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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau71f95fa2020-01-22 10:34:58 +01003 * Copyright 2000-2020 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>
Tim Duesterhusdfad6a42020-04-18 16:02:47 +020049#include <sys/utsname.h>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010050#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020051#include <time.h>
52#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010053#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010054#ifdef USE_CPU_AFFINITY
Willy Tarreaufc6c0322012-11-16 16:12:27 +010055#include <sched.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000056#if defined(__FreeBSD__) || defined(__DragonFly__)
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020057#include <sys/param.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000058#ifdef __FreeBSD__
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020059#include <sys/cpuset.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000060#endif
David Carlier6d5c8412017-11-29 11:02:32 +000061#include <pthread_np.h>
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020062#endif
David Carlier5e4c8e22019-09-13 05:12:58 +010063#ifdef __APPLE__
64#include <mach/mach_types.h>
65#include <mach/thread_act.h>
66#include <mach/thread_policy.h>
67#endif
Willy Tarreaufc6c0322012-11-16 16:12:27 +010068#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020069
Willy Tarreau636848a2019-04-15 19:38:50 +020070#if defined(USE_PRCTL)
71#include <sys/prctl.h>
72#endif
73
Willy Tarreaubaaee002006-06-26 02:48:02 +020074#ifdef DEBUG_FULL
75#include <assert.h>
76#endif
Tim Duesterhusd6942c82017-11-20 15:58:35 +010077#if defined(USE_SYSTEMD)
78#include <systemd/sd-daemon.h>
79#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020080
Willy Tarreau6c3a6812020-03-06 18:57:15 +010081#include <import/sha1.h>
82
Willy Tarreau2dd0d472006-06-29 17:53:05 +020083#include <common/base64.h>
84#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020085#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020086#include <common/compat.h>
87#include <common/config.h>
88#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010089#include <common/errors.h>
Willy Tarreau5794fb02018-11-25 18:43:29 +010090#include <common/initcall.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020091#include <common/memory.h>
92#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010093#include <common/namespace.h>
Willy Tarreau6c3a6812020-03-06 18:57:15 +010094#include <common/net_helper.h>
Willy Tarreauc125cef2019-05-10 09:58:43 +020095#include <common/openssl-compat.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020096#include <common/regex.h>
97#include <common/standard.h>
98#include <common/time.h>
99#include <common/uri_auth.h>
100#include <common/version.h>
Christopher Fauletbe0faa22017-08-29 15:37:10 +0200101#include <common/hathreads.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200102
103#include <types/capture.h>
William Lallemandce83b4a2018-10-26 14:47:30 +0200104#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200105#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200106#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +0900107#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +0200108#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200109
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200110#include <proto/acl.h>
Willy Tarreau609aad92018-11-22 08:31:09 +0100111#include <proto/activity.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +0200112#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +0200113#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200114#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200115#include <proto/channel.h>
William Lallemandce83b4a2018-10-26 14:47:30 +0200116#include <proto/cli.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200117#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200118#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200119#include <proto/filters.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100120#include <proto/hlua.h>
Willy Tarreau61c112a2018-10-02 16:43:32 +0200121#include <proto/http_rules.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200122#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200123#include <proto/log.h>
William Lallemand48dfbbd2019-04-01 11:29:53 +0200124#include <proto/mworker.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100125#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200126#include <proto/protocol.h>
Christopher Fauletfc9cfe42019-07-16 14:54:53 +0200127#include <proto/http_ana.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200128#include <proto/proxy.h>
129#include <proto/queue.h>
130#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200131#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200132#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200133#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200134#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200135#include <proto/dns.h>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100136#include <proto/vars.h>
Grant Zhang872f9c22017-01-21 01:10:18 +0000137#include <proto/ssl_sock.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200138
Willy Tarreau7b5654f2019-03-29 21:30:17 +0100139/* array of init calls for older platforms */
140DECLARE_INIT_STAGES;
141
Willy Tarreau477ecd82010-01-03 21:12:30 +0100142/* list of config files */
143static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200144int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100145int relative_pid = 1; /* process id starting at 1 */
Willy Tarreau387bd4f2017-11-10 19:08:14 +0100146unsigned long pid_bit = 1; /* bit corresponding to the process id */
Willy Tarreaua38a7172019-02-02 17:11:28 +0100147unsigned long all_proc_mask = 1; /* mask of all processes */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200148
Willy Tarreauf8ea00e2020-03-12 17:24:53 +0100149volatile unsigned long sleeping_thread_mask = 0; /* Threads that are about to sleep in poll() */
Willy Tarreau4b3f27b2020-03-12 17:28:01 +0100150volatile unsigned long stopping_thread_mask = 0; /* Threads acknowledged stopping */
Willy Tarreauf8ea00e2020-03-12 17:24:53 +0100151
Willy Tarreaubaaee002006-06-26 02:48:02 +0200152/* global options */
153struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100154 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100155 .nbproc = 1,
Willy Tarreau149ab772019-01-26 14:27:06 +0100156 .nbthread = 0,
William Lallemand5f232402012-04-05 18:02:55 +0200157 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200158 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100159 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100160 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100161 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200162 .unix_bind = {
163 .ux = {
164 .uid = -1,
165 .gid = -1,
166 .mode = 0,
167 }
168 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200169 .tune = {
Willy Tarreau7ac908b2019-02-27 12:02:18 +0100170 .options = GTUNE_LISTENER_MQ,
Willy Tarreauc77d3642018-12-12 06:19:42 +0100171 .bufsize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Christopher Faulet546c4692020-01-22 14:31:21 +0100172 .maxrewrite = MAXREWRITE,
Willy Tarreauc77d3642018-12-12 06:19:42 +0100173 .chksize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Willy Tarreaua24adf02014-11-27 01:11:56 +0100174 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200175 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Olivier Houchard88698d92019-04-16 19:07:22 +0200176 .pool_low_ratio = 20,
177 .pool_high_ratio = 25,
Christopher Faulet41ba36f2019-07-19 09:36:45 +0200178 .max_http_hdr = MAX_HTTP_HDR,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200179#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100180 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200181#endif
William Lallemandf3747832012-11-09 12:33:10 +0100182 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100183#ifdef DEFAULT_IDLE_TIMER
184 .idle_timer = DEFAULT_IDLE_TIMER,
185#else
186 .idle_timer = 1000, /* 1 second */
187#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200188 },
Emeric Brun76d88952012-10-05 15:47:31 +0200189#ifdef USE_OPENSSL
190#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200191 .maxsslconn = DEFAULT_MAXSSLCONN,
192#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200193#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200194 /* others NULL OK */
195};
196
197/*********************************************************************/
198
199int stopping; /* non zero means stopping in progress */
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100200int killed; /* non zero means a hard-stop is triggered */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200201int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
William Lallemanda7199262018-11-16 16:57:20 +0100202int unstoppable_jobs = 0; /* number of active jobs that can't be stopped during a soft stop */
Willy Tarreau199ad242018-11-05 16:31:22 +0100203int active_peers = 0; /* number of active peers (connection attempts and connected) */
Willy Tarreau2d372c22018-11-05 17:12:27 +0100204int connected_peers = 0; /* number of connected peers (verified ones) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200205
206/* Here we store informations about the pids of the processes we may pause
207 * or kill. We will send them a signal every 10 ms until we can bind to all
208 * our ports. With 200 retries, that's about 2 seconds.
209 */
210#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200211static int *oldpids = NULL;
212static int oldpids_sig; /* use USR1 or TERM */
213
Olivier Houchardf73629d2017-04-05 22:33:04 +0200214/* Path to the unix socket we use to retrieve listener sockets from the old process */
215static const char *old_unixsocket;
216
William Lallemand85b0bd92017-06-01 17:38:53 +0200217static char *cur_unixsocket = NULL;
218
William Lallemandcb11fd22017-06-01 17:38:52 +0200219int atexit_flag = 0;
220
Willy Tarreaubb545b42010-08-25 12:58:59 +0200221int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200222const int zero = 0;
223const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200224const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200225
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100226char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200227char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200228
William Lallemand73b85e72017-06-01 17:38:51 +0200229static char **next_argv = NULL;
230
William Lallemandbc193052018-09-11 10:06:26 +0200231struct list proc_list = LIST_HEAD_INIT(proc_list);
232
233int master = 0; /* 1 if in master, 0 if in child */
Willy Tarreaubf696402019-03-01 10:09:28 +0100234unsigned int rlim_fd_cur_at_boot = 0;
235unsigned int rlim_fd_max_at_boot = 0;
William Lallemandbc193052018-09-11 10:06:26 +0200236
Willy Tarreau6c3a6812020-03-06 18:57:15 +0100237/* per-boot randomness */
238unsigned char boot_seed[20]; /* per-boot random seed (160 bits initially) */
239
William Lallemand16dd1b32018-11-19 18:46:18 +0100240struct mworker_proc *proc_self = NULL;
William Lallemandbc193052018-09-11 10:06:26 +0200241
William Lallemandb3f2be32018-09-11 10:06:18 +0200242static void *run_thread_poll_loop(void *data);
243
Willy Tarreauff055502014-04-28 22:27:06 +0200244/* bitfield of a few warnings to emit just once (WARN_*) */
245unsigned int warned = 0;
246
William Lallemande7361152018-10-26 14:47:36 +0200247/* master CLI configuration (-S flag) */
248struct list mworker_cli_conf = LIST_HEAD_INIT(mworker_cli_conf);
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100249
250/* These are strings to be reported in the output of "haproxy -vv". They may
251 * either be constants (in which case must_free must be zero) or dynamically
252 * allocated strings to pass to free() on exit, and in this case must_free
253 * must be non-zero.
254 */
255struct list build_opts_list = LIST_HEAD_INIT(build_opts_list);
256struct build_opts_str {
257 struct list list;
258 const char *str;
259 int must_free;
260};
261
Willy Tarreaue6945732016-12-21 19:57:00 +0100262/* These functions are called just after the point where the program exits
263 * after a config validity check, so they are generally suited for resource
264 * allocation and slow initializations that should be skipped during basic
265 * config checks. The functions must return 0 on success, or a combination
266 * of ERR_* flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause
267 * and immediate exit, so the function must have emitted any useful error.
268 */
269struct list post_check_list = LIST_HEAD_INIT(post_check_list);
270struct post_check_fct {
271 struct list list;
272 int (*fct)();
273};
274
Christopher Fauletc1692962019-08-12 09:51:07 +0200275/* These functions are called for each proxy just after the config validity
276 * check. The functions must return 0 on success, or a combination of ERR_*
277 * flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause and immediate
278 * exit, so the function must have emitted any useful error.
279 */
280struct list post_proxy_check_list = LIST_HEAD_INIT(post_proxy_check_list);
281struct post_proxy_check_fct {
282 struct list list;
283 int (*fct)(struct proxy *);
284};
285
286/* These functions are called for each server just after the config validity
287 * check. The functions must return 0 on success, or a combination of ERR_*
288 * flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause and immediate
289 * exit, so the function must have emitted any useful error.
290 */
291struct list post_server_check_list = LIST_HEAD_INIT(post_server_check_list);
292struct post_server_check_fct {
293 struct list list;
294 int (*fct)(struct server *);
295};
296
Willy Tarreau082b6282019-05-22 14:42:12 +0200297/* These functions are called for each thread just after the thread creation
298 * and before running the init functions. They should be used to do per-thread
299 * (re-)allocations that are needed by subsequent functoins. They must return 0
300 * if an error occurred. */
301struct list per_thread_alloc_list = LIST_HEAD_INIT(per_thread_alloc_list);
302struct per_thread_alloc_fct {
Willy Tarreau05554e62016-12-21 20:46:26 +0100303 struct list list;
Willy Tarreau082b6282019-05-22 14:42:12 +0200304 int (*fct)();
Willy Tarreau05554e62016-12-21 20:46:26 +0100305};
306
Christopher Faulet415f6112017-07-25 16:52:58 +0200307/* These functions are called for each thread just after the thread creation
308 * and before running the scheduler. They should be used to do per-thread
309 * initializations. They must return 0 if an error occurred. */
310struct list per_thread_init_list = LIST_HEAD_INIT(per_thread_init_list);
311struct per_thread_init_fct {
312 struct list list;
313 int (*fct)();
314};
315
Willy Tarreau082b6282019-05-22 14:42:12 +0200316/* These functions are called when freeing the global sections at the end of
317 * deinit, after everything is stopped. They don't return anything. They should
318 * not release shared resources that are possibly used by other deinit
319 * functions, only close/release what is private. Use the per_thread_free_list
320 * to release shared resources.
321 */
322struct list post_deinit_list = LIST_HEAD_INIT(post_deinit_list);
323struct post_deinit_fct {
324 struct list list;
325 void (*fct)();
326};
327
Christopher Faulet3ea5cbe2019-07-31 08:44:12 +0200328/* These functions are called when freeing a proxy during the deinit, after
329 * everything isg stopped. They don't return anything. They should not release
330 * the proxy itself or any shared resources that are possibly used by other
331 * deinit functions, only close/release what is private.
332 */
333struct list proxy_deinit_list = LIST_HEAD_INIT(proxy_deinit_list);
334struct proxy_deinit_fct {
335 struct list list;
336 void (*fct)(struct proxy *);
337};
338
339/* These functions are called when freeing a server during the deinit, after
340 * everything isg stopped. They don't return anything. They should not release
341 * the proxy itself or any shared resources that are possibly used by other
342 * deinit functions, only close/release what is private.
343 */
344struct list server_deinit_list = LIST_HEAD_INIT(server_deinit_list);
345struct server_deinit_fct {
346 struct list list;
347 void (*fct)(struct server *);
348};
349
Willy Tarreau082b6282019-05-22 14:42:12 +0200350/* These functions are called when freeing the global sections at the end of
351 * deinit, after the thread deinit functions, to release unneeded memory
352 * allocations. They don't return anything, and they work in best effort mode
353 * as their sole goal is to make valgrind mostly happy.
354 */
355struct list per_thread_free_list = LIST_HEAD_INIT(per_thread_free_list);
356struct per_thread_free_fct {
357 struct list list;
358 int (*fct)();
359};
360
Christopher Faulet415f6112017-07-25 16:52:58 +0200361/* These functions are called for each thread just after the scheduler loop and
362 * before exiting the thread. They don't return anything and, as for post-deinit
363 * functions, they work in best effort mode as their sole goal is to make
364 * valgrind mostly happy. */
365struct list per_thread_deinit_list = LIST_HEAD_INIT(per_thread_deinit_list);
366struct per_thread_deinit_fct {
367 struct list list;
368 void (*fct)();
369};
370
Willy Tarreaubaaee002006-06-26 02:48:02 +0200371/*********************************************************************/
372/* general purpose functions ***************************************/
373/*********************************************************************/
374
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100375/* used to register some build option strings at boot. Set must_free to
376 * non-zero if the string must be freed upon exit.
377 */
378void hap_register_build_opts(const char *str, int must_free)
379{
380 struct build_opts_str *b;
381
382 b = calloc(1, sizeof(*b));
383 if (!b) {
384 fprintf(stderr, "out of memory\n");
385 exit(1);
386 }
387 b->str = str;
388 b->must_free = must_free;
389 LIST_ADDQ(&build_opts_list, &b->list);
390}
391
Willy Tarreaue6945732016-12-21 19:57:00 +0100392/* used to register some initialization functions to call after the checks. */
393void hap_register_post_check(int (*fct)())
394{
395 struct post_check_fct *b;
396
397 b = calloc(1, sizeof(*b));
398 if (!b) {
399 fprintf(stderr, "out of memory\n");
400 exit(1);
401 }
402 b->fct = fct;
403 LIST_ADDQ(&post_check_list, &b->list);
404}
405
Christopher Fauletc1692962019-08-12 09:51:07 +0200406/* used to register some initialization functions to call for each proxy after
407 * the checks.
408 */
409void hap_register_post_proxy_check(int (*fct)(struct proxy *))
410{
411 struct post_proxy_check_fct *b;
412
413 b = calloc(1, sizeof(*b));
414 if (!b) {
415 fprintf(stderr, "out of memory\n");
416 exit(1);
417 }
418 b->fct = fct;
419 LIST_ADDQ(&post_proxy_check_list, &b->list);
420}
421
422/* used to register some initialization functions to call for each server after
423 * the checks.
424 */
425void hap_register_post_server_check(int (*fct)(struct server *))
426{
427 struct post_server_check_fct *b;
428
429 b = calloc(1, sizeof(*b));
430 if (!b) {
431 fprintf(stderr, "out of memory\n");
432 exit(1);
433 }
434 b->fct = fct;
435 LIST_ADDQ(&post_server_check_list, &b->list);
436}
437
Willy Tarreau05554e62016-12-21 20:46:26 +0100438/* used to register some de-initialization functions to call after everything
439 * has stopped.
440 */
441void hap_register_post_deinit(void (*fct)())
442{
443 struct post_deinit_fct *b;
444
445 b = calloc(1, sizeof(*b));
446 if (!b) {
447 fprintf(stderr, "out of memory\n");
448 exit(1);
449 }
450 b->fct = fct;
451 LIST_ADDQ(&post_deinit_list, &b->list);
452}
453
Christopher Faulet3ea5cbe2019-07-31 08:44:12 +0200454/* used to register some per proxy de-initialization functions to call after
455 * everything has stopped.
456 */
457void hap_register_proxy_deinit(void (*fct)(struct proxy *))
458{
459 struct proxy_deinit_fct *b;
460
461 b = calloc(1, sizeof(*b));
462 if (!b) {
463 fprintf(stderr, "out of memory\n");
464 exit(1);
465 }
466 b->fct = fct;
467 LIST_ADDQ(&proxy_deinit_list, &b->list);
468}
469
470
471/* used to register some per server de-initialization functions to call after
472 * everything has stopped.
473 */
474void hap_register_server_deinit(void (*fct)(struct server *))
475{
476 struct server_deinit_fct *b;
477
478 b = calloc(1, sizeof(*b));
479 if (!b) {
480 fprintf(stderr, "out of memory\n");
481 exit(1);
482 }
483 b->fct = fct;
484 LIST_ADDQ(&server_deinit_list, &b->list);
485}
486
Willy Tarreau082b6282019-05-22 14:42:12 +0200487/* used to register some allocation functions to call for each thread. */
488void hap_register_per_thread_alloc(int (*fct)())
489{
490 struct per_thread_alloc_fct *b;
491
492 b = calloc(1, sizeof(*b));
493 if (!b) {
494 fprintf(stderr, "out of memory\n");
495 exit(1);
496 }
497 b->fct = fct;
498 LIST_ADDQ(&per_thread_alloc_list, &b->list);
499}
500
Christopher Faulet415f6112017-07-25 16:52:58 +0200501/* used to register some initialization functions to call for each thread. */
502void hap_register_per_thread_init(int (*fct)())
503{
504 struct per_thread_init_fct *b;
505
506 b = calloc(1, sizeof(*b));
507 if (!b) {
508 fprintf(stderr, "out of memory\n");
509 exit(1);
510 }
511 b->fct = fct;
512 LIST_ADDQ(&per_thread_init_list, &b->list);
513}
514
515/* used to register some de-initialization functions to call for each thread. */
516void hap_register_per_thread_deinit(void (*fct)())
517{
518 struct per_thread_deinit_fct *b;
519
520 b = calloc(1, sizeof(*b));
521 if (!b) {
522 fprintf(stderr, "out of memory\n");
523 exit(1);
524 }
525 b->fct = fct;
526 LIST_ADDQ(&per_thread_deinit_list, &b->list);
527}
528
Willy Tarreau082b6282019-05-22 14:42:12 +0200529/* used to register some free functions to call for each thread. */
530void hap_register_per_thread_free(int (*fct)())
531{
532 struct per_thread_free_fct *b;
533
534 b = calloc(1, sizeof(*b));
535 if (!b) {
536 fprintf(stderr, "out of memory\n");
537 exit(1);
538 }
539 b->fct = fct;
540 LIST_ADDQ(&per_thread_free_list, &b->list);
541}
542
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100543static void display_version()
Willy Tarreaubaaee002006-06-26 02:48:02 +0200544{
Tim Duesterhusdfad6a42020-04-18 16:02:47 +0200545 struct utsname utsname;
546
Willy Tarreau08dd2022019-11-21 18:07:30 +0100547 printf("HA-Proxy version %s %s - https://haproxy.org/\n"
548 PRODUCT_STATUS "\n", haproxy_version, haproxy_date);
Willy Tarreau47479eb2019-11-21 18:48:20 +0100549
550 if (strlen(PRODUCT_URL_BUGS) > 0) {
551 char base_version[20];
552 int dots = 0;
553 char *del;
554
555 /* only retrieve the base version without distro-specific extensions */
556 for (del = haproxy_version; *del; del++) {
557 if (*del == '.')
558 dots++;
559 else if (*del < '0' || *del > '9')
560 break;
561 }
562
563 strlcpy2(base_version, haproxy_version, del - haproxy_version + 1);
564 if (dots < 2)
565 printf("Known bugs: https://github.com/haproxy/haproxy/issues?q=is:issue+is:open\n");
566 else
567 printf("Known bugs: " PRODUCT_URL_BUGS "\n", base_version);
568 }
Tim Duesterhusdfad6a42020-04-18 16:02:47 +0200569
570 if (uname(&utsname) == 0) {
571 printf("Running on: %s %s %s %s\n", utsname.sysname, utsname.release, utsname.version, utsname.machine);
572 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200573}
574
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100575static void display_build_opts()
Willy Tarreau7b066db2007-12-02 11:28:59 +0100576{
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100577 struct build_opts_str *item;
578
Willy Tarreau7b066db2007-12-02 11:28:59 +0100579 printf("Build options :"
580#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100581 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100582#endif
583#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100584 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100585#endif
586#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100587 "\n CC = " BUILD_CC
588#endif
589#ifdef BUILD_CFLAGS
590 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100591#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100592#ifdef BUILD_OPTIONS
593 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100594#endif
Willy Tarreau7728ed32019-03-27 13:20:08 +0100595#ifdef BUILD_FEATURES
596 "\n\nFeature list : " BUILD_FEATURES
597#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200598 "\n\nDefault settings :"
Willy Tarreauca783d42019-03-13 10:03:07 +0100599 "\n bufsize = %d, maxrewrite = %d, maxpollevents = %d"
Willy Tarreau27a674e2009-08-17 07:23:33 +0200600 "\n\n",
Willy Tarreauca783d42019-03-13 10:03:07 +0100601 BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200602
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100603 list_for_each_entry(item, &build_opts_list, list) {
604 puts(item->str);
605 }
606
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100607 putchar('\n');
608
Willy Tarreaube5b6852009-10-03 18:57:08 +0200609 list_pollers(stdout);
610 putchar('\n');
Christopher Faulet98d9fe22018-04-10 14:37:32 +0200611 list_mux_proto(stdout);
612 putchar('\n');
Willy Tarreau679bba12019-03-19 08:08:10 +0100613 list_services(stdout);
614 putchar('\n');
Christopher Fauletb3f4e142016-03-07 12:46:38 +0100615 list_filters(stdout);
616 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100617}
618
Willy Tarreaubaaee002006-06-26 02:48:02 +0200619/*
620 * This function prints the command line usage and exits
621 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100622static void usage(char *name)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200623{
624 display_version();
625 fprintf(stderr,
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200626 "Usage : %s [-f <cfgfile|cfgdir>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200627 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200628 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100629 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200630 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200631 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200632 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200633 " -D goes daemon ; -C changes to <dir> before loading files.\n"
William Lallemand095ba4c2017-06-01 17:38:50 +0200634 " -W master-worker mode.\n"
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100635#if defined(USE_SYSTEMD)
636 " -Ws master-worker mode with systemd notify support.\n"
637#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200638 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200639 " -c check mode : only check config files and exit\n"
Willy Tarreauca783d42019-03-13 10:03:07 +0100640 " -n sets the maximum total # of connections (uses ulimit -n)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200641 " -m limits the usable amount of memory (in MB)\n"
642 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200643 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200644 " -p writes pids of all children to this file\n"
Willy Tarreaue5733232019-05-22 19:24:06 +0200645#if defined(USE_EPOLL)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200646 " -de disables epoll() usage even when available\n"
647#endif
Willy Tarreaue5733232019-05-22 19:24:06 +0200648#if defined(USE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200649 " -dk disables kqueue() usage even when available\n"
650#endif
Willy Tarreaue5733232019-05-22 19:24:06 +0200651#if defined(USE_EVPORTS)
Emmanuel Hocdet0ba4f482019-04-08 16:53:32 +0000652 " -dv disables event ports usage even when available\n"
653#endif
Willy Tarreaue5733232019-05-22 19:24:06 +0200654#if defined(USE_POLL)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200655 " -dp disables poll() usage even when available\n"
656#endif
Willy Tarreaue5733232019-05-22 19:24:06 +0200657#if defined(USE_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100658 " -dS disables splice usage (broken on old kernels)\n"
659#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200660#if defined(USE_GETADDRINFO)
661 " -dG disables getaddrinfo() usage\n"
662#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000663#if defined(SO_REUSEPORT)
664 " -dR disables SO_REUSEPORT usage\n"
665#endif
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100666 " -dr ignores server address resolution failures\n"
Emeric Brun850efd52014-01-29 12:24:34 +0100667 " -dV disables SSL verify on servers side\n"
Willy Tarreau3eb10b82020-04-15 16:42:39 +0200668 " -dW fails if any warning is emitted\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200669 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Olivier Houchardf73629d2017-04-05 22:33:04 +0200670 " -x <unix_socket> get listening sockets from a unix socket\n"
William Lallemand63329e32019-06-13 17:03:37 +0200671 " -S <bind>[,<bind options>...] new master CLI\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200672 "\n",
Willy Tarreauca783d42019-03-13 10:03:07 +0100673 name, cfg_maxpconn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200674 exit(1);
675}
676
677
678
679/*********************************************************************/
680/* more specific functions ***************************************/
681/*********************************************************************/
682
William Lallemand73b85e72017-06-01 17:38:51 +0200683/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
684 * pids the signal was correctly delivered to.
685 */
William Lallemande25473c2019-04-01 11:29:56 +0200686int tell_old_pids(int sig)
William Lallemand73b85e72017-06-01 17:38:51 +0200687{
688 int p;
689 int ret = 0;
690 for (p = 0; p < nb_oldpids; p++)
691 if (kill(oldpids[p], sig) == 0)
692 ret++;
693 return ret;
694}
695
William Lallemand75ea0a02017-11-15 19:02:58 +0100696/*
William Lallemand73b85e72017-06-01 17:38:51 +0200697 * remove a pid forom the olpid array and decrease nb_oldpids
698 * return 1 pid was found otherwise return 0
699 */
700
701int delete_oldpid(int pid)
702{
703 int i;
704
705 for (i = 0; i < nb_oldpids; i++) {
706 if (oldpids[i] == pid) {
707 oldpids[i] = oldpids[nb_oldpids - 1];
708 oldpids[nb_oldpids - 1] = 0;
709 nb_oldpids--;
710 return 1;
711 }
712 }
713 return 0;
714}
715
William Lallemand85b0bd92017-06-01 17:38:53 +0200716
717static void get_cur_unixsocket()
718{
719 /* if -x was used, try to update the stat socket if not available anymore */
720 if (global.stats_fe) {
721 struct bind_conf *bind_conf;
722
723 /* pass through all stats socket */
724 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
725 struct listener *l;
726
727 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
728
729 if (l->addr.ss_family == AF_UNIX &&
730 (bind_conf->level & ACCESS_FD_LISTENERS)) {
731 const struct sockaddr_un *un;
732
733 un = (struct sockaddr_un *)&l->addr;
734 /* priority to old_unixsocket */
735 if (!cur_unixsocket) {
736 cur_unixsocket = strdup(un->sun_path);
737 } else {
738 if (old_unixsocket && !strcmp(un->sun_path, old_unixsocket)) {
739 free(cur_unixsocket);
740 cur_unixsocket = strdup(old_unixsocket);
741 return;
742 }
743 }
744 }
745 }
746 }
747 }
748 if (!cur_unixsocket && old_unixsocket)
749 cur_unixsocket = strdup(old_unixsocket);
750}
751
William Lallemand73b85e72017-06-01 17:38:51 +0200752/*
753 * When called, this function reexec haproxy with -sf followed by current
Joseph Herlant03420902018-11-15 10:41:50 -0800754 * children PIDs and possibly old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200755 */
William Lallemanda57b7e32018-12-14 21:11:31 +0100756void mworker_reload()
William Lallemand73b85e72017-06-01 17:38:51 +0200757{
758 int next_argc = 0;
William Lallemand73b85e72017-06-01 17:38:51 +0200759 char *msg = NULL;
Willy Tarreau8dca1952019-03-01 10:21:55 +0100760 struct rlimit limit;
William Lallemand7c756a82018-11-26 11:53:40 +0100761 struct per_thread_deinit_fct *ptdf;
William Lallemand73b85e72017-06-01 17:38:51 +0200762
763 mworker_block_signals();
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100764#if defined(USE_SYSTEMD)
765 if (global.tune.options & GTUNE_USE_SYSTEMD)
766 sd_notify(0, "RELOADING=1");
767#endif
William Lallemand73b85e72017-06-01 17:38:51 +0200768 setenv("HAPROXY_MWORKER_REEXEC", "1", 1);
769
William Lallemandbc193052018-09-11 10:06:26 +0200770 mworker_proc_list_to_env(); /* put the children description in the env */
771
William Lallemand7c756a82018-11-26 11:53:40 +0100772 /* during the reload we must ensure that every FDs that can't be
773 * reuse (ie those that are not referenced in the proc_list)
774 * are closed or they will leak. */
775
776 /* close the listeners FD */
777 mworker_cli_proxy_stop();
William Lallemand16866672019-06-24 17:40:48 +0200778
779 if (getenv("HAPROXY_MWORKER_WAIT_ONLY") == NULL) {
780 /* close the poller FD and the thread waker pipe FD */
781 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
782 ptdf->fct();
783 if (fdtab)
784 deinit_pollers();
785 }
Willy Tarreau5db847a2019-05-09 14:13:35 +0200786#if defined(USE_OPENSSL) && (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L)
William Lallemand5fdb5b32019-10-15 14:04:08 +0200787 /* close random device FDs */
788 RAND_keep_random_devices_open(0);
Rob Allen56996da2019-05-03 09:11:32 +0100789#endif
William Lallemand7c756a82018-11-26 11:53:40 +0100790
Willy Tarreau8dca1952019-03-01 10:21:55 +0100791 /* restore the initial FD limits */
792 limit.rlim_cur = rlim_fd_cur_at_boot;
793 limit.rlim_max = rlim_fd_max_at_boot;
794 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
795 getrlimit(RLIMIT_NOFILE, &limit);
796 ha_warning("Failed to restore initial FD limits (cur=%u max=%u), using cur=%u max=%u\n",
797 rlim_fd_cur_at_boot, rlim_fd_max_at_boot,
798 (unsigned int)limit.rlim_cur, (unsigned int)limit.rlim_max);
799 }
800
William Lallemand73b85e72017-06-01 17:38:51 +0200801 /* compute length */
802 while (next_argv[next_argc])
803 next_argc++;
804
William Lallemand85b0bd92017-06-01 17:38:53 +0200805 /* 1 for haproxy -sf, 2 for -x /socket */
William Lallemand3f128872019-04-01 11:29:59 +0200806 next_argv = realloc(next_argv, (next_argc + 1 + 2 + mworker_child_nb() + nb_oldpids + 1) * sizeof(char *));
William Lallemand73b85e72017-06-01 17:38:51 +0200807 if (next_argv == NULL)
808 goto alloc_error;
809
William Lallemand73b85e72017-06-01 17:38:51 +0200810 /* add -sf <PID>* to argv */
William Lallemand3f128872019-04-01 11:29:59 +0200811 if (mworker_child_nb() > 0) {
812 struct mworker_proc *child;
813
William Lallemand73b85e72017-06-01 17:38:51 +0200814 next_argv[next_argc++] = "-sf";
William Lallemand3f128872019-04-01 11:29:59 +0200815
816 list_for_each_entry(child, &proc_list, list) {
William Lallemand677e2f22019-11-19 17:04:18 +0100817 if (!(child->options & (PROC_O_TYPE_WORKER|PROC_O_TYPE_PROG)) || child->pid <= -1 )
William Lallemand3f128872019-04-01 11:29:59 +0200818 continue;
819 next_argv[next_argc] = memprintf(&msg, "%d", child->pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200820 if (next_argv[next_argc] == NULL)
821 goto alloc_error;
822 msg = NULL;
William Lallemand3f128872019-04-01 11:29:59 +0200823 next_argc++;
William Lallemand73b85e72017-06-01 17:38:51 +0200824 }
825 }
William Lallemand3f128872019-04-01 11:29:59 +0200826
William Lallemand73b85e72017-06-01 17:38:51 +0200827 next_argv[next_argc] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200828
William Lallemand2bf6d622017-06-20 11:20:23 +0200829 /* add the -x option with the stat socket */
William Lallemand85b0bd92017-06-01 17:38:53 +0200830 if (cur_unixsocket) {
831
William Lallemand2bf6d622017-06-20 11:20:23 +0200832 next_argv[next_argc++] = "-x";
833 next_argv[next_argc++] = (char *)cur_unixsocket;
834 next_argv[next_argc++] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200835 }
836
Christopher Faulet767a84b2017-11-24 16:50:31 +0100837 ha_warning("Reexecuting Master process\n");
Willy Tarreaue0d86e22019-08-26 10:37:39 +0200838 signal(SIGPROF, SIG_IGN);
Tim Duesterhus0436ab72017-11-12 17:39:18 +0100839 execvp(next_argv[0], next_argv);
William Lallemand73b85e72017-06-01 17:38:51 +0200840
Christopher Faulet767a84b2017-11-24 16:50:31 +0100841 ha_warning("Failed to reexecute the master process [%d]: %s\n", pid, strerror(errno));
William Lallemand722d4ca2017-11-15 19:02:55 +0100842 return;
843
William Lallemand73b85e72017-06-01 17:38:51 +0200844alloc_error:
Joseph Herlant07a08342018-11-15 10:43:05 -0800845 ha_warning("Failed to reexecute the master process [%d]: Cannot allocate memory\n", pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200846 return;
847}
848
William Lallemandb3f2be32018-09-11 10:06:18 +0200849static void mworker_loop()
850{
851
852#if defined(USE_SYSTEMD)
853 if (global.tune.options & GTUNE_USE_SYSTEMD)
854 sd_notifyf(0, "READY=1\nMAINPID=%lu", (unsigned long)getpid());
855#endif
Willy Tarreaud83b6c12019-04-18 11:31:36 +0200856 /* Busy polling makes no sense in the master :-) */
857 global.tune.options &= ~GTUNE_BUSY_POLLING;
William Lallemandb3f2be32018-09-11 10:06:18 +0200858
William Lallemandbc193052018-09-11 10:06:26 +0200859 master = 1;
860
Willy Tarreaud26c9f92019-12-11 14:24:07 +0100861 signal_unregister(SIGTTIN);
862 signal_unregister(SIGTTOU);
William Lallemand0564d412018-11-20 17:36:53 +0100863 signal_unregister(SIGUSR1);
864 signal_unregister(SIGHUP);
865 signal_unregister(SIGQUIT);
866
William Lallemandb3f2be32018-09-11 10:06:18 +0200867 signal_register_fct(SIGTERM, mworker_catch_sigterm, SIGTERM);
868 signal_register_fct(SIGUSR1, mworker_catch_sigterm, SIGUSR1);
Willy Tarreaud26c9f92019-12-11 14:24:07 +0100869 signal_register_fct(SIGTTIN, mworker_broadcast_signal, SIGTTIN);
870 signal_register_fct(SIGTTOU, mworker_broadcast_signal, SIGTTOU);
William Lallemandb3f2be32018-09-11 10:06:18 +0200871 signal_register_fct(SIGINT, mworker_catch_sigterm, SIGINT);
872 signal_register_fct(SIGHUP, mworker_catch_sighup, SIGHUP);
873 signal_register_fct(SIGUSR2, mworker_catch_sighup, SIGUSR2);
874 signal_register_fct(SIGCHLD, mworker_catch_sigchld, SIGCHLD);
875
876 mworker_unblock_signals();
877 mworker_cleanlisteners();
William Lallemand27f3fa52018-12-06 14:05:20 +0100878 mworker_cleantasks();
William Lallemandb3f2be32018-09-11 10:06:18 +0200879
William Lallemandbc193052018-09-11 10:06:26 +0200880 mworker_catch_sigchld(NULL); /* ensure we clean the children in case
881 some SIGCHLD were lost */
882
William Lallemandb3f2be32018-09-11 10:06:18 +0200883 global.nbthread = 1;
884 relative_pid = 1;
885 pid_bit = 1;
Willy Tarreaua38a7172019-02-02 17:11:28 +0100886 all_proc_mask = 1;
William Lallemandb3f2be32018-09-11 10:06:18 +0200887
William Lallemand2672eb92018-12-14 15:52:39 +0100888#ifdef USE_THREAD
889 tid_bit = 1;
890 all_threads_mask = 1;
891#endif
892
William Lallemandb3f2be32018-09-11 10:06:18 +0200893 jobs++; /* this is the "master" job, we want to take care of the
894 signals even if there is no listener so the poll loop don't
895 leave */
896
897 fork_poller();
Willy Tarreaub4f7cc32019-05-03 09:27:30 +0200898 run_thread_poll_loop(0);
William Lallemandb3f2be32018-09-11 10:06:18 +0200899}
William Lallemandcb11fd22017-06-01 17:38:52 +0200900
901/*
902 * Reexec the process in failure mode, instead of exiting
903 */
904void reexec_on_failure()
905{
906 if (!atexit_flag)
907 return;
908
909 setenv("HAPROXY_MWORKER_WAIT_ONLY", "1", 1);
910
Christopher Faulet767a84b2017-11-24 16:50:31 +0100911 ha_warning("Reexecuting Master process in waitpid mode\n");
William Lallemandcb11fd22017-06-01 17:38:52 +0200912 mworker_reload();
William Lallemandcb11fd22017-06-01 17:38:52 +0200913}
William Lallemand73b85e72017-06-01 17:38:51 +0200914
915
916/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200917 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
918 * a signal zero to all subscribers. This means that it's as easy as
919 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200920 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100921static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200922{
923 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200924 signal_unregister_handler(sh);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100925 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200926}
927
928/*
929 * upon SIGTTOU, we pause everything
930 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100931static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200932{
933 pause_proxies();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100934 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200935}
936
937/*
938 * upon SIGTTIN, let's have a soft stop.
939 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100940static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200941{
Willy Tarreaube58c382011-07-24 18:28:10 +0200942 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200943}
944
945/*
946 * this function dumps every server's state when the process receives SIGHUP.
947 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100948static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200949{
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100950 struct proxy *p = proxies_list;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200951
Christopher Faulet767a84b2017-11-24 16:50:31 +0100952 ha_warning("SIGHUP received, dumping servers states.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200953 while (p) {
954 struct server *s = p->srv;
955
956 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
957 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100958 chunk_printf(&trash,
959 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
960 p->id, s->id,
Emeric Brun52a91d32017-08-31 14:41:55 +0200961 (s->cur_state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100962 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200963 ha_warning("%s\n", trash.area);
964 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200965 s = s->next;
966 }
967
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200968 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
969 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100970 chunk_printf(&trash,
971 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
972 p->id,
973 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 +0200974 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100975 chunk_printf(&trash,
976 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
977 p->id,
978 (p->srv_bck) ? "is running on backup servers" : "has no server available",
979 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 +0200980 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100981 chunk_printf(&trash,
982 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
983 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
984 p->id, p->srv_act, p->srv_bck,
985 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 +0200986 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200987 ha_warning("%s\n", trash.area);
988 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200989
990 p = p->next;
991 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200992}
993
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100994static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200995{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200996 /* dump memory usage then free everything possible */
997 dump_pools();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100998 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200999}
1000
William Lallemande1340412017-12-28 16:09:36 +01001001/*
1002 * This function dup2 the stdio FDs (0,1,2) with <fd>, then closes <fd>
1003 * If <fd> < 0, it opens /dev/null and use it to dup
1004 *
1005 * In the case of chrooting, you have to open /dev/null before the chroot, and
1006 * pass the <fd> to this function
1007 */
1008static void stdio_quiet(int fd)
1009{
1010 if (fd < 0)
1011 fd = open("/dev/null", O_RDWR, 0);
1012
1013 if (fd > -1) {
1014 fclose(stdin);
1015 fclose(stdout);
1016 fclose(stderr);
1017
1018 dup2(fd, 0);
1019 dup2(fd, 1);
1020 dup2(fd, 2);
1021 if (fd > 2)
1022 close(fd);
1023 return;
1024 }
1025
1026 ha_alert("Cannot open /dev/null\n");
1027 exit(EXIT_FAILURE);
1028}
1029
1030
Joseph Herlant03420902018-11-15 10:41:50 -08001031/* This function checks if cfg_cfgfiles contains directories.
1032 * If it finds one, it adds all the files (and only files) it contains
1033 * in cfg_cfgfiles in place of the directory (and removes the directory).
1034 * It adds the files in lexical order.
1035 * It adds only files with .cfg extension.
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001036 * It doesn't add files with name starting with '.'
1037 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001038static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001039{
1040 struct wordlist *wl, *wlb;
1041 char *err = NULL;
1042
1043 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1044 struct stat file_stat;
1045 struct dirent **dir_entries = NULL;
1046 int dir_entries_nb;
1047 int dir_entries_it;
1048
1049 if (stat(wl->s, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001050 ha_alert("Cannot open configuration file/directory %s : %s\n",
1051 wl->s,
1052 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001053 exit(1);
1054 }
1055
1056 if (!S_ISDIR(file_stat.st_mode))
1057 continue;
1058
1059 /* from this point wl->s is a directory */
1060
1061 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
1062 if (dir_entries_nb < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001063 ha_alert("Cannot open configuration directory %s : %s\n",
1064 wl->s,
1065 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001066 exit(1);
1067 }
1068
1069 /* for each element in the directory wl->s */
1070 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
1071 struct dirent *dir_entry = dir_entries[dir_entries_it];
1072 char *filename = NULL;
1073 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
1074
1075 /* don't add filename that begin with .
Joseph Herlant03420902018-11-15 10:41:50 -08001076 * only add filename with .cfg extension
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001077 */
1078 if (dir_entry->d_name[0] == '.' ||
1079 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
1080 goto next_dir_entry;
1081
1082 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001083 ha_alert("Cannot load configuration files %s : out of memory.\n",
1084 filename);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001085 exit(1);
1086 }
1087
1088 if (stat(filename, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001089 ha_alert("Cannot open configuration file %s : %s\n",
1090 wl->s,
1091 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001092 exit(1);
1093 }
1094
1095 /* don't add anything else than regular file in cfg_cfgfiles
1096 * this way we avoid loops
1097 */
1098 if (!S_ISREG(file_stat.st_mode))
1099 goto next_dir_entry;
1100
1101 if (!list_append_word(&wl->list, filename, &err)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001102 ha_alert("Cannot load configuration files %s : %s\n",
1103 filename,
1104 err);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001105 exit(1);
1106 }
1107
1108next_dir_entry:
1109 free(filename);
1110 free(dir_entry);
1111 }
1112
1113 free(dir_entries);
1114
1115 /* remove the current directory (wl) from cfg_cfgfiles */
1116 free(wl->s);
1117 LIST_DEL(&wl->list);
1118 free(wl);
1119 }
1120
1121 free(err);
1122}
1123
Olivier Houchardf73629d2017-04-05 22:33:04 +02001124static int get_old_sockets(const char *unixsocket)
1125{
1126 char *cmsgbuf = NULL, *tmpbuf = NULL;
1127 int *tmpfd = NULL;
1128 struct sockaddr_un addr;
1129 struct cmsghdr *cmsg;
1130 struct msghdr msghdr;
1131 struct iovec iov;
1132 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +02001133 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +02001134 int sock = -1;
1135 int ret = -1;
1136 int ret2 = -1;
1137 int fd_nb;
1138 int got_fd = 0;
1139 int i = 0;
1140 size_t maxoff = 0, curoff = 0;
1141
1142 memset(&msghdr, 0, sizeof(msghdr));
1143 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
1144 if (!cmsgbuf) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001145 ha_warning("Failed to allocate memory to send sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001146 goto out;
1147 }
1148 sock = socket(PF_UNIX, SOCK_STREAM, 0);
1149 if (sock < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001150 ha_warning("Failed to connect to the old process socket '%s'\n",
1151 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001152 goto out;
1153 }
Willy Tarreau719e07c2019-12-11 16:29:10 +01001154 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path) - 1);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001155 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
1156 addr.sun_family = PF_UNIX;
1157 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
1158 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001159 ha_warning("Failed to connect to the old process socket '%s'\n",
1160 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001161 goto out;
1162 }
Olivier Houchard54740872017-04-06 14:45:14 +02001163 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001164 iov.iov_base = &fd_nb;
1165 iov.iov_len = sizeof(fd_nb);
1166 msghdr.msg_iov = &iov;
1167 msghdr.msg_iovlen = 1;
1168 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
1169 /* First, get the number of file descriptors to be received */
1170 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001171 ha_warning("Failed to get the number of sockets to be transferred !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001172 goto out;
1173 }
1174 if (fd_nb == 0) {
1175 ret = 0;
1176 goto out;
1177 }
Olivier Houchardf143b802017-11-04 15:13:01 +01001178 tmpbuf = malloc(fd_nb * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int)));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001179 if (tmpbuf == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001180 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001181 goto out;
1182 }
1183 tmpfd = malloc(fd_nb * sizeof(int));
1184 if (tmpfd == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001185 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001186 goto out;
1187 }
1188 msghdr.msg_control = cmsgbuf;
1189 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
Olivier Houchardf143b802017-11-04 15:13:01 +01001190 iov.iov_len = MAX_SEND_FD * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001191 do {
1192 int ret3;
1193
1194 iov.iov_base = tmpbuf + curoff;
1195 ret = recvmsg(sock, &msghdr, 0);
1196 if (ret == -1 && errno == EINTR)
1197 continue;
1198 if (ret <= 0)
1199 break;
1200 /* Send an ack to let the sender know we got the sockets
1201 * and it can send some more
1202 */
1203 do {
1204 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
1205 } while (ret3 == -1 && errno == EINTR);
1206 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
1207 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
1208 if (cmsg->cmsg_level == SOL_SOCKET &&
1209 cmsg->cmsg_type == SCM_RIGHTS) {
1210 size_t totlen = cmsg->cmsg_len -
1211 CMSG_LEN(0);
1212 if (totlen / sizeof(int) + got_fd > fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001213 ha_warning("Got to many sockets !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001214 goto out;
1215 }
1216 /*
1217 * Be paranoid and use memcpy() to avoid any
1218 * potential alignement issue.
1219 */
1220 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
1221 got_fd += totlen / sizeof(int);
1222 }
1223 }
1224 curoff += ret;
1225 } while (got_fd < fd_nb);
1226
1227 if (got_fd != fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001228 ha_warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
1229 fd_nb, got_fd);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001230 goto out;
1231 }
1232 maxoff = curoff;
1233 curoff = 0;
1234 for (i = 0; i < got_fd; i++) {
1235 int fd = tmpfd[i];
1236 socklen_t socklen;
1237 int len;
1238
1239 xfer_sock = calloc(1, sizeof(*xfer_sock));
1240 if (!xfer_sock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001241 ha_warning("Failed to allocate memory in get_old_sockets() !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001242 break;
1243 }
1244 xfer_sock->fd = -1;
1245
1246 socklen = sizeof(xfer_sock->addr);
1247 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001248 ha_warning("Failed to get socket address\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001249 free(xfer_sock);
Olivier Houchardbe7b1ce2017-07-17 17:25:33 +02001250 xfer_sock = NULL;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001251 continue;
1252 }
1253 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001254 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001255 goto out;
1256 }
1257 len = tmpbuf[curoff++];
1258 if (len > 0) {
1259 /* We have a namespace */
1260 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001261 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001262 goto out;
1263 }
1264 xfer_sock->namespace = malloc(len + 1);
1265 if (!xfer_sock->namespace) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001266 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001267 goto out;
1268 }
1269 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
1270 xfer_sock->namespace[len] = 0;
1271 curoff += len;
1272 }
1273 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001274 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001275 goto out;
1276 }
1277 len = tmpbuf[curoff++];
1278 if (len > 0) {
1279 /* We have an interface */
1280 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001281 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001282 goto out;
1283 }
1284 xfer_sock->iface = malloc(len + 1);
1285 if (!xfer_sock->iface) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001286 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001287 goto out;
1288 }
1289 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
Olivier Houchard33e083c2018-03-15 17:48:49 +01001290 xfer_sock->iface[len] = 0;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001291 curoff += len;
1292 }
1293 if (curoff + sizeof(int) > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001294 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001295 goto out;
1296 }
1297 memcpy(&xfer_sock->options, &tmpbuf[curoff],
1298 sizeof(xfer_sock->options));
1299 curoff += sizeof(xfer_sock->options);
1300
1301 xfer_sock->fd = fd;
1302 if (xfer_sock_list)
1303 xfer_sock_list->prev = xfer_sock;
1304 xfer_sock->next = xfer_sock_list;
1305 xfer_sock->prev = NULL;
1306 xfer_sock_list = xfer_sock;
1307 xfer_sock = NULL;
1308 }
1309
1310 ret2 = 0;
1311out:
1312 /* If we failed midway make sure to close the remaining
1313 * file descriptors
1314 */
1315 if (tmpfd != NULL && i < got_fd) {
1316 for (; i < got_fd; i++) {
1317 close(tmpfd[i]);
1318 }
1319 }
1320 free(tmpbuf);
1321 free(tmpfd);
1322 free(cmsgbuf);
1323 if (sock != -1)
1324 close(sock);
1325 if (xfer_sock) {
1326 free(xfer_sock->namespace);
1327 free(xfer_sock->iface);
1328 if (xfer_sock->fd != -1)
1329 close(xfer_sock->fd);
1330 free(xfer_sock);
1331 }
1332 return (ret2);
1333}
1334
Willy Tarreaubaaee002006-06-26 02:48:02 +02001335/*
William Lallemand73b85e72017-06-01 17:38:51 +02001336 * copy and cleanup the current argv
1337 * Remove the -sf /-st parameters
1338 * Return an allocated copy of argv
1339 */
1340
1341static char **copy_argv(int argc, char **argv)
1342{
1343 char **newargv;
William Lallemand2bf6d622017-06-20 11:20:23 +02001344 int i = 0, j = 0;
William Lallemand73b85e72017-06-01 17:38:51 +02001345
1346 newargv = calloc(argc + 2, sizeof(char *));
1347 if (newargv == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001348 ha_warning("Cannot allocate memory\n");
William Lallemand73b85e72017-06-01 17:38:51 +02001349 return NULL;
1350 }
1351
William Lallemand2bf6d622017-06-20 11:20:23 +02001352 while (i < argc) {
1353 /* -sf or -st or -x */
William Lallemand29f690c2018-01-09 23:12:27 +01001354 if (i > 0 && argv[i][0] == '-' &&
1355 ((argv[i][1] == 's' && (argv[i][2] == 'f' || argv[i][2] == 't')) || argv[i][1] == 'x' )) {
William Lallemand2bf6d622017-06-20 11:20:23 +02001356 /* list of pids to finish ('f') or terminate ('t') or unix socket (-x) */
William Lallemand73b85e72017-06-01 17:38:51 +02001357 i++;
1358 while (i < argc && argv[i][0] != '-') {
1359 i++;
1360 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001361 continue;
William Lallemand73b85e72017-06-01 17:38:51 +02001362 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001363
1364 newargv[j++] = argv[i++];
William Lallemand73b85e72017-06-01 17:38:51 +02001365 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001366
William Lallemand73b85e72017-06-01 17:38:51 +02001367 return newargv;
1368}
1369
Willy Tarreau6c3a6812020-03-06 18:57:15 +01001370
1371/* Performs basic random seed initialization. The main issue with this is that
1372 * srandom_r() only takes 32 bits and purposely provides a reproducible sequence,
1373 * which means that there will only be 4 billion possible random sequences once
1374 * srandom() is called, regardless of the internal state. Not calling it is
1375 * even worse as we'll always produce the same randoms sequences. What we do
1376 * here is to create an initial sequence from various entropy sources, hash it
1377 * using SHA1 and keep the resulting 160 bits available globally.
1378 *
1379 * We initialize the current process with the first 32 bits before starting the
1380 * polling loop, where all this will be changed to have process specific and
1381 * thread specific sequences.
Willy Tarreau52bf8392020-03-08 00:42:37 +01001382 *
1383 * Before starting threads, it's still possible to call random() as srandom()
1384 * is initialized from this, but after threads and/or processes are started,
1385 * only ha_random() is expected to be used to guarantee distinct sequences.
Willy Tarreau6c3a6812020-03-06 18:57:15 +01001386 */
1387static void ha_random_boot(char *const *argv)
1388{
1389 unsigned char message[256];
1390 unsigned char *m = message;
1391 struct timeval tv;
1392 blk_SHA_CTX ctx;
1393 unsigned long l;
1394 int fd;
1395 int i;
1396
1397 /* start with current time as pseudo-random seed */
1398 gettimeofday(&tv, NULL);
1399 write_u32(m, tv.tv_sec); m += 4;
1400 write_u32(m, tv.tv_usec); m += 4;
1401
1402 /* PID and PPID add some OS-based randomness */
1403 write_u16(m, getpid()); m += 2;
1404 write_u16(m, getppid()); m += 2;
1405
1406 /* take up to 160 bits bytes from /dev/urandom if available (non-blocking) */
1407 fd = open("/dev/urandom", O_RDONLY);
1408 if (fd >= 0) {
1409 i = read(fd, m, 20);
1410 if (i > 0)
1411 m += i;
1412 close(fd);
1413 }
1414
1415 /* take up to 160 bits bytes from openssl (non-blocking) */
1416#ifdef USE_OPENSSL
1417 if (RAND_bytes(m, 20) == 1)
1418 m += 20;
1419#endif
1420
1421 /* take 160 bits from existing random in case it was already initialized */
1422 for (i = 0; i < 5; i++) {
1423 write_u32(m, random());
1424 m += 4;
1425 }
1426
1427 /* stack address (benefit form operating system's ASLR) */
1428 l = (unsigned long)&m;
1429 memcpy(m, &l, sizeof(l)); m += sizeof(l);
1430
1431 /* argv address (benefit form operating system's ASLR) */
1432 l = (unsigned long)&argv;
1433 memcpy(m, &l, sizeof(l)); m += sizeof(l);
1434
1435 /* use tv_usec again after all the operations above */
1436 gettimeofday(&tv, NULL);
1437 write_u32(m, tv.tv_usec); m += 4;
1438
1439 /*
1440 * At this point, ~84-92 bytes have been used
1441 */
1442
1443 /* finish with the hostname */
1444 strncpy((char *)m, hostname, message + sizeof(message) - m);
1445 m += strlen(hostname);
1446
1447 /* total message length */
1448 l = m - message;
1449
1450 memset(&ctx, 0, sizeof(ctx));
1451 blk_SHA1_Init(&ctx);
1452 blk_SHA1_Update(&ctx, message, l);
1453 blk_SHA1_Final(boot_seed, &ctx);
1454
1455 srandom(read_u32(boot_seed));
Willy Tarreau52bf8392020-03-08 00:42:37 +01001456 ha_random_seed(boot_seed, sizeof(boot_seed));
Willy Tarreau6c3a6812020-03-06 18:57:15 +01001457}
1458
Willy Tarreau5a023f02019-03-01 14:19:31 +01001459/* considers splicing proxies' maxconn, computes the ideal global.maxpipes
1460 * setting, and returns it. It may return -1 meaning "unlimited" if some
1461 * unlimited proxies have been found and the global.maxconn value is not yet
1462 * set. It may also return a value greater than maxconn if it's not yet set.
1463 * Note that a value of zero means there is no need for pipes. -1 is never
1464 * returned if global.maxconn is valid.
1465 */
1466static int compute_ideal_maxpipes()
1467{
1468 struct proxy *cur;
1469 int nbfe = 0, nbbe = 0;
1470 int unlimited = 0;
1471 int pipes;
1472 int max;
1473
1474 for (cur = proxies_list; cur; cur = cur->next) {
1475 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
1476 if (cur->cap & PR_CAP_FE) {
1477 max = cur->maxconn;
1478 nbfe += max;
1479 if (!max) {
1480 unlimited = 1;
1481 break;
1482 }
1483 }
1484 if (cur->cap & PR_CAP_BE) {
1485 max = cur->fullconn ? cur->fullconn : global.maxconn;
1486 nbbe += max;
1487 if (!max) {
1488 unlimited = 1;
1489 break;
1490 }
1491 }
1492 }
1493 }
1494
1495 pipes = MAX(nbfe, nbbe);
1496 if (global.maxconn) {
1497 if (pipes > global.maxconn || unlimited)
1498 pipes = global.maxconn;
1499 } else if (unlimited) {
1500 pipes = -1;
1501 }
1502
1503 return pipes >= 4 ? pipes / 4 : pipes;
1504}
1505
Willy Tarreauac350932019-03-01 15:43:14 +01001506/* considers global.maxsocks, global.maxpipes, async engines, SSL frontends and
1507 * rlimits and computes an ideal maxconn. It's meant to be called only when
1508 * maxsock contains the sum of listening FDs, before it is updated based on
Willy Tarreaudf23c0c2019-03-13 10:10:49 +01001509 * maxconn and pipes. If there are not enough FDs left, DEFAULT_MAXCONN (by
1510 * default 100) is returned as it is expected that it will even run on tight
1511 * environments, and will maintain compatibility with previous packages that
1512 * used to rely on this value as the default one. The system will emit a
1513 * warning indicating how many FDs are missing anyway if needed.
Willy Tarreauac350932019-03-01 15:43:14 +01001514 */
1515static int compute_ideal_maxconn()
1516{
1517 int ssl_sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1518 int engine_fds = global.ssl_used_async_engines * ssl_sides;
1519 int pipes = compute_ideal_maxpipes();
Willy Tarreaub1beaa32020-03-06 10:25:31 +01001520 int remain = MAX(rlim_fd_cur_at_boot, rlim_fd_max_at_boot);
Willy Tarreauac350932019-03-01 15:43:14 +01001521 int maxconn;
1522
1523 /* we have to take into account these elements :
1524 * - number of engine_fds, which inflates the number of FD needed per
1525 * connection by this number.
1526 * - number of pipes per connection on average : for the unlimited
1527 * case, this is 0.5 pipe FDs per connection, otherwise it's a
1528 * fixed value of 2*pipes.
1529 * - two FDs per connection
1530 */
1531
1532 /* subtract listeners and checks */
1533 remain -= global.maxsock;
1534
Willy Tarreau3f200852019-03-14 19:13:17 +01001535 /* one epoll_fd/kqueue_fd per thread */
1536 remain -= global.nbthread;
1537
1538 /* one wake-up pipe (2 fd) per thread */
1539 remain -= 2 * global.nbthread;
1540
Willy Tarreauac350932019-03-01 15:43:14 +01001541 /* Fixed pipes values : we only subtract them if they're not larger
1542 * than the remaining FDs because pipes are optional.
1543 */
1544 if (pipes >= 0 && pipes * 2 < remain)
1545 remain -= pipes * 2;
1546
1547 if (pipes < 0) {
1548 /* maxsock = maxconn * 2 + maxconn/4 * 2 + maxconn * engine_fds.
1549 * = maxconn * (2 + 0.5 + engine_fds)
1550 * = maxconn * (4 + 1 + 2*engine_fds) / 2
1551 */
1552 maxconn = 2 * remain / (5 + 2 * engine_fds);
1553 } else {
1554 /* maxsock = maxconn * 2 + maxconn * engine_fds.
1555 * = maxconn * (2 + engine_fds)
1556 */
1557 maxconn = remain / (2 + engine_fds);
1558 }
1559
Willy Tarreaudf23c0c2019-03-13 10:10:49 +01001560 return MAX(maxconn, DEFAULT_MAXCONN);
Willy Tarreauac350932019-03-01 15:43:14 +01001561}
1562
Willy Tarreaua409f302020-03-10 17:08:53 +01001563/* computes the estimated maxsock value for the given maxconn based on the
1564 * possibly set global.maxpipes and existing partial global.maxsock. It may
1565 * temporarily change global.maxconn for the time needed to propagate the
1566 * computations, and will reset it.
1567 */
1568static int compute_ideal_maxsock(int maxconn)
1569{
1570 int maxpipes = global.maxpipes;
1571 int maxsock = global.maxsock;
1572
1573
1574 if (!maxpipes) {
1575 int old_maxconn = global.maxconn;
1576
1577 global.maxconn = maxconn;
1578 maxpipes = compute_ideal_maxpipes();
1579 global.maxconn = old_maxconn;
1580 }
1581
1582 maxsock += maxconn * 2; /* each connection needs two sockets */
1583 maxsock += maxpipes * 2; /* each pipe needs two FDs */
1584 maxsock += global.nbthread; /* one epoll_fd/kqueue_fd per thread */
1585 maxsock += 2 * global.nbthread; /* one wake-up pipe (2 fd) per thread */
1586
1587 /* compute fd used by async engines */
1588 if (global.ssl_used_async_engines) {
1589 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1590
1591 maxsock += maxconn * sides * global.ssl_used_async_engines;
1592 }
1593 return maxsock;
1594}
1595
Willy Tarreau304e17e2020-03-10 17:54:54 +01001596/* Tests if it is possible to set the current process' RLIMIT_NOFILE to
1597 * <maxsock>, then sets it back to the previous value. Returns non-zero if the
1598 * value is accepted, non-zero otherwise. This is used to determine if an
1599 * automatic limit may be applied or not. When it is not, the caller knows that
1600 * the highest we can do is the rlim_max at boot. In case of error, we return
1601 * that the setting is possible, so that we defer the error processing to the
1602 * final stage in charge of enforcing this.
1603 */
1604static int check_if_maxsock_permitted(int maxsock)
1605{
1606 struct rlimit orig_limit, test_limit;
1607 int ret;
1608
1609 if (getrlimit(RLIMIT_NOFILE, &orig_limit) != 0)
1610 return 1;
1611
1612 /* don't go further if we can't even set to what we have */
1613 if (setrlimit(RLIMIT_NOFILE, &orig_limit) != 0)
1614 return 1;
1615
1616 test_limit.rlim_max = MAX(maxsock, orig_limit.rlim_max);
1617 test_limit.rlim_cur = test_limit.rlim_max;
1618 ret = setrlimit(RLIMIT_NOFILE, &test_limit);
1619
1620 if (setrlimit(RLIMIT_NOFILE, &orig_limit) != 0)
1621 return 1;
1622
1623 return ret == 0;
1624}
1625
1626
William Lallemand73b85e72017-06-01 17:38:51 +02001627/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001628 * This function initializes all the necessary variables. It only returns
1629 * if everything is OK. If something fails, it exits.
1630 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001631static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001632{
Willy Tarreaubaaee002006-06-26 02:48:02 +02001633 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001634 char *tmp;
1635 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +02001636 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +02001637 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +01001638 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +00001639 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +02001640 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +02001641 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +01001642 struct post_check_fct *pcf;
Willy Tarreauac350932019-03-01 15:43:14 +01001643 int ideal_maxconn;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001644
Christopher Faulete3a5e352017-10-24 13:53:54 +02001645 global.mode = MODE_STARTING;
William Lallemand73b85e72017-06-01 17:38:51 +02001646 next_argv = copy_argv(argc, argv);
1647
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001648 if (!init_trash_buffers(1)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001649 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet748919a2017-07-26 14:59:46 +02001650 exit(1);
1651 }
David du Colombier7af46052012-05-16 14:16:48 +02001652
Emeric Brun2b920a12010-09-23 18:30:22 +02001653 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
1654 * the string in case of truncation, and at least FreeBSD appears not to do
1655 * it.
1656 */
1657 memset(hostname, 0, sizeof(hostname));
1658 gethostname(hostname, sizeof(hostname) - 1);
1659 memset(localpeer, 0, sizeof(localpeer));
1660 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
William Lallemanddaf4cd22018-04-17 16:46:13 +02001661 setenv("HAPROXY_LOCALPEER", localpeer, 1);
Emeric Brun2b920a12010-09-23 18:30:22 +02001662
William Lallemand24c928c2020-01-14 17:58:18 +01001663 /* we were in mworker mode, we should restart in mworker mode */
1664 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL)
1665 global.mode |= MODE_MWORKER;
1666
Willy Tarreaubaaee002006-06-26 02:48:02 +02001667 /*
1668 * Initialize the previously static variables.
1669 */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001670
Willy Tarreau173d9952018-01-26 21:48:23 +01001671 totalconn = actconn = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001672 killed = 0;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001673
Willy Tarreaubaaee002006-06-26 02:48:02 +02001674
1675#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +01001676 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001677#endif
1678
Benoit GARNIERb413c2a2016-03-27 11:08:03 +02001679 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001680 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001681 start_date = now;
1682
Willy Tarreau6c3a6812020-03-06 18:57:15 +01001683 ha_random_boot(argv);
Willy Tarreau84310e22014-02-14 11:59:04 +01001684
Willy Tarreau8ed669b2013-01-11 15:49:37 +01001685 if (init_acl() != 0)
1686 exit(1);
Willy Tarreaub6b3df32018-11-26 16:31:20 +01001687
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001688 /* Initialise lua. */
1689 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001690
Christopher Fauletff2613e2016-11-09 11:36:17 +01001691 /* Initialize process vars */
1692 vars_init(&global.vars, SCOPE_PROC);
1693
Willy Tarreau43b78992009-01-25 15:42:27 +01001694 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaue5733232019-05-22 19:24:06 +02001695#if defined(USE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001696 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001697#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001698#if defined(USE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001699 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001700#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001701#if defined(USE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +01001702 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001703#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001704#if defined(USE_EVPORTS)
Emmanuel Hocdet0ba4f482019-04-08 16:53:32 +00001705 global.tune.options |= GTUNE_USE_EVPORTS;
1706#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001707#if defined(USE_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001708 global.tune.options |= GTUNE_USE_SPLICE;
1709#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001710#if defined(USE_GETADDRINFO)
1711 global.tune.options |= GTUNE_USE_GAI;
1712#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001713#if defined(SO_REUSEPORT)
1714 global.tune.options |= GTUNE_USE_REUSEPORT;
1715#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001716
1717 pid = getpid();
1718 progname = *argv;
1719 while ((tmp = strchr(progname, '/')) != NULL)
1720 progname = tmp + 1;
1721
Kevinm48936af2010-12-22 16:08:21 +00001722 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +02001723 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +00001724
Willy Tarreaubaaee002006-06-26 02:48:02 +02001725 argc--; argv++;
1726 while (argc > 0) {
1727 char *flag;
1728
1729 if (**argv == '-') {
1730 flag = *argv+1;
1731
1732 /* 1 arg */
1733 if (*flag == 'v') {
1734 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +01001735 if (flag[1] == 'v') /* -vv */
1736 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001737 exit(0);
1738 }
Willy Tarreaue5733232019-05-22 19:24:06 +02001739#if defined(USE_EPOLL)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001740 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +01001741 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001742#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001743#if defined(USE_POLL)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001744 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +01001745 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001746#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001747#if defined(USE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001748 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +01001749 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001750#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001751#if defined(USE_EVPORTS)
Emmanuel Hocdet0ba4f482019-04-08 16:53:32 +00001752 else if (*flag == 'd' && flag[1] == 'v')
1753 global.tune.options &= ~GTUNE_USE_EVPORTS;
1754#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001755#if defined(USE_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001756 else if (*flag == 'd' && flag[1] == 'S')
1757 global.tune.options &= ~GTUNE_USE_SPLICE;
1758#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001759#if defined(USE_GETADDRINFO)
1760 else if (*flag == 'd' && flag[1] == 'G')
1761 global.tune.options &= ~GTUNE_USE_GAI;
1762#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001763#if defined(SO_REUSEPORT)
1764 else if (*flag == 'd' && flag[1] == 'R')
1765 global.tune.options &= ~GTUNE_USE_REUSEPORT;
1766#endif
Emeric Brun850efd52014-01-29 12:24:34 +01001767 else if (*flag == 'd' && flag[1] == 'V')
1768 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001769 else if (*flag == 'V')
1770 arg_mode |= MODE_VERBOSE;
1771 else if (*flag == 'd' && flag[1] == 'b')
1772 arg_mode |= MODE_FOREGROUND;
Willy Tarreau3eb10b82020-04-15 16:42:39 +02001773 else if (*flag == 'd' && flag[1] == 'W')
1774 arg_mode |= MODE_ZERO_WARNING;
Willy Tarreau6e064432012-05-08 15:40:42 +02001775 else if (*flag == 'd' && flag[1] == 'M')
1776 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +01001777 else if (*flag == 'd' && flag[1] == 'r')
1778 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001779 else if (*flag == 'd')
1780 arg_mode |= MODE_DEBUG;
1781 else if (*flag == 'c')
1782 arg_mode |= MODE_CHECK;
William Lallemand095ba4c2017-06-01 17:38:50 +02001783 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +02001784 arg_mode |= MODE_DAEMON;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001785 else if (*flag == 'W' && flag[1] == 's') {
Lukas Tribusf46bf952017-11-21 12:39:34 +01001786 arg_mode |= MODE_MWORKER | MODE_FOREGROUND;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001787#if defined(USE_SYSTEMD)
1788 global.tune.options |= GTUNE_USE_SYSTEMD;
1789#else
Christopher Faulet767a84b2017-11-24 16:50:31 +01001790 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 +01001791 usage(progname);
1792#endif
1793 }
William Lallemand095ba4c2017-06-01 17:38:50 +02001794 else if (*flag == 'W')
1795 arg_mode |= MODE_MWORKER;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001796 else if (*flag == 'q')
1797 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001798 else if (*flag == 'x') {
William Lallemand45eff442017-06-19 15:57:55 +02001799 if (argc <= 1 || argv[1][0] == '-') {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001800 ha_alert("Unix socket path expected with the -x flag\n\n");
William Lallemand45eff442017-06-19 15:57:55 +02001801 usage(progname);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001802 }
William Lallemand4fc09692017-06-19 16:37:19 +02001803 if (old_unixsocket)
Christopher Faulet767a84b2017-11-24 16:50:31 +01001804 ha_warning("-x option already set, overwriting the value\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001805 old_unixsocket = argv[1];
William Lallemand4fc09692017-06-19 16:37:19 +02001806
Olivier Houchardf73629d2017-04-05 22:33:04 +02001807 argv++;
1808 argc--;
1809 }
William Lallemande7361152018-10-26 14:47:36 +02001810 else if (*flag == 'S') {
1811 struct wordlist *c;
1812
1813 if (argc <= 1 || argv[1][0] == '-') {
1814 ha_alert("Socket and optional bind parameters expected with the -S flag\n");
1815 usage(progname);
1816 }
1817 if ((c = malloc(sizeof(*c))) == NULL || (c->s = strdup(argv[1])) == NULL) {
1818 ha_alert("Cannot allocate memory\n");
1819 exit(EXIT_FAILURE);
1820 }
1821 LIST_ADD(&mworker_cli_conf, &c->list);
1822
1823 argv++;
1824 argc--;
1825 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001826 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
1827 /* list of pids to finish ('f') or terminate ('t') */
1828
1829 if (flag[1] == 'f')
1830 oldpids_sig = SIGUSR1; /* finish then exit */
1831 else
1832 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001833 while (argc > 1 && argv[1][0] != '-') {
Chris Lane236062f2018-02-05 23:15:44 +00001834 char * endptr = NULL;
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001835 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
1836 if (!oldpids) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001837 ha_alert("Cannot allocate old pid : out of memory.\n");
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001838 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001839 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001840 argc--; argv++;
Chris Lane236062f2018-02-05 23:15:44 +00001841 errno = 0;
1842 oldpids[nb_oldpids] = strtol(*argv, &endptr, 10);
1843 if (errno) {
1844 ha_alert("-%2s option: failed to parse {%s}: %s\n",
1845 flag,
1846 *argv, strerror(errno));
1847 exit(1);
1848 } else if (endptr && strlen(endptr)) {
Willy Tarreau90807112020-02-25 08:16:33 +01001849 while (isspace((unsigned char)*endptr)) endptr++;
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001850 if (*endptr != 0) {
Chris Lane236062f2018-02-05 23:15:44 +00001851 ha_alert("-%2s option: some bytes unconsumed in PID list {%s}\n",
1852 flag, endptr);
1853 exit(1);
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001854 }
Chris Lane236062f2018-02-05 23:15:44 +00001855 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001856 if (oldpids[nb_oldpids] <= 0)
1857 usage(progname);
1858 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001859 }
1860 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001861 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
1862 /* now that's a cfgfile list */
1863 argv++; argc--;
1864 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001865 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001866 ha_alert("Cannot load configuration file/directory %s : %s\n",
1867 *argv,
1868 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +02001869 exit(1);
1870 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001871 argv++; argc--;
1872 }
1873 break;
1874 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001875 else { /* >=2 args */
1876 argv++; argc--;
1877 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001878 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001879
1880 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +02001881 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001882 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +01001883 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001884 case 'N' : cfg_maxpconn = atol(*argv); break;
William Lallemanddaf4cd22018-04-17 16:46:13 +02001885 case 'L' :
1886 strncpy(localpeer, *argv, sizeof(localpeer) - 1);
1887 setenv("HAPROXY_LOCALPEER", localpeer, 1);
1888 break;
Willy Tarreau5d01a632009-06-22 16:02:30 +02001889 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +02001890 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001891 ha_alert("Cannot load configuration file/directory %s : %s\n",
1892 *argv,
1893 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +02001894 exit(1);
1895 }
Willy Tarreau5d01a632009-06-22 16:02:30 +02001896 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001897 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001898 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001899 }
1900 }
1901 }
1902 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001903 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001904 argv++; argc--;
1905 }
1906
Christopher Faulete3a5e352017-10-24 13:53:54 +02001907 global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
Willy Tarreau3eb10b82020-04-15 16:42:39 +02001908 | MODE_QUIET | MODE_CHECK | MODE_DEBUG | MODE_ZERO_WARNING));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001909
William Lallemand944e6192018-11-21 15:48:31 +01001910 if (getenv("HAPROXY_MWORKER_WAIT_ONLY")) {
William Lallemandcb11fd22017-06-01 17:38:52 +02001911 unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
William Lallemand944e6192018-11-21 15:48:31 +01001912 global.mode |= MODE_MWORKER_WAIT;
1913 global.mode &= ~MODE_MWORKER;
William Lallemandcb11fd22017-06-01 17:38:52 +02001914 }
1915
1916 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") != NULL)) {
1917 atexit_flag = 1;
1918 atexit(reexec_on_failure);
1919 }
1920
Willy Tarreau576132e2011-09-10 19:26:56 +02001921 if (change_dir && chdir(change_dir) < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001922 ha_alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
Willy Tarreau576132e2011-09-10 19:26:56 +02001923 exit(1);
1924 }
1925
Willy Tarreaubaaee002006-06-26 02:48:02 +02001926 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001927
1928 init_default_instance();
1929
William Lallemand944e6192018-11-21 15:48:31 +01001930 /* in wait mode, we don't try to read the configuration files */
1931 if (!(global.mode & MODE_MWORKER_WAIT)) {
William Lallemand7b302d82019-05-20 11:15:37 +02001932 struct buffer *trash = get_trash_chunk();
Willy Tarreauc4382422009-12-06 13:10:44 +01001933
William Lallemand944e6192018-11-21 15:48:31 +01001934 /* handle cfgfiles that are actually directories */
1935 cfgfiles_expand_directories();
1936
1937 if (LIST_ISEMPTY(&cfg_cfgfiles))
1938 usage(progname);
1939
1940
1941 list_for_each_entry(wl, &cfg_cfgfiles, list) {
1942 int ret;
1943
William Lallemand7b302d82019-05-20 11:15:37 +02001944 if (trash->data)
1945 chunk_appendf(trash, ";");
1946
1947 chunk_appendf(trash, "%s", wl->s);
1948
William Lallemand944e6192018-11-21 15:48:31 +01001949 ret = readcfgfile(wl->s);
1950 if (ret == -1) {
1951 ha_alert("Could not open configuration file %s : %s\n",
1952 wl->s, strerror(errno));
1953 exit(1);
1954 }
1955 if (ret & (ERR_ABORT|ERR_FATAL))
1956 ha_alert("Error(s) found in configuration file : %s\n", wl->s);
1957 err_code |= ret;
1958 if (err_code & ERR_ABORT)
1959 exit(1);
Willy Tarreauc4382422009-12-06 13:10:44 +01001960 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001961
William Lallemand944e6192018-11-21 15:48:31 +01001962 /* do not try to resolve arguments nor to spot inconsistencies when
1963 * the configuration contains fatal errors caused by files not found
1964 * or failed memory allocations.
1965 */
1966 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1967 ha_alert("Fatal errors found in configuration.\n");
1968 exit(1);
1969 }
William Lallemand7b302d82019-05-20 11:15:37 +02001970 if (trash->data)
1971 setenv("HAPROXY_CFGFILES", trash->area, 1);
1972
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001973 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001974 if (global.mode & MODE_MWORKER) {
1975 int proc;
William Lallemand16dd1b32018-11-19 18:46:18 +01001976 struct mworker_proc *tmproc;
1977
William Lallemand482f9a92019-04-12 16:15:00 +02001978 setenv("HAPROXY_MWORKER", "1", 1);
1979
William Lallemand16dd1b32018-11-19 18:46:18 +01001980 if (getenv("HAPROXY_MWORKER_REEXEC") == NULL) {
1981
William Lallemandf3a86832019-04-01 11:29:58 +02001982 tmproc = calloc(1, sizeof(*tmproc));
William Lallemand16dd1b32018-11-19 18:46:18 +01001983 if (!tmproc) {
1984 ha_alert("Cannot allocate process structures.\n");
1985 exit(EXIT_FAILURE);
1986 }
William Lallemand8f7069a2019-04-12 16:09:23 +02001987 tmproc->options |= PROC_O_TYPE_MASTER; /* master */
William Lallemand16dd1b32018-11-19 18:46:18 +01001988 tmproc->reloads = 0;
1989 tmproc->relative_pid = 0;
1990 tmproc->pid = pid;
1991 tmproc->timestamp = start_date.tv_sec;
1992 tmproc->ipc_fd[0] = -1;
1993 tmproc->ipc_fd[1] = -1;
1994
1995 proc_self = tmproc;
1996
1997 LIST_ADDQ(&proc_list, &tmproc->list);
1998 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001999
2000 for (proc = 0; proc < global.nbproc; proc++) {
William Lallemandce83b4a2018-10-26 14:47:30 +02002001
William Lallemandf3a86832019-04-01 11:29:58 +02002002 tmproc = calloc(1, sizeof(*tmproc));
William Lallemandce83b4a2018-10-26 14:47:30 +02002003 if (!tmproc) {
2004 ha_alert("Cannot allocate process structures.\n");
2005 exit(EXIT_FAILURE);
2006 }
2007
William Lallemand8f7069a2019-04-12 16:09:23 +02002008 tmproc->options |= PROC_O_TYPE_WORKER; /* worker */
William Lallemandce83b4a2018-10-26 14:47:30 +02002009 tmproc->pid = -1;
2010 tmproc->reloads = 0;
William Lallemande3683302018-11-19 18:46:17 +01002011 tmproc->timestamp = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02002012 tmproc->relative_pid = 1 + proc;
William Lallemand550db6d2018-11-06 17:37:12 +01002013 tmproc->ipc_fd[0] = -1;
2014 tmproc->ipc_fd[1] = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02002015
2016 if (mworker_cli_sockpair_new(tmproc, proc) < 0) {
2017 exit(EXIT_FAILURE);
2018 }
2019
2020 LIST_ADDQ(&proc_list, &tmproc->list);
2021 }
William Lallemand944e6192018-11-21 15:48:31 +01002022 }
2023 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
2024 struct wordlist *it, *c;
2025
William Lallemand1b663612018-10-26 14:47:33 +02002026 mworker_env_to_proc_list(); /* get the info of the children in the env */
William Lallemand8a022572018-10-26 14:47:35 +02002027
William Lallemande7361152018-10-26 14:47:36 +02002028
William Lallemand550db6d2018-11-06 17:37:12 +01002029 if (!LIST_ISEMPTY(&mworker_cli_conf)) {
William Lallemande7361152018-10-26 14:47:36 +02002030
William Lallemand550db6d2018-11-06 17:37:12 +01002031 if (mworker_cli_proxy_create() < 0) {
William Lallemande7361152018-10-26 14:47:36 +02002032 ha_alert("Can't create the master's CLI.\n");
2033 exit(EXIT_FAILURE);
2034 }
William Lallemande7361152018-10-26 14:47:36 +02002035
William Lallemand550db6d2018-11-06 17:37:12 +01002036 list_for_each_entry_safe(c, it, &mworker_cli_conf, list) {
2037
2038 if (mworker_cli_proxy_new_listener(c->s) < 0) {
2039 ha_alert("Can't create the master's CLI.\n");
2040 exit(EXIT_FAILURE);
2041 }
2042 LIST_DEL(&c->list);
2043 free(c->s);
2044 free(c);
2045 }
2046 }
William Lallemandce83b4a2018-10-26 14:47:30 +02002047 }
2048
Willy Tarreaubb925012009-07-23 13:36:36 +02002049 err_code |= check_config_validity();
Christopher Fauletc1692962019-08-12 09:51:07 +02002050 for (px = proxies_list; px; px = px->next) {
2051 struct server *srv;
2052 struct post_proxy_check_fct *ppcf;
2053 struct post_server_check_fct *pscf;
2054
2055 list_for_each_entry(pscf, &post_server_check_list, list) {
2056 for (srv = px->srv; srv; srv = srv->next)
2057 err_code |= pscf->fct(srv);
2058 }
2059 list_for_each_entry(ppcf, &post_proxy_check_list, list)
2060 err_code |= ppcf->fct(px);
2061 }
Willy Tarreaubb925012009-07-23 13:36:36 +02002062 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002063 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02002064 exit(1);
2065 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002066
Carl Henrik Lundef91ac192020-02-27 16:45:50 +01002067 err_code |= pattern_finalize_config();
2068 if (err_code & (ERR_ABORT|ERR_FATAL)) {
2069 ha_alert("Failed to finalize pattern config.\n");
2070 exit(1);
2071 }
Willy Tarreau0f936722019-04-11 14:47:08 +02002072
Willy Tarreau70060452015-12-14 12:46:07 +01002073 /* recompute the amount of per-process memory depending on nbproc and
2074 * the shared SSL cache size (allowed to exist in all processes).
2075 */
2076 if (global.rlimit_memmax_all) {
2077#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
2078 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
2079
2080 global.rlimit_memmax =
2081 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
2082 ssl_cache_bytes) / global.nbproc +
2083 ssl_cache_bytes + 1048575LL) / 1048576LL;
2084#else
2085 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
2086#endif
2087 }
2088
Willy Tarreaue5733232019-05-22 19:24:06 +02002089#ifdef USE_NS
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01002090 err_code |= netns_init();
2091 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002092 ha_alert("Failed to initialize namespace support.\n");
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01002093 exit(1);
2094 }
2095#endif
2096
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01002097 /* Apply server states */
2098 apply_server_state();
2099
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002100 for (px = proxies_list; px; px = px->next)
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01002101 srv_compute_all_admin_states(px);
2102
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01002103 /* Apply servers' configured address */
2104 err_code |= srv_init_addr();
2105 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002106 ha_alert("Failed to initialize server(s) addr.\n");
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01002107 exit(1);
2108 }
2109
Willy Tarreau3eb10b82020-04-15 16:42:39 +02002110 if (warned & WARN_ANY && global.mode & MODE_ZERO_WARNING) {
2111 ha_alert("Some warnings were found and 'zero-warning' is set. Aborting.\n");
2112 exit(1);
2113 }
2114
Willy Tarreaubaaee002006-06-26 02:48:02 +02002115 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01002116 struct peers *pr;
2117 struct proxy *px;
2118
Willy Tarreaubebd2122020-04-15 16:06:11 +02002119 if (warned & WARN_ANY)
2120 qfprintf(stdout, "Warnings were found.\n");
2121
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002122 for (pr = cfg_peers; pr; pr = pr->next)
Willy Tarreau8b15ba12012-02-02 17:48:18 +01002123 if (pr->peers_fe)
2124 break;
2125
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002126 for (px = proxies_list; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02002127 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01002128 break;
2129
2130 if (pr || px) {
2131 /* At least one peer or one listener has been found */
2132 qfprintf(stdout, "Configuration file is valid\n");
2133 exit(0);
2134 }
2135 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
2136 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002137 }
Willy Tarreaue9b26022011-08-01 20:57:55 +02002138
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002139 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02002140 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02002141
Willy Tarreaue6945732016-12-21 19:57:00 +01002142 list_for_each_entry(pcf, &post_check_list, list) {
2143 err_code |= pcf->fct();
2144 if (err_code & (ERR_ABORT|ERR_FATAL))
2145 exit(1);
2146 }
2147
Willy Tarreaubaaee002006-06-26 02:48:02 +02002148 if (cfg_maxconn > 0)
2149 global.maxconn = cfg_maxconn;
2150
Willy Tarreau8d687d82019-03-01 09:39:42 +01002151 if (global.stats_fe)
2152 global.maxsock += global.stats_fe->maxconn;
2153
2154 if (cfg_peers) {
2155 /* peers also need to bypass global maxconn */
2156 struct peers *p = cfg_peers;
2157
2158 for (p = cfg_peers; p; p = p->next)
2159 if (p->peers_fe)
2160 global.maxsock += p->peers_fe->maxconn;
2161 }
2162
Willy Tarreaubaaee002006-06-26 02:48:02 +02002163 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02002164 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002165 global.pidfile = strdup(cfg_pidfile);
2166 }
2167
Willy Tarreaud0256482015-01-15 21:45:22 +01002168 /* Now we want to compute the maxconn and possibly maxsslconn values.
Willy Tarreauac350932019-03-01 15:43:14 +01002169 * It's a bit tricky. Maxconn defaults to the pre-computed value based
2170 * on rlim_fd_cur and the number of FDs in use due to the configuration,
2171 * and maxsslconn defaults to DEFAULT_MAXSSLCONN. On top of that we can
2172 * enforce a lower limit based on memmax.
Willy Tarreaud0256482015-01-15 21:45:22 +01002173 *
2174 * If memmax is set, then it depends on which values are set. If
2175 * maxsslconn is set, we use memmax to determine how many cleartext
2176 * connections may be added, and set maxconn to the sum of the two.
2177 * If maxconn is set and not maxsslconn, maxsslconn is computed from
2178 * the remaining amount of memory between memmax and the cleartext
2179 * connections. If neither are set, then it is considered that all
2180 * connections are SSL-capable, and maxconn is computed based on this,
2181 * then maxsslconn accordingly. We need to know if SSL is used on the
2182 * frontends, backends, or both, because when it's used on both sides,
2183 * we need twice the value for maxsslconn, but we only count the
2184 * handshake once since it is not performed on the two sides at the
2185 * same time (frontend-side is terminated before backend-side begins).
2186 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01002187 * ssl_handshake_cost during its initialization. In any case, if
2188 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
2189 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01002190 */
Willy Tarreauac350932019-03-01 15:43:14 +01002191 ideal_maxconn = compute_ideal_maxconn();
2192
Willy Tarreaud0256482015-01-15 21:45:22 +01002193 if (!global.rlimit_memmax) {
2194 if (global.maxconn == 0) {
Willy Tarreauac350932019-03-01 15:43:14 +01002195 global.maxconn = ideal_maxconn;
Willy Tarreaud0256482015-01-15 21:45:22 +01002196 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
2197 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
2198 }
2199 }
2200#ifdef USE_OPENSSL
2201 else if (!global.maxconn && !global.maxsslconn &&
2202 (global.ssl_used_frontend || global.ssl_used_backend)) {
2203 /* memmax is set, compute everything automatically. Here we want
2204 * to ensure that all SSL connections will be served. We take
2205 * care of the number of sides where SSL is used, and consider
2206 * the worst case : SSL used on both sides and doing a handshake
2207 * simultaneously. Note that we can't have more than maxconn
2208 * handshakes at a time by definition, so for the worst case of
2209 * two SSL conns per connection, we count a single handshake.
2210 */
2211 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
2212 int64_t mem = global.rlimit_memmax * 1048576ULL;
Willy Tarreau304e17e2020-03-10 17:54:54 +01002213 int retried = 0;
Willy Tarreaud0256482015-01-15 21:45:22 +01002214
2215 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
2216 mem -= global.maxzlibmem;
2217 mem = mem * MEM_USABLE_RATIO;
2218
Willy Tarreau304e17e2020-03-10 17:54:54 +01002219 /* Principle: we test once to set maxconn according to the free
2220 * memory. If it results in values the system rejects, we try a
2221 * second time by respecting rlim_fd_max. If it fails again, we
2222 * go back to the initial value and will let the final code
2223 * dealing with rlimit report the error. That's up to 3 attempts.
2224 */
2225 do {
2226 global.maxconn = mem /
2227 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
2228 sides * global.ssl_session_max_cost + // SSL buffers, one per side
2229 global.ssl_handshake_max_cost); // 1 handshake per connection max
Willy Tarreaud0256482015-01-15 21:45:22 +01002230
Willy Tarreau304e17e2020-03-10 17:54:54 +01002231 if (retried == 1)
2232 global.maxconn = MIN(global.maxconn, ideal_maxconn);
2233 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01002234#ifdef SYSTEM_MAXCONN
Willy Tarreau304e17e2020-03-10 17:54:54 +01002235 if (global.maxconn > SYSTEM_MAXCONN)
2236 global.maxconn = SYSTEM_MAXCONN;
Willy Tarreau474b96a2015-01-28 19:03:21 +01002237#endif /* SYSTEM_MAXCONN */
Willy Tarreau304e17e2020-03-10 17:54:54 +01002238 global.maxsslconn = sides * global.maxconn;
2239
2240 if (check_if_maxsock_permitted(compute_ideal_maxsock(global.maxconn)))
2241 break;
2242 } while (retried++ < 2);
2243
Willy Tarreaud0256482015-01-15 21:45:22 +01002244 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
2245 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
2246 global.maxconn, global.maxsslconn);
2247 }
2248 else if (!global.maxsslconn &&
2249 (global.ssl_used_frontend || global.ssl_used_backend)) {
2250 /* memmax and maxconn are known, compute maxsslconn automatically.
2251 * maxsslconn being forced, we don't know how many of it will be
2252 * on each side if both sides are being used. The worst case is
2253 * when all connections use only one SSL instance because
2254 * handshakes may be on two sides at the same time.
2255 */
2256 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
2257 int64_t mem = global.rlimit_memmax * 1048576ULL;
2258 int64_t sslmem;
2259
2260 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
2261 mem -= global.maxzlibmem;
2262 mem = mem * MEM_USABLE_RATIO;
2263
Willy Tarreau87b09662015-04-03 00:22:06 +02002264 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01002265 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
2266 global.maxsslconn = round_2dig(global.maxsslconn);
2267
2268 if (sslmem <= 0 || global.maxsslconn < sides) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002269 ha_alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
2270 "high for the global.memmax value (%d MB). The absolute maximum possible value "
2271 "without SSL is %d, but %d was found and SSL is in use.\n",
2272 global.rlimit_memmax,
2273 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
2274 global.maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01002275 exit(1);
2276 }
2277
2278 if (global.maxsslconn > sides * global.maxconn)
2279 global.maxsslconn = sides * global.maxconn;
2280
2281 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
2282 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
2283 }
2284#endif
2285 else if (!global.maxconn) {
2286 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
2287 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
2288 int64_t mem = global.rlimit_memmax * 1048576ULL;
2289 int64_t clearmem;
Willy Tarreau304e17e2020-03-10 17:54:54 +01002290 int retried = 0;
Willy Tarreaud0256482015-01-15 21:45:22 +01002291
2292 if (global.ssl_used_frontend || global.ssl_used_backend)
2293 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
2294
2295 mem -= global.maxzlibmem;
2296 mem = mem * MEM_USABLE_RATIO;
2297
2298 clearmem = mem;
2299 if (sides)
2300 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
2301
Willy Tarreau304e17e2020-03-10 17:54:54 +01002302 /* Principle: we test once to set maxconn according to the free
2303 * memory. If it results in values the system rejects, we try a
2304 * second time by respecting rlim_fd_max. If it fails again, we
2305 * go back to the initial value and will let the final code
2306 * dealing with rlimit report the error. That's up to 3 attempts.
2307 */
2308 do {
2309 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
2310 if (retried == 1)
2311 global.maxconn = MIN(global.maxconn, ideal_maxconn);
2312 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01002313#ifdef SYSTEM_MAXCONN
Willy Tarreau304e17e2020-03-10 17:54:54 +01002314 if (global.maxconn > SYSTEM_MAXCONN)
2315 global.maxconn = SYSTEM_MAXCONN;
Willy Tarreau474b96a2015-01-28 19:03:21 +01002316#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01002317
Willy Tarreau304e17e2020-03-10 17:54:54 +01002318 if (clearmem <= 0 || !global.maxconn) {
2319 ha_alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
2320 "high for the global.memmax value (%d MB). The absolute maximum possible value "
2321 "is %d, but %d was found.\n",
2322 global.rlimit_memmax,
Christopher Faulet767a84b2017-11-24 16:50:31 +01002323 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
Willy Tarreau304e17e2020-03-10 17:54:54 +01002324 global.maxsslconn);
2325 exit(1);
2326 }
2327
2328 if (check_if_maxsock_permitted(compute_ideal_maxsock(global.maxconn)))
2329 break;
2330 } while (retried++ < 2);
Willy Tarreaud0256482015-01-15 21:45:22 +01002331
2332 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2333 if (sides && global.maxsslconn > sides * global.maxconn) {
2334 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
2335 "to be limited to %d. Better reduce global.maxsslconn to get more "
2336 "room for extra connections.\n", global.maxsslconn, global.maxconn);
2337 }
2338 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
2339 }
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002340 }
2341
Willy Tarreaua409f302020-03-10 17:08:53 +01002342 global.maxsock = compute_ideal_maxsock(global.maxconn);
2343 global.hardmaxconn = global.maxconn;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002344
Olivier Houchard88698d92019-04-16 19:07:22 +02002345 /* update connection pool thresholds */
2346 global.tune.pool_low_count = ((long long)global.maxsock * global.tune.pool_low_ratio + 99) / 100;
2347 global.tune.pool_high_count = ((long long)global.maxsock * global.tune.pool_high_ratio + 99) / 100;
2348
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002349 proxy_adjust_all_maxconn();
2350
Willy Tarreau1db37712007-06-03 17:16:49 +02002351 if (global.tune.maxpollevents <= 0)
2352 global.tune.maxpollevents = MAX_POLL_EVENTS;
2353
Olivier Houchard1599b802018-05-24 18:59:04 +02002354 if (global.tune.runqueue_depth <= 0)
2355 global.tune.runqueue_depth = RUNQUEUE_DEPTH;
2356
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01002357 if (global.tune.recv_enough == 0)
2358 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
2359
Willy Tarreau27a674e2009-08-17 07:23:33 +02002360 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
2361 global.tune.maxrewrite = global.tune.bufsize / 2;
2362
Willy Tarreaubaaee002006-06-26 02:48:02 +02002363 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
2364 /* command line debug mode inhibits configuration mode */
William Lallemand095ba4c2017-06-01 17:38:50 +02002365 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002366 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
2367 }
2368
William Lallemand095ba4c2017-06-01 17:38:50 +02002369 if (arg_mode & MODE_DAEMON) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002370 /* command line daemon mode inhibits foreground and debug modes mode */
2371 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
William Lallemand095ba4c2017-06-01 17:38:50 +02002372 global.mode |= arg_mode & MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002373 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002374
2375 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02002376
William Lallemand095ba4c2017-06-01 17:38:50 +02002377 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002378 ha_warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
William Lallemand095ba4c2017-06-01 17:38:50 +02002379 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002380 }
2381
William Lallemand095ba4c2017-06-01 17:38:50 +02002382 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_MWORKER))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002383 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002384 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 +02002385 global.nbproc = 1;
2386 }
2387
2388 if (global.nbproc < 1)
2389 global.nbproc = 1;
2390
Christopher Fauletbe0faa22017-08-29 15:37:10 +02002391 if (global.nbthread < 1)
2392 global.nbthread = 1;
2393
Christopher Faulet3ef26392017-08-29 16:46:57 +02002394 /* Realloc trash buffers because global.tune.bufsize may have changed */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002395 if (!init_trash_buffers(0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002396 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet3ef26392017-08-29 16:46:57 +02002397 exit(1);
2398 }
2399
Christopher Faulet96d44832017-11-14 22:02:30 +01002400 if (!init_log_buffers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002401 ha_alert("failed to initialize log buffers.\n");
Christopher Faulet96d44832017-11-14 22:02:30 +01002402 exit(1);
2403 }
2404
Willy Tarreauef1d1f82007-04-16 00:25:25 +02002405 /*
2406 * Note: we could register external pollers here.
2407 * Built-in pollers have been registered before main().
2408 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02002409
Willy Tarreau43b78992009-01-25 15:42:27 +01002410 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02002411 disable_poller("kqueue");
2412
Emmanuel Hocdet0ba4f482019-04-08 16:53:32 +00002413 if (!(global.tune.options & GTUNE_USE_EVPORTS))
2414 disable_poller("evports");
2415
Willy Tarreau43b78992009-01-25 15:42:27 +01002416 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002417 disable_poller("epoll");
2418
Willy Tarreau43b78992009-01-25 15:42:27 +01002419 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002420 disable_poller("poll");
2421
Willy Tarreau43b78992009-01-25 15:42:27 +01002422 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002423 disable_poller("select");
2424
2425 /* Note: we could disable any poller by name here */
2426
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002427 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02002428 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002429 fprintf(stderr, "\n");
2430 list_filters(stderr);
2431 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002432
Willy Tarreau4f60f162007-04-08 16:39:58 +02002433 if (!init_pollers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002434 ha_alert("No polling mechanism available.\n"
2435 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
2436 " is too low on this platform to support maxconn and the number of listeners\n"
2437 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
2438 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
2439 " global maxconn setting to accommodate the system's limitation. For reference,\n"
2440 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
2441 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
2442 " check build settings using 'haproxy -vv'.\n\n",
2443 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002444 exit(1);
2445 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002446 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2447 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002448 }
2449
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002450 if (!global.node)
2451 global.node = strdup(hostname);
2452
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01002453 if (!hlua_post_init())
2454 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01002455
Maxime de Roucy0f503922016-05-13 23:52:55 +02002456 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002457}
2458
Simon Horman6fb82592011-07-15 13:14:11 +09002459static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09002460{
Simon Hormanac821422011-07-15 13:14:09 +09002461 struct acl_term_suite *suite, *suiteb;
2462 struct acl_term *term, *termb;
2463
Simon Horman6fb82592011-07-15 13:14:11 +09002464 if (!cond)
2465 return;
2466
2467 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
2468 list_for_each_entry_safe(term, termb, &suite->terms, list) {
2469 LIST_DEL(&term->list);
2470 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09002471 }
Simon Horman6fb82592011-07-15 13:14:11 +09002472 LIST_DEL(&suite->list);
2473 free(suite);
2474 }
2475
2476 free(cond);
2477}
2478
Christopher Fauletcb550132019-12-17 11:25:46 +01002479static void deinit_act_rules(struct list *rules)
Simon Horman6fb82592011-07-15 13:14:11 +09002480{
Christopher Fauletcb550132019-12-17 11:25:46 +01002481 struct act_rule *rule, *ruleb;
Simon Horman6fb82592011-07-15 13:14:11 +09002482
Christopher Fauletcb550132019-12-17 11:25:46 +01002483 list_for_each_entry_safe(rule, ruleb, rules, list) {
2484 LIST_DEL(&rule->list);
2485 deinit_acl_cond(rule->cond);
Christopher Faulet58b35642019-12-17 11:48:42 +01002486 if (rule->release_ptr)
2487 rule->release_ptr(rule);
Christopher Fauletcb550132019-12-17 11:25:46 +01002488 free(rule);
Simon Hormanac821422011-07-15 13:14:09 +09002489 }
2490}
2491
Simon Horman6fb82592011-07-15 13:14:11 +09002492static void deinit_stick_rules(struct list *rules)
2493{
2494 struct sticking_rule *rule, *ruleb;
2495
2496 list_for_each_entry_safe(rule, ruleb, rules, list) {
2497 LIST_DEL(&rule->list);
2498 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02002499 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09002500 free(rule);
2501 }
2502}
2503
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002504void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002505{
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002506 struct proxy *p = proxies_list, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002507 struct cap_hdr *h,*h_next;
2508 struct server *s,*s_next;
2509 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002510 struct acl_cond *cond, *condb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002511 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002512 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002513 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002514 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002515 struct wordlist *wl, *wlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002516 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02002517 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01002518 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002519 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002520 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01002521 struct post_deinit_fct *pdf;
Christopher Faulet3ea5cbe2019-07-31 08:44:12 +02002522 struct proxy_deinit_fct *pxdf;
2523 struct server_deinit_fct *srvdf;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002524
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002525 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002526 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02002527 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002528 free(p->id);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002529 free(p->cookie_name);
2530 free(p->cookie_domain);
Christopher Faulet2f533902020-01-21 11:06:48 +01002531 free(p->cookie_attrs);
Willy Tarreau4c03d1c2019-01-14 15:23:54 +01002532 free(p->lbprm.arg_str);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002533 free(p->capture_name);
2534 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09002535 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02002536 if (p->conf.logformat_string != default_http_log_format &&
2537 p->conf.logformat_string != default_tcp_log_format &&
2538 p->conf.logformat_string != clf_http_log_format)
2539 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02002540
Willy Tarreau62a61232013-04-12 18:13:46 +02002541 free(p->conf.lfs_file);
2542 free(p->conf.uniqueid_format_string);
2543 free(p->conf.uif_file);
Willy Tarreau0cac26c2019-01-14 16:55:42 +01002544 if ((p->lbprm.algo & BE_LB_LKUP) == BE_LB_LKUP_MAP)
2545 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002546
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002547 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
2548 free(p->conf.logformat_sd_string);
2549 free(p->conf.lfsd_file);
2550
Willy Tarreaub80c2302007-11-30 20:51:32 +01002551 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
2552 LIST_DEL(&cond->list);
2553 prune_acl_cond(cond);
2554 free(cond);
2555 }
2556
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002557 /* build a list of unique uri_auths */
2558 if (!ua)
2559 ua = p->uri_auth;
2560 else {
2561 /* check if p->uri_auth is unique */
2562 for (uap = ua; uap; uap=uap->next)
2563 if (uap == p->uri_auth)
2564 break;
2565
Willy Tarreauaccc4e12008-06-24 11:14:45 +02002566 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002567 /* add it, if it is */
2568 p->uri_auth->next = ua;
2569 ua = p->uri_auth;
2570 }
2571 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002572
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002573 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
2574 LIST_DEL(&acl->list);
2575 prune_acl(acl);
2576 free(acl);
2577 }
2578
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002579 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
2580 LIST_DEL(&srule->list);
2581 prune_acl_cond(srule->cond);
2582 free(srule->cond);
2583 free(srule);
2584 }
2585
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002586 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
2587 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002588 if (rule->cond) {
2589 prune_acl_cond(rule->cond);
2590 free(rule->cond);
2591 }
Dragan Dosen2a7c20f2019-04-30 00:38:36 +02002592 free(rule->file);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002593 free(rule);
2594 }
2595
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002596 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
2597 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01002598 if (rdr->cond) {
2599 prune_acl_cond(rdr->cond);
2600 free(rdr->cond);
2601 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002602 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01002603 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
2604 LIST_DEL(&lf->list);
2605 free(lf);
2606 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002607 free(rdr);
2608 }
2609
William Lallemand0f99e342011-10-12 17:50:54 +02002610 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
2611 LIST_DEL(&log->list);
2612 free(log);
2613 }
2614
William Lallemand723b73a2012-02-08 16:37:49 +01002615 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
2616 LIST_DEL(&lf->list);
Dragan Dosen61302da2019-04-30 00:40:02 +02002617 release_sample_expr(lf->expr);
2618 free(lf->arg);
William Lallemand723b73a2012-02-08 16:37:49 +01002619 free(lf);
2620 }
2621
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002622 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
2623 LIST_DEL(&lf->list);
Dragan Dosen61302da2019-04-30 00:40:02 +02002624 release_sample_expr(lf->expr);
2625 free(lf->arg);
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002626 free(lf);
2627 }
2628
Christopher Fauletcb550132019-12-17 11:25:46 +01002629 deinit_act_rules(&p->tcp_req.inspect_rules);
2630 deinit_act_rules(&p->tcp_rep.inspect_rules);
2631 deinit_act_rules(&p->tcp_req.l4_rules);
2632 deinit_act_rules(&p->tcp_req.l5_rules);
2633 deinit_act_rules(&p->http_req_rules);
2634 deinit_act_rules(&p->http_res_rules);
Christopher Faulet6d0c3df2020-01-22 09:26:35 +01002635 deinit_act_rules(&p->http_after_res_rules);
Simon Hormanac821422011-07-15 13:14:09 +09002636
Simon Horman6fb82592011-07-15 13:14:11 +09002637 deinit_stick_rules(&p->storersp_rules);
2638 deinit_stick_rules(&p->sticking_rules);
2639
Willy Tarreaubaaee002006-06-26 02:48:02 +02002640 h = p->req_cap;
2641 while (h) {
2642 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002643 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002644 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002645 free(h);
2646 h = h_next;
2647 }/* end while(h) */
2648
2649 h = p->rsp_cap;
2650 while (h) {
2651 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002652 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002653 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002654 free(h);
2655 h = h_next;
2656 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002657
Willy Tarreaubaaee002006-06-26 02:48:02 +02002658 s = p->srv;
2659 while (s) {
2660 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002661
Dragan Dosen026ef572019-04-30 00:56:20 +02002662
Willy Tarreauf6562792019-05-07 19:05:35 +02002663 task_destroy(s->warmup);
Willy Tarreau2e993902011-10-31 11:53:20 +01002664
Willy Tarreaua534fea2008-08-03 12:19:50 +02002665 free(s->id);
2666 free(s->cookie);
Christopher Faulet67957bd2017-09-27 11:00:59 +02002667 free(s->hostname_dn);
Sárközi, László34c01792014-09-05 10:08:23 +02002668 free((char*)s->conf.file);
Olivier Houchard7fc3be72018-11-22 18:50:54 +01002669 free(s->idle_conns);
Olivier Houchard7fc3be72018-11-22 18:50:54 +01002670 free(s->safe_conns);
Olivier Houcharddc2f2752020-02-13 19:12:07 +01002671 free(s->available_conns);
Olivier Houchardf1314812019-02-18 16:41:17 +01002672 free(s->curr_idle_thr);
Willy Tarreau17d45382016-12-22 21:16:08 +01002673
Christopher Fauletf61f33a2020-03-27 18:55:49 +01002674 if (s->use_ssl == 1 || s->check.use_ssl == 1 || (s->proxy->options & PR_O_TCPCHK_SSL)) {
Willy Tarreau17d45382016-12-22 21:16:08 +01002675 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
2676 xprt_get(XPRT_SSL)->destroy_srv(s);
2677 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002678 HA_SPIN_DESTROY(&s->lock);
Christopher Faulet3ea5cbe2019-07-31 08:44:12 +02002679
2680 list_for_each_entry(srvdf, &server_deinit_list, list)
2681 srvdf->fct(s);
2682
Willy Tarreaubaaee002006-06-26 02:48:02 +02002683 free(s);
2684 s = s_next;
2685 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002686
Willy Tarreau4348fad2012-09-20 16:48:07 +02002687 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002688 /*
2689 * Zombie proxy, the listener just pretend to be up
2690 * because they still hold an opened fd.
2691 * Close it and give the listener its real state.
2692 */
2693 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
2694 close(l->fd);
2695 l->state = LI_INIT;
2696 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02002697 unbind_listener(l);
2698 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002699 LIST_DEL(&l->by_fe);
2700 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002701 free(l->name);
2702 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002703 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002704 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002705
Willy Tarreau4348fad2012-09-20 16:48:07 +02002706 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002707 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01002708 if (bind_conf->xprt->destroy_bind_conf)
2709 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002710 free(bind_conf->file);
2711 free(bind_conf->arg);
2712 LIST_DEL(&bind_conf->by_fe);
2713 free(bind_conf);
2714 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02002715
Christopher Fauletd7c91962015-04-30 11:48:27 +02002716 flt_deinit(p);
2717
Christopher Faulet3ea5cbe2019-07-31 08:44:12 +02002718 list_for_each_entry(pxdf, &proxy_deinit_list, list)
2719 pxdf->fct(p);
2720
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002721 free(p->desc);
2722 free(p->fwdfor_hdr_name);
2723
Olivier Houchard3f795f72019-04-17 22:51:06 +02002724 task_destroy(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01002725
Willy Tarreaubafbe012017-11-24 17:34:44 +01002726 pool_destroy(p->req_cap_pool);
2727 pool_destroy(p->rsp_cap_pool);
Dragan Dosen7d61a332019-05-07 14:16:18 +02002728 if (p->table)
2729 pool_destroy(p->table->pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002730
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002731 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002732 p = p->next;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002733 HA_SPIN_DESTROY(&p0->lbprm.lock);
2734 HA_SPIN_DESTROY(&p0->lock);
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002735 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002736 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02002737
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002738 while (ua) {
2739 uap = ua;
2740 ua = ua->next;
2741
Willy Tarreaua534fea2008-08-03 12:19:50 +02002742 free(uap->uri_prefix);
2743 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002744 free(uap->node);
2745 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002746
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002747 userlist_free(uap->userlist);
Christopher Fauletcb550132019-12-17 11:25:46 +01002748 deinit_act_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002749
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002750 free(uap);
2751 }
2752
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002753 userlist_free(userlist);
2754
David Carlier834cb2e2015-09-25 12:02:25 +01002755 cfg_unregister_sections();
2756
Christopher Faulet0132d062017-07-26 15:33:35 +02002757 deinit_log_buffers();
David Carlier834cb2e2015-09-25 12:02:25 +01002758
Willy Tarreaudd815982007-10-16 12:25:14 +02002759 protocol_unbind_all();
2760
Willy Tarreau05554e62016-12-21 20:46:26 +01002761 list_for_each_entry(pdf, &post_deinit_list, list)
2762 pdf->fct();
2763
Joe Williamsdf5b38f2010-12-29 17:05:48 +01002764 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02002765 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002766 free(global.chroot); global.chroot = NULL;
2767 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002768 free(global.node); global.node = NULL;
2769 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002770 free(oldpids); oldpids = NULL;
Olivier Houchard3f795f72019-04-17 22:51:06 +02002771 task_destroy(idle_conn_task);
Olivier Houchard9ea5d362019-02-14 18:29:09 +01002772 idle_conn_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002773
William Lallemand0f99e342011-10-12 17:50:54 +02002774 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
2775 LIST_DEL(&log->list);
2776 free(log);
2777 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01002778 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02002779 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01002780 LIST_DEL(&wl->list);
2781 free(wl);
2782 }
2783
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002784 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
2785 if (bol->must_free)
2786 free((void *)bol->str);
2787 LIST_DEL(&bol->list);
2788 free(bol);
2789 }
2790
Christopher Fauletff2613e2016-11-09 11:36:17 +01002791 vars_prune(&global.vars, NULL, NULL);
Willy Tarreau2455ceb2018-11-26 15:57:34 +01002792 pool_destroy_all();
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002793 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002794} /* end deinit() */
2795
William Lallemand72160322018-11-06 17:37:16 +01002796
Willy Tarreau918ff602011-07-25 16:33:49 +02002797/* Runs the polling loop */
Willy Tarreau3ebd55e2020-03-03 14:59:56 +01002798void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02002799{
Willy Tarreau2ae84e42019-05-28 16:44:05 +02002800 int next, wake;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002801
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002802 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002803 while (1) {
Willy Tarreauc49ba522019-12-11 08:12:23 +01002804 wake_expired_tasks();
2805
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002806 /* Process a few tasks */
2807 process_runnable_tasks();
2808
William Lallemand1aab50b2018-06-07 09:46:01 +02002809 /* check if we caught some signals and process them in the
2810 first thread */
2811 if (tid == 0)
2812 signal_process_queue();
Willy Tarreau29857942009-05-10 09:01:21 +02002813
Willy Tarreau7067b3a2019-06-02 11:11:29 +02002814 /* also stop if we failed to cleanly stop all tasks */
2815 if (killed > 1)
2816 break;
2817
Willy Tarreau10146c92015-04-13 20:44:19 +02002818 /* expire immediately if events are pending */
Willy Tarreau2ae84e42019-05-28 16:44:05 +02002819 wake = 1;
Olivier Houchard305d5ab2019-07-24 18:07:06 +02002820 if (thread_has_tasks())
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002821 activity[tid].wake_tasks++;
William Lallemand1aab50b2018-06-07 09:46:01 +02002822 else if (signal_queue_len && tid == 0)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002823 activity[tid].wake_signal++;
Olivier Houchard79321b92018-07-26 17:55:11 +02002824 else {
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002825 _HA_ATOMIC_OR(&sleeping_thread_mask, tid_bit);
2826 __ha_barrier_atomic_store();
Willy Tarreau95abd5b2020-03-23 09:33:32 +01002827 if (thread_has_tasks()) {
Olivier Houchard79321b92018-07-26 17:55:11 +02002828 activity[tid].wake_tasks++;
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002829 _HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Olivier Houchard79321b92018-07-26 17:55:11 +02002830 } else
Willy Tarreau2ae84e42019-05-28 16:44:05 +02002831 wake = 0;
Olivier Houchard79321b92018-07-26 17:55:11 +02002832 }
Willy Tarreau10146c92015-04-13 20:44:19 +02002833
Willy Tarreau4f46a352020-03-23 09:27:28 +01002834 if (!wake) {
2835 if (stopping)
2836 _HA_ATOMIC_OR(&stopping_thread_mask, tid_bit);
2837
2838 /* stop when there's nothing left to do */
2839 if ((jobs - unstoppable_jobs) == 0 &&
2840 (stopping_thread_mask & all_threads_mask) == all_threads_mask)
2841 break;
2842 }
2843
Willy Tarreauc49ba522019-12-11 08:12:23 +01002844 /* If we have to sleep, measure how long */
2845 next = wake ? TICK_ETERNITY : next_timer_expiry();
2846
Willy Tarreau58b458d2008-06-29 22:40:23 +02002847 /* The poller will ensure it returns around <next> */
Willy Tarreau2ae84e42019-05-28 16:44:05 +02002848 cur_poller.poll(&cur_poller, next, wake);
Emeric Brun64cc49c2017-10-03 14:46:45 +02002849
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002850 activity[tid].loops++;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002851 }
2852}
2853
Christopher Faulet1d17c102017-08-29 15:38:48 +02002854static void *run_thread_poll_loop(void *data)
2855{
Willy Tarreau082b6282019-05-22 14:42:12 +02002856 struct per_thread_alloc_fct *ptaf;
Christopher Faulet1d17c102017-08-29 15:38:48 +02002857 struct per_thread_init_fct *ptif;
2858 struct per_thread_deinit_fct *ptdf;
Willy Tarreau082b6282019-05-22 14:42:12 +02002859 struct per_thread_free_fct *ptff;
Willy Tarreau34a150c2019-06-11 09:16:41 +02002860 static int init_left = 0;
2861 __decl_hathreads(static pthread_mutex_t init_mutex = PTHREAD_MUTEX_INITIALIZER);
2862 __decl_hathreads(static pthread_cond_t init_cond = PTHREAD_COND_INITIALIZER);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002863
Willy Tarreaub4f7cc32019-05-03 09:27:30 +02002864 ha_set_tid((unsigned long)data);
Willy Tarreaud022e9c2019-09-24 08:25:15 +02002865 sched = &task_per_thread[tid];
Willy Tarreau91e6df02019-05-03 17:21:18 +02002866
Willy Tarreauf6178242019-05-21 19:46:58 +02002867#if (_POSIX_TIMERS > 0) && defined(_POSIX_THREAD_CPUTIME)
Willy Tarreau91e6df02019-05-03 17:21:18 +02002868#ifdef USE_THREAD
Willy Tarreau8323a372019-05-20 18:57:53 +02002869 pthread_getcpuclockid(pthread_self(), &ti->clock_id);
Willy Tarreau624dcbf2019-05-20 20:23:06 +02002870#else
Willy Tarreau8323a372019-05-20 18:57:53 +02002871 ti->clock_id = CLOCK_THREAD_CPUTIME_ID;
Willy Tarreau91e6df02019-05-03 17:21:18 +02002872#endif
Willy Tarreau663fda42019-05-21 15:14:08 +02002873#endif
Willy Tarreau6ec902a2019-06-07 14:41:11 +02002874 /* Now, initialize one thread init at a time. This is better since
2875 * some init code is a bit tricky and may release global resources
2876 * after reallocating them locally. This will also ensure there is
2877 * no race on file descriptors allocation.
2878 */
Willy Tarreau34a150c2019-06-11 09:16:41 +02002879#ifdef USE_THREAD
2880 pthread_mutex_lock(&init_mutex);
2881#endif
2882 /* The first thread must set the number of threads left */
2883 if (!init_left)
2884 init_left = global.nbthread;
2885 init_left--;
Willy Tarreau91e6df02019-05-03 17:21:18 +02002886
Christopher Faulet1d17c102017-08-29 15:38:48 +02002887 tv_update_date(-1,-1);
2888
Willy Tarreau082b6282019-05-22 14:42:12 +02002889 /* per-thread alloc calls performed here are not allowed to snoop on
2890 * other threads, so they are free to initialize at their own rhythm
2891 * as long as they act as if they were alone. None of them may rely
2892 * on resources initialized by the other ones.
2893 */
2894 list_for_each_entry(ptaf, &per_thread_alloc_list, list) {
2895 if (!ptaf->fct()) {
2896 ha_alert("failed to allocate resources for thread %u.\n", tid);
2897 exit(1);
2898 }
2899 }
2900
Willy Tarreau3078e9f2019-05-20 10:50:43 +02002901 /* per-thread init calls performed here are not allowed to snoop on
2902 * other threads, so they are free to initialize at their own rhythm
2903 * as long as they act as if they were alone.
2904 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02002905 list_for_each_entry(ptif, &per_thread_init_list, list) {
2906 if (!ptif->fct()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002907 ha_alert("failed to initialize thread %u.\n", tid);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002908 exit(1);
2909 }
2910 }
2911
Willy Tarreau71092822019-06-10 09:51:04 +02002912 /* enabling protocols will result in fd_insert() calls to be performed,
2913 * we want all threads to have already allocated their local fd tables
Willy Tarreau34a150c2019-06-11 09:16:41 +02002914 * before doing so, thus only the last thread does it.
Willy Tarreau71092822019-06-10 09:51:04 +02002915 */
Willy Tarreau34a150c2019-06-11 09:16:41 +02002916 if (init_left == 0)
Willy Tarreaue4d7c9d2019-06-10 10:14:52 +02002917 protocol_enable_all();
Willy Tarreau6ec902a2019-06-07 14:41:11 +02002918
Willy Tarreau34a150c2019-06-11 09:16:41 +02002919#ifdef USE_THREAD
2920 pthread_cond_broadcast(&init_cond);
2921 pthread_mutex_unlock(&init_mutex);
2922
2923 /* now wait for other threads to finish starting */
2924 pthread_mutex_lock(&init_mutex);
2925 while (init_left)
2926 pthread_cond_wait(&init_cond, &init_mutex);
2927 pthread_mutex_unlock(&init_mutex);
2928#endif
Willy Tarreau3078e9f2019-05-20 10:50:43 +02002929
Willy Tarreaua45a8b52019-12-06 16:31:45 +01002930#if defined(PR_SET_NO_NEW_PRIVS) && defined(USE_PRCTL)
2931 /* Let's refrain from using setuid executables. This way the impact of
2932 * an eventual vulnerability in a library remains limited. It may
2933 * impact external checks but who cares about them anyway ? In the
2934 * worst case it's possible to disable the option. Obviously we do this
2935 * in workers only. We can't hard-fail on this one as it really is
2936 * implementation dependent though we're interested in feedback, hence
2937 * the warning.
2938 */
2939 if (!(global.tune.options & GTUNE_INSECURE_SETUID) && !master) {
2940 static int warn_fail;
2941 if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) == -1 && !_HA_ATOMIC_XADD(&warn_fail, 1)) {
2942 ha_warning("Failed to disable setuid, please report to developers with detailed "
2943 "information about your operating system. You can silence this warning "
2944 "by adding 'insecure-setuid-wanted' in the 'global' section.\n");
2945 }
2946 }
2947#endif
2948
Willy Tarreaud96f1122019-12-03 07:07:36 +01002949#if defined(RLIMIT_NPROC)
2950 /* all threads have started, it's now time to prevent any new thread
2951 * or process from starting. Obviously we do this in workers only. We
2952 * can't hard-fail on this one as it really is implementation dependent
2953 * though we're interested in feedback, hence the warning.
2954 */
2955 if (!(global.tune.options & GTUNE_INSECURE_FORK) && !master) {
2956 struct rlimit limit = { .rlim_cur = 0, .rlim_max = 0 };
2957 static int warn_fail;
2958
2959 if (setrlimit(RLIMIT_NPROC, &limit) == -1 && !_HA_ATOMIC_XADD(&warn_fail, 1)) {
2960 ha_warning("Failed to disable forks, please report to developers with detailed "
2961 "information about your operating system. You can silence this warning "
2962 "by adding 'insecure-fork-wanted' in the 'global' section.\n");
2963 }
2964 }
2965#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02002966 run_poll_loop();
2967
2968 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
2969 ptdf->fct();
2970
Willy Tarreau082b6282019-05-22 14:42:12 +02002971 list_for_each_entry(ptff, &per_thread_free_list, list)
2972 ptff->fct();
2973
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002974#ifdef USE_THREAD
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002975 _HA_ATOMIC_AND(&all_threads_mask, ~tid_bit);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002976 if (tid > 0)
2977 pthread_exit(NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002978#endif
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002979 return NULL;
2980}
Christopher Faulet1d17c102017-08-29 15:38:48 +02002981
William Dauchyf9af9d72019-11-17 15:47:16 +01002982/* set uid/gid depending on global settings */
2983static void set_identity(const char *program_name)
2984{
2985 if (global.gid) {
2986 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
2987 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2988 " without 'uid'/'user' is generally useless.\n", program_name);
2989
2990 if (setgid(global.gid) == -1) {
2991 ha_alert("[%s.main()] Cannot set gid %d.\n", program_name, global.gid);
2992 protocol_unbind_all();
2993 exit(1);
2994 }
2995 }
2996
2997 if (global.uid && setuid(global.uid) == -1) {
2998 ha_alert("[%s.main()] Cannot set uid %d.\n", program_name, global.uid);
2999 protocol_unbind_all();
3000 exit(1);
3001 }
3002}
3003
Willy Tarreaubaaee002006-06-26 02:48:02 +02003004int main(int argc, char **argv)
3005{
3006 int err, retry;
3007 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02003008 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02003009 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003010
Olivier Houchard5fa300d2018-02-03 15:15:21 +01003011 setvbuf(stdout, NULL, _IONBF, 0);
Willy Tarreau5794fb02018-11-25 18:43:29 +01003012
Willy Tarreauff9c9142019-02-07 10:39:36 +01003013 /* this can only safely be done here, though it's optimized away by
3014 * the compiler.
3015 */
3016 if (MAX_PROCS < 1 || MAX_PROCS > LONGBITS) {
3017 ha_alert("MAX_PROCS value must be between 1 and %d inclusive; "
3018 "HAProxy was built with value %d, please fix it and rebuild.\n",
3019 LONGBITS, MAX_PROCS);
3020 exit(1);
3021 }
3022
Willy Tarreaubf696402019-03-01 10:09:28 +01003023 /* take a copy of initial limits before we possibly change them */
3024 getrlimit(RLIMIT_NOFILE, &limit);
3025 rlim_fd_cur_at_boot = limit.rlim_cur;
3026 rlim_fd_max_at_boot = limit.rlim_max;
3027
Willy Tarreau5794fb02018-11-25 18:43:29 +01003028 /* process all initcalls in order of potential dependency */
3029 RUN_INITCALLS(STG_PREPARE);
3030 RUN_INITCALLS(STG_LOCK);
3031 RUN_INITCALLS(STG_ALLOC);
3032 RUN_INITCALLS(STG_POOL);
3033 RUN_INITCALLS(STG_REGISTER);
3034 RUN_INITCALLS(STG_INIT);
3035
Emeric Bruncf20bf12010-10-22 16:06:11 +02003036 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02003037 signal_register_fct(SIGQUIT, dump, SIGQUIT);
3038 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
3039 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
William Lallemand73b85e72017-06-01 17:38:51 +02003040 signal_register_fct(SIGUSR2, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003041
Willy Tarreaue437c442010-03-17 18:02:46 +01003042 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
3043 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
3044 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02003045 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02003046 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003047
Willy Tarreaudc23a922011-02-16 11:10:36 +01003048 /* ulimits */
3049 if (!global.rlimit_nofile)
3050 global.rlimit_nofile = global.maxsock;
3051
3052 if (global.rlimit_nofile) {
Willy Tarreaue5cfdac2019-03-01 10:32:05 +01003053 limit.rlim_cur = global.rlimit_nofile;
3054 limit.rlim_max = MAX(rlim_fd_max_at_boot, limit.rlim_cur);
3055
Willy Tarreaudc23a922011-02-16 11:10:36 +01003056 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02003057 getrlimit(RLIMIT_NOFILE, &limit);
William Dauchy0fec3ab2019-10-27 20:08:11 +01003058 if (global.tune.options & GTUNE_STRICT_LIMITS) {
3059 ha_alert("[%s.main()] Cannot raise FD limit to %d, limit is %d.\n",
3060 argv[0], global.rlimit_nofile, (int)limit.rlim_cur);
3061 if (!(global.mode & MODE_MWORKER))
3062 exit(1);
3063 }
3064 else {
3065 /* try to set it to the max possible at least */
3066 limit.rlim_cur = limit.rlim_max;
3067 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
3068 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02003069
William Dauchy0fec3ab2019-10-27 20:08:11 +01003070 ha_warning("[%s.main()] Cannot raise FD limit to %d, limit is %d. "
3071 "This will fail in >= v2.3\n",
3072 argv[0], global.rlimit_nofile, (int)limit.rlim_cur);
3073 global.rlimit_nofile = limit.rlim_cur;
3074 }
Willy Tarreaudc23a922011-02-16 11:10:36 +01003075 }
3076 }
3077
3078 if (global.rlimit_memmax) {
3079 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01003080 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01003081#ifdef RLIMIT_AS
3082 if (setrlimit(RLIMIT_AS, &limit) == -1) {
William Dauchy0fec3ab2019-10-27 20:08:11 +01003083 if (global.tune.options & GTUNE_STRICT_LIMITS) {
3084 ha_alert("[%s.main()] Cannot fix MEM limit to %d megs.\n",
3085 argv[0], global.rlimit_memmax);
3086 if (!(global.mode & MODE_MWORKER))
3087 exit(1);
3088 }
3089 else
3090 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs."
3091 "This will fail in >= v2.3\n",
3092 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01003093 }
3094#else
3095 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
William Dauchy0fec3ab2019-10-27 20:08:11 +01003096 if (global.tune.options & GTUNE_STRICT_LIMITS) {
3097 ha_alert("[%s.main()] Cannot fix MEM limit to %d megs.\n",
3098 argv[0], global.rlimit_memmax);
3099 if (!(global.mode & MODE_MWORKER))
3100 exit(1);
3101 }
3102 else
3103 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.",
3104 "This will fail in >= v2.3\n",
3105 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01003106 }
3107#endif
3108 }
3109
Olivier Houchardf73629d2017-04-05 22:33:04 +02003110 if (old_unixsocket) {
William Lallemand85b0bd92017-06-01 17:38:53 +02003111 if (strcmp("/dev/null", old_unixsocket) != 0) {
3112 if (get_old_sockets(old_unixsocket) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003113 ha_alert("Failed to get the sockets from the old process!\n");
William Lallemand85b0bd92017-06-01 17:38:53 +02003114 if (!(global.mode & MODE_MWORKER))
3115 exit(1);
3116 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02003117 }
3118 }
William Lallemand85b0bd92017-06-01 17:38:53 +02003119 get_cur_unixsocket();
3120
Willy Tarreaubaaee002006-06-26 02:48:02 +02003121 /* We will loop at most 100 times with 10 ms delay each time.
3122 * That's at most 1 second. We only send a signal to old pids
3123 * if we cannot grab at least one port.
3124 */
3125 retry = MAX_START_RETRIES;
3126 err = ERR_NONE;
3127 while (retry >= 0) {
3128 struct timeval w;
3129 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01003130 /* exit the loop on no error or fatal error */
3131 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02003132 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02003133 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02003134 break;
3135
3136 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
3137 * listening sockets. So on those platforms, it would be wiser to
3138 * simply send SIGUSR1, which will not be undoable.
3139 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02003140 if (tell_old_pids(SIGTTOU) == 0) {
3141 /* no need to wait if we can't contact old pids */
3142 retry = 0;
3143 continue;
3144 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02003145 /* give some time to old processes to stop listening */
3146 w.tv_sec = 0;
3147 w.tv_usec = 10*1000;
3148 select(0, NULL, NULL, NULL, &w);
3149 retry--;
3150 }
3151
3152 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01003153 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02003154 if (retry != MAX_START_RETRIES && nb_oldpids) {
3155 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003156 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02003157 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02003158 exit(1);
3159 }
3160
William Lallemand944e6192018-11-21 15:48:31 +01003161 if (!(global.mode & MODE_MWORKER_WAIT) && listeners == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003162 ha_alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003163 /* Note: we don't have to send anything to the old pids because we
3164 * never stopped them. */
3165 exit(1);
3166 }
3167
Emeric Bruncf20bf12010-10-22 16:06:11 +02003168 err = protocol_bind_all(errmsg, sizeof(errmsg));
3169 if ((err & ~ERR_WARN) != ERR_NONE) {
3170 if ((err & ERR_ALERT) || (err & ERR_WARN))
Christopher Faulet767a84b2017-11-24 16:50:31 +01003171 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Emeric Bruncf20bf12010-10-22 16:06:11 +02003172
Christopher Faulet767a84b2017-11-24 16:50:31 +01003173 ha_alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02003174 protocol_unbind_all(); /* cleanup everything we can */
3175 if (nb_oldpids)
3176 tell_old_pids(SIGTTIN);
3177 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02003178 } else if (err & ERR_WARN) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003179 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02003180 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02003181 /* Ok, all listener should now be bound, close any leftover sockets
3182 * the previous process gave us, we don't need them anymore
3183 */
3184 while (xfer_sock_list != NULL) {
3185 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
3186 close(xfer_sock_list->fd);
3187 free(xfer_sock_list->iface);
3188 free(xfer_sock_list->namespace);
3189 free(xfer_sock_list);
3190 xfer_sock_list = tmpxfer;
3191 }
Willy Tarreaudd815982007-10-16 12:25:14 +02003192
Willy Tarreaubaaee002006-06-26 02:48:02 +02003193 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02003194 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
3195 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003196
Willy Tarreaubaaee002006-06-26 02:48:02 +02003197 /* MODE_QUIET can inhibit alerts and warnings below this line */
3198
PiBa-NL149a81a2017-12-25 21:03:31 +01003199 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL) {
3200 /* either stdin/out/err are already closed or should stay as they are. */
3201 if ((global.mode & MODE_DAEMON)) {
3202 /* daemon mode re-executing, stdin/stdout/stderr are already closed so keep quiet */
3203 global.mode &= ~MODE_VERBOSE;
3204 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
3205 }
3206 } else {
3207 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
3208 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01003209 stdio_quiet(-1);
PiBa-NL149a81a2017-12-25 21:03:31 +01003210 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02003211 }
3212
3213 /* open log & pid files before the chroot */
William Lallemand80293002017-11-06 11:00:03 +01003214 if ((global.mode & MODE_DAEMON || global.mode & MODE_MWORKER) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02003215 unlink(global.pidfile);
3216 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
3217 if (pidfd < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003218 ha_alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003219 if (nb_oldpids)
3220 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02003221 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02003222 exit(1);
3223 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02003224 }
3225
Willy Tarreaub38651a2007-03-24 17:24:39 +01003226 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003227 ha_alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
3228 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02003229 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01003230 exit(1);
3231 }
3232
Willy Tarreau4e30ed72009-02-04 18:02:48 +01003233 /* If the user is not root, we'll still let him try the configuration
3234 * but we inform him that unexpected behaviour may occur.
3235 */
3236 if ((global.last_checks & LSTCHK_NETADM) && getuid())
Christopher Faulet767a84b2017-11-24 16:50:31 +01003237 ha_warning("[%s.main()] Some options which require full privileges"
3238 " might not work well.\n"
3239 "", argv[0]);
Willy Tarreau4e30ed72009-02-04 18:02:48 +01003240
William Lallemand095ba4c2017-06-01 17:38:50 +02003241 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
3242
3243 /* chroot if needed */
3244 if (global.chroot != NULL) {
3245 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003246 ha_alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02003247 if (nb_oldpids)
3248 tell_old_pids(SIGTTIN);
3249 protocol_unbind_all();
3250 exit(1);
3251 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02003252 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02003253 }
3254
William Lallemand944e6192018-11-21 15:48:31 +01003255 if (nb_oldpids && !(global.mode & MODE_MWORKER_WAIT))
Willy Tarreaubb545b42010-08-25 12:58:59 +02003256 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003257
William Lallemand27edc4b2019-05-07 17:49:33 +02003258 /* send a SIGTERM to workers who have a too high reloads number */
3259 if ((global.mode & MODE_MWORKER) && !(global.mode & MODE_MWORKER_WAIT))
3260 mworker_kill_max_reloads(SIGTERM);
3261
William Lallemand8a361b52017-06-20 11:20:33 +02003262 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
3263 nb_oldpids = 0;
3264 free(oldpids);
3265 oldpids = NULL;
3266 }
3267
3268
Willy Tarreaubaaee002006-06-26 02:48:02 +02003269 /* Note that any error at this stage will be fatal because we will not
3270 * be able to restart the old pids.
3271 */
3272
William Dauchyf9af9d72019-11-17 15:47:16 +01003273 if ((global.mode & (MODE_MWORKER | MODE_DAEMON)) == 0)
3274 set_identity(argv[0]);
Willy Tarreau636848a2019-04-15 19:38:50 +02003275
Willy Tarreaubaaee002006-06-26 02:48:02 +02003276 /* check ulimits */
3277 limit.rlim_cur = limit.rlim_max = 0;
3278 getrlimit(RLIMIT_NOFILE, &limit);
3279 if (limit.rlim_cur < global.maxsock) {
William Dauchy0fec3ab2019-10-27 20:08:11 +01003280 if (global.tune.options & GTUNE_STRICT_LIMITS) {
3281 ha_alert("[%s.main()] FD limit (%d) too low for maxconn=%d/maxsock=%d. "
3282 "Please raise 'ulimit-n' to %d or more to avoid any trouble.\n",
3283 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock,
3284 global.maxsock);
3285 if (!(global.mode & MODE_MWORKER))
3286 exit(1);
3287 }
3288 else
3289 ha_alert("[%s.main()] FD limit (%d) too low for maxconn=%d/maxsock=%d. "
3290 "Please raise 'ulimit-n' to %d or more to avoid any trouble."
3291 "This will fail in >= v2.3\n",
3292 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock,
3293 global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003294 }
3295
William Lallemand944e6192018-11-21 15:48:31 +01003296 if (global.mode & (MODE_DAEMON | MODE_MWORKER | MODE_MWORKER_WAIT)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003297 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003298 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003299 int ret = 0;
3300 int proc;
William Lallemande1340412017-12-28 16:09:36 +01003301 int devnullfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003302
William Lallemand095ba4c2017-06-01 17:38:50 +02003303 /*
3304 * if daemon + mworker: must fork here to let a master
3305 * process live in background before forking children
3306 */
William Lallemand73b85e72017-06-01 17:38:51 +02003307
3308 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)
3309 && (global.mode & MODE_MWORKER)
3310 && (global.mode & MODE_DAEMON)) {
William Lallemand095ba4c2017-06-01 17:38:50 +02003311 ret = fork();
3312 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003313 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02003314 protocol_unbind_all();
3315 exit(1); /* there has been an error */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003316 } else if (ret > 0) { /* parent leave to daemonize */
William Lallemand095ba4c2017-06-01 17:38:50 +02003317 exit(0);
William Lallemandbfd8eb52018-07-04 15:31:23 +02003318 } else /* change the process group ID in the child (master process) */
3319 setsid();
William Lallemand095ba4c2017-06-01 17:38:50 +02003320 }
William Lallemande20b6a62017-06-01 17:38:55 +02003321
William Lallemande20b6a62017-06-01 17:38:55 +02003322
William Lallemanddeed7802017-11-06 11:00:04 +01003323 /* if in master-worker mode, write the PID of the father */
3324 if (global.mode & MODE_MWORKER) {
3325 char pidstr[100];
Willy Tarreau76a80c72019-06-22 07:41:38 +02003326 snprintf(pidstr, sizeof(pidstr), "%d\n", (int)getpid());
Willy Tarreau46ec48b2018-01-23 19:20:19 +01003327 if (pidfd >= 0)
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01003328 DISGUISE(write(pidfd, pidstr, strlen(pidstr)));
William Lallemanddeed7802017-11-06 11:00:04 +01003329 }
3330
Willy Tarreaubaaee002006-06-26 02:48:02 +02003331 /* the father launches the required number of processes */
William Lallemand944e6192018-11-21 15:48:31 +01003332 if (!(global.mode & MODE_MWORKER_WAIT)) {
William Lallemand9a1ee7a2019-04-01 11:30:02 +02003333 if (global.mode & MODE_MWORKER)
3334 mworker_ext_launch_all();
William Lallemand944e6192018-11-21 15:48:31 +01003335 for (proc = 0; proc < global.nbproc; proc++) {
3336 ret = fork();
3337 if (ret < 0) {
3338 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
3339 protocol_unbind_all();
3340 exit(1); /* there has been an error */
3341 }
Willy Tarreau52bf8392020-03-08 00:42:37 +01003342 else if (ret == 0) { /* child breaks here */
3343 ha_random_jump96(relative_pid);
William Lallemand944e6192018-11-21 15:48:31 +01003344 break;
Willy Tarreau52bf8392020-03-08 00:42:37 +01003345 }
William Lallemand944e6192018-11-21 15:48:31 +01003346 if (pidfd >= 0 && !(global.mode & MODE_MWORKER)) {
3347 char pidstr[100];
3348 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01003349 DISGUISE(write(pidfd, pidstr, strlen(pidstr)));
William Lallemand944e6192018-11-21 15:48:31 +01003350 }
3351 if (global.mode & MODE_MWORKER) {
3352 struct mworker_proc *child;
William Lallemandce83b4a2018-10-26 14:47:30 +02003353
William Lallemand220567e2018-11-21 18:04:53 +01003354 ha_notice("New worker #%d (%d) forked\n", relative_pid, ret);
William Lallemand944e6192018-11-21 15:48:31 +01003355 /* find the right mworker_proc */
3356 list_for_each_entry(child, &proc_list, list) {
3357 if (child->relative_pid == relative_pid &&
William Lallemand8f7069a2019-04-12 16:09:23 +02003358 child->reloads == 0 && child->options & PROC_O_TYPE_WORKER) {
William Lallemand944e6192018-11-21 15:48:31 +01003359 child->timestamp = now.tv_sec;
3360 child->pid = ret;
William Lallemand1dc69632019-06-12 19:11:33 +02003361 child->version = strdup(haproxy_version);
William Lallemand944e6192018-11-21 15:48:31 +01003362 break;
3363 }
William Lallemandce83b4a2018-10-26 14:47:30 +02003364 }
3365 }
William Lallemandbc193052018-09-11 10:06:26 +02003366
William Lallemand944e6192018-11-21 15:48:31 +01003367 relative_pid++; /* each child will get a different one */
3368 pid_bit <<= 1;
3369 }
3370 } else {
3371 /* wait mode */
3372 global.nbproc = 1;
3373 proc = 1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003374 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003375
3376#ifdef USE_CPU_AFFINITY
3377 if (proc < global.nbproc && /* child */
Willy Tarreauff9c9142019-02-07 10:39:36 +01003378 proc < MAX_PROCS && /* only the first 32/64 processes may be pinned */
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003379 global.cpu_map.proc[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003380#ifdef __FreeBSD__
Olivier Houchard97148f62017-08-16 17:29:11 +02003381 {
3382 cpuset_t cpuset;
3383 int i;
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003384 unsigned long cpu_map = global.cpu_map.proc[proc];
Olivier Houchard97148f62017-08-16 17:29:11 +02003385
3386 CPU_ZERO(&cpuset);
3387 while ((i = ffsl(cpu_map)) > 0) {
3388 CPU_SET(i - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003389 cpu_map &= ~(1UL << (i - 1));
Olivier Houchard97148f62017-08-16 17:29:11 +02003390 }
3391 ret = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset), &cpuset);
3392 }
David Carlier5e4c8e22019-09-13 05:12:58 +01003393#elif defined(__linux__)
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003394 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map.proc[proc]);
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003395#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003396#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02003397 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02003398 if (pidfd >= 0) {
3399 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
3400 close(pidfd);
3401 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02003402
3403 /* We won't ever use this anymore */
Willy Tarreaud137dd32010-08-25 12:49:05 +02003404 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003405
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003406 if (proc == global.nbproc) {
William Lallemand944e6192018-11-21 15:48:31 +01003407 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003408
3409 if ((!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
3410 (global.mode & MODE_DAEMON)) {
3411 /* detach from the tty, this is required to properly daemonize. */
William Lallemande1340412017-12-28 16:09:36 +01003412 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL))
3413 stdio_quiet(-1);
3414
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003415 global.mode &= ~MODE_VERBOSE;
3416 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003417 }
3418
William Lallemandb3f2be32018-09-11 10:06:18 +02003419 mworker_loop();
William Lallemand1499b9b2017-06-07 15:04:47 +02003420 /* should never get there */
3421 exit(EXIT_FAILURE);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003422 }
William Lallemandcf4e4962017-06-08 19:05:48 +02003423#if defined(USE_OPENSSL) && !defined(OPENSSL_NO_DH)
Grant Zhang872f9c22017-01-21 01:10:18 +00003424 ssl_free_dh();
3425#endif
William Lallemand1499b9b2017-06-07 15:04:47 +02003426 exit(0); /* parent must leave */
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003427 }
3428
William Lallemandcb11fd22017-06-01 17:38:52 +02003429 /* child must never use the atexit function */
3430 atexit_flag = 0;
3431
William Lallemandbc193052018-09-11 10:06:26 +02003432 /* close useless master sockets */
3433 if (global.mode & MODE_MWORKER) {
3434 struct mworker_proc *child, *it;
3435 master = 0;
3436
William Lallemand309dc9a2018-10-26 14:47:45 +02003437 mworker_cli_proxy_stop();
3438
William Lallemandbc193052018-09-11 10:06:26 +02003439 /* free proc struct of other processes */
3440 list_for_each_entry_safe(child, it, &proc_list, list) {
William Lallemandce83b4a2018-10-26 14:47:30 +02003441 /* close the FD of the master side for all
3442 * workers, we don't need to close the worker
3443 * side of other workers since it's done with
3444 * the bind_proc */
Tim Duesterhus742e0f92018-11-25 20:03:39 +01003445 if (child->ipc_fd[0] >= 0)
3446 close(child->ipc_fd[0]);
William Lallemandce83b4a2018-10-26 14:47:30 +02003447 if (child->relative_pid == relative_pid &&
3448 child->reloads == 0) {
3449 /* keep this struct if this is our pid */
3450 proc_self = child;
William Lallemandbc193052018-09-11 10:06:26 +02003451 continue;
William Lallemandce83b4a2018-10-26 14:47:30 +02003452 }
William Lallemandbc193052018-09-11 10:06:26 +02003453 LIST_DEL(&child->list);
Tim Duesterhus9b7a9762019-05-16 20:23:22 +02003454 mworker_free_child(child);
3455 child = NULL;
William Lallemandbc193052018-09-11 10:06:26 +02003456 }
3457 }
Willy Tarreau1605c7a2018-01-23 19:01:49 +01003458
William Lallemande1340412017-12-28 16:09:36 +01003459 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
3460 devnullfd = open("/dev/null", O_RDWR, 0);
3461 if (devnullfd < 0) {
3462 ha_alert("Cannot open /dev/null\n");
3463 exit(EXIT_FAILURE);
3464 }
3465 }
3466
William Lallemand095ba4c2017-06-01 17:38:50 +02003467 /* Must chroot and setgid/setuid in the children */
3468 /* chroot if needed */
3469 if (global.chroot != NULL) {
3470 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003471 ha_alert("[%s.main()] Cannot chroot1(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02003472 if (nb_oldpids)
3473 tell_old_pids(SIGTTIN);
3474 protocol_unbind_all();
3475 exit(1);
3476 }
3477 }
3478
3479 free(global.chroot);
3480 global.chroot = NULL;
William Dauchyf9af9d72019-11-17 15:47:16 +01003481 set_identity(argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02003482
William Lallemand7f80eb22017-05-26 18:19:55 +02003483 /* pass through every cli socket, and check if it's bound to
3484 * the current process and if it exposes listeners sockets.
3485 * Caution: the GTUNE_SOCKET_TRANSFER is now set after the fork.
3486 * */
3487
3488 if (global.stats_fe) {
3489 struct bind_conf *bind_conf;
3490
3491 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
3492 if (bind_conf->level & ACCESS_FD_LISTENERS) {
3493 if (!bind_conf->bind_proc || bind_conf->bind_proc & (1UL << proc)) {
3494 global.tune.options |= GTUNE_SOCKET_TRANSFER;
3495 break;
3496 }
3497 }
3498 }
3499 }
3500
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003501 /* we might have to unbind some proxies from some processes */
Olivier Houchardfbc74e82017-11-24 16:54:05 +01003502 px = proxies_list;
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003503 while (px != NULL) {
3504 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02003505 if (!(px->bind_proc & (1UL << proc))) {
3506 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
3507 zombify_proxy(px);
3508 else
3509 stop_proxy(px);
3510 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003511 }
3512 px = px->next;
3513 }
3514
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003515 /* we might have to unbind some peers sections from some processes */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02003516 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003517 if (!curpeers->peers_fe)
3518 continue;
3519
3520 if (curpeers->peers_fe->bind_proc & (1UL << proc))
3521 continue;
3522
3523 stop_proxy(curpeers->peers_fe);
3524 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02003525 signal_unregister_handler(curpeers->sighandler);
Olivier Houchard3f795f72019-04-17 22:51:06 +02003526 task_destroy(curpeers->sync_task);
Willy Tarreau47c8c022015-09-28 16:39:25 +02003527 curpeers->sync_task = NULL;
Olivier Houchard3f795f72019-04-17 22:51:06 +02003528 task_destroy(curpeers->peers_fe->task);
Willy Tarreau47c8c022015-09-28 16:39:25 +02003529 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003530 curpeers->peers_fe = NULL;
3531 }
3532
William Lallemand2e8fad92018-11-13 16:18:23 +01003533 /*
3534 * This is only done in daemon mode because we might want the
3535 * logs on stdout in mworker mode. If we're NOT in QUIET mode,
3536 * we should now close the 3 first FDs to ensure that we can
3537 * detach from the TTY. We MUST NOT do it in other cases since
3538 * it would have already be done, and 0-2 would have been
3539 * affected to listening sockets
Willy Tarreaubaaee002006-06-26 02:48:02 +02003540 */
William Lallemand2e8fad92018-11-13 16:18:23 +01003541 if ((global.mode & MODE_DAEMON) &&
3542 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02003543 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01003544 stdio_quiet(devnullfd);
Willy Tarreau106cb762008-11-16 07:40:34 +01003545 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003546 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
3547 }
3548 pid = getpid(); /* update child's pid */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003549 if (!(global.mode & MODE_MWORKER)) /* in mworker mode we don't want a new pgid for the children */
3550 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02003551 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02003552 }
3553
William Dauchye039f262019-11-17 15:47:15 +01003554 /* try our best to re-enable core dumps depending on system capabilities.
3555 * What is addressed here :
3556 * - remove file size limits
3557 * - remove core size limits
3558 * - mark the process dumpable again if it lost it due to user/group
3559 */
3560 if (global.tune.options & GTUNE_SET_DUMPABLE) {
3561 limit.rlim_cur = limit.rlim_max = RLIM_INFINITY;
3562
3563#if defined(RLIMIT_FSIZE)
3564 if (setrlimit(RLIMIT_FSIZE, &limit) == -1) {
3565 if (global.tune.options & GTUNE_STRICT_LIMITS) {
3566 ha_alert("[%s.main()] Failed to set the raise the maximum "
3567 "file size.\n", argv[0]);
3568 if (!(global.mode & MODE_MWORKER))
3569 exit(1);
3570 }
3571 else
3572 ha_warning("[%s.main()] Failed to set the raise the maximum "
3573 "file size. This will fail in >= v2.3\n", argv[0]);
3574 }
3575#endif
3576
3577#if defined(RLIMIT_CORE)
3578 if (setrlimit(RLIMIT_CORE, &limit) == -1) {
3579 if (global.tune.options & GTUNE_STRICT_LIMITS) {
3580 ha_alert("[%s.main()] Failed to set the raise the core "
3581 "dump size.\n", argv[0]);
3582 if (!(global.mode & MODE_MWORKER))
3583 exit(1);
3584 }
3585 else
3586 ha_warning("[%s.main()] Failed to set the raise the core "
3587 "dump size. This will fail in >= v2.3\n", argv[0]);
3588 }
3589#endif
3590
3591#if defined(USE_PRCTL)
3592 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1)
3593 ha_warning("[%s.main()] Failed to set the dumpable flag, "
3594 "no core will be dumped.\n", argv[0]);
3595#endif
3596 }
3597
Christopher Faulete3a5e352017-10-24 13:53:54 +02003598 global.mode &= ~MODE_STARTING;
Willy Tarreau4f60f162007-04-08 16:39:58 +02003599 /*
3600 * That's it : the central polling loop. Run until we stop.
3601 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02003602#ifdef USE_THREAD
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003603 {
William Lallemand1aab50b2018-06-07 09:46:01 +02003604 sigset_t blocked_sig, old_sig;
Willy Tarreauc40efc12019-05-03 09:22:44 +02003605 int i;
3606
William Lallemand1aab50b2018-06-07 09:46:01 +02003607 /* ensure the signals will be blocked in every thread */
3608 sigfillset(&blocked_sig);
3609 sigdelset(&blocked_sig, SIGPROF);
3610 sigdelset(&blocked_sig, SIGBUS);
3611 sigdelset(&blocked_sig, SIGFPE);
3612 sigdelset(&blocked_sig, SIGILL);
3613 sigdelset(&blocked_sig, SIGSEGV);
3614 pthread_sigmask(SIG_SETMASK, &blocked_sig, &old_sig);
3615
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003616 /* Create nbthread-1 thread. The first thread is the current process */
David Carliera92c5ce2019-09-13 05:03:12 +01003617 ha_thread_info[0].pthread = pthread_self();
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003618 for (i = 1; i < global.nbthread; i++)
David Carliera92c5ce2019-09-13 05:03:12 +01003619 pthread_create(&ha_thread_info[i].pthread, NULL, &run_thread_poll_loop, (void *)(long)i);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003620
Christopher Faulet62519022017-10-16 15:49:32 +02003621#ifdef USE_CPU_AFFINITY
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003622 /* Now the CPU affinity for all threads */
Willy Tarreau7764a572019-07-16 15:10:34 +02003623 if (global.cpu_map.proc_t1[relative_pid-1])
3624 global.cpu_map.thread[0] &= global.cpu_map.proc_t1[relative_pid-1];
3625
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003626 for (i = 0; i < global.nbthread; i++) {
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003627 if (global.cpu_map.proc[relative_pid-1])
Willy Tarreau81492c92019-05-03 09:41:23 +02003628 global.cpu_map.thread[i] &= global.cpu_map.proc[relative_pid-1];
Christopher Faulet62519022017-10-16 15:49:32 +02003629
Willy Tarreau421f02e2018-01-20 18:19:22 +01003630 if (i < MAX_THREADS && /* only the first 32/64 threads may be pinned */
Willy Tarreau81492c92019-05-03 09:41:23 +02003631 global.cpu_map.thread[i]) {/* only do this if the thread has a THREAD map */
David Carlier5e4c8e22019-09-13 05:12:58 +01003632#if defined(__APPLE__)
3633 int j;
3634 unsigned long cpu_map = global.cpu_map.thread[i];
3635
3636 while ((j = ffsl(cpu_map)) > 0) {
3637 thread_affinity_policy_data_t cpu_set = { j - 1 };
3638 thread_port_t mthread = pthread_mach_thread_np(ha_thread_info[i].pthread);
3639 thread_policy_set(mthread, THREAD_AFFINITY_POLICY, (thread_policy_t)&cpu_set, 1);
3640 cpu_map &= ~(1UL << (j - 1));
3641 }
3642#else
Olivier Houchard829aa242017-12-01 18:19:43 +01003643#if defined(__FreeBSD__) || defined(__NetBSD__)
3644 cpuset_t cpuset;
3645#else
3646 cpu_set_t cpuset;
3647#endif
3648 int j;
Willy Tarreau81492c92019-05-03 09:41:23 +02003649 unsigned long cpu_map = global.cpu_map.thread[i];
Olivier Houchard829aa242017-12-01 18:19:43 +01003650
3651 CPU_ZERO(&cpuset);
3652
3653 while ((j = ffsl(cpu_map)) > 0) {
3654 CPU_SET(j - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003655 cpu_map &= ~(1UL << (j - 1));
Olivier Houchard829aa242017-12-01 18:19:43 +01003656 }
David Carliera92c5ce2019-09-13 05:03:12 +01003657 pthread_setaffinity_np(ha_thread_info[i].pthread,
Olivier Houchard829aa242017-12-01 18:19:43 +01003658 sizeof(cpuset), &cpuset);
David Carlier5e4c8e22019-09-13 05:12:58 +01003659#endif
Olivier Houchard829aa242017-12-01 18:19:43 +01003660 }
Christopher Faulet1d17c102017-08-29 15:38:48 +02003661 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003662#endif /* !USE_CPU_AFFINITY */
3663
William Lallemand1aab50b2018-06-07 09:46:01 +02003664 /* when multithreading we need to let only the thread 0 handle the signals */
William Lallemandd3801c12018-09-11 10:06:23 +02003665 haproxy_unblock_signals();
William Lallemand1aab50b2018-06-07 09:46:01 +02003666
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003667 /* Finally, start the poll loop for the first thread */
Willy Tarreaub4f7cc32019-05-03 09:27:30 +02003668 run_thread_poll_loop(0);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003669
3670 /* Wait the end of other threads */
3671 for (i = 1; i < global.nbthread; i++)
David Carliera92c5ce2019-09-13 05:03:12 +01003672 pthread_join(ha_thread_info[i].pthread, NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02003673
Christopher Fauletb79a94c2017-05-30 15:34:30 +02003674#if defined(DEBUG_THREAD) || defined(DEBUG_FULL)
3675 show_lock_stats();
3676#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003677 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003678#else /* ! USE_THREAD */
William Lallemandd3801c12018-09-11 10:06:23 +02003679 haproxy_unblock_signals();
Willy Tarreaub4f7cc32019-05-03 09:27:30 +02003680 run_thread_poll_loop(0);
Christopher Faulet62519022017-10-16 15:49:32 +02003681#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003682
3683 /* Do some cleanup */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003684 deinit();
Christopher Faulet1d17c102017-08-29 15:38:48 +02003685
Willy Tarreaubaaee002006-06-26 02:48:02 +02003686 exit(0);
3687}
3688
Willy Tarreaubb1b63c2020-04-15 17:00:03 +02003689#if defined(__clang_version__)
3690REGISTER_BUILD_OPTS("Built with clang compiler version " __clang_version__);
3691#elif defined(__VERSION__)
3692REGISTER_BUILD_OPTS("Built with gcc compiler version " __VERSION__);
3693#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02003694
3695/*
3696 * Local variables:
3697 * c-indent-level: 8
3698 * c-basic-offset: 8
3699 * End:
3700 */