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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau65e94d12018-08-02 18:12:50 +02003 * Copyright 2000-2018 Willy Tarreau <willy@haproxy.org>.
Willy Tarreaubaaee002006-06-26 02:48:02 +02004 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 *
Lukas Tribus23953682017-04-28 13:24:30 +000010 * Please refer to RFC7230 - RFC7235 informations about HTTP protocol, and
11 * RFC6265 for informations about cookies usage. More generally, the IETF HTTP
Willy Tarreaubaaee002006-06-26 02:48:02 +020012 * Working Group's web site should be consulted for protocol related changes :
13 *
14 * http://ftp.ics.uci.edu/pub/ietf/http/
15 *
16 * Pending bugs (may be not fixed because never reproduced) :
17 * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes
18 * the proxy to terminate (no core) if the client breaks the connection during
19 * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to
20 * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be
21 * related to missing setsid() (fixed in 1.1.15)
22 * - a proxy with an invalid config will prevent the startup even if disabled.
23 *
24 * ChangeLog has moved to the CHANGELOG file.
25 *
Willy Tarreaubaaee002006-06-26 02:48:02 +020026 */
27
David Carlier7ece0962015-12-08 21:43:09 +000028#define _GNU_SOURCE
Willy Tarreaubaaee002006-06-26 02:48:02 +020029#include <stdio.h>
30#include <stdlib.h>
31#include <unistd.h>
32#include <string.h>
33#include <ctype.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020034#include <dirent.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020035#include <sys/stat.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020036#include <sys/time.h>
37#include <sys/types.h>
38#include <sys/socket.h>
39#include <netinet/tcp.h>
40#include <netinet/in.h>
41#include <arpa/inet.h>
Olivier Houchardf73629d2017-04-05 22:33:04 +020042#include <net/if.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020043#include <netdb.h>
44#include <fcntl.h>
45#include <errno.h>
46#include <signal.h>
47#include <stdarg.h>
48#include <sys/resource.h>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010049#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020050#include <time.h>
51#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010052#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010053#ifdef USE_CPU_AFFINITY
Willy Tarreaufc6c0322012-11-16 16:12:27 +010054#include <sched.h>
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020055#ifdef __FreeBSD__
56#include <sys/param.h>
57#include <sys/cpuset.h>
David Carlier6d5c8412017-11-29 11:02:32 +000058#include <pthread_np.h>
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020059#endif
Willy Tarreaufc6c0322012-11-16 16:12:27 +010060#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020061
62#ifdef DEBUG_FULL
63#include <assert.h>
64#endif
Tim Duesterhusd6942c82017-11-20 15:58:35 +010065#if defined(USE_SYSTEMD)
66#include <systemd/sd-daemon.h>
67#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020068
Willy Tarreau2dd0d472006-06-29 17:53:05 +020069#include <common/base64.h>
70#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020071#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020072#include <common/compat.h>
73#include <common/config.h>
74#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010075#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020076#include <common/memory.h>
77#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010078#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020079#include <common/regex.h>
80#include <common/standard.h>
81#include <common/time.h>
82#include <common/uri_auth.h>
83#include <common/version.h>
Christopher Fauletbe0faa22017-08-29 15:37:10 +020084#include <common/hathreads.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020085
86#include <types/capture.h>
William Lallemandce83b4a2018-10-26 14:47:30 +020087#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020088#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020089#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090090#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020091#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020092
Willy Tarreau0fc45a72007-06-17 00:36:03 +020093#include <proto/acl.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020094#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020095#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020096#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020097#include <proto/channel.h>
William Lallemandce83b4a2018-10-26 14:47:30 +020098#include <proto/cli.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +020099#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200100#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200101#include <proto/filters.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +0200102#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100103#include <proto/hlua.h>
Willy Tarreau61c112a2018-10-02 16:43:32 +0200104#include <proto/http_rules.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200105#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200106#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100107#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200108#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +0100109#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200110#include <proto/proxy.h>
111#include <proto/queue.h>
112#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200113#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200114#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200115#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200116#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200117#include <proto/dns.h>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100118#include <proto/vars.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200119#ifdef USE_OPENSSL
Grant Zhang872f9c22017-01-21 01:10:18 +0000120#include <proto/ssl_sock.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200121#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200122
Willy Tarreau477ecd82010-01-03 21:12:30 +0100123/* list of config files */
124static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200125int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100126int relative_pid = 1; /* process id starting at 1 */
Willy Tarreau387bd4f2017-11-10 19:08:14 +0100127unsigned long pid_bit = 1; /* bit corresponding to the process id */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200128
Olivier Houchard79321b92018-07-26 17:55:11 +0200129volatile unsigned long sleeping_thread_mask; /* Threads that are about to sleep in poll() */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200130/* global options */
131struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100132 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100133 .nbproc = 1,
Christopher Fauletbe0faa22017-08-29 15:37:10 +0200134 .nbthread = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200135 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200136 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100137 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100138 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100139 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200140 .unix_bind = {
141 .ux = {
142 .uid = -1,
143 .gid = -1,
144 .mode = 0,
145 }
146 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200147 .tune = {
148 .bufsize = BUFSIZE,
Willy Tarreau27097842015-09-28 13:53:23 +0200149 .maxrewrite = -1,
Willy Tarreau43961d52010-10-04 20:39:20 +0200150 .chksize = BUFSIZE,
Willy Tarreaua24adf02014-11-27 01:11:56 +0100151 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200152 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200153#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100154 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200155#endif
William Lallemandf3747832012-11-09 12:33:10 +0100156 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100157#ifdef DEFAULT_IDLE_TIMER
158 .idle_timer = DEFAULT_IDLE_TIMER,
159#else
160 .idle_timer = 1000, /* 1 second */
161#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200162 },
Emeric Brun76d88952012-10-05 15:47:31 +0200163#ifdef USE_OPENSSL
164#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200165 .maxsslconn = DEFAULT_MAXSSLCONN,
166#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200167#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200168 /* others NULL OK */
169};
170
Willy Tarreaud80cb4e2018-01-20 19:30:13 +0100171struct activity activity[MAX_THREADS] __attribute__((aligned(64))) = { };
172
Willy Tarreaubaaee002006-06-26 02:48:02 +0200173/*********************************************************************/
174
175int stopping; /* non zero means stopping in progress */
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100176int killed; /* non zero means a hard-stop is triggered */
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
Olivier Houchardf73629d2017-04-05 22:33:04 +0200187/* Path to the unix socket we use to retrieve listener sockets from the old process */
188static const char *old_unixsocket;
189
William Lallemand85b0bd92017-06-01 17:38:53 +0200190static char *cur_unixsocket = NULL;
191
William Lallemandcb11fd22017-06-01 17:38:52 +0200192int atexit_flag = 0;
193
Willy Tarreaubb545b42010-08-25 12:58:59 +0200194int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200195const int zero = 0;
196const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200197const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200198
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100199char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200200char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200201
Willy Tarreau89efaed2013-12-13 15:14:55 +0100202/* used from everywhere just to drain results we don't want to read and which
203 * recent versions of gcc increasingly and annoyingly complain about.
204 */
205int shut_your_big_mouth_gcc_int = 0;
206
William Lallemand73b85e72017-06-01 17:38:51 +0200207int *children = NULL; /* store PIDs of children in master workers mode */
208
William Lallemand73b85e72017-06-01 17:38:51 +0200209static char **next_argv = NULL;
210
William Lallemandbc193052018-09-11 10:06:26 +0200211struct list proc_list = LIST_HEAD_INIT(proc_list);
212
213int master = 0; /* 1 if in master, 0 if in child */
214
William Lallemandbc193052018-09-11 10:06:26 +0200215struct mworker_proc *proc_self;
216
Willy Tarreau08ceb102011-07-24 22:58:00 +0200217/* list of the temporarily limited listeners because of lack of resource */
218struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200219struct task *global_listener_queue_task;
Olivier Houchard9f6af332018-05-25 14:04:04 +0200220static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200221
William Lallemandb3f2be32018-09-11 10:06:18 +0200222static void *run_thread_poll_loop(void *data);
223
Willy Tarreauff055502014-04-28 22:27:06 +0200224/* bitfield of a few warnings to emit just once (WARN_*) */
225unsigned int warned = 0;
226
William Lallemande7361152018-10-26 14:47:36 +0200227/* master CLI configuration (-S flag) */
228struct list mworker_cli_conf = LIST_HEAD_INIT(mworker_cli_conf);
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100229
230/* These are strings to be reported in the output of "haproxy -vv". They may
231 * either be constants (in which case must_free must be zero) or dynamically
232 * allocated strings to pass to free() on exit, and in this case must_free
233 * must be non-zero.
234 */
235struct list build_opts_list = LIST_HEAD_INIT(build_opts_list);
236struct build_opts_str {
237 struct list list;
238 const char *str;
239 int must_free;
240};
241
Willy Tarreaue6945732016-12-21 19:57:00 +0100242/* These functions are called just after the point where the program exits
243 * after a config validity check, so they are generally suited for resource
244 * allocation and slow initializations that should be skipped during basic
245 * config checks. The functions must return 0 on success, or a combination
246 * of ERR_* flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause
247 * and immediate exit, so the function must have emitted any useful error.
248 */
249struct list post_check_list = LIST_HEAD_INIT(post_check_list);
250struct post_check_fct {
251 struct list list;
252 int (*fct)();
253};
254
Willy Tarreau05554e62016-12-21 20:46:26 +0100255/* These functions are called when freeing the global sections at the end
256 * of deinit, after everything is stopped. They don't return anything, and
257 * they work in best effort mode as their sole goal is to make valgrind
258 * mostly happy.
259 */
260struct list post_deinit_list = LIST_HEAD_INIT(post_deinit_list);
261struct post_deinit_fct {
262 struct list list;
263 void (*fct)();
264};
265
Christopher Faulet415f6112017-07-25 16:52:58 +0200266/* These functions are called for each thread just after the thread creation
267 * and before running the scheduler. They should be used to do per-thread
268 * initializations. They must return 0 if an error occurred. */
269struct list per_thread_init_list = LIST_HEAD_INIT(per_thread_init_list);
270struct per_thread_init_fct {
271 struct list list;
272 int (*fct)();
273};
274
275/* These functions are called for each thread just after the scheduler loop and
276 * before exiting the thread. They don't return anything and, as for post-deinit
277 * functions, they work in best effort mode as their sole goal is to make
278 * valgrind mostly happy. */
279struct list per_thread_deinit_list = LIST_HEAD_INIT(per_thread_deinit_list);
280struct per_thread_deinit_fct {
281 struct list list;
282 void (*fct)();
283};
284
Willy Tarreaubaaee002006-06-26 02:48:02 +0200285/*********************************************************************/
286/* general purpose functions ***************************************/
287/*********************************************************************/
288
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100289/* used to register some build option strings at boot. Set must_free to
290 * non-zero if the string must be freed upon exit.
291 */
292void hap_register_build_opts(const char *str, int must_free)
293{
294 struct build_opts_str *b;
295
296 b = calloc(1, sizeof(*b));
297 if (!b) {
298 fprintf(stderr, "out of memory\n");
299 exit(1);
300 }
301 b->str = str;
302 b->must_free = must_free;
303 LIST_ADDQ(&build_opts_list, &b->list);
304}
305
Willy Tarreaue6945732016-12-21 19:57:00 +0100306/* used to register some initialization functions to call after the checks. */
307void hap_register_post_check(int (*fct)())
308{
309 struct post_check_fct *b;
310
311 b = calloc(1, sizeof(*b));
312 if (!b) {
313 fprintf(stderr, "out of memory\n");
314 exit(1);
315 }
316 b->fct = fct;
317 LIST_ADDQ(&post_check_list, &b->list);
318}
319
Willy Tarreau05554e62016-12-21 20:46:26 +0100320/* used to register some de-initialization functions to call after everything
321 * has stopped.
322 */
323void hap_register_post_deinit(void (*fct)())
324{
325 struct post_deinit_fct *b;
326
327 b = calloc(1, sizeof(*b));
328 if (!b) {
329 fprintf(stderr, "out of memory\n");
330 exit(1);
331 }
332 b->fct = fct;
333 LIST_ADDQ(&post_deinit_list, &b->list);
334}
335
Christopher Faulet415f6112017-07-25 16:52:58 +0200336/* used to register some initialization functions to call for each thread. */
337void hap_register_per_thread_init(int (*fct)())
338{
339 struct per_thread_init_fct *b;
340
341 b = calloc(1, sizeof(*b));
342 if (!b) {
343 fprintf(stderr, "out of memory\n");
344 exit(1);
345 }
346 b->fct = fct;
347 LIST_ADDQ(&per_thread_init_list, &b->list);
348}
349
350/* used to register some de-initialization functions to call for each thread. */
351void hap_register_per_thread_deinit(void (*fct)())
352{
353 struct per_thread_deinit_fct *b;
354
355 b = calloc(1, sizeof(*b));
356 if (!b) {
357 fprintf(stderr, "out of memory\n");
358 exit(1);
359 }
360 b->fct = fct;
361 LIST_ADDQ(&per_thread_deinit_list, &b->list);
362}
363
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100364static void display_version()
Willy Tarreaubaaee002006-06-26 02:48:02 +0200365{
366 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreau65e94d12018-08-02 18:12:50 +0200367 printf("Copyright 2000-2018 Willy Tarreau <willy@haproxy.org>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200368}
369
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100370static void display_build_opts()
Willy Tarreau7b066db2007-12-02 11:28:59 +0100371{
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100372 struct build_opts_str *item;
373
Willy Tarreau7b066db2007-12-02 11:28:59 +0100374 printf("Build options :"
375#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100376 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100377#endif
378#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100379 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100380#endif
381#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100382 "\n CC = " BUILD_CC
383#endif
384#ifdef BUILD_CFLAGS
385 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100386#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100387#ifdef BUILD_OPTIONS
388 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100389#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200390 "\n\nDefault settings :"
391 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
392 "\n\n",
393 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200394
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100395 list_for_each_entry(item, &build_opts_list, list) {
396 puts(item->str);
397 }
398
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100399 putchar('\n');
400
Willy Tarreaube5b6852009-10-03 18:57:08 +0200401 list_pollers(stdout);
402 putchar('\n');
Christopher Faulet98d9fe22018-04-10 14:37:32 +0200403 list_mux_proto(stdout);
404 putchar('\n');
Christopher Fauletb3f4e142016-03-07 12:46:38 +0100405 list_filters(stdout);
406 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100407}
408
Willy Tarreaubaaee002006-06-26 02:48:02 +0200409/*
410 * This function prints the command line usage and exits
411 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100412static void usage(char *name)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200413{
414 display_version();
415 fprintf(stderr,
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200416 "Usage : %s [-f <cfgfile|cfgdir>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200417 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200418 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100419 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200420 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200421 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200422 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200423 " -D goes daemon ; -C changes to <dir> before loading files.\n"
William Lallemand095ba4c2017-06-01 17:38:50 +0200424 " -W master-worker mode.\n"
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100425#if defined(USE_SYSTEMD)
426 " -Ws master-worker mode with systemd notify support.\n"
427#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200428 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200429 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200430 " -n sets the maximum total # of connections (%d)\n"
431 " -m limits the usable amount of memory (in MB)\n"
432 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200433 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200434 " -p writes pids of all children to this file\n"
435#if defined(ENABLE_EPOLL)
436 " -de disables epoll() usage even when available\n"
437#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200438#if defined(ENABLE_KQUEUE)
439 " -dk disables kqueue() usage even when available\n"
440#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200441#if defined(ENABLE_POLL)
442 " -dp disables poll() usage even when available\n"
443#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200444#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100445 " -dS disables splice usage (broken on old kernels)\n"
446#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200447#if defined(USE_GETADDRINFO)
448 " -dG disables getaddrinfo() usage\n"
449#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000450#if defined(SO_REUSEPORT)
451 " -dR disables SO_REUSEPORT usage\n"
452#endif
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100453 " -dr ignores server address resolution failures\n"
Emeric Brun850efd52014-01-29 12:24:34 +0100454 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200455 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Olivier Houchardf73629d2017-04-05 22:33:04 +0200456 " -x <unix_socket> get listening sockets from a unix socket\n"
William Lallemande7361152018-10-26 14:47:36 +0200457 " -S <unix_socket>[,<bind options>...] new stats socket for the master\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200458 "\n",
459 name, DEFAULT_MAXCONN, cfg_maxpconn);
460 exit(1);
461}
462
463
464
465/*********************************************************************/
466/* more specific functions ***************************************/
467/*********************************************************************/
468
William Lallemand73b85e72017-06-01 17:38:51 +0200469/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
470 * pids the signal was correctly delivered to.
471 */
472static int tell_old_pids(int sig)
473{
474 int p;
475 int ret = 0;
476 for (p = 0; p < nb_oldpids; p++)
477 if (kill(oldpids[p], sig) == 0)
478 ret++;
479 return ret;
480}
481
482/* return 1 if a pid is a current child otherwise 0 */
483
484int current_child(int pid)
485{
486 int i;
487
488 for (i = 0; i < global.nbproc; i++) {
489 if (children[i] == pid)
490 return 1;
491 }
492 return 0;
493}
494
William Lallemand73b85e72017-06-01 17:38:51 +0200495static void mworker_block_signals()
496{
497 sigset_t set;
498
499 sigemptyset(&set);
500 sigaddset(&set, SIGUSR1);
501 sigaddset(&set, SIGUSR2);
502 sigaddset(&set, SIGHUP);
William Lallemandebf304f2018-09-11 10:06:21 +0200503 sigaddset(&set, SIGCHLD);
William Lallemand6e1796e2018-06-07 11:23:40 +0200504 ha_sigmask(SIG_SETMASK, &set, NULL);
William Lallemand73b85e72017-06-01 17:38:51 +0200505}
506
507static void mworker_unblock_signals()
508{
William Lallemandd3801c12018-09-11 10:06:23 +0200509 haproxy_unblock_signals();
William Lallemand73b85e72017-06-01 17:38:51 +0200510}
511
William Lallemand73b85e72017-06-01 17:38:51 +0200512/*
513 * Send signal to every known children.
514 */
515
516static void mworker_kill(int sig)
517{
518 int i;
519
520 tell_old_pids(sig);
521 if (children) {
522 for (i = 0; i < global.nbproc; i++)
523 kill(children[i], sig);
524 }
William Lallemandbc193052018-09-11 10:06:26 +0200525}
526
527/*
528 * serialize the proc list and put it in the environment
529 */
530static void mworker_proc_list_to_env()
531{
532 char *msg = NULL;
533 struct mworker_proc *child;
534
535 list_for_each_entry(child, &proc_list, list) {
536 if (msg)
William Lallemandf1a62862018-10-26 14:47:29 +0200537 memprintf(&msg, "%s|type=worker;fd=%d;pid=%d;rpid=%d;reloads=%d", msg, child->ipc_fd[0], child->pid, child->relative_pid, child->reloads);
William Lallemandbc193052018-09-11 10:06:26 +0200538 else
William Lallemandf1a62862018-10-26 14:47:29 +0200539 memprintf(&msg, "type=worker;fd=%d;pid=%d;rpid=%d;reloads=%d", child->ipc_fd[0], child->pid, child->relative_pid, child->reloads);
William Lallemandbc193052018-09-11 10:06:26 +0200540 }
541 if (msg)
542 setenv("HAPROXY_CHILDREN", msg, 1);
543}
544
545/*
546 * unserialize the proc list from the environment
547 */
548static void mworker_env_to_proc_list()
549{
550 char *msg, *token = NULL, *s1;
551
552 msg = getenv("HAPROXY_CHILDREN");
553 if (!msg)
554 return;
555
556 while ((token = strtok_r(msg, "|", &s1))) {
557 struct mworker_proc *child;
558 char *subtoken = NULL;
559 char *s2;
560
561 msg = NULL;
562
563 child = calloc(1, sizeof(*child));
564
565 while ((subtoken = strtok_r(token, ";", &s2))) {
566
567 token = NULL;
568
569 if (strncmp(subtoken, "fd=", 3) == 0) {
570 child->ipc_fd[0] = atoi(subtoken+3);
571 } else if (strncmp(subtoken, "pid=", 4) == 0) {
572 child->pid = atoi(subtoken+4);
573 } else if (strncmp(subtoken, "rpid=", 5) == 0) {
574 child->relative_pid = atoi(subtoken+5);
William Lallemandf1a62862018-10-26 14:47:29 +0200575 } else if (strncmp(subtoken, "reloads=", 8) == 0) {
576 /* we reloaded this process once more */
577 child->reloads = atoi(subtoken+8) + 1;
William Lallemandbc193052018-09-11 10:06:26 +0200578 }
579 }
580 if (child->pid)
581 LIST_ADDQ(&proc_list, &child->list);
582 else
583 free(child);
584 }
585
586 unsetenv("HAPROXY_CHILDREN");
William Lallemand73b85e72017-06-01 17:38:51 +0200587}
588
Willy Tarreaubaaee002006-06-26 02:48:02 +0200589/*
William Lallemand75ea0a02017-11-15 19:02:58 +0100590 * Upon a reload, the master worker needs to close all listeners FDs but the mworker_pipe
591 * fd, and the FD provided by fd@
592 */
593static void mworker_cleanlisteners()
594{
595 struct listener *l, *l_next;
596 struct proxy *curproxy;
Willy Tarreau473cf5d2017-12-05 11:14:12 +0100597 struct peers *curpeers;
William Lallemand75ea0a02017-11-15 19:02:58 +0100598
William Lallemand3da97692018-09-11 10:06:19 +0200599 /* we might have to unbind some peers sections from some processes */
600 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
601 if (!curpeers->peers_fe)
602 continue;
Willy Tarreau473cf5d2017-12-05 11:14:12 +0100603
William Lallemand3da97692018-09-11 10:06:19 +0200604 stop_proxy(curpeers->peers_fe);
605 /* disable this peer section so that it kills itself */
606 signal_unregister_handler(curpeers->sighandler);
607 task_delete(curpeers->sync_task);
608 task_free(curpeers->sync_task);
609 curpeers->sync_task = NULL;
610 task_free(curpeers->peers_fe->task);
611 curpeers->peers_fe->task = NULL;
612 curpeers->peers_fe = NULL;
613 }
William Lallemand75ea0a02017-11-15 19:02:58 +0100614
William Lallemand91c13b62018-09-11 10:06:20 +0200615 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
William Lallemand75ea0a02017-11-15 19:02:58 +0100616 list_for_each_entry_safe(l, l_next, &curproxy->conf.listeners, by_fe) {
William Lallemande22f11f2018-09-11 10:06:27 +0200617 /* remove the listener, but not those we need in the master... */
William Lallemanddd319a52018-10-12 10:39:54 +0200618 if (!(l->options & LI_O_MWORKER)) {
619 /* unbind the listener but does not close if
620 the FD is inherited with fd@ from the parent
621 process */
622 if (l->options & LI_O_INHERITED)
623 unbind_listener_no_close(l);
624 else
625 unbind_listener(l);
William Lallemande22f11f2018-09-11 10:06:27 +0200626 delete_listener(l);
William Lallemanddd319a52018-10-12 10:39:54 +0200627 }
William Lallemand75ea0a02017-11-15 19:02:58 +0100628 }
629 }
630}
631
632
633/*
William Lallemand73b85e72017-06-01 17:38:51 +0200634 * remove a pid forom the olpid array and decrease nb_oldpids
635 * return 1 pid was found otherwise return 0
636 */
637
638int delete_oldpid(int pid)
639{
640 int i;
641
642 for (i = 0; i < nb_oldpids; i++) {
643 if (oldpids[i] == pid) {
644 oldpids[i] = oldpids[nb_oldpids - 1];
645 oldpids[nb_oldpids - 1] = 0;
646 nb_oldpids--;
647 return 1;
648 }
649 }
650 return 0;
651}
652
William Lallemand85b0bd92017-06-01 17:38:53 +0200653
654static void get_cur_unixsocket()
655{
656 /* if -x was used, try to update the stat socket if not available anymore */
657 if (global.stats_fe) {
658 struct bind_conf *bind_conf;
659
660 /* pass through all stats socket */
661 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
662 struct listener *l;
663
664 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
665
666 if (l->addr.ss_family == AF_UNIX &&
667 (bind_conf->level & ACCESS_FD_LISTENERS)) {
668 const struct sockaddr_un *un;
669
670 un = (struct sockaddr_un *)&l->addr;
671 /* priority to old_unixsocket */
672 if (!cur_unixsocket) {
673 cur_unixsocket = strdup(un->sun_path);
674 } else {
675 if (old_unixsocket && !strcmp(un->sun_path, old_unixsocket)) {
676 free(cur_unixsocket);
677 cur_unixsocket = strdup(old_unixsocket);
678 return;
679 }
680 }
681 }
682 }
683 }
684 }
685 if (!cur_unixsocket && old_unixsocket)
686 cur_unixsocket = strdup(old_unixsocket);
687}
688
William Lallemand73b85e72017-06-01 17:38:51 +0200689/*
690 * When called, this function reexec haproxy with -sf followed by current
691 * children PIDs and possibily old children PIDs if they didn't leave yet.
692 */
693static void mworker_reload()
694{
695 int next_argc = 0;
696 int j;
697 char *msg = NULL;
698
699 mworker_block_signals();
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100700#if defined(USE_SYSTEMD)
701 if (global.tune.options & GTUNE_USE_SYSTEMD)
702 sd_notify(0, "RELOADING=1");
703#endif
William Lallemand73b85e72017-06-01 17:38:51 +0200704 setenv("HAPROXY_MWORKER_REEXEC", "1", 1);
705
William Lallemandbc193052018-09-11 10:06:26 +0200706 mworker_proc_list_to_env(); /* put the children description in the env */
707
William Lallemand73b85e72017-06-01 17:38:51 +0200708 /* compute length */
709 while (next_argv[next_argc])
710 next_argc++;
711
William Lallemand85b0bd92017-06-01 17:38:53 +0200712 /* 1 for haproxy -sf, 2 for -x /socket */
713 next_argv = realloc(next_argv, (next_argc + 1 + 2 + global.nbproc + nb_oldpids + 1) * sizeof(char *));
William Lallemand73b85e72017-06-01 17:38:51 +0200714 if (next_argv == NULL)
715 goto alloc_error;
716
717
718 /* add -sf <PID>* to argv */
719 if (children || nb_oldpids > 0)
720 next_argv[next_argc++] = "-sf";
721 if (children) {
722 for (j = 0; j < global.nbproc; next_argc++,j++) {
723 next_argv[next_argc] = memprintf(&msg, "%d", children[j]);
724 if (next_argv[next_argc] == NULL)
725 goto alloc_error;
726 msg = NULL;
727 }
728 }
729 /* copy old process PIDs */
730 for (j = 0; j < nb_oldpids; next_argc++,j++) {
731 next_argv[next_argc] = memprintf(&msg, "%d", oldpids[j]);
732 if (next_argv[next_argc] == NULL)
733 goto alloc_error;
734 msg = NULL;
735 }
736 next_argv[next_argc] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200737
William Lallemand2bf6d622017-06-20 11:20:23 +0200738 /* add the -x option with the stat socket */
William Lallemand85b0bd92017-06-01 17:38:53 +0200739 if (cur_unixsocket) {
740
William Lallemand2bf6d622017-06-20 11:20:23 +0200741 next_argv[next_argc++] = "-x";
742 next_argv[next_argc++] = (char *)cur_unixsocket;
743 next_argv[next_argc++] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200744 }
745
William Lallemand123f1f62018-09-11 10:06:29 +0200746 if (getenv("HAPROXY_MWORKER_WAIT_ONLY") == NULL) {
747 struct per_thread_deinit_fct *ptdf;
748
749 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
750 ptdf->fct();
William Lallemandde0ff5a2018-09-11 10:06:24 +0200751 deinit_pollers(); /* we don't want to leak the poller fd */
William Lallemand123f1f62018-09-11 10:06:29 +0200752 }
William Lallemandb3f2be32018-09-11 10:06:18 +0200753
Christopher Faulet767a84b2017-11-24 16:50:31 +0100754 ha_warning("Reexecuting Master process\n");
Tim Duesterhus0436ab72017-11-12 17:39:18 +0100755 execvp(next_argv[0], next_argv);
William Lallemand73b85e72017-06-01 17:38:51 +0200756
Christopher Faulet767a84b2017-11-24 16:50:31 +0100757 ha_warning("Failed to reexecute the master process [%d]: %s\n", pid, strerror(errno));
William Lallemand722d4ca2017-11-15 19:02:55 +0100758 return;
759
William Lallemand73b85e72017-06-01 17:38:51 +0200760alloc_error:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100761 ha_warning("Failed to reexecute the master processs [%d]: Cannot allocate memory\n", pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200762 return;
763}
764
William Lallemand73b85e72017-06-01 17:38:51 +0200765/*
William Lallemandb3f2be32018-09-11 10:06:18 +0200766 * When called, this function reexec haproxy with -sf followed by current
767 * children PIDs and possibily old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200768 */
William Lallemandb3f2be32018-09-11 10:06:18 +0200769static void mworker_catch_sighup(struct sig_handler *sh)
William Lallemand73b85e72017-06-01 17:38:51 +0200770{
William Lallemandb3f2be32018-09-11 10:06:18 +0200771 mworker_reload();
772}
William Lallemand73b85e72017-06-01 17:38:51 +0200773
William Lallemandb3f2be32018-09-11 10:06:18 +0200774static void mworker_catch_sigterm(struct sig_handler *sh)
775{
776 int sig = sh->arg;
William Lallemand2f8b31c2017-11-15 19:02:56 +0100777
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100778#if defined(USE_SYSTEMD)
William Lallemandb3f2be32018-09-11 10:06:18 +0200779 if (global.tune.options & GTUNE_USE_SYSTEMD) {
780 sd_notify(0, "STOPPING=1");
781 }
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100782#endif
William Lallemandb3f2be32018-09-11 10:06:18 +0200783 ha_warning("Exiting Master process...\n");
784 mworker_kill(sig);
785}
William Lallemand73b85e72017-06-01 17:38:51 +0200786
William Lallemandb3f2be32018-09-11 10:06:18 +0200787/*
788 * Wait for every children to exit
789 */
William Lallemand73b85e72017-06-01 17:38:51 +0200790
William Lallemandb3f2be32018-09-11 10:06:18 +0200791static void mworker_catch_sigchld(struct sig_handler *sh)
792{
793 int exitpid = -1;
794 int status = 0;
William Lallemandbc193052018-09-11 10:06:26 +0200795 struct mworker_proc *child, *it;
William Lallemand73b85e72017-06-01 17:38:51 +0200796
William Lallemandb3f2be32018-09-11 10:06:18 +0200797restart_wait:
William Lallemand73b85e72017-06-01 17:38:51 +0200798
William Lallemandb3f2be32018-09-11 10:06:18 +0200799 exitpid = waitpid(-1, &status, WNOHANG);
800 if (exitpid > 0) {
William Lallemand73b85e72017-06-01 17:38:51 +0200801 if (WIFEXITED(status))
802 status = WEXITSTATUS(status);
803 else if (WIFSIGNALED(status))
804 status = 128 + WTERMSIG(status);
805 else if (WIFSTOPPED(status))
806 status = 128 + WSTOPSIG(status);
807 else
808 status = 255;
809
William Lallemandbc193052018-09-11 10:06:26 +0200810 list_for_each_entry_safe(child, it, &proc_list, list) {
811 if (child->pid != exitpid)
812 continue;
813
814 LIST_DEL(&child->list);
815 close(child->ipc_fd[0]);
816 free(child);
817 break;
818 }
819
William Lallemand73b85e72017-06-01 17:38:51 +0200820 if (!children) {
Tim Duesterhusd16f4502017-12-05 18:14:13 +0100821 ha_warning("Worker %d exited with code %d\n", exitpid, status);
William Lallemand73b85e72017-06-01 17:38:51 +0200822 } else {
823 /* check if exited child was in the current children list */
824 if (current_child(exitpid)) {
Tim Duesterhusd16f4502017-12-05 18:14:13 +0100825 ha_alert("Current worker %d exited with code %d\n", exitpid, status);
William Lallemand69f9b3b2017-06-01 17:38:54 +0200826 if (status != 0 && status != 130 && status != 143
William Lallemand4cfede82017-11-24 22:02:34 +0100827 && !(global.tune.options & GTUNE_NOEXIT_ONFAILURE)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100828 ha_alert("exit-on-failure: killing every workers with SIGTERM\n");
William Lallemand69f9b3b2017-06-01 17:38:54 +0200829 mworker_kill(SIGTERM);
830 }
William Lallemand73b85e72017-06-01 17:38:51 +0200831 } else {
Tim Duesterhusd16f4502017-12-05 18:14:13 +0100832 ha_warning("Former worker %d exited with code %d\n", exitpid, status);
William Lallemand73b85e72017-06-01 17:38:51 +0200833 delete_oldpid(exitpid);
834 }
835 }
William Lallemandb3f2be32018-09-11 10:06:18 +0200836 /* do it again to check if it was the last worker */
837 goto restart_wait;
William Lallemand73b85e72017-06-01 17:38:51 +0200838 }
William Lallemandb3f2be32018-09-11 10:06:18 +0200839 /* Better rely on the system than on a list of process to check if it was the last one */
840 else if (exitpid == -1 && errno == ECHILD) {
841 ha_warning("All workers exited. Exiting... (%d)\n", status);
842 atexit_flag = 0;
843 exit(status); /* parent must leave using the latest status code known */
844 }
845
William Lallemand73b85e72017-06-01 17:38:51 +0200846}
847
William Lallemandb3f2be32018-09-11 10:06:18 +0200848static void mworker_loop()
849{
850
851#if defined(USE_SYSTEMD)
852 if (global.tune.options & GTUNE_USE_SYSTEMD)
853 sd_notifyf(0, "READY=1\nMAINPID=%lu", (unsigned long)getpid());
854#endif
855
William Lallemandbc193052018-09-11 10:06:26 +0200856 master = 1;
857
William Lallemandb3f2be32018-09-11 10:06:18 +0200858 signal_register_fct(SIGTERM, mworker_catch_sigterm, SIGTERM);
859 signal_register_fct(SIGUSR1, mworker_catch_sigterm, SIGUSR1);
860 signal_register_fct(SIGINT, mworker_catch_sigterm, SIGINT);
861 signal_register_fct(SIGHUP, mworker_catch_sighup, SIGHUP);
862 signal_register_fct(SIGUSR2, mworker_catch_sighup, SIGUSR2);
863 signal_register_fct(SIGCHLD, mworker_catch_sigchld, SIGCHLD);
864
865 mworker_unblock_signals();
866 mworker_cleanlisteners();
867
William Lallemandbc193052018-09-11 10:06:26 +0200868 mworker_catch_sigchld(NULL); /* ensure we clean the children in case
869 some SIGCHLD were lost */
870
William Lallemandb3f2be32018-09-11 10:06:18 +0200871 global.nbthread = 1;
872 relative_pid = 1;
873 pid_bit = 1;
874
875 jobs++; /* this is the "master" job, we want to take care of the
876 signals even if there is no listener so the poll loop don't
877 leave */
878
879 fork_poller();
880 run_thread_poll_loop((int []){0});
881}
William Lallemandcb11fd22017-06-01 17:38:52 +0200882
883/*
William Lallemandf9cc07c2018-09-11 10:06:25 +0200884 * This function initialize haproxy for the master wait mode, it won't fork any
885 * new process and won't parse the configuration
886 */
887static int mworker_wait_mode()
888{
889
890 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
891
892 if (!(global.tune.options & GTUNE_USE_KQUEUE))
893 disable_poller("kqueue");
894
895 if (!(global.tune.options & GTUNE_USE_EPOLL))
896 disable_poller("epoll");
897
898 if (!(global.tune.options & GTUNE_USE_POLL))
899 disable_poller("poll");
900
901 if (!(global.tune.options & GTUNE_USE_SELECT))
902 disable_poller("select");
903
904 if (global.tune.maxpollevents <= 0)
905 global.tune.maxpollevents = MAX_POLL_EVENTS;
906
907 init_pollers();
908
909
910 mworker_loop();
911
912 /* should never be there */
913
914 return -1;
915}
916
917/*
William Lallemandcb11fd22017-06-01 17:38:52 +0200918 * Reexec the process in failure mode, instead of exiting
919 */
920void reexec_on_failure()
921{
922 if (!atexit_flag)
923 return;
924
925 setenv("HAPROXY_MWORKER_WAIT_ONLY", "1", 1);
926
Christopher Faulet767a84b2017-11-24 16:50:31 +0100927 ha_warning("Reexecuting Master process in waitpid mode\n");
William Lallemandcb11fd22017-06-01 17:38:52 +0200928 mworker_reload();
William Lallemandcb11fd22017-06-01 17:38:52 +0200929}
William Lallemand73b85e72017-06-01 17:38:51 +0200930
931
932/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200933 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
934 * a signal zero to all subscribers. This means that it's as easy as
935 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200936 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100937static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200938{
939 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200940 signal_unregister_handler(sh);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100941 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200942}
943
944/*
945 * upon SIGTTOU, we pause everything
946 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100947static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200948{
949 pause_proxies();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100950 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200951}
952
953/*
954 * upon SIGTTIN, let's have a soft stop.
955 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100956static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200957{
Willy Tarreaube58c382011-07-24 18:28:10 +0200958 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200959}
960
961/*
962 * this function dumps every server's state when the process receives SIGHUP.
963 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100964static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200965{
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100966 struct proxy *p = proxies_list;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200967
Christopher Faulet767a84b2017-11-24 16:50:31 +0100968 ha_warning("SIGHUP received, dumping servers states.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200969 while (p) {
970 struct server *s = p->srv;
971
972 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
973 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100974 chunk_printf(&trash,
975 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
976 p->id, s->id,
Emeric Brun52a91d32017-08-31 14:41:55 +0200977 (s->cur_state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100978 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200979 ha_warning("%s\n", trash.area);
980 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200981 s = s->next;
982 }
983
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200984 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
985 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100986 chunk_printf(&trash,
987 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
988 p->id,
989 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 +0200990 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100991 chunk_printf(&trash,
992 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
993 p->id,
994 (p->srv_bck) ? "is running on backup servers" : "has no server available",
995 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 +0200996 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100997 chunk_printf(&trash,
998 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
999 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
1000 p->id, p->srv_act, p->srv_bck,
1001 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 +02001002 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001003 ha_warning("%s\n", trash.area);
1004 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001005
1006 p = p->next;
1007 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001008}
1009
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001010static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001011{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001012 /* dump memory usage then free everything possible */
1013 dump_pools();
Willy Tarreaubafbe012017-11-24 17:34:44 +01001014 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001015}
1016
William Lallemande1340412017-12-28 16:09:36 +01001017/*
1018 * This function dup2 the stdio FDs (0,1,2) with <fd>, then closes <fd>
1019 * If <fd> < 0, it opens /dev/null and use it to dup
1020 *
1021 * In the case of chrooting, you have to open /dev/null before the chroot, and
1022 * pass the <fd> to this function
1023 */
1024static void stdio_quiet(int fd)
1025{
1026 if (fd < 0)
1027 fd = open("/dev/null", O_RDWR, 0);
1028
1029 if (fd > -1) {
1030 fclose(stdin);
1031 fclose(stdout);
1032 fclose(stderr);
1033
1034 dup2(fd, 0);
1035 dup2(fd, 1);
1036 dup2(fd, 2);
1037 if (fd > 2)
1038 close(fd);
1039 return;
1040 }
1041
1042 ha_alert("Cannot open /dev/null\n");
1043 exit(EXIT_FAILURE);
1044}
1045
1046
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001047/* This function check if cfg_cfgfiles containes directories.
1048 * If it find one, it add all the files (and only files) it containes
1049 * in cfg_cfgfiles in place of the directory (and remove the directory).
1050 * It add the files in lexical order.
1051 * It add only files with .cfg extension.
1052 * It doesn't add files with name starting with '.'
1053 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001054static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001055{
1056 struct wordlist *wl, *wlb;
1057 char *err = NULL;
1058
1059 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1060 struct stat file_stat;
1061 struct dirent **dir_entries = NULL;
1062 int dir_entries_nb;
1063 int dir_entries_it;
1064
1065 if (stat(wl->s, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001066 ha_alert("Cannot open configuration file/directory %s : %s\n",
1067 wl->s,
1068 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001069 exit(1);
1070 }
1071
1072 if (!S_ISDIR(file_stat.st_mode))
1073 continue;
1074
1075 /* from this point wl->s is a directory */
1076
1077 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
1078 if (dir_entries_nb < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001079 ha_alert("Cannot open configuration directory %s : %s\n",
1080 wl->s,
1081 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001082 exit(1);
1083 }
1084
1085 /* for each element in the directory wl->s */
1086 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
1087 struct dirent *dir_entry = dir_entries[dir_entries_it];
1088 char *filename = NULL;
1089 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
1090
1091 /* don't add filename that begin with .
1092 * only add filename with .cfg extention
1093 */
1094 if (dir_entry->d_name[0] == '.' ||
1095 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
1096 goto next_dir_entry;
1097
1098 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001099 ha_alert("Cannot load configuration files %s : out of memory.\n",
1100 filename);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001101 exit(1);
1102 }
1103
1104 if (stat(filename, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001105 ha_alert("Cannot open configuration file %s : %s\n",
1106 wl->s,
1107 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001108 exit(1);
1109 }
1110
1111 /* don't add anything else than regular file in cfg_cfgfiles
1112 * this way we avoid loops
1113 */
1114 if (!S_ISREG(file_stat.st_mode))
1115 goto next_dir_entry;
1116
1117 if (!list_append_word(&wl->list, filename, &err)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001118 ha_alert("Cannot load configuration files %s : %s\n",
1119 filename,
1120 err);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001121 exit(1);
1122 }
1123
1124next_dir_entry:
1125 free(filename);
1126 free(dir_entry);
1127 }
1128
1129 free(dir_entries);
1130
1131 /* remove the current directory (wl) from cfg_cfgfiles */
1132 free(wl->s);
1133 LIST_DEL(&wl->list);
1134 free(wl);
1135 }
1136
1137 free(err);
1138}
1139
Olivier Houchardf73629d2017-04-05 22:33:04 +02001140static int get_old_sockets(const char *unixsocket)
1141{
1142 char *cmsgbuf = NULL, *tmpbuf = NULL;
1143 int *tmpfd = NULL;
1144 struct sockaddr_un addr;
1145 struct cmsghdr *cmsg;
1146 struct msghdr msghdr;
1147 struct iovec iov;
1148 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +02001149 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +02001150 int sock = -1;
1151 int ret = -1;
1152 int ret2 = -1;
1153 int fd_nb;
1154 int got_fd = 0;
1155 int i = 0;
1156 size_t maxoff = 0, curoff = 0;
1157
1158 memset(&msghdr, 0, sizeof(msghdr));
1159 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
1160 if (!cmsgbuf) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001161 ha_warning("Failed to allocate memory to send sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001162 goto out;
1163 }
1164 sock = socket(PF_UNIX, SOCK_STREAM, 0);
1165 if (sock < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001166 ha_warning("Failed to connect to the old process socket '%s'\n",
1167 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001168 goto out;
1169 }
1170 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path));
1171 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
1172 addr.sun_family = PF_UNIX;
1173 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
1174 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001175 ha_warning("Failed to connect to the old process socket '%s'\n",
1176 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001177 goto out;
1178 }
Olivier Houchard54740872017-04-06 14:45:14 +02001179 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001180 iov.iov_base = &fd_nb;
1181 iov.iov_len = sizeof(fd_nb);
1182 msghdr.msg_iov = &iov;
1183 msghdr.msg_iovlen = 1;
1184 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
1185 /* First, get the number of file descriptors to be received */
1186 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001187 ha_warning("Failed to get the number of sockets to be transferred !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001188 goto out;
1189 }
1190 if (fd_nb == 0) {
1191 ret = 0;
1192 goto out;
1193 }
Olivier Houchardf143b802017-11-04 15:13:01 +01001194 tmpbuf = malloc(fd_nb * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int)));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001195 if (tmpbuf == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001196 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001197 goto out;
1198 }
1199 tmpfd = malloc(fd_nb * sizeof(int));
1200 if (tmpfd == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001201 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001202 goto out;
1203 }
1204 msghdr.msg_control = cmsgbuf;
1205 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
Olivier Houchardf143b802017-11-04 15:13:01 +01001206 iov.iov_len = MAX_SEND_FD * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001207 do {
1208 int ret3;
1209
1210 iov.iov_base = tmpbuf + curoff;
1211 ret = recvmsg(sock, &msghdr, 0);
1212 if (ret == -1 && errno == EINTR)
1213 continue;
1214 if (ret <= 0)
1215 break;
1216 /* Send an ack to let the sender know we got the sockets
1217 * and it can send some more
1218 */
1219 do {
1220 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
1221 } while (ret3 == -1 && errno == EINTR);
1222 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
1223 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
1224 if (cmsg->cmsg_level == SOL_SOCKET &&
1225 cmsg->cmsg_type == SCM_RIGHTS) {
1226 size_t totlen = cmsg->cmsg_len -
1227 CMSG_LEN(0);
1228 if (totlen / sizeof(int) + got_fd > fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001229 ha_warning("Got to many sockets !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001230 goto out;
1231 }
1232 /*
1233 * Be paranoid and use memcpy() to avoid any
1234 * potential alignement issue.
1235 */
1236 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
1237 got_fd += totlen / sizeof(int);
1238 }
1239 }
1240 curoff += ret;
1241 } while (got_fd < fd_nb);
1242
1243 if (got_fd != fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001244 ha_warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
1245 fd_nb, got_fd);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001246 goto out;
1247 }
1248 maxoff = curoff;
1249 curoff = 0;
1250 for (i = 0; i < got_fd; i++) {
1251 int fd = tmpfd[i];
1252 socklen_t socklen;
1253 int len;
1254
1255 xfer_sock = calloc(1, sizeof(*xfer_sock));
1256 if (!xfer_sock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001257 ha_warning("Failed to allocate memory in get_old_sockets() !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001258 break;
1259 }
1260 xfer_sock->fd = -1;
1261
1262 socklen = sizeof(xfer_sock->addr);
1263 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001264 ha_warning("Failed to get socket address\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001265 free(xfer_sock);
Olivier Houchardbe7b1ce2017-07-17 17:25:33 +02001266 xfer_sock = NULL;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001267 continue;
1268 }
1269 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001270 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001271 goto out;
1272 }
1273 len = tmpbuf[curoff++];
1274 if (len > 0) {
1275 /* We have a namespace */
1276 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001277 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001278 goto out;
1279 }
1280 xfer_sock->namespace = malloc(len + 1);
1281 if (!xfer_sock->namespace) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001282 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001283 goto out;
1284 }
1285 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
1286 xfer_sock->namespace[len] = 0;
1287 curoff += len;
1288 }
1289 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001290 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001291 goto out;
1292 }
1293 len = tmpbuf[curoff++];
1294 if (len > 0) {
1295 /* We have an interface */
1296 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001297 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001298 goto out;
1299 }
1300 xfer_sock->iface = malloc(len + 1);
1301 if (!xfer_sock->iface) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001302 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001303 goto out;
1304 }
1305 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
Olivier Houchard33e083c2018-03-15 17:48:49 +01001306 xfer_sock->iface[len] = 0;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001307 curoff += len;
1308 }
1309 if (curoff + sizeof(int) > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001310 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001311 goto out;
1312 }
1313 memcpy(&xfer_sock->options, &tmpbuf[curoff],
1314 sizeof(xfer_sock->options));
1315 curoff += sizeof(xfer_sock->options);
1316
1317 xfer_sock->fd = fd;
1318 if (xfer_sock_list)
1319 xfer_sock_list->prev = xfer_sock;
1320 xfer_sock->next = xfer_sock_list;
1321 xfer_sock->prev = NULL;
1322 xfer_sock_list = xfer_sock;
1323 xfer_sock = NULL;
1324 }
1325
1326 ret2 = 0;
1327out:
1328 /* If we failed midway make sure to close the remaining
1329 * file descriptors
1330 */
1331 if (tmpfd != NULL && i < got_fd) {
1332 for (; i < got_fd; i++) {
1333 close(tmpfd[i]);
1334 }
1335 }
1336 free(tmpbuf);
1337 free(tmpfd);
1338 free(cmsgbuf);
1339 if (sock != -1)
1340 close(sock);
1341 if (xfer_sock) {
1342 free(xfer_sock->namespace);
1343 free(xfer_sock->iface);
1344 if (xfer_sock->fd != -1)
1345 close(xfer_sock->fd);
1346 free(xfer_sock);
1347 }
1348 return (ret2);
1349}
1350
Willy Tarreaubaaee002006-06-26 02:48:02 +02001351/*
William Lallemand73b85e72017-06-01 17:38:51 +02001352 * copy and cleanup the current argv
1353 * Remove the -sf /-st parameters
1354 * Return an allocated copy of argv
1355 */
1356
1357static char **copy_argv(int argc, char **argv)
1358{
1359 char **newargv;
William Lallemand2bf6d622017-06-20 11:20:23 +02001360 int i = 0, j = 0;
William Lallemand73b85e72017-06-01 17:38:51 +02001361
1362 newargv = calloc(argc + 2, sizeof(char *));
1363 if (newargv == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001364 ha_warning("Cannot allocate memory\n");
William Lallemand73b85e72017-06-01 17:38:51 +02001365 return NULL;
1366 }
1367
William Lallemand2bf6d622017-06-20 11:20:23 +02001368 while (i < argc) {
1369 /* -sf or -st or -x */
William Lallemand29f690c2018-01-09 23:12:27 +01001370 if (i > 0 && argv[i][0] == '-' &&
1371 ((argv[i][1] == 's' && (argv[i][2] == 'f' || argv[i][2] == 't')) || argv[i][1] == 'x' )) {
William Lallemand2bf6d622017-06-20 11:20:23 +02001372 /* list of pids to finish ('f') or terminate ('t') or unix socket (-x) */
William Lallemand73b85e72017-06-01 17:38:51 +02001373 i++;
1374 while (i < argc && argv[i][0] != '-') {
1375 i++;
1376 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001377 continue;
William Lallemand73b85e72017-06-01 17:38:51 +02001378 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001379
1380 newargv[j++] = argv[i++];
William Lallemand73b85e72017-06-01 17:38:51 +02001381 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001382
William Lallemand73b85e72017-06-01 17:38:51 +02001383 return newargv;
1384}
1385
1386/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001387 * This function initializes all the necessary variables. It only returns
1388 * if everything is OK. If something fails, it exits.
1389 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001390static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001391{
Willy Tarreaubaaee002006-06-26 02:48:02 +02001392 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001393 char *tmp;
1394 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +02001395 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +02001396 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +01001397 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +00001398 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +02001399 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +02001400 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +01001401 struct post_check_fct *pcf;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001402
Christopher Faulete3a5e352017-10-24 13:53:54 +02001403 global.mode = MODE_STARTING;
William Lallemand73b85e72017-06-01 17:38:51 +02001404 next_argv = copy_argv(argc, argv);
1405
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001406 if (!init_trash_buffers(1)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001407 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet748919a2017-07-26 14:59:46 +02001408 exit(1);
1409 }
David du Colombier7af46052012-05-16 14:16:48 +02001410
Emeric Brun2b920a12010-09-23 18:30:22 +02001411 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
1412 * the string in case of truncation, and at least FreeBSD appears not to do
1413 * it.
1414 */
1415 memset(hostname, 0, sizeof(hostname));
1416 gethostname(hostname, sizeof(hostname) - 1);
1417 memset(localpeer, 0, sizeof(localpeer));
1418 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
William Lallemanddaf4cd22018-04-17 16:46:13 +02001419 setenv("HAPROXY_LOCALPEER", localpeer, 1);
Emeric Brun2b920a12010-09-23 18:30:22 +02001420
Willy Tarreaubaaee002006-06-26 02:48:02 +02001421 /*
1422 * Initialize the previously static variables.
1423 */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001424
Willy Tarreau173d9952018-01-26 21:48:23 +01001425 totalconn = actconn = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001426 killed = 0;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001427
Willy Tarreaubaaee002006-06-26 02:48:02 +02001428
1429#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +01001430 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001431#endif
1432
Benoit GARNIERb413c2a2016-03-27 11:08:03 +02001433 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001434 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001435 start_date = now;
1436
Willy Tarreau84310e22014-02-14 11:59:04 +01001437 srandom(now_ms - getpid());
1438
Dragan Dosen835b9212016-02-12 13:23:03 +01001439 init_log();
Willy Tarreau29857942009-05-10 09:01:21 +02001440 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +01001441 if (init_acl() != 0)
1442 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001443 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +02001444 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +02001445 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001446 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +02001447 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001448 init_pendconn();
Willy Tarreau04f1e2d2018-09-10 18:04:24 +02001449 if (!init_http(&err_msg)) {
1450 ha_alert("%s. Aborting.\n", err_msg);
1451 free(err_msg);
1452 abort();
1453 }
Willy Tarreau80587432006-12-24 17:47:20 +01001454 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001455
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001456 /* Initialise lua. */
1457 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001458
Christopher Fauletff2613e2016-11-09 11:36:17 +01001459 /* Initialize process vars */
1460 vars_init(&global.vars, SCOPE_PROC);
1461
Willy Tarreau43b78992009-01-25 15:42:27 +01001462 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001463#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001464 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001465#endif
1466#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001467 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001468#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001469#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +01001470 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001471#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001472#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001473 global.tune.options |= GTUNE_USE_SPLICE;
1474#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001475#if defined(USE_GETADDRINFO)
1476 global.tune.options |= GTUNE_USE_GAI;
1477#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001478#if defined(SO_REUSEPORT)
1479 global.tune.options |= GTUNE_USE_REUSEPORT;
1480#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001481
1482 pid = getpid();
1483 progname = *argv;
1484 while ((tmp = strchr(progname, '/')) != NULL)
1485 progname = tmp + 1;
1486
Kevinm48936af2010-12-22 16:08:21 +00001487 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +02001488 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +00001489
Willy Tarreaubaaee002006-06-26 02:48:02 +02001490 argc--; argv++;
1491 while (argc > 0) {
1492 char *flag;
1493
1494 if (**argv == '-') {
1495 flag = *argv+1;
1496
1497 /* 1 arg */
1498 if (*flag == 'v') {
1499 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +01001500 if (flag[1] == 'v') /* -vv */
1501 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001502 exit(0);
1503 }
1504#if defined(ENABLE_EPOLL)
1505 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +01001506 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001507#endif
1508#if defined(ENABLE_POLL)
1509 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +01001510 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001511#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +02001512#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001513 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +01001514 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001515#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001516#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001517 else if (*flag == 'd' && flag[1] == 'S')
1518 global.tune.options &= ~GTUNE_USE_SPLICE;
1519#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001520#if defined(USE_GETADDRINFO)
1521 else if (*flag == 'd' && flag[1] == 'G')
1522 global.tune.options &= ~GTUNE_USE_GAI;
1523#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001524#if defined(SO_REUSEPORT)
1525 else if (*flag == 'd' && flag[1] == 'R')
1526 global.tune.options &= ~GTUNE_USE_REUSEPORT;
1527#endif
Emeric Brun850efd52014-01-29 12:24:34 +01001528 else if (*flag == 'd' && flag[1] == 'V')
1529 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001530 else if (*flag == 'V')
1531 arg_mode |= MODE_VERBOSE;
1532 else if (*flag == 'd' && flag[1] == 'b')
1533 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +02001534 else if (*flag == 'd' && flag[1] == 'M')
1535 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +01001536 else if (*flag == 'd' && flag[1] == 'r')
1537 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001538 else if (*flag == 'd')
1539 arg_mode |= MODE_DEBUG;
1540 else if (*flag == 'c')
1541 arg_mode |= MODE_CHECK;
William Lallemand095ba4c2017-06-01 17:38:50 +02001542 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +02001543 arg_mode |= MODE_DAEMON;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001544 else if (*flag == 'W' && flag[1] == 's') {
Lukas Tribusf46bf952017-11-21 12:39:34 +01001545 arg_mode |= MODE_MWORKER | MODE_FOREGROUND;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001546#if defined(USE_SYSTEMD)
1547 global.tune.options |= GTUNE_USE_SYSTEMD;
1548#else
Christopher Faulet767a84b2017-11-24 16:50:31 +01001549 ha_alert("master-worker mode with systemd support (-Ws) requested, but not compiled. Use master-worker mode (-W) if you are not using Type=notify in your unit file or recompile with USE_SYSTEMD=1.\n\n");
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001550 usage(progname);
1551#endif
1552 }
William Lallemand095ba4c2017-06-01 17:38:50 +02001553 else if (*flag == 'W')
1554 arg_mode |= MODE_MWORKER;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001555 else if (*flag == 'q')
1556 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001557 else if (*flag == 'x') {
William Lallemand45eff442017-06-19 15:57:55 +02001558 if (argc <= 1 || argv[1][0] == '-') {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001559 ha_alert("Unix socket path expected with the -x flag\n\n");
William Lallemand45eff442017-06-19 15:57:55 +02001560 usage(progname);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001561 }
William Lallemand4fc09692017-06-19 16:37:19 +02001562 if (old_unixsocket)
Christopher Faulet767a84b2017-11-24 16:50:31 +01001563 ha_warning("-x option already set, overwriting the value\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001564 old_unixsocket = argv[1];
William Lallemand4fc09692017-06-19 16:37:19 +02001565
Olivier Houchardf73629d2017-04-05 22:33:04 +02001566 argv++;
1567 argc--;
1568 }
William Lallemande7361152018-10-26 14:47:36 +02001569 else if (*flag == 'S') {
1570 struct wordlist *c;
1571
1572 if (argc <= 1 || argv[1][0] == '-') {
1573 ha_alert("Socket and optional bind parameters expected with the -S flag\n");
1574 usage(progname);
1575 }
1576 if ((c = malloc(sizeof(*c))) == NULL || (c->s = strdup(argv[1])) == NULL) {
1577 ha_alert("Cannot allocate memory\n");
1578 exit(EXIT_FAILURE);
1579 }
1580 LIST_ADD(&mworker_cli_conf, &c->list);
1581
1582 argv++;
1583 argc--;
1584 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001585 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
1586 /* list of pids to finish ('f') or terminate ('t') */
1587
1588 if (flag[1] == 'f')
1589 oldpids_sig = SIGUSR1; /* finish then exit */
1590 else
1591 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001592 while (argc > 1 && argv[1][0] != '-') {
Chris Lane236062f2018-02-05 23:15:44 +00001593 char * endptr = NULL;
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001594 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
1595 if (!oldpids) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001596 ha_alert("Cannot allocate old pid : out of memory.\n");
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001597 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001598 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001599 argc--; argv++;
Chris Lane236062f2018-02-05 23:15:44 +00001600 errno = 0;
1601 oldpids[nb_oldpids] = strtol(*argv, &endptr, 10);
1602 if (errno) {
1603 ha_alert("-%2s option: failed to parse {%s}: %s\n",
1604 flag,
1605 *argv, strerror(errno));
1606 exit(1);
1607 } else if (endptr && strlen(endptr)) {
1608 while (isspace(*endptr)) endptr++;
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001609 if (*endptr != 0) {
Chris Lane236062f2018-02-05 23:15:44 +00001610 ha_alert("-%2s option: some bytes unconsumed in PID list {%s}\n",
1611 flag, endptr);
1612 exit(1);
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001613 }
Chris Lane236062f2018-02-05 23:15:44 +00001614 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001615 if (oldpids[nb_oldpids] <= 0)
1616 usage(progname);
1617 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001618 }
1619 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001620 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
1621 /* now that's a cfgfile list */
1622 argv++; argc--;
1623 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001624 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001625 ha_alert("Cannot load configuration file/directory %s : %s\n",
1626 *argv,
1627 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +02001628 exit(1);
1629 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001630 argv++; argc--;
1631 }
1632 break;
1633 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001634 else { /* >=2 args */
1635 argv++; argc--;
1636 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001637 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001638
1639 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +02001640 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001641 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +01001642 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001643 case 'N' : cfg_maxpconn = atol(*argv); break;
William Lallemanddaf4cd22018-04-17 16:46:13 +02001644 case 'L' :
1645 strncpy(localpeer, *argv, sizeof(localpeer) - 1);
1646 setenv("HAPROXY_LOCALPEER", localpeer, 1);
1647 break;
Willy Tarreau5d01a632009-06-22 16:02:30 +02001648 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +02001649 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001650 ha_alert("Cannot load configuration file/directory %s : %s\n",
1651 *argv,
1652 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +02001653 exit(1);
1654 }
Willy Tarreau5d01a632009-06-22 16:02:30 +02001655 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001656 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001657 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001658 }
1659 }
1660 }
1661 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001662 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001663 argv++; argc--;
1664 }
1665
Christopher Faulete3a5e352017-10-24 13:53:54 +02001666 global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
1667 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001668
William Lallemandcb11fd22017-06-01 17:38:52 +02001669 /* Master workers wait mode */
1670 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_WAIT_ONLY") != NULL)) {
1671
1672 unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
William Lallemandf9cc07c2018-09-11 10:06:25 +02001673 mworker_wait_mode();
William Lallemandcb11fd22017-06-01 17:38:52 +02001674 }
1675
1676 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") != NULL)) {
1677 atexit_flag = 1;
1678 atexit(reexec_on_failure);
1679 }
1680
Willy Tarreau576132e2011-09-10 19:26:56 +02001681 if (change_dir && chdir(change_dir) < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001682 ha_alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
Willy Tarreau576132e2011-09-10 19:26:56 +02001683 exit(1);
1684 }
1685
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001686 /* handle cfgfiles that are actualy directories */
1687 cfgfiles_expand_directories();
1688
1689 if (LIST_ISEMPTY(&cfg_cfgfiles))
1690 usage(progname);
1691
Willy Tarreaubaaee002006-06-26 02:48:02 +02001692 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001693
1694 init_default_instance();
1695
Willy Tarreau477ecd82010-01-03 21:12:30 +01001696 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +01001697 int ret;
1698
Willy Tarreau477ecd82010-01-03 21:12:30 +01001699 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +01001700 if (ret == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001701 ha_alert("Could not open configuration file %s : %s\n",
1702 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +01001703 exit(1);
1704 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +01001705 if (ret & (ERR_ABORT|ERR_FATAL))
Christopher Faulet767a84b2017-11-24 16:50:31 +01001706 ha_alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +01001707 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +02001708 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +02001709 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001710 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001711
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001712 /* do not try to resolve arguments nor to spot inconsistencies when
1713 * the configuration contains fatal errors caused by files not found
1714 * or failed memory allocations.
1715 */
1716 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001717 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001718 exit(1);
1719 }
1720
William Lallemandce83b4a2018-10-26 14:47:30 +02001721 if (global.mode & MODE_MWORKER) {
1722 int proc;
William Lallemande7361152018-10-26 14:47:36 +02001723 struct wordlist *it, *c;
William Lallemandce83b4a2018-10-26 14:47:30 +02001724
1725 for (proc = 0; proc < global.nbproc; proc++) {
1726 struct mworker_proc *tmproc;
1727
1728 tmproc = malloc(sizeof(*tmproc));
1729 if (!tmproc) {
1730 ha_alert("Cannot allocate process structures.\n");
1731 exit(EXIT_FAILURE);
1732 }
1733
1734 tmproc->pid = -1;
1735 tmproc->reloads = 0;
1736 tmproc->relative_pid = 1 + proc;
1737
1738 if (mworker_cli_sockpair_new(tmproc, proc) < 0) {
1739 exit(EXIT_FAILURE);
1740 }
1741
1742 LIST_ADDQ(&proc_list, &tmproc->list);
1743 }
William Lallemand1b663612018-10-26 14:47:33 +02001744 mworker_env_to_proc_list(); /* get the info of the children in the env */
William Lallemand8a022572018-10-26 14:47:35 +02001745
1746 if (mworker_cli_proxy_create() < 0) {
1747 ha_alert("Can't create the master's CLI.\n");
1748 exit(EXIT_FAILURE);
William Lallemande7361152018-10-26 14:47:36 +02001749 }
1750
1751 list_for_each_entry_safe(c, it, &mworker_cli_conf, list) {
1752
1753 if (mworker_cli_proxy_new_listener(c->s) < 0) {
1754 ha_alert("Can't create the master's CLI.\n");
1755 exit(EXIT_FAILURE);
1756 }
1757 LIST_DEL(&c->list);
1758 free(c->s);
1759 free(c);
William Lallemand8a022572018-10-26 14:47:35 +02001760 }
William Lallemande7361152018-10-26 14:47:36 +02001761
William Lallemandce83b4a2018-10-26 14:47:30 +02001762 }
1763
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +01001764 pattern_finalize_config();
1765
Willy Tarreaubb925012009-07-23 13:36:36 +02001766 err_code |= check_config_validity();
1767 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001768 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001769 exit(1);
1770 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001771
Willy Tarreau70060452015-12-14 12:46:07 +01001772 /* recompute the amount of per-process memory depending on nbproc and
1773 * the shared SSL cache size (allowed to exist in all processes).
1774 */
1775 if (global.rlimit_memmax_all) {
1776#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
1777 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
1778
1779 global.rlimit_memmax =
1780 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
1781 ssl_cache_bytes) / global.nbproc +
1782 ssl_cache_bytes + 1048575LL) / 1048576LL;
1783#else
1784 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
1785#endif
1786 }
1787
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001788#ifdef CONFIG_HAP_NS
1789 err_code |= netns_init();
1790 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001791 ha_alert("Failed to initialize namespace support.\n");
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001792 exit(1);
1793 }
1794#endif
1795
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001796 /* Apply server states */
1797 apply_server_state();
1798
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001799 for (px = proxies_list; px; px = px->next)
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001800 srv_compute_all_admin_states(px);
1801
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001802 /* Apply servers' configured address */
1803 err_code |= srv_init_addr();
1804 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001805 ha_alert("Failed to initialize server(s) addr.\n");
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001806 exit(1);
1807 }
1808
Willy Tarreaubaaee002006-06-26 02:48:02 +02001809 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001810 struct peers *pr;
1811 struct proxy *px;
1812
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001813 for (pr = cfg_peers; pr; pr = pr->next)
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001814 if (pr->peers_fe)
1815 break;
1816
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001817 for (px = proxies_list; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02001818 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001819 break;
1820
1821 if (pr || px) {
1822 /* At least one peer or one listener has been found */
1823 qfprintf(stdout, "Configuration file is valid\n");
1824 exit(0);
1825 }
1826 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
1827 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001828 }
1829
Emeric Brunc60def82017-09-27 14:59:38 +02001830 global_listener_queue_task = task_new(MAX_THREADS_MASK);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001831 if (!global_listener_queue_task) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001832 ha_alert("Out of memory when initializing global task\n");
Willy Tarreaue9b26022011-08-01 20:57:55 +02001833 exit(1);
1834 }
1835 /* very simple initialization, users will queue the task if needed */
1836 global_listener_queue_task->context = NULL; /* not even a context! */
1837 global_listener_queue_task->process = manage_global_listener_queue;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001838
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001839 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02001840 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02001841
Willy Tarreaue6945732016-12-21 19:57:00 +01001842 list_for_each_entry(pcf, &post_check_list, list) {
1843 err_code |= pcf->fct();
1844 if (err_code & (ERR_ABORT|ERR_FATAL))
1845 exit(1);
1846 }
1847
Willy Tarreaubaaee002006-06-26 02:48:02 +02001848 if (cfg_maxconn > 0)
1849 global.maxconn = cfg_maxconn;
1850
1851 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02001852 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001853 global.pidfile = strdup(cfg_pidfile);
1854 }
1855
Willy Tarreaud0256482015-01-15 21:45:22 +01001856 /* Now we want to compute the maxconn and possibly maxsslconn values.
1857 * It's a bit tricky. If memmax is not set, maxconn defaults to
1858 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
1859 *
1860 * If memmax is set, then it depends on which values are set. If
1861 * maxsslconn is set, we use memmax to determine how many cleartext
1862 * connections may be added, and set maxconn to the sum of the two.
1863 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1864 * the remaining amount of memory between memmax and the cleartext
1865 * connections. If neither are set, then it is considered that all
1866 * connections are SSL-capable, and maxconn is computed based on this,
1867 * then maxsslconn accordingly. We need to know if SSL is used on the
1868 * frontends, backends, or both, because when it's used on both sides,
1869 * we need twice the value for maxsslconn, but we only count the
1870 * handshake once since it is not performed on the two sides at the
1871 * same time (frontend-side is terminated before backend-side begins).
1872 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001873 * ssl_handshake_cost during its initialization. In any case, if
1874 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1875 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001876 */
1877 if (!global.rlimit_memmax) {
1878 if (global.maxconn == 0) {
1879 global.maxconn = DEFAULT_MAXCONN;
1880 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1881 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1882 }
1883 }
1884#ifdef USE_OPENSSL
1885 else if (!global.maxconn && !global.maxsslconn &&
1886 (global.ssl_used_frontend || global.ssl_used_backend)) {
1887 /* memmax is set, compute everything automatically. Here we want
1888 * to ensure that all SSL connections will be served. We take
1889 * care of the number of sides where SSL is used, and consider
1890 * the worst case : SSL used on both sides and doing a handshake
1891 * simultaneously. Note that we can't have more than maxconn
1892 * handshakes at a time by definition, so for the worst case of
1893 * two SSL conns per connection, we count a single handshake.
1894 */
1895 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1896 int64_t mem = global.rlimit_memmax * 1048576ULL;
1897
1898 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1899 mem -= global.maxzlibmem;
1900 mem = mem * MEM_USABLE_RATIO;
1901
1902 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001903 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001904 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1905 global.ssl_handshake_max_cost); // 1 handshake per connection max
1906
1907 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001908#ifdef SYSTEM_MAXCONN
1909 if (global.maxconn > DEFAULT_MAXCONN)
1910 global.maxconn = DEFAULT_MAXCONN;
1911#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001912 global.maxsslconn = sides * global.maxconn;
1913 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1914 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1915 global.maxconn, global.maxsslconn);
1916 }
1917 else if (!global.maxsslconn &&
1918 (global.ssl_used_frontend || global.ssl_used_backend)) {
1919 /* memmax and maxconn are known, compute maxsslconn automatically.
1920 * maxsslconn being forced, we don't know how many of it will be
1921 * on each side if both sides are being used. The worst case is
1922 * when all connections use only one SSL instance because
1923 * handshakes may be on two sides at the same time.
1924 */
1925 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1926 int64_t mem = global.rlimit_memmax * 1048576ULL;
1927 int64_t sslmem;
1928
1929 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1930 mem -= global.maxzlibmem;
1931 mem = mem * MEM_USABLE_RATIO;
1932
Willy Tarreau87b09662015-04-03 00:22:06 +02001933 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001934 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1935 global.maxsslconn = round_2dig(global.maxsslconn);
1936
1937 if (sslmem <= 0 || global.maxsslconn < sides) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001938 ha_alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1939 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1940 "without SSL is %d, but %d was found and SSL is in use.\n",
1941 global.rlimit_memmax,
1942 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
1943 global.maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001944 exit(1);
1945 }
1946
1947 if (global.maxsslconn > sides * global.maxconn)
1948 global.maxsslconn = sides * global.maxconn;
1949
1950 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1951 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1952 }
1953#endif
1954 else if (!global.maxconn) {
1955 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1956 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1957 int64_t mem = global.rlimit_memmax * 1048576ULL;
1958 int64_t clearmem;
1959
1960 if (global.ssl_used_frontend || global.ssl_used_backend)
1961 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1962
1963 mem -= global.maxzlibmem;
1964 mem = mem * MEM_USABLE_RATIO;
1965
1966 clearmem = mem;
1967 if (sides)
1968 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1969
Willy Tarreau87b09662015-04-03 00:22:06 +02001970 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001971 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001972#ifdef SYSTEM_MAXCONN
1973 if (global.maxconn > DEFAULT_MAXCONN)
1974 global.maxconn = DEFAULT_MAXCONN;
1975#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001976
1977 if (clearmem <= 0 || !global.maxconn) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001978 ha_alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
1979 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1980 "is %d, but %d was found.\n",
1981 global.rlimit_memmax,
1982 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
1983 global.maxsslconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001984 exit(1);
1985 }
1986
1987 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1988 if (sides && global.maxsslconn > sides * global.maxconn) {
1989 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
1990 "to be limited to %d. Better reduce global.maxsslconn to get more "
1991 "room for extra connections.\n", global.maxsslconn, global.maxconn);
1992 }
1993 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
1994 }
1995 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001996
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001997 if (!global.maxpipes) {
1998 /* maxpipes not specified. Count how many frontends and backends
1999 * may be using splicing, and bound that to maxconn.
2000 */
2001 struct proxy *cur;
2002 int nbfe = 0, nbbe = 0;
2003
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002004 for (cur = proxies_list; cur; cur = cur->next) {
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002005 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
2006 if (cur->cap & PR_CAP_FE)
2007 nbfe += cur->maxconn;
2008 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +01002009 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002010 }
2011 }
2012 global.maxpipes = MAX(nbfe, nbbe);
2013 if (global.maxpipes > global.maxconn)
2014 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +01002015 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002016 }
2017
2018
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002019 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002020 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01002021 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Emeric Brunece0c332017-12-06 13:51:49 +01002022 /* compute fd used by async engines */
2023 if (global.ssl_used_async_engines) {
2024 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
2025 global.maxsock += global.maxconn * sides * global.ssl_used_async_engines;
2026 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002027
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002028 if (global.stats_fe)
2029 global.maxsock += global.stats_fe->maxconn;
2030
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002031 if (cfg_peers) {
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002032 /* peers also need to bypass global maxconn */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002033 struct peers *p = cfg_peers;
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002034
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002035 for (p = cfg_peers; p; p = p->next)
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002036 if (p->peers_fe)
2037 global.maxsock += p->peers_fe->maxconn;
2038 }
2039
Willy Tarreau1db37712007-06-03 17:16:49 +02002040 if (global.tune.maxpollevents <= 0)
2041 global.tune.maxpollevents = MAX_POLL_EVENTS;
2042
Olivier Houchard1599b802018-05-24 18:59:04 +02002043 if (global.tune.runqueue_depth <= 0)
2044 global.tune.runqueue_depth = RUNQUEUE_DEPTH;
2045
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01002046 if (global.tune.recv_enough == 0)
2047 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
2048
Willy Tarreau27097842015-09-28 13:53:23 +02002049 if (global.tune.maxrewrite < 0)
2050 global.tune.maxrewrite = MAXREWRITE;
2051
Willy Tarreau27a674e2009-08-17 07:23:33 +02002052 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
2053 global.tune.maxrewrite = global.tune.bufsize / 2;
2054
Willy Tarreaubaaee002006-06-26 02:48:02 +02002055 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
2056 /* command line debug mode inhibits configuration mode */
William Lallemand095ba4c2017-06-01 17:38:50 +02002057 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002058 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
2059 }
2060
William Lallemand095ba4c2017-06-01 17:38:50 +02002061 if (arg_mode & MODE_DAEMON) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002062 /* command line daemon mode inhibits foreground and debug modes mode */
2063 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
William Lallemand095ba4c2017-06-01 17:38:50 +02002064 global.mode |= arg_mode & MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002065 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002066
2067 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02002068
William Lallemand095ba4c2017-06-01 17:38:50 +02002069 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002070 ha_warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
William Lallemand095ba4c2017-06-01 17:38:50 +02002071 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002072 }
2073
William Lallemand095ba4c2017-06-01 17:38:50 +02002074 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_MWORKER))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002075 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002076 ha_warning("<nbproc> is only meaningful in daemon mode or master-worker mode. Setting limit to 1 process.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +02002077 global.nbproc = 1;
2078 }
2079
2080 if (global.nbproc < 1)
2081 global.nbproc = 1;
2082
Christopher Fauletbe0faa22017-08-29 15:37:10 +02002083 if (global.nbthread < 1)
2084 global.nbthread = 1;
2085
Christopher Faulet3ef26392017-08-29 16:46:57 +02002086 /* Realloc trash buffers because global.tune.bufsize may have changed */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002087 if (!init_trash_buffers(0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002088 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet3ef26392017-08-29 16:46:57 +02002089 exit(1);
2090 }
2091
Christopher Faulet96d44832017-11-14 22:02:30 +01002092 if (!init_log_buffers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002093 ha_alert("failed to initialize log buffers.\n");
Christopher Faulet96d44832017-11-14 22:02:30 +01002094 exit(1);
2095 }
2096
Willy Tarreauef1d1f82007-04-16 00:25:25 +02002097 /*
2098 * Note: we could register external pollers here.
2099 * Built-in pollers have been registered before main().
2100 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02002101
Willy Tarreau43b78992009-01-25 15:42:27 +01002102 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02002103 disable_poller("kqueue");
2104
Willy Tarreau43b78992009-01-25 15:42:27 +01002105 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002106 disable_poller("epoll");
2107
Willy Tarreau43b78992009-01-25 15:42:27 +01002108 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002109 disable_poller("poll");
2110
Willy Tarreau43b78992009-01-25 15:42:27 +01002111 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002112 disable_poller("select");
2113
2114 /* Note: we could disable any poller by name here */
2115
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002116 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02002117 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002118 fprintf(stderr, "\n");
2119 list_filters(stderr);
2120 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002121
Willy Tarreau4f60f162007-04-08 16:39:58 +02002122 if (!init_pollers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002123 ha_alert("No polling mechanism available.\n"
2124 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
2125 " is too low on this platform to support maxconn and the number of listeners\n"
2126 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
2127 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
2128 " global maxconn setting to accommodate the system's limitation. For reference,\n"
2129 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
2130 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
2131 " check build settings using 'haproxy -vv'.\n\n",
2132 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002133 exit(1);
2134 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002135 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2136 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002137 }
2138
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002139 if (!global.node)
2140 global.node = strdup(hostname);
2141
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01002142 if (!hlua_post_init())
2143 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01002144
Maxime de Roucy0f503922016-05-13 23:52:55 +02002145 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002146}
2147
Simon Horman6fb82592011-07-15 13:14:11 +09002148static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09002149{
Simon Hormanac821422011-07-15 13:14:09 +09002150 struct acl_term_suite *suite, *suiteb;
2151 struct acl_term *term, *termb;
2152
Simon Horman6fb82592011-07-15 13:14:11 +09002153 if (!cond)
2154 return;
2155
2156 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
2157 list_for_each_entry_safe(term, termb, &suite->terms, list) {
2158 LIST_DEL(&term->list);
2159 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09002160 }
Simon Horman6fb82592011-07-15 13:14:11 +09002161 LIST_DEL(&suite->list);
2162 free(suite);
2163 }
2164
2165 free(cond);
2166}
2167
2168static void deinit_tcp_rules(struct list *rules)
2169{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02002170 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09002171
2172 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09002173 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09002174 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09002175 free(trule);
2176 }
2177}
2178
Simon Horman6fb82592011-07-15 13:14:11 +09002179static void deinit_stick_rules(struct list *rules)
2180{
2181 struct sticking_rule *rule, *ruleb;
2182
2183 list_for_each_entry_safe(rule, ruleb, rules, list) {
2184 LIST_DEL(&rule->list);
2185 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02002186 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09002187 free(rule);
2188 }
2189}
2190
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002191void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002192{
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002193 struct proxy *p = proxies_list, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002194 struct cap_hdr *h,*h_next;
2195 struct server *s,*s_next;
2196 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002197 struct acl_cond *cond, *condb;
2198 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002199 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002200 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002201 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002202 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002203 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01002204 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002205 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02002206 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01002207 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002208 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002209 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01002210 struct post_deinit_fct *pdf;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002211 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002212
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002213 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002214 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02002215 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002216 free(p->id);
2217 free(p->check_req);
2218 free(p->cookie_name);
2219 free(p->cookie_domain);
2220 free(p->url_param_name);
2221 free(p->capture_name);
2222 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09002223 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02002224 if (p->conf.logformat_string != default_http_log_format &&
2225 p->conf.logformat_string != default_tcp_log_format &&
2226 p->conf.logformat_string != clf_http_log_format)
2227 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02002228
Willy Tarreau62a61232013-04-12 18:13:46 +02002229 free(p->conf.lfs_file);
2230 free(p->conf.uniqueid_format_string);
2231 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08002232 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002233
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002234 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
2235 free(p->conf.logformat_sd_string);
2236 free(p->conf.lfsd_file);
2237
Willy Tarreaua534fea2008-08-03 12:19:50 +02002238 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02002239 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002240
Willy Tarreauf4f04122010-01-28 18:10:50 +01002241 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
2242 LIST_DEL(&cwl->list);
2243 free(cwl->s);
2244 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002245 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002246
Willy Tarreauf4f04122010-01-28 18:10:50 +01002247 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
2248 LIST_DEL(&cwl->list);
2249 free(cwl->s);
2250 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002251 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002252
Willy Tarreaub80c2302007-11-30 20:51:32 +01002253 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
2254 LIST_DEL(&cond->list);
2255 prune_acl_cond(cond);
2256 free(cond);
2257 }
2258
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002259 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002260 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002261 regex_free(exp->preg);
2262 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002263 }
2264
Willy Tarreau98d04852015-05-26 12:18:29 +02002265 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002266 expb = exp;
2267 exp = exp->next;
2268 free(expb);
2269 }
2270
2271 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002272 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002273 regex_free(exp->preg);
2274 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002275 }
2276
Willy Tarreau98d04852015-05-26 12:18:29 +02002277 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002278 expb = exp;
2279 exp = exp->next;
2280 free(expb);
2281 }
2282
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002283 /* build a list of unique uri_auths */
2284 if (!ua)
2285 ua = p->uri_auth;
2286 else {
2287 /* check if p->uri_auth is unique */
2288 for (uap = ua; uap; uap=uap->next)
2289 if (uap == p->uri_auth)
2290 break;
2291
Willy Tarreauaccc4e12008-06-24 11:14:45 +02002292 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002293 /* add it, if it is */
2294 p->uri_auth->next = ua;
2295 ua = p->uri_auth;
2296 }
2297 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002298
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002299 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
2300 LIST_DEL(&acl->list);
2301 prune_acl(acl);
2302 free(acl);
2303 }
2304
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002305 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
2306 LIST_DEL(&srule->list);
2307 prune_acl_cond(srule->cond);
2308 free(srule->cond);
2309 free(srule);
2310 }
2311
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002312 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
2313 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002314 if (rule->cond) {
2315 prune_acl_cond(rule->cond);
2316 free(rule->cond);
Thierry FOURNIER / OZON.IO4ed1c952016-11-24 23:57:54 +01002317 free(rule->file);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002318 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002319 free(rule);
2320 }
2321
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002322 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
2323 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01002324 if (rdr->cond) {
2325 prune_acl_cond(rdr->cond);
2326 free(rdr->cond);
2327 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002328 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01002329 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
2330 LIST_DEL(&lf->list);
2331 free(lf);
2332 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002333 free(rdr);
2334 }
2335
William Lallemand0f99e342011-10-12 17:50:54 +02002336 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
2337 LIST_DEL(&log->list);
2338 free(log);
2339 }
2340
William Lallemand723b73a2012-02-08 16:37:49 +01002341 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
2342 LIST_DEL(&lf->list);
2343 free(lf);
2344 }
2345
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002346 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
2347 LIST_DEL(&lf->list);
2348 free(lf);
2349 }
2350
Simon Hormanac821422011-07-15 13:14:09 +09002351 deinit_tcp_rules(&p->tcp_req.inspect_rules);
2352 deinit_tcp_rules(&p->tcp_req.l4_rules);
2353
Simon Horman6fb82592011-07-15 13:14:11 +09002354 deinit_stick_rules(&p->storersp_rules);
2355 deinit_stick_rules(&p->sticking_rules);
2356
Willy Tarreaubaaee002006-06-26 02:48:02 +02002357 h = p->req_cap;
2358 while (h) {
2359 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002360 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002361 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002362 free(h);
2363 h = h_next;
2364 }/* end while(h) */
2365
2366 h = p->rsp_cap;
2367 while (h) {
2368 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002369 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002370 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002371 free(h);
2372 h = h_next;
2373 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002374
Willy Tarreaubaaee002006-06-26 02:48:02 +02002375 s = p->srv;
2376 while (s) {
2377 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002378
Willy Tarreau5b3a2022012-09-28 15:01:02 +02002379 if (s->check.task) {
2380 task_delete(s->check.task);
2381 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002382 }
Simon Hormand60d6912013-11-25 10:46:36 +09002383 if (s->agent.task) {
2384 task_delete(s->agent.task);
2385 task_free(s->agent.task);
2386 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002387
Willy Tarreau2e993902011-10-31 11:53:20 +01002388 if (s->warmup) {
2389 task_delete(s->warmup);
2390 task_free(s->warmup);
2391 }
2392
Willy Tarreaua534fea2008-08-03 12:19:50 +02002393 free(s->id);
2394 free(s->cookie);
Willy Tarreauc9fa0482018-07-10 17:43:27 +02002395 free(s->check.bi.area);
2396 free(s->check.bo.area);
2397 free(s->agent.bi.area);
2398 free(s->agent.bo.area);
James Brown55f9ff12015-10-21 18:19:05 -07002399 free(s->agent.send_string);
Christopher Faulet67957bd2017-09-27 11:00:59 +02002400 free(s->hostname_dn);
Sárközi, László34c01792014-09-05 10:08:23 +02002401 free((char*)s->conf.file);
Willy Tarreau17d45382016-12-22 21:16:08 +01002402
2403 if (s->use_ssl || s->check.use_ssl) {
2404 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
2405 xprt_get(XPRT_SSL)->destroy_srv(s);
2406 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002407 HA_SPIN_DESTROY(&s->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002408 free(s);
2409 s = s_next;
2410 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002411
Willy Tarreau4348fad2012-09-20 16:48:07 +02002412 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002413 /*
2414 * Zombie proxy, the listener just pretend to be up
2415 * because they still hold an opened fd.
2416 * Close it and give the listener its real state.
2417 */
2418 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
2419 close(l->fd);
2420 l->state = LI_INIT;
2421 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02002422 unbind_listener(l);
2423 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002424 LIST_DEL(&l->by_fe);
2425 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002426 free(l->name);
2427 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002428 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002429 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002430
Willy Tarreau4348fad2012-09-20 16:48:07 +02002431 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002432 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01002433 if (bind_conf->xprt->destroy_bind_conf)
2434 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002435 free(bind_conf->file);
2436 free(bind_conf->arg);
2437 LIST_DEL(&bind_conf->by_fe);
2438 free(bind_conf);
2439 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02002440
Christopher Fauletd7c91962015-04-30 11:48:27 +02002441 flt_deinit(p);
2442
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002443 free(p->desc);
2444 free(p->fwdfor_hdr_name);
2445
Willy Tarreauff011f22011-01-06 17:51:27 +01002446 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06002447 free_http_res_rules(&p->http_res_rules);
Willy Tarreau1f89b182017-11-22 16:53:53 +01002448 task_free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01002449
Willy Tarreaubafbe012017-11-24 17:34:44 +01002450 pool_destroy(p->req_cap_pool);
2451 pool_destroy(p->rsp_cap_pool);
2452 pool_destroy(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002453
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002454 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002455 p = p->next;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002456 HA_SPIN_DESTROY(&p0->lbprm.lock);
2457 HA_SPIN_DESTROY(&p0->lock);
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002458 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002459 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02002460
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002461 while (ua) {
2462 uap = ua;
2463 ua = ua->next;
2464
Willy Tarreaua534fea2008-08-03 12:19:50 +02002465 free(uap->uri_prefix);
2466 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002467 free(uap->node);
2468 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002469
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002470 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01002471 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002472
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002473 free(uap);
2474 }
2475
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002476 userlist_free(userlist);
2477
David Carlier834cb2e2015-09-25 12:02:25 +01002478 cfg_unregister_sections();
2479
Christopher Faulet0132d062017-07-26 15:33:35 +02002480 deinit_log_buffers();
Christopher Faulet748919a2017-07-26 14:59:46 +02002481 deinit_trash_buffers();
David Carlier834cb2e2015-09-25 12:02:25 +01002482
Willy Tarreaudd815982007-10-16 12:25:14 +02002483 protocol_unbind_all();
2484
Willy Tarreau05554e62016-12-21 20:46:26 +01002485 list_for_each_entry(pdf, &post_deinit_list, list)
2486 pdf->fct();
2487
Joe Williamsdf5b38f2010-12-29 17:05:48 +01002488 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02002489 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002490 free(global.chroot); global.chroot = NULL;
2491 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002492 free(global.node); global.node = NULL;
2493 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002494 free(oldpids); oldpids = NULL;
Willy Tarreau1f89b182017-11-22 16:53:53 +01002495 task_free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002496
William Lallemand0f99e342011-10-12 17:50:54 +02002497 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
2498 LIST_DEL(&log->list);
2499 free(log);
2500 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01002501 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02002502 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01002503 LIST_DEL(&wl->list);
2504 free(wl);
2505 }
2506
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002507 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
2508 if (bol->must_free)
2509 free((void *)bol->str);
2510 LIST_DEL(&bol->list);
2511 free(bol);
2512 }
2513
Christopher Fauletff2613e2016-11-09 11:36:17 +01002514 vars_prune(&global.vars, NULL, NULL);
2515
Christopher Fauletad405f12017-08-29 15:30:11 +02002516 deinit_buffer();
2517
Willy Tarreaubafbe012017-11-24 17:34:44 +01002518 pool_destroy(pool_head_stream);
2519 pool_destroy(pool_head_session);
2520 pool_destroy(pool_head_connection);
2521 pool_destroy(pool_head_connstream);
2522 pool_destroy(pool_head_requri);
2523 pool_destroy(pool_head_task);
2524 pool_destroy(pool_head_capture);
2525 pool_destroy(pool_head_pendconn);
2526 pool_destroy(pool_head_sig_handlers);
2527 pool_destroy(pool_head_hdr_idx);
2528 pool_destroy(pool_head_http_txn);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002529 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002530} /* end deinit() */
2531
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002532void mworker_pipe_handler(int fd)
2533{
2534 char c;
2535
2536 while (read(fd, &c, 1) == -1) {
2537 if (errno == EINTR)
2538 continue;
2539 if (errno == EAGAIN) {
2540 fd_cant_recv(fd);
2541 return;
2542 }
2543 break;
2544 }
2545
Emeric Brunc8c0ed92018-10-11 15:27:07 +02002546 /* At this step the master is down before
2547 * this worker perform a 'normal' exit.
2548 * So we want to exit with an error but
2549 * other threads could currently process
2550 * some stuff so we can't perform a clean
2551 * deinit().
2552 */
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002553 exit(EXIT_FAILURE);
2554 return;
2555}
2556
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002557/* should only be called once per process */
2558void mworker_pipe_register()
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002559{
William Lallemandbc193052018-09-11 10:06:26 +02002560 if (fdtab[proc_self->ipc_fd[1]].owner)
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002561 /* already initialized */
2562 return;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002563
William Lallemandbc193052018-09-11 10:06:26 +02002564 fcntl(proc_self->ipc_fd[1], F_SETFL, O_NONBLOCK);
Emeric Brunc8c0ed92018-10-11 15:27:07 +02002565 /* In multi-tread, we need only one thread to process
2566 * events on the pipe with master
2567 */
2568 fd_insert(proc_self->ipc_fd[1], proc_self->ipc_fd, mworker_pipe_handler, 1);
William Lallemandbc193052018-09-11 10:06:26 +02002569 fd_want_recv(proc_self->ipc_fd[1]);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002570}
Christopher Fauletdc628a32017-10-19 11:59:44 +02002571
Willy Tarreau918ff602011-07-25 16:33:49 +02002572/* Runs the polling loop */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01002573static void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02002574{
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002575 int next, exp;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002576
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002577 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002578 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002579 /* Process a few tasks */
2580 process_runnable_tasks();
2581
William Lallemand1aab50b2018-06-07 09:46:01 +02002582 /* check if we caught some signals and process them in the
2583 first thread */
2584 if (tid == 0)
2585 signal_process_queue();
Willy Tarreau29857942009-05-10 09:01:21 +02002586
Willy Tarreau58b458d2008-06-29 22:40:23 +02002587 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002588 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002589
Willy Tarreau85c459d2018-08-02 10:54:31 +02002590 /* stop when there's nothing left to do */
2591 if (jobs == 0)
2592 break;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002593
Willy Tarreau10146c92015-04-13 20:44:19 +02002594 /* expire immediately if events are pending */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002595 exp = now_ms;
Christopher Faulet32467fe2018-01-15 12:16:34 +01002596 if (fd_cache_mask & tid_bit)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002597 activity[tid].wake_cache++;
2598 else if (active_tasks_mask & tid_bit)
2599 activity[tid].wake_tasks++;
William Lallemand1aab50b2018-06-07 09:46:01 +02002600 else if (signal_queue_len && tid == 0)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002601 activity[tid].wake_signal++;
Olivier Houchard79321b92018-07-26 17:55:11 +02002602 else {
2603 HA_ATOMIC_OR(&sleeping_thread_mask, tid_bit);
2604 __ha_barrier_store();
2605 if (active_tasks_mask & tid_bit) {
2606 activity[tid].wake_tasks++;
2607 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
2608 } else
2609 exp = next;
2610 }
Willy Tarreau10146c92015-04-13 20:44:19 +02002611
Willy Tarreau58b458d2008-06-29 22:40:23 +02002612 /* The poller will ensure it returns around <next> */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002613 cur_poller.poll(&cur_poller, exp);
Olivier Houchard79321b92018-07-26 17:55:11 +02002614 if (sleeping_thread_mask & tid_bit)
2615 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01002616 fd_process_cached_events();
Emeric Brun64cc49c2017-10-03 14:46:45 +02002617
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002618 activity[tid].loops++;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002619 }
2620}
2621
Christopher Faulet1d17c102017-08-29 15:38:48 +02002622static void *run_thread_poll_loop(void *data)
2623{
2624 struct per_thread_init_fct *ptif;
2625 struct per_thread_deinit_fct *ptdf;
Christopher Fauletda18b9d2018-01-25 16:10:16 +01002626 __decl_hathreads(static HA_SPINLOCK_T start_lock);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002627
Willy Tarreau0c026f42018-08-01 19:12:20 +02002628 ha_set_tid(*((unsigned int *)data));
Christopher Faulet1d17c102017-08-29 15:38:48 +02002629 tv_update_date(-1,-1);
2630
2631 list_for_each_entry(ptif, &per_thread_init_list, list) {
2632 if (!ptif->fct()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002633 ha_alert("failed to initialize thread %u.\n", tid);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002634 exit(1);
2635 }
2636 }
2637
William Lallemandbc193052018-09-11 10:06:26 +02002638 if ((global.mode & MODE_MWORKER) && master == 0) {
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002639 HA_SPIN_LOCK(START_LOCK, &start_lock);
2640 mworker_pipe_register();
2641 HA_SPIN_UNLOCK(START_LOCK, &start_lock);
2642 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002643
2644 protocol_enable_all();
Christopher Faulet1d17c102017-08-29 15:38:48 +02002645 run_poll_loop();
2646
2647 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
2648 ptdf->fct();
2649
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002650#ifdef USE_THREAD
William Lallemand091d8272018-06-24 09:37:03 +02002651 HA_ATOMIC_AND(&all_threads_mask, ~tid_bit);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002652 if (tid > 0)
2653 pthread_exit(NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002654#endif
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002655 return NULL;
2656}
Christopher Faulet1d17c102017-08-29 15:38:48 +02002657
Willy Tarreaue9b26022011-08-01 20:57:55 +02002658/* This is the global management task for listeners. It enables listeners waiting
2659 * for global resources when there are enough free resource, or at least once in
2660 * a while. It is designed to be called as a task.
2661 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02002662static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state)
Willy Tarreaue9b26022011-08-01 20:57:55 +02002663{
2664 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02002665 /* queue is empty, nothing to do */
2666 if (LIST_ISEMPTY(&global_listener_queue))
2667 goto out;
2668
2669 /* If there are still too many concurrent connections, let's wait for
2670 * some of them to go away. We don't need to re-arm the timer because
2671 * each of them will scan the queue anyway.
2672 */
2673 if (unlikely(actconn >= global.maxconn))
2674 goto out;
2675
2676 /* We should periodically try to enable listeners waiting for a global
2677 * resource here, because it is possible, though very unlikely, that
2678 * they have been blocked by a temporary lack of global resource such
2679 * as a file descriptor or memory and that the temporary condition has
2680 * disappeared.
2681 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002682 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02002683
2684 out:
2685 t->expire = next;
2686 task_queue(t);
2687 return t;
2688}
Willy Tarreau4f60f162007-04-08 16:39:58 +02002689
Willy Tarreaubaaee002006-06-26 02:48:02 +02002690int main(int argc, char **argv)
2691{
2692 int err, retry;
2693 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02002694 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02002695 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002696
Olivier Houchard5fa300d2018-02-03 15:15:21 +01002697 setvbuf(stdout, NULL, _IONBF, 0);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002698 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002699 signal_register_fct(SIGQUIT, dump, SIGQUIT);
2700 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
2701 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
William Lallemand73b85e72017-06-01 17:38:51 +02002702 signal_register_fct(SIGUSR2, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002703
Willy Tarreaue437c442010-03-17 18:02:46 +01002704 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
2705 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
2706 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002707 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002708 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002709
Willy Tarreaudc23a922011-02-16 11:10:36 +01002710 /* ulimits */
2711 if (!global.rlimit_nofile)
2712 global.rlimit_nofile = global.maxsock;
2713
2714 if (global.rlimit_nofile) {
2715 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
2716 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02002717 /* try to set it to the max possible at least */
2718 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02002719 limit.rlim_cur = limit.rlim_max;
2720 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
2721 getrlimit(RLIMIT_NOFILE, &limit);
2722
Christopher Faulet767a84b2017-11-24 16:50:31 +01002723 ha_warning("[%s.main()] Cannot raise FD limit to %d, limit is %d.\n", argv[0], global.rlimit_nofile, (int)limit.rlim_cur);
Willy Tarreauef635472016-06-21 11:48:18 +02002724 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002725 }
2726 }
2727
2728 if (global.rlimit_memmax) {
2729 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01002730 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002731#ifdef RLIMIT_AS
2732 if (setrlimit(RLIMIT_AS, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002733 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2734 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002735 }
2736#else
2737 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002738 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2739 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002740 }
2741#endif
2742 }
2743
Olivier Houchardf73629d2017-04-05 22:33:04 +02002744 if (old_unixsocket) {
William Lallemand85b0bd92017-06-01 17:38:53 +02002745 if (strcmp("/dev/null", old_unixsocket) != 0) {
2746 if (get_old_sockets(old_unixsocket) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002747 ha_alert("Failed to get the sockets from the old process!\n");
William Lallemand85b0bd92017-06-01 17:38:53 +02002748 if (!(global.mode & MODE_MWORKER))
2749 exit(1);
2750 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002751 }
2752 }
William Lallemand85b0bd92017-06-01 17:38:53 +02002753 get_cur_unixsocket();
2754
Willy Tarreaubaaee002006-06-26 02:48:02 +02002755 /* We will loop at most 100 times with 10 ms delay each time.
2756 * That's at most 1 second. We only send a signal to old pids
2757 * if we cannot grab at least one port.
2758 */
2759 retry = MAX_START_RETRIES;
2760 err = ERR_NONE;
2761 while (retry >= 0) {
2762 struct timeval w;
2763 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01002764 /* exit the loop on no error or fatal error */
2765 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002766 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02002767 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002768 break;
2769
2770 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
2771 * listening sockets. So on those platforms, it would be wiser to
2772 * simply send SIGUSR1, which will not be undoable.
2773 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02002774 if (tell_old_pids(SIGTTOU) == 0) {
2775 /* no need to wait if we can't contact old pids */
2776 retry = 0;
2777 continue;
2778 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002779 /* give some time to old processes to stop listening */
2780 w.tv_sec = 0;
2781 w.tv_usec = 10*1000;
2782 select(0, NULL, NULL, NULL, &w);
2783 retry--;
2784 }
2785
2786 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01002787 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02002788 if (retry != MAX_START_RETRIES && nb_oldpids) {
2789 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002790 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02002791 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002792 exit(1);
2793 }
2794
2795 if (listeners == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002796 ha_alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002797 /* Note: we don't have to send anything to the old pids because we
2798 * never stopped them. */
2799 exit(1);
2800 }
2801
Emeric Bruncf20bf12010-10-22 16:06:11 +02002802 err = protocol_bind_all(errmsg, sizeof(errmsg));
2803 if ((err & ~ERR_WARN) != ERR_NONE) {
2804 if ((err & ERR_ALERT) || (err & ERR_WARN))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002805 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002806
Christopher Faulet767a84b2017-11-24 16:50:31 +01002807 ha_alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002808 protocol_unbind_all(); /* cleanup everything we can */
2809 if (nb_oldpids)
2810 tell_old_pids(SIGTTIN);
2811 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002812 } else if (err & ERR_WARN) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002813 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02002814 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002815 /* Ok, all listener should now be bound, close any leftover sockets
2816 * the previous process gave us, we don't need them anymore
2817 */
2818 while (xfer_sock_list != NULL) {
2819 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
2820 close(xfer_sock_list->fd);
2821 free(xfer_sock_list->iface);
2822 free(xfer_sock_list->namespace);
2823 free(xfer_sock_list);
2824 xfer_sock_list = tmpxfer;
2825 }
Willy Tarreaudd815982007-10-16 12:25:14 +02002826
Willy Tarreaubaaee002006-06-26 02:48:02 +02002827 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002828 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
2829 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002830
Willy Tarreaubaaee002006-06-26 02:48:02 +02002831 /* MODE_QUIET can inhibit alerts and warnings below this line */
2832
PiBa-NL149a81a2017-12-25 21:03:31 +01002833 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL) {
2834 /* either stdin/out/err are already closed or should stay as they are. */
2835 if ((global.mode & MODE_DAEMON)) {
2836 /* daemon mode re-executing, stdin/stdout/stderr are already closed so keep quiet */
2837 global.mode &= ~MODE_VERBOSE;
2838 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2839 }
2840 } else {
2841 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
2842 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01002843 stdio_quiet(-1);
PiBa-NL149a81a2017-12-25 21:03:31 +01002844 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002845 }
2846
2847 /* open log & pid files before the chroot */
William Lallemand80293002017-11-06 11:00:03 +01002848 if ((global.mode & MODE_DAEMON || global.mode & MODE_MWORKER) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002849 unlink(global.pidfile);
2850 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
2851 if (pidfd < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002852 ha_alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002853 if (nb_oldpids)
2854 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02002855 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002856 exit(1);
2857 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002858 }
2859
Willy Tarreaub38651a2007-03-24 17:24:39 +01002860 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002861 ha_alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
2862 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002863 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01002864 exit(1);
2865 }
2866
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002867 /* If the user is not root, we'll still let him try the configuration
2868 * but we inform him that unexpected behaviour may occur.
2869 */
2870 if ((global.last_checks & LSTCHK_NETADM) && getuid())
Christopher Faulet767a84b2017-11-24 16:50:31 +01002871 ha_warning("[%s.main()] Some options which require full privileges"
2872 " might not work well.\n"
2873 "", argv[0]);
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002874
William Lallemand095ba4c2017-06-01 17:38:50 +02002875 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2876
2877 /* chroot if needed */
2878 if (global.chroot != NULL) {
2879 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002880 ha_alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02002881 if (nb_oldpids)
2882 tell_old_pids(SIGTTIN);
2883 protocol_unbind_all();
2884 exit(1);
2885 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002886 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002887 }
2888
Willy Tarreaubaaee002006-06-26 02:48:02 +02002889 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02002890 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002891
William Lallemand8a361b52017-06-20 11:20:33 +02002892 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
2893 nb_oldpids = 0;
2894 free(oldpids);
2895 oldpids = NULL;
2896 }
2897
2898
Willy Tarreaubaaee002006-06-26 02:48:02 +02002899 /* Note that any error at this stage will be fatal because we will not
2900 * be able to restart the old pids.
2901 */
2902
William Lallemand095ba4c2017-06-01 17:38:50 +02002903 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2904 /* setgid / setuid */
2905 if (global.gid) {
2906 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01002907 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2908 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002909
2910 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002911 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02002912 protocol_unbind_all();
2913 exit(1);
2914 }
2915 }
Michael Schererab012dd2013-01-12 18:35:19 +01002916
William Lallemand095ba4c2017-06-01 17:38:50 +02002917 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002918 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Michael Schererab012dd2013-01-12 18:35:19 +01002919 protocol_unbind_all();
2920 exit(1);
2921 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002922 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002923 /* check ulimits */
2924 limit.rlim_cur = limit.rlim_max = 0;
2925 getrlimit(RLIMIT_NOFILE, &limit);
2926 if (limit.rlim_cur < global.maxsock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002927 ha_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",
2928 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002929 }
2930
William Lallemand095ba4c2017-06-01 17:38:50 +02002931 if (global.mode & (MODE_DAEMON | MODE_MWORKER)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002932 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002933 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002934 int ret = 0;
2935 int proc;
William Lallemande1340412017-12-28 16:09:36 +01002936 int devnullfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002937
William Lallemand73b85e72017-06-01 17:38:51 +02002938 children = calloc(global.nbproc, sizeof(int));
William Lallemand095ba4c2017-06-01 17:38:50 +02002939 /*
2940 * if daemon + mworker: must fork here to let a master
2941 * process live in background before forking children
2942 */
William Lallemand73b85e72017-06-01 17:38:51 +02002943
2944 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)
2945 && (global.mode & MODE_MWORKER)
2946 && (global.mode & MODE_DAEMON)) {
William Lallemand095ba4c2017-06-01 17:38:50 +02002947 ret = fork();
2948 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002949 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002950 protocol_unbind_all();
2951 exit(1); /* there has been an error */
William Lallemandbfd8eb52018-07-04 15:31:23 +02002952 } else if (ret > 0) { /* parent leave to daemonize */
William Lallemand095ba4c2017-06-01 17:38:50 +02002953 exit(0);
William Lallemandbfd8eb52018-07-04 15:31:23 +02002954 } else /* change the process group ID in the child (master process) */
2955 setsid();
William Lallemand095ba4c2017-06-01 17:38:50 +02002956 }
William Lallemande20b6a62017-06-01 17:38:55 +02002957
William Lallemande20b6a62017-06-01 17:38:55 +02002958
William Lallemanddeed7802017-11-06 11:00:04 +01002959 /* if in master-worker mode, write the PID of the father */
2960 if (global.mode & MODE_MWORKER) {
2961 char pidstr[100];
2962 snprintf(pidstr, sizeof(pidstr), "%d\n", getpid());
Willy Tarreau46ec48b2018-01-23 19:20:19 +01002963 if (pidfd >= 0)
2964 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
William Lallemanddeed7802017-11-06 11:00:04 +01002965 }
2966
Willy Tarreaubaaee002006-06-26 02:48:02 +02002967 /* the father launches the required number of processes */
2968 for (proc = 0; proc < global.nbproc; proc++) {
2969 ret = fork();
2970 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002971 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002972 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02002973 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002974 }
2975 else if (ret == 0) /* child breaks here */
2976 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01002977 children[proc] = ret;
William Lallemand92159b22017-11-06 11:16:12 +01002978 if (pidfd >= 0 && !(global.mode & MODE_MWORKER)) {
Willy Tarreau269ab312012-09-05 08:02:48 +02002979 char pidstr[100];
2980 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002981 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02002982 }
William Lallemandbc193052018-09-11 10:06:26 +02002983 if (global.mode & MODE_MWORKER) {
William Lallemandce83b4a2018-10-26 14:47:30 +02002984 struct mworker_proc *child;
2985
2986 /* find the right mworker_proc */
2987 list_for_each_entry(child, &proc_list, list) {
2988 if (child->relative_pid == relative_pid &&
2989 child->reloads == 0) {
2990 child->pid = ret;
2991 break;
2992 }
2993 }
William Lallemandbc193052018-09-11 10:06:26 +02002994 }
2995
Willy Tarreaudcd47712007-11-04 23:35:08 +01002996 relative_pid++; /* each child will get a different one */
Willy Tarreau387bd4f2017-11-10 19:08:14 +01002997 pid_bit <<= 1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002998 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002999
3000#ifdef USE_CPU_AFFINITY
3001 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02003002 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003003 global.cpu_map.proc[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003004#ifdef __FreeBSD__
Olivier Houchard97148f62017-08-16 17:29:11 +02003005 {
3006 cpuset_t cpuset;
3007 int i;
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003008 unsigned long cpu_map = global.cpu_map.proc[proc];
Olivier Houchard97148f62017-08-16 17:29:11 +02003009
3010 CPU_ZERO(&cpuset);
3011 while ((i = ffsl(cpu_map)) > 0) {
3012 CPU_SET(i - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003013 cpu_map &= ~(1UL << (i - 1));
Olivier Houchard97148f62017-08-16 17:29:11 +02003014 }
3015 ret = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset), &cpuset);
3016 }
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003017#else
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003018 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map.proc[proc]);
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003019#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003020#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02003021 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02003022 if (pidfd >= 0) {
3023 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
3024 close(pidfd);
3025 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02003026
3027 /* We won't ever use this anymore */
Willy Tarreaud137dd32010-08-25 12:49:05 +02003028 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003029
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003030 if (proc == global.nbproc) {
William Lallemand095ba4c2017-06-01 17:38:50 +02003031 if (global.mode & MODE_MWORKER) {
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003032
3033 if ((!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
3034 (global.mode & MODE_DAEMON)) {
3035 /* detach from the tty, this is required to properly daemonize. */
William Lallemande1340412017-12-28 16:09:36 +01003036 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL))
3037 stdio_quiet(-1);
3038
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003039 global.mode &= ~MODE_VERBOSE;
3040 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003041 }
3042
William Lallemandb3f2be32018-09-11 10:06:18 +02003043 mworker_loop();
William Lallemand1499b9b2017-06-07 15:04:47 +02003044 /* should never get there */
3045 exit(EXIT_FAILURE);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003046 }
William Lallemandcf4e4962017-06-08 19:05:48 +02003047#if defined(USE_OPENSSL) && !defined(OPENSSL_NO_DH)
Grant Zhang872f9c22017-01-21 01:10:18 +00003048 ssl_free_dh();
3049#endif
William Lallemand1499b9b2017-06-07 15:04:47 +02003050 exit(0); /* parent must leave */
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003051 }
3052
William Lallemandcb11fd22017-06-01 17:38:52 +02003053 /* child must never use the atexit function */
3054 atexit_flag = 0;
3055
William Lallemandbc193052018-09-11 10:06:26 +02003056 /* close useless master sockets */
3057 if (global.mode & MODE_MWORKER) {
3058 struct mworker_proc *child, *it;
3059 master = 0;
3060
3061 /* free proc struct of other processes */
3062 list_for_each_entry_safe(child, it, &proc_list, list) {
William Lallemandce83b4a2018-10-26 14:47:30 +02003063 /* close the FD of the master side for all
3064 * workers, we don't need to close the worker
3065 * side of other workers since it's done with
3066 * the bind_proc */
3067 close(child->ipc_fd[0]);
3068 if (child->relative_pid == relative_pid &&
3069 child->reloads == 0) {
3070 /* keep this struct if this is our pid */
3071 proc_self = child;
William Lallemandbc193052018-09-11 10:06:26 +02003072 continue;
William Lallemandce83b4a2018-10-26 14:47:30 +02003073 }
William Lallemandbc193052018-09-11 10:06:26 +02003074 LIST_DEL(&child->list);
3075 free(child);
3076 }
3077 }
Willy Tarreau1605c7a2018-01-23 19:01:49 +01003078
William Lallemande1340412017-12-28 16:09:36 +01003079 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
3080 devnullfd = open("/dev/null", O_RDWR, 0);
3081 if (devnullfd < 0) {
3082 ha_alert("Cannot open /dev/null\n");
3083 exit(EXIT_FAILURE);
3084 }
3085 }
3086
William Lallemand095ba4c2017-06-01 17:38:50 +02003087 /* Must chroot and setgid/setuid in the children */
3088 /* chroot if needed */
3089 if (global.chroot != NULL) {
3090 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003091 ha_alert("[%s.main()] Cannot chroot1(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02003092 if (nb_oldpids)
3093 tell_old_pids(SIGTTIN);
3094 protocol_unbind_all();
3095 exit(1);
3096 }
3097 }
3098
3099 free(global.chroot);
3100 global.chroot = NULL;
3101
3102 /* setgid / setuid */
3103 if (global.gid) {
3104 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01003105 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
3106 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02003107
3108 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003109 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003110 protocol_unbind_all();
3111 exit(1);
3112 }
3113 }
3114
3115 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003116 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003117 protocol_unbind_all();
3118 exit(1);
3119 }
3120
William Lallemand7f80eb22017-05-26 18:19:55 +02003121 /* pass through every cli socket, and check if it's bound to
3122 * the current process and if it exposes listeners sockets.
3123 * Caution: the GTUNE_SOCKET_TRANSFER is now set after the fork.
3124 * */
3125
3126 if (global.stats_fe) {
3127 struct bind_conf *bind_conf;
3128
3129 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
3130 if (bind_conf->level & ACCESS_FD_LISTENERS) {
3131 if (!bind_conf->bind_proc || bind_conf->bind_proc & (1UL << proc)) {
3132 global.tune.options |= GTUNE_SOCKET_TRANSFER;
3133 break;
3134 }
3135 }
3136 }
3137 }
3138
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003139 /* we might have to unbind some proxies from some processes */
Olivier Houchardfbc74e82017-11-24 16:54:05 +01003140 px = proxies_list;
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003141 while (px != NULL) {
3142 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02003143 if (!(px->bind_proc & (1UL << proc))) {
3144 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
3145 zombify_proxy(px);
3146 else
3147 stop_proxy(px);
3148 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003149 }
3150 px = px->next;
3151 }
3152
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003153 /* we might have to unbind some peers sections from some processes */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02003154 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003155 if (!curpeers->peers_fe)
3156 continue;
3157
3158 if (curpeers->peers_fe->bind_proc & (1UL << proc))
3159 continue;
3160
3161 stop_proxy(curpeers->peers_fe);
3162 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02003163 signal_unregister_handler(curpeers->sighandler);
3164 task_delete(curpeers->sync_task);
3165 task_free(curpeers->sync_task);
3166 curpeers->sync_task = NULL;
3167 task_free(curpeers->peers_fe->task);
3168 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003169 curpeers->peers_fe = NULL;
3170 }
3171
Willy Tarreaubaaee002006-06-26 02:48:02 +02003172 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
3173 * that we can detach from the TTY. We MUST NOT do it in other cases since
3174 * it would have already be done, and 0-2 would have been affected to listening
3175 * sockets
3176 */
Willy Tarreau106cb762008-11-16 07:40:34 +01003177 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02003178 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01003179 stdio_quiet(devnullfd);
Willy Tarreau106cb762008-11-16 07:40:34 +01003180 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003181 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
3182 }
3183 pid = getpid(); /* update child's pid */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003184 if (!(global.mode & MODE_MWORKER)) /* in mworker mode we don't want a new pgid for the children */
3185 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02003186 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02003187 }
3188
Christopher Faulete3a5e352017-10-24 13:53:54 +02003189 global.mode &= ~MODE_STARTING;
Willy Tarreau4f60f162007-04-08 16:39:58 +02003190 /*
3191 * That's it : the central polling loop. Run until we stop.
3192 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02003193#ifdef USE_THREAD
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003194 {
Christopher Faulet1d17c102017-08-29 15:38:48 +02003195 unsigned int *tids = calloc(global.nbthread, sizeof(unsigned int));
3196 pthread_t *threads = calloc(global.nbthread, sizeof(pthread_t));
3197 int i;
William Lallemand1aab50b2018-06-07 09:46:01 +02003198 sigset_t blocked_sig, old_sig;
Christopher Faulet1d17c102017-08-29 15:38:48 +02003199
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003200 /* Init tids array */
3201 for (i = 0; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003202 tids[i] = i;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003203
William Lallemand1aab50b2018-06-07 09:46:01 +02003204 /* ensure the signals will be blocked in every thread */
3205 sigfillset(&blocked_sig);
3206 sigdelset(&blocked_sig, SIGPROF);
3207 sigdelset(&blocked_sig, SIGBUS);
3208 sigdelset(&blocked_sig, SIGFPE);
3209 sigdelset(&blocked_sig, SIGILL);
3210 sigdelset(&blocked_sig, SIGSEGV);
3211 pthread_sigmask(SIG_SETMASK, &blocked_sig, &old_sig);
3212
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003213 /* Create nbthread-1 thread. The first thread is the current process */
3214 threads[0] = pthread_self();
3215 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003216 pthread_create(&threads[i], NULL, &run_thread_poll_loop, &tids[i]);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003217
Christopher Faulet62519022017-10-16 15:49:32 +02003218#ifdef USE_CPU_AFFINITY
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003219 /* Now the CPU affinity for all threads */
3220 for (i = 0; i < global.nbthread; i++) {
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003221 if (global.cpu_map.proc[relative_pid-1])
3222 global.cpu_map.thread[relative_pid-1][i] &= global.cpu_map.proc[relative_pid-1];
Christopher Faulet62519022017-10-16 15:49:32 +02003223
Willy Tarreau421f02e2018-01-20 18:19:22 +01003224 if (i < MAX_THREADS && /* only the first 32/64 threads may be pinned */
Olivier Houchard829aa242017-12-01 18:19:43 +01003225 global.cpu_map.thread[relative_pid-1][i]) {/* only do this if the thread has a THREAD map */
3226#if defined(__FreeBSD__) || defined(__NetBSD__)
3227 cpuset_t cpuset;
3228#else
3229 cpu_set_t cpuset;
3230#endif
3231 int j;
3232 unsigned long cpu_map = global.cpu_map.thread[relative_pid-1][i];
3233
3234 CPU_ZERO(&cpuset);
3235
3236 while ((j = ffsl(cpu_map)) > 0) {
3237 CPU_SET(j - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003238 cpu_map &= ~(1UL << (j - 1));
Olivier Houchard829aa242017-12-01 18:19:43 +01003239 }
Christopher Faulet62519022017-10-16 15:49:32 +02003240 pthread_setaffinity_np(threads[i],
Olivier Houchard829aa242017-12-01 18:19:43 +01003241 sizeof(cpuset), &cpuset);
3242 }
Christopher Faulet1d17c102017-08-29 15:38:48 +02003243 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003244#endif /* !USE_CPU_AFFINITY */
3245
William Lallemand1aab50b2018-06-07 09:46:01 +02003246 /* when multithreading we need to let only the thread 0 handle the signals */
William Lallemandd3801c12018-09-11 10:06:23 +02003247 haproxy_unblock_signals();
William Lallemand1aab50b2018-06-07 09:46:01 +02003248
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003249 /* Finally, start the poll loop for the first thread */
3250 run_thread_poll_loop(&tids[0]);
3251
3252 /* Wait the end of other threads */
3253 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003254 pthread_join(threads[i], NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003255
Christopher Faulet1d17c102017-08-29 15:38:48 +02003256 free(tids);
3257 free(threads);
3258
Christopher Fauletb79a94c2017-05-30 15:34:30 +02003259#if defined(DEBUG_THREAD) || defined(DEBUG_FULL)
3260 show_lock_stats();
3261#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003262 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003263#else /* ! USE_THREAD */
William Lallemandd3801c12018-09-11 10:06:23 +02003264 haproxy_unblock_signals();
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003265 run_thread_poll_loop((int []){0});
Christopher Faulet62519022017-10-16 15:49:32 +02003266
Christopher Faulet62519022017-10-16 15:49:32 +02003267#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003268
3269 /* Do some cleanup */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003270 deinit();
Christopher Faulet1d17c102017-08-29 15:38:48 +02003271
Willy Tarreaubaaee002006-06-26 02:48:02 +02003272 exit(0);
3273}
3274
3275
3276/*
3277 * Local variables:
3278 * c-indent-level: 8
3279 * c-basic-offset: 8
3280 * End:
3281 */