blob: 233c434b46cb7c2c2997501f47e1cd65bb45a040 [file] [log] [blame]
Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau1a34d572014-02-03 00:41:29 +01003 * Copyright 2000-2014 Willy Tarreau <w@1wt.eu>.
Willy Tarreaubaaee002006-06-26 02:48:02 +02004 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 *
10 * Please refer to RFC2068 or RFC2616 for informations about HTTP protocol, and
11 * RFC2965 for informations about cookies usage. More generally, the IETF HTTP
12 * Working Group's web site should be consulted for protocol related changes :
13 *
14 * http://ftp.ics.uci.edu/pub/ietf/http/
15 *
16 * Pending bugs (may be not fixed because never reproduced) :
17 * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes
18 * the proxy to terminate (no core) if the client breaks the connection during
19 * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to
20 * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be
21 * related to missing setsid() (fixed in 1.1.15)
22 * - a proxy with an invalid config will prevent the startup even if disabled.
23 *
24 * ChangeLog has moved to the CHANGELOG file.
25 *
Willy Tarreaubaaee002006-06-26 02:48:02 +020026 */
27
28#include <stdio.h>
29#include <stdlib.h>
30#include <unistd.h>
31#include <string.h>
32#include <ctype.h>
33#include <sys/time.h>
34#include <sys/types.h>
35#include <sys/socket.h>
36#include <netinet/tcp.h>
37#include <netinet/in.h>
38#include <arpa/inet.h>
39#include <netdb.h>
40#include <fcntl.h>
41#include <errno.h>
42#include <signal.h>
43#include <stdarg.h>
44#include <sys/resource.h>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010045#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020046#include <time.h>
47#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010048#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010049#ifdef USE_CPU_AFFINITY
50#define __USE_GNU
51#include <sched.h>
52#undef __USE_GNU
53#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020054
55#ifdef DEBUG_FULL
56#include <assert.h>
57#endif
58
Willy Tarreau2dd0d472006-06-29 17:53:05 +020059#include <common/appsession.h>
60#include <common/base64.h>
61#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020062#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020063#include <common/compat.h>
64#include <common/config.h>
65#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010066#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020067#include <common/memory.h>
68#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010069#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020070#include <common/regex.h>
71#include <common/standard.h>
72#include <common/time.h>
73#include <common/uri_auth.h>
74#include <common/version.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020075
76#include <types/capture.h>
77#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090078#include <types/proto_tcp.h>
79#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020080#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020081
Willy Tarreau0fc45a72007-06-17 00:36:03 +020082#include <proto/acl.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020083#include <proto/applet.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020084#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020085#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020086#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020087#include <proto/channel.h>
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +020088#include <proto/checks.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +020089#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020090#include <proto/fd.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +020091#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +010092#include <proto/hlua.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020093#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020094#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +010095#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020096#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +010097#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020098#include <proto/proxy.h>
99#include <proto/queue.h>
100#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200101#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200102#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200103#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200104#include <proto/task.h>
105
Willy Tarreaub38651a2007-03-24 17:24:39 +0100106#ifdef CONFIG_HAP_CTTPROXY
107#include <proto/cttproxy.h>
108#endif
109
Emeric Brunfc0421f2012-09-07 17:30:07 +0200110#ifdef USE_OPENSSL
111#include <proto/ssl_sock.h>
112#endif
113
Willy Tarreaubaaee002006-06-26 02:48:02 +0200114/*********************************************************************/
115
Cyril Bonté6162c432012-11-10 19:27:47 +0100116extern const struct comp_algo comp_algos[];
117
Willy Tarreaubaaee002006-06-26 02:48:02 +0200118/*********************************************************************/
119
Willy Tarreau477ecd82010-01-03 21:12:30 +0100120/* list of config files */
121static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200122int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100123int relative_pid = 1; /* process id starting at 1 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200124
125/* global options */
126struct global global = {
Willy Tarreau247a13a2012-11-15 17:38:15 +0100127 .nbproc = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200128 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200129 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100130#ifdef DEFAULT_MAXZLIBMEM
Willy Tarreau5a940372012-12-03 12:10:45 +0100131 .maxzlibmem = DEFAULT_MAXZLIBMEM * 1024U * 1024U,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100132#else
William Lallemand9d5f5482012-11-07 16:12:57 +0100133 .maxzlibmem = 0,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100134#endif
William Lallemandd85f9172012-11-09 17:05:39 +0100135 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100136 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200137 .unix_bind = {
138 .ux = {
139 .uid = -1,
140 .gid = -1,
141 .mode = 0,
142 }
143 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200144 .tune = {
145 .bufsize = BUFSIZE,
146 .maxrewrite = MAXREWRITE,
Willy Tarreau43961d52010-10-04 20:39:20 +0200147 .chksize = BUFSIZE,
Willy Tarreaua24adf02014-11-27 01:11:56 +0100148 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200149 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200150#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100151 .sslcachesize = SSLCACHESIZE,
Remi Gacognef46cd6e2014-06-12 14:58:40 +0200152 .ssl_default_dh_param = SSL_DEFAULT_DH_PARAM,
Willy Tarreau03effc12014-02-12 14:55:41 +0100153#ifdef DEFAULT_SSL_MAX_RECORD
154 .ssl_max_record = DEFAULT_SSL_MAX_RECORD,
155#endif
Emeric Brunfc32aca2012-09-03 12:10:29 +0200156#endif
William Lallemanda509e4c2012-11-07 16:54:34 +0100157#ifdef USE_ZLIB
158 .zlibmemlevel = 8,
159 .zlibwindowsize = MAX_WBITS,
160#endif
William Lallemandf3747832012-11-09 12:33:10 +0100161 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100162#ifdef DEFAULT_IDLE_TIMER
163 .idle_timer = DEFAULT_IDLE_TIMER,
164#else
165 .idle_timer = 1000, /* 1 second */
166#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200167 },
Emeric Brun76d88952012-10-05 15:47:31 +0200168#ifdef USE_OPENSSL
169#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200170 .maxsslconn = DEFAULT_MAXSSLCONN,
171#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200172#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200173 /* others NULL OK */
174};
175
176/*********************************************************************/
177
178int stopping; /* non zero means stopping in progress */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200179int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200180
181/* Here we store informations about the pids of the processes we may pause
182 * or kill. We will send them a signal every 10 ms until we can bind to all
183 * our ports. With 200 retries, that's about 2 seconds.
184 */
185#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200186static int *oldpids = NULL;
187static int oldpids_sig; /* use USR1 or TERM */
188
189/* this is used to drain data, and as a temporary buffer for sprintf()... */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100190struct chunk trash = { };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200191
Willy Tarreau8096de92010-02-26 11:12:27 +0100192/* this buffer is always the same size as standard buffers and is used for
193 * swapping data inside a buffer.
194 */
195char *swap_buffer = NULL;
196
Willy Tarreaubb545b42010-08-25 12:58:59 +0200197int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200198const int zero = 0;
199const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200200const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200201
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100202char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200203char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200204
Willy Tarreau89efaed2013-12-13 15:14:55 +0100205/* used from everywhere just to drain results we don't want to read and which
206 * recent versions of gcc increasingly and annoyingly complain about.
207 */
208int shut_your_big_mouth_gcc_int = 0;
209
Willy Tarreau08ceb102011-07-24 22:58:00 +0200210/* list of the temporarily limited listeners because of lack of resource */
211struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200212struct task *global_listener_queue_task;
213static struct task *manage_global_listener_queue(struct task *t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200214
Willy Tarreauff055502014-04-28 22:27:06 +0200215/* bitfield of a few warnings to emit just once (WARN_*) */
216unsigned int warned = 0;
217
Willy Tarreaubaaee002006-06-26 02:48:02 +0200218/*********************************************************************/
219/* general purpose functions ***************************************/
220/*********************************************************************/
221
222void display_version()
223{
224 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreau8747b6d2015-03-11 23:57:23 +0100225 printf("Copyright 2000-2015 Willy Tarreau <w@1wt.eu>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200226}
227
Willy Tarreau7b066db2007-12-02 11:28:59 +0100228void display_build_opts()
229{
230 printf("Build options :"
231#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100232 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100233#endif
234#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100235 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100236#endif
237#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100238 "\n CC = " BUILD_CC
239#endif
240#ifdef BUILD_CFLAGS
241 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100242#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100243#ifdef BUILD_OPTIONS
244 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100245#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200246 "\n\nDefault settings :"
247 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
248 "\n\n",
249 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200250
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100251 printf("Encrypted password support via crypt(3): "
252#ifdef CONFIG_HAP_CRYPT
253 "yes"
254#else
255 "no"
256#endif
257 "\n");
258
Cyril Bonté6162c432012-11-10 19:27:47 +0100259#ifdef USE_ZLIB
260 printf("Built with zlib version : " ZLIB_VERSION "\n");
261#else /* USE_ZLIB */
262 printf("Built without zlib support (USE_ZLIB not set)\n");
263#endif
264 printf("Compression algorithms supported :");
265 {
266 int i;
267
Willy Tarreau615105e2015-03-28 16:40:46 +0100268 for (i = 0; comp_algos[i].cfg_name; i++) {
269 printf("%s %s(\"%s\")", (i == 0 ? "" : ","), comp_algos[i].cfg_name, comp_algos[i].ua_name);
Cyril Bonté6162c432012-11-10 19:27:47 +0100270 }
271 if (i == 0) {
272 printf("none");
273 }
274 }
275 printf("\n");
276
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200277#ifdef USE_OPENSSL
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200278 printf("Built with OpenSSL version : "
279#ifdef OPENSSL_IS_BORINGSSL
280 "BoringSSL\n");
281#else /* OPENSSL_IS_BORINGSSL */
282 OPENSSL_VERSION_TEXT "\n");
Willy Tarreau0cff0db2013-04-26 18:16:13 +0200283 printf("Running on OpenSSL version : %s%s\n",
284 SSLeay_version(SSLEAY_VERSION),
285 ((OPENSSL_VERSION_NUMBER ^ SSLeay()) >> 8) ? " (VERSIONS DIFFER!)" : "");
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200286#endif
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200287 printf("OpenSSL library supports TLS extensions : "
288#if OPENSSL_VERSION_NUMBER < 0x00907000L
289 "no (library version too old)"
290#elif defined(OPENSSL_NO_TLSEXT)
291 "no (disabled via OPENSSL_NO_TLSEXT)"
292#else
293 "yes"
294#endif
295 "\n");
296 printf("OpenSSL library supports SNI : "
297#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
298 "yes"
299#else
300#ifdef OPENSSL_NO_TLSEXT
301 "no (because of OPENSSL_NO_TLSEXT)"
302#else
303 "no (version might be too old, 0.9.8f min needed)"
304#endif
305#endif
306 "\n");
307 printf("OpenSSL library supports prefer-server-ciphers : "
308#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
309 "yes"
310#else
311 "no (0.9.7 or later needed)"
312#endif
313 "\n");
314#else /* USE_OPENSSL */
315 printf("Built without OpenSSL support (USE_OPENSSL not set)\n");
316#endif
Lukas Tribusea68d362013-04-04 12:24:16 +0200317
318#ifdef USE_PCRE
319 printf("Built with PCRE version : %s", pcre_version());
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200320 printf("\nPCRE library supports JIT : ");
321#ifdef USE_PCRE_JIT
322 {
323 int r;
324 pcre_config(PCRE_CONFIG_JIT, &r);
325 if (r)
326 printf("yes");
327 else
328 printf("no (libpcre build without JIT?)");
329 }
Lukas Tribusea68d362013-04-04 12:24:16 +0200330#else
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200331 printf("no (USE_PCRE_JIT not set)");
Lukas Tribusea68d362013-04-04 12:24:16 +0200332#endif
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200333 printf("\n");
Lukas Tribusea68d362013-04-04 12:24:16 +0200334#else
335 printf("Built without PCRE support (using libc's regex instead)\n");
336#endif
337
Cyril Bonté47eb2192015-03-02 00:08:39 +0100338#ifdef USE_LUA
339 printf("Built with Lua version : %s\n", LUA_RELEASE);
340#else
341 printf("Built without Lua support\n");
342#endif
343
Pieter Baauwd551fb52013-05-08 22:49:23 +0200344#if defined(CONFIG_HAP_TRANSPARENT) || defined(CONFIG_HAP_CTTPROXY)
345 printf("Built with transparent proxy support using:"
346#if defined(CONFIG_HAP_CTTPROXY)
347 " CTTPROXY"
348#endif
349#if defined(IP_TRANSPARENT)
350 " IP_TRANSPARENT"
351#endif
352#if defined(IPV6_TRANSPARENT)
353 " IPV6_TRANSPARENT"
354#endif
355#if defined(IP_FREEBIND)
356 " IP_FREEBIND"
357#endif
Pieter Baauwff30b662013-05-08 23:22:39 +0200358#if defined(IP_BINDANY)
359 " IP_BINDANY"
360#endif
361#if defined(IPV6_BINDANY)
362 " IPV6_BINDANY"
363#endif
Pieter Baauw1eb75922013-05-08 23:30:23 +0200364#if defined(SO_BINDANY)
365 " SO_BINDANY"
366#endif
Pieter Baauwd551fb52013-05-08 22:49:23 +0200367 "\n");
368#endif
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100369
370#if defined(CONFIG_HAP_NS)
371 printf("Built with network namespace support\n");
372#endif
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100373 putchar('\n');
374
Willy Tarreaube5b6852009-10-03 18:57:08 +0200375 list_pollers(stdout);
376 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100377}
378
Willy Tarreaubaaee002006-06-26 02:48:02 +0200379/*
380 * This function prints the command line usage and exits
381 */
382void usage(char *name)
383{
384 display_version();
385 fprintf(stderr,
Willy Tarreau5d01a632009-06-22 16:02:30 +0200386 "Usage : %s [-f <cfgfile>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200387 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200388 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100389 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200390 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200391 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200392 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200393 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200394 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200395 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200396 " -n sets the maximum total # of connections (%d)\n"
397 " -m limits the usable amount of memory (in MB)\n"
398 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200399 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200400 " -p writes pids of all children to this file\n"
401#if defined(ENABLE_EPOLL)
402 " -de disables epoll() usage even when available\n"
403#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200404#if defined(ENABLE_KQUEUE)
405 " -dk disables kqueue() usage even when available\n"
406#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200407#if defined(ENABLE_POLL)
408 " -dp disables poll() usage even when available\n"
409#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200410#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100411 " -dS disables splice usage (broken on old kernels)\n"
412#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200413#if defined(USE_GETADDRINFO)
414 " -dG disables getaddrinfo() usage\n"
415#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100416 " -dV disables SSL verify on servers side\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200417 " -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.\n"
418 "\n",
419 name, DEFAULT_MAXCONN, cfg_maxpconn);
420 exit(1);
421}
422
423
424
425/*********************************************************************/
426/* more specific functions ***************************************/
427/*********************************************************************/
428
429/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200430 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
431 * a signal zero to all subscribers. This means that it's as easy as
432 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200433 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200434void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200435{
436 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200437 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200438 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200439}
440
441/*
442 * upon SIGTTOU, we pause everything
443 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200444void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200445{
446 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200447 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200448}
449
450/*
451 * upon SIGTTIN, let's have a soft stop.
452 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200453void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200454{
Willy Tarreaube58c382011-07-24 18:28:10 +0200455 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200456}
457
458/*
459 * this function dumps every server's state when the process receives SIGHUP.
460 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200461void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200462{
463 struct proxy *p = proxy;
464
465 Warning("SIGHUP received, dumping servers states.\n");
466 while (p) {
467 struct server *s = p->srv;
468
469 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
470 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100471 chunk_printf(&trash,
472 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
473 p->id, s->id,
Willy Tarreau892337c2014-05-13 23:41:20 +0200474 (s->state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100475 s->cur_sess, s->nbpend, s->counters.cum_sess);
476 Warning("%s\n", trash.str);
477 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200478 s = s->next;
479 }
480
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200481 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
482 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100483 chunk_printf(&trash,
484 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
485 p->id,
486 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 +0200487 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100488 chunk_printf(&trash,
489 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
490 p->id,
491 (p->srv_bck) ? "is running on backup servers" : "has no server available",
492 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 +0200493 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100494 chunk_printf(&trash,
495 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
496 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
497 p->id, p->srv_act, p->srv_bck,
498 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 +0200499 }
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100500 Warning("%s\n", trash.str);
501 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200502
503 p = p->next;
504 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200505}
506
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200507void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200508{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200509 /* dump memory usage then free everything possible */
510 dump_pools();
511 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200512}
513
Willy Tarreaubaaee002006-06-26 02:48:02 +0200514/*
515 * This function initializes all the necessary variables. It only returns
516 * if everything is OK. If something fails, it exits.
517 */
518void init(int argc, char **argv)
519{
Willy Tarreaubaaee002006-06-26 02:48:02 +0200520 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200521 char *tmp;
522 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200523 int err_code = 0;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100524 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000525 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200526 char *change_dir = NULL;
Yuxans Yao4e25b012012-10-19 10:36:09 +0800527 struct tm curtime;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200528
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100529 chunk_init(&trash, malloc(global.tune.bufsize), global.tune.bufsize);
Willy Tarreau2819e992013-12-13 14:41:10 +0100530 alloc_trash_buffers(global.tune.bufsize);
David du Colombier7af46052012-05-16 14:16:48 +0200531
Emeric Brun2b920a12010-09-23 18:30:22 +0200532 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
533 * the string in case of truncation, and at least FreeBSD appears not to do
534 * it.
535 */
536 memset(hostname, 0, sizeof(hostname));
537 gethostname(hostname, sizeof(hostname) - 1);
538 memset(localpeer, 0, sizeof(localpeer));
539 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
540
Willy Tarreaubaaee002006-06-26 02:48:02 +0200541 /*
542 * Initialize the previously static variables.
543 */
544
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100545 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200546
547
548#ifdef HAPROXY_MEMMAX
549 global.rlimit_memmax = HAPROXY_MEMMAX;
550#endif
551
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200552 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200553 start_date = now;
554
Willy Tarreau84310e22014-02-14 11:59:04 +0100555 srandom(now_ms - getpid());
556
Yuxans Yao4e25b012012-10-19 10:36:09 +0800557 /* Get the numeric timezone. */
558 get_localtime(start_date.tv_sec, &curtime);
559 strftime(localtimezone, 6, "%z", &curtime);
560
Willy Tarreau29857942009-05-10 09:01:21 +0200561 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100562 if (init_acl() != 0)
563 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200564 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +0200565 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200566 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200567 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +0200568 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200569 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100570 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200571
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100572 /* Initialise lua. */
573 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100574
Willy Tarreau43b78992009-01-25 15:42:27 +0100575 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200576#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100577 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200578#endif
579#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100580 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200581#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200582#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100583 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200584#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200585#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100586 global.tune.options |= GTUNE_USE_SPLICE;
587#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200588#if defined(USE_GETADDRINFO)
589 global.tune.options |= GTUNE_USE_GAI;
590#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200591
592 pid = getpid();
593 progname = *argv;
594 while ((tmp = strchr(progname, '/')) != NULL)
595 progname = tmp + 1;
596
Kevinm48936af2010-12-22 16:08:21 +0000597 /* the process name is used for the logs only */
598 global.log_tag = strdup(progname);
599
Willy Tarreaubaaee002006-06-26 02:48:02 +0200600 argc--; argv++;
601 while (argc > 0) {
602 char *flag;
603
604 if (**argv == '-') {
605 flag = *argv+1;
606
607 /* 1 arg */
608 if (*flag == 'v') {
609 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100610 if (flag[1] == 'v') /* -vv */
611 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200612 exit(0);
613 }
614#if defined(ENABLE_EPOLL)
615 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100616 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200617#endif
618#if defined(ENABLE_POLL)
619 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100620 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200621#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200622#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200623 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100624 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200625#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200626#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100627 else if (*flag == 'd' && flag[1] == 'S')
628 global.tune.options &= ~GTUNE_USE_SPLICE;
629#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200630#if defined(USE_GETADDRINFO)
631 else if (*flag == 'd' && flag[1] == 'G')
632 global.tune.options &= ~GTUNE_USE_GAI;
633#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100634 else if (*flag == 'd' && flag[1] == 'V')
635 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200636 else if (*flag == 'V')
637 arg_mode |= MODE_VERBOSE;
638 else if (*flag == 'd' && flag[1] == 'b')
639 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +0200640 else if (*flag == 'd' && flag[1] == 'M')
641 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreaubaaee002006-06-26 02:48:02 +0200642 else if (*flag == 'd')
643 arg_mode |= MODE_DEBUG;
644 else if (*flag == 'c')
645 arg_mode |= MODE_CHECK;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100646 else if (*flag == 'D') {
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200647 arg_mode |= MODE_DAEMON;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100648 if (flag[1] == 's') /* -Ds */
649 arg_mode |= MODE_SYSTEMD;
650 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200651 else if (*flag == 'q')
652 arg_mode |= MODE_QUIET;
653 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
654 /* list of pids to finish ('f') or terminate ('t') */
655
656 if (flag[1] == 'f')
657 oldpids_sig = SIGUSR1; /* finish then exit */
658 else
659 oldpids_sig = SIGTERM; /* terminate immediately */
660 argv++; argc--;
661
662 if (argc > 0) {
663 oldpids = calloc(argc, sizeof(int));
664 while (argc > 0) {
665 oldpids[nb_oldpids] = atol(*argv);
666 if (oldpids[nb_oldpids] <= 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200667 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200668 argc--; argv++;
669 nb_oldpids++;
670 }
671 }
672 }
673 else { /* >=2 args */
674 argv++; argc--;
675 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200676 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200677
678 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200679 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200680 case 'n' : cfg_maxconn = atol(*argv); break;
681 case 'm' : global.rlimit_memmax = atol(*argv); break;
682 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200683 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200684 case 'f' :
Willy Tarreau477ecd82010-01-03 21:12:30 +0100685 wl = (struct wordlist *)calloc(1, sizeof(*wl));
686 if (!wl) {
687 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200688 exit(1);
689 }
Willy Tarreau477ecd82010-01-03 21:12:30 +0100690 wl->s = *argv;
691 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200692 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200693 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200694 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200695 }
696 }
697 }
698 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200699 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200700 argv++; argc--;
701 }
702
703 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100704 (arg_mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_FOREGROUND | MODE_VERBOSE
Willy Tarreaubaaee002006-06-26 02:48:02 +0200705 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
706
Willy Tarreau477ecd82010-01-03 21:12:30 +0100707 if (LIST_ISEMPTY(&cfg_cfgfiles))
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200708 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200709
Willy Tarreau576132e2011-09-10 19:26:56 +0200710 if (change_dir && chdir(change_dir) < 0) {
711 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
712 exit(1);
713 }
714
Willy Tarreaubaaee002006-06-26 02:48:02 +0200715 have_appsession = 0;
716 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200717
718 init_default_instance();
719
Willy Tarreau477ecd82010-01-03 21:12:30 +0100720 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100721 int ret;
722
Willy Tarreau477ecd82010-01-03 21:12:30 +0100723 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100724 if (ret == -1) {
725 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100726 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100727 exit(1);
728 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100729 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100730 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100731 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200732 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200733 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200734 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200735
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100736 pattern_finalize_config();
737
Willy Tarreaubb925012009-07-23 13:36:36 +0200738 err_code |= check_config_validity();
739 if (err_code & (ERR_ABORT|ERR_FATAL)) {
740 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200741 exit(1);
742 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200743
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100744#ifdef CONFIG_HAP_NS
745 err_code |= netns_init();
746 if (err_code & (ERR_ABORT|ERR_FATAL)) {
747 Alert("Failed to initialize namespace support.\n");
748 exit(1);
749 }
750#endif
751
Willy Tarreaubaaee002006-06-26 02:48:02 +0200752 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100753 struct peers *pr;
754 struct proxy *px;
755
756 for (pr = peers; pr; pr = pr->next)
757 if (pr->peers_fe)
758 break;
759
760 for (px = proxy; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +0200761 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100762 break;
763
764 if (pr || px) {
765 /* At least one peer or one listener has been found */
766 qfprintf(stdout, "Configuration file is valid\n");
767 exit(0);
768 }
769 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
770 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200771 }
772
Willy Tarreaue9b26022011-08-01 20:57:55 +0200773 global_listener_queue_task = task_new();
774 if (!global_listener_queue_task) {
775 Alert("Out of memory when initializing global task\n");
776 exit(1);
777 }
778 /* very simple initialization, users will queue the task if needed */
779 global_listener_queue_task->context = NULL; /* not even a context! */
780 global_listener_queue_task->process = manage_global_listener_queue;
781 global_listener_queue_task->expire = TICK_ETERNITY;
782
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200783 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200784 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +0200785
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200786 if (have_appsession)
787 appsession_init();
788
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200789 if (start_checks() < 0)
790 exit(1);
791
Willy Tarreaubaaee002006-06-26 02:48:02 +0200792 if (cfg_maxconn > 0)
793 global.maxconn = cfg_maxconn;
794
795 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200796 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200797 global.pidfile = strdup(cfg_pidfile);
798 }
799
Willy Tarreaud0256482015-01-15 21:45:22 +0100800 /* Now we want to compute the maxconn and possibly maxsslconn values.
801 * It's a bit tricky. If memmax is not set, maxconn defaults to
802 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
803 *
804 * If memmax is set, then it depends on which values are set. If
805 * maxsslconn is set, we use memmax to determine how many cleartext
806 * connections may be added, and set maxconn to the sum of the two.
807 * If maxconn is set and not maxsslconn, maxsslconn is computed from
808 * the remaining amount of memory between memmax and the cleartext
809 * connections. If neither are set, then it is considered that all
810 * connections are SSL-capable, and maxconn is computed based on this,
811 * then maxsslconn accordingly. We need to know if SSL is used on the
812 * frontends, backends, or both, because when it's used on both sides,
813 * we need twice the value for maxsslconn, but we only count the
814 * handshake once since it is not performed on the two sides at the
815 * same time (frontend-side is terminated before backend-side begins).
816 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +0100817 * ssl_handshake_cost during its initialization. In any case, if
818 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
819 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +0100820 */
821 if (!global.rlimit_memmax) {
822 if (global.maxconn == 0) {
823 global.maxconn = DEFAULT_MAXCONN;
824 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
825 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
826 }
827 }
828#ifdef USE_OPENSSL
829 else if (!global.maxconn && !global.maxsslconn &&
830 (global.ssl_used_frontend || global.ssl_used_backend)) {
831 /* memmax is set, compute everything automatically. Here we want
832 * to ensure that all SSL connections will be served. We take
833 * care of the number of sides where SSL is used, and consider
834 * the worst case : SSL used on both sides and doing a handshake
835 * simultaneously. Note that we can't have more than maxconn
836 * handshakes at a time by definition, so for the worst case of
837 * two SSL conns per connection, we count a single handshake.
838 */
839 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
840 int64_t mem = global.rlimit_memmax * 1048576ULL;
841
842 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
843 mem -= global.maxzlibmem;
844 mem = mem * MEM_USABLE_RATIO;
845
846 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +0200847 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +0100848 sides * global.ssl_session_max_cost + // SSL buffers, one per side
849 global.ssl_handshake_max_cost); // 1 handshake per connection max
850
851 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +0100852#ifdef SYSTEM_MAXCONN
853 if (global.maxconn > DEFAULT_MAXCONN)
854 global.maxconn = DEFAULT_MAXCONN;
855#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +0100856 global.maxsslconn = sides * global.maxconn;
857 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
858 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
859 global.maxconn, global.maxsslconn);
860 }
861 else if (!global.maxsslconn &&
862 (global.ssl_used_frontend || global.ssl_used_backend)) {
863 /* memmax and maxconn are known, compute maxsslconn automatically.
864 * maxsslconn being forced, we don't know how many of it will be
865 * on each side if both sides are being used. The worst case is
866 * when all connections use only one SSL instance because
867 * handshakes may be on two sides at the same time.
868 */
869 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
870 int64_t mem = global.rlimit_memmax * 1048576ULL;
871 int64_t sslmem;
872
873 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
874 mem -= global.maxzlibmem;
875 mem = mem * MEM_USABLE_RATIO;
876
Willy Tarreau87b09662015-04-03 00:22:06 +0200877 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +0100878 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
879 global.maxsslconn = round_2dig(global.maxsslconn);
880
881 if (sslmem <= 0 || global.maxsslconn < sides) {
882 Alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
883 "high for the global.memmax value (%d MB). The absolute maximum possible value "
884 "without SSL is %d, but %d was found and SSL is in use.\n",
885 global.rlimit_memmax,
Willy Tarreau87b09662015-04-03 00:22:06 +0200886 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
Willy Tarreaud0256482015-01-15 21:45:22 +0100887 global.maxconn);
888 exit(1);
889 }
890
891 if (global.maxsslconn > sides * global.maxconn)
892 global.maxsslconn = sides * global.maxconn;
893
894 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
895 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
896 }
897#endif
898 else if (!global.maxconn) {
899 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
900 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
901 int64_t mem = global.rlimit_memmax * 1048576ULL;
902 int64_t clearmem;
903
904 if (global.ssl_used_frontend || global.ssl_used_backend)
905 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
906
907 mem -= global.maxzlibmem;
908 mem = mem * MEM_USABLE_RATIO;
909
910 clearmem = mem;
911 if (sides)
912 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
913
Willy Tarreau87b09662015-04-03 00:22:06 +0200914 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +0100915 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +0100916#ifdef SYSTEM_MAXCONN
917 if (global.maxconn > DEFAULT_MAXCONN)
918 global.maxconn = DEFAULT_MAXCONN;
919#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +0100920
921 if (clearmem <= 0 || !global.maxconn) {
922 Alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
923 "high for the global.memmax value (%d MB). The absolute maximum possible value "
924 "is %d, but %d was found.\n",
925 global.rlimit_memmax,
926 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
927 global.maxsslconn);
928 exit(1);
929 }
930
931 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
932 if (sides && global.maxsslconn > sides * global.maxconn) {
933 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
934 "to be limited to %d. Better reduce global.maxsslconn to get more "
935 "room for extra connections.\n", global.maxsslconn, global.maxconn);
936 }
937 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
938 }
939 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200940
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100941 if (!global.maxpipes) {
942 /* maxpipes not specified. Count how many frontends and backends
943 * may be using splicing, and bound that to maxconn.
944 */
945 struct proxy *cur;
946 int nbfe = 0, nbbe = 0;
947
948 for (cur = proxy; cur; cur = cur->next) {
949 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
950 if (cur->cap & PR_CAP_FE)
951 nbfe += cur->maxconn;
952 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +0100953 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100954 }
955 }
956 global.maxpipes = MAX(nbfe, nbbe);
957 if (global.maxpipes > global.maxconn)
958 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +0100959 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100960 }
961
962
Willy Tarreauabacc2c2011-09-07 14:26:33 +0200963 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200964 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +0100965 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200966
Willy Tarreau3c63fd82011-09-07 18:00:47 +0200967 if (global.stats_fe)
968 global.maxsock += global.stats_fe->maxconn;
969
970 if (peers) {
971 /* peers also need to bypass global maxconn */
972 struct peers *p = peers;
973
974 for (p = peers; p; p = p->next)
975 if (p->peers_fe)
976 global.maxsock += p->peers_fe->maxconn;
977 }
978
Willy Tarreau1db37712007-06-03 17:16:49 +0200979 if (global.tune.maxpollevents <= 0)
980 global.tune.maxpollevents = MAX_POLL_EVENTS;
981
Willy Tarreau6f4a82c2009-03-21 20:43:57 +0100982 if (global.tune.recv_enough == 0)
983 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
984
Willy Tarreau27a674e2009-08-17 07:23:33 +0200985 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
986 global.tune.maxrewrite = global.tune.bufsize / 2;
987
Willy Tarreaubaaee002006-06-26 02:48:02 +0200988 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
989 /* command line debug mode inhibits configuration mode */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100990 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200991 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
992 }
993
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100994 if (arg_mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200995 /* command line daemon mode inhibits foreground and debug modes mode */
996 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100997 global.mode |= (arg_mode & (MODE_DAEMON | MODE_SYSTEMD));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200998 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200999
1000 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001001
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001002 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET))) {
1003 Warning("<debug> mode incompatible with <quiet>, <daemon> and <systemd>. Keeping <debug> only.\n");
1004 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001005 }
1006
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001007 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_SYSTEMD))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001008 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
1009 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
1010 global.nbproc = 1;
1011 }
1012
1013 if (global.nbproc < 1)
1014 global.nbproc = 1;
1015
Willy Tarreau8096de92010-02-26 11:12:27 +01001016 swap_buffer = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau7e2c6472012-10-29 20:44:36 +01001017 get_http_auth_buff = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau07115412012-10-29 21:56:59 +01001018 static_table_key = calloc(1, sizeof(*static_table_key) + global.tune.bufsize);
Willy Tarreau8096de92010-02-26 11:12:27 +01001019
Willy Tarreau8d5d77e2009-10-18 07:25:52 +02001020 fdinfo = (struct fdinfo *)calloc(1,
1021 sizeof(struct fdinfo) * (global.maxsock));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001022 fdtab = (struct fdtab *)calloc(1,
1023 sizeof(struct fdtab) * (global.maxsock));
Willy Tarreauef1d1f82007-04-16 00:25:25 +02001024 /*
1025 * Note: we could register external pollers here.
1026 * Built-in pollers have been registered before main().
1027 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001028
Willy Tarreau43b78992009-01-25 15:42:27 +01001029 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001030 disable_poller("kqueue");
1031
Willy Tarreau43b78992009-01-25 15:42:27 +01001032 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001033 disable_poller("epoll");
1034
Willy Tarreau43b78992009-01-25 15:42:27 +01001035 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001036 disable_poller("poll");
1037
Willy Tarreau43b78992009-01-25 15:42:27 +01001038 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001039 disable_poller("select");
1040
1041 /* Note: we could disable any poller by name here */
1042
Willy Tarreau2ff76222007-04-09 19:29:56 +02001043 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1044 list_pollers(stderr);
1045
Willy Tarreau4f60f162007-04-08 16:39:58 +02001046 if (!init_pollers()) {
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001047 Alert("No polling mechanism available.\n"
1048 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
1049 " is too low on this platform to support maxconn and the number of listeners\n"
1050 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
1051 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
Prach Pongpanichb837e682013-05-14 20:56:28 +02001052 " global maxconn setting to accommodate the system's limitation. For reference,\n"
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001053 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
1054 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
1055 " check build settings using 'haproxy -vv'.\n\n",
1056 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001057 exit(1);
1058 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001059 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1060 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001061 }
1062
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001063 if (!global.node)
1064 global.node = strdup(hostname);
1065
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01001066 if (!hlua_post_init())
1067 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001068}
1069
Simon Horman6fb82592011-07-15 13:14:11 +09001070static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09001071{
Simon Hormanac821422011-07-15 13:14:09 +09001072 struct acl_term_suite *suite, *suiteb;
1073 struct acl_term *term, *termb;
1074
Simon Horman6fb82592011-07-15 13:14:11 +09001075 if (!cond)
1076 return;
1077
1078 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
1079 list_for_each_entry_safe(term, termb, &suite->terms, list) {
1080 LIST_DEL(&term->list);
1081 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09001082 }
Simon Horman6fb82592011-07-15 13:14:11 +09001083 LIST_DEL(&suite->list);
1084 free(suite);
1085 }
1086
1087 free(cond);
1088}
1089
1090static void deinit_tcp_rules(struct list *rules)
1091{
1092 struct tcp_rule *trule, *truleb;
1093
1094 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09001095 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09001096 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09001097 free(trule);
1098 }
1099}
1100
Willy Tarreau12785782012-04-27 21:37:17 +02001101static void deinit_sample_arg(struct arg *p)
Simon Horman6fb82592011-07-15 13:14:11 +09001102{
Willy Tarreauf9954102012-04-20 14:03:29 +02001103 struct arg *p_back = p;
1104
Simon Horman6fb82592011-07-15 13:14:11 +09001105 if (!p)
1106 return;
1107
Willy Tarreauf9954102012-04-20 14:03:29 +02001108 while (p->type != ARGT_STOP) {
Willy Tarreau496aa012012-06-01 10:38:29 +02001109 if (p->type == ARGT_STR || p->unresolved) {
Willy Tarreauf9954102012-04-20 14:03:29 +02001110 free(p->data.str.str);
1111 p->data.str.str = NULL;
Willy Tarreau496aa012012-06-01 10:38:29 +02001112 p->unresolved = 0;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001113 }
Willy Tarreau46947782015-01-19 19:00:58 +01001114 else if (p->type == ARGT_REG) {
1115 if (p->data.reg) {
1116 regex_free(p->data.reg);
1117 free(p->data.reg);
1118 p->data.reg = NULL;
1119 }
1120 }
Willy Tarreauf9954102012-04-20 14:03:29 +02001121 p++;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001122 }
Simon Horman6fb82592011-07-15 13:14:11 +09001123
Willy Tarreau2e845be2012-10-19 19:49:09 +02001124 if (p_back != empty_arg_list)
1125 free(p_back);
Simon Horman6fb82592011-07-15 13:14:11 +09001126}
1127
1128static void deinit_stick_rules(struct list *rules)
1129{
1130 struct sticking_rule *rule, *ruleb;
1131
1132 list_for_each_entry_safe(rule, ruleb, rules, list) {
1133 LIST_DEL(&rule->list);
1134 deinit_acl_cond(rule->cond);
1135 if (rule->expr) {
Willy Tarreau12785782012-04-27 21:37:17 +02001136 struct sample_conv_expr *conv_expr, *conv_exprb;
Simon Horman6fb82592011-07-15 13:14:11 +09001137 list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list)
Willy Tarreau12785782012-04-27 21:37:17 +02001138 deinit_sample_arg(conv_expr->arg_p);
1139 deinit_sample_arg(rule->expr->arg_p);
Simon Horman6fb82592011-07-15 13:14:11 +09001140 free(rule->expr);
1141 }
1142 free(rule);
1143 }
1144}
1145
Willy Tarreaubaaee002006-06-26 02:48:02 +02001146void deinit(void)
1147{
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001148 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001149 struct cap_hdr *h,*h_next;
1150 struct server *s,*s_next;
1151 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001152 struct acl_cond *cond, *condb;
1153 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001154 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001155 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001156 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001157 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001158 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01001159 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001160 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02001161 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01001162 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001163 struct bind_conf *bind_conf, *bind_back;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001164 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001165
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001166 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001167 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02001168 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001169 free(p->id);
1170 free(p->check_req);
1171 free(p->cookie_name);
1172 free(p->cookie_domain);
1173 free(p->url_param_name);
1174 free(p->capture_name);
1175 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09001176 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02001177 if (p->conf.logformat_string != default_http_log_format &&
1178 p->conf.logformat_string != default_tcp_log_format &&
1179 p->conf.logformat_string != clf_http_log_format)
1180 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02001181
Willy Tarreau62a61232013-04-12 18:13:46 +02001182 free(p->conf.lfs_file);
1183 free(p->conf.uniqueid_format_string);
1184 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08001185 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001186
Willy Tarreaua534fea2008-08-03 12:19:50 +02001187 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02001188 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001189
Willy Tarreauf4f04122010-01-28 18:10:50 +01001190 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
1191 LIST_DEL(&cwl->list);
1192 free(cwl->s);
1193 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001194 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001195
Willy Tarreauf4f04122010-01-28 18:10:50 +01001196 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
1197 LIST_DEL(&cwl->list);
1198 free(cwl->s);
1199 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001200 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001201
Willy Tarreau353bc9f2014-04-28 22:05:31 +02001202 list_for_each_entry_safe(cond, condb, &p->block_rules, list) {
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001203 LIST_DEL(&cond->list);
1204 prune_acl_cond(cond);
1205 free(cond);
1206 }
1207
Willy Tarreaub80c2302007-11-30 20:51:32 +01001208 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
1209 LIST_DEL(&cond->list);
1210 prune_acl_cond(cond);
1211 free(cond);
1212 }
1213
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001214 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001215 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001216 regex_free(exp->preg);
1217 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001218 }
1219
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001220 if (exp->replace && exp->action != ACT_SETBE)
1221 free((char *)exp->replace);
1222 expb = exp;
1223 exp = exp->next;
1224 free(expb);
1225 }
1226
1227 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001228 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001229 regex_free(exp->preg);
1230 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001231 }
1232
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001233 if (exp->replace && exp->action != ACT_SETBE)
1234 free((char *)exp->replace);
1235 expb = exp;
1236 exp = exp->next;
1237 free(expb);
1238 }
1239
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001240 /* build a list of unique uri_auths */
1241 if (!ua)
1242 ua = p->uri_auth;
1243 else {
1244 /* check if p->uri_auth is unique */
1245 for (uap = ua; uap; uap=uap->next)
1246 if (uap == p->uri_auth)
1247 break;
1248
Willy Tarreauaccc4e12008-06-24 11:14:45 +02001249 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001250 /* add it, if it is */
1251 p->uri_auth->next = ua;
1252 ua = p->uri_auth;
1253 }
1254 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001255
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001256 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
1257 LIST_DEL(&acl->list);
1258 prune_acl(acl);
1259 free(acl);
1260 }
1261
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001262 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
1263 LIST_DEL(&srule->list);
1264 prune_acl_cond(srule->cond);
1265 free(srule->cond);
1266 free(srule);
1267 }
1268
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001269 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
1270 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001271 if (rule->cond) {
1272 prune_acl_cond(rule->cond);
1273 free(rule->cond);
1274 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001275 free(rule);
1276 }
1277
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001278 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
1279 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01001280 if (rdr->cond) {
1281 prune_acl_cond(rdr->cond);
1282 free(rdr->cond);
1283 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001284 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01001285 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
1286 LIST_DEL(&lf->list);
1287 free(lf);
1288 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001289 free(rdr);
1290 }
1291
William Lallemand0f99e342011-10-12 17:50:54 +02001292 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
1293 LIST_DEL(&log->list);
1294 free(log);
1295 }
1296
William Lallemand723b73a2012-02-08 16:37:49 +01001297 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
1298 LIST_DEL(&lf->list);
1299 free(lf);
1300 }
1301
Simon Hormanac821422011-07-15 13:14:09 +09001302 deinit_tcp_rules(&p->tcp_req.inspect_rules);
1303 deinit_tcp_rules(&p->tcp_req.l4_rules);
1304
Simon Horman6fb82592011-07-15 13:14:11 +09001305 deinit_stick_rules(&p->storersp_rules);
1306 deinit_stick_rules(&p->sticking_rules);
1307
Willy Tarreaua534fea2008-08-03 12:19:50 +02001308 free(p->appsession_name);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001309
1310 h = p->req_cap;
1311 while (h) {
1312 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001313 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001314 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001315 free(h);
1316 h = h_next;
1317 }/* end while(h) */
1318
1319 h = p->rsp_cap;
1320 while (h) {
1321 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001322 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001323 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001324 free(h);
1325 h = h_next;
1326 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001327
Willy Tarreaubaaee002006-06-26 02:48:02 +02001328 s = p->srv;
1329 while (s) {
1330 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001331
Willy Tarreau5b3a2022012-09-28 15:01:02 +02001332 if (s->check.task) {
1333 task_delete(s->check.task);
1334 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001335 }
Simon Hormand60d6912013-11-25 10:46:36 +09001336 if (s->agent.task) {
1337 task_delete(s->agent.task);
1338 task_free(s->agent.task);
1339 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001340
Willy Tarreau2e993902011-10-31 11:53:20 +01001341 if (s->warmup) {
1342 task_delete(s->warmup);
1343 task_free(s->warmup);
1344 }
1345
Willy Tarreaua534fea2008-08-03 12:19:50 +02001346 free(s->id);
1347 free(s->cookie);
Willy Tarreau1ae1b7b2012-09-28 15:28:30 +02001348 free(s->check.bi);
1349 free(s->check.bo);
Simon Hormand60d6912013-11-25 10:46:36 +09001350 free(s->agent.bi);
1351 free(s->agent.bo);
Sárközi, László34c01792014-09-05 10:08:23 +02001352 free((char*)s->conf.file);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001353 free(s);
1354 s = s_next;
1355 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001356
Willy Tarreau4348fad2012-09-20 16:48:07 +02001357 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02001358 unbind_listener(l);
1359 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001360 LIST_DEL(&l->by_fe);
1361 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001362 free(l->name);
1363 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001364 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001365 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001366
Willy Tarreau4348fad2012-09-20 16:48:07 +02001367 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001368 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
1369#ifdef USE_OPENSSL
1370 ssl_sock_free_all_ctx(bind_conf);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001371 free(bind_conf->ca_file);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001372 free(bind_conf->ciphers);
Emeric Brun2b58d042012-09-20 17:10:03 +02001373 free(bind_conf->ecdhe);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001374 free(bind_conf->crl_file);
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001375#endif /* USE_OPENSSL */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001376 free(bind_conf->file);
1377 free(bind_conf->arg);
1378 LIST_DEL(&bind_conf->by_fe);
1379 free(bind_conf);
1380 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001381
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001382 free(p->desc);
1383 free(p->fwdfor_hdr_name);
1384
Willy Tarreauff011f22011-01-06 17:51:27 +01001385 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06001386 free_http_res_rules(&p->http_res_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02001387 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01001388
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001389 pool_destroy2(p->req_cap_pool);
1390 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09001391 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001392
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001393 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001394 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001395 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001396 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02001397
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001398 while (ua) {
1399 uap = ua;
1400 ua = ua->next;
1401
Willy Tarreaua534fea2008-08-03 12:19:50 +02001402 free(uap->uri_prefix);
1403 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001404 free(uap->node);
1405 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001406
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001407 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001408 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001409
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001410 free(uap);
1411 }
1412
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001413 userlist_free(userlist);
1414
Willy Tarreaudd815982007-10-16 12:25:14 +02001415 protocol_unbind_all();
1416
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001417 free(global.log_send_hostname); global.log_send_hostname = NULL;
Kevinm48936af2010-12-22 16:08:21 +00001418 free(global.log_tag); global.log_tag = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001419 free(global.chroot); global.chroot = NULL;
1420 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001421 free(global.node); global.node = NULL;
1422 free(global.desc); global.desc = NULL;
Godbach4cc1b0d2013-06-26 16:49:51 +08001423 free(fdinfo); fdinfo = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001424 free(fdtab); fdtab = NULL;
1425 free(oldpids); oldpids = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001426 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001427
William Lallemand0f99e342011-10-12 17:50:54 +02001428 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1429 LIST_DEL(&log->list);
1430 free(log);
1431 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001432 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1433 LIST_DEL(&wl->list);
1434 free(wl);
1435 }
1436
Willy Tarreau87b09662015-04-03 00:22:06 +02001437 pool_destroy2(pool2_stream);
Willy Tarreaufeb76402015-04-03 14:10:06 +02001438 pool_destroy2(pool2_session);
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001439 pool_destroy2(pool2_connection);
Willy Tarreau9b28e032012-10-12 23:49:43 +02001440 pool_destroy2(pool2_buffer);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001441 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001442 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001443 pool_destroy2(pool2_capture);
Willy Tarreau63963c62007-05-13 21:29:55 +02001444 pool_destroy2(pool2_appsess);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001445 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001446 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001447 pool_destroy2(pool2_hdr_idx);
Willy Tarreau63986c72015-04-03 22:55:33 +02001448 pool_destroy2(pool2_http_txn);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001449
1450 if (have_appsession) {
Willy Tarreau63963c62007-05-13 21:29:55 +02001451 pool_destroy2(apools.serverid);
1452 pool_destroy2(apools.sessid);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001453 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001454
1455 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001456} /* end deinit() */
1457
Willy Tarreaubb545b42010-08-25 12:58:59 +02001458/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1459 * pids the signal was correctly delivered to.
1460 */
1461static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001462{
1463 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001464 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001465 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001466 if (kill(oldpids[p], sig) == 0)
1467 ret++;
1468 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001469}
1470
Willy Tarreau918ff602011-07-25 16:33:49 +02001471/* Runs the polling loop */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001472void run_poll_loop()
1473{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001474 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001475
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001476 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001477 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001478 /* Process a few tasks */
1479 process_runnable_tasks();
1480
Willy Tarreau29857942009-05-10 09:01:21 +02001481 /* check if we caught some signals and process them */
1482 signal_process_queue();
1483
Willy Tarreau58b458d2008-06-29 22:40:23 +02001484 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001485 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001486
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001487 /* stop when there's nothing left to do */
1488 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001489 break;
1490
Willy Tarreau10146c92015-04-13 20:44:19 +02001491 /* expire immediately if events are pending */
Willy Tarreau3c595ac2015-04-19 09:59:31 +02001492 if (fd_cache_num || run_queue || signal_queue_len || !LIST_ISEMPTY(&applet_runq))
Willy Tarreau10146c92015-04-13 20:44:19 +02001493 next = now_ms;
1494
Willy Tarreau58b458d2008-06-29 22:40:23 +02001495 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001496 cur_poller.poll(&cur_poller, next);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01001497 fd_process_cached_events();
Willy Tarreau3c595ac2015-04-19 09:59:31 +02001498 applet_run_active();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001499 }
1500}
1501
Willy Tarreaue9b26022011-08-01 20:57:55 +02001502/* This is the global management task for listeners. It enables listeners waiting
1503 * for global resources when there are enough free resource, or at least once in
1504 * a while. It is designed to be called as a task.
1505 */
1506static struct task *manage_global_listener_queue(struct task *t)
1507{
1508 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001509 /* queue is empty, nothing to do */
1510 if (LIST_ISEMPTY(&global_listener_queue))
1511 goto out;
1512
1513 /* If there are still too many concurrent connections, let's wait for
1514 * some of them to go away. We don't need to re-arm the timer because
1515 * each of them will scan the queue anyway.
1516 */
1517 if (unlikely(actconn >= global.maxconn))
1518 goto out;
1519
1520 /* We should periodically try to enable listeners waiting for a global
1521 * resource here, because it is possible, though very unlikely, that
1522 * they have been blocked by a temporary lack of global resource such
1523 * as a file descriptor or memory and that the temporary condition has
1524 * disappeared.
1525 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001526 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001527
1528 out:
1529 t->expire = next;
1530 task_queue(t);
1531 return t;
1532}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001533
Willy Tarreaubaaee002006-06-26 02:48:02 +02001534int main(int argc, char **argv)
1535{
1536 int err, retry;
1537 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001538 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02001539 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001540
Emeric Bruncf20bf12010-10-22 16:06:11 +02001541 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001542 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1543 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1544 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001545
Willy Tarreaue437c442010-03-17 18:02:46 +01001546 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1547 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1548 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001549 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001550 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001551
Willy Tarreaudc23a922011-02-16 11:10:36 +01001552 /* ulimits */
1553 if (!global.rlimit_nofile)
1554 global.rlimit_nofile = global.maxsock;
1555
1556 if (global.rlimit_nofile) {
1557 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1558 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
1559 Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile);
1560 }
1561 }
1562
1563 if (global.rlimit_memmax) {
1564 limit.rlim_cur = limit.rlim_max =
1565 global.rlimit_memmax * 1048576 / global.nbproc;
1566#ifdef RLIMIT_AS
1567 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1568 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1569 argv[0], global.rlimit_memmax);
1570 }
1571#else
1572 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1573 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1574 argv[0], global.rlimit_memmax);
1575 }
1576#endif
1577 }
1578
Willy Tarreaubaaee002006-06-26 02:48:02 +02001579 /* We will loop at most 100 times with 10 ms delay each time.
1580 * That's at most 1 second. We only send a signal to old pids
1581 * if we cannot grab at least one port.
1582 */
1583 retry = MAX_START_RETRIES;
1584 err = ERR_NONE;
1585 while (retry >= 0) {
1586 struct timeval w;
1587 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001588 /* exit the loop on no error or fatal error */
1589 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001590 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001591 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001592 break;
1593
1594 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1595 * listening sockets. So on those platforms, it would be wiser to
1596 * simply send SIGUSR1, which will not be undoable.
1597 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001598 if (tell_old_pids(SIGTTOU) == 0) {
1599 /* no need to wait if we can't contact old pids */
1600 retry = 0;
1601 continue;
1602 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001603 /* give some time to old processes to stop listening */
1604 w.tv_sec = 0;
1605 w.tv_usec = 10*1000;
1606 select(0, NULL, NULL, NULL, &w);
1607 retry--;
1608 }
1609
1610 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001611 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001612 if (retry != MAX_START_RETRIES && nb_oldpids) {
1613 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001614 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001615 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001616 exit(1);
1617 }
1618
1619 if (listeners == 0) {
1620 Alert("[%s.main()] No enabled listener found (check the <listen> keywords) ! Exiting.\n", argv[0]);
1621 /* Note: we don't have to send anything to the old pids because we
1622 * never stopped them. */
1623 exit(1);
1624 }
1625
Emeric Bruncf20bf12010-10-22 16:06:11 +02001626 err = protocol_bind_all(errmsg, sizeof(errmsg));
1627 if ((err & ~ERR_WARN) != ERR_NONE) {
1628 if ((err & ERR_ALERT) || (err & ERR_WARN))
1629 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1630
Willy Tarreaudd815982007-10-16 12:25:14 +02001631 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1632 protocol_unbind_all(); /* cleanup everything we can */
1633 if (nb_oldpids)
1634 tell_old_pids(SIGTTIN);
1635 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001636 } else if (err & ERR_WARN) {
1637 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001638 }
1639
Willy Tarreaubaaee002006-06-26 02:48:02 +02001640 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001641 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1642 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001643
Willy Tarreaubaaee002006-06-26 02:48:02 +02001644 /* MODE_QUIET can inhibit alerts and warnings below this line */
1645
1646 global.mode &= ~MODE_STARTING;
1647 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1648 /* detach from the tty */
1649 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001650 }
1651
1652 /* open log & pid files before the chroot */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001653 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001654 unlink(global.pidfile);
1655 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1656 if (pidfd < 0) {
1657 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1658 if (nb_oldpids)
1659 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001660 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001661 exit(1);
1662 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001663 }
1664
Willy Tarreaub38651a2007-03-24 17:24:39 +01001665#ifdef CONFIG_HAP_CTTPROXY
1666 if (global.last_checks & LSTCHK_CTTPROXY) {
1667 int ret;
1668
1669 ret = check_cttproxy_version();
1670 if (ret < 0) {
1671 Alert("[%s.main()] Cannot enable cttproxy.\n%s",
1672 argv[0],
1673 (ret == -1) ? " Incorrect module version.\n"
1674 : " Make sure you have enough permissions and that the module is loaded.\n");
Willy Tarreaudd815982007-10-16 12:25:14 +02001675 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001676 exit(1);
1677 }
1678 }
1679#endif
1680
1681 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1682 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001683 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001684 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001685 exit(1);
1686 }
1687
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001688 /* If the user is not root, we'll still let him try the configuration
1689 * but we inform him that unexpected behaviour may occur.
1690 */
1691 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1692 Warning("[%s.main()] Some options which require full privileges"
1693 " might not work well.\n"
1694 "", argv[0]);
1695
Willy Tarreauf223cc02007-10-15 18:57:08 +02001696 /* chroot if needed */
1697 if (global.chroot != NULL) {
Willy Tarreau21337822012-04-29 14:11:38 +02001698 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Willy Tarreauf223cc02007-10-15 18:57:08 +02001699 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1700 if (nb_oldpids)
1701 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001702 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001703 exit(1);
1704 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02001705 }
1706
Willy Tarreaubaaee002006-06-26 02:48:02 +02001707 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001708 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001709
1710 /* Note that any error at this stage will be fatal because we will not
1711 * be able to restart the old pids.
1712 */
1713
1714 /* setgid / setuid */
Michael Schererab012dd2013-01-12 18:35:19 +01001715 if (global.gid) {
1716 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
1717 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
1718 " without 'uid'/'user' is generally useless.\n", argv[0]);
1719
1720 if (setgid(global.gid) == -1) {
1721 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
1722 protocol_unbind_all();
1723 exit(1);
1724 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001725 }
1726
1727 if (global.uid && setuid(global.uid) == -1) {
1728 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001729 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001730 exit(1);
1731 }
1732
1733 /* check ulimits */
1734 limit.rlim_cur = limit.rlim_max = 0;
1735 getrlimit(RLIMIT_NOFILE, &limit);
1736 if (limit.rlim_cur < global.maxsock) {
1737 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 +02001738 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001739 }
1740
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001741 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001742 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001743 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001744 int ret = 0;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001745 int *children = calloc(global.nbproc, sizeof(int));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001746 int proc;
1747
1748 /* the father launches the required number of processes */
1749 for (proc = 0; proc < global.nbproc; proc++) {
1750 ret = fork();
1751 if (ret < 0) {
1752 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001753 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001754 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001755 }
1756 else if (ret == 0) /* child breaks here */
1757 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001758 children[proc] = ret;
Willy Tarreau269ab312012-09-05 08:02:48 +02001759 if (pidfd >= 0) {
1760 char pidstr[100];
1761 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01001762 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001763 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001764 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001765 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001766
1767#ifdef USE_CPU_AFFINITY
1768 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02001769 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001770 global.cpu_map[proc]) /* only do this if the process has a CPU map */
1771 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1772#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001773 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02001774 if (pidfd >= 0) {
1775 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
1776 close(pidfd);
1777 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02001778
1779 /* We won't ever use this anymore */
1780 free(oldpids); oldpids = NULL;
1781 free(global.chroot); global.chroot = NULL;
1782 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001783
Willy Tarreauedaff0a2015-05-01 17:01:08 +02001784 if (proc == global.nbproc) {
1785 if (global.mode & MODE_SYSTEMD) {
1786 protocol_unbind_all();
1787 for (proc = 0; proc < global.nbproc; proc++)
1788 while (waitpid(children[proc], NULL, 0) == -1 && errno == EINTR);
1789 }
1790 exit(0); /* parent must leave */
1791 }
1792
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001793 /* we might have to unbind some proxies from some processes */
1794 px = proxy;
1795 while (px != NULL) {
1796 if (px->bind_proc && px->state != PR_STSTOPPED) {
Willy Tarreaua9db57e2013-01-18 11:29:29 +01001797 if (!(px->bind_proc & (1UL << proc)))
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001798 stop_proxy(px);
1799 }
1800 px = px->next;
1801 }
1802
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02001803 /* we might have to unbind some peers sections from some processes */
1804 for (curpeers = peers; curpeers; curpeers = curpeers->next) {
1805 if (!curpeers->peers_fe)
1806 continue;
1807
1808 if (curpeers->peers_fe->bind_proc & (1UL << proc))
1809 continue;
1810
1811 stop_proxy(curpeers->peers_fe);
1812 /* disable this peer section so that it kills itself */
1813 curpeers->peers_fe = NULL;
1814 }
1815
Dirkjan Bussink07fcaaa2014-04-28 22:57:16 +00001816 free(children);
1817 children = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001818 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
1819 * that we can detach from the TTY. We MUST NOT do it in other cases since
1820 * it would have already be done, and 0-2 would have been affected to listening
1821 * sockets
1822 */
Willy Tarreau106cb762008-11-16 07:40:34 +01001823 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001824 /* detach from the tty */
1825 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01001826 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001827 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
1828 }
1829 pid = getpid(); /* update child's pid */
1830 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02001831 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001832 }
1833
Willy Tarreaudd815982007-10-16 12:25:14 +02001834 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001835 /*
1836 * That's it : the central polling loop. Run until we stop.
1837 */
1838 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001839
1840 /* Free all Hash Keys and all Hash elements */
1841 appsession_cleanup();
1842 /* Do some cleanup */
1843 deinit();
1844
1845 exit(0);
1846}
1847
1848
1849/*
1850 * Local variables:
1851 * c-indent-level: 8
1852 * c-basic-offset: 8
1853 * End:
1854 */