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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau1a34d572014-02-03 00:41:29 +01003 * Copyright 2000-2014 Willy Tarreau <w@1wt.eu>.
Willy Tarreaubaaee002006-06-26 02:48:02 +02004 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 *
10 * Please refer to RFC2068 or RFC2616 for informations about HTTP protocol, and
11 * RFC2965 for informations about cookies usage. More generally, the IETF HTTP
12 * Working Group's web site should be consulted for protocol related changes :
13 *
14 * http://ftp.ics.uci.edu/pub/ietf/http/
15 *
16 * Pending bugs (may be not fixed because never reproduced) :
17 * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes
18 * the proxy to terminate (no core) if the client breaks the connection during
19 * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to
20 * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be
21 * related to missing setsid() (fixed in 1.1.15)
22 * - a proxy with an invalid config will prevent the startup even if disabled.
23 *
24 * ChangeLog has moved to the CHANGELOG file.
25 *
Willy Tarreaubaaee002006-06-26 02:48:02 +020026 */
27
28#include <stdio.h>
29#include <stdlib.h>
30#include <unistd.h>
31#include <string.h>
32#include <ctype.h>
33#include <sys/time.h>
34#include <sys/types.h>
35#include <sys/socket.h>
36#include <netinet/tcp.h>
37#include <netinet/in.h>
38#include <arpa/inet.h>
39#include <netdb.h>
40#include <fcntl.h>
41#include <errno.h>
42#include <signal.h>
43#include <stdarg.h>
44#include <sys/resource.h>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010045#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020046#include <time.h>
47#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010048#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010049#ifdef USE_CPU_AFFINITY
50#define __USE_GNU
51#include <sched.h>
52#undef __USE_GNU
53#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020054
55#ifdef DEBUG_FULL
56#include <assert.h>
57#endif
58
Willy Tarreau2dd0d472006-06-29 17:53:05 +020059#include <common/appsession.h>
60#include <common/base64.h>
61#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020062#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020063#include <common/compat.h>
64#include <common/config.h>
65#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010066#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020067#include <common/memory.h>
68#include <common/mini-clist.h>
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
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +010082#include <proto/auth.h>
Willy Tarreau0fc45a72007-06-17 00:36:03 +020083#include <proto/acl.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020084#include <proto/arg.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020085#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020086#include <proto/channel.h>
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +020087#include <proto/checks.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +020088#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020089#include <proto/fd.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +020090#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +010091#include <proto/hlua.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020092#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020093#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +010094#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020095#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +010096#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020097#include <proto/proxy.h>
98#include <proto/queue.h>
99#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200100#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200101#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200102#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200103#include <proto/task.h>
104
Willy Tarreaub38651a2007-03-24 17:24:39 +0100105#ifdef CONFIG_HAP_CTTPROXY
106#include <proto/cttproxy.h>
107#endif
108
Emeric Brunfc0421f2012-09-07 17:30:07 +0200109#ifdef USE_OPENSSL
110#include <proto/ssl_sock.h>
111#endif
112
Willy Tarreaubaaee002006-06-26 02:48:02 +0200113/*********************************************************************/
114
Cyril Bonté6162c432012-11-10 19:27:47 +0100115extern const struct comp_algo comp_algos[];
116
Willy Tarreaubaaee002006-06-26 02:48:02 +0200117/*********************************************************************/
118
Willy Tarreau477ecd82010-01-03 21:12:30 +0100119/* list of config files */
120static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200121int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100122int relative_pid = 1; /* process id starting at 1 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200123
124/* global options */
125struct global global = {
Willy Tarreau247a13a2012-11-15 17:38:15 +0100126 .nbproc = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200127 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200128 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100129#ifdef DEFAULT_MAXZLIBMEM
Willy Tarreau5a940372012-12-03 12:10:45 +0100130 .maxzlibmem = DEFAULT_MAXZLIBMEM * 1024U * 1024U,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100131#else
William Lallemand9d5f5482012-11-07 16:12:57 +0100132 .maxzlibmem = 0,
Willy Tarreau96aa6b32012-11-12 15:52:53 +0100133#endif
William Lallemandd85f9172012-11-09 17:05:39 +0100134 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100135 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200136 .unix_bind = {
137 .ux = {
138 .uid = -1,
139 .gid = -1,
140 .mode = 0,
141 }
142 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200143 .tune = {
144 .bufsize = BUFSIZE,
145 .maxrewrite = MAXREWRITE,
Willy Tarreau43961d52010-10-04 20:39:20 +0200146 .chksize = BUFSIZE,
Willy Tarreaua24adf02014-11-27 01:11:56 +0100147 .reserved_bufs = RESERVED_BUFS,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200148#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100149 .sslcachesize = SSLCACHESIZE,
Remi Gacognef46cd6e2014-06-12 14:58:40 +0200150 .ssl_default_dh_param = SSL_DEFAULT_DH_PARAM,
Willy Tarreau03effc12014-02-12 14:55:41 +0100151#ifdef DEFAULT_SSL_MAX_RECORD
152 .ssl_max_record = DEFAULT_SSL_MAX_RECORD,
153#endif
Emeric Brunfc32aca2012-09-03 12:10:29 +0200154#endif
William Lallemanda509e4c2012-11-07 16:54:34 +0100155#ifdef USE_ZLIB
156 .zlibmemlevel = 8,
157 .zlibwindowsize = MAX_WBITS,
158#endif
William Lallemandf3747832012-11-09 12:33:10 +0100159 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100160#ifdef DEFAULT_IDLE_TIMER
161 .idle_timer = DEFAULT_IDLE_TIMER,
162#else
163 .idle_timer = 1000, /* 1 second */
164#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200165 },
Emeric Brun76d88952012-10-05 15:47:31 +0200166#ifdef USE_OPENSSL
167#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200168 .maxsslconn = DEFAULT_MAXSSLCONN,
169#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200170#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200171 /* others NULL OK */
172};
173
174/*********************************************************************/
175
176int stopping; /* non zero means stopping in progress */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200177int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200178
179/* Here we store informations about the pids of the processes we may pause
180 * or kill. We will send them a signal every 10 ms until we can bind to all
181 * our ports. With 200 retries, that's about 2 seconds.
182 */
183#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200184static int *oldpids = NULL;
185static int oldpids_sig; /* use USR1 or TERM */
186
187/* this is used to drain data, and as a temporary buffer for sprintf()... */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100188struct chunk trash = { };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200189
Willy Tarreau8096de92010-02-26 11:12:27 +0100190/* this buffer is always the same size as standard buffers and is used for
191 * swapping data inside a buffer.
192 */
193char *swap_buffer = NULL;
194
Willy Tarreaubb545b42010-08-25 12:58:59 +0200195int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200196const int zero = 0;
197const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200198const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200199
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100200char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200201char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200202
Willy Tarreau89efaed2013-12-13 15:14:55 +0100203/* used from everywhere just to drain results we don't want to read and which
204 * recent versions of gcc increasingly and annoyingly complain about.
205 */
206int shut_your_big_mouth_gcc_int = 0;
207
Willy Tarreau08ceb102011-07-24 22:58:00 +0200208/* list of the temporarily limited listeners because of lack of resource */
209struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200210struct task *global_listener_queue_task;
211static struct task *manage_global_listener_queue(struct task *t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200212
Willy Tarreauff055502014-04-28 22:27:06 +0200213/* bitfield of a few warnings to emit just once (WARN_*) */
214unsigned int warned = 0;
215
Willy Tarreaubaaee002006-06-26 02:48:02 +0200216/*********************************************************************/
217/* general purpose functions ***************************************/
218/*********************************************************************/
219
220void display_version()
221{
222 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreau8747b6d2015-03-11 23:57:23 +0100223 printf("Copyright 2000-2015 Willy Tarreau <w@1wt.eu>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200224}
225
Willy Tarreau7b066db2007-12-02 11:28:59 +0100226void display_build_opts()
227{
228 printf("Build options :"
229#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100230 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100231#endif
232#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100233 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100234#endif
235#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100236 "\n CC = " BUILD_CC
237#endif
238#ifdef BUILD_CFLAGS
239 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100240#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100241#ifdef BUILD_OPTIONS
242 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100243#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200244 "\n\nDefault settings :"
245 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
246 "\n\n",
247 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200248
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100249 printf("Encrypted password support via crypt(3): "
250#ifdef CONFIG_HAP_CRYPT
251 "yes"
252#else
253 "no"
254#endif
255 "\n");
256
Cyril Bonté6162c432012-11-10 19:27:47 +0100257#ifdef USE_ZLIB
258 printf("Built with zlib version : " ZLIB_VERSION "\n");
259#else /* USE_ZLIB */
260 printf("Built without zlib support (USE_ZLIB not set)\n");
261#endif
262 printf("Compression algorithms supported :");
263 {
264 int i;
265
Willy Tarreau615105e2015-03-28 16:40:46 +0100266 for (i = 0; comp_algos[i].cfg_name; i++) {
267 printf("%s %s(\"%s\")", (i == 0 ? "" : ","), comp_algos[i].cfg_name, comp_algos[i].ua_name);
Cyril Bonté6162c432012-11-10 19:27:47 +0100268 }
269 if (i == 0) {
270 printf("none");
271 }
272 }
273 printf("\n");
274
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200275#ifdef USE_OPENSSL
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200276 printf("Built with OpenSSL version : "
277#ifdef OPENSSL_IS_BORINGSSL
278 "BoringSSL\n");
279#else /* OPENSSL_IS_BORINGSSL */
280 OPENSSL_VERSION_TEXT "\n");
Willy Tarreau0cff0db2013-04-26 18:16:13 +0200281 printf("Running on OpenSSL version : %s%s\n",
282 SSLeay_version(SSLEAY_VERSION),
283 ((OPENSSL_VERSION_NUMBER ^ SSLeay()) >> 8) ? " (VERSIONS DIFFER!)" : "");
Lukas Tribus581cc8d2014-08-18 00:56:30 +0200284#endif
Willy Tarreau1ee0e302012-09-10 07:16:05 +0200285 printf("OpenSSL library supports TLS extensions : "
286#if OPENSSL_VERSION_NUMBER < 0x00907000L
287 "no (library version too old)"
288#elif defined(OPENSSL_NO_TLSEXT)
289 "no (disabled via OPENSSL_NO_TLSEXT)"
290#else
291 "yes"
292#endif
293 "\n");
294 printf("OpenSSL library supports SNI : "
295#ifdef SSL_CTRL_SET_TLSEXT_HOSTNAME
296 "yes"
297#else
298#ifdef OPENSSL_NO_TLSEXT
299 "no (because of OPENSSL_NO_TLSEXT)"
300#else
301 "no (version might be too old, 0.9.8f min needed)"
302#endif
303#endif
304 "\n");
305 printf("OpenSSL library supports prefer-server-ciphers : "
306#ifdef SSL_OP_CIPHER_SERVER_PREFERENCE
307 "yes"
308#else
309 "no (0.9.7 or later needed)"
310#endif
311 "\n");
312#else /* USE_OPENSSL */
313 printf("Built without OpenSSL support (USE_OPENSSL not set)\n");
314#endif
Lukas Tribusea68d362013-04-04 12:24:16 +0200315
316#ifdef USE_PCRE
317 printf("Built with PCRE version : %s", pcre_version());
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200318 printf("\nPCRE library supports JIT : ");
319#ifdef USE_PCRE_JIT
320 {
321 int r;
322 pcre_config(PCRE_CONFIG_JIT, &r);
323 if (r)
324 printf("yes");
325 else
326 printf("no (libpcre build without JIT?)");
327 }
Lukas Tribusea68d362013-04-04 12:24:16 +0200328#else
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200329 printf("no (USE_PCRE_JIT not set)");
Lukas Tribusea68d362013-04-04 12:24:16 +0200330#endif
Lukas Tribusd9bdccd2013-04-15 00:41:40 +0200331 printf("\n");
Lukas Tribusea68d362013-04-04 12:24:16 +0200332#else
333 printf("Built without PCRE support (using libc's regex instead)\n");
334#endif
335
Cyril Bonté47eb2192015-03-02 00:08:39 +0100336#ifdef USE_LUA
337 printf("Built with Lua version : %s\n", LUA_RELEASE);
338#else
339 printf("Built without Lua support\n");
340#endif
341
Pieter Baauwd551fb52013-05-08 22:49:23 +0200342#if defined(CONFIG_HAP_TRANSPARENT) || defined(CONFIG_HAP_CTTPROXY)
343 printf("Built with transparent proxy support using:"
344#if defined(CONFIG_HAP_CTTPROXY)
345 " CTTPROXY"
346#endif
347#if defined(IP_TRANSPARENT)
348 " IP_TRANSPARENT"
349#endif
350#if defined(IPV6_TRANSPARENT)
351 " IPV6_TRANSPARENT"
352#endif
353#if defined(IP_FREEBIND)
354 " IP_FREEBIND"
355#endif
Pieter Baauwff30b662013-05-08 23:22:39 +0200356#if defined(IP_BINDANY)
357 " IP_BINDANY"
358#endif
359#if defined(IPV6_BINDANY)
360 " IPV6_BINDANY"
361#endif
Pieter Baauw1eb75922013-05-08 23:30:23 +0200362#if defined(SO_BINDANY)
363 " SO_BINDANY"
364#endif
Pieter Baauwd551fb52013-05-08 22:49:23 +0200365 "\n");
366#endif
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100367
368#if defined(CONFIG_HAP_NS)
369 printf("Built with network namespace support\n");
370#endif
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100371 putchar('\n');
372
Willy Tarreaube5b6852009-10-03 18:57:08 +0200373 list_pollers(stdout);
374 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100375}
376
Willy Tarreaubaaee002006-06-26 02:48:02 +0200377/*
378 * This function prints the command line usage and exits
379 */
380void usage(char *name)
381{
382 display_version();
383 fprintf(stderr,
Willy Tarreau5d01a632009-06-22 16:02:30 +0200384 "Usage : %s [-f <cfgfile>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200385 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200386 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100387 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200388 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200389 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200390 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200391 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200392 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200393 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200394 " -n sets the maximum total # of connections (%d)\n"
395 " -m limits the usable amount of memory (in MB)\n"
396 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200397 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200398 " -p writes pids of all children to this file\n"
399#if defined(ENABLE_EPOLL)
400 " -de disables epoll() usage even when available\n"
401#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200402#if defined(ENABLE_KQUEUE)
403 " -dk disables kqueue() usage even when available\n"
404#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200405#if defined(ENABLE_POLL)
406 " -dp disables poll() usage even when available\n"
407#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200408#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100409 " -dS disables splice usage (broken on old kernels)\n"
410#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200411#if defined(USE_GETADDRINFO)
412 " -dG disables getaddrinfo() usage\n"
413#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100414 " -dV disables SSL verify on servers side\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200415 " -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.\n"
416 "\n",
417 name, DEFAULT_MAXCONN, cfg_maxpconn);
418 exit(1);
419}
420
421
422
423/*********************************************************************/
424/* more specific functions ***************************************/
425/*********************************************************************/
426
427/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200428 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
429 * a signal zero to all subscribers. This means that it's as easy as
430 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200431 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200432void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200433{
434 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200435 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200436 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200437}
438
439/*
440 * upon SIGTTOU, we pause everything
441 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200442void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200443{
444 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200445 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200446}
447
448/*
449 * upon SIGTTIN, let's have a soft stop.
450 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200451void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200452{
Willy Tarreaube58c382011-07-24 18:28:10 +0200453 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200454}
455
456/*
457 * this function dumps every server's state when the process receives SIGHUP.
458 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200459void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200460{
461 struct proxy *p = proxy;
462
463 Warning("SIGHUP received, dumping servers states.\n");
464 while (p) {
465 struct server *s = p->srv;
466
467 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
468 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100469 chunk_printf(&trash,
470 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
471 p->id, s->id,
Willy Tarreau892337c2014-05-13 23:41:20 +0200472 (s->state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100473 s->cur_sess, s->nbpend, s->counters.cum_sess);
474 Warning("%s\n", trash.str);
475 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200476 s = s->next;
477 }
478
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200479 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
480 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100481 chunk_printf(&trash,
482 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
483 p->id,
484 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 +0200485 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100486 chunk_printf(&trash,
487 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
488 p->id,
489 (p->srv_bck) ? "is running on backup servers" : "has no server available",
490 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 +0200491 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100492 chunk_printf(&trash,
493 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
494 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
495 p->id, p->srv_act, p->srv_bck,
496 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 +0200497 }
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100498 Warning("%s\n", trash.str);
499 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200500
501 p = p->next;
502 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200503}
504
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200505void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200506{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200507 /* dump memory usage then free everything possible */
508 dump_pools();
509 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200510}
511
Willy Tarreaubaaee002006-06-26 02:48:02 +0200512/*
513 * This function initializes all the necessary variables. It only returns
514 * if everything is OK. If something fails, it exits.
515 */
516void init(int argc, char **argv)
517{
Willy Tarreaubaaee002006-06-26 02:48:02 +0200518 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200519 char *tmp;
520 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200521 int err_code = 0;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100522 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000523 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200524 char *change_dir = NULL;
Yuxans Yao4e25b012012-10-19 10:36:09 +0800525 struct tm curtime;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200526
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100527 chunk_init(&trash, malloc(global.tune.bufsize), global.tune.bufsize);
Willy Tarreau2819e992013-12-13 14:41:10 +0100528 alloc_trash_buffers(global.tune.bufsize);
David du Colombier7af46052012-05-16 14:16:48 +0200529
Emeric Brun2b920a12010-09-23 18:30:22 +0200530 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
531 * the string in case of truncation, and at least FreeBSD appears not to do
532 * it.
533 */
534 memset(hostname, 0, sizeof(hostname));
535 gethostname(hostname, sizeof(hostname) - 1);
536 memset(localpeer, 0, sizeof(localpeer));
537 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
538
Willy Tarreaubaaee002006-06-26 02:48:02 +0200539 /*
540 * Initialize the previously static variables.
541 */
542
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100543 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200544
545
546#ifdef HAPROXY_MEMMAX
547 global.rlimit_memmax = HAPROXY_MEMMAX;
548#endif
549
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200550 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200551 start_date = now;
552
Willy Tarreau84310e22014-02-14 11:59:04 +0100553 srandom(now_ms - getpid());
554
Yuxans Yao4e25b012012-10-19 10:36:09 +0800555 /* Get the numeric timezone. */
556 get_localtime(start_date.tv_sec, &curtime);
557 strftime(localtimezone, 6, "%z", &curtime);
558
Willy Tarreau29857942009-05-10 09:01:21 +0200559 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100560 if (init_acl() != 0)
561 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200562 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +0200563 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200564 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200565 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +0200566 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200567 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100568 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200569
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100570 /* Initialise lua. */
571 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100572
Willy Tarreau43b78992009-01-25 15:42:27 +0100573 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200574#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100575 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200576#endif
577#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100578 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200579#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200580#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100581 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200582#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200583#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100584 global.tune.options |= GTUNE_USE_SPLICE;
585#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200586#if defined(USE_GETADDRINFO)
587 global.tune.options |= GTUNE_USE_GAI;
588#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200589
590 pid = getpid();
591 progname = *argv;
592 while ((tmp = strchr(progname, '/')) != NULL)
593 progname = tmp + 1;
594
Kevinm48936af2010-12-22 16:08:21 +0000595 /* the process name is used for the logs only */
596 global.log_tag = strdup(progname);
597
Willy Tarreaubaaee002006-06-26 02:48:02 +0200598 argc--; argv++;
599 while (argc > 0) {
600 char *flag;
601
602 if (**argv == '-') {
603 flag = *argv+1;
604
605 /* 1 arg */
606 if (*flag == 'v') {
607 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100608 if (flag[1] == 'v') /* -vv */
609 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200610 exit(0);
611 }
612#if defined(ENABLE_EPOLL)
613 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100614 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200615#endif
616#if defined(ENABLE_POLL)
617 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100618 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200619#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200620#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200621 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100622 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200623#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200624#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100625 else if (*flag == 'd' && flag[1] == 'S')
626 global.tune.options &= ~GTUNE_USE_SPLICE;
627#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200628#if defined(USE_GETADDRINFO)
629 else if (*flag == 'd' && flag[1] == 'G')
630 global.tune.options &= ~GTUNE_USE_GAI;
631#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100632 else if (*flag == 'd' && flag[1] == 'V')
633 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200634 else if (*flag == 'V')
635 arg_mode |= MODE_VERBOSE;
636 else if (*flag == 'd' && flag[1] == 'b')
637 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +0200638 else if (*flag == 'd' && flag[1] == 'M')
639 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreaubaaee002006-06-26 02:48:02 +0200640 else if (*flag == 'd')
641 arg_mode |= MODE_DEBUG;
642 else if (*flag == 'c')
643 arg_mode |= MODE_CHECK;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100644 else if (*flag == 'D') {
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200645 arg_mode |= MODE_DAEMON;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100646 if (flag[1] == 's') /* -Ds */
647 arg_mode |= MODE_SYSTEMD;
648 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200649 else if (*flag == 'q')
650 arg_mode |= MODE_QUIET;
651 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
652 /* list of pids to finish ('f') or terminate ('t') */
653
654 if (flag[1] == 'f')
655 oldpids_sig = SIGUSR1; /* finish then exit */
656 else
657 oldpids_sig = SIGTERM; /* terminate immediately */
658 argv++; argc--;
659
660 if (argc > 0) {
661 oldpids = calloc(argc, sizeof(int));
662 while (argc > 0) {
663 oldpids[nb_oldpids] = atol(*argv);
664 if (oldpids[nb_oldpids] <= 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200665 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200666 argc--; argv++;
667 nb_oldpids++;
668 }
669 }
670 }
671 else { /* >=2 args */
672 argv++; argc--;
673 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200674 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200675
676 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200677 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200678 case 'n' : cfg_maxconn = atol(*argv); break;
679 case 'm' : global.rlimit_memmax = atol(*argv); break;
680 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200681 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200682 case 'f' :
Willy Tarreau477ecd82010-01-03 21:12:30 +0100683 wl = (struct wordlist *)calloc(1, sizeof(*wl));
684 if (!wl) {
685 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200686 exit(1);
687 }
Willy Tarreau477ecd82010-01-03 21:12:30 +0100688 wl->s = *argv;
689 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200690 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200691 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200692 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200693 }
694 }
695 }
696 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200697 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200698 argv++; argc--;
699 }
700
701 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100702 (arg_mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_FOREGROUND | MODE_VERBOSE
Willy Tarreaubaaee002006-06-26 02:48:02 +0200703 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
704
Willy Tarreau477ecd82010-01-03 21:12:30 +0100705 if (LIST_ISEMPTY(&cfg_cfgfiles))
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200706 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200707
Willy Tarreau576132e2011-09-10 19:26:56 +0200708 if (change_dir && chdir(change_dir) < 0) {
709 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
710 exit(1);
711 }
712
Willy Tarreaubaaee002006-06-26 02:48:02 +0200713 have_appsession = 0;
714 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200715
716 init_default_instance();
717
Willy Tarreau477ecd82010-01-03 21:12:30 +0100718 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100719 int ret;
720
Willy Tarreau477ecd82010-01-03 21:12:30 +0100721 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100722 if (ret == -1) {
723 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100724 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100725 exit(1);
726 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100727 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100728 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100729 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200730 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200731 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200732 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200733
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100734 pattern_finalize_config();
735
Willy Tarreaubb925012009-07-23 13:36:36 +0200736 err_code |= check_config_validity();
737 if (err_code & (ERR_ABORT|ERR_FATAL)) {
738 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200739 exit(1);
740 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200741
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +0100742#ifdef CONFIG_HAP_NS
743 err_code |= netns_init();
744 if (err_code & (ERR_ABORT|ERR_FATAL)) {
745 Alert("Failed to initialize namespace support.\n");
746 exit(1);
747 }
748#endif
749
Willy Tarreaubaaee002006-06-26 02:48:02 +0200750 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100751 struct peers *pr;
752 struct proxy *px;
753
754 for (pr = peers; pr; pr = pr->next)
755 if (pr->peers_fe)
756 break;
757
758 for (px = proxy; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +0200759 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100760 break;
761
762 if (pr || px) {
763 /* At least one peer or one listener has been found */
764 qfprintf(stdout, "Configuration file is valid\n");
765 exit(0);
766 }
767 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
768 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200769 }
770
Willy Tarreaue9b26022011-08-01 20:57:55 +0200771 global_listener_queue_task = task_new();
772 if (!global_listener_queue_task) {
773 Alert("Out of memory when initializing global task\n");
774 exit(1);
775 }
776 /* very simple initialization, users will queue the task if needed */
777 global_listener_queue_task->context = NULL; /* not even a context! */
778 global_listener_queue_task->process = manage_global_listener_queue;
779 global_listener_queue_task->expire = TICK_ETERNITY;
780
Willy Tarreau8263d2b2012-08-28 00:06:31 +0200781 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +0200782 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +0200783
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200784 if (have_appsession)
785 appsession_init();
786
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200787 if (start_checks() < 0)
788 exit(1);
789
Willy Tarreaubaaee002006-06-26 02:48:02 +0200790 if (cfg_maxconn > 0)
791 global.maxconn = cfg_maxconn;
792
793 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200794 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200795 global.pidfile = strdup(cfg_pidfile);
796 }
797
Willy Tarreaud0256482015-01-15 21:45:22 +0100798 /* Now we want to compute the maxconn and possibly maxsslconn values.
799 * It's a bit tricky. If memmax is not set, maxconn defaults to
800 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
801 *
802 * If memmax is set, then it depends on which values are set. If
803 * maxsslconn is set, we use memmax to determine how many cleartext
804 * connections may be added, and set maxconn to the sum of the two.
805 * If maxconn is set and not maxsslconn, maxsslconn is computed from
806 * the remaining amount of memory between memmax and the cleartext
807 * connections. If neither are set, then it is considered that all
808 * connections are SSL-capable, and maxconn is computed based on this,
809 * then maxsslconn accordingly. We need to know if SSL is used on the
810 * frontends, backends, or both, because when it's used on both sides,
811 * we need twice the value for maxsslconn, but we only count the
812 * handshake once since it is not performed on the two sides at the
813 * same time (frontend-side is terminated before backend-side begins).
814 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +0100815 * ssl_handshake_cost during its initialization. In any case, if
816 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
817 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +0100818 */
819 if (!global.rlimit_memmax) {
820 if (global.maxconn == 0) {
821 global.maxconn = DEFAULT_MAXCONN;
822 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
823 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
824 }
825 }
826#ifdef USE_OPENSSL
827 else if (!global.maxconn && !global.maxsslconn &&
828 (global.ssl_used_frontend || global.ssl_used_backend)) {
829 /* memmax is set, compute everything automatically. Here we want
830 * to ensure that all SSL connections will be served. We take
831 * care of the number of sides where SSL is used, and consider
832 * the worst case : SSL used on both sides and doing a handshake
833 * simultaneously. Note that we can't have more than maxconn
834 * handshakes at a time by definition, so for the worst case of
835 * two SSL conns per connection, we count a single handshake.
836 */
837 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
838 int64_t mem = global.rlimit_memmax * 1048576ULL;
839
840 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
841 mem -= global.maxzlibmem;
842 mem = mem * MEM_USABLE_RATIO;
843
844 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +0200845 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +0100846 sides * global.ssl_session_max_cost + // SSL buffers, one per side
847 global.ssl_handshake_max_cost); // 1 handshake per connection max
848
849 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +0100850#ifdef SYSTEM_MAXCONN
851 if (global.maxconn > DEFAULT_MAXCONN)
852 global.maxconn = DEFAULT_MAXCONN;
853#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +0100854 global.maxsslconn = sides * global.maxconn;
855 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
856 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
857 global.maxconn, global.maxsslconn);
858 }
859 else if (!global.maxsslconn &&
860 (global.ssl_used_frontend || global.ssl_used_backend)) {
861 /* memmax and maxconn are known, compute maxsslconn automatically.
862 * maxsslconn being forced, we don't know how many of it will be
863 * on each side if both sides are being used. The worst case is
864 * when all connections use only one SSL instance because
865 * handshakes may be on two sides at the same time.
866 */
867 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
868 int64_t mem = global.rlimit_memmax * 1048576ULL;
869 int64_t sslmem;
870
871 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
872 mem -= global.maxzlibmem;
873 mem = mem * MEM_USABLE_RATIO;
874
Willy Tarreau87b09662015-04-03 00:22:06 +0200875 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +0100876 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
877 global.maxsslconn = round_2dig(global.maxsslconn);
878
879 if (sslmem <= 0 || global.maxsslconn < sides) {
880 Alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
881 "high for the global.memmax value (%d MB). The absolute maximum possible value "
882 "without SSL is %d, but %d was found and SSL is in use.\n",
883 global.rlimit_memmax,
Willy Tarreau87b09662015-04-03 00:22:06 +0200884 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
Willy Tarreaud0256482015-01-15 21:45:22 +0100885 global.maxconn);
886 exit(1);
887 }
888
889 if (global.maxsslconn > sides * global.maxconn)
890 global.maxsslconn = sides * global.maxconn;
891
892 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
893 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
894 }
895#endif
896 else if (!global.maxconn) {
897 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
898 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
899 int64_t mem = global.rlimit_memmax * 1048576ULL;
900 int64_t clearmem;
901
902 if (global.ssl_used_frontend || global.ssl_used_backend)
903 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
904
905 mem -= global.maxzlibmem;
906 mem = mem * MEM_USABLE_RATIO;
907
908 clearmem = mem;
909 if (sides)
910 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
911
Willy Tarreau87b09662015-04-03 00:22:06 +0200912 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +0100913 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +0100914#ifdef SYSTEM_MAXCONN
915 if (global.maxconn > DEFAULT_MAXCONN)
916 global.maxconn = DEFAULT_MAXCONN;
917#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +0100918
919 if (clearmem <= 0 || !global.maxconn) {
920 Alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
921 "high for the global.memmax value (%d MB). The absolute maximum possible value "
922 "is %d, but %d was found.\n",
923 global.rlimit_memmax,
924 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
925 global.maxsslconn);
926 exit(1);
927 }
928
929 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
930 if (sides && global.maxsslconn > sides * global.maxconn) {
931 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
932 "to be limited to %d. Better reduce global.maxsslconn to get more "
933 "room for extra connections.\n", global.maxsslconn, global.maxconn);
934 }
935 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
936 }
937 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200938
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100939 if (!global.maxpipes) {
940 /* maxpipes not specified. Count how many frontends and backends
941 * may be using splicing, and bound that to maxconn.
942 */
943 struct proxy *cur;
944 int nbfe = 0, nbbe = 0;
945
946 for (cur = proxy; cur; cur = cur->next) {
947 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
948 if (cur->cap & PR_CAP_FE)
949 nbfe += cur->maxconn;
950 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +0100951 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100952 }
953 }
954 global.maxpipes = MAX(nbfe, nbbe);
955 if (global.maxpipes > global.maxconn)
956 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +0100957 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100958 }
959
960
Willy Tarreauabacc2c2011-09-07 14:26:33 +0200961 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200962 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +0100963 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200964
Willy Tarreau3c63fd82011-09-07 18:00:47 +0200965 if (global.stats_fe)
966 global.maxsock += global.stats_fe->maxconn;
967
968 if (peers) {
969 /* peers also need to bypass global maxconn */
970 struct peers *p = peers;
971
972 for (p = peers; p; p = p->next)
973 if (p->peers_fe)
974 global.maxsock += p->peers_fe->maxconn;
975 }
976
Willy Tarreau1db37712007-06-03 17:16:49 +0200977 if (global.tune.maxpollevents <= 0)
978 global.tune.maxpollevents = MAX_POLL_EVENTS;
979
Willy Tarreau6f4a82c2009-03-21 20:43:57 +0100980 if (global.tune.recv_enough == 0)
981 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
982
Willy Tarreau27a674e2009-08-17 07:23:33 +0200983 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
984 global.tune.maxrewrite = global.tune.bufsize / 2;
985
Willy Tarreaubaaee002006-06-26 02:48:02 +0200986 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
987 /* command line debug mode inhibits configuration mode */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100988 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200989 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
990 }
991
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100992 if (arg_mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200993 /* command line daemon mode inhibits foreground and debug modes mode */
994 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100995 global.mode |= (arg_mode & (MODE_DAEMON | MODE_SYSTEMD));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200996 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +0200997
998 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200999
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001000 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET))) {
1001 Warning("<debug> mode incompatible with <quiet>, <daemon> and <systemd>. Keeping <debug> only.\n");
1002 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001003 }
1004
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001005 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_SYSTEMD))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001006 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
1007 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
1008 global.nbproc = 1;
1009 }
1010
1011 if (global.nbproc < 1)
1012 global.nbproc = 1;
1013
Willy Tarreau8096de92010-02-26 11:12:27 +01001014 swap_buffer = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau7e2c6472012-10-29 20:44:36 +01001015 get_http_auth_buff = (char *)calloc(1, global.tune.bufsize);
Willy Tarreau07115412012-10-29 21:56:59 +01001016 static_table_key = calloc(1, sizeof(*static_table_key) + global.tune.bufsize);
Willy Tarreau8096de92010-02-26 11:12:27 +01001017
Willy Tarreau8d5d77e2009-10-18 07:25:52 +02001018 fdinfo = (struct fdinfo *)calloc(1,
1019 sizeof(struct fdinfo) * (global.maxsock));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001020 fdtab = (struct fdtab *)calloc(1,
1021 sizeof(struct fdtab) * (global.maxsock));
Willy Tarreauef1d1f82007-04-16 00:25:25 +02001022 /*
1023 * Note: we could register external pollers here.
1024 * Built-in pollers have been registered before main().
1025 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001026
Willy Tarreau43b78992009-01-25 15:42:27 +01001027 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001028 disable_poller("kqueue");
1029
Willy Tarreau43b78992009-01-25 15:42:27 +01001030 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001031 disable_poller("epoll");
1032
Willy Tarreau43b78992009-01-25 15:42:27 +01001033 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001034 disable_poller("poll");
1035
Willy Tarreau43b78992009-01-25 15:42:27 +01001036 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001037 disable_poller("select");
1038
1039 /* Note: we could disable any poller by name here */
1040
Willy Tarreau2ff76222007-04-09 19:29:56 +02001041 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1042 list_pollers(stderr);
1043
Willy Tarreau4f60f162007-04-08 16:39:58 +02001044 if (!init_pollers()) {
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001045 Alert("No polling mechanism available.\n"
1046 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
1047 " is too low on this platform to support maxconn and the number of listeners\n"
1048 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
1049 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
Prach Pongpanichb837e682013-05-14 20:56:28 +02001050 " global maxconn setting to accommodate the system's limitation. For reference,\n"
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001051 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
1052 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
1053 " check build settings using 'haproxy -vv'.\n\n",
1054 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001055 exit(1);
1056 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001057 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1058 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001059 }
1060
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001061 if (!global.node)
1062 global.node = strdup(hostname);
1063
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01001064 if (!hlua_post_init())
1065 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001066}
1067
Simon Horman6fb82592011-07-15 13:14:11 +09001068static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09001069{
Simon Hormanac821422011-07-15 13:14:09 +09001070 struct acl_term_suite *suite, *suiteb;
1071 struct acl_term *term, *termb;
1072
Simon Horman6fb82592011-07-15 13:14:11 +09001073 if (!cond)
1074 return;
1075
1076 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
1077 list_for_each_entry_safe(term, termb, &suite->terms, list) {
1078 LIST_DEL(&term->list);
1079 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09001080 }
Simon Horman6fb82592011-07-15 13:14:11 +09001081 LIST_DEL(&suite->list);
1082 free(suite);
1083 }
1084
1085 free(cond);
1086}
1087
1088static void deinit_tcp_rules(struct list *rules)
1089{
1090 struct tcp_rule *trule, *truleb;
1091
1092 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09001093 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09001094 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09001095 free(trule);
1096 }
1097}
1098
Willy Tarreau12785782012-04-27 21:37:17 +02001099static void deinit_sample_arg(struct arg *p)
Simon Horman6fb82592011-07-15 13:14:11 +09001100{
Willy Tarreauf9954102012-04-20 14:03:29 +02001101 struct arg *p_back = p;
1102
Simon Horman6fb82592011-07-15 13:14:11 +09001103 if (!p)
1104 return;
1105
Willy Tarreauf9954102012-04-20 14:03:29 +02001106 while (p->type != ARGT_STOP) {
Willy Tarreau496aa012012-06-01 10:38:29 +02001107 if (p->type == ARGT_STR || p->unresolved) {
Willy Tarreauf9954102012-04-20 14:03:29 +02001108 free(p->data.str.str);
1109 p->data.str.str = NULL;
Willy Tarreau496aa012012-06-01 10:38:29 +02001110 p->unresolved = 0;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001111 }
Willy Tarreau46947782015-01-19 19:00:58 +01001112 else if (p->type == ARGT_REG) {
1113 if (p->data.reg) {
1114 regex_free(p->data.reg);
1115 free(p->data.reg);
1116 p->data.reg = NULL;
1117 }
1118 }
Willy Tarreauf9954102012-04-20 14:03:29 +02001119 p++;
Willy Tarreauecfb8e82012-04-20 12:29:52 +02001120 }
Simon Horman6fb82592011-07-15 13:14:11 +09001121
Willy Tarreau2e845be2012-10-19 19:49:09 +02001122 if (p_back != empty_arg_list)
1123 free(p_back);
Simon Horman6fb82592011-07-15 13:14:11 +09001124}
1125
1126static void deinit_stick_rules(struct list *rules)
1127{
1128 struct sticking_rule *rule, *ruleb;
1129
1130 list_for_each_entry_safe(rule, ruleb, rules, list) {
1131 LIST_DEL(&rule->list);
1132 deinit_acl_cond(rule->cond);
1133 if (rule->expr) {
Willy Tarreau12785782012-04-27 21:37:17 +02001134 struct sample_conv_expr *conv_expr, *conv_exprb;
Simon Horman6fb82592011-07-15 13:14:11 +09001135 list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list)
Willy Tarreau12785782012-04-27 21:37:17 +02001136 deinit_sample_arg(conv_expr->arg_p);
1137 deinit_sample_arg(rule->expr->arg_p);
Simon Horman6fb82592011-07-15 13:14:11 +09001138 free(rule->expr);
1139 }
1140 free(rule);
1141 }
1142}
1143
Willy Tarreaubaaee002006-06-26 02:48:02 +02001144void deinit(void)
1145{
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001146 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001147 struct cap_hdr *h,*h_next;
1148 struct server *s,*s_next;
1149 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001150 struct acl_cond *cond, *condb;
1151 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001152 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001153 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001154 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001155 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001156 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01001157 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001158 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02001159 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01001160 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001161 struct bind_conf *bind_conf, *bind_back;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001162 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001163
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001164 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001165 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02001166 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001167 free(p->id);
1168 free(p->check_req);
1169 free(p->cookie_name);
1170 free(p->cookie_domain);
1171 free(p->url_param_name);
1172 free(p->capture_name);
1173 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09001174 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02001175 if (p->conf.logformat_string != default_http_log_format &&
1176 p->conf.logformat_string != default_tcp_log_format &&
1177 p->conf.logformat_string != clf_http_log_format)
1178 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02001179
Willy Tarreau62a61232013-04-12 18:13:46 +02001180 free(p->conf.lfs_file);
1181 free(p->conf.uniqueid_format_string);
1182 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08001183 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001184
Willy Tarreaua534fea2008-08-03 12:19:50 +02001185 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02001186 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001187
Willy Tarreauf4f04122010-01-28 18:10:50 +01001188 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
1189 LIST_DEL(&cwl->list);
1190 free(cwl->s);
1191 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001192 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001193
Willy Tarreauf4f04122010-01-28 18:10:50 +01001194 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
1195 LIST_DEL(&cwl->list);
1196 free(cwl->s);
1197 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001198 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001199
Willy Tarreau353bc9f2014-04-28 22:05:31 +02001200 list_for_each_entry_safe(cond, condb, &p->block_rules, list) {
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001201 LIST_DEL(&cond->list);
1202 prune_acl_cond(cond);
1203 free(cond);
1204 }
1205
Willy Tarreaub80c2302007-11-30 20:51:32 +01001206 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
1207 LIST_DEL(&cond->list);
1208 prune_acl_cond(cond);
1209 free(cond);
1210 }
1211
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001212 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001213 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001214 regex_free(exp->preg);
1215 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001216 }
1217
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001218 if (exp->replace && exp->action != ACT_SETBE)
1219 free((char *)exp->replace);
1220 expb = exp;
1221 exp = exp->next;
1222 free(expb);
1223 }
1224
1225 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001226 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001227 regex_free(exp->preg);
1228 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001229 }
1230
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001231 if (exp->replace && exp->action != ACT_SETBE)
1232 free((char *)exp->replace);
1233 expb = exp;
1234 exp = exp->next;
1235 free(expb);
1236 }
1237
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001238 /* build a list of unique uri_auths */
1239 if (!ua)
1240 ua = p->uri_auth;
1241 else {
1242 /* check if p->uri_auth is unique */
1243 for (uap = ua; uap; uap=uap->next)
1244 if (uap == p->uri_auth)
1245 break;
1246
Willy Tarreauaccc4e12008-06-24 11:14:45 +02001247 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001248 /* add it, if it is */
1249 p->uri_auth->next = ua;
1250 ua = p->uri_auth;
1251 }
1252 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001253
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001254 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
1255 LIST_DEL(&acl->list);
1256 prune_acl(acl);
1257 free(acl);
1258 }
1259
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001260 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
1261 LIST_DEL(&srule->list);
1262 prune_acl_cond(srule->cond);
1263 free(srule->cond);
1264 free(srule);
1265 }
1266
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001267 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
1268 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001269 if (rule->cond) {
1270 prune_acl_cond(rule->cond);
1271 free(rule->cond);
1272 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001273 free(rule);
1274 }
1275
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001276 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
1277 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01001278 if (rdr->cond) {
1279 prune_acl_cond(rdr->cond);
1280 free(rdr->cond);
1281 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001282 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01001283 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
1284 LIST_DEL(&lf->list);
1285 free(lf);
1286 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001287 free(rdr);
1288 }
1289
William Lallemand0f99e342011-10-12 17:50:54 +02001290 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
1291 LIST_DEL(&log->list);
1292 free(log);
1293 }
1294
William Lallemand723b73a2012-02-08 16:37:49 +01001295 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
1296 LIST_DEL(&lf->list);
1297 free(lf);
1298 }
1299
Simon Hormanac821422011-07-15 13:14:09 +09001300 deinit_tcp_rules(&p->tcp_req.inspect_rules);
1301 deinit_tcp_rules(&p->tcp_req.l4_rules);
1302
Simon Horman6fb82592011-07-15 13:14:11 +09001303 deinit_stick_rules(&p->storersp_rules);
1304 deinit_stick_rules(&p->sticking_rules);
1305
Willy Tarreaua534fea2008-08-03 12:19:50 +02001306 free(p->appsession_name);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001307
1308 h = p->req_cap;
1309 while (h) {
1310 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001311 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001312 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001313 free(h);
1314 h = h_next;
1315 }/* end while(h) */
1316
1317 h = p->rsp_cap;
1318 while (h) {
1319 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001320 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001321 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001322 free(h);
1323 h = h_next;
1324 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001325
Willy Tarreaubaaee002006-06-26 02:48:02 +02001326 s = p->srv;
1327 while (s) {
1328 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001329
Willy Tarreau5b3a2022012-09-28 15:01:02 +02001330 if (s->check.task) {
1331 task_delete(s->check.task);
1332 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001333 }
Simon Hormand60d6912013-11-25 10:46:36 +09001334 if (s->agent.task) {
1335 task_delete(s->agent.task);
1336 task_free(s->agent.task);
1337 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001338
Willy Tarreau2e993902011-10-31 11:53:20 +01001339 if (s->warmup) {
1340 task_delete(s->warmup);
1341 task_free(s->warmup);
1342 }
1343
Willy Tarreaua534fea2008-08-03 12:19:50 +02001344 free(s->id);
1345 free(s->cookie);
Willy Tarreau1ae1b7b2012-09-28 15:28:30 +02001346 free(s->check.bi);
1347 free(s->check.bo);
Simon Hormand60d6912013-11-25 10:46:36 +09001348 free(s->agent.bi);
1349 free(s->agent.bo);
Sárközi, László34c01792014-09-05 10:08:23 +02001350 free((char*)s->conf.file);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001351 free(s);
1352 s = s_next;
1353 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001354
Willy Tarreau4348fad2012-09-20 16:48:07 +02001355 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02001356 unbind_listener(l);
1357 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001358 LIST_DEL(&l->by_fe);
1359 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001360 free(l->name);
1361 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001362 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001363 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001364
Willy Tarreau4348fad2012-09-20 16:48:07 +02001365 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001366 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
1367#ifdef USE_OPENSSL
1368 ssl_sock_free_all_ctx(bind_conf);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001369 free(bind_conf->ca_file);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001370 free(bind_conf->ciphers);
Emeric Brun2b58d042012-09-20 17:10:03 +02001371 free(bind_conf->ecdhe);
Emeric Brunfb510ea2012-10-05 12:00:26 +02001372 free(bind_conf->crl_file);
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001373#endif /* USE_OPENSSL */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001374 free(bind_conf->file);
1375 free(bind_conf->arg);
1376 LIST_DEL(&bind_conf->by_fe);
1377 free(bind_conf);
1378 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001379
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001380 free(p->desc);
1381 free(p->fwdfor_hdr_name);
1382
Willy Tarreauff011f22011-01-06 17:51:27 +01001383 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06001384 free_http_res_rules(&p->http_res_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02001385 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01001386
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001387 pool_destroy2(p->req_cap_pool);
1388 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09001389 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001390
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001391 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001392 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001393 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001394 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02001395
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001396 while (ua) {
1397 uap = ua;
1398 ua = ua->next;
1399
Willy Tarreaua534fea2008-08-03 12:19:50 +02001400 free(uap->uri_prefix);
1401 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001402 free(uap->node);
1403 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001404
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001405 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001406 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001407
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001408 free(uap);
1409 }
1410
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001411 userlist_free(userlist);
1412
Willy Tarreaudd815982007-10-16 12:25:14 +02001413 protocol_unbind_all();
1414
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001415 free(global.log_send_hostname); global.log_send_hostname = NULL;
Kevinm48936af2010-12-22 16:08:21 +00001416 free(global.log_tag); global.log_tag = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001417 free(global.chroot); global.chroot = NULL;
1418 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001419 free(global.node); global.node = NULL;
1420 free(global.desc); global.desc = NULL;
Godbach4cc1b0d2013-06-26 16:49:51 +08001421 free(fdinfo); fdinfo = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001422 free(fdtab); fdtab = NULL;
1423 free(oldpids); oldpids = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001424 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001425
William Lallemand0f99e342011-10-12 17:50:54 +02001426 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1427 LIST_DEL(&log->list);
1428 free(log);
1429 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001430 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1431 LIST_DEL(&wl->list);
1432 free(wl);
1433 }
1434
Willy Tarreau87b09662015-04-03 00:22:06 +02001435 pool_destroy2(pool2_stream);
Willy Tarreaufeb76402015-04-03 14:10:06 +02001436 pool_destroy2(pool2_session);
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001437 pool_destroy2(pool2_connection);
Willy Tarreau9b28e032012-10-12 23:49:43 +02001438 pool_destroy2(pool2_buffer);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001439 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001440 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001441 pool_destroy2(pool2_capture);
Willy Tarreau63963c62007-05-13 21:29:55 +02001442 pool_destroy2(pool2_appsess);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001443 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001444 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001445 pool_destroy2(pool2_hdr_idx);
Willy Tarreau63986c72015-04-03 22:55:33 +02001446 pool_destroy2(pool2_http_txn);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001447
1448 if (have_appsession) {
Willy Tarreau63963c62007-05-13 21:29:55 +02001449 pool_destroy2(apools.serverid);
1450 pool_destroy2(apools.sessid);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001451 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001452
1453 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001454} /* end deinit() */
1455
Willy Tarreaubb545b42010-08-25 12:58:59 +02001456/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1457 * pids the signal was correctly delivered to.
1458 */
1459static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001460{
1461 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001462 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001463 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001464 if (kill(oldpids[p], sig) == 0)
1465 ret++;
1466 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001467}
1468
Willy Tarreau918ff602011-07-25 16:33:49 +02001469/* Runs the polling loop */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001470void run_poll_loop()
1471{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001472 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001473
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001474 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001475 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001476 /* Process a few tasks */
1477 process_runnable_tasks();
1478
Willy Tarreau29857942009-05-10 09:01:21 +02001479 /* check if we caught some signals and process them */
1480 signal_process_queue();
1481
Willy Tarreau58b458d2008-06-29 22:40:23 +02001482 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001483 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001484
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001485 /* stop when there's nothing left to do */
1486 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001487 break;
1488
Willy Tarreau10146c92015-04-13 20:44:19 +02001489 /* expire immediately if events are pending */
1490 if (fd_cache_num || run_queue || signal_queue_len)
1491 next = now_ms;
1492
Willy Tarreau58b458d2008-06-29 22:40:23 +02001493 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001494 cur_poller.poll(&cur_poller, next);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01001495 fd_process_cached_events();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001496 }
1497}
1498
Willy Tarreaue9b26022011-08-01 20:57:55 +02001499/* This is the global management task for listeners. It enables listeners waiting
1500 * for global resources when there are enough free resource, or at least once in
1501 * a while. It is designed to be called as a task.
1502 */
1503static struct task *manage_global_listener_queue(struct task *t)
1504{
1505 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001506 /* queue is empty, nothing to do */
1507 if (LIST_ISEMPTY(&global_listener_queue))
1508 goto out;
1509
1510 /* If there are still too many concurrent connections, let's wait for
1511 * some of them to go away. We don't need to re-arm the timer because
1512 * each of them will scan the queue anyway.
1513 */
1514 if (unlikely(actconn >= global.maxconn))
1515 goto out;
1516
1517 /* We should periodically try to enable listeners waiting for a global
1518 * resource here, because it is possible, though very unlikely, that
1519 * they have been blocked by a temporary lack of global resource such
1520 * as a file descriptor or memory and that the temporary condition has
1521 * disappeared.
1522 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001523 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001524
1525 out:
1526 t->expire = next;
1527 task_queue(t);
1528 return t;
1529}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001530
Willy Tarreaubaaee002006-06-26 02:48:02 +02001531int main(int argc, char **argv)
1532{
1533 int err, retry;
1534 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001535 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02001536 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001537
Emeric Bruncf20bf12010-10-22 16:06:11 +02001538 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001539 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1540 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1541 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001542
Willy Tarreaue437c442010-03-17 18:02:46 +01001543 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1544 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1545 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001546 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001547 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001548
Willy Tarreaudc23a922011-02-16 11:10:36 +01001549 /* ulimits */
1550 if (!global.rlimit_nofile)
1551 global.rlimit_nofile = global.maxsock;
1552
1553 if (global.rlimit_nofile) {
1554 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1555 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
1556 Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile);
1557 }
1558 }
1559
1560 if (global.rlimit_memmax) {
1561 limit.rlim_cur = limit.rlim_max =
1562 global.rlimit_memmax * 1048576 / global.nbproc;
1563#ifdef RLIMIT_AS
1564 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1565 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1566 argv[0], global.rlimit_memmax);
1567 }
1568#else
1569 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1570 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1571 argv[0], global.rlimit_memmax);
1572 }
1573#endif
1574 }
1575
Willy Tarreaubaaee002006-06-26 02:48:02 +02001576 /* We will loop at most 100 times with 10 ms delay each time.
1577 * That's at most 1 second. We only send a signal to old pids
1578 * if we cannot grab at least one port.
1579 */
1580 retry = MAX_START_RETRIES;
1581 err = ERR_NONE;
1582 while (retry >= 0) {
1583 struct timeval w;
1584 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001585 /* exit the loop on no error or fatal error */
1586 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001587 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001588 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001589 break;
1590
1591 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1592 * listening sockets. So on those platforms, it would be wiser to
1593 * simply send SIGUSR1, which will not be undoable.
1594 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001595 if (tell_old_pids(SIGTTOU) == 0) {
1596 /* no need to wait if we can't contact old pids */
1597 retry = 0;
1598 continue;
1599 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001600 /* give some time to old processes to stop listening */
1601 w.tv_sec = 0;
1602 w.tv_usec = 10*1000;
1603 select(0, NULL, NULL, NULL, &w);
1604 retry--;
1605 }
1606
1607 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001608 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001609 if (retry != MAX_START_RETRIES && nb_oldpids) {
1610 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001611 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001612 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001613 exit(1);
1614 }
1615
1616 if (listeners == 0) {
1617 Alert("[%s.main()] No enabled listener found (check the <listen> keywords) ! Exiting.\n", argv[0]);
1618 /* Note: we don't have to send anything to the old pids because we
1619 * never stopped them. */
1620 exit(1);
1621 }
1622
Emeric Bruncf20bf12010-10-22 16:06:11 +02001623 err = protocol_bind_all(errmsg, sizeof(errmsg));
1624 if ((err & ~ERR_WARN) != ERR_NONE) {
1625 if ((err & ERR_ALERT) || (err & ERR_WARN))
1626 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1627
Willy Tarreaudd815982007-10-16 12:25:14 +02001628 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1629 protocol_unbind_all(); /* cleanup everything we can */
1630 if (nb_oldpids)
1631 tell_old_pids(SIGTTIN);
1632 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001633 } else if (err & ERR_WARN) {
1634 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001635 }
1636
Willy Tarreaubaaee002006-06-26 02:48:02 +02001637 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001638 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1639 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001640
Willy Tarreaubaaee002006-06-26 02:48:02 +02001641 /* MODE_QUIET can inhibit alerts and warnings below this line */
1642
1643 global.mode &= ~MODE_STARTING;
1644 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1645 /* detach from the tty */
1646 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001647 }
1648
1649 /* open log & pid files before the chroot */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001650 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001651 unlink(global.pidfile);
1652 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1653 if (pidfd < 0) {
1654 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1655 if (nb_oldpids)
1656 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001657 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001658 exit(1);
1659 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001660 }
1661
Willy Tarreaub38651a2007-03-24 17:24:39 +01001662#ifdef CONFIG_HAP_CTTPROXY
1663 if (global.last_checks & LSTCHK_CTTPROXY) {
1664 int ret;
1665
1666 ret = check_cttproxy_version();
1667 if (ret < 0) {
1668 Alert("[%s.main()] Cannot enable cttproxy.\n%s",
1669 argv[0],
1670 (ret == -1) ? " Incorrect module version.\n"
1671 : " Make sure you have enough permissions and that the module is loaded.\n");
Willy Tarreaudd815982007-10-16 12:25:14 +02001672 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001673 exit(1);
1674 }
1675 }
1676#endif
1677
1678 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1679 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001680 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001681 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001682 exit(1);
1683 }
1684
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001685 /* If the user is not root, we'll still let him try the configuration
1686 * but we inform him that unexpected behaviour may occur.
1687 */
1688 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1689 Warning("[%s.main()] Some options which require full privileges"
1690 " might not work well.\n"
1691 "", argv[0]);
1692
Willy Tarreauf223cc02007-10-15 18:57:08 +02001693 /* chroot if needed */
1694 if (global.chroot != NULL) {
Willy Tarreau21337822012-04-29 14:11:38 +02001695 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Willy Tarreauf223cc02007-10-15 18:57:08 +02001696 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1697 if (nb_oldpids)
1698 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001699 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001700 exit(1);
1701 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02001702 }
1703
Willy Tarreaubaaee002006-06-26 02:48:02 +02001704 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001705 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001706
1707 /* Note that any error at this stage will be fatal because we will not
1708 * be able to restart the old pids.
1709 */
1710
1711 /* setgid / setuid */
Michael Schererab012dd2013-01-12 18:35:19 +01001712 if (global.gid) {
1713 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
1714 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
1715 " without 'uid'/'user' is generally useless.\n", argv[0]);
1716
1717 if (setgid(global.gid) == -1) {
1718 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
1719 protocol_unbind_all();
1720 exit(1);
1721 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001722 }
1723
1724 if (global.uid && setuid(global.uid) == -1) {
1725 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001726 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001727 exit(1);
1728 }
1729
1730 /* check ulimits */
1731 limit.rlim_cur = limit.rlim_max = 0;
1732 getrlimit(RLIMIT_NOFILE, &limit);
1733 if (limit.rlim_cur < global.maxsock) {
1734 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 +02001735 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001736 }
1737
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001738 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001739 struct proxy *px;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001740 int ret = 0;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001741 int *children = calloc(global.nbproc, sizeof(int));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001742 int proc;
1743
1744 /* the father launches the required number of processes */
1745 for (proc = 0; proc < global.nbproc; proc++) {
1746 ret = fork();
1747 if (ret < 0) {
1748 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001749 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001750 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001751 }
1752 else if (ret == 0) /* child breaks here */
1753 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001754 children[proc] = ret;
Willy Tarreau269ab312012-09-05 08:02:48 +02001755 if (pidfd >= 0) {
1756 char pidstr[100];
1757 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01001758 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001759 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001760 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001761 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001762
1763#ifdef USE_CPU_AFFINITY
1764 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02001765 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Willy Tarreaufc6c0322012-11-16 16:12:27 +01001766 global.cpu_map[proc]) /* only do this if the process has a CPU map */
1767 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
1768#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001769 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02001770 if (pidfd >= 0) {
1771 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
1772 close(pidfd);
1773 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02001774
1775 /* We won't ever use this anymore */
1776 free(oldpids); oldpids = NULL;
1777 free(global.chroot); global.chroot = NULL;
1778 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001779
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001780 /* we might have to unbind some proxies from some processes */
1781 px = proxy;
1782 while (px != NULL) {
1783 if (px->bind_proc && px->state != PR_STSTOPPED) {
Willy Tarreaua9db57e2013-01-18 11:29:29 +01001784 if (!(px->bind_proc & (1UL << proc)))
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001785 stop_proxy(px);
1786 }
1787 px = px->next;
1788 }
1789
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001790 if (proc == global.nbproc) {
1791 if (global.mode & MODE_SYSTEMD) {
Simone Gottib7f1cfc2014-06-11 00:15:51 +02001792 protocol_unbind_all();
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001793 for (proc = 0; proc < global.nbproc; proc++)
1794 while (waitpid(children[proc], NULL, 0) == -1 && errno == EINTR);
1795 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001796 exit(0); /* parent must leave */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001797 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001798
Dirkjan Bussink07fcaaa2014-04-28 22:57:16 +00001799 free(children);
1800 children = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001801 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
1802 * that we can detach from the TTY. We MUST NOT do it in other cases since
1803 * it would have already be done, and 0-2 would have been affected to listening
1804 * sockets
1805 */
Willy Tarreau106cb762008-11-16 07:40:34 +01001806 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001807 /* detach from the tty */
1808 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01001809 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001810 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
1811 }
1812 pid = getpid(); /* update child's pid */
1813 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02001814 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001815 }
1816
Willy Tarreaudd815982007-10-16 12:25:14 +02001817 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001818 /*
1819 * That's it : the central polling loop. Run until we stop.
1820 */
1821 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001822
1823 /* Free all Hash Keys and all Hash elements */
1824 appsession_cleanup();
1825 /* Do some cleanup */
1826 deinit();
1827
1828 exit(0);
1829}
1830
1831
1832/*
1833 * Local variables:
1834 * c-indent-level: 8
1835 * c-basic-offset: 8
1836 * End:
1837 */