 +02001063 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001064 /* add it, if it is */
1065 p->uri_auth->next = ua;
1066 ua = p->uri_auth;
1067 }
1068 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001069
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001070 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
1071 LIST_DEL(&acl->list);
1072 prune_acl(acl);
1073 free(acl);
1074 }
1075
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001076 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
1077 LIST_DEL(&srule->list);
1078 prune_acl_cond(srule->cond);
1079 free(srule->cond);
1080 free(srule);
1081 }
1082
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001083 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
1084 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001085 if (rule->cond) {
1086 prune_acl_cond(rule->cond);
1087 free(rule->cond);
1088 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001089 free(rule);
1090 }
1091
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001092 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
1093 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01001094 if (rdr->cond) {
1095 prune_acl_cond(rdr->cond);
1096 free(rdr->cond);
1097 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001098 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01001099 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
1100 LIST_DEL(&lf->list);
1101 free(lf);
1102 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001103 free(rdr);
1104 }
1105
William Lallemand0f99e342011-10-12 17:50:54 +02001106 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
1107 LIST_DEL(&log->list);
1108 free(log);
1109 }
1110
William Lallemand723b73a2012-02-08 16:37:49 +01001111 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
1112 LIST_DEL(&lf->list);
1113 free(lf);
1114 }
1115
Simon Hormanac821422011-07-15 13:14:09 +09001116 deinit_tcp_rules(&p->tcp_req.inspect_rules);
1117 deinit_tcp_rules(&p->tcp_req.l4_rules);
1118
Simon Horman6fb82592011-07-15 13:14:11 +09001119 deinit_stick_rules(&p->storersp_rules);
1120 deinit_stick_rules(&p->sticking_rules);
1121
Willy Tarreaua534fea2008-08-03 12:19:50 +02001122 free(p->appsession_name);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001123
1124 h = p->req_cap;
1125 while (h) {
1126 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001127 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001128 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001129 free(h);
1130 h = h_next;
1131 }/* end while(h) */
1132
1133 h = p->rsp_cap;
1134 while (h) {
1135 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001136 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001137 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001138 free(h);
1139 h = h_next;
1140 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001141
Willy Tarreaubaaee002006-06-26 02:48:02 +02001142 s = p->srv;
1143 while (s) {
1144 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001145
Willy Tarreau5b3a2022012-09-28 15:01:02 +02001146 if (s->check.task) {
1147 task_delete(s->check.task);
1148 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001149 }
Simon Hormand60d6912013-11-25 10:46:36 +09001150 if (s->agent.task) {
1151 task_delete(s->agent.task);
1152 task_free(s->agent.task);
1153 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001154
Willy Tarreau2e993902011-10-31 11:53:20 +01001155 if (s->warmup) {
1156 task_delete(s->warmup);
1157 task_free(s->warmup);
1158 }
1159
Willy Tarreaua534fea2008-08-03 12:19:50 +02001160 free(s->id);
1161 free(s->cookie);
Willy Tarreau1ae1b7b2012-09-28 15:28:30 +02001162 free(s->check.bi);
1163 free(s->check.bo);
Simon Hormand60d6912013-11-25 10:46:36 +09001164 free(s->agent.bi);
1165 free(s->agent.bo);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001166 free(s);
1167 s = s_next;
1168 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001169
Willy Tarreau4348fad2012-09-20 16:48:07 +02001170 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02001171 unbind_listener(l);
1172 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001173 LIST_DEL(&l->by_fe);
1174 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001175 free(l->name);
1176 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001177 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001178 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001179
Willy Tarreau4348fad2012-09-20 16:48:07 +02001180 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001181 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
1182#ifdef USE_OPENSSL
1183 ssl_sock_free_all_ctx(bind_conf);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001184 free(bind_conf->ca_file);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001185 free(bind_conf->ciphers);
Emeric Brun2b58d042012-09-20 17:10:03 +02001186 free(bind_conf->ecdhe);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001187 free(bind_conf->crl_file);
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001188#endif /* USE_OPENSSL */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001189 free(bind_conf->file);
1190 free(bind_conf->arg);
1191 LIST_DEL(&bind_conf->by_fe);
1192 free(bind_conf);
1193 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001194
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001195 free(p->desc);
1196 free(p->fwdfor_hdr_name);
1197
Willy Tarreauff011f22011-01-06 17:51:27 +01001198 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06001199 free_http_res_rules(&p->http_res_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02001200 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01001201
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001202 pool_destroy2(p->req_cap_pool);
1203 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09001204 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001205
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001206 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001207 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001208 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001209 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02001210
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001211 while (ua) {
1212 uap = ua;
1213 ua = ua->next;
1214
Willy Tarreaua534fea2008-08-03 12:19:50 +02001215 free(uap->uri_prefix);
1216 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001217 free(uap->node);
1218 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001219
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001220 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001221 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001222
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001223 free(uap);
1224 }
1225
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001226 userlist_free(userlist);
1227
Willy Tarreaudd815982007-10-16 12:25:14 +02001228 protocol_unbind_all();
1229
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001230 free(global.log_send_hostname); global.log_send_hostname = NULL;
Kevinm48936af2010-12-22 16:08:21 +00001231 free(global.log_tag); global.log_tag = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001232 free(global.chroot); global.chroot = NULL;
1233 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001234 free(global.node); global.node = NULL;
1235 free(global.desc); global.desc = NULL;
Godbach4cc1b0d2013-06-26 16:49:51 +08001236 free(fdinfo); fdinfo = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001237 free(fdtab); fdtab = NULL;
1238 free(oldpids); oldpids = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001239 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001240
William Lallemand0f99e342011-10-12 17:50:54 +02001241 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1242 LIST_DEL(&log->list);
1243 free(log);
1244 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001245 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1246 LIST_DEL(&wl->list);
1247 free(wl);
1248 }
1249
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001250 pool_destroy2(pool2_session);
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001251 pool_destroy2(pool2_connection);
Willy Tarreau9b28e032012-10-12 23:49:43 +02001252 pool_destroy2(pool2_buffer);
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001253 pool_destroy2(pool2_channel);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001254 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001255 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001256 pool_destroy2(pool2_capture);
Willy Tarreau63963c62007-05-13 21:29:55 +02001257 pool_destroy2(pool2_appsess);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001258 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001259 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001260 pool_destroy2(pool2_hdr_idx);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001261
1262 if (have_appsession) {
Willy Tarreau63963c62007-05-13 21:29:55 +02001263 pool_destroy2(apools.serverid);
1264 pool_destroy2(apools.sessid);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001265 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001266
1267 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001268} /* end deinit() */
1269
Willy Tarreaubb545b42010-08-25 12:58:59 +02001270/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1271 * pids the signal was correctly delivered to.
1272 */
1273static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001274{
1275 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001276 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001277 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001278 if (kill(oldpids[p], sig) == 0)
1279 ret++;
1280 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001281}
1282
Willy Tarreau918ff602011-07-25 16:33:49 +02001283/* Runs the polling loop */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001284void run_poll_loop()
1285{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001286 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001287
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001288 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001289 while (1) {
Willy Tarreau29857942009-05-10 09:01:21 +02001290 /* check if we caught some signals and process them */
1291 signal_process_queue();
1292
Willy Tarreau58b458d2008-06-29 22:40:23 +02001293 /* Check if we can expire some tasks */
1294 wake_expired_tasks(&next);
1295
1296 /* Process a few tasks */
Willy Tarreaud825eef2007-05-12 22:35:00 +02001297 process_runnable_tasks(&next);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001298
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001299 /* stop when there's nothing left to do */
1300 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001301 break;
1302
Willy Tarreau58b458d2008-06-29 22:40:23 +02001303 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001304 cur_poller.poll(&cur_poller, next);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01001305 fd_process_cached_events();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001306 }
1307}
1308
Willy Tarreaue9b26022011-08-01 20:57:55 +02001309/* This is the global management task for listeners. It enables listeners waiting
1310 * for global resources when there are enough free resource, or at least once in
1311 * a while. It is designed to be called as a task.
1312 */
1313static struct task *manage_global_listener_queue(struct task *t)
1314{
1315 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001316 /* queue is empty, nothing to do */
1317 if (LIST_ISEMPTY(&global_listener_queue))
1318 goto out;
1319
1320 /* If there are still too many concurrent connections, let's wait for
1321 * some of them to go away. We don't need to re-arm the timer because
1322 * each of them will scan the queue anyway.
1323 */
1324 if (unlikely(actconn >= global.maxconn))
1325 goto out;
1326
1327 /* We should periodically try to enable listeners waiting for a global
1328 * resource here, because it is possible, though very unlikely, that
1329 * they have been blocked by a temporary lack of global resource such
1330 * as a file descriptor or memory and that the temporary condition has
1331 * disappeared.
1332 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001333 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001334
1335 out:
1336 t->expire = next;
1337 task_queue(t);
1338 return t;
1339}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001340
Willy Tarreaubaaee002006-06-26 02:48:02 +02001341int main(int argc, char **argv)
1342{
1343 int err, retry;
1344 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001345 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02001346 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001347
Emeric Bruncf20bf12010-10-22 16:06:11 +02001348 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001349 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1350 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1351 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001352
Willy Tarreaue437c442010-03-17 18:02:46 +01001353 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1354 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1355 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001356 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001357 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001358
Willy Tarreaudc23a922011-02-16 11:10:36 +01001359 /* ulimits */
1360 if (!global.rlimit_nofile)
1361 global.rlimit_nofile = global.maxsock;
1362
1363 if (global.rlimit_nofile) {
1364 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1365 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreau29901e52016-06-21 11:48:18 +02001366 /* try to set it to the max possible at least */
1367 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau1ab23222016-06-21 11:51:59 +02001368 limit.rlim_cur = limit.rlim_max;
1369 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
1370 getrlimit(RLIMIT_NOFILE, &limit);
1371
Willy Tarreau29901e52016-06-21 11:48:18 +02001372 Warning("[%s.main()] Cannot raise FD limit to %d, limit is %d.\n", argv[0], global.rlimit_nofile, (int)limit.rlim_cur);
1373 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01001374 }
1375 }
1376
1377 if (global.rlimit_memmax) {
1378 limit.rlim_cur = limit.rlim_max =
Willy Tarreaue17eb812015-10-29 10:42:55 +01001379 global.rlimit_memmax * 1048576ULL / global.nbproc;
Willy Tarreaudc23a922011-02-16 11:10:36 +01001380#ifdef RLIMIT_AS
1381 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1382 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1383 argv[0], global.rlimit_memmax);
1384 }
1385#else
1386 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1387 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1388 argv[0], global.rlimit_memmax);
1389 }
1390#endif
1391 }
1392
Willy Tarreaubaaee002006-06-26 02:48:02 +02001393 /* We will loop at most 100 times with 10 ms delay each time.
1394 * That's at most 1 second. We only send a signal to old pids
1395 * if we cannot grab at least one port.
1396 */
1397 retry = MAX_START_RETRIES;
1398 err = ERR_NONE;
1399 while (retry >= 0) {
1400 struct timeval w;
1401 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001402 /* exit the loop on no error or fatal error */
1403 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001404 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001405 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001406 break;
1407
1408 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1409 * listening sockets. So on those platforms, it would be wiser to
1410 * simply send SIGUSR1, which will not be undoable.
1411 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001412 if (tell_old_pids(SIGTTOU) == 0) {
1413 /* no need to wait if we can't contact old pids */
1414 retry = 0;
1415 continue;
1416 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001417 /* give some time to old processes to stop listening */
1418 w.tv_sec = 0;
1419 w.tv_usec = 10*1000;
1420 select(0, NULL, NULL, NULL, &w);
1421 retry--;
1422 }
1423
1424 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001425 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001426 if (retry != MAX_START_RETRIES && nb_oldpids) {
1427 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001428 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001429 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001430 exit(1);
1431 }
1432
1433 if (listeners == 0) {
1434 Alert("[%s.main()] No enabled listener found (check the <listen> keywords) ! Exiting.\n", argv[0]);
1435 /* Note: we don't have to send anything to the old pids because we
1436 * never stopped them. */
1437 exit(1);
1438 }
1439
Emeric Bruncf20bf12010-10-22 16:06:11 +02001440 err = protocol_bind_all(errmsg, sizeof(errmsg));
1441 if ((err & ~ERR_WARN) != ERR_NONE) {
1442 if ((err & ERR_ALERT) || (err & ERR_WARN))
1443 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1444
Willy Tarreaudd815982007-10-16 12:25:14 +02001445 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1446 protocol_unbind_all(); /* cleanup everything we can */
1447 if (nb_oldpids)
1448 tell_old_pids(SIGTTIN);
1449 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001450 } else if (err & ERR_WARN) {
1451 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001452 }
1453
Willy Tarreaubaaee002006-06-26 02:48:02 +02001454 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001455 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1456 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001457
Willy Tarreaubaaee002006-06-26 02:48:02 +02001458 /* MODE_QUIET can inhibit alerts and warnings below this line */
1459
1460 global.mode &= ~MODE_STARTING;
1461 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1462 /* detach from the tty */
1463 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001464 }
1465
1466 /* open log & pid files before the chroot */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001467 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001468 unlink(global.pidfile);
1469 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1470 if (pidfd < 0) {
1471 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1472 if (nb_oldpids)
1473 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001474 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001475 exit(1);
1476 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001477 }
1478
Willy Tarreaub38651a2007-03-24 17:24:39 +01001479#ifdef CONFIG_HAP_CTTPROXY
1480 if (global.last_checks & LSTCHK_CTTPROXY) {
1481 int ret;
1482
1483 ret = check_cttproxy_version();
1484 if (ret < 0) {
1485 Alert("[%s.main()] Cannot enable cttproxy.\n%s",
1486 argv[0],
1487 (ret == -1) ? " Incorrect module version.\n"
1488 : " Make sure you have enough permissions and that the module is loaded.\n");
Willy Tarreaudd815982007-10-16 12:25:14 +02001489 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001490 exit(1);
1491 }
1492 }
1493#endif
1494
1495 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1496 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001497 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001498 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001499 exit(1);
1500 }
1501
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001502 /* If the user is not root, we'll still let him try the configuration
1503 * but we inform him that unexpected behaviour may occur.
1504 */
1505 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1506 Warning("[%s.main()] Some options which require full privileges"
1507 " might not work well.\n"
1508 "", argv[0]);
1509
Willy Tarreauf223cc02007-10-15 18:57:08 +02001510 /* chroot if needed */
1511 if (global.chroot != NULL) {
Willy Tarreau21337822012-04-29 14:11:38 +02001512 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Willy Tarreauf223cc02007-10-15 18:57:08 +02001513 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1514 if (nb_oldpids)
1515 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001516 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001517 exit(1);
1518 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02001519 }
1520
Willy Tarreaubaaee002006-06-26 02:48:02 +02001521 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001522 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001523
1524 /* Note that any error at this stage will be fatal because we will not
1525 * be able to restart the old pids.
1526 */
1527
1528 /* setgid / setuid */
Michael Schererab012dd2013-01-12 18:35:19 +01001529 if (global.gid) {
1530 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
1531 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
1532 " without 'uid'/'user' is generally useless.\n", argv[0]);
1533
1534 if (setgid(global.gid) == -1) {
1535 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
1536 protocol_unbind_all();
1537 exit(1);
1538 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001539 }
1540
1541 if (global.uid && setuid(global.uid) == -1) {
1542 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001543 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001544 exit(1);
1545 }
1546
1547 /* check ulimits */
1548 limit.rlim_cur = limit.rlim_max = 0;
1549 getrlimit(RLIMIT_NOFILE, &limit);
1550 if (limit.rlim_cur < global.maxsock) {
1551 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 +02001552 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001553 }
1554
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001555 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001556 struct proxy *px;
Willy Tarreau07d4e6d2015-05-01 19:13:41 +02001557 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001558 int ret = 0;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001559 int *children = calloc(global.nbproc, sizeof(int));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001560 int proc;
1561
1562 /* the father launches the required number of processes */
1563 for (proc = 0; proc < global.nbproc; proc++) {
1564 ret = fork();
1565 if (ret < 0) {
1566 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001567 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001568 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001569 }
1570 else if (ret == 0) /* child breaks here */
1571 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001572 children[proc] = ret;
Willy Tarreau269ab312012-09-05 08:02:48 +02001573 if (pidfd >= 0) {
1574 char pidstr[100];
1575 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01001576 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001577 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001578 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001579 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001580
1581#ifdef USE_CPU_AFFINITY
1582 if (proc < global.nbproc && /* child */
Willy Tarreaub34c00c2015-04-20 11:36:57 +02001583 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001584 global.cpu_map[proc]) /* only do this if the process has a CPU map */
1585 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1586#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001587 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02001588 if (pidfd >= 0) {
1589 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
1590 close(pidfd);
1591 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02001592
1593 /* We won't ever use this anymore */
1594 free(oldpids); oldpids = NULL;
1595 free(global.chroot); global.chroot = NULL;
1596 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001597
Willy Tarreau4ed1ae72015-05-01 17:01:08 +02001598 if (proc == global.nbproc) {
1599 if (global.mode & MODE_SYSTEMD) {
1600 protocol_unbind_all();
1601 for (proc = 0; proc < global.nbproc; proc++)
1602 while (waitpid(children[proc], NULL, 0) == -1 && errno == EINTR);
1603 }
1604 exit(0); /* parent must leave */
1605 }
1606
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001607 /* we might have to unbind some proxies from some processes */
1608 px = proxy;
1609 while (px != NULL) {
1610 if (px->bind_proc && px->state != PR_STSTOPPED) {
Willy Tarreaua9db57e2013-01-18 11:29:29 +01001611 if (!(px->bind_proc & (1UL << proc)))
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001612 stop_proxy(px);
1613 }
1614 px = px->next;
1615 }
1616
Willy Tarreau07d4e6d2015-05-01 19:13:41 +02001617 /* we might have to unbind some peers sections from some processes */
1618 for (curpeers = peers; curpeers; curpeers = curpeers->next) {
1619 if (!curpeers->peers_fe)
1620 continue;
1621
1622 if (curpeers->peers_fe->bind_proc & (1UL << proc))
1623 continue;
1624
1625 stop_proxy(curpeers->peers_fe);
1626 /* disable this peer section so that it kills itself */
1627 curpeers->peers_fe = NULL;
1628 }
1629
Dirkjan Bussink07fcaaa2014-04-28 22:57:16 +00001630 free(children);
1631 children = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001632 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
1633 * that we can detach from the TTY. We MUST NOT do it in other cases since
1634 * it would have already be done, and 0-2 would have been affected to listening
1635 * sockets
1636 */
Willy Tarreau106cb762008-11-16 07:40:34 +01001637 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001638 /* detach from the tty */
1639 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01001640 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001641 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
1642 }
1643 pid = getpid(); /* update child's pid */
1644 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02001645 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001646 }
1647
Willy Tarreaudd815982007-10-16 12:25:14 +02001648 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001649 /*
1650 * That's it : the central polling loop. Run until we stop.
1651 */
1652 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001653
1654 /* Free all Hash Keys and all Hash elements */
1655 appsession_cleanup();
1656 /* Do some cleanup */
1657 deinit();
1658
1659 exit(0);
1660}
1661
1662
1663/*
1664 * Local variables:
1665 * c-indent-level: 8
1666 * c-basic-offset: 8
1667 * End:
1668 */