blob: 517c62fe4b4a3047054cf1c222134534bffa40ab [file] [log] [blame]
Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau6c1b6672019-02-26 16:43:49 +01003 * Copyright 2000-2019 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>
David Carlier42d9e5a2018-11-12 16:22:19 +000055#if defined(__FreeBSD__) || defined(__DragonFly__)
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020056#include <sys/param.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000057#ifdef __FreeBSD__
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020058#include <sys/cpuset.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000059#endif
David Carlier6d5c8412017-11-29 11:02:32 +000060#include <pthread_np.h>
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020061#endif
Willy Tarreaufc6c0322012-11-16 16:12:27 +010062#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020063
64#ifdef DEBUG_FULL
65#include <assert.h>
66#endif
Tim Duesterhusd6942c82017-11-20 15:58:35 +010067#if defined(USE_SYSTEMD)
68#include <systemd/sd-daemon.h>
69#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020070
Willy Tarreau2dd0d472006-06-29 17:53:05 +020071#include <common/base64.h>
72#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020073#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020074#include <common/compat.h>
75#include <common/config.h>
76#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010077#include <common/errors.h>
Willy Tarreau5794fb02018-11-25 18:43:29 +010078#include <common/initcall.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020079#include <common/memory.h>
80#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010081#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020082#include <common/regex.h>
83#include <common/standard.h>
84#include <common/time.h>
85#include <common/uri_auth.h>
86#include <common/version.h>
Christopher Fauletbe0faa22017-08-29 15:37:10 +020087#include <common/hathreads.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020088
89#include <types/capture.h>
William Lallemandce83b4a2018-10-26 14:47:30 +020090#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020091#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020092#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090093#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020094#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020095
Willy Tarreau0fc45a72007-06-17 00:36:03 +020096#include <proto/acl.h>
Willy Tarreau609aad92018-11-22 08:31:09 +010097#include <proto/activity.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020098#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020099#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200100#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200101#include <proto/channel.h>
William Lallemandce83b4a2018-10-26 14:47:30 +0200102#include <proto/cli.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200103#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200104#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200105#include <proto/filters.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +0200106#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100107#include <proto/hlua.h>
Willy Tarreau61c112a2018-10-02 16:43:32 +0200108#include <proto/http_rules.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200109#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200110#include <proto/log.h>
William Lallemand48dfbbd2019-04-01 11:29:53 +0200111#include <proto/mworker.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100112#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200113#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +0100114#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200115#include <proto/proxy.h>
116#include <proto/queue.h>
117#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200118#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200119#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200120#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200121#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200122#include <proto/dns.h>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100123#include <proto/vars.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200124#ifdef USE_OPENSSL
Grant Zhang872f9c22017-01-21 01:10:18 +0000125#include <proto/ssl_sock.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200126#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200127
Willy Tarreau7b5654f2019-03-29 21:30:17 +0100128/* array of init calls for older platforms */
129DECLARE_INIT_STAGES;
130
Willy Tarreau477ecd82010-01-03 21:12:30 +0100131/* list of config files */
132static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200133int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100134int relative_pid = 1; /* process id starting at 1 */
Willy Tarreau387bd4f2017-11-10 19:08:14 +0100135unsigned long pid_bit = 1; /* bit corresponding to the process id */
Willy Tarreaua38a7172019-02-02 17:11:28 +0100136unsigned long all_proc_mask = 1; /* mask of all processes */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200137
Olivier Houchard79321b92018-07-26 17:55:11 +0200138volatile unsigned long sleeping_thread_mask; /* Threads that are about to sleep in poll() */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200139/* global options */
140struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100141 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100142 .nbproc = 1,
Willy Tarreau149ab772019-01-26 14:27:06 +0100143 .nbthread = 0,
William Lallemand5f232402012-04-05 18:02:55 +0200144 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200145 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100146 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100147 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100148 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200149 .unix_bind = {
150 .ux = {
151 .uid = -1,
152 .gid = -1,
153 .mode = 0,
154 }
155 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200156 .tune = {
Willy Tarreau7ac908b2019-02-27 12:02:18 +0100157 .options = GTUNE_LISTENER_MQ,
Willy Tarreauc77d3642018-12-12 06:19:42 +0100158 .bufsize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Willy Tarreau27097842015-09-28 13:53:23 +0200159 .maxrewrite = -1,
Willy Tarreauc77d3642018-12-12 06:19:42 +0100160 .chksize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Willy Tarreaua24adf02014-11-27 01:11:56 +0100161 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200162 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200163#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100164 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200165#endif
William Lallemandf3747832012-11-09 12:33:10 +0100166 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100167#ifdef DEFAULT_IDLE_TIMER
168 .idle_timer = DEFAULT_IDLE_TIMER,
169#else
170 .idle_timer = 1000, /* 1 second */
171#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200172 },
Emeric Brun76d88952012-10-05 15:47:31 +0200173#ifdef USE_OPENSSL
174#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200175 .maxsslconn = DEFAULT_MAXSSLCONN,
176#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200177#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200178 /* others NULL OK */
179};
180
181/*********************************************************************/
182
183int stopping; /* non zero means stopping in progress */
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100184int killed; /* non zero means a hard-stop is triggered */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200185int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
William Lallemanda7199262018-11-16 16:57:20 +0100186int unstoppable_jobs = 0; /* number of active jobs that can't be stopped during a soft stop */
Willy Tarreau199ad242018-11-05 16:31:22 +0100187int active_peers = 0; /* number of active peers (connection attempts and connected) */
Willy Tarreau2d372c22018-11-05 17:12:27 +0100188int connected_peers = 0; /* number of connected peers (verified ones) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200189
190/* Here we store informations about the pids of the processes we may pause
191 * or kill. We will send them a signal every 10 ms until we can bind to all
192 * our ports. With 200 retries, that's about 2 seconds.
193 */
194#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200195static int *oldpids = NULL;
196static int oldpids_sig; /* use USR1 or TERM */
197
Olivier Houchardf73629d2017-04-05 22:33:04 +0200198/* Path to the unix socket we use to retrieve listener sockets from the old process */
199static const char *old_unixsocket;
200
William Lallemand85b0bd92017-06-01 17:38:53 +0200201static char *cur_unixsocket = NULL;
202
William Lallemandcb11fd22017-06-01 17:38:52 +0200203int atexit_flag = 0;
204
Willy Tarreaubb545b42010-08-25 12:58:59 +0200205int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200206const int zero = 0;
207const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200208const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200209
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100210char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200211char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200212
Willy Tarreau89efaed2013-12-13 15:14:55 +0100213/* used from everywhere just to drain results we don't want to read and which
214 * recent versions of gcc increasingly and annoyingly complain about.
215 */
216int shut_your_big_mouth_gcc_int = 0;
217
William Lallemand73b85e72017-06-01 17:38:51 +0200218static char **next_argv = NULL;
219
William Lallemandbc193052018-09-11 10:06:26 +0200220struct list proc_list = LIST_HEAD_INIT(proc_list);
221
222int master = 0; /* 1 if in master, 0 if in child */
Willy Tarreaubf696402019-03-01 10:09:28 +0100223unsigned int rlim_fd_cur_at_boot = 0;
224unsigned int rlim_fd_max_at_boot = 0;
William Lallemandbc193052018-09-11 10:06:26 +0200225
William Lallemand16dd1b32018-11-19 18:46:18 +0100226struct mworker_proc *proc_self = NULL;
William Lallemandbc193052018-09-11 10:06:26 +0200227
Willy Tarreau08ceb102011-07-24 22:58:00 +0200228/* list of the temporarily limited listeners because of lack of resource */
229struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200230struct task *global_listener_queue_task;
Olivier Houchard9f6af332018-05-25 14:04:04 +0200231static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200232
William Lallemandb3f2be32018-09-11 10:06:18 +0200233static void *run_thread_poll_loop(void *data);
234
Willy Tarreauff055502014-04-28 22:27:06 +0200235/* bitfield of a few warnings to emit just once (WARN_*) */
236unsigned int warned = 0;
237
William Lallemande7361152018-10-26 14:47:36 +0200238/* master CLI configuration (-S flag) */
239struct list mworker_cli_conf = LIST_HEAD_INIT(mworker_cli_conf);
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100240
241/* These are strings to be reported in the output of "haproxy -vv". They may
242 * either be constants (in which case must_free must be zero) or dynamically
243 * allocated strings to pass to free() on exit, and in this case must_free
244 * must be non-zero.
245 */
246struct list build_opts_list = LIST_HEAD_INIT(build_opts_list);
247struct build_opts_str {
248 struct list list;
249 const char *str;
250 int must_free;
251};
252
Willy Tarreaue6945732016-12-21 19:57:00 +0100253/* These functions are called just after the point where the program exits
254 * after a config validity check, so they are generally suited for resource
255 * allocation and slow initializations that should be skipped during basic
256 * config checks. The functions must return 0 on success, or a combination
257 * of ERR_* flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause
258 * and immediate exit, so the function must have emitted any useful error.
259 */
260struct list post_check_list = LIST_HEAD_INIT(post_check_list);
261struct post_check_fct {
262 struct list list;
263 int (*fct)();
264};
265
Willy Tarreau05554e62016-12-21 20:46:26 +0100266/* These functions are called when freeing the global sections at the end
267 * of deinit, after everything is stopped. They don't return anything, and
268 * they work in best effort mode as their sole goal is to make valgrind
269 * mostly happy.
270 */
271struct list post_deinit_list = LIST_HEAD_INIT(post_deinit_list);
272struct post_deinit_fct {
273 struct list list;
274 void (*fct)();
275};
276
Christopher Faulet415f6112017-07-25 16:52:58 +0200277/* These functions are called for each thread just after the thread creation
278 * and before running the scheduler. They should be used to do per-thread
279 * initializations. They must return 0 if an error occurred. */
280struct list per_thread_init_list = LIST_HEAD_INIT(per_thread_init_list);
281struct per_thread_init_fct {
282 struct list list;
283 int (*fct)();
284};
285
286/* These functions are called for each thread just after the scheduler loop and
287 * before exiting the thread. They don't return anything and, as for post-deinit
288 * functions, they work in best effort mode as their sole goal is to make
289 * valgrind mostly happy. */
290struct list per_thread_deinit_list = LIST_HEAD_INIT(per_thread_deinit_list);
291struct per_thread_deinit_fct {
292 struct list list;
293 void (*fct)();
294};
295
Willy Tarreaubaaee002006-06-26 02:48:02 +0200296/*********************************************************************/
297/* general purpose functions ***************************************/
298/*********************************************************************/
299
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100300/* used to register some build option strings at boot. Set must_free to
301 * non-zero if the string must be freed upon exit.
302 */
303void hap_register_build_opts(const char *str, int must_free)
304{
305 struct build_opts_str *b;
306
307 b = calloc(1, sizeof(*b));
308 if (!b) {
309 fprintf(stderr, "out of memory\n");
310 exit(1);
311 }
312 b->str = str;
313 b->must_free = must_free;
314 LIST_ADDQ(&build_opts_list, &b->list);
315}
316
Willy Tarreaue6945732016-12-21 19:57:00 +0100317/* used to register some initialization functions to call after the checks. */
318void hap_register_post_check(int (*fct)())
319{
320 struct post_check_fct *b;
321
322 b = calloc(1, sizeof(*b));
323 if (!b) {
324 fprintf(stderr, "out of memory\n");
325 exit(1);
326 }
327 b->fct = fct;
328 LIST_ADDQ(&post_check_list, &b->list);
329}
330
Willy Tarreau05554e62016-12-21 20:46:26 +0100331/* used to register some de-initialization functions to call after everything
332 * has stopped.
333 */
334void hap_register_post_deinit(void (*fct)())
335{
336 struct post_deinit_fct *b;
337
338 b = calloc(1, sizeof(*b));
339 if (!b) {
340 fprintf(stderr, "out of memory\n");
341 exit(1);
342 }
343 b->fct = fct;
344 LIST_ADDQ(&post_deinit_list, &b->list);
345}
346
Christopher Faulet415f6112017-07-25 16:52:58 +0200347/* used to register some initialization functions to call for each thread. */
348void hap_register_per_thread_init(int (*fct)())
349{
350 struct per_thread_init_fct *b;
351
352 b = calloc(1, sizeof(*b));
353 if (!b) {
354 fprintf(stderr, "out of memory\n");
355 exit(1);
356 }
357 b->fct = fct;
358 LIST_ADDQ(&per_thread_init_list, &b->list);
359}
360
361/* used to register some de-initialization functions to call for each thread. */
362void hap_register_per_thread_deinit(void (*fct)())
363{
364 struct per_thread_deinit_fct *b;
365
366 b = calloc(1, sizeof(*b));
367 if (!b) {
368 fprintf(stderr, "out of memory\n");
369 exit(1);
370 }
371 b->fct = fct;
372 LIST_ADDQ(&per_thread_deinit_list, &b->list);
373}
374
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100375static void display_version()
Willy Tarreaubaaee002006-06-26 02:48:02 +0200376{
Willy Tarreau909b9d82019-01-04 18:20:32 +0100377 printf("HA-Proxy version %s %s - https://haproxy.org/\n", haproxy_version, haproxy_date);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200378}
379
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100380static void display_build_opts()
Willy Tarreau7b066db2007-12-02 11:28:59 +0100381{
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100382 struct build_opts_str *item;
383
Willy Tarreau7b066db2007-12-02 11:28:59 +0100384 printf("Build options :"
385#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100386 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100387#endif
388#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100389 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100390#endif
391#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100392 "\n CC = " BUILD_CC
393#endif
394#ifdef BUILD_CFLAGS
395 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100396#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100397#ifdef BUILD_OPTIONS
398 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100399#endif
Willy Tarreau7728ed32019-03-27 13:20:08 +0100400#ifdef BUILD_FEATURES
401 "\n\nFeature list : " BUILD_FEATURES
402#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200403 "\n\nDefault settings :"
Willy Tarreauca783d42019-03-13 10:03:07 +0100404 "\n bufsize = %d, maxrewrite = %d, maxpollevents = %d"
Willy Tarreau27a674e2009-08-17 07:23:33 +0200405 "\n\n",
Willy Tarreauca783d42019-03-13 10:03:07 +0100406 BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200407
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100408 list_for_each_entry(item, &build_opts_list, list) {
409 puts(item->str);
410 }
411
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100412 putchar('\n');
413
Willy Tarreaube5b6852009-10-03 18:57:08 +0200414 list_pollers(stdout);
415 putchar('\n');
Christopher Faulet98d9fe22018-04-10 14:37:32 +0200416 list_mux_proto(stdout);
417 putchar('\n');
Willy Tarreau679bba12019-03-19 08:08:10 +0100418 list_services(stdout);
419 putchar('\n');
Christopher Fauletb3f4e142016-03-07 12:46:38 +0100420 list_filters(stdout);
421 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100422}
423
Willy Tarreaubaaee002006-06-26 02:48:02 +0200424/*
425 * This function prints the command line usage and exits
426 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100427static void usage(char *name)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200428{
429 display_version();
430 fprintf(stderr,
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200431 "Usage : %s [-f <cfgfile|cfgdir>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200432 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200433 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100434 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200435 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200436 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200437 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200438 " -D goes daemon ; -C changes to <dir> before loading files.\n"
William Lallemand095ba4c2017-06-01 17:38:50 +0200439 " -W master-worker mode.\n"
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100440#if defined(USE_SYSTEMD)
441 " -Ws master-worker mode with systemd notify support.\n"
442#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200443 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200444 " -c check mode : only check config files and exit\n"
Willy Tarreauca783d42019-03-13 10:03:07 +0100445 " -n sets the maximum total # of connections (uses ulimit -n)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200446 " -m limits the usable amount of memory (in MB)\n"
447 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200448 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200449 " -p writes pids of all children to this file\n"
450#if defined(ENABLE_EPOLL)
451 " -de disables epoll() usage even when available\n"
452#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200453#if defined(ENABLE_KQUEUE)
454 " -dk disables kqueue() usage even when available\n"
455#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200456#if defined(ENABLE_POLL)
457 " -dp disables poll() usage even when available\n"
458#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200459#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100460 " -dS disables splice usage (broken on old kernels)\n"
461#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200462#if defined(USE_GETADDRINFO)
463 " -dG disables getaddrinfo() usage\n"
464#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000465#if defined(SO_REUSEPORT)
466 " -dR disables SO_REUSEPORT usage\n"
467#endif
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100468 " -dr ignores server address resolution failures\n"
Emeric Brun850efd52014-01-29 12:24:34 +0100469 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200470 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Olivier Houchardf73629d2017-04-05 22:33:04 +0200471 " -x <unix_socket> get listening sockets from a unix socket\n"
William Lallemande7361152018-10-26 14:47:36 +0200472 " -S <unix_socket>[,<bind options>...] new stats socket for the master\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200473 "\n",
Willy Tarreauca783d42019-03-13 10:03:07 +0100474 name, cfg_maxpconn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200475 exit(1);
476}
477
478
479
480/*********************************************************************/
481/* more specific functions ***************************************/
482/*********************************************************************/
483
William Lallemand73b85e72017-06-01 17:38:51 +0200484/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
485 * pids the signal was correctly delivered to.
486 */
William Lallemande25473c2019-04-01 11:29:56 +0200487int tell_old_pids(int sig)
William Lallemand73b85e72017-06-01 17:38:51 +0200488{
489 int p;
490 int ret = 0;
491 for (p = 0; p < nb_oldpids; p++)
492 if (kill(oldpids[p], sig) == 0)
493 ret++;
494 return ret;
495}
496
William Lallemand75ea0a02017-11-15 19:02:58 +0100497/*
William Lallemand73b85e72017-06-01 17:38:51 +0200498 * remove a pid forom the olpid array and decrease nb_oldpids
499 * return 1 pid was found otherwise return 0
500 */
501
502int delete_oldpid(int pid)
503{
504 int i;
505
506 for (i = 0; i < nb_oldpids; i++) {
507 if (oldpids[i] == pid) {
508 oldpids[i] = oldpids[nb_oldpids - 1];
509 oldpids[nb_oldpids - 1] = 0;
510 nb_oldpids--;
511 return 1;
512 }
513 }
514 return 0;
515}
516
William Lallemand85b0bd92017-06-01 17:38:53 +0200517
518static void get_cur_unixsocket()
519{
520 /* if -x was used, try to update the stat socket if not available anymore */
521 if (global.stats_fe) {
522 struct bind_conf *bind_conf;
523
524 /* pass through all stats socket */
525 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
526 struct listener *l;
527
528 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
529
530 if (l->addr.ss_family == AF_UNIX &&
531 (bind_conf->level & ACCESS_FD_LISTENERS)) {
532 const struct sockaddr_un *un;
533
534 un = (struct sockaddr_un *)&l->addr;
535 /* priority to old_unixsocket */
536 if (!cur_unixsocket) {
537 cur_unixsocket = strdup(un->sun_path);
538 } else {
539 if (old_unixsocket && !strcmp(un->sun_path, old_unixsocket)) {
540 free(cur_unixsocket);
541 cur_unixsocket = strdup(old_unixsocket);
542 return;
543 }
544 }
545 }
546 }
547 }
548 }
549 if (!cur_unixsocket && old_unixsocket)
550 cur_unixsocket = strdup(old_unixsocket);
551}
552
William Lallemand73b85e72017-06-01 17:38:51 +0200553/*
554 * When called, this function reexec haproxy with -sf followed by current
Joseph Herlant03420902018-11-15 10:41:50 -0800555 * children PIDs and possibly old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200556 */
William Lallemanda57b7e32018-12-14 21:11:31 +0100557void mworker_reload()
William Lallemand73b85e72017-06-01 17:38:51 +0200558{
559 int next_argc = 0;
William Lallemand73b85e72017-06-01 17:38:51 +0200560 char *msg = NULL;
Willy Tarreau8dca1952019-03-01 10:21:55 +0100561 struct rlimit limit;
William Lallemand7c756a82018-11-26 11:53:40 +0100562 struct per_thread_deinit_fct *ptdf;
William Lallemand73b85e72017-06-01 17:38:51 +0200563
564 mworker_block_signals();
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100565#if defined(USE_SYSTEMD)
566 if (global.tune.options & GTUNE_USE_SYSTEMD)
567 sd_notify(0, "RELOADING=1");
568#endif
William Lallemand73b85e72017-06-01 17:38:51 +0200569 setenv("HAPROXY_MWORKER_REEXEC", "1", 1);
570
William Lallemandbc193052018-09-11 10:06:26 +0200571 mworker_proc_list_to_env(); /* put the children description in the env */
572
William Lallemand7c756a82018-11-26 11:53:40 +0100573 /* during the reload we must ensure that every FDs that can't be
574 * reuse (ie those that are not referenced in the proc_list)
575 * are closed or they will leak. */
576
577 /* close the listeners FD */
578 mworker_cli_proxy_stop();
579 /* close the poller FD and the thread waker pipe FD */
580 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
581 ptdf->fct();
582 if (fdtab)
583 deinit_pollers();
584
Willy Tarreau8dca1952019-03-01 10:21:55 +0100585 /* restore the initial FD limits */
586 limit.rlim_cur = rlim_fd_cur_at_boot;
587 limit.rlim_max = rlim_fd_max_at_boot;
588 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
589 getrlimit(RLIMIT_NOFILE, &limit);
590 ha_warning("Failed to restore initial FD limits (cur=%u max=%u), using cur=%u max=%u\n",
591 rlim_fd_cur_at_boot, rlim_fd_max_at_boot,
592 (unsigned int)limit.rlim_cur, (unsigned int)limit.rlim_max);
593 }
594
William Lallemand73b85e72017-06-01 17:38:51 +0200595 /* compute length */
596 while (next_argv[next_argc])
597 next_argc++;
598
William Lallemand85b0bd92017-06-01 17:38:53 +0200599 /* 1 for haproxy -sf, 2 for -x /socket */
William Lallemand3f128872019-04-01 11:29:59 +0200600 next_argv = realloc(next_argv, (next_argc + 1 + 2 + mworker_child_nb() + nb_oldpids + 1) * sizeof(char *));
William Lallemand73b85e72017-06-01 17:38:51 +0200601 if (next_argv == NULL)
602 goto alloc_error;
603
William Lallemand73b85e72017-06-01 17:38:51 +0200604 /* add -sf <PID>* to argv */
William Lallemand3f128872019-04-01 11:29:59 +0200605 if (mworker_child_nb() > 0) {
606 struct mworker_proc *child;
607
William Lallemand73b85e72017-06-01 17:38:51 +0200608 next_argv[next_argc++] = "-sf";
William Lallemand3f128872019-04-01 11:29:59 +0200609
610 list_for_each_entry(child, &proc_list, list) {
611 if (child->type != 'w' && child->type != 'e')
612 continue;
613 next_argv[next_argc] = memprintf(&msg, "%d", child->pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200614 if (next_argv[next_argc] == NULL)
615 goto alloc_error;
616 msg = NULL;
William Lallemand3f128872019-04-01 11:29:59 +0200617 next_argc++;
William Lallemand73b85e72017-06-01 17:38:51 +0200618 }
619 }
William Lallemand3f128872019-04-01 11:29:59 +0200620
William Lallemand73b85e72017-06-01 17:38:51 +0200621 next_argv[next_argc] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200622
William Lallemand2bf6d622017-06-20 11:20:23 +0200623 /* add the -x option with the stat socket */
William Lallemand85b0bd92017-06-01 17:38:53 +0200624 if (cur_unixsocket) {
625
William Lallemand2bf6d622017-06-20 11:20:23 +0200626 next_argv[next_argc++] = "-x";
627 next_argv[next_argc++] = (char *)cur_unixsocket;
628 next_argv[next_argc++] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200629 }
630
Christopher Faulet767a84b2017-11-24 16:50:31 +0100631 ha_warning("Reexecuting Master process\n");
Tim Duesterhus0436ab72017-11-12 17:39:18 +0100632 execvp(next_argv[0], next_argv);
William Lallemand73b85e72017-06-01 17:38:51 +0200633
Christopher Faulet767a84b2017-11-24 16:50:31 +0100634 ha_warning("Failed to reexecute the master process [%d]: %s\n", pid, strerror(errno));
William Lallemand722d4ca2017-11-15 19:02:55 +0100635 return;
636
William Lallemand73b85e72017-06-01 17:38:51 +0200637alloc_error:
Joseph Herlant07a08342018-11-15 10:43:05 -0800638 ha_warning("Failed to reexecute the master process [%d]: Cannot allocate memory\n", pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200639 return;
640}
641
William Lallemandb3f2be32018-09-11 10:06:18 +0200642static void mworker_loop()
643{
644
645#if defined(USE_SYSTEMD)
646 if (global.tune.options & GTUNE_USE_SYSTEMD)
647 sd_notifyf(0, "READY=1\nMAINPID=%lu", (unsigned long)getpid());
648#endif
649
William Lallemandbc193052018-09-11 10:06:26 +0200650 master = 1;
651
William Lallemand0564d412018-11-20 17:36:53 +0100652 signal_unregister(SIGUSR1);
653 signal_unregister(SIGHUP);
654 signal_unregister(SIGQUIT);
655
William Lallemandb3f2be32018-09-11 10:06:18 +0200656 signal_register_fct(SIGTERM, mworker_catch_sigterm, SIGTERM);
657 signal_register_fct(SIGUSR1, mworker_catch_sigterm, SIGUSR1);
658 signal_register_fct(SIGINT, mworker_catch_sigterm, SIGINT);
659 signal_register_fct(SIGHUP, mworker_catch_sighup, SIGHUP);
660 signal_register_fct(SIGUSR2, mworker_catch_sighup, SIGUSR2);
661 signal_register_fct(SIGCHLD, mworker_catch_sigchld, SIGCHLD);
662
663 mworker_unblock_signals();
664 mworker_cleanlisteners();
William Lallemand27f3fa52018-12-06 14:05:20 +0100665 mworker_cleantasks();
William Lallemandb3f2be32018-09-11 10:06:18 +0200666
William Lallemandbc193052018-09-11 10:06:26 +0200667 mworker_catch_sigchld(NULL); /* ensure we clean the children in case
668 some SIGCHLD were lost */
669
William Lallemandb3f2be32018-09-11 10:06:18 +0200670 global.nbthread = 1;
671 relative_pid = 1;
672 pid_bit = 1;
Willy Tarreaua38a7172019-02-02 17:11:28 +0100673 all_proc_mask = 1;
William Lallemandb3f2be32018-09-11 10:06:18 +0200674
William Lallemand2672eb92018-12-14 15:52:39 +0100675#ifdef USE_THREAD
676 tid_bit = 1;
677 all_threads_mask = 1;
678#endif
679
William Lallemandb3f2be32018-09-11 10:06:18 +0200680 jobs++; /* this is the "master" job, we want to take care of the
681 signals even if there is no listener so the poll loop don't
682 leave */
683
684 fork_poller();
685 run_thread_poll_loop((int []){0});
686}
William Lallemandcb11fd22017-06-01 17:38:52 +0200687
688/*
689 * Reexec the process in failure mode, instead of exiting
690 */
691void reexec_on_failure()
692{
693 if (!atexit_flag)
694 return;
695
696 setenv("HAPROXY_MWORKER_WAIT_ONLY", "1", 1);
697
Christopher Faulet767a84b2017-11-24 16:50:31 +0100698 ha_warning("Reexecuting Master process in waitpid mode\n");
William Lallemandcb11fd22017-06-01 17:38:52 +0200699 mworker_reload();
William Lallemandcb11fd22017-06-01 17:38:52 +0200700}
William Lallemand73b85e72017-06-01 17:38:51 +0200701
702
703/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200704 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
705 * a signal zero to all subscribers. This means that it's as easy as
706 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200707 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100708static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200709{
710 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200711 signal_unregister_handler(sh);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100712 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200713}
714
715/*
716 * upon SIGTTOU, we pause everything
717 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100718static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200719{
720 pause_proxies();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100721 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200722}
723
724/*
725 * upon SIGTTIN, let's have a soft stop.
726 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100727static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200728{
Willy Tarreaube58c382011-07-24 18:28:10 +0200729 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200730}
731
732/*
733 * this function dumps every server's state when the process receives SIGHUP.
734 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100735static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200736{
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100737 struct proxy *p = proxies_list;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200738
Christopher Faulet767a84b2017-11-24 16:50:31 +0100739 ha_warning("SIGHUP received, dumping servers states.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200740 while (p) {
741 struct server *s = p->srv;
742
743 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
744 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100745 chunk_printf(&trash,
746 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
747 p->id, s->id,
Emeric Brun52a91d32017-08-31 14:41:55 +0200748 (s->cur_state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100749 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200750 ha_warning("%s\n", trash.area);
751 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200752 s = s->next;
753 }
754
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200755 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
756 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100757 chunk_printf(&trash,
758 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
759 p->id,
760 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 +0200761 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100762 chunk_printf(&trash,
763 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
764 p->id,
765 (p->srv_bck) ? "is running on backup servers" : "has no server available",
766 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 +0200767 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100768 chunk_printf(&trash,
769 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
770 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
771 p->id, p->srv_act, p->srv_bck,
772 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 +0200773 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200774 ha_warning("%s\n", trash.area);
775 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200776
777 p = p->next;
778 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200779}
780
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100781static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200782{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200783 /* dump memory usage then free everything possible */
784 dump_pools();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100785 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200786}
787
William Lallemande1340412017-12-28 16:09:36 +0100788/*
789 * This function dup2 the stdio FDs (0,1,2) with <fd>, then closes <fd>
790 * If <fd> < 0, it opens /dev/null and use it to dup
791 *
792 * In the case of chrooting, you have to open /dev/null before the chroot, and
793 * pass the <fd> to this function
794 */
795static void stdio_quiet(int fd)
796{
797 if (fd < 0)
798 fd = open("/dev/null", O_RDWR, 0);
799
800 if (fd > -1) {
801 fclose(stdin);
802 fclose(stdout);
803 fclose(stderr);
804
805 dup2(fd, 0);
806 dup2(fd, 1);
807 dup2(fd, 2);
808 if (fd > 2)
809 close(fd);
810 return;
811 }
812
813 ha_alert("Cannot open /dev/null\n");
814 exit(EXIT_FAILURE);
815}
816
817
Joseph Herlant03420902018-11-15 10:41:50 -0800818/* This function checks if cfg_cfgfiles contains directories.
819 * If it finds one, it adds all the files (and only files) it contains
820 * in cfg_cfgfiles in place of the directory (and removes the directory).
821 * It adds the files in lexical order.
822 * It adds only files with .cfg extension.
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200823 * It doesn't add files with name starting with '.'
824 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100825static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200826{
827 struct wordlist *wl, *wlb;
828 char *err = NULL;
829
830 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
831 struct stat file_stat;
832 struct dirent **dir_entries = NULL;
833 int dir_entries_nb;
834 int dir_entries_it;
835
836 if (stat(wl->s, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100837 ha_alert("Cannot open configuration file/directory %s : %s\n",
838 wl->s,
839 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200840 exit(1);
841 }
842
843 if (!S_ISDIR(file_stat.st_mode))
844 continue;
845
846 /* from this point wl->s is a directory */
847
848 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
849 if (dir_entries_nb < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100850 ha_alert("Cannot open configuration directory %s : %s\n",
851 wl->s,
852 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200853 exit(1);
854 }
855
856 /* for each element in the directory wl->s */
857 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
858 struct dirent *dir_entry = dir_entries[dir_entries_it];
859 char *filename = NULL;
860 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
861
862 /* don't add filename that begin with .
Joseph Herlant03420902018-11-15 10:41:50 -0800863 * only add filename with .cfg extension
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200864 */
865 if (dir_entry->d_name[0] == '.' ||
866 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
867 goto next_dir_entry;
868
869 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100870 ha_alert("Cannot load configuration files %s : out of memory.\n",
871 filename);
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200872 exit(1);
873 }
874
875 if (stat(filename, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100876 ha_alert("Cannot open configuration file %s : %s\n",
877 wl->s,
878 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200879 exit(1);
880 }
881
882 /* don't add anything else than regular file in cfg_cfgfiles
883 * this way we avoid loops
884 */
885 if (!S_ISREG(file_stat.st_mode))
886 goto next_dir_entry;
887
888 if (!list_append_word(&wl->list, filename, &err)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100889 ha_alert("Cannot load configuration files %s : %s\n",
890 filename,
891 err);
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200892 exit(1);
893 }
894
895next_dir_entry:
896 free(filename);
897 free(dir_entry);
898 }
899
900 free(dir_entries);
901
902 /* remove the current directory (wl) from cfg_cfgfiles */
903 free(wl->s);
904 LIST_DEL(&wl->list);
905 free(wl);
906 }
907
908 free(err);
909}
910
Olivier Houchardf73629d2017-04-05 22:33:04 +0200911static int get_old_sockets(const char *unixsocket)
912{
913 char *cmsgbuf = NULL, *tmpbuf = NULL;
914 int *tmpfd = NULL;
915 struct sockaddr_un addr;
916 struct cmsghdr *cmsg;
917 struct msghdr msghdr;
918 struct iovec iov;
919 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +0200920 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +0200921 int sock = -1;
922 int ret = -1;
923 int ret2 = -1;
924 int fd_nb;
925 int got_fd = 0;
926 int i = 0;
927 size_t maxoff = 0, curoff = 0;
928
929 memset(&msghdr, 0, sizeof(msghdr));
930 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
931 if (!cmsgbuf) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100932 ha_warning("Failed to allocate memory to send sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +0200933 goto out;
934 }
935 sock = socket(PF_UNIX, SOCK_STREAM, 0);
936 if (sock < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100937 ha_warning("Failed to connect to the old process socket '%s'\n",
938 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +0200939 goto out;
940 }
941 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path));
942 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
943 addr.sun_family = PF_UNIX;
944 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
945 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100946 ha_warning("Failed to connect to the old process socket '%s'\n",
947 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +0200948 goto out;
949 }
Olivier Houchard54740872017-04-06 14:45:14 +0200950 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +0200951 iov.iov_base = &fd_nb;
952 iov.iov_len = sizeof(fd_nb);
953 msghdr.msg_iov = &iov;
954 msghdr.msg_iovlen = 1;
955 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
956 /* First, get the number of file descriptors to be received */
957 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100958 ha_warning("Failed to get the number of sockets to be transferred !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +0200959 goto out;
960 }
961 if (fd_nb == 0) {
962 ret = 0;
963 goto out;
964 }
Olivier Houchardf143b802017-11-04 15:13:01 +0100965 tmpbuf = malloc(fd_nb * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int)));
Olivier Houchardf73629d2017-04-05 22:33:04 +0200966 if (tmpbuf == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100967 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +0200968 goto out;
969 }
970 tmpfd = malloc(fd_nb * sizeof(int));
971 if (tmpfd == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100972 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +0200973 goto out;
974 }
975 msghdr.msg_control = cmsgbuf;
976 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
Olivier Houchardf143b802017-11-04 15:13:01 +0100977 iov.iov_len = MAX_SEND_FD * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int));
Olivier Houchardf73629d2017-04-05 22:33:04 +0200978 do {
979 int ret3;
980
981 iov.iov_base = tmpbuf + curoff;
982 ret = recvmsg(sock, &msghdr, 0);
983 if (ret == -1 && errno == EINTR)
984 continue;
985 if (ret <= 0)
986 break;
987 /* Send an ack to let the sender know we got the sockets
988 * and it can send some more
989 */
990 do {
991 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
992 } while (ret3 == -1 && errno == EINTR);
993 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
994 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
995 if (cmsg->cmsg_level == SOL_SOCKET &&
996 cmsg->cmsg_type == SCM_RIGHTS) {
997 size_t totlen = cmsg->cmsg_len -
998 CMSG_LEN(0);
999 if (totlen / sizeof(int) + got_fd > fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001000 ha_warning("Got to many sockets !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001001 goto out;
1002 }
1003 /*
1004 * Be paranoid and use memcpy() to avoid any
1005 * potential alignement issue.
1006 */
1007 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
1008 got_fd += totlen / sizeof(int);
1009 }
1010 }
1011 curoff += ret;
1012 } while (got_fd < fd_nb);
1013
1014 if (got_fd != fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001015 ha_warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
1016 fd_nb, got_fd);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001017 goto out;
1018 }
1019 maxoff = curoff;
1020 curoff = 0;
1021 for (i = 0; i < got_fd; i++) {
1022 int fd = tmpfd[i];
1023 socklen_t socklen;
1024 int len;
1025
1026 xfer_sock = calloc(1, sizeof(*xfer_sock));
1027 if (!xfer_sock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001028 ha_warning("Failed to allocate memory in get_old_sockets() !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001029 break;
1030 }
1031 xfer_sock->fd = -1;
1032
1033 socklen = sizeof(xfer_sock->addr);
1034 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001035 ha_warning("Failed to get socket address\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001036 free(xfer_sock);
Olivier Houchardbe7b1ce2017-07-17 17:25:33 +02001037 xfer_sock = NULL;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001038 continue;
1039 }
1040 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001041 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001042 goto out;
1043 }
1044 len = tmpbuf[curoff++];
1045 if (len > 0) {
1046 /* We have a namespace */
1047 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001048 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001049 goto out;
1050 }
1051 xfer_sock->namespace = malloc(len + 1);
1052 if (!xfer_sock->namespace) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001053 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001054 goto out;
1055 }
1056 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
1057 xfer_sock->namespace[len] = 0;
1058 curoff += len;
1059 }
1060 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001061 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001062 goto out;
1063 }
1064 len = tmpbuf[curoff++];
1065 if (len > 0) {
1066 /* We have an interface */
1067 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001068 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001069 goto out;
1070 }
1071 xfer_sock->iface = malloc(len + 1);
1072 if (!xfer_sock->iface) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001073 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001074 goto out;
1075 }
1076 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
Olivier Houchard33e083c2018-03-15 17:48:49 +01001077 xfer_sock->iface[len] = 0;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001078 curoff += len;
1079 }
1080 if (curoff + sizeof(int) > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001081 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001082 goto out;
1083 }
1084 memcpy(&xfer_sock->options, &tmpbuf[curoff],
1085 sizeof(xfer_sock->options));
1086 curoff += sizeof(xfer_sock->options);
1087
1088 xfer_sock->fd = fd;
1089 if (xfer_sock_list)
1090 xfer_sock_list->prev = xfer_sock;
1091 xfer_sock->next = xfer_sock_list;
1092 xfer_sock->prev = NULL;
1093 xfer_sock_list = xfer_sock;
1094 xfer_sock = NULL;
1095 }
1096
1097 ret2 = 0;
1098out:
1099 /* If we failed midway make sure to close the remaining
1100 * file descriptors
1101 */
1102 if (tmpfd != NULL && i < got_fd) {
1103 for (; i < got_fd; i++) {
1104 close(tmpfd[i]);
1105 }
1106 }
1107 free(tmpbuf);
1108 free(tmpfd);
1109 free(cmsgbuf);
1110 if (sock != -1)
1111 close(sock);
1112 if (xfer_sock) {
1113 free(xfer_sock->namespace);
1114 free(xfer_sock->iface);
1115 if (xfer_sock->fd != -1)
1116 close(xfer_sock->fd);
1117 free(xfer_sock);
1118 }
1119 return (ret2);
1120}
1121
Willy Tarreaubaaee002006-06-26 02:48:02 +02001122/*
William Lallemand73b85e72017-06-01 17:38:51 +02001123 * copy and cleanup the current argv
1124 * Remove the -sf /-st parameters
1125 * Return an allocated copy of argv
1126 */
1127
1128static char **copy_argv(int argc, char **argv)
1129{
1130 char **newargv;
William Lallemand2bf6d622017-06-20 11:20:23 +02001131 int i = 0, j = 0;
William Lallemand73b85e72017-06-01 17:38:51 +02001132
1133 newargv = calloc(argc + 2, sizeof(char *));
1134 if (newargv == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001135 ha_warning("Cannot allocate memory\n");
William Lallemand73b85e72017-06-01 17:38:51 +02001136 return NULL;
1137 }
1138
William Lallemand2bf6d622017-06-20 11:20:23 +02001139 while (i < argc) {
1140 /* -sf or -st or -x */
William Lallemand29f690c2018-01-09 23:12:27 +01001141 if (i > 0 && argv[i][0] == '-' &&
1142 ((argv[i][1] == 's' && (argv[i][2] == 'f' || argv[i][2] == 't')) || argv[i][1] == 'x' )) {
William Lallemand2bf6d622017-06-20 11:20:23 +02001143 /* list of pids to finish ('f') or terminate ('t') or unix socket (-x) */
William Lallemand73b85e72017-06-01 17:38:51 +02001144 i++;
1145 while (i < argc && argv[i][0] != '-') {
1146 i++;
1147 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001148 continue;
William Lallemand73b85e72017-06-01 17:38:51 +02001149 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001150
1151 newargv[j++] = argv[i++];
William Lallemand73b85e72017-06-01 17:38:51 +02001152 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001153
William Lallemand73b85e72017-06-01 17:38:51 +02001154 return newargv;
1155}
1156
Willy Tarreau5a023f02019-03-01 14:19:31 +01001157/* considers splicing proxies' maxconn, computes the ideal global.maxpipes
1158 * setting, and returns it. It may return -1 meaning "unlimited" if some
1159 * unlimited proxies have been found and the global.maxconn value is not yet
1160 * set. It may also return a value greater than maxconn if it's not yet set.
1161 * Note that a value of zero means there is no need for pipes. -1 is never
1162 * returned if global.maxconn is valid.
1163 */
1164static int compute_ideal_maxpipes()
1165{
1166 struct proxy *cur;
1167 int nbfe = 0, nbbe = 0;
1168 int unlimited = 0;
1169 int pipes;
1170 int max;
1171
1172 for (cur = proxies_list; cur; cur = cur->next) {
1173 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
1174 if (cur->cap & PR_CAP_FE) {
1175 max = cur->maxconn;
1176 nbfe += max;
1177 if (!max) {
1178 unlimited = 1;
1179 break;
1180 }
1181 }
1182 if (cur->cap & PR_CAP_BE) {
1183 max = cur->fullconn ? cur->fullconn : global.maxconn;
1184 nbbe += max;
1185 if (!max) {
1186 unlimited = 1;
1187 break;
1188 }
1189 }
1190 }
1191 }
1192
1193 pipes = MAX(nbfe, nbbe);
1194 if (global.maxconn) {
1195 if (pipes > global.maxconn || unlimited)
1196 pipes = global.maxconn;
1197 } else if (unlimited) {
1198 pipes = -1;
1199 }
1200
1201 return pipes >= 4 ? pipes / 4 : pipes;
1202}
1203
Willy Tarreauac350932019-03-01 15:43:14 +01001204/* considers global.maxsocks, global.maxpipes, async engines, SSL frontends and
1205 * rlimits and computes an ideal maxconn. It's meant to be called only when
1206 * maxsock contains the sum of listening FDs, before it is updated based on
Willy Tarreaudf23c0c2019-03-13 10:10:49 +01001207 * maxconn and pipes. If there are not enough FDs left, DEFAULT_MAXCONN (by
1208 * default 100) is returned as it is expected that it will even run on tight
1209 * environments, and will maintain compatibility with previous packages that
1210 * used to rely on this value as the default one. The system will emit a
1211 * warning indicating how many FDs are missing anyway if needed.
Willy Tarreauac350932019-03-01 15:43:14 +01001212 */
1213static int compute_ideal_maxconn()
1214{
1215 int ssl_sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1216 int engine_fds = global.ssl_used_async_engines * ssl_sides;
1217 int pipes = compute_ideal_maxpipes();
1218 int remain = rlim_fd_cur_at_boot;
1219 int maxconn;
1220
1221 /* we have to take into account these elements :
1222 * - number of engine_fds, which inflates the number of FD needed per
1223 * connection by this number.
1224 * - number of pipes per connection on average : for the unlimited
1225 * case, this is 0.5 pipe FDs per connection, otherwise it's a
1226 * fixed value of 2*pipes.
1227 * - two FDs per connection
1228 */
1229
1230 /* subtract listeners and checks */
1231 remain -= global.maxsock;
1232
Willy Tarreau3f200852019-03-14 19:13:17 +01001233 /* one epoll_fd/kqueue_fd per thread */
1234 remain -= global.nbthread;
1235
1236 /* one wake-up pipe (2 fd) per thread */
1237 remain -= 2 * global.nbthread;
1238
Willy Tarreauac350932019-03-01 15:43:14 +01001239 /* Fixed pipes values : we only subtract them if they're not larger
1240 * than the remaining FDs because pipes are optional.
1241 */
1242 if (pipes >= 0 && pipes * 2 < remain)
1243 remain -= pipes * 2;
1244
1245 if (pipes < 0) {
1246 /* maxsock = maxconn * 2 + maxconn/4 * 2 + maxconn * engine_fds.
1247 * = maxconn * (2 + 0.5 + engine_fds)
1248 * = maxconn * (4 + 1 + 2*engine_fds) / 2
1249 */
1250 maxconn = 2 * remain / (5 + 2 * engine_fds);
1251 } else {
1252 /* maxsock = maxconn * 2 + maxconn * engine_fds.
1253 * = maxconn * (2 + engine_fds)
1254 */
1255 maxconn = remain / (2 + engine_fds);
1256 }
1257
Willy Tarreaudf23c0c2019-03-13 10:10:49 +01001258 return MAX(maxconn, DEFAULT_MAXCONN);
Willy Tarreauac350932019-03-01 15:43:14 +01001259}
1260
William Lallemand73b85e72017-06-01 17:38:51 +02001261/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001262 * This function initializes all the necessary variables. It only returns
1263 * if everything is OK. If something fails, it exits.
1264 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001265static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001266{
Willy Tarreaubaaee002006-06-26 02:48:02 +02001267 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001268 char *tmp;
1269 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +02001270 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +02001271 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +01001272 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +00001273 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +02001274 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +02001275 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +01001276 struct post_check_fct *pcf;
Willy Tarreauac350932019-03-01 15:43:14 +01001277 int ideal_maxconn;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001278
Christopher Faulete3a5e352017-10-24 13:53:54 +02001279 global.mode = MODE_STARTING;
William Lallemand73b85e72017-06-01 17:38:51 +02001280 next_argv = copy_argv(argc, argv);
1281
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001282 if (!init_trash_buffers(1)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001283 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet748919a2017-07-26 14:59:46 +02001284 exit(1);
1285 }
David du Colombier7af46052012-05-16 14:16:48 +02001286
Emeric Brun2b920a12010-09-23 18:30:22 +02001287 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
1288 * the string in case of truncation, and at least FreeBSD appears not to do
1289 * it.
1290 */
1291 memset(hostname, 0, sizeof(hostname));
1292 gethostname(hostname, sizeof(hostname) - 1);
1293 memset(localpeer, 0, sizeof(localpeer));
1294 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
William Lallemanddaf4cd22018-04-17 16:46:13 +02001295 setenv("HAPROXY_LOCALPEER", localpeer, 1);
Emeric Brun2b920a12010-09-23 18:30:22 +02001296
Willy Tarreaubaaee002006-06-26 02:48:02 +02001297 /*
1298 * Initialize the previously static variables.
1299 */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001300
Willy Tarreau173d9952018-01-26 21:48:23 +01001301 totalconn = actconn = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001302 killed = 0;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001303
Willy Tarreaubaaee002006-06-26 02:48:02 +02001304
1305#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +01001306 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001307#endif
1308
Benoit GARNIERb413c2a2016-03-27 11:08:03 +02001309 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001310 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001311 start_date = now;
1312
Willy Tarreau84310e22014-02-14 11:59:04 +01001313 srandom(now_ms - getpid());
1314
Willy Tarreau8ed669b2013-01-11 15:49:37 +01001315 if (init_acl() != 0)
1316 exit(1);
Willy Tarreaub6b3df32018-11-26 16:31:20 +01001317
Willy Tarreau8280d642009-09-23 23:37:52 +02001318 /* warning, we init buffers later */
Willy Tarreau04f1e2d2018-09-10 18:04:24 +02001319 if (!init_http(&err_msg)) {
1320 ha_alert("%s. Aborting.\n", err_msg);
1321 free(err_msg);
1322 abort();
1323 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001324
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001325 /* Initialise lua. */
1326 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001327
Christopher Fauletff2613e2016-11-09 11:36:17 +01001328 /* Initialize process vars */
1329 vars_init(&global.vars, SCOPE_PROC);
1330
Willy Tarreau43b78992009-01-25 15:42:27 +01001331 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001332#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001333 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001334#endif
1335#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001336 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001337#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001338#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +01001339 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001340#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001341#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001342 global.tune.options |= GTUNE_USE_SPLICE;
1343#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001344#if defined(USE_GETADDRINFO)
1345 global.tune.options |= GTUNE_USE_GAI;
1346#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001347#if defined(SO_REUSEPORT)
1348 global.tune.options |= GTUNE_USE_REUSEPORT;
1349#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001350
1351 pid = getpid();
1352 progname = *argv;
1353 while ((tmp = strchr(progname, '/')) != NULL)
1354 progname = tmp + 1;
1355
Kevinm48936af2010-12-22 16:08:21 +00001356 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +02001357 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +00001358
Willy Tarreaubaaee002006-06-26 02:48:02 +02001359 argc--; argv++;
1360 while (argc > 0) {
1361 char *flag;
1362
1363 if (**argv == '-') {
1364 flag = *argv+1;
1365
1366 /* 1 arg */
1367 if (*flag == 'v') {
1368 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +01001369 if (flag[1] == 'v') /* -vv */
1370 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001371 exit(0);
1372 }
1373#if defined(ENABLE_EPOLL)
1374 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +01001375 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001376#endif
1377#if defined(ENABLE_POLL)
1378 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +01001379 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001380#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +02001381#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001382 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +01001383 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001384#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001385#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001386 else if (*flag == 'd' && flag[1] == 'S')
1387 global.tune.options &= ~GTUNE_USE_SPLICE;
1388#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001389#if defined(USE_GETADDRINFO)
1390 else if (*flag == 'd' && flag[1] == 'G')
1391 global.tune.options &= ~GTUNE_USE_GAI;
1392#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001393#if defined(SO_REUSEPORT)
1394 else if (*flag == 'd' && flag[1] == 'R')
1395 global.tune.options &= ~GTUNE_USE_REUSEPORT;
1396#endif
Emeric Brun850efd52014-01-29 12:24:34 +01001397 else if (*flag == 'd' && flag[1] == 'V')
1398 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001399 else if (*flag == 'V')
1400 arg_mode |= MODE_VERBOSE;
1401 else if (*flag == 'd' && flag[1] == 'b')
1402 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +02001403 else if (*flag == 'd' && flag[1] == 'M')
1404 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +01001405 else if (*flag == 'd' && flag[1] == 'r')
1406 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001407 else if (*flag == 'd')
1408 arg_mode |= MODE_DEBUG;
1409 else if (*flag == 'c')
1410 arg_mode |= MODE_CHECK;
William Lallemand095ba4c2017-06-01 17:38:50 +02001411 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +02001412 arg_mode |= MODE_DAEMON;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001413 else if (*flag == 'W' && flag[1] == 's') {
Lukas Tribusf46bf952017-11-21 12:39:34 +01001414 arg_mode |= MODE_MWORKER | MODE_FOREGROUND;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001415#if defined(USE_SYSTEMD)
1416 global.tune.options |= GTUNE_USE_SYSTEMD;
1417#else
Christopher Faulet767a84b2017-11-24 16:50:31 +01001418 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 +01001419 usage(progname);
1420#endif
1421 }
William Lallemand095ba4c2017-06-01 17:38:50 +02001422 else if (*flag == 'W')
1423 arg_mode |= MODE_MWORKER;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001424 else if (*flag == 'q')
1425 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001426 else if (*flag == 'x') {
William Lallemand45eff442017-06-19 15:57:55 +02001427 if (argc <= 1 || argv[1][0] == '-') {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001428 ha_alert("Unix socket path expected with the -x flag\n\n");
William Lallemand45eff442017-06-19 15:57:55 +02001429 usage(progname);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001430 }
William Lallemand4fc09692017-06-19 16:37:19 +02001431 if (old_unixsocket)
Christopher Faulet767a84b2017-11-24 16:50:31 +01001432 ha_warning("-x option already set, overwriting the value\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001433 old_unixsocket = argv[1];
William Lallemand4fc09692017-06-19 16:37:19 +02001434
Olivier Houchardf73629d2017-04-05 22:33:04 +02001435 argv++;
1436 argc--;
1437 }
William Lallemande7361152018-10-26 14:47:36 +02001438 else if (*flag == 'S') {
1439 struct wordlist *c;
1440
1441 if (argc <= 1 || argv[1][0] == '-') {
1442 ha_alert("Socket and optional bind parameters expected with the -S flag\n");
1443 usage(progname);
1444 }
1445 if ((c = malloc(sizeof(*c))) == NULL || (c->s = strdup(argv[1])) == NULL) {
1446 ha_alert("Cannot allocate memory\n");
1447 exit(EXIT_FAILURE);
1448 }
1449 LIST_ADD(&mworker_cli_conf, &c->list);
1450
1451 argv++;
1452 argc--;
1453 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001454 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
1455 /* list of pids to finish ('f') or terminate ('t') */
1456
1457 if (flag[1] == 'f')
1458 oldpids_sig = SIGUSR1; /* finish then exit */
1459 else
1460 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001461 while (argc > 1 && argv[1][0] != '-') {
Chris Lane236062f2018-02-05 23:15:44 +00001462 char * endptr = NULL;
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001463 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
1464 if (!oldpids) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001465 ha_alert("Cannot allocate old pid : out of memory.\n");
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001466 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001467 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001468 argc--; argv++;
Chris Lane236062f2018-02-05 23:15:44 +00001469 errno = 0;
1470 oldpids[nb_oldpids] = strtol(*argv, &endptr, 10);
1471 if (errno) {
1472 ha_alert("-%2s option: failed to parse {%s}: %s\n",
1473 flag,
1474 *argv, strerror(errno));
1475 exit(1);
1476 } else if (endptr && strlen(endptr)) {
1477 while (isspace(*endptr)) endptr++;
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001478 if (*endptr != 0) {
Chris Lane236062f2018-02-05 23:15:44 +00001479 ha_alert("-%2s option: some bytes unconsumed in PID list {%s}\n",
1480 flag, endptr);
1481 exit(1);
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001482 }
Chris Lane236062f2018-02-05 23:15:44 +00001483 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001484 if (oldpids[nb_oldpids] <= 0)
1485 usage(progname);
1486 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001487 }
1488 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001489 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
1490 /* now that's a cfgfile list */
1491 argv++; argc--;
1492 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001493 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001494 ha_alert("Cannot load configuration file/directory %s : %s\n",
1495 *argv,
1496 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +02001497 exit(1);
1498 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001499 argv++; argc--;
1500 }
1501 break;
1502 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001503 else { /* >=2 args */
1504 argv++; argc--;
1505 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001506 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001507
1508 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +02001509 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001510 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +01001511 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001512 case 'N' : cfg_maxpconn = atol(*argv); break;
William Lallemanddaf4cd22018-04-17 16:46:13 +02001513 case 'L' :
1514 strncpy(localpeer, *argv, sizeof(localpeer) - 1);
1515 setenv("HAPROXY_LOCALPEER", localpeer, 1);
1516 break;
Willy Tarreau5d01a632009-06-22 16:02:30 +02001517 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +02001518 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001519 ha_alert("Cannot load configuration file/directory %s : %s\n",
1520 *argv,
1521 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +02001522 exit(1);
1523 }
Willy Tarreau5d01a632009-06-22 16:02:30 +02001524 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001525 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001526 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001527 }
1528 }
1529 }
1530 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001531 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001532 argv++; argc--;
1533 }
1534
Christopher Faulete3a5e352017-10-24 13:53:54 +02001535 global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
1536 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001537
William Lallemand944e6192018-11-21 15:48:31 +01001538 if (getenv("HAPROXY_MWORKER_WAIT_ONLY")) {
William Lallemandcb11fd22017-06-01 17:38:52 +02001539 unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
William Lallemand944e6192018-11-21 15:48:31 +01001540 global.mode |= MODE_MWORKER_WAIT;
1541 global.mode &= ~MODE_MWORKER;
William Lallemandcb11fd22017-06-01 17:38:52 +02001542 }
1543
1544 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") != NULL)) {
1545 atexit_flag = 1;
1546 atexit(reexec_on_failure);
1547 }
1548
Willy Tarreau576132e2011-09-10 19:26:56 +02001549 if (change_dir && chdir(change_dir) < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001550 ha_alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
Willy Tarreau576132e2011-09-10 19:26:56 +02001551 exit(1);
1552 }
1553
Willy Tarreaubaaee002006-06-26 02:48:02 +02001554 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001555
1556 init_default_instance();
1557
William Lallemand944e6192018-11-21 15:48:31 +01001558 /* in wait mode, we don't try to read the configuration files */
1559 if (!(global.mode & MODE_MWORKER_WAIT)) {
Willy Tarreauc4382422009-12-06 13:10:44 +01001560
William Lallemand944e6192018-11-21 15:48:31 +01001561 /* handle cfgfiles that are actually directories */
1562 cfgfiles_expand_directories();
1563
1564 if (LIST_ISEMPTY(&cfg_cfgfiles))
1565 usage(progname);
1566
1567
1568 list_for_each_entry(wl, &cfg_cfgfiles, list) {
1569 int ret;
1570
1571 ret = readcfgfile(wl->s);
1572 if (ret == -1) {
1573 ha_alert("Could not open configuration file %s : %s\n",
1574 wl->s, strerror(errno));
1575 exit(1);
1576 }
1577 if (ret & (ERR_ABORT|ERR_FATAL))
1578 ha_alert("Error(s) found in configuration file : %s\n", wl->s);
1579 err_code |= ret;
1580 if (err_code & ERR_ABORT)
1581 exit(1);
Willy Tarreauc4382422009-12-06 13:10:44 +01001582 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001583
William Lallemand944e6192018-11-21 15:48:31 +01001584 /* do not try to resolve arguments nor to spot inconsistencies when
1585 * the configuration contains fatal errors caused by files not found
1586 * or failed memory allocations.
1587 */
1588 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1589 ha_alert("Fatal errors found in configuration.\n");
1590 exit(1);
1591 }
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001592 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001593 if (global.mode & MODE_MWORKER) {
1594 int proc;
William Lallemand16dd1b32018-11-19 18:46:18 +01001595 struct mworker_proc *tmproc;
1596
1597 if (getenv("HAPROXY_MWORKER_REEXEC") == NULL) {
1598
William Lallemandf3a86832019-04-01 11:29:58 +02001599 tmproc = calloc(1, sizeof(*tmproc));
William Lallemand16dd1b32018-11-19 18:46:18 +01001600 if (!tmproc) {
1601 ha_alert("Cannot allocate process structures.\n");
1602 exit(EXIT_FAILURE);
1603 }
1604 tmproc->type = 'm'; /* master */
1605 tmproc->reloads = 0;
1606 tmproc->relative_pid = 0;
1607 tmproc->pid = pid;
1608 tmproc->timestamp = start_date.tv_sec;
1609 tmproc->ipc_fd[0] = -1;
1610 tmproc->ipc_fd[1] = -1;
1611
1612 proc_self = tmproc;
1613
1614 LIST_ADDQ(&proc_list, &tmproc->list);
1615 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001616
1617 for (proc = 0; proc < global.nbproc; proc++) {
William Lallemandce83b4a2018-10-26 14:47:30 +02001618
William Lallemandf3a86832019-04-01 11:29:58 +02001619 tmproc = calloc(1, sizeof(*tmproc));
William Lallemandce83b4a2018-10-26 14:47:30 +02001620 if (!tmproc) {
1621 ha_alert("Cannot allocate process structures.\n");
1622 exit(EXIT_FAILURE);
1623 }
1624
William Lallemand16dd1b32018-11-19 18:46:18 +01001625 tmproc->type = 'w'; /* worker */
William Lallemandce83b4a2018-10-26 14:47:30 +02001626 tmproc->pid = -1;
1627 tmproc->reloads = 0;
William Lallemande3683302018-11-19 18:46:17 +01001628 tmproc->timestamp = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001629 tmproc->relative_pid = 1 + proc;
William Lallemand550db6d2018-11-06 17:37:12 +01001630 tmproc->ipc_fd[0] = -1;
1631 tmproc->ipc_fd[1] = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001632
1633 if (mworker_cli_sockpair_new(tmproc, proc) < 0) {
1634 exit(EXIT_FAILURE);
1635 }
1636
1637 LIST_ADDQ(&proc_list, &tmproc->list);
1638 }
William Lallemand944e6192018-11-21 15:48:31 +01001639 }
1640 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
1641 struct wordlist *it, *c;
1642
William Lallemand1b663612018-10-26 14:47:33 +02001643 mworker_env_to_proc_list(); /* get the info of the children in the env */
William Lallemand8a022572018-10-26 14:47:35 +02001644
William Lallemande7361152018-10-26 14:47:36 +02001645
William Lallemand550db6d2018-11-06 17:37:12 +01001646 if (!LIST_ISEMPTY(&mworker_cli_conf)) {
William Lallemande7361152018-10-26 14:47:36 +02001647
William Lallemand550db6d2018-11-06 17:37:12 +01001648 if (mworker_cli_proxy_create() < 0) {
William Lallemande7361152018-10-26 14:47:36 +02001649 ha_alert("Can't create the master's CLI.\n");
1650 exit(EXIT_FAILURE);
1651 }
William Lallemande7361152018-10-26 14:47:36 +02001652
William Lallemand550db6d2018-11-06 17:37:12 +01001653 list_for_each_entry_safe(c, it, &mworker_cli_conf, list) {
1654
1655 if (mworker_cli_proxy_new_listener(c->s) < 0) {
1656 ha_alert("Can't create the master's CLI.\n");
1657 exit(EXIT_FAILURE);
1658 }
1659 LIST_DEL(&c->list);
1660 free(c->s);
1661 free(c);
1662 }
1663 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001664 }
1665
Willy Tarreaubb925012009-07-23 13:36:36 +02001666 err_code |= check_config_validity();
1667 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001668 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001669 exit(1);
1670 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001671
Willy Tarreau0f936722019-04-11 14:47:08 +02001672 pattern_finalize_config();
1673
Willy Tarreau70060452015-12-14 12:46:07 +01001674 /* recompute the amount of per-process memory depending on nbproc and
1675 * the shared SSL cache size (allowed to exist in all processes).
1676 */
1677 if (global.rlimit_memmax_all) {
1678#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
1679 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
1680
1681 global.rlimit_memmax =
1682 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
1683 ssl_cache_bytes) / global.nbproc +
1684 ssl_cache_bytes + 1048575LL) / 1048576LL;
1685#else
1686 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
1687#endif
1688 }
1689
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001690#ifdef CONFIG_HAP_NS
1691 err_code |= netns_init();
1692 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001693 ha_alert("Failed to initialize namespace support.\n");
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001694 exit(1);
1695 }
1696#endif
1697
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001698 /* Apply server states */
1699 apply_server_state();
1700
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001701 for (px = proxies_list; px; px = px->next)
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001702 srv_compute_all_admin_states(px);
1703
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001704 /* Apply servers' configured address */
1705 err_code |= srv_init_addr();
1706 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001707 ha_alert("Failed to initialize server(s) addr.\n");
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001708 exit(1);
1709 }
1710
Willy Tarreaubaaee002006-06-26 02:48:02 +02001711 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001712 struct peers *pr;
1713 struct proxy *px;
1714
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001715 for (pr = cfg_peers; pr; pr = pr->next)
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001716 if (pr->peers_fe)
1717 break;
1718
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001719 for (px = proxies_list; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02001720 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001721 break;
1722
1723 if (pr || px) {
1724 /* At least one peer or one listener has been found */
1725 qfprintf(stdout, "Configuration file is valid\n");
1726 exit(0);
1727 }
1728 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
1729 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001730 }
1731
Emeric Brunc60def82017-09-27 14:59:38 +02001732 global_listener_queue_task = task_new(MAX_THREADS_MASK);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001733 if (!global_listener_queue_task) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001734 ha_alert("Out of memory when initializing global task\n");
Willy Tarreaue9b26022011-08-01 20:57:55 +02001735 exit(1);
1736 }
1737 /* very simple initialization, users will queue the task if needed */
1738 global_listener_queue_task->context = NULL; /* not even a context! */
1739 global_listener_queue_task->process = manage_global_listener_queue;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001740
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001741 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02001742 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02001743
Willy Tarreaue6945732016-12-21 19:57:00 +01001744 list_for_each_entry(pcf, &post_check_list, list) {
1745 err_code |= pcf->fct();
1746 if (err_code & (ERR_ABORT|ERR_FATAL))
1747 exit(1);
1748 }
1749
Willy Tarreaubaaee002006-06-26 02:48:02 +02001750 if (cfg_maxconn > 0)
1751 global.maxconn = cfg_maxconn;
1752
Willy Tarreau8d687d82019-03-01 09:39:42 +01001753 if (global.stats_fe)
1754 global.maxsock += global.stats_fe->maxconn;
1755
1756 if (cfg_peers) {
1757 /* peers also need to bypass global maxconn */
1758 struct peers *p = cfg_peers;
1759
1760 for (p = cfg_peers; p; p = p->next)
1761 if (p->peers_fe)
1762 global.maxsock += p->peers_fe->maxconn;
1763 }
1764
Willy Tarreaubaaee002006-06-26 02:48:02 +02001765 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02001766 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001767 global.pidfile = strdup(cfg_pidfile);
1768 }
1769
Willy Tarreaud0256482015-01-15 21:45:22 +01001770 /* Now we want to compute the maxconn and possibly maxsslconn values.
Willy Tarreauac350932019-03-01 15:43:14 +01001771 * It's a bit tricky. Maxconn defaults to the pre-computed value based
1772 * on rlim_fd_cur and the number of FDs in use due to the configuration,
1773 * and maxsslconn defaults to DEFAULT_MAXSSLCONN. On top of that we can
1774 * enforce a lower limit based on memmax.
Willy Tarreaud0256482015-01-15 21:45:22 +01001775 *
1776 * If memmax is set, then it depends on which values are set. If
1777 * maxsslconn is set, we use memmax to determine how many cleartext
1778 * connections may be added, and set maxconn to the sum of the two.
1779 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1780 * the remaining amount of memory between memmax and the cleartext
1781 * connections. If neither are set, then it is considered that all
1782 * connections are SSL-capable, and maxconn is computed based on this,
1783 * then maxsslconn accordingly. We need to know if SSL is used on the
1784 * frontends, backends, or both, because when it's used on both sides,
1785 * we need twice the value for maxsslconn, but we only count the
1786 * handshake once since it is not performed on the two sides at the
1787 * same time (frontend-side is terminated before backend-side begins).
1788 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001789 * ssl_handshake_cost during its initialization. In any case, if
1790 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1791 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001792 */
Willy Tarreauac350932019-03-01 15:43:14 +01001793 ideal_maxconn = compute_ideal_maxconn();
1794
Willy Tarreaud0256482015-01-15 21:45:22 +01001795 if (!global.rlimit_memmax) {
1796 if (global.maxconn == 0) {
Willy Tarreauac350932019-03-01 15:43:14 +01001797 global.maxconn = ideal_maxconn;
Willy Tarreaud0256482015-01-15 21:45:22 +01001798 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1799 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1800 }
1801 }
1802#ifdef USE_OPENSSL
1803 else if (!global.maxconn && !global.maxsslconn &&
1804 (global.ssl_used_frontend || global.ssl_used_backend)) {
1805 /* memmax is set, compute everything automatically. Here we want
1806 * to ensure that all SSL connections will be served. We take
1807 * care of the number of sides where SSL is used, and consider
1808 * the worst case : SSL used on both sides and doing a handshake
1809 * simultaneously. Note that we can't have more than maxconn
1810 * handshakes at a time by definition, so for the worst case of
1811 * two SSL conns per connection, we count a single handshake.
1812 */
1813 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1814 int64_t mem = global.rlimit_memmax * 1048576ULL;
1815
1816 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1817 mem -= global.maxzlibmem;
1818 mem = mem * MEM_USABLE_RATIO;
1819
1820 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001821 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001822 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1823 global.ssl_handshake_max_cost); // 1 handshake per connection max
1824
Willy Tarreauac350932019-03-01 15:43:14 +01001825 global.maxconn = MIN(global.maxconn, ideal_maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001826 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001827#ifdef SYSTEM_MAXCONN
Willy Tarreauca783d42019-03-13 10:03:07 +01001828 if (global.maxconn > SYSTEM_MAXCONN)
1829 global.maxconn = SYSTEM_MAXCONN;
Willy Tarreau474b96a2015-01-28 19:03:21 +01001830#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001831 global.maxsslconn = sides * global.maxconn;
1832 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1833 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1834 global.maxconn, global.maxsslconn);
1835 }
1836 else if (!global.maxsslconn &&
1837 (global.ssl_used_frontend || global.ssl_used_backend)) {
1838 /* memmax and maxconn are known, compute maxsslconn automatically.
1839 * maxsslconn being forced, we don't know how many of it will be
1840 * on each side if both sides are being used. The worst case is
1841 * when all connections use only one SSL instance because
1842 * handshakes may be on two sides at the same time.
1843 */
1844 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1845 int64_t mem = global.rlimit_memmax * 1048576ULL;
1846 int64_t sslmem;
1847
1848 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1849 mem -= global.maxzlibmem;
1850 mem = mem * MEM_USABLE_RATIO;
1851
Willy Tarreau87b09662015-04-03 00:22:06 +02001852 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001853 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1854 global.maxsslconn = round_2dig(global.maxsslconn);
1855
1856 if (sslmem <= 0 || global.maxsslconn < sides) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001857 ha_alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1858 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1859 "without SSL is %d, but %d was found and SSL is in use.\n",
1860 global.rlimit_memmax,
1861 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
1862 global.maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001863 exit(1);
1864 }
1865
1866 if (global.maxsslconn > sides * global.maxconn)
1867 global.maxsslconn = sides * global.maxconn;
1868
1869 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1870 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1871 }
1872#endif
1873 else if (!global.maxconn) {
1874 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1875 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1876 int64_t mem = global.rlimit_memmax * 1048576ULL;
1877 int64_t clearmem;
1878
1879 if (global.ssl_used_frontend || global.ssl_used_backend)
1880 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1881
1882 mem -= global.maxzlibmem;
1883 mem = mem * MEM_USABLE_RATIO;
1884
1885 clearmem = mem;
1886 if (sides)
1887 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1888
Willy Tarreau87b09662015-04-03 00:22:06 +02001889 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreauac350932019-03-01 15:43:14 +01001890 global.maxconn = MIN(global.maxconn, ideal_maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001891 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001892#ifdef SYSTEM_MAXCONN
Willy Tarreauca783d42019-03-13 10:03:07 +01001893 if (global.maxconn > SYSTEM_MAXCONN)
1894 global.maxconn = SYSTEM_MAXCONN;
Willy Tarreau474b96a2015-01-28 19:03:21 +01001895#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001896
1897 if (clearmem <= 0 || !global.maxconn) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001898 ha_alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
1899 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1900 "is %d, but %d was found.\n",
1901 global.rlimit_memmax,
1902 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
1903 global.maxsslconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001904 exit(1);
1905 }
1906
1907 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1908 if (sides && global.maxsslconn > sides * global.maxconn) {
1909 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
1910 "to be limited to %d. Better reduce global.maxsslconn to get more "
1911 "room for extra connections.\n", global.maxsslconn, global.maxconn);
1912 }
1913 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
1914 }
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001915 }
1916
Willy Tarreau5a023f02019-03-01 14:19:31 +01001917 if (!global.maxpipes)
1918 global.maxpipes = compute_ideal_maxpipes();
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001919
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001920 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001921 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01001922 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreau2c58b412019-03-14 19:10:55 +01001923 global.maxsock += global.nbthread; /* one epoll_fd/kqueue_fd per thread */
1924 global.maxsock += 2 * global.nbthread; /* one wake-up pipe (2 fd) per thread */
1925
Emeric Brunece0c332017-12-06 13:51:49 +01001926 /* compute fd used by async engines */
1927 if (global.ssl_used_async_engines) {
1928 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1929 global.maxsock += global.maxconn * sides * global.ssl_used_async_engines;
1930 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001931
Willy Tarreauc8d5b952019-02-27 17:25:52 +01001932 proxy_adjust_all_maxconn();
1933
Willy Tarreau1db37712007-06-03 17:16:49 +02001934 if (global.tune.maxpollevents <= 0)
1935 global.tune.maxpollevents = MAX_POLL_EVENTS;
1936
Olivier Houchard1599b802018-05-24 18:59:04 +02001937 if (global.tune.runqueue_depth <= 0)
1938 global.tune.runqueue_depth = RUNQUEUE_DEPTH;
1939
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01001940 if (global.tune.recv_enough == 0)
1941 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
1942
Willy Tarreau27097842015-09-28 13:53:23 +02001943 if (global.tune.maxrewrite < 0)
1944 global.tune.maxrewrite = MAXREWRITE;
1945
Willy Tarreau27a674e2009-08-17 07:23:33 +02001946 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
1947 global.tune.maxrewrite = global.tune.bufsize / 2;
1948
Willy Tarreaubaaee002006-06-26 02:48:02 +02001949 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
1950 /* command line debug mode inhibits configuration mode */
William Lallemand095ba4c2017-06-01 17:38:50 +02001951 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001952 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
1953 }
1954
William Lallemand095ba4c2017-06-01 17:38:50 +02001955 if (arg_mode & MODE_DAEMON) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001956 /* command line daemon mode inhibits foreground and debug modes mode */
1957 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
William Lallemand095ba4c2017-06-01 17:38:50 +02001958 global.mode |= arg_mode & MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001959 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001960
1961 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001962
William Lallemand095ba4c2017-06-01 17:38:50 +02001963 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001964 ha_warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
William Lallemand095ba4c2017-06-01 17:38:50 +02001965 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001966 }
1967
William Lallemand095ba4c2017-06-01 17:38:50 +02001968 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_MWORKER))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001969 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
Christopher Faulet767a84b2017-11-24 16:50:31 +01001970 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 +02001971 global.nbproc = 1;
1972 }
1973
1974 if (global.nbproc < 1)
1975 global.nbproc = 1;
1976
Christopher Fauletbe0faa22017-08-29 15:37:10 +02001977 if (global.nbthread < 1)
1978 global.nbthread = 1;
1979
Christopher Faulet3ef26392017-08-29 16:46:57 +02001980 /* Realloc trash buffers because global.tune.bufsize may have changed */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001981 if (!init_trash_buffers(0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001982 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet3ef26392017-08-29 16:46:57 +02001983 exit(1);
1984 }
1985
Christopher Faulet96d44832017-11-14 22:02:30 +01001986 if (!init_log_buffers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001987 ha_alert("failed to initialize log buffers.\n");
Christopher Faulet96d44832017-11-14 22:02:30 +01001988 exit(1);
1989 }
1990
Willy Tarreauef1d1f82007-04-16 00:25:25 +02001991 /*
1992 * Note: we could register external pollers here.
1993 * Built-in pollers have been registered before main().
1994 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001995
Willy Tarreau43b78992009-01-25 15:42:27 +01001996 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001997 disable_poller("kqueue");
1998
Willy Tarreau43b78992009-01-25 15:42:27 +01001999 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002000 disable_poller("epoll");
2001
Willy Tarreau43b78992009-01-25 15:42:27 +01002002 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002003 disable_poller("poll");
2004
Willy Tarreau43b78992009-01-25 15:42:27 +01002005 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002006 disable_poller("select");
2007
2008 /* Note: we could disable any poller by name here */
2009
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002010 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02002011 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002012 fprintf(stderr, "\n");
2013 list_filters(stderr);
2014 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002015
Willy Tarreau4f60f162007-04-08 16:39:58 +02002016 if (!init_pollers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002017 ha_alert("No polling mechanism available.\n"
2018 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
2019 " is too low on this platform to support maxconn and the number of listeners\n"
2020 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
2021 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
2022 " global maxconn setting to accommodate the system's limitation. For reference,\n"
2023 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
2024 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
2025 " check build settings using 'haproxy -vv'.\n\n",
2026 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002027 exit(1);
2028 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002029 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2030 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002031 }
2032
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002033 if (!global.node)
2034 global.node = strdup(hostname);
2035
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01002036 if (!hlua_post_init())
2037 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01002038
Maxime de Roucy0f503922016-05-13 23:52:55 +02002039 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002040}
2041
Simon Horman6fb82592011-07-15 13:14:11 +09002042static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09002043{
Simon Hormanac821422011-07-15 13:14:09 +09002044 struct acl_term_suite *suite, *suiteb;
2045 struct acl_term *term, *termb;
2046
Simon Horman6fb82592011-07-15 13:14:11 +09002047 if (!cond)
2048 return;
2049
2050 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
2051 list_for_each_entry_safe(term, termb, &suite->terms, list) {
2052 LIST_DEL(&term->list);
2053 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09002054 }
Simon Horman6fb82592011-07-15 13:14:11 +09002055 LIST_DEL(&suite->list);
2056 free(suite);
2057 }
2058
2059 free(cond);
2060}
2061
2062static void deinit_tcp_rules(struct list *rules)
2063{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02002064 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09002065
2066 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09002067 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09002068 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09002069 free(trule);
2070 }
2071}
2072
Simon Horman6fb82592011-07-15 13:14:11 +09002073static void deinit_stick_rules(struct list *rules)
2074{
2075 struct sticking_rule *rule, *ruleb;
2076
2077 list_for_each_entry_safe(rule, ruleb, rules, list) {
2078 LIST_DEL(&rule->list);
2079 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02002080 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09002081 free(rule);
2082 }
2083}
2084
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002085void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002086{
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002087 struct proxy *p = proxies_list, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002088 struct cap_hdr *h,*h_next;
2089 struct server *s,*s_next;
2090 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002091 struct acl_cond *cond, *condb;
2092 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002093 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002094 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002095 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002096 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002097 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01002098 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002099 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02002100 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01002101 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002102 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002103 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01002104 struct post_deinit_fct *pdf;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002105 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002106
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002107 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002108 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02002109 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002110 free(p->id);
2111 free(p->check_req);
2112 free(p->cookie_name);
2113 free(p->cookie_domain);
Willy Tarreau4c03d1c2019-01-14 15:23:54 +01002114 free(p->lbprm.arg_str);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002115 free(p->capture_name);
2116 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09002117 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02002118 if (p->conf.logformat_string != default_http_log_format &&
2119 p->conf.logformat_string != default_tcp_log_format &&
2120 p->conf.logformat_string != clf_http_log_format)
2121 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02002122
Willy Tarreau62a61232013-04-12 18:13:46 +02002123 free(p->conf.lfs_file);
2124 free(p->conf.uniqueid_format_string);
2125 free(p->conf.uif_file);
Willy Tarreau0cac26c2019-01-14 16:55:42 +01002126 if ((p->lbprm.algo & BE_LB_LKUP) == BE_LB_LKUP_MAP)
2127 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002128
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002129 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
2130 free(p->conf.logformat_sd_string);
2131 free(p->conf.lfsd_file);
2132
Willy Tarreaua534fea2008-08-03 12:19:50 +02002133 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02002134 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002135
Willy Tarreauf4f04122010-01-28 18:10:50 +01002136 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
2137 LIST_DEL(&cwl->list);
2138 free(cwl->s);
2139 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002140 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002141
Willy Tarreauf4f04122010-01-28 18:10:50 +01002142 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
2143 LIST_DEL(&cwl->list);
2144 free(cwl->s);
2145 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002146 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002147
Willy Tarreaub80c2302007-11-30 20:51:32 +01002148 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
2149 LIST_DEL(&cond->list);
2150 prune_acl_cond(cond);
2151 free(cond);
2152 }
2153
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002154 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002155 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002156 regex_free(exp->preg);
2157 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002158 }
2159
Willy Tarreau98d04852015-05-26 12:18:29 +02002160 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002161 expb = exp;
2162 exp = exp->next;
2163 free(expb);
2164 }
2165
2166 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002167 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002168 regex_free(exp->preg);
2169 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002170 }
2171
Willy Tarreau98d04852015-05-26 12:18:29 +02002172 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002173 expb = exp;
2174 exp = exp->next;
2175 free(expb);
2176 }
2177
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002178 /* build a list of unique uri_auths */
2179 if (!ua)
2180 ua = p->uri_auth;
2181 else {
2182 /* check if p->uri_auth is unique */
2183 for (uap = ua; uap; uap=uap->next)
2184 if (uap == p->uri_auth)
2185 break;
2186
Willy Tarreauaccc4e12008-06-24 11:14:45 +02002187 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002188 /* add it, if it is */
2189 p->uri_auth->next = ua;
2190 ua = p->uri_auth;
2191 }
2192 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002193
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002194 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
2195 LIST_DEL(&acl->list);
2196 prune_acl(acl);
2197 free(acl);
2198 }
2199
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002200 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
2201 LIST_DEL(&srule->list);
2202 prune_acl_cond(srule->cond);
2203 free(srule->cond);
2204 free(srule);
2205 }
2206
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002207 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
2208 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002209 if (rule->cond) {
2210 prune_acl_cond(rule->cond);
2211 free(rule->cond);
Thierry FOURNIER / OZON.IO4ed1c952016-11-24 23:57:54 +01002212 free(rule->file);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002213 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002214 free(rule);
2215 }
2216
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002217 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
2218 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01002219 if (rdr->cond) {
2220 prune_acl_cond(rdr->cond);
2221 free(rdr->cond);
2222 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002223 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01002224 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
2225 LIST_DEL(&lf->list);
2226 free(lf);
2227 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002228 free(rdr);
2229 }
2230
William Lallemand0f99e342011-10-12 17:50:54 +02002231 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
2232 LIST_DEL(&log->list);
2233 free(log);
2234 }
2235
William Lallemand723b73a2012-02-08 16:37:49 +01002236 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
2237 LIST_DEL(&lf->list);
2238 free(lf);
2239 }
2240
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002241 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
2242 LIST_DEL(&lf->list);
2243 free(lf);
2244 }
2245
Simon Hormanac821422011-07-15 13:14:09 +09002246 deinit_tcp_rules(&p->tcp_req.inspect_rules);
Kevin Zhu13ebef72019-01-30 16:01:21 +08002247 deinit_tcp_rules(&p->tcp_rep.inspect_rules);
Simon Hormanac821422011-07-15 13:14:09 +09002248 deinit_tcp_rules(&p->tcp_req.l4_rules);
2249
Simon Horman6fb82592011-07-15 13:14:11 +09002250 deinit_stick_rules(&p->storersp_rules);
2251 deinit_stick_rules(&p->sticking_rules);
2252
Willy Tarreaubaaee002006-06-26 02:48:02 +02002253 h = p->req_cap;
2254 while (h) {
2255 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002256 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002257 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002258 free(h);
2259 h = h_next;
2260 }/* end while(h) */
2261
2262 h = p->rsp_cap;
2263 while (h) {
2264 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002265 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002266 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002267 free(h);
2268 h = h_next;
2269 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002270
Willy Tarreaubaaee002006-06-26 02:48:02 +02002271 s = p->srv;
2272 while (s) {
2273 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002274
Willy Tarreau5b3a2022012-09-28 15:01:02 +02002275 if (s->check.task) {
2276 task_delete(s->check.task);
2277 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002278 }
Simon Hormand60d6912013-11-25 10:46:36 +09002279 if (s->agent.task) {
2280 task_delete(s->agent.task);
2281 task_free(s->agent.task);
2282 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002283
Willy Tarreau2e993902011-10-31 11:53:20 +01002284 if (s->warmup) {
2285 task_delete(s->warmup);
2286 task_free(s->warmup);
2287 }
2288
Willy Tarreaua534fea2008-08-03 12:19:50 +02002289 free(s->id);
2290 free(s->cookie);
Willy Tarreauc9fa0482018-07-10 17:43:27 +02002291 free(s->check.bi.area);
2292 free(s->check.bo.area);
2293 free(s->agent.bi.area);
2294 free(s->agent.bo.area);
James Brown55f9ff12015-10-21 18:19:05 -07002295 free(s->agent.send_string);
Christopher Faulet67957bd2017-09-27 11:00:59 +02002296 free(s->hostname_dn);
Sárközi, László34c01792014-09-05 10:08:23 +02002297 free((char*)s->conf.file);
Olivier Houchard7fc3be72018-11-22 18:50:54 +01002298 free(s->idle_conns);
2299 free(s->priv_conns);
2300 free(s->safe_conns);
Olivier Houchard0c18a6f2018-12-02 14:11:41 +01002301 free(s->idle_orphan_conns);
Olivier Houchardf1314812019-02-18 16:41:17 +01002302 free(s->curr_idle_thr);
Willy Tarreau17d45382016-12-22 21:16:08 +01002303
2304 if (s->use_ssl || s->check.use_ssl) {
2305 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
2306 xprt_get(XPRT_SSL)->destroy_srv(s);
2307 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002308 HA_SPIN_DESTROY(&s->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002309 free(s);
2310 s = s_next;
2311 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002312
Willy Tarreau4348fad2012-09-20 16:48:07 +02002313 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002314 /*
2315 * Zombie proxy, the listener just pretend to be up
2316 * because they still hold an opened fd.
2317 * Close it and give the listener its real state.
2318 */
2319 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
2320 close(l->fd);
2321 l->state = LI_INIT;
2322 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02002323 unbind_listener(l);
2324 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002325 LIST_DEL(&l->by_fe);
2326 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002327 free(l->name);
2328 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002329 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002330 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002331
Willy Tarreau4348fad2012-09-20 16:48:07 +02002332 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002333 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01002334 if (bind_conf->xprt->destroy_bind_conf)
2335 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002336 free(bind_conf->file);
2337 free(bind_conf->arg);
2338 LIST_DEL(&bind_conf->by_fe);
2339 free(bind_conf);
2340 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02002341
Christopher Fauletd7c91962015-04-30 11:48:27 +02002342 flt_deinit(p);
2343
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002344 free(p->desc);
2345 free(p->fwdfor_hdr_name);
2346
Willy Tarreauff011f22011-01-06 17:51:27 +01002347 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06002348 free_http_res_rules(&p->http_res_rules);
Willy Tarreau1f89b182017-11-22 16:53:53 +01002349 task_free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01002350
Willy Tarreaubafbe012017-11-24 17:34:44 +01002351 pool_destroy(p->req_cap_pool);
2352 pool_destroy(p->rsp_cap_pool);
2353 pool_destroy(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002354
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002355 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002356 p = p->next;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002357 HA_SPIN_DESTROY(&p0->lbprm.lock);
2358 HA_SPIN_DESTROY(&p0->lock);
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002359 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002360 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02002361
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002362 while (ua) {
2363 uap = ua;
2364 ua = ua->next;
2365
Willy Tarreaua534fea2008-08-03 12:19:50 +02002366 free(uap->uri_prefix);
2367 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002368 free(uap->node);
2369 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002370
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002371 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01002372 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002373
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002374 free(uap);
2375 }
2376
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002377 userlist_free(userlist);
2378
David Carlier834cb2e2015-09-25 12:02:25 +01002379 cfg_unregister_sections();
2380
Christopher Faulet0132d062017-07-26 15:33:35 +02002381 deinit_log_buffers();
David Carlier834cb2e2015-09-25 12:02:25 +01002382
Willy Tarreaudd815982007-10-16 12:25:14 +02002383 protocol_unbind_all();
2384
Willy Tarreau05554e62016-12-21 20:46:26 +01002385 list_for_each_entry(pdf, &post_deinit_list, list)
2386 pdf->fct();
2387
Joe Williamsdf5b38f2010-12-29 17:05:48 +01002388 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02002389 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002390 free(global.chroot); global.chroot = NULL;
2391 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002392 free(global.node); global.node = NULL;
2393 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002394 free(oldpids); oldpids = NULL;
Willy Tarreau1f89b182017-11-22 16:53:53 +01002395 task_free(global_listener_queue_task); global_listener_queue_task = NULL;
Olivier Houchard9ea5d362019-02-14 18:29:09 +01002396 task_free(idle_conn_task);
2397 idle_conn_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002398
William Lallemand0f99e342011-10-12 17:50:54 +02002399 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
2400 LIST_DEL(&log->list);
2401 free(log);
2402 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01002403 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02002404 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01002405 LIST_DEL(&wl->list);
2406 free(wl);
2407 }
2408
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002409 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
2410 if (bol->must_free)
2411 free((void *)bol->str);
2412 LIST_DEL(&bol->list);
2413 free(bol);
2414 }
2415
Christopher Fauletff2613e2016-11-09 11:36:17 +01002416 vars_prune(&global.vars, NULL, NULL);
Willy Tarreau2455ceb2018-11-26 15:57:34 +01002417 pool_destroy_all();
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002418 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002419} /* end deinit() */
2420
William Lallemand72160322018-11-06 17:37:16 +01002421
Willy Tarreau918ff602011-07-25 16:33:49 +02002422/* Runs the polling loop */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01002423static void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02002424{
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002425 int next, exp;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002426
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002427 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002428 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002429 /* Process a few tasks */
2430 process_runnable_tasks();
2431
William Lallemand1aab50b2018-06-07 09:46:01 +02002432 /* check if we caught some signals and process them in the
2433 first thread */
2434 if (tid == 0)
2435 signal_process_queue();
Willy Tarreau29857942009-05-10 09:01:21 +02002436
Willy Tarreau58b458d2008-06-29 22:40:23 +02002437 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002438 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002439
Willy Tarreau85c459d2018-08-02 10:54:31 +02002440 /* stop when there's nothing left to do */
William Lallemanda7199262018-11-16 16:57:20 +01002441 if ((jobs - unstoppable_jobs) == 0)
Willy Tarreau85c459d2018-08-02 10:54:31 +02002442 break;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002443
Willy Tarreau10146c92015-04-13 20:44:19 +02002444 /* expire immediately if events are pending */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002445 exp = now_ms;
Christopher Faulet32467fe2018-01-15 12:16:34 +01002446 if (fd_cache_mask & tid_bit)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002447 activity[tid].wake_cache++;
2448 else if (active_tasks_mask & tid_bit)
2449 activity[tid].wake_tasks++;
William Lallemand1aab50b2018-06-07 09:46:01 +02002450 else if (signal_queue_len && tid == 0)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002451 activity[tid].wake_signal++;
Olivier Houchard79321b92018-07-26 17:55:11 +02002452 else {
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002453 _HA_ATOMIC_OR(&sleeping_thread_mask, tid_bit);
2454 __ha_barrier_atomic_store();
Olivier Houchard79321b92018-07-26 17:55:11 +02002455 if (active_tasks_mask & tid_bit) {
2456 activity[tid].wake_tasks++;
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002457 _HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Olivier Houchard79321b92018-07-26 17:55:11 +02002458 } else
2459 exp = next;
2460 }
Willy Tarreau10146c92015-04-13 20:44:19 +02002461
Willy Tarreau58b458d2008-06-29 22:40:23 +02002462 /* The poller will ensure it returns around <next> */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002463 cur_poller.poll(&cur_poller, exp);
Olivier Houchard79321b92018-07-26 17:55:11 +02002464 if (sleeping_thread_mask & tid_bit)
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002465 _HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01002466 fd_process_cached_events();
Emeric Brun64cc49c2017-10-03 14:46:45 +02002467
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002468 activity[tid].loops++;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002469 }
2470}
2471
Christopher Faulet1d17c102017-08-29 15:38:48 +02002472static void *run_thread_poll_loop(void *data)
2473{
2474 struct per_thread_init_fct *ptif;
2475 struct per_thread_deinit_fct *ptdf;
Christopher Fauletda18b9d2018-01-25 16:10:16 +01002476 __decl_hathreads(static HA_SPINLOCK_T start_lock);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002477
Willy Tarreau0c026f42018-08-01 19:12:20 +02002478 ha_set_tid(*((unsigned int *)data));
Christopher Faulet1d17c102017-08-29 15:38:48 +02002479 tv_update_date(-1,-1);
2480
2481 list_for_each_entry(ptif, &per_thread_init_list, list) {
2482 if (!ptif->fct()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002483 ha_alert("failed to initialize thread %u.\n", tid);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002484 exit(1);
2485 }
2486 }
2487
William Lallemandbc193052018-09-11 10:06:26 +02002488 if ((global.mode & MODE_MWORKER) && master == 0) {
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002489 HA_SPIN_LOCK(START_LOCK, &start_lock);
2490 mworker_pipe_register();
2491 HA_SPIN_UNLOCK(START_LOCK, &start_lock);
2492 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002493
2494 protocol_enable_all();
Christopher Faulet1d17c102017-08-29 15:38:48 +02002495 run_poll_loop();
2496
2497 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
2498 ptdf->fct();
2499
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002500#ifdef USE_THREAD
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002501 _HA_ATOMIC_AND(&all_threads_mask, ~tid_bit);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002502 if (tid > 0)
2503 pthread_exit(NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002504#endif
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002505 return NULL;
2506}
Christopher Faulet1d17c102017-08-29 15:38:48 +02002507
Willy Tarreaue9b26022011-08-01 20:57:55 +02002508/* This is the global management task for listeners. It enables listeners waiting
2509 * for global resources when there are enough free resource, or at least once in
2510 * a while. It is designed to be called as a task.
2511 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02002512static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state)
Willy Tarreaue9b26022011-08-01 20:57:55 +02002513{
2514 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02002515 /* queue is empty, nothing to do */
2516 if (LIST_ISEMPTY(&global_listener_queue))
2517 goto out;
2518
2519 /* If there are still too many concurrent connections, let's wait for
2520 * some of them to go away. We don't need to re-arm the timer because
2521 * each of them will scan the queue anyway.
2522 */
2523 if (unlikely(actconn >= global.maxconn))
2524 goto out;
2525
2526 /* We should periodically try to enable listeners waiting for a global
2527 * resource here, because it is possible, though very unlikely, that
2528 * they have been blocked by a temporary lack of global resource such
2529 * as a file descriptor or memory and that the temporary condition has
2530 * disappeared.
2531 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002532 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02002533
2534 out:
2535 t->expire = next;
2536 task_queue(t);
2537 return t;
2538}
Willy Tarreau4f60f162007-04-08 16:39:58 +02002539
Willy Tarreaubaaee002006-06-26 02:48:02 +02002540int main(int argc, char **argv)
2541{
2542 int err, retry;
2543 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02002544 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02002545 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002546
Olivier Houchard5fa300d2018-02-03 15:15:21 +01002547 setvbuf(stdout, NULL, _IONBF, 0);
Willy Tarreau5794fb02018-11-25 18:43:29 +01002548
Willy Tarreauff9c9142019-02-07 10:39:36 +01002549 /* this can only safely be done here, though it's optimized away by
2550 * the compiler.
2551 */
2552 if (MAX_PROCS < 1 || MAX_PROCS > LONGBITS) {
2553 ha_alert("MAX_PROCS value must be between 1 and %d inclusive; "
2554 "HAProxy was built with value %d, please fix it and rebuild.\n",
2555 LONGBITS, MAX_PROCS);
2556 exit(1);
2557 }
2558
Willy Tarreaubf696402019-03-01 10:09:28 +01002559 /* take a copy of initial limits before we possibly change them */
2560 getrlimit(RLIMIT_NOFILE, &limit);
2561 rlim_fd_cur_at_boot = limit.rlim_cur;
2562 rlim_fd_max_at_boot = limit.rlim_max;
2563
Willy Tarreau5794fb02018-11-25 18:43:29 +01002564 /* process all initcalls in order of potential dependency */
2565 RUN_INITCALLS(STG_PREPARE);
2566 RUN_INITCALLS(STG_LOCK);
2567 RUN_INITCALLS(STG_ALLOC);
2568 RUN_INITCALLS(STG_POOL);
2569 RUN_INITCALLS(STG_REGISTER);
2570 RUN_INITCALLS(STG_INIT);
2571
Emeric Bruncf20bf12010-10-22 16:06:11 +02002572 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002573 signal_register_fct(SIGQUIT, dump, SIGQUIT);
2574 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
2575 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
William Lallemand73b85e72017-06-01 17:38:51 +02002576 signal_register_fct(SIGUSR2, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002577
Willy Tarreaue437c442010-03-17 18:02:46 +01002578 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
2579 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
2580 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002581 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002582 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002583
Willy Tarreaudc23a922011-02-16 11:10:36 +01002584 /* ulimits */
2585 if (!global.rlimit_nofile)
2586 global.rlimit_nofile = global.maxsock;
2587
2588 if (global.rlimit_nofile) {
Willy Tarreaue5cfdac2019-03-01 10:32:05 +01002589 limit.rlim_cur = global.rlimit_nofile;
2590 limit.rlim_max = MAX(rlim_fd_max_at_boot, limit.rlim_cur);
2591
Willy Tarreaudc23a922011-02-16 11:10:36 +01002592 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02002593 /* try to set it to the max possible at least */
2594 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02002595 limit.rlim_cur = limit.rlim_max;
2596 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
2597 getrlimit(RLIMIT_NOFILE, &limit);
2598
Christopher Faulet767a84b2017-11-24 16:50:31 +01002599 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 +02002600 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002601 }
2602 }
2603
2604 if (global.rlimit_memmax) {
2605 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01002606 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002607#ifdef RLIMIT_AS
2608 if (setrlimit(RLIMIT_AS, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002609 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2610 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002611 }
2612#else
2613 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002614 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2615 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002616 }
2617#endif
2618 }
2619
Olivier Houchardf73629d2017-04-05 22:33:04 +02002620 if (old_unixsocket) {
William Lallemand85b0bd92017-06-01 17:38:53 +02002621 if (strcmp("/dev/null", old_unixsocket) != 0) {
2622 if (get_old_sockets(old_unixsocket) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002623 ha_alert("Failed to get the sockets from the old process!\n");
William Lallemand85b0bd92017-06-01 17:38:53 +02002624 if (!(global.mode & MODE_MWORKER))
2625 exit(1);
2626 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002627 }
2628 }
William Lallemand85b0bd92017-06-01 17:38:53 +02002629 get_cur_unixsocket();
2630
Willy Tarreaubaaee002006-06-26 02:48:02 +02002631 /* We will loop at most 100 times with 10 ms delay each time.
2632 * That's at most 1 second. We only send a signal to old pids
2633 * if we cannot grab at least one port.
2634 */
2635 retry = MAX_START_RETRIES;
2636 err = ERR_NONE;
2637 while (retry >= 0) {
2638 struct timeval w;
2639 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01002640 /* exit the loop on no error or fatal error */
2641 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002642 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02002643 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002644 break;
2645
2646 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
2647 * listening sockets. So on those platforms, it would be wiser to
2648 * simply send SIGUSR1, which will not be undoable.
2649 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02002650 if (tell_old_pids(SIGTTOU) == 0) {
2651 /* no need to wait if we can't contact old pids */
2652 retry = 0;
2653 continue;
2654 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002655 /* give some time to old processes to stop listening */
2656 w.tv_sec = 0;
2657 w.tv_usec = 10*1000;
2658 select(0, NULL, NULL, NULL, &w);
2659 retry--;
2660 }
2661
2662 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01002663 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02002664 if (retry != MAX_START_RETRIES && nb_oldpids) {
2665 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002666 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02002667 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002668 exit(1);
2669 }
2670
William Lallemand944e6192018-11-21 15:48:31 +01002671 if (!(global.mode & MODE_MWORKER_WAIT) && listeners == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002672 ha_alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002673 /* Note: we don't have to send anything to the old pids because we
2674 * never stopped them. */
2675 exit(1);
2676 }
2677
Emeric Bruncf20bf12010-10-22 16:06:11 +02002678 err = protocol_bind_all(errmsg, sizeof(errmsg));
2679 if ((err & ~ERR_WARN) != ERR_NONE) {
2680 if ((err & ERR_ALERT) || (err & ERR_WARN))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002681 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002682
Christopher Faulet767a84b2017-11-24 16:50:31 +01002683 ha_alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002684 protocol_unbind_all(); /* cleanup everything we can */
2685 if (nb_oldpids)
2686 tell_old_pids(SIGTTIN);
2687 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002688 } else if (err & ERR_WARN) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002689 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02002690 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002691 /* Ok, all listener should now be bound, close any leftover sockets
2692 * the previous process gave us, we don't need them anymore
2693 */
2694 while (xfer_sock_list != NULL) {
2695 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
2696 close(xfer_sock_list->fd);
2697 free(xfer_sock_list->iface);
2698 free(xfer_sock_list->namespace);
2699 free(xfer_sock_list);
2700 xfer_sock_list = tmpxfer;
2701 }
Willy Tarreaudd815982007-10-16 12:25:14 +02002702
Willy Tarreaubaaee002006-06-26 02:48:02 +02002703 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002704 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
2705 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002706
Willy Tarreaubaaee002006-06-26 02:48:02 +02002707 /* MODE_QUIET can inhibit alerts and warnings below this line */
2708
PiBa-NL149a81a2017-12-25 21:03:31 +01002709 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL) {
2710 /* either stdin/out/err are already closed or should stay as they are. */
2711 if ((global.mode & MODE_DAEMON)) {
2712 /* daemon mode re-executing, stdin/stdout/stderr are already closed so keep quiet */
2713 global.mode &= ~MODE_VERBOSE;
2714 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2715 }
2716 } else {
2717 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
2718 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01002719 stdio_quiet(-1);
PiBa-NL149a81a2017-12-25 21:03:31 +01002720 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002721 }
2722
2723 /* open log & pid files before the chroot */
William Lallemand80293002017-11-06 11:00:03 +01002724 if ((global.mode & MODE_DAEMON || global.mode & MODE_MWORKER) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002725 unlink(global.pidfile);
2726 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
2727 if (pidfd < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002728 ha_alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002729 if (nb_oldpids)
2730 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02002731 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002732 exit(1);
2733 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002734 }
2735
Willy Tarreaub38651a2007-03-24 17:24:39 +01002736 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002737 ha_alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
2738 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002739 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01002740 exit(1);
2741 }
2742
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002743 /* If the user is not root, we'll still let him try the configuration
2744 * but we inform him that unexpected behaviour may occur.
2745 */
2746 if ((global.last_checks & LSTCHK_NETADM) && getuid())
Christopher Faulet767a84b2017-11-24 16:50:31 +01002747 ha_warning("[%s.main()] Some options which require full privileges"
2748 " might not work well.\n"
2749 "", argv[0]);
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002750
William Lallemand095ba4c2017-06-01 17:38:50 +02002751 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2752
2753 /* chroot if needed */
2754 if (global.chroot != NULL) {
2755 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002756 ha_alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02002757 if (nb_oldpids)
2758 tell_old_pids(SIGTTIN);
2759 protocol_unbind_all();
2760 exit(1);
2761 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002762 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002763 }
2764
William Lallemand944e6192018-11-21 15:48:31 +01002765 if (nb_oldpids && !(global.mode & MODE_MWORKER_WAIT))
Willy Tarreaubb545b42010-08-25 12:58:59 +02002766 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002767
William Lallemand8a361b52017-06-20 11:20:33 +02002768 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
2769 nb_oldpids = 0;
2770 free(oldpids);
2771 oldpids = NULL;
2772 }
2773
2774
Willy Tarreaubaaee002006-06-26 02:48:02 +02002775 /* Note that any error at this stage will be fatal because we will not
2776 * be able to restart the old pids.
2777 */
2778
William Lallemand095ba4c2017-06-01 17:38:50 +02002779 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2780 /* setgid / setuid */
2781 if (global.gid) {
2782 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01002783 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2784 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002785
2786 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002787 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02002788 protocol_unbind_all();
2789 exit(1);
2790 }
2791 }
Michael Schererab012dd2013-01-12 18:35:19 +01002792
William Lallemand095ba4c2017-06-01 17:38:50 +02002793 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002794 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Michael Schererab012dd2013-01-12 18:35:19 +01002795 protocol_unbind_all();
2796 exit(1);
2797 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002798 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002799 /* check ulimits */
2800 limit.rlim_cur = limit.rlim_max = 0;
2801 getrlimit(RLIMIT_NOFILE, &limit);
2802 if (limit.rlim_cur < global.maxsock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002803 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",
2804 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002805 }
2806
William Lallemand944e6192018-11-21 15:48:31 +01002807 if (global.mode & (MODE_DAEMON | MODE_MWORKER | MODE_MWORKER_WAIT)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002808 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002809 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002810 int ret = 0;
2811 int proc;
William Lallemande1340412017-12-28 16:09:36 +01002812 int devnullfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002813
William Lallemand095ba4c2017-06-01 17:38:50 +02002814 /*
2815 * if daemon + mworker: must fork here to let a master
2816 * process live in background before forking children
2817 */
William Lallemand73b85e72017-06-01 17:38:51 +02002818
2819 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)
2820 && (global.mode & MODE_MWORKER)
2821 && (global.mode & MODE_DAEMON)) {
William Lallemand095ba4c2017-06-01 17:38:50 +02002822 ret = fork();
2823 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002824 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002825 protocol_unbind_all();
2826 exit(1); /* there has been an error */
William Lallemandbfd8eb52018-07-04 15:31:23 +02002827 } else if (ret > 0) { /* parent leave to daemonize */
William Lallemand095ba4c2017-06-01 17:38:50 +02002828 exit(0);
William Lallemandbfd8eb52018-07-04 15:31:23 +02002829 } else /* change the process group ID in the child (master process) */
2830 setsid();
William Lallemand095ba4c2017-06-01 17:38:50 +02002831 }
William Lallemande20b6a62017-06-01 17:38:55 +02002832
William Lallemande20b6a62017-06-01 17:38:55 +02002833
William Lallemanddeed7802017-11-06 11:00:04 +01002834 /* if in master-worker mode, write the PID of the father */
2835 if (global.mode & MODE_MWORKER) {
2836 char pidstr[100];
2837 snprintf(pidstr, sizeof(pidstr), "%d\n", getpid());
Willy Tarreau46ec48b2018-01-23 19:20:19 +01002838 if (pidfd >= 0)
2839 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
William Lallemanddeed7802017-11-06 11:00:04 +01002840 }
2841
Willy Tarreaubaaee002006-06-26 02:48:02 +02002842 /* the father launches the required number of processes */
William Lallemand944e6192018-11-21 15:48:31 +01002843 if (!(global.mode & MODE_MWORKER_WAIT)) {
William Lallemand9a1ee7a2019-04-01 11:30:02 +02002844 if (global.mode & MODE_MWORKER)
2845 mworker_ext_launch_all();
William Lallemand944e6192018-11-21 15:48:31 +01002846 for (proc = 0; proc < global.nbproc; proc++) {
2847 ret = fork();
2848 if (ret < 0) {
2849 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
2850 protocol_unbind_all();
2851 exit(1); /* there has been an error */
2852 }
2853 else if (ret == 0) /* child breaks here */
2854 break;
William Lallemand944e6192018-11-21 15:48:31 +01002855 if (pidfd >= 0 && !(global.mode & MODE_MWORKER)) {
2856 char pidstr[100];
2857 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
2858 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
2859 }
2860 if (global.mode & MODE_MWORKER) {
2861 struct mworker_proc *child;
William Lallemandce83b4a2018-10-26 14:47:30 +02002862
William Lallemand220567e2018-11-21 18:04:53 +01002863 ha_notice("New worker #%d (%d) forked\n", relative_pid, ret);
William Lallemand944e6192018-11-21 15:48:31 +01002864 /* find the right mworker_proc */
2865 list_for_each_entry(child, &proc_list, list) {
2866 if (child->relative_pid == relative_pid &&
William Lallemand9a1ee7a2019-04-01 11:30:02 +02002867 child->reloads == 0 && child->type == 'w') {
William Lallemand944e6192018-11-21 15:48:31 +01002868 child->timestamp = now.tv_sec;
2869 child->pid = ret;
2870 break;
2871 }
William Lallemandce83b4a2018-10-26 14:47:30 +02002872 }
2873 }
William Lallemandbc193052018-09-11 10:06:26 +02002874
William Lallemand944e6192018-11-21 15:48:31 +01002875 relative_pid++; /* each child will get a different one */
2876 pid_bit <<= 1;
2877 }
2878 } else {
2879 /* wait mode */
2880 global.nbproc = 1;
2881 proc = 1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002882 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002883
2884#ifdef USE_CPU_AFFINITY
2885 if (proc < global.nbproc && /* child */
Willy Tarreauff9c9142019-02-07 10:39:36 +01002886 proc < MAX_PROCS && /* only the first 32/64 processes may be pinned */
Christopher Fauletcb6a9452017-11-22 16:50:41 +01002887 global.cpu_map.proc[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002888#ifdef __FreeBSD__
Olivier Houchard97148f62017-08-16 17:29:11 +02002889 {
2890 cpuset_t cpuset;
2891 int i;
Christopher Fauletcb6a9452017-11-22 16:50:41 +01002892 unsigned long cpu_map = global.cpu_map.proc[proc];
Olivier Houchard97148f62017-08-16 17:29:11 +02002893
2894 CPU_ZERO(&cpuset);
2895 while ((i = ffsl(cpu_map)) > 0) {
2896 CPU_SET(i - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01002897 cpu_map &= ~(1UL << (i - 1));
Olivier Houchard97148f62017-08-16 17:29:11 +02002898 }
2899 ret = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset), &cpuset);
2900 }
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002901#else
Christopher Fauletcb6a9452017-11-22 16:50:41 +01002902 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map.proc[proc]);
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002903#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002904#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02002905 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02002906 if (pidfd >= 0) {
2907 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
2908 close(pidfd);
2909 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02002910
2911 /* We won't ever use this anymore */
Willy Tarreaud137dd32010-08-25 12:49:05 +02002912 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002913
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002914 if (proc == global.nbproc) {
William Lallemand944e6192018-11-21 15:48:31 +01002915 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
PiBa-NLbaf6ea42017-11-28 23:26:08 +01002916
2917 if ((!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
2918 (global.mode & MODE_DAEMON)) {
2919 /* detach from the tty, this is required to properly daemonize. */
William Lallemande1340412017-12-28 16:09:36 +01002920 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL))
2921 stdio_quiet(-1);
2922
PiBa-NLbaf6ea42017-11-28 23:26:08 +01002923 global.mode &= ~MODE_VERBOSE;
2924 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
PiBa-NLbaf6ea42017-11-28 23:26:08 +01002925 }
2926
William Lallemandb3f2be32018-09-11 10:06:18 +02002927 mworker_loop();
William Lallemand1499b9b2017-06-07 15:04:47 +02002928 /* should never get there */
2929 exit(EXIT_FAILURE);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002930 }
William Lallemandcf4e4962017-06-08 19:05:48 +02002931#if defined(USE_OPENSSL) && !defined(OPENSSL_NO_DH)
Grant Zhang872f9c22017-01-21 01:10:18 +00002932 ssl_free_dh();
2933#endif
William Lallemand1499b9b2017-06-07 15:04:47 +02002934 exit(0); /* parent must leave */
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002935 }
2936
William Lallemandcb11fd22017-06-01 17:38:52 +02002937 /* child must never use the atexit function */
2938 atexit_flag = 0;
2939
William Lallemandbc193052018-09-11 10:06:26 +02002940 /* close useless master sockets */
2941 if (global.mode & MODE_MWORKER) {
2942 struct mworker_proc *child, *it;
2943 master = 0;
2944
William Lallemand309dc9a2018-10-26 14:47:45 +02002945 mworker_cli_proxy_stop();
2946
William Lallemandbc193052018-09-11 10:06:26 +02002947 /* free proc struct of other processes */
2948 list_for_each_entry_safe(child, it, &proc_list, list) {
William Lallemandce83b4a2018-10-26 14:47:30 +02002949 /* close the FD of the master side for all
2950 * workers, we don't need to close the worker
2951 * side of other workers since it's done with
2952 * the bind_proc */
Tim Duesterhus742e0f92018-11-25 20:03:39 +01002953 if (child->ipc_fd[0] >= 0)
2954 close(child->ipc_fd[0]);
William Lallemandce83b4a2018-10-26 14:47:30 +02002955 if (child->relative_pid == relative_pid &&
2956 child->reloads == 0) {
2957 /* keep this struct if this is our pid */
2958 proc_self = child;
William Lallemandbc193052018-09-11 10:06:26 +02002959 continue;
William Lallemandce83b4a2018-10-26 14:47:30 +02002960 }
William Lallemandbc193052018-09-11 10:06:26 +02002961 LIST_DEL(&child->list);
2962 free(child);
2963 }
2964 }
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002965
William Lallemande1340412017-12-28 16:09:36 +01002966 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
2967 devnullfd = open("/dev/null", O_RDWR, 0);
2968 if (devnullfd < 0) {
2969 ha_alert("Cannot open /dev/null\n");
2970 exit(EXIT_FAILURE);
2971 }
2972 }
2973
William Lallemand095ba4c2017-06-01 17:38:50 +02002974 /* Must chroot and setgid/setuid in the children */
2975 /* chroot if needed */
2976 if (global.chroot != NULL) {
2977 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002978 ha_alert("[%s.main()] Cannot chroot1(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02002979 if (nb_oldpids)
2980 tell_old_pids(SIGTTIN);
2981 protocol_unbind_all();
2982 exit(1);
2983 }
2984 }
2985
2986 free(global.chroot);
2987 global.chroot = NULL;
2988
2989 /* setgid / setuid */
2990 if (global.gid) {
2991 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01002992 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2993 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002994
2995 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002996 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02002997 protocol_unbind_all();
2998 exit(1);
2999 }
3000 }
3001
3002 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003003 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003004 protocol_unbind_all();
3005 exit(1);
3006 }
3007
William Lallemand7f80eb22017-05-26 18:19:55 +02003008 /* pass through every cli socket, and check if it's bound to
3009 * the current process and if it exposes listeners sockets.
3010 * Caution: the GTUNE_SOCKET_TRANSFER is now set after the fork.
3011 * */
3012
3013 if (global.stats_fe) {
3014 struct bind_conf *bind_conf;
3015
3016 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
3017 if (bind_conf->level & ACCESS_FD_LISTENERS) {
3018 if (!bind_conf->bind_proc || bind_conf->bind_proc & (1UL << proc)) {
3019 global.tune.options |= GTUNE_SOCKET_TRANSFER;
3020 break;
3021 }
3022 }
3023 }
3024 }
3025
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003026 /* we might have to unbind some proxies from some processes */
Olivier Houchardfbc74e82017-11-24 16:54:05 +01003027 px = proxies_list;
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003028 while (px != NULL) {
3029 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02003030 if (!(px->bind_proc & (1UL << proc))) {
3031 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
3032 zombify_proxy(px);
3033 else
3034 stop_proxy(px);
3035 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003036 }
3037 px = px->next;
3038 }
3039
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003040 /* we might have to unbind some peers sections from some processes */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02003041 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003042 if (!curpeers->peers_fe)
3043 continue;
3044
3045 if (curpeers->peers_fe->bind_proc & (1UL << proc))
3046 continue;
3047
3048 stop_proxy(curpeers->peers_fe);
3049 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02003050 signal_unregister_handler(curpeers->sighandler);
3051 task_delete(curpeers->sync_task);
3052 task_free(curpeers->sync_task);
3053 curpeers->sync_task = NULL;
3054 task_free(curpeers->peers_fe->task);
3055 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003056 curpeers->peers_fe = NULL;
3057 }
3058
William Lallemand2e8fad92018-11-13 16:18:23 +01003059 /*
3060 * This is only done in daemon mode because we might want the
3061 * logs on stdout in mworker mode. If we're NOT in QUIET mode,
3062 * we should now close the 3 first FDs to ensure that we can
3063 * detach from the TTY. We MUST NOT do it in other cases since
3064 * it would have already be done, and 0-2 would have been
3065 * affected to listening sockets
Willy Tarreaubaaee002006-06-26 02:48:02 +02003066 */
William Lallemand2e8fad92018-11-13 16:18:23 +01003067 if ((global.mode & MODE_DAEMON) &&
3068 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02003069 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01003070 stdio_quiet(devnullfd);
Willy Tarreau106cb762008-11-16 07:40:34 +01003071 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003072 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
3073 }
3074 pid = getpid(); /* update child's pid */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003075 if (!(global.mode & MODE_MWORKER)) /* in mworker mode we don't want a new pgid for the children */
3076 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02003077 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02003078 }
3079
Christopher Faulete3a5e352017-10-24 13:53:54 +02003080 global.mode &= ~MODE_STARTING;
Willy Tarreau4f60f162007-04-08 16:39:58 +02003081 /*
3082 * That's it : the central polling loop. Run until we stop.
3083 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02003084#ifdef USE_THREAD
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003085 {
Christopher Faulet1d17c102017-08-29 15:38:48 +02003086 unsigned int *tids = calloc(global.nbthread, sizeof(unsigned int));
3087 pthread_t *threads = calloc(global.nbthread, sizeof(pthread_t));
3088 int i;
William Lallemand1aab50b2018-06-07 09:46:01 +02003089 sigset_t blocked_sig, old_sig;
Christopher Faulet1d17c102017-08-29 15:38:48 +02003090
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003091 /* Init tids array */
3092 for (i = 0; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003093 tids[i] = i;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003094
William Lallemand1aab50b2018-06-07 09:46:01 +02003095 /* ensure the signals will be blocked in every thread */
3096 sigfillset(&blocked_sig);
3097 sigdelset(&blocked_sig, SIGPROF);
3098 sigdelset(&blocked_sig, SIGBUS);
3099 sigdelset(&blocked_sig, SIGFPE);
3100 sigdelset(&blocked_sig, SIGILL);
3101 sigdelset(&blocked_sig, SIGSEGV);
3102 pthread_sigmask(SIG_SETMASK, &blocked_sig, &old_sig);
3103
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003104 /* Create nbthread-1 thread. The first thread is the current process */
3105 threads[0] = pthread_self();
3106 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003107 pthread_create(&threads[i], NULL, &run_thread_poll_loop, &tids[i]);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003108
Christopher Faulet62519022017-10-16 15:49:32 +02003109#ifdef USE_CPU_AFFINITY
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003110 /* Now the CPU affinity for all threads */
3111 for (i = 0; i < global.nbthread; i++) {
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003112 if (global.cpu_map.proc[relative_pid-1])
3113 global.cpu_map.thread[relative_pid-1][i] &= global.cpu_map.proc[relative_pid-1];
Christopher Faulet62519022017-10-16 15:49:32 +02003114
Willy Tarreau421f02e2018-01-20 18:19:22 +01003115 if (i < MAX_THREADS && /* only the first 32/64 threads may be pinned */
Olivier Houchard829aa242017-12-01 18:19:43 +01003116 global.cpu_map.thread[relative_pid-1][i]) {/* only do this if the thread has a THREAD map */
3117#if defined(__FreeBSD__) || defined(__NetBSD__)
3118 cpuset_t cpuset;
3119#else
3120 cpu_set_t cpuset;
3121#endif
3122 int j;
3123 unsigned long cpu_map = global.cpu_map.thread[relative_pid-1][i];
3124
3125 CPU_ZERO(&cpuset);
3126
3127 while ((j = ffsl(cpu_map)) > 0) {
3128 CPU_SET(j - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003129 cpu_map &= ~(1UL << (j - 1));
Olivier Houchard829aa242017-12-01 18:19:43 +01003130 }
Christopher Faulet62519022017-10-16 15:49:32 +02003131 pthread_setaffinity_np(threads[i],
Olivier Houchard829aa242017-12-01 18:19:43 +01003132 sizeof(cpuset), &cpuset);
3133 }
Christopher Faulet1d17c102017-08-29 15:38:48 +02003134 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003135#endif /* !USE_CPU_AFFINITY */
3136
William Lallemand1aab50b2018-06-07 09:46:01 +02003137 /* when multithreading we need to let only the thread 0 handle the signals */
William Lallemandd3801c12018-09-11 10:06:23 +02003138 haproxy_unblock_signals();
William Lallemand1aab50b2018-06-07 09:46:01 +02003139
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003140 /* Finally, start the poll loop for the first thread */
3141 run_thread_poll_loop(&tids[0]);
3142
3143 /* Wait the end of other threads */
3144 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003145 pthread_join(threads[i], NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003146
Christopher Faulet1d17c102017-08-29 15:38:48 +02003147 free(tids);
3148 free(threads);
3149
Christopher Fauletb79a94c2017-05-30 15:34:30 +02003150#if defined(DEBUG_THREAD) || defined(DEBUG_FULL)
3151 show_lock_stats();
3152#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003153 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003154#else /* ! USE_THREAD */
William Lallemandd3801c12018-09-11 10:06:23 +02003155 haproxy_unblock_signals();
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003156 run_thread_poll_loop((int []){0});
Christopher Faulet62519022017-10-16 15:49:32 +02003157
Christopher Faulet62519022017-10-16 15:49:32 +02003158#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003159
3160 /* Do some cleanup */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003161 deinit();
Christopher Faulet1d17c102017-08-29 15:38:48 +02003162
Willy Tarreaubaaee002006-06-26 02:48:02 +02003163 exit(0);
3164}
3165
3166
3167/*
3168 * Local variables:
3169 * c-indent-level: 8
3170 * c-basic-offset: 8
3171 * End:
3172 */