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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>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010049#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020050#include <time.h>
51#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010052#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010053#ifdef USE_CPU_AFFINITY
Willy Tarreaufc6c0322012-11-16 16:12:27 +010054#include <sched.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000055#if defined(__FreeBSD__) || defined(__DragonFly__)
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020056#include <sys/param.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000057#ifdef __FreeBSD__
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020058#include <sys/cpuset.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000059#endif
David Carlier6d5c8412017-11-29 11:02:32 +000060#include <pthread_np.h>
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020061#endif
David Carlier5e4c8e22019-09-13 05:12:58 +010062#ifdef __APPLE__
63#include <mach/mach_types.h>
64#include <mach/thread_act.h>
65#include <mach/thread_policy.h>
66#endif
Willy Tarreaufc6c0322012-11-16 16:12:27 +010067#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020068
Willy Tarreau636848a2019-04-15 19:38:50 +020069#if defined(USE_PRCTL)
70#include <sys/prctl.h>
71#endif
72
Willy Tarreaubaaee002006-06-26 02:48:02 +020073#ifdef DEBUG_FULL
74#include <assert.h>
75#endif
Tim Duesterhusd6942c82017-11-20 15:58:35 +010076#if defined(USE_SYSTEMD)
77#include <systemd/sd-daemon.h>
78#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020079
Willy Tarreau6c3a6812020-03-06 18:57:15 +010080#include <import/sha1.h>
81
Willy Tarreau2dd0d472006-06-29 17:53:05 +020082#include <common/base64.h>
83#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020084#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020085#include <common/compat.h>
86#include <common/config.h>
87#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010088#include <common/errors.h>
Willy Tarreau5794fb02018-11-25 18:43:29 +010089#include <common/initcall.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020090#include <common/memory.h>
91#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010092#include <common/namespace.h>
Willy Tarreau6c3a6812020-03-06 18:57:15 +010093#include <common/net_helper.h>
Willy Tarreauc125cef2019-05-10 09:58:43 +020094#include <common/openssl-compat.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020095#include <common/regex.h>
96#include <common/standard.h>
97#include <common/time.h>
98#include <common/uri_auth.h>
99#include <common/version.h>
Christopher Fauletbe0faa22017-08-29 15:37:10 +0200100#include <common/hathreads.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200101
102#include <types/capture.h>
William Lallemandce83b4a2018-10-26 14:47:30 +0200103#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200104#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200105#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +0900106#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +0200107#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200108
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200109#include <proto/acl.h>
Willy Tarreau609aad92018-11-22 08:31:09 +0100110#include <proto/activity.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +0200111#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +0200112#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200113#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200114#include <proto/channel.h>
William Lallemandce83b4a2018-10-26 14:47:30 +0200115#include <proto/cli.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200116#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200117#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200118#include <proto/filters.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100119#include <proto/hlua.h>
Willy Tarreau61c112a2018-10-02 16:43:32 +0200120#include <proto/http_rules.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200121#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200122#include <proto/log.h>
William Lallemand48dfbbd2019-04-01 11:29:53 +0200123#include <proto/mworker.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100124#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200125#include <proto/protocol.h>
Christopher Fauletfc9cfe42019-07-16 14:54:53 +0200126#include <proto/http_ana.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200127#include <proto/proxy.h>
128#include <proto/queue.h>
129#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200130#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200131#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200132#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200133#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200134#include <proto/dns.h>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100135#include <proto/vars.h>
Grant Zhang872f9c22017-01-21 01:10:18 +0000136#include <proto/ssl_sock.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200137
Willy Tarreau7b5654f2019-03-29 21:30:17 +0100138/* array of init calls for older platforms */
139DECLARE_INIT_STAGES;
140
Willy Tarreau477ecd82010-01-03 21:12:30 +0100141/* list of config files */
142static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200143int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100144int relative_pid = 1; /* process id starting at 1 */
Willy Tarreau387bd4f2017-11-10 19:08:14 +0100145unsigned long pid_bit = 1; /* bit corresponding to the process id */
Willy Tarreaua38a7172019-02-02 17:11:28 +0100146unsigned long all_proc_mask = 1; /* mask of all processes */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200147
Willy Tarreauf8ea00e2020-03-12 17:24:53 +0100148volatile unsigned long sleeping_thread_mask = 0; /* Threads that are about to sleep in poll() */
Willy Tarreau4b3f27b2020-03-12 17:28:01 +0100149volatile unsigned long stopping_thread_mask = 0; /* Threads acknowledged stopping */
Willy Tarreauf8ea00e2020-03-12 17:24:53 +0100150
Willy Tarreaubaaee002006-06-26 02:48:02 +0200151/* global options */
152struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100153 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100154 .nbproc = 1,
Willy Tarreau149ab772019-01-26 14:27:06 +0100155 .nbthread = 0,
William Lallemand5f232402012-04-05 18:02:55 +0200156 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200157 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100158 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100159 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100160 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200161 .unix_bind = {
162 .ux = {
163 .uid = -1,
164 .gid = -1,
165 .mode = 0,
166 }
167 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200168 .tune = {
Willy Tarreau7ac908b2019-02-27 12:02:18 +0100169 .options = GTUNE_LISTENER_MQ,
Willy Tarreauc77d3642018-12-12 06:19:42 +0100170 .bufsize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Christopher Faulet546c4692020-01-22 14:31:21 +0100171 .maxrewrite = MAXREWRITE,
Willy Tarreauc77d3642018-12-12 06:19:42 +0100172 .chksize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Willy Tarreaua24adf02014-11-27 01:11:56 +0100173 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200174 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Olivier Houchard88698d92019-04-16 19:07:22 +0200175 .pool_low_ratio = 20,
176 .pool_high_ratio = 25,
Christopher Faulet41ba36f2019-07-19 09:36:45 +0200177 .max_http_hdr = MAX_HTTP_HDR,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200178#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100179 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200180#endif
William Lallemandf3747832012-11-09 12:33:10 +0100181 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100182#ifdef DEFAULT_IDLE_TIMER
183 .idle_timer = DEFAULT_IDLE_TIMER,
184#else
185 .idle_timer = 1000, /* 1 second */
186#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200187 },
Emeric Brun76d88952012-10-05 15:47:31 +0200188#ifdef USE_OPENSSL
189#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200190 .maxsslconn = DEFAULT_MAXSSLCONN,
191#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200192#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200193 /* others NULL OK */
194};
195
196/*********************************************************************/
197
198int stopping; /* non zero means stopping in progress */
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100199int killed; /* non zero means a hard-stop is triggered */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200200int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
William Lallemanda7199262018-11-16 16:57:20 +0100201int unstoppable_jobs = 0; /* number of active jobs that can't be stopped during a soft stop */
Willy Tarreau199ad242018-11-05 16:31:22 +0100202int active_peers = 0; /* number of active peers (connection attempts and connected) */
Willy Tarreau2d372c22018-11-05 17:12:27 +0100203int connected_peers = 0; /* number of connected peers (verified ones) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200204
205/* Here we store informations about the pids of the processes we may pause
206 * or kill. We will send them a signal every 10 ms until we can bind to all
207 * our ports. With 200 retries, that's about 2 seconds.
208 */
209#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200210static int *oldpids = NULL;
211static int oldpids_sig; /* use USR1 or TERM */
212
Olivier Houchardf73629d2017-04-05 22:33:04 +0200213/* Path to the unix socket we use to retrieve listener sockets from the old process */
214static const char *old_unixsocket;
215
William Lallemand85b0bd92017-06-01 17:38:53 +0200216static char *cur_unixsocket = NULL;
217
William Lallemandcb11fd22017-06-01 17:38:52 +0200218int atexit_flag = 0;
219
Willy Tarreaubb545b42010-08-25 12:58:59 +0200220int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200221const int zero = 0;
222const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200223const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200224
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100225char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200226char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200227
William Lallemand73b85e72017-06-01 17:38:51 +0200228static char **next_argv = NULL;
229
William Lallemandbc193052018-09-11 10:06:26 +0200230struct list proc_list = LIST_HEAD_INIT(proc_list);
231
232int master = 0; /* 1 if in master, 0 if in child */
Willy Tarreaubf696402019-03-01 10:09:28 +0100233unsigned int rlim_fd_cur_at_boot = 0;
234unsigned int rlim_fd_max_at_boot = 0;
William Lallemandbc193052018-09-11 10:06:26 +0200235
Willy Tarreau6c3a6812020-03-06 18:57:15 +0100236/* per-boot randomness */
237unsigned char boot_seed[20]; /* per-boot random seed (160 bits initially) */
238
William Lallemand16dd1b32018-11-19 18:46:18 +0100239struct mworker_proc *proc_self = NULL;
William Lallemandbc193052018-09-11 10:06:26 +0200240
William Lallemandb3f2be32018-09-11 10:06:18 +0200241static void *run_thread_poll_loop(void *data);
242
Willy Tarreauff055502014-04-28 22:27:06 +0200243/* bitfield of a few warnings to emit just once (WARN_*) */
244unsigned int warned = 0;
245
William Lallemande7361152018-10-26 14:47:36 +0200246/* master CLI configuration (-S flag) */
247struct list mworker_cli_conf = LIST_HEAD_INIT(mworker_cli_conf);
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100248
249/* These are strings to be reported in the output of "haproxy -vv". They may
250 * either be constants (in which case must_free must be zero) or dynamically
251 * allocated strings to pass to free() on exit, and in this case must_free
252 * must be non-zero.
253 */
254struct list build_opts_list = LIST_HEAD_INIT(build_opts_list);
255struct build_opts_str {
256 struct list list;
257 const char *str;
258 int must_free;
259};
260
Willy Tarreaue6945732016-12-21 19:57:00 +0100261/* These functions are called just after the point where the program exits
262 * after a config validity check, so they are generally suited for resource
263 * allocation and slow initializations that should be skipped during basic
264 * config checks. The functions must return 0 on success, or a combination
265 * of ERR_* flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause
266 * and immediate exit, so the function must have emitted any useful error.
267 */
268struct list post_check_list = LIST_HEAD_INIT(post_check_list);
269struct post_check_fct {
270 struct list list;
271 int (*fct)();
272};
273
Christopher Fauletc1692962019-08-12 09:51:07 +0200274/* These functions are called for each proxy just after the config validity
275 * check. The functions must return 0 on success, or a combination of ERR_*
276 * flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause and immediate
277 * exit, so the function must have emitted any useful error.
278 */
279struct list post_proxy_check_list = LIST_HEAD_INIT(post_proxy_check_list);
280struct post_proxy_check_fct {
281 struct list list;
282 int (*fct)(struct proxy *);
283};
284
285/* These functions are called for each server just after the config validity
286 * check. The functions must return 0 on success, or a combination of ERR_*
287 * flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause and immediate
288 * exit, so the function must have emitted any useful error.
289 */
290struct list post_server_check_list = LIST_HEAD_INIT(post_server_check_list);
291struct post_server_check_fct {
292 struct list list;
293 int (*fct)(struct server *);
294};
295
Willy Tarreau082b6282019-05-22 14:42:12 +0200296/* These functions are called for each thread just after the thread creation
297 * and before running the init functions. They should be used to do per-thread
298 * (re-)allocations that are needed by subsequent functoins. They must return 0
299 * if an error occurred. */
300struct list per_thread_alloc_list = LIST_HEAD_INIT(per_thread_alloc_list);
301struct per_thread_alloc_fct {
Willy Tarreau05554e62016-12-21 20:46:26 +0100302 struct list list;
Willy Tarreau082b6282019-05-22 14:42:12 +0200303 int (*fct)();
Willy Tarreau05554e62016-12-21 20:46:26 +0100304};
305
Christopher Faulet415f6112017-07-25 16:52:58 +0200306/* These functions are called for each thread just after the thread creation
307 * and before running the scheduler. They should be used to do per-thread
308 * initializations. They must return 0 if an error occurred. */
309struct list per_thread_init_list = LIST_HEAD_INIT(per_thread_init_list);
310struct per_thread_init_fct {
311 struct list list;
312 int (*fct)();
313};
314
Willy Tarreau082b6282019-05-22 14:42:12 +0200315/* These functions are called when freeing the global sections at the end of
316 * deinit, after everything is stopped. They don't return anything. They should
317 * not release shared resources that are possibly used by other deinit
318 * functions, only close/release what is private. Use the per_thread_free_list
319 * to release shared resources.
320 */
321struct list post_deinit_list = LIST_HEAD_INIT(post_deinit_list);
322struct post_deinit_fct {
323 struct list list;
324 void (*fct)();
325};
326
Christopher Faulet3ea5cbe2019-07-31 08:44:12 +0200327/* These functions are called when freeing a proxy during the deinit, after
328 * everything isg stopped. They don't return anything. They should not release
329 * the proxy itself or any shared resources that are possibly used by other
330 * deinit functions, only close/release what is private.
331 */
332struct list proxy_deinit_list = LIST_HEAD_INIT(proxy_deinit_list);
333struct proxy_deinit_fct {
334 struct list list;
335 void (*fct)(struct proxy *);
336};
337
338/* These functions are called when freeing a server during the deinit, after
339 * everything isg stopped. They don't return anything. They should not release
340 * the proxy itself or any shared resources that are possibly used by other
341 * deinit functions, only close/release what is private.
342 */
343struct list server_deinit_list = LIST_HEAD_INIT(server_deinit_list);
344struct server_deinit_fct {
345 struct list list;
346 void (*fct)(struct server *);
347};
348
Willy Tarreau082b6282019-05-22 14:42:12 +0200349/* These functions are called when freeing the global sections at the end of
350 * deinit, after the thread deinit functions, to release unneeded memory
351 * allocations. They don't return anything, and they work in best effort mode
352 * as their sole goal is to make valgrind mostly happy.
353 */
354struct list per_thread_free_list = LIST_HEAD_INIT(per_thread_free_list);
355struct per_thread_free_fct {
356 struct list list;
357 int (*fct)();
358};
359
Christopher Faulet415f6112017-07-25 16:52:58 +0200360/* These functions are called for each thread just after the scheduler loop and
361 * before exiting the thread. They don't return anything and, as for post-deinit
362 * functions, they work in best effort mode as their sole goal is to make
363 * valgrind mostly happy. */
364struct list per_thread_deinit_list = LIST_HEAD_INIT(per_thread_deinit_list);
365struct per_thread_deinit_fct {
366 struct list list;
367 void (*fct)();
368};
369
Willy Tarreaubaaee002006-06-26 02:48:02 +0200370/*********************************************************************/
371/* general purpose functions ***************************************/
372/*********************************************************************/
373
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100374/* used to register some build option strings at boot. Set must_free to
375 * non-zero if the string must be freed upon exit.
376 */
377void hap_register_build_opts(const char *str, int must_free)
378{
379 struct build_opts_str *b;
380
381 b = calloc(1, sizeof(*b));
382 if (!b) {
383 fprintf(stderr, "out of memory\n");
384 exit(1);
385 }
386 b->str = str;
387 b->must_free = must_free;
388 LIST_ADDQ(&build_opts_list, &b->list);
389}
390
Willy Tarreaue6945732016-12-21 19:57:00 +0100391/* used to register some initialization functions to call after the checks. */
392void hap_register_post_check(int (*fct)())
393{
394 struct post_check_fct *b;
395
396 b = calloc(1, sizeof(*b));
397 if (!b) {
398 fprintf(stderr, "out of memory\n");
399 exit(1);
400 }
401 b->fct = fct;
402 LIST_ADDQ(&post_check_list, &b->list);
403}
404
Christopher Fauletc1692962019-08-12 09:51:07 +0200405/* used to register some initialization functions to call for each proxy after
406 * the checks.
407 */
408void hap_register_post_proxy_check(int (*fct)(struct proxy *))
409{
410 struct post_proxy_check_fct *b;
411
412 b = calloc(1, sizeof(*b));
413 if (!b) {
414 fprintf(stderr, "out of memory\n");
415 exit(1);
416 }
417 b->fct = fct;
418 LIST_ADDQ(&post_proxy_check_list, &b->list);
419}
420
421/* used to register some initialization functions to call for each server after
422 * the checks.
423 */
424void hap_register_post_server_check(int (*fct)(struct server *))
425{
426 struct post_server_check_fct *b;
427
428 b = calloc(1, sizeof(*b));
429 if (!b) {
430 fprintf(stderr, "out of memory\n");
431 exit(1);
432 }
433 b->fct = fct;
434 LIST_ADDQ(&post_server_check_list, &b->list);
435}
436
Willy Tarreau05554e62016-12-21 20:46:26 +0100437/* used to register some de-initialization functions to call after everything
438 * has stopped.
439 */
440void hap_register_post_deinit(void (*fct)())
441{
442 struct post_deinit_fct *b;
443
444 b = calloc(1, sizeof(*b));
445 if (!b) {
446 fprintf(stderr, "out of memory\n");
447 exit(1);
448 }
449 b->fct = fct;
450 LIST_ADDQ(&post_deinit_list, &b->list);
451}
452
Christopher Faulet3ea5cbe2019-07-31 08:44:12 +0200453/* used to register some per proxy de-initialization functions to call after
454 * everything has stopped.
455 */
456void hap_register_proxy_deinit(void (*fct)(struct proxy *))
457{
458 struct proxy_deinit_fct *b;
459
460 b = calloc(1, sizeof(*b));
461 if (!b) {
462 fprintf(stderr, "out of memory\n");
463 exit(1);
464 }
465 b->fct = fct;
466 LIST_ADDQ(&proxy_deinit_list, &b->list);
467}
468
469
470/* used to register some per server de-initialization functions to call after
471 * everything has stopped.
472 */
473void hap_register_server_deinit(void (*fct)(struct server *))
474{
475 struct server_deinit_fct *b;
476
477 b = calloc(1, sizeof(*b));
478 if (!b) {
479 fprintf(stderr, "out of memory\n");
480 exit(1);
481 }
482 b->fct = fct;
483 LIST_ADDQ(&server_deinit_list, &b->list);
484}
485
Willy Tarreau082b6282019-05-22 14:42:12 +0200486/* used to register some allocation functions to call for each thread. */
487void hap_register_per_thread_alloc(int (*fct)())
488{
489 struct per_thread_alloc_fct *b;
490
491 b = calloc(1, sizeof(*b));
492 if (!b) {
493 fprintf(stderr, "out of memory\n");
494 exit(1);
495 }
496 b->fct = fct;
497 LIST_ADDQ(&per_thread_alloc_list, &b->list);
498}
499
Christopher Faulet415f6112017-07-25 16:52:58 +0200500/* used to register some initialization functions to call for each thread. */
501void hap_register_per_thread_init(int (*fct)())
502{
503 struct per_thread_init_fct *b;
504
505 b = calloc(1, sizeof(*b));
506 if (!b) {
507 fprintf(stderr, "out of memory\n");
508 exit(1);
509 }
510 b->fct = fct;
511 LIST_ADDQ(&per_thread_init_list, &b->list);
512}
513
514/* used to register some de-initialization functions to call for each thread. */
515void hap_register_per_thread_deinit(void (*fct)())
516{
517 struct per_thread_deinit_fct *b;
518
519 b = calloc(1, sizeof(*b));
520 if (!b) {
521 fprintf(stderr, "out of memory\n");
522 exit(1);
523 }
524 b->fct = fct;
525 LIST_ADDQ(&per_thread_deinit_list, &b->list);
526}
527
Willy Tarreau082b6282019-05-22 14:42:12 +0200528/* used to register some free functions to call for each thread. */
529void hap_register_per_thread_free(int (*fct)())
530{
531 struct per_thread_free_fct *b;
532
533 b = calloc(1, sizeof(*b));
534 if (!b) {
535 fprintf(stderr, "out of memory\n");
536 exit(1);
537 }
538 b->fct = fct;
539 LIST_ADDQ(&per_thread_free_list, &b->list);
540}
541
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100542static void display_version()
Willy Tarreaubaaee002006-06-26 02:48:02 +0200543{
Willy Tarreau08dd2022019-11-21 18:07:30 +0100544 printf("HA-Proxy version %s %s - https://haproxy.org/\n"
545 PRODUCT_STATUS "\n", haproxy_version, haproxy_date);
Willy Tarreau47479eb2019-11-21 18:48:20 +0100546
547 if (strlen(PRODUCT_URL_BUGS) > 0) {
548 char base_version[20];
549 int dots = 0;
550 char *del;
551
552 /* only retrieve the base version without distro-specific extensions */
553 for (del = haproxy_version; *del; del++) {
554 if (*del == '.')
555 dots++;
556 else if (*del < '0' || *del > '9')
557 break;
558 }
559
560 strlcpy2(base_version, haproxy_version, del - haproxy_version + 1);
561 if (dots < 2)
562 printf("Known bugs: https://github.com/haproxy/haproxy/issues?q=is:issue+is:open\n");
563 else
564 printf("Known bugs: " PRODUCT_URL_BUGS "\n", base_version);
565 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200566}
567
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100568static void display_build_opts()
Willy Tarreau7b066db2007-12-02 11:28:59 +0100569{
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100570 struct build_opts_str *item;
571
Willy Tarreau7b066db2007-12-02 11:28:59 +0100572 printf("Build options :"
573#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100574 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100575#endif
576#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100577 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100578#endif
579#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100580 "\n CC = " BUILD_CC
581#endif
582#ifdef BUILD_CFLAGS
583 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100584#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100585#ifdef BUILD_OPTIONS
586 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100587#endif
Willy Tarreau7728ed32019-03-27 13:20:08 +0100588#ifdef BUILD_FEATURES
589 "\n\nFeature list : " BUILD_FEATURES
590#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200591 "\n\nDefault settings :"
Willy Tarreauca783d42019-03-13 10:03:07 +0100592 "\n bufsize = %d, maxrewrite = %d, maxpollevents = %d"
Willy Tarreau27a674e2009-08-17 07:23:33 +0200593 "\n\n",
Willy Tarreauca783d42019-03-13 10:03:07 +0100594 BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200595
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100596 list_for_each_entry(item, &build_opts_list, list) {
597 puts(item->str);
598 }
599
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100600 putchar('\n');
601
Willy Tarreaube5b6852009-10-03 18:57:08 +0200602 list_pollers(stdout);
603 putchar('\n');
Christopher Faulet98d9fe22018-04-10 14:37:32 +0200604 list_mux_proto(stdout);
605 putchar('\n');
Willy Tarreau679bba12019-03-19 08:08:10 +0100606 list_services(stdout);
607 putchar('\n');
Christopher Fauletb3f4e142016-03-07 12:46:38 +0100608 list_filters(stdout);
609 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100610}
611
Willy Tarreaubaaee002006-06-26 02:48:02 +0200612/*
613 * This function prints the command line usage and exits
614 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100615static void usage(char *name)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200616{
617 display_version();
618 fprintf(stderr,
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200619 "Usage : %s [-f <cfgfile|cfgdir>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200620 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200621 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100622 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200623 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200624 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200625 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200626 " -D goes daemon ; -C changes to <dir> before loading files.\n"
William Lallemand095ba4c2017-06-01 17:38:50 +0200627 " -W master-worker mode.\n"
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100628#if defined(USE_SYSTEMD)
629 " -Ws master-worker mode with systemd notify support.\n"
630#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200631 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200632 " -c check mode : only check config files and exit\n"
Willy Tarreauca783d42019-03-13 10:03:07 +0100633 " -n sets the maximum total # of connections (uses ulimit -n)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200634 " -m limits the usable amount of memory (in MB)\n"
635 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200636 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200637 " -p writes pids of all children to this file\n"
Willy Tarreaue5733232019-05-22 19:24:06 +0200638#if defined(USE_EPOLL)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200639 " -de disables epoll() usage even when available\n"
640#endif
Willy Tarreaue5733232019-05-22 19:24:06 +0200641#if defined(USE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200642 " -dk disables kqueue() usage even when available\n"
643#endif
Willy Tarreaue5733232019-05-22 19:24:06 +0200644#if defined(USE_EVPORTS)
Emmanuel Hocdet0ba4f482019-04-08 16:53:32 +0000645 " -dv disables event ports usage even when available\n"
646#endif
Willy Tarreaue5733232019-05-22 19:24:06 +0200647#if defined(USE_POLL)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200648 " -dp disables poll() usage even when available\n"
649#endif
Willy Tarreaue5733232019-05-22 19:24:06 +0200650#if defined(USE_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100651 " -dS disables splice usage (broken on old kernels)\n"
652#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200653#if defined(USE_GETADDRINFO)
654 " -dG disables getaddrinfo() usage\n"
655#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000656#if defined(SO_REUSEPORT)
657 " -dR disables SO_REUSEPORT usage\n"
658#endif
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100659 " -dr ignores server address resolution failures\n"
Emeric Brun850efd52014-01-29 12:24:34 +0100660 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200661 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Olivier Houchardf73629d2017-04-05 22:33:04 +0200662 " -x <unix_socket> get listening sockets from a unix socket\n"
William Lallemand63329e32019-06-13 17:03:37 +0200663 " -S <bind>[,<bind options>...] new master CLI\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200664 "\n",
Willy Tarreauca783d42019-03-13 10:03:07 +0100665 name, cfg_maxpconn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200666 exit(1);
667}
668
669
670
671/*********************************************************************/
672/* more specific functions ***************************************/
673/*********************************************************************/
674
William Lallemand73b85e72017-06-01 17:38:51 +0200675/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
676 * pids the signal was correctly delivered to.
677 */
William Lallemande25473c2019-04-01 11:29:56 +0200678int tell_old_pids(int sig)
William Lallemand73b85e72017-06-01 17:38:51 +0200679{
680 int p;
681 int ret = 0;
682 for (p = 0; p < nb_oldpids; p++)
683 if (kill(oldpids[p], sig) == 0)
684 ret++;
685 return ret;
686}
687
William Lallemand75ea0a02017-11-15 19:02:58 +0100688/*
William Lallemand73b85e72017-06-01 17:38:51 +0200689 * remove a pid forom the olpid array and decrease nb_oldpids
690 * return 1 pid was found otherwise return 0
691 */
692
693int delete_oldpid(int pid)
694{
695 int i;
696
697 for (i = 0; i < nb_oldpids; i++) {
698 if (oldpids[i] == pid) {
699 oldpids[i] = oldpids[nb_oldpids - 1];
700 oldpids[nb_oldpids - 1] = 0;
701 nb_oldpids--;
702 return 1;
703 }
704 }
705 return 0;
706}
707
William Lallemand85b0bd92017-06-01 17:38:53 +0200708
709static void get_cur_unixsocket()
710{
711 /* if -x was used, try to update the stat socket if not available anymore */
712 if (global.stats_fe) {
713 struct bind_conf *bind_conf;
714
715 /* pass through all stats socket */
716 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
717 struct listener *l;
718
719 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
720
721 if (l->addr.ss_family == AF_UNIX &&
722 (bind_conf->level & ACCESS_FD_LISTENERS)) {
723 const struct sockaddr_un *un;
724
725 un = (struct sockaddr_un *)&l->addr;
726 /* priority to old_unixsocket */
727 if (!cur_unixsocket) {
728 cur_unixsocket = strdup(un->sun_path);
729 } else {
730 if (old_unixsocket && !strcmp(un->sun_path, old_unixsocket)) {
731 free(cur_unixsocket);
732 cur_unixsocket = strdup(old_unixsocket);
733 return;
734 }
735 }
736 }
737 }
738 }
739 }
740 if (!cur_unixsocket && old_unixsocket)
741 cur_unixsocket = strdup(old_unixsocket);
742}
743
William Lallemand73b85e72017-06-01 17:38:51 +0200744/*
745 * When called, this function reexec haproxy with -sf followed by current
Joseph Herlant03420902018-11-15 10:41:50 -0800746 * children PIDs and possibly old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200747 */
William Lallemanda57b7e32018-12-14 21:11:31 +0100748void mworker_reload()
William Lallemand73b85e72017-06-01 17:38:51 +0200749{
750 int next_argc = 0;
William Lallemand73b85e72017-06-01 17:38:51 +0200751 char *msg = NULL;
Willy Tarreau8dca1952019-03-01 10:21:55 +0100752 struct rlimit limit;
William Lallemand7c756a82018-11-26 11:53:40 +0100753 struct per_thread_deinit_fct *ptdf;
William Lallemand73b85e72017-06-01 17:38:51 +0200754
755 mworker_block_signals();
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100756#if defined(USE_SYSTEMD)
757 if (global.tune.options & GTUNE_USE_SYSTEMD)
758 sd_notify(0, "RELOADING=1");
759#endif
William Lallemand73b85e72017-06-01 17:38:51 +0200760 setenv("HAPROXY_MWORKER_REEXEC", "1", 1);
761
William Lallemandbc193052018-09-11 10:06:26 +0200762 mworker_proc_list_to_env(); /* put the children description in the env */
763
William Lallemand7c756a82018-11-26 11:53:40 +0100764 /* during the reload we must ensure that every FDs that can't be
765 * reuse (ie those that are not referenced in the proc_list)
766 * are closed or they will leak. */
767
768 /* close the listeners FD */
769 mworker_cli_proxy_stop();
William Lallemand16866672019-06-24 17:40:48 +0200770
771 if (getenv("HAPROXY_MWORKER_WAIT_ONLY") == NULL) {
772 /* close the poller FD and the thread waker pipe FD */
773 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
774 ptdf->fct();
775 if (fdtab)
776 deinit_pollers();
777 }
Willy Tarreau5db847a2019-05-09 14:13:35 +0200778#if defined(USE_OPENSSL) && (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L)
William Lallemand5fdb5b32019-10-15 14:04:08 +0200779 /* close random device FDs */
780 RAND_keep_random_devices_open(0);
Rob Allen56996da2019-05-03 09:11:32 +0100781#endif
William Lallemand7c756a82018-11-26 11:53:40 +0100782
Willy Tarreau8dca1952019-03-01 10:21:55 +0100783 /* restore the initial FD limits */
784 limit.rlim_cur = rlim_fd_cur_at_boot;
785 limit.rlim_max = rlim_fd_max_at_boot;
786 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
787 getrlimit(RLIMIT_NOFILE, &limit);
788 ha_warning("Failed to restore initial FD limits (cur=%u max=%u), using cur=%u max=%u\n",
789 rlim_fd_cur_at_boot, rlim_fd_max_at_boot,
790 (unsigned int)limit.rlim_cur, (unsigned int)limit.rlim_max);
791 }
792
William Lallemand73b85e72017-06-01 17:38:51 +0200793 /* compute length */
794 while (next_argv[next_argc])
795 next_argc++;
796
William Lallemand85b0bd92017-06-01 17:38:53 +0200797 /* 1 for haproxy -sf, 2 for -x /socket */
William Lallemand3f128872019-04-01 11:29:59 +0200798 next_argv = realloc(next_argv, (next_argc + 1 + 2 + mworker_child_nb() + nb_oldpids + 1) * sizeof(char *));
William Lallemand73b85e72017-06-01 17:38:51 +0200799 if (next_argv == NULL)
800 goto alloc_error;
801
William Lallemand73b85e72017-06-01 17:38:51 +0200802 /* add -sf <PID>* to argv */
William Lallemand3f128872019-04-01 11:29:59 +0200803 if (mworker_child_nb() > 0) {
804 struct mworker_proc *child;
805
William Lallemand73b85e72017-06-01 17:38:51 +0200806 next_argv[next_argc++] = "-sf";
William Lallemand3f128872019-04-01 11:29:59 +0200807
808 list_for_each_entry(child, &proc_list, list) {
William Lallemand677e2f22019-11-19 17:04:18 +0100809 if (!(child->options & (PROC_O_TYPE_WORKER|PROC_O_TYPE_PROG)) || child->pid <= -1 )
William Lallemand3f128872019-04-01 11:29:59 +0200810 continue;
811 next_argv[next_argc] = memprintf(&msg, "%d", child->pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200812 if (next_argv[next_argc] == NULL)
813 goto alloc_error;
814 msg = NULL;
William Lallemand3f128872019-04-01 11:29:59 +0200815 next_argc++;
William Lallemand73b85e72017-06-01 17:38:51 +0200816 }
817 }
William Lallemand3f128872019-04-01 11:29:59 +0200818
William Lallemand73b85e72017-06-01 17:38:51 +0200819 next_argv[next_argc] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200820
William Lallemand2bf6d622017-06-20 11:20:23 +0200821 /* add the -x option with the stat socket */
William Lallemand85b0bd92017-06-01 17:38:53 +0200822 if (cur_unixsocket) {
823
William Lallemand2bf6d622017-06-20 11:20:23 +0200824 next_argv[next_argc++] = "-x";
825 next_argv[next_argc++] = (char *)cur_unixsocket;
826 next_argv[next_argc++] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200827 }
828
Christopher Faulet767a84b2017-11-24 16:50:31 +0100829 ha_warning("Reexecuting Master process\n");
Willy Tarreaue0d86e22019-08-26 10:37:39 +0200830 signal(SIGPROF, SIG_IGN);
Tim Duesterhus0436ab72017-11-12 17:39:18 +0100831 execvp(next_argv[0], next_argv);
William Lallemand73b85e72017-06-01 17:38:51 +0200832
Christopher Faulet767a84b2017-11-24 16:50:31 +0100833 ha_warning("Failed to reexecute the master process [%d]: %s\n", pid, strerror(errno));
William Lallemand722d4ca2017-11-15 19:02:55 +0100834 return;
835
William Lallemand73b85e72017-06-01 17:38:51 +0200836alloc_error:
Joseph Herlant07a08342018-11-15 10:43:05 -0800837 ha_warning("Failed to reexecute the master process [%d]: Cannot allocate memory\n", pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200838 return;
839}
840
William Lallemandb3f2be32018-09-11 10:06:18 +0200841static void mworker_loop()
842{
843
844#if defined(USE_SYSTEMD)
845 if (global.tune.options & GTUNE_USE_SYSTEMD)
846 sd_notifyf(0, "READY=1\nMAINPID=%lu", (unsigned long)getpid());
847#endif
Willy Tarreaud83b6c12019-04-18 11:31:36 +0200848 /* Busy polling makes no sense in the master :-) */
849 global.tune.options &= ~GTUNE_BUSY_POLLING;
William Lallemandb3f2be32018-09-11 10:06:18 +0200850
William Lallemandbc193052018-09-11 10:06:26 +0200851 master = 1;
852
Willy Tarreaud26c9f92019-12-11 14:24:07 +0100853 signal_unregister(SIGTTIN);
854 signal_unregister(SIGTTOU);
William Lallemand0564d412018-11-20 17:36:53 +0100855 signal_unregister(SIGUSR1);
856 signal_unregister(SIGHUP);
857 signal_unregister(SIGQUIT);
858
William Lallemandb3f2be32018-09-11 10:06:18 +0200859 signal_register_fct(SIGTERM, mworker_catch_sigterm, SIGTERM);
860 signal_register_fct(SIGUSR1, mworker_catch_sigterm, SIGUSR1);
Willy Tarreaud26c9f92019-12-11 14:24:07 +0100861 signal_register_fct(SIGTTIN, mworker_broadcast_signal, SIGTTIN);
862 signal_register_fct(SIGTTOU, mworker_broadcast_signal, SIGTTOU);
William Lallemandb3f2be32018-09-11 10:06:18 +0200863 signal_register_fct(SIGINT, mworker_catch_sigterm, SIGINT);
864 signal_register_fct(SIGHUP, mworker_catch_sighup, SIGHUP);
865 signal_register_fct(SIGUSR2, mworker_catch_sighup, SIGUSR2);
866 signal_register_fct(SIGCHLD, mworker_catch_sigchld, SIGCHLD);
867
868 mworker_unblock_signals();
869 mworker_cleanlisteners();
William Lallemand27f3fa52018-12-06 14:05:20 +0100870 mworker_cleantasks();
William Lallemandb3f2be32018-09-11 10:06:18 +0200871
William Lallemandbc193052018-09-11 10:06:26 +0200872 mworker_catch_sigchld(NULL); /* ensure we clean the children in case
873 some SIGCHLD were lost */
874
William Lallemandb3f2be32018-09-11 10:06:18 +0200875 global.nbthread = 1;
876 relative_pid = 1;
877 pid_bit = 1;
Willy Tarreaua38a7172019-02-02 17:11:28 +0100878 all_proc_mask = 1;
William Lallemandb3f2be32018-09-11 10:06:18 +0200879
William Lallemand2672eb92018-12-14 15:52:39 +0100880#ifdef USE_THREAD
881 tid_bit = 1;
882 all_threads_mask = 1;
883#endif
884
William Lallemandb3f2be32018-09-11 10:06:18 +0200885 jobs++; /* this is the "master" job, we want to take care of the
886 signals even if there is no listener so the poll loop don't
887 leave */
888
889 fork_poller();
Willy Tarreaub4f7cc32019-05-03 09:27:30 +0200890 run_thread_poll_loop(0);
William Lallemandb3f2be32018-09-11 10:06:18 +0200891}
William Lallemandcb11fd22017-06-01 17:38:52 +0200892
893/*
894 * Reexec the process in failure mode, instead of exiting
895 */
896void reexec_on_failure()
897{
898 if (!atexit_flag)
899 return;
900
901 setenv("HAPROXY_MWORKER_WAIT_ONLY", "1", 1);
902
Christopher Faulet767a84b2017-11-24 16:50:31 +0100903 ha_warning("Reexecuting Master process in waitpid mode\n");
William Lallemandcb11fd22017-06-01 17:38:52 +0200904 mworker_reload();
William Lallemandcb11fd22017-06-01 17:38:52 +0200905}
William Lallemand73b85e72017-06-01 17:38:51 +0200906
907
908/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200909 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
910 * a signal zero to all subscribers. This means that it's as easy as
911 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200912 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100913static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200914{
915 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200916 signal_unregister_handler(sh);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100917 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200918}
919
920/*
921 * upon SIGTTOU, we pause everything
922 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100923static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200924{
925 pause_proxies();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100926 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200927}
928
929/*
930 * upon SIGTTIN, let's have a soft stop.
931 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100932static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200933{
Willy Tarreaube58c382011-07-24 18:28:10 +0200934 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200935}
936
937/*
938 * this function dumps every server's state when the process receives SIGHUP.
939 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100940static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200941{
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100942 struct proxy *p = proxies_list;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200943
Christopher Faulet767a84b2017-11-24 16:50:31 +0100944 ha_warning("SIGHUP received, dumping servers states.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200945 while (p) {
946 struct server *s = p->srv;
947
948 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
949 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100950 chunk_printf(&trash,
951 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
952 p->id, s->id,
Emeric Brun52a91d32017-08-31 14:41:55 +0200953 (s->cur_state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100954 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200955 ha_warning("%s\n", trash.area);
956 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200957 s = s->next;
958 }
959
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200960 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
961 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100962 chunk_printf(&trash,
963 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
964 p->id,
965 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 +0200966 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100967 chunk_printf(&trash,
968 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
969 p->id,
970 (p->srv_bck) ? "is running on backup servers" : "has no server available",
971 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 +0200972 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100973 chunk_printf(&trash,
974 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
975 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
976 p->id, p->srv_act, p->srv_bck,
977 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 +0200978 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200979 ha_warning("%s\n", trash.area);
980 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200981
982 p = p->next;
983 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200984}
985
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100986static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200987{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200988 /* dump memory usage then free everything possible */
989 dump_pools();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100990 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200991}
992
William Lallemande1340412017-12-28 16:09:36 +0100993/*
994 * This function dup2 the stdio FDs (0,1,2) with <fd>, then closes <fd>
995 * If <fd> < 0, it opens /dev/null and use it to dup
996 *
997 * In the case of chrooting, you have to open /dev/null before the chroot, and
998 * pass the <fd> to this function
999 */
1000static void stdio_quiet(int fd)
1001{
1002 if (fd < 0)
1003 fd = open("/dev/null", O_RDWR, 0);
1004
1005 if (fd > -1) {
1006 fclose(stdin);
1007 fclose(stdout);
1008 fclose(stderr);
1009
1010 dup2(fd, 0);
1011 dup2(fd, 1);
1012 dup2(fd, 2);
1013 if (fd > 2)
1014 close(fd);
1015 return;
1016 }
1017
1018 ha_alert("Cannot open /dev/null\n");
1019 exit(EXIT_FAILURE);
1020}
1021
1022
Joseph Herlant03420902018-11-15 10:41:50 -08001023/* This function checks if cfg_cfgfiles contains directories.
1024 * If it finds one, it adds all the files (and only files) it contains
1025 * in cfg_cfgfiles in place of the directory (and removes the directory).
1026 * It adds the files in lexical order.
1027 * It adds only files with .cfg extension.
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001028 * It doesn't add files with name starting with '.'
1029 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001030static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001031{
1032 struct wordlist *wl, *wlb;
1033 char *err = NULL;
1034
1035 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1036 struct stat file_stat;
1037 struct dirent **dir_entries = NULL;
1038 int dir_entries_nb;
1039 int dir_entries_it;
1040
1041 if (stat(wl->s, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001042 ha_alert("Cannot open configuration file/directory %s : %s\n",
1043 wl->s,
1044 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001045 exit(1);
1046 }
1047
1048 if (!S_ISDIR(file_stat.st_mode))
1049 continue;
1050
1051 /* from this point wl->s is a directory */
1052
1053 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
1054 if (dir_entries_nb < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001055 ha_alert("Cannot open configuration directory %s : %s\n",
1056 wl->s,
1057 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001058 exit(1);
1059 }
1060
1061 /* for each element in the directory wl->s */
1062 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
1063 struct dirent *dir_entry = dir_entries[dir_entries_it];
1064 char *filename = NULL;
1065 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
1066
1067 /* don't add filename that begin with .
Joseph Herlant03420902018-11-15 10:41:50 -08001068 * only add filename with .cfg extension
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001069 */
1070 if (dir_entry->d_name[0] == '.' ||
1071 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
1072 goto next_dir_entry;
1073
1074 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001075 ha_alert("Cannot load configuration files %s : out of memory.\n",
1076 filename);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001077 exit(1);
1078 }
1079
1080 if (stat(filename, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001081 ha_alert("Cannot open configuration file %s : %s\n",
1082 wl->s,
1083 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001084 exit(1);
1085 }
1086
1087 /* don't add anything else than regular file in cfg_cfgfiles
1088 * this way we avoid loops
1089 */
1090 if (!S_ISREG(file_stat.st_mode))
1091 goto next_dir_entry;
1092
1093 if (!list_append_word(&wl->list, filename, &err)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001094 ha_alert("Cannot load configuration files %s : %s\n",
1095 filename,
1096 err);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001097 exit(1);
1098 }
1099
1100next_dir_entry:
1101 free(filename);
1102 free(dir_entry);
1103 }
1104
1105 free(dir_entries);
1106
1107 /* remove the current directory (wl) from cfg_cfgfiles */
1108 free(wl->s);
1109 LIST_DEL(&wl->list);
1110 free(wl);
1111 }
1112
1113 free(err);
1114}
1115
Olivier Houchardf73629d2017-04-05 22:33:04 +02001116static int get_old_sockets(const char *unixsocket)
1117{
1118 char *cmsgbuf = NULL, *tmpbuf = NULL;
1119 int *tmpfd = NULL;
1120 struct sockaddr_un addr;
1121 struct cmsghdr *cmsg;
1122 struct msghdr msghdr;
1123 struct iovec iov;
1124 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +02001125 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +02001126 int sock = -1;
1127 int ret = -1;
1128 int ret2 = -1;
1129 int fd_nb;
1130 int got_fd = 0;
1131 int i = 0;
1132 size_t maxoff = 0, curoff = 0;
1133
1134 memset(&msghdr, 0, sizeof(msghdr));
1135 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
1136 if (!cmsgbuf) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001137 ha_warning("Failed to allocate memory to send sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001138 goto out;
1139 }
1140 sock = socket(PF_UNIX, SOCK_STREAM, 0);
1141 if (sock < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001142 ha_warning("Failed to connect to the old process socket '%s'\n",
1143 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001144 goto out;
1145 }
Willy Tarreau719e07c2019-12-11 16:29:10 +01001146 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path) - 1);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001147 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
1148 addr.sun_family = PF_UNIX;
1149 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
1150 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001151 ha_warning("Failed to connect to the old process socket '%s'\n",
1152 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001153 goto out;
1154 }
Olivier Houchard54740872017-04-06 14:45:14 +02001155 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001156 iov.iov_base = &fd_nb;
1157 iov.iov_len = sizeof(fd_nb);
1158 msghdr.msg_iov = &iov;
1159 msghdr.msg_iovlen = 1;
1160 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
1161 /* First, get the number of file descriptors to be received */
1162 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001163 ha_warning("Failed to get the number of sockets to be transferred !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001164 goto out;
1165 }
1166 if (fd_nb == 0) {
1167 ret = 0;
1168 goto out;
1169 }
Olivier Houchardf143b802017-11-04 15:13:01 +01001170 tmpbuf = malloc(fd_nb * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int)));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001171 if (tmpbuf == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001172 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001173 goto out;
1174 }
1175 tmpfd = malloc(fd_nb * sizeof(int));
1176 if (tmpfd == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001177 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001178 goto out;
1179 }
1180 msghdr.msg_control = cmsgbuf;
1181 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
Olivier Houchardf143b802017-11-04 15:13:01 +01001182 iov.iov_len = MAX_SEND_FD * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001183 do {
1184 int ret3;
1185
1186 iov.iov_base = tmpbuf + curoff;
1187 ret = recvmsg(sock, &msghdr, 0);
1188 if (ret == -1 && errno == EINTR)
1189 continue;
1190 if (ret <= 0)
1191 break;
1192 /* Send an ack to let the sender know we got the sockets
1193 * and it can send some more
1194 */
1195 do {
1196 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
1197 } while (ret3 == -1 && errno == EINTR);
1198 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
1199 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
1200 if (cmsg->cmsg_level == SOL_SOCKET &&
1201 cmsg->cmsg_type == SCM_RIGHTS) {
1202 size_t totlen = cmsg->cmsg_len -
1203 CMSG_LEN(0);
1204 if (totlen / sizeof(int) + got_fd > fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001205 ha_warning("Got to many sockets !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001206 goto out;
1207 }
1208 /*
1209 * Be paranoid and use memcpy() to avoid any
1210 * potential alignement issue.
1211 */
1212 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
1213 got_fd += totlen / sizeof(int);
1214 }
1215 }
1216 curoff += ret;
1217 } while (got_fd < fd_nb);
1218
1219 if (got_fd != fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001220 ha_warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
1221 fd_nb, got_fd);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001222 goto out;
1223 }
1224 maxoff = curoff;
1225 curoff = 0;
1226 for (i = 0; i < got_fd; i++) {
1227 int fd = tmpfd[i];
1228 socklen_t socklen;
1229 int len;
1230
1231 xfer_sock = calloc(1, sizeof(*xfer_sock));
1232 if (!xfer_sock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001233 ha_warning("Failed to allocate memory in get_old_sockets() !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001234 break;
1235 }
1236 xfer_sock->fd = -1;
1237
1238 socklen = sizeof(xfer_sock->addr);
1239 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001240 ha_warning("Failed to get socket address\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001241 free(xfer_sock);
Olivier Houchardbe7b1ce2017-07-17 17:25:33 +02001242 xfer_sock = NULL;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001243 continue;
1244 }
1245 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001246 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001247 goto out;
1248 }
1249 len = tmpbuf[curoff++];
1250 if (len > 0) {
1251 /* We have a namespace */
1252 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001253 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001254 goto out;
1255 }
1256 xfer_sock->namespace = malloc(len + 1);
1257 if (!xfer_sock->namespace) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001258 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001259 goto out;
1260 }
1261 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
1262 xfer_sock->namespace[len] = 0;
1263 curoff += len;
1264 }
1265 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001266 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001267 goto out;
1268 }
1269 len = tmpbuf[curoff++];
1270 if (len > 0) {
1271 /* We have an interface */
1272 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001273 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001274 goto out;
1275 }
1276 xfer_sock->iface = malloc(len + 1);
1277 if (!xfer_sock->iface) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001278 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001279 goto out;
1280 }
1281 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
Olivier Houchard33e083c2018-03-15 17:48:49 +01001282 xfer_sock->iface[len] = 0;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001283 curoff += len;
1284 }
1285 if (curoff + sizeof(int) > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001286 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001287 goto out;
1288 }
1289 memcpy(&xfer_sock->options, &tmpbuf[curoff],
1290 sizeof(xfer_sock->options));
1291 curoff += sizeof(xfer_sock->options);
1292
1293 xfer_sock->fd = fd;
1294 if (xfer_sock_list)
1295 xfer_sock_list->prev = xfer_sock;
1296 xfer_sock->next = xfer_sock_list;
1297 xfer_sock->prev = NULL;
1298 xfer_sock_list = xfer_sock;
1299 xfer_sock = NULL;
1300 }
1301
1302 ret2 = 0;
1303out:
1304 /* If we failed midway make sure to close the remaining
1305 * file descriptors
1306 */
1307 if (tmpfd != NULL && i < got_fd) {
1308 for (; i < got_fd; i++) {
1309 close(tmpfd[i]);
1310 }
1311 }
1312 free(tmpbuf);
1313 free(tmpfd);
1314 free(cmsgbuf);
1315 if (sock != -1)
1316 close(sock);
1317 if (xfer_sock) {
1318 free(xfer_sock->namespace);
1319 free(xfer_sock->iface);
1320 if (xfer_sock->fd != -1)
1321 close(xfer_sock->fd);
1322 free(xfer_sock);
1323 }
1324 return (ret2);
1325}
1326
Willy Tarreaubaaee002006-06-26 02:48:02 +02001327/*
William Lallemand73b85e72017-06-01 17:38:51 +02001328 * copy and cleanup the current argv
1329 * Remove the -sf /-st parameters
1330 * Return an allocated copy of argv
1331 */
1332
1333static char **copy_argv(int argc, char **argv)
1334{
1335 char **newargv;
William Lallemand2bf6d622017-06-20 11:20:23 +02001336 int i = 0, j = 0;
William Lallemand73b85e72017-06-01 17:38:51 +02001337
1338 newargv = calloc(argc + 2, sizeof(char *));
1339 if (newargv == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001340 ha_warning("Cannot allocate memory\n");
William Lallemand73b85e72017-06-01 17:38:51 +02001341 return NULL;
1342 }
1343
William Lallemand2bf6d622017-06-20 11:20:23 +02001344 while (i < argc) {
1345 /* -sf or -st or -x */
William Lallemand29f690c2018-01-09 23:12:27 +01001346 if (i > 0 && argv[i][0] == '-' &&
1347 ((argv[i][1] == 's' && (argv[i][2] == 'f' || argv[i][2] == 't')) || argv[i][1] == 'x' )) {
William Lallemand2bf6d622017-06-20 11:20:23 +02001348 /* list of pids to finish ('f') or terminate ('t') or unix socket (-x) */
William Lallemand73b85e72017-06-01 17:38:51 +02001349 i++;
1350 while (i < argc && argv[i][0] != '-') {
1351 i++;
1352 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001353 continue;
William Lallemand73b85e72017-06-01 17:38:51 +02001354 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001355
1356 newargv[j++] = argv[i++];
William Lallemand73b85e72017-06-01 17:38:51 +02001357 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001358
William Lallemand73b85e72017-06-01 17:38:51 +02001359 return newargv;
1360}
1361
Willy Tarreau6c3a6812020-03-06 18:57:15 +01001362
1363/* Performs basic random seed initialization. The main issue with this is that
1364 * srandom_r() only takes 32 bits and purposely provides a reproducible sequence,
1365 * which means that there will only be 4 billion possible random sequences once
1366 * srandom() is called, regardless of the internal state. Not calling it is
1367 * even worse as we'll always produce the same randoms sequences. What we do
1368 * here is to create an initial sequence from various entropy sources, hash it
1369 * using SHA1 and keep the resulting 160 bits available globally.
1370 *
1371 * We initialize the current process with the first 32 bits before starting the
1372 * polling loop, where all this will be changed to have process specific and
1373 * thread specific sequences.
Willy Tarreau52bf8392020-03-08 00:42:37 +01001374 *
1375 * Before starting threads, it's still possible to call random() as srandom()
1376 * is initialized from this, but after threads and/or processes are started,
1377 * only ha_random() is expected to be used to guarantee distinct sequences.
Willy Tarreau6c3a6812020-03-06 18:57:15 +01001378 */
1379static void ha_random_boot(char *const *argv)
1380{
1381 unsigned char message[256];
1382 unsigned char *m = message;
1383 struct timeval tv;
1384 blk_SHA_CTX ctx;
1385 unsigned long l;
1386 int fd;
1387 int i;
1388
1389 /* start with current time as pseudo-random seed */
1390 gettimeofday(&tv, NULL);
1391 write_u32(m, tv.tv_sec); m += 4;
1392 write_u32(m, tv.tv_usec); m += 4;
1393
1394 /* PID and PPID add some OS-based randomness */
1395 write_u16(m, getpid()); m += 2;
1396 write_u16(m, getppid()); m += 2;
1397
1398 /* take up to 160 bits bytes from /dev/urandom if available (non-blocking) */
1399 fd = open("/dev/urandom", O_RDONLY);
1400 if (fd >= 0) {
1401 i = read(fd, m, 20);
1402 if (i > 0)
1403 m += i;
1404 close(fd);
1405 }
1406
1407 /* take up to 160 bits bytes from openssl (non-blocking) */
1408#ifdef USE_OPENSSL
1409 if (RAND_bytes(m, 20) == 1)
1410 m += 20;
1411#endif
1412
1413 /* take 160 bits from existing random in case it was already initialized */
1414 for (i = 0; i < 5; i++) {
1415 write_u32(m, random());
1416 m += 4;
1417 }
1418
1419 /* stack address (benefit form operating system's ASLR) */
1420 l = (unsigned long)&m;
1421 memcpy(m, &l, sizeof(l)); m += sizeof(l);
1422
1423 /* argv address (benefit form operating system's ASLR) */
1424 l = (unsigned long)&argv;
1425 memcpy(m, &l, sizeof(l)); m += sizeof(l);
1426
1427 /* use tv_usec again after all the operations above */
1428 gettimeofday(&tv, NULL);
1429 write_u32(m, tv.tv_usec); m += 4;
1430
1431 /*
1432 * At this point, ~84-92 bytes have been used
1433 */
1434
1435 /* finish with the hostname */
1436 strncpy((char *)m, hostname, message + sizeof(message) - m);
1437 m += strlen(hostname);
1438
1439 /* total message length */
1440 l = m - message;
1441
1442 memset(&ctx, 0, sizeof(ctx));
1443 blk_SHA1_Init(&ctx);
1444 blk_SHA1_Update(&ctx, message, l);
1445 blk_SHA1_Final(boot_seed, &ctx);
1446
1447 srandom(read_u32(boot_seed));
Willy Tarreau52bf8392020-03-08 00:42:37 +01001448 ha_random_seed(boot_seed, sizeof(boot_seed));
Willy Tarreau6c3a6812020-03-06 18:57:15 +01001449}
1450
Willy Tarreau5a023f02019-03-01 14:19:31 +01001451/* considers splicing proxies' maxconn, computes the ideal global.maxpipes
1452 * setting, and returns it. It may return -1 meaning "unlimited" if some
1453 * unlimited proxies have been found and the global.maxconn value is not yet
1454 * set. It may also return a value greater than maxconn if it's not yet set.
1455 * Note that a value of zero means there is no need for pipes. -1 is never
1456 * returned if global.maxconn is valid.
1457 */
1458static int compute_ideal_maxpipes()
1459{
1460 struct proxy *cur;
1461 int nbfe = 0, nbbe = 0;
1462 int unlimited = 0;
1463 int pipes;
1464 int max;
1465
1466 for (cur = proxies_list; cur; cur = cur->next) {
1467 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
1468 if (cur->cap & PR_CAP_FE) {
1469 max = cur->maxconn;
1470 nbfe += max;
1471 if (!max) {
1472 unlimited = 1;
1473 break;
1474 }
1475 }
1476 if (cur->cap & PR_CAP_BE) {
1477 max = cur->fullconn ? cur->fullconn : global.maxconn;
1478 nbbe += max;
1479 if (!max) {
1480 unlimited = 1;
1481 break;
1482 }
1483 }
1484 }
1485 }
1486
1487 pipes = MAX(nbfe, nbbe);
1488 if (global.maxconn) {
1489 if (pipes > global.maxconn || unlimited)
1490 pipes = global.maxconn;
1491 } else if (unlimited) {
1492 pipes = -1;
1493 }
1494
1495 return pipes >= 4 ? pipes / 4 : pipes;
1496}
1497
Willy Tarreauac350932019-03-01 15:43:14 +01001498/* considers global.maxsocks, global.maxpipes, async engines, SSL frontends and
1499 * rlimits and computes an ideal maxconn. It's meant to be called only when
1500 * maxsock contains the sum of listening FDs, before it is updated based on
Willy Tarreaudf23c0c2019-03-13 10:10:49 +01001501 * maxconn and pipes. If there are not enough FDs left, DEFAULT_MAXCONN (by
1502 * default 100) is returned as it is expected that it will even run on tight
1503 * environments, and will maintain compatibility with previous packages that
1504 * used to rely on this value as the default one. The system will emit a
1505 * warning indicating how many FDs are missing anyway if needed.
Willy Tarreauac350932019-03-01 15:43:14 +01001506 */
1507static int compute_ideal_maxconn()
1508{
1509 int ssl_sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1510 int engine_fds = global.ssl_used_async_engines * ssl_sides;
1511 int pipes = compute_ideal_maxpipes();
Willy Tarreaub1beaa32020-03-06 10:25:31 +01001512 int remain = MAX(rlim_fd_cur_at_boot, rlim_fd_max_at_boot);
Willy Tarreauac350932019-03-01 15:43:14 +01001513 int maxconn;
1514
1515 /* we have to take into account these elements :
1516 * - number of engine_fds, which inflates the number of FD needed per
1517 * connection by this number.
1518 * - number of pipes per connection on average : for the unlimited
1519 * case, this is 0.5 pipe FDs per connection, otherwise it's a
1520 * fixed value of 2*pipes.
1521 * - two FDs per connection
1522 */
1523
1524 /* subtract listeners and checks */
1525 remain -= global.maxsock;
1526
Willy Tarreau3f200852019-03-14 19:13:17 +01001527 /* one epoll_fd/kqueue_fd per thread */
1528 remain -= global.nbthread;
1529
1530 /* one wake-up pipe (2 fd) per thread */
1531 remain -= 2 * global.nbthread;
1532
Willy Tarreauac350932019-03-01 15:43:14 +01001533 /* Fixed pipes values : we only subtract them if they're not larger
1534 * than the remaining FDs because pipes are optional.
1535 */
1536 if (pipes >= 0 && pipes * 2 < remain)
1537 remain -= pipes * 2;
1538
1539 if (pipes < 0) {
1540 /* maxsock = maxconn * 2 + maxconn/4 * 2 + maxconn * engine_fds.
1541 * = maxconn * (2 + 0.5 + engine_fds)
1542 * = maxconn * (4 + 1 + 2*engine_fds) / 2
1543 */
1544 maxconn = 2 * remain / (5 + 2 * engine_fds);
1545 } else {
1546 /* maxsock = maxconn * 2 + maxconn * engine_fds.
1547 * = maxconn * (2 + engine_fds)
1548 */
1549 maxconn = remain / (2 + engine_fds);
1550 }
1551
Willy Tarreaudf23c0c2019-03-13 10:10:49 +01001552 return MAX(maxconn, DEFAULT_MAXCONN);
Willy Tarreauac350932019-03-01 15:43:14 +01001553}
1554
Willy Tarreaua409f302020-03-10 17:08:53 +01001555/* computes the estimated maxsock value for the given maxconn based on the
1556 * possibly set global.maxpipes and existing partial global.maxsock. It may
1557 * temporarily change global.maxconn for the time needed to propagate the
1558 * computations, and will reset it.
1559 */
1560static int compute_ideal_maxsock(int maxconn)
1561{
1562 int maxpipes = global.maxpipes;
1563 int maxsock = global.maxsock;
1564
1565
1566 if (!maxpipes) {
1567 int old_maxconn = global.maxconn;
1568
1569 global.maxconn = maxconn;
1570 maxpipes = compute_ideal_maxpipes();
1571 global.maxconn = old_maxconn;
1572 }
1573
1574 maxsock += maxconn * 2; /* each connection needs two sockets */
1575 maxsock += maxpipes * 2; /* each pipe needs two FDs */
1576 maxsock += global.nbthread; /* one epoll_fd/kqueue_fd per thread */
1577 maxsock += 2 * global.nbthread; /* one wake-up pipe (2 fd) per thread */
1578
1579 /* compute fd used by async engines */
1580 if (global.ssl_used_async_engines) {
1581 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1582
1583 maxsock += maxconn * sides * global.ssl_used_async_engines;
1584 }
1585 return maxsock;
1586}
1587
Willy Tarreau304e17e2020-03-10 17:54:54 +01001588/* Tests if it is possible to set the current process' RLIMIT_NOFILE to
1589 * <maxsock>, then sets it back to the previous value. Returns non-zero if the
1590 * value is accepted, non-zero otherwise. This is used to determine if an
1591 * automatic limit may be applied or not. When it is not, the caller knows that
1592 * the highest we can do is the rlim_max at boot. In case of error, we return
1593 * that the setting is possible, so that we defer the error processing to the
1594 * final stage in charge of enforcing this.
1595 */
1596static int check_if_maxsock_permitted(int maxsock)
1597{
1598 struct rlimit orig_limit, test_limit;
1599 int ret;
1600
1601 if (getrlimit(RLIMIT_NOFILE, &orig_limit) != 0)
1602 return 1;
1603
1604 /* don't go further if we can't even set to what we have */
1605 if (setrlimit(RLIMIT_NOFILE, &orig_limit) != 0)
1606 return 1;
1607
1608 test_limit.rlim_max = MAX(maxsock, orig_limit.rlim_max);
1609 test_limit.rlim_cur = test_limit.rlim_max;
1610 ret = setrlimit(RLIMIT_NOFILE, &test_limit);
1611
1612 if (setrlimit(RLIMIT_NOFILE, &orig_limit) != 0)
1613 return 1;
1614
1615 return ret == 0;
1616}
1617
1618
William Lallemand73b85e72017-06-01 17:38:51 +02001619/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001620 * This function initializes all the necessary variables. It only returns
1621 * if everything is OK. If something fails, it exits.
1622 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001623static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001624{
Willy Tarreaubaaee002006-06-26 02:48:02 +02001625 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001626 char *tmp;
1627 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +02001628 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +02001629 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +01001630 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +00001631 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +02001632 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +02001633 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +01001634 struct post_check_fct *pcf;
Willy Tarreauac350932019-03-01 15:43:14 +01001635 int ideal_maxconn;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001636
Christopher Faulete3a5e352017-10-24 13:53:54 +02001637 global.mode = MODE_STARTING;
William Lallemand73b85e72017-06-01 17:38:51 +02001638 next_argv = copy_argv(argc, argv);
1639
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001640 if (!init_trash_buffers(1)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001641 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet748919a2017-07-26 14:59:46 +02001642 exit(1);
1643 }
David du Colombier7af46052012-05-16 14:16:48 +02001644
Emeric Brun2b920a12010-09-23 18:30:22 +02001645 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
1646 * the string in case of truncation, and at least FreeBSD appears not to do
1647 * it.
1648 */
1649 memset(hostname, 0, sizeof(hostname));
1650 gethostname(hostname, sizeof(hostname) - 1);
1651 memset(localpeer, 0, sizeof(localpeer));
1652 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
William Lallemanddaf4cd22018-04-17 16:46:13 +02001653 setenv("HAPROXY_LOCALPEER", localpeer, 1);
Emeric Brun2b920a12010-09-23 18:30:22 +02001654
William Lallemand24c928c2020-01-14 17:58:18 +01001655 /* we were in mworker mode, we should restart in mworker mode */
1656 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL)
1657 global.mode |= MODE_MWORKER;
1658
Willy Tarreaubaaee002006-06-26 02:48:02 +02001659 /*
1660 * Initialize the previously static variables.
1661 */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001662
Willy Tarreau173d9952018-01-26 21:48:23 +01001663 totalconn = actconn = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001664 killed = 0;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001665
Willy Tarreaubaaee002006-06-26 02:48:02 +02001666
1667#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +01001668 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001669#endif
1670
Benoit GARNIERb413c2a2016-03-27 11:08:03 +02001671 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001672 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001673 start_date = now;
1674
Willy Tarreau6c3a6812020-03-06 18:57:15 +01001675 ha_random_boot(argv);
Willy Tarreau84310e22014-02-14 11:59:04 +01001676
Willy Tarreau8ed669b2013-01-11 15:49:37 +01001677 if (init_acl() != 0)
1678 exit(1);
Willy Tarreaub6b3df32018-11-26 16:31:20 +01001679
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001680 /* Initialise lua. */
1681 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001682
Christopher Fauletff2613e2016-11-09 11:36:17 +01001683 /* Initialize process vars */
1684 vars_init(&global.vars, SCOPE_PROC);
1685
Willy Tarreau43b78992009-01-25 15:42:27 +01001686 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaue5733232019-05-22 19:24:06 +02001687#if defined(USE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001688 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001689#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001690#if defined(USE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001691 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001692#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001693#if defined(USE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +01001694 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001695#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001696#if defined(USE_EVPORTS)
Emmanuel Hocdet0ba4f482019-04-08 16:53:32 +00001697 global.tune.options |= GTUNE_USE_EVPORTS;
1698#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001699#if defined(USE_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001700 global.tune.options |= GTUNE_USE_SPLICE;
1701#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001702#if defined(USE_GETADDRINFO)
1703 global.tune.options |= GTUNE_USE_GAI;
1704#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001705#if defined(SO_REUSEPORT)
1706 global.tune.options |= GTUNE_USE_REUSEPORT;
1707#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001708
1709 pid = getpid();
1710 progname = *argv;
1711 while ((tmp = strchr(progname, '/')) != NULL)
1712 progname = tmp + 1;
1713
Kevinm48936af2010-12-22 16:08:21 +00001714 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +02001715 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +00001716
Willy Tarreaubaaee002006-06-26 02:48:02 +02001717 argc--; argv++;
1718 while (argc > 0) {
1719 char *flag;
1720
1721 if (**argv == '-') {
1722 flag = *argv+1;
1723
1724 /* 1 arg */
1725 if (*flag == 'v') {
1726 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +01001727 if (flag[1] == 'v') /* -vv */
1728 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001729 exit(0);
1730 }
Willy Tarreaue5733232019-05-22 19:24:06 +02001731#if defined(USE_EPOLL)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001732 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +01001733 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001734#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001735#if defined(USE_POLL)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001736 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +01001737 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001738#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001739#if defined(USE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001740 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +01001741 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001742#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001743#if defined(USE_EVPORTS)
Emmanuel Hocdet0ba4f482019-04-08 16:53:32 +00001744 else if (*flag == 'd' && flag[1] == 'v')
1745 global.tune.options &= ~GTUNE_USE_EVPORTS;
1746#endif
Willy Tarreaue5733232019-05-22 19:24:06 +02001747#if defined(USE_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001748 else if (*flag == 'd' && flag[1] == 'S')
1749 global.tune.options &= ~GTUNE_USE_SPLICE;
1750#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001751#if defined(USE_GETADDRINFO)
1752 else if (*flag == 'd' && flag[1] == 'G')
1753 global.tune.options &= ~GTUNE_USE_GAI;
1754#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001755#if defined(SO_REUSEPORT)
1756 else if (*flag == 'd' && flag[1] == 'R')
1757 global.tune.options &= ~GTUNE_USE_REUSEPORT;
1758#endif
Emeric Brun850efd52014-01-29 12:24:34 +01001759 else if (*flag == 'd' && flag[1] == 'V')
1760 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001761 else if (*flag == 'V')
1762 arg_mode |= MODE_VERBOSE;
1763 else if (*flag == 'd' && flag[1] == 'b')
1764 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +02001765 else if (*flag == 'd' && flag[1] == 'M')
1766 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +01001767 else if (*flag == 'd' && flag[1] == 'r')
1768 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001769 else if (*flag == 'd')
1770 arg_mode |= MODE_DEBUG;
1771 else if (*flag == 'c')
1772 arg_mode |= MODE_CHECK;
William Lallemand095ba4c2017-06-01 17:38:50 +02001773 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +02001774 arg_mode |= MODE_DAEMON;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001775 else if (*flag == 'W' && flag[1] == 's') {
Lukas Tribusf46bf952017-11-21 12:39:34 +01001776 arg_mode |= MODE_MWORKER | MODE_FOREGROUND;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001777#if defined(USE_SYSTEMD)
1778 global.tune.options |= GTUNE_USE_SYSTEMD;
1779#else
Christopher Faulet767a84b2017-11-24 16:50:31 +01001780 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 +01001781 usage(progname);
1782#endif
1783 }
William Lallemand095ba4c2017-06-01 17:38:50 +02001784 else if (*flag == 'W')
1785 arg_mode |= MODE_MWORKER;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001786 else if (*flag == 'q')
1787 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001788 else if (*flag == 'x') {
William Lallemand45eff442017-06-19 15:57:55 +02001789 if (argc <= 1 || argv[1][0] == '-') {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001790 ha_alert("Unix socket path expected with the -x flag\n\n");
William Lallemand45eff442017-06-19 15:57:55 +02001791 usage(progname);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001792 }
William Lallemand4fc09692017-06-19 16:37:19 +02001793 if (old_unixsocket)
Christopher Faulet767a84b2017-11-24 16:50:31 +01001794 ha_warning("-x option already set, overwriting the value\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001795 old_unixsocket = argv[1];
William Lallemand4fc09692017-06-19 16:37:19 +02001796
Olivier Houchardf73629d2017-04-05 22:33:04 +02001797 argv++;
1798 argc--;
1799 }
William Lallemande7361152018-10-26 14:47:36 +02001800 else if (*flag == 'S') {
1801 struct wordlist *c;
1802
1803 if (argc <= 1 || argv[1][0] == '-') {
1804 ha_alert("Socket and optional bind parameters expected with the -S flag\n");
1805 usage(progname);
1806 }
1807 if ((c = malloc(sizeof(*c))) == NULL || (c->s = strdup(argv[1])) == NULL) {
1808 ha_alert("Cannot allocate memory\n");
1809 exit(EXIT_FAILURE);
1810 }
1811 LIST_ADD(&mworker_cli_conf, &c->list);
1812
1813 argv++;
1814 argc--;
1815 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001816 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
1817 /* list of pids to finish ('f') or terminate ('t') */
1818
1819 if (flag[1] == 'f')
1820 oldpids_sig = SIGUSR1; /* finish then exit */
1821 else
1822 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001823 while (argc > 1 && argv[1][0] != '-') {
Chris Lane236062f2018-02-05 23:15:44 +00001824 char * endptr = NULL;
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001825 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
1826 if (!oldpids) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001827 ha_alert("Cannot allocate old pid : out of memory.\n");
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001828 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001829 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001830 argc--; argv++;
Chris Lane236062f2018-02-05 23:15:44 +00001831 errno = 0;
1832 oldpids[nb_oldpids] = strtol(*argv, &endptr, 10);
1833 if (errno) {
1834 ha_alert("-%2s option: failed to parse {%s}: %s\n",
1835 flag,
1836 *argv, strerror(errno));
1837 exit(1);
1838 } else if (endptr && strlen(endptr)) {
Willy Tarreau90807112020-02-25 08:16:33 +01001839 while (isspace((unsigned char)*endptr)) endptr++;
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001840 if (*endptr != 0) {
Chris Lane236062f2018-02-05 23:15:44 +00001841 ha_alert("-%2s option: some bytes unconsumed in PID list {%s}\n",
1842 flag, endptr);
1843 exit(1);
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001844 }
Chris Lane236062f2018-02-05 23:15:44 +00001845 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001846 if (oldpids[nb_oldpids] <= 0)
1847 usage(progname);
1848 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001849 }
1850 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001851 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
1852 /* now that's a cfgfile list */
1853 argv++; argc--;
1854 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001855 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001856 ha_alert("Cannot load configuration file/directory %s : %s\n",
1857 *argv,
1858 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +02001859 exit(1);
1860 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001861 argv++; argc--;
1862 }
1863 break;
1864 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001865 else { /* >=2 args */
1866 argv++; argc--;
1867 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001868 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001869
1870 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +02001871 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001872 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +01001873 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001874 case 'N' : cfg_maxpconn = atol(*argv); break;
William Lallemanddaf4cd22018-04-17 16:46:13 +02001875 case 'L' :
1876 strncpy(localpeer, *argv, sizeof(localpeer) - 1);
1877 setenv("HAPROXY_LOCALPEER", localpeer, 1);
1878 break;
Willy Tarreau5d01a632009-06-22 16:02:30 +02001879 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +02001880 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001881 ha_alert("Cannot load configuration file/directory %s : %s\n",
1882 *argv,
1883 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +02001884 exit(1);
1885 }
Willy Tarreau5d01a632009-06-22 16:02:30 +02001886 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001887 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001888 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001889 }
1890 }
1891 }
1892 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001893 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001894 argv++; argc--;
1895 }
1896
Christopher Faulete3a5e352017-10-24 13:53:54 +02001897 global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
1898 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001899
William Lallemand944e6192018-11-21 15:48:31 +01001900 if (getenv("HAPROXY_MWORKER_WAIT_ONLY")) {
William Lallemandcb11fd22017-06-01 17:38:52 +02001901 unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
William Lallemand944e6192018-11-21 15:48:31 +01001902 global.mode |= MODE_MWORKER_WAIT;
1903 global.mode &= ~MODE_MWORKER;
William Lallemandcb11fd22017-06-01 17:38:52 +02001904 }
1905
1906 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") != NULL)) {
1907 atexit_flag = 1;
1908 atexit(reexec_on_failure);
1909 }
1910
Willy Tarreau576132e2011-09-10 19:26:56 +02001911 if (change_dir && chdir(change_dir) < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001912 ha_alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
Willy Tarreau576132e2011-09-10 19:26:56 +02001913 exit(1);
1914 }
1915
Willy Tarreaubaaee002006-06-26 02:48:02 +02001916 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001917
1918 init_default_instance();
1919
William Lallemand944e6192018-11-21 15:48:31 +01001920 /* in wait mode, we don't try to read the configuration files */
1921 if (!(global.mode & MODE_MWORKER_WAIT)) {
William Lallemand7b302d82019-05-20 11:15:37 +02001922 struct buffer *trash = get_trash_chunk();
Willy Tarreauc4382422009-12-06 13:10:44 +01001923
William Lallemand944e6192018-11-21 15:48:31 +01001924 /* handle cfgfiles that are actually directories */
1925 cfgfiles_expand_directories();
1926
1927 if (LIST_ISEMPTY(&cfg_cfgfiles))
1928 usage(progname);
1929
1930
1931 list_for_each_entry(wl, &cfg_cfgfiles, list) {
1932 int ret;
1933
William Lallemand7b302d82019-05-20 11:15:37 +02001934 if (trash->data)
1935 chunk_appendf(trash, ";");
1936
1937 chunk_appendf(trash, "%s", wl->s);
1938
William Lallemand944e6192018-11-21 15:48:31 +01001939 ret = readcfgfile(wl->s);
1940 if (ret == -1) {
1941 ha_alert("Could not open configuration file %s : %s\n",
1942 wl->s, strerror(errno));
1943 exit(1);
1944 }
1945 if (ret & (ERR_ABORT|ERR_FATAL))
1946 ha_alert("Error(s) found in configuration file : %s\n", wl->s);
1947 err_code |= ret;
1948 if (err_code & ERR_ABORT)
1949 exit(1);
Willy Tarreauc4382422009-12-06 13:10:44 +01001950 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001951
William Lallemand944e6192018-11-21 15:48:31 +01001952 /* do not try to resolve arguments nor to spot inconsistencies when
1953 * the configuration contains fatal errors caused by files not found
1954 * or failed memory allocations.
1955 */
1956 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1957 ha_alert("Fatal errors found in configuration.\n");
1958 exit(1);
1959 }
William Lallemand7b302d82019-05-20 11:15:37 +02001960 if (trash->data)
1961 setenv("HAPROXY_CFGFILES", trash->area, 1);
1962
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001963 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001964 if (global.mode & MODE_MWORKER) {
1965 int proc;
William Lallemand16dd1b32018-11-19 18:46:18 +01001966 struct mworker_proc *tmproc;
1967
William Lallemand482f9a92019-04-12 16:15:00 +02001968 setenv("HAPROXY_MWORKER", "1", 1);
1969
William Lallemand16dd1b32018-11-19 18:46:18 +01001970 if (getenv("HAPROXY_MWORKER_REEXEC") == NULL) {
1971
William Lallemandf3a86832019-04-01 11:29:58 +02001972 tmproc = calloc(1, sizeof(*tmproc));
William Lallemand16dd1b32018-11-19 18:46:18 +01001973 if (!tmproc) {
1974 ha_alert("Cannot allocate process structures.\n");
1975 exit(EXIT_FAILURE);
1976 }
William Lallemand8f7069a2019-04-12 16:09:23 +02001977 tmproc->options |= PROC_O_TYPE_MASTER; /* master */
William Lallemand16dd1b32018-11-19 18:46:18 +01001978 tmproc->reloads = 0;
1979 tmproc->relative_pid = 0;
1980 tmproc->pid = pid;
1981 tmproc->timestamp = start_date.tv_sec;
1982 tmproc->ipc_fd[0] = -1;
1983 tmproc->ipc_fd[1] = -1;
1984
1985 proc_self = tmproc;
1986
1987 LIST_ADDQ(&proc_list, &tmproc->list);
1988 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001989
1990 for (proc = 0; proc < global.nbproc; proc++) {
William Lallemandce83b4a2018-10-26 14:47:30 +02001991
William Lallemandf3a86832019-04-01 11:29:58 +02001992 tmproc = calloc(1, sizeof(*tmproc));
William Lallemandce83b4a2018-10-26 14:47:30 +02001993 if (!tmproc) {
1994 ha_alert("Cannot allocate process structures.\n");
1995 exit(EXIT_FAILURE);
1996 }
1997
William Lallemand8f7069a2019-04-12 16:09:23 +02001998 tmproc->options |= PROC_O_TYPE_WORKER; /* worker */
William Lallemandce83b4a2018-10-26 14:47:30 +02001999 tmproc->pid = -1;
2000 tmproc->reloads = 0;
William Lallemande3683302018-11-19 18:46:17 +01002001 tmproc->timestamp = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02002002 tmproc->relative_pid = 1 + proc;
William Lallemand550db6d2018-11-06 17:37:12 +01002003 tmproc->ipc_fd[0] = -1;
2004 tmproc->ipc_fd[1] = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02002005
2006 if (mworker_cli_sockpair_new(tmproc, proc) < 0) {
2007 exit(EXIT_FAILURE);
2008 }
2009
2010 LIST_ADDQ(&proc_list, &tmproc->list);
2011 }
William Lallemand944e6192018-11-21 15:48:31 +01002012 }
2013 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
2014 struct wordlist *it, *c;
2015
William Lallemand1b663612018-10-26 14:47:33 +02002016 mworker_env_to_proc_list(); /* get the info of the children in the env */
William Lallemand8a022572018-10-26 14:47:35 +02002017
William Lallemande7361152018-10-26 14:47:36 +02002018
William Lallemand550db6d2018-11-06 17:37:12 +01002019 if (!LIST_ISEMPTY(&mworker_cli_conf)) {
William Lallemande7361152018-10-26 14:47:36 +02002020
William Lallemand550db6d2018-11-06 17:37:12 +01002021 if (mworker_cli_proxy_create() < 0) {
William Lallemande7361152018-10-26 14:47:36 +02002022 ha_alert("Can't create the master's CLI.\n");
2023 exit(EXIT_FAILURE);
2024 }
William Lallemande7361152018-10-26 14:47:36 +02002025
William Lallemand550db6d2018-11-06 17:37:12 +01002026 list_for_each_entry_safe(c, it, &mworker_cli_conf, list) {
2027
2028 if (mworker_cli_proxy_new_listener(c->s) < 0) {
2029 ha_alert("Can't create the master's CLI.\n");
2030 exit(EXIT_FAILURE);
2031 }
2032 LIST_DEL(&c->list);
2033 free(c->s);
2034 free(c);
2035 }
2036 }
William Lallemandce83b4a2018-10-26 14:47:30 +02002037 }
2038
Willy Tarreaubb925012009-07-23 13:36:36 +02002039 err_code |= check_config_validity();
Christopher Fauletc1692962019-08-12 09:51:07 +02002040 for (px = proxies_list; px; px = px->next) {
2041 struct server *srv;
2042 struct post_proxy_check_fct *ppcf;
2043 struct post_server_check_fct *pscf;
2044
2045 list_for_each_entry(pscf, &post_server_check_list, list) {
2046 for (srv = px->srv; srv; srv = srv->next)
2047 err_code |= pscf->fct(srv);
2048 }
2049 list_for_each_entry(ppcf, &post_proxy_check_list, list)
2050 err_code |= ppcf->fct(px);
2051 }
Willy Tarreaubb925012009-07-23 13:36:36 +02002052 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002053 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02002054 exit(1);
2055 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002056
Carl Henrik Lundef91ac192020-02-27 16:45:50 +01002057 err_code |= pattern_finalize_config();
2058 if (err_code & (ERR_ABORT|ERR_FATAL)) {
2059 ha_alert("Failed to finalize pattern config.\n");
2060 exit(1);
2061 }
Willy Tarreau0f936722019-04-11 14:47:08 +02002062
Willy Tarreau70060452015-12-14 12:46:07 +01002063 /* recompute the amount of per-process memory depending on nbproc and
2064 * the shared SSL cache size (allowed to exist in all processes).
2065 */
2066 if (global.rlimit_memmax_all) {
2067#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
2068 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
2069
2070 global.rlimit_memmax =
2071 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
2072 ssl_cache_bytes) / global.nbproc +
2073 ssl_cache_bytes + 1048575LL) / 1048576LL;
2074#else
2075 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
2076#endif
2077 }
2078
Willy Tarreaue5733232019-05-22 19:24:06 +02002079#ifdef USE_NS
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01002080 err_code |= netns_init();
2081 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002082 ha_alert("Failed to initialize namespace support.\n");
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01002083 exit(1);
2084 }
2085#endif
2086
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01002087 /* Apply server states */
2088 apply_server_state();
2089
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002090 for (px = proxies_list; px; px = px->next)
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01002091 srv_compute_all_admin_states(px);
2092
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01002093 /* Apply servers' configured address */
2094 err_code |= srv_init_addr();
2095 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002096 ha_alert("Failed to initialize server(s) addr.\n");
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01002097 exit(1);
2098 }
2099
Willy Tarreaubaaee002006-06-26 02:48:02 +02002100 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01002101 struct peers *pr;
2102 struct proxy *px;
2103
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002104 for (pr = cfg_peers; pr; pr = pr->next)
Willy Tarreau8b15ba12012-02-02 17:48:18 +01002105 if (pr->peers_fe)
2106 break;
2107
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002108 for (px = proxies_list; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02002109 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01002110 break;
2111
2112 if (pr || px) {
2113 /* At least one peer or one listener has been found */
2114 qfprintf(stdout, "Configuration file is valid\n");
2115 exit(0);
2116 }
2117 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
2118 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002119 }
Willy Tarreaue9b26022011-08-01 20:57:55 +02002120
Willy Tarreau8263d2b2012-08-28 00:06:31 +02002121 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02002122 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02002123
Willy Tarreaue6945732016-12-21 19:57:00 +01002124 list_for_each_entry(pcf, &post_check_list, list) {
2125 err_code |= pcf->fct();
2126 if (err_code & (ERR_ABORT|ERR_FATAL))
2127 exit(1);
2128 }
2129
Willy Tarreaubaaee002006-06-26 02:48:02 +02002130 if (cfg_maxconn > 0)
2131 global.maxconn = cfg_maxconn;
2132
Willy Tarreau8d687d82019-03-01 09:39:42 +01002133 if (global.stats_fe)
2134 global.maxsock += global.stats_fe->maxconn;
2135
2136 if (cfg_peers) {
2137 /* peers also need to bypass global maxconn */
2138 struct peers *p = cfg_peers;
2139
2140 for (p = cfg_peers; p; p = p->next)
2141 if (p->peers_fe)
2142 global.maxsock += p->peers_fe->maxconn;
2143 }
2144
Willy Tarreaubaaee002006-06-26 02:48:02 +02002145 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02002146 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002147 global.pidfile = strdup(cfg_pidfile);
2148 }
2149
Willy Tarreaud0256482015-01-15 21:45:22 +01002150 /* Now we want to compute the maxconn and possibly maxsslconn values.
Willy Tarreauac350932019-03-01 15:43:14 +01002151 * It's a bit tricky. Maxconn defaults to the pre-computed value based
2152 * on rlim_fd_cur and the number of FDs in use due to the configuration,
2153 * and maxsslconn defaults to DEFAULT_MAXSSLCONN. On top of that we can
2154 * enforce a lower limit based on memmax.
Willy Tarreaud0256482015-01-15 21:45:22 +01002155 *
2156 * If memmax is set, then it depends on which values are set. If
2157 * maxsslconn is set, we use memmax to determine how many cleartext
2158 * connections may be added, and set maxconn to the sum of the two.
2159 * If maxconn is set and not maxsslconn, maxsslconn is computed from
2160 * the remaining amount of memory between memmax and the cleartext
2161 * connections. If neither are set, then it is considered that all
2162 * connections are SSL-capable, and maxconn is computed based on this,
2163 * then maxsslconn accordingly. We need to know if SSL is used on the
2164 * frontends, backends, or both, because when it's used on both sides,
2165 * we need twice the value for maxsslconn, but we only count the
2166 * handshake once since it is not performed on the two sides at the
2167 * same time (frontend-side is terminated before backend-side begins).
2168 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01002169 * ssl_handshake_cost during its initialization. In any case, if
2170 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
2171 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01002172 */
Willy Tarreauac350932019-03-01 15:43:14 +01002173 ideal_maxconn = compute_ideal_maxconn();
2174
Willy Tarreaud0256482015-01-15 21:45:22 +01002175 if (!global.rlimit_memmax) {
2176 if (global.maxconn == 0) {
Willy Tarreauac350932019-03-01 15:43:14 +01002177 global.maxconn = ideal_maxconn;
Willy Tarreaud0256482015-01-15 21:45:22 +01002178 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
2179 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
2180 }
2181 }
2182#ifdef USE_OPENSSL
2183 else if (!global.maxconn && !global.maxsslconn &&
2184 (global.ssl_used_frontend || global.ssl_used_backend)) {
2185 /* memmax is set, compute everything automatically. Here we want
2186 * to ensure that all SSL connections will be served. We take
2187 * care of the number of sides where SSL is used, and consider
2188 * the worst case : SSL used on both sides and doing a handshake
2189 * simultaneously. Note that we can't have more than maxconn
2190 * handshakes at a time by definition, so for the worst case of
2191 * two SSL conns per connection, we count a single handshake.
2192 */
2193 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
2194 int64_t mem = global.rlimit_memmax * 1048576ULL;
Willy Tarreau304e17e2020-03-10 17:54:54 +01002195 int retried = 0;
Willy Tarreaud0256482015-01-15 21:45:22 +01002196
2197 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
2198 mem -= global.maxzlibmem;
2199 mem = mem * MEM_USABLE_RATIO;
2200
Willy Tarreau304e17e2020-03-10 17:54:54 +01002201 /* Principle: we test once to set maxconn according to the free
2202 * memory. If it results in values the system rejects, we try a
2203 * second time by respecting rlim_fd_max. If it fails again, we
2204 * go back to the initial value and will let the final code
2205 * dealing with rlimit report the error. That's up to 3 attempts.
2206 */
2207 do {
2208 global.maxconn = mem /
2209 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
2210 sides * global.ssl_session_max_cost + // SSL buffers, one per side
2211 global.ssl_handshake_max_cost); // 1 handshake per connection max
Willy Tarreaud0256482015-01-15 21:45:22 +01002212
Willy Tarreau304e17e2020-03-10 17:54:54 +01002213 if (retried == 1)
2214 global.maxconn = MIN(global.maxconn, ideal_maxconn);
2215 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01002216#ifdef SYSTEM_MAXCONN
Willy Tarreau304e17e2020-03-10 17:54:54 +01002217 if (global.maxconn > SYSTEM_MAXCONN)
2218 global.maxconn = SYSTEM_MAXCONN;
Willy Tarreau474b96a2015-01-28 19:03:21 +01002219#endif /* SYSTEM_MAXCONN */
Willy Tarreau304e17e2020-03-10 17:54:54 +01002220 global.maxsslconn = sides * global.maxconn;
2221
2222 if (check_if_maxsock_permitted(compute_ideal_maxsock(global.maxconn)))
2223 break;
2224 } while (retried++ < 2);
2225
Willy Tarreaud0256482015-01-15 21:45:22 +01002226 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
2227 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
2228 global.maxconn, global.maxsslconn);
2229 }
2230 else if (!global.maxsslconn &&
2231 (global.ssl_used_frontend || global.ssl_used_backend)) {
2232 /* memmax and maxconn are known, compute maxsslconn automatically.
2233 * maxsslconn being forced, we don't know how many of it will be
2234 * on each side if both sides are being used. The worst case is
2235 * when all connections use only one SSL instance because
2236 * handshakes may be on two sides at the same time.
2237 */
2238 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
2239 int64_t mem = global.rlimit_memmax * 1048576ULL;
2240 int64_t sslmem;
2241
2242 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
2243 mem -= global.maxzlibmem;
2244 mem = mem * MEM_USABLE_RATIO;
2245
Willy Tarreau87b09662015-04-03 00:22:06 +02002246 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01002247 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
2248 global.maxsslconn = round_2dig(global.maxsslconn);
2249
2250 if (sslmem <= 0 || global.maxsslconn < sides) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002251 ha_alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
2252 "high for the global.memmax value (%d MB). The absolute maximum possible value "
2253 "without SSL is %d, but %d was found and SSL is in use.\n",
2254 global.rlimit_memmax,
2255 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
2256 global.maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01002257 exit(1);
2258 }
2259
2260 if (global.maxsslconn > sides * global.maxconn)
2261 global.maxsslconn = sides * global.maxconn;
2262
2263 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
2264 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
2265 }
2266#endif
2267 else if (!global.maxconn) {
2268 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
2269 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
2270 int64_t mem = global.rlimit_memmax * 1048576ULL;
2271 int64_t clearmem;
Willy Tarreau304e17e2020-03-10 17:54:54 +01002272 int retried = 0;
Willy Tarreaud0256482015-01-15 21:45:22 +01002273
2274 if (global.ssl_used_frontend || global.ssl_used_backend)
2275 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
2276
2277 mem -= global.maxzlibmem;
2278 mem = mem * MEM_USABLE_RATIO;
2279
2280 clearmem = mem;
2281 if (sides)
2282 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
2283
Willy Tarreau304e17e2020-03-10 17:54:54 +01002284 /* Principle: we test once to set maxconn according to the free
2285 * memory. If it results in values the system rejects, we try a
2286 * second time by respecting rlim_fd_max. If it fails again, we
2287 * go back to the initial value and will let the final code
2288 * dealing with rlimit report the error. That's up to 3 attempts.
2289 */
2290 do {
2291 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
2292 if (retried == 1)
2293 global.maxconn = MIN(global.maxconn, ideal_maxconn);
2294 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01002295#ifdef SYSTEM_MAXCONN
Willy Tarreau304e17e2020-03-10 17:54:54 +01002296 if (global.maxconn > SYSTEM_MAXCONN)
2297 global.maxconn = SYSTEM_MAXCONN;
Willy Tarreau474b96a2015-01-28 19:03:21 +01002298#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01002299
Willy Tarreau304e17e2020-03-10 17:54:54 +01002300 if (clearmem <= 0 || !global.maxconn) {
2301 ha_alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
2302 "high for the global.memmax value (%d MB). The absolute maximum possible value "
2303 "is %d, but %d was found.\n",
2304 global.rlimit_memmax,
Christopher Faulet767a84b2017-11-24 16:50:31 +01002305 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
Willy Tarreau304e17e2020-03-10 17:54:54 +01002306 global.maxsslconn);
2307 exit(1);
2308 }
2309
2310 if (check_if_maxsock_permitted(compute_ideal_maxsock(global.maxconn)))
2311 break;
2312 } while (retried++ < 2);
Willy Tarreaud0256482015-01-15 21:45:22 +01002313
2314 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2315 if (sides && global.maxsslconn > sides * global.maxconn) {
2316 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
2317 "to be limited to %d. Better reduce global.maxsslconn to get more "
2318 "room for extra connections.\n", global.maxsslconn, global.maxconn);
2319 }
2320 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
2321 }
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002322 }
2323
Willy Tarreaua409f302020-03-10 17:08:53 +01002324 global.maxsock = compute_ideal_maxsock(global.maxconn);
2325 global.hardmaxconn = global.maxconn;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002326
Olivier Houchard88698d92019-04-16 19:07:22 +02002327 /* update connection pool thresholds */
2328 global.tune.pool_low_count = ((long long)global.maxsock * global.tune.pool_low_ratio + 99) / 100;
2329 global.tune.pool_high_count = ((long long)global.maxsock * global.tune.pool_high_ratio + 99) / 100;
2330
Willy Tarreauc8d5b952019-02-27 17:25:52 +01002331 proxy_adjust_all_maxconn();
2332
Willy Tarreau1db37712007-06-03 17:16:49 +02002333 if (global.tune.maxpollevents <= 0)
2334 global.tune.maxpollevents = MAX_POLL_EVENTS;
2335
Olivier Houchard1599b802018-05-24 18:59:04 +02002336 if (global.tune.runqueue_depth <= 0)
2337 global.tune.runqueue_depth = RUNQUEUE_DEPTH;
2338
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01002339 if (global.tune.recv_enough == 0)
2340 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
2341
Willy Tarreau27a674e2009-08-17 07:23:33 +02002342 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
2343 global.tune.maxrewrite = global.tune.bufsize / 2;
2344
Willy Tarreaubaaee002006-06-26 02:48:02 +02002345 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
2346 /* command line debug mode inhibits configuration mode */
William Lallemand095ba4c2017-06-01 17:38:50 +02002347 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002348 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
2349 }
2350
William Lallemand095ba4c2017-06-01 17:38:50 +02002351 if (arg_mode & MODE_DAEMON) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002352 /* command line daemon mode inhibits foreground and debug modes mode */
2353 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
William Lallemand095ba4c2017-06-01 17:38:50 +02002354 global.mode |= arg_mode & MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002355 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002356
2357 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02002358
William Lallemand095ba4c2017-06-01 17:38:50 +02002359 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002360 ha_warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
William Lallemand095ba4c2017-06-01 17:38:50 +02002361 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002362 }
2363
William Lallemand095ba4c2017-06-01 17:38:50 +02002364 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_MWORKER))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002365 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002366 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 +02002367 global.nbproc = 1;
2368 }
2369
2370 if (global.nbproc < 1)
2371 global.nbproc = 1;
2372
Christopher Fauletbe0faa22017-08-29 15:37:10 +02002373 if (global.nbthread < 1)
2374 global.nbthread = 1;
2375
Christopher Faulet3ef26392017-08-29 16:46:57 +02002376 /* Realloc trash buffers because global.tune.bufsize may have changed */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002377 if (!init_trash_buffers(0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002378 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet3ef26392017-08-29 16:46:57 +02002379 exit(1);
2380 }
2381
Christopher Faulet96d44832017-11-14 22:02:30 +01002382 if (!init_log_buffers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002383 ha_alert("failed to initialize log buffers.\n");
Christopher Faulet96d44832017-11-14 22:02:30 +01002384 exit(1);
2385 }
2386
Willy Tarreauef1d1f82007-04-16 00:25:25 +02002387 /*
2388 * Note: we could register external pollers here.
2389 * Built-in pollers have been registered before main().
2390 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02002391
Willy Tarreau43b78992009-01-25 15:42:27 +01002392 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02002393 disable_poller("kqueue");
2394
Emmanuel Hocdet0ba4f482019-04-08 16:53:32 +00002395 if (!(global.tune.options & GTUNE_USE_EVPORTS))
2396 disable_poller("evports");
2397
Willy Tarreau43b78992009-01-25 15:42:27 +01002398 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002399 disable_poller("epoll");
2400
Willy Tarreau43b78992009-01-25 15:42:27 +01002401 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002402 disable_poller("poll");
2403
Willy Tarreau43b78992009-01-25 15:42:27 +01002404 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002405 disable_poller("select");
2406
2407 /* Note: we could disable any poller by name here */
2408
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002409 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02002410 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002411 fprintf(stderr, "\n");
2412 list_filters(stderr);
2413 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002414
Willy Tarreau4f60f162007-04-08 16:39:58 +02002415 if (!init_pollers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002416 ha_alert("No polling mechanism available.\n"
2417 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
2418 " is too low on this platform to support maxconn and the number of listeners\n"
2419 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
2420 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
2421 " global maxconn setting to accommodate the system's limitation. For reference,\n"
2422 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
2423 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
2424 " check build settings using 'haproxy -vv'.\n\n",
2425 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002426 exit(1);
2427 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002428 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2429 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002430 }
2431
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002432 if (!global.node)
2433 global.node = strdup(hostname);
2434
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01002435 if (!hlua_post_init())
2436 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01002437
Maxime de Roucy0f503922016-05-13 23:52:55 +02002438 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002439}
2440
Simon Horman6fb82592011-07-15 13:14:11 +09002441static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09002442{
Simon Hormanac821422011-07-15 13:14:09 +09002443 struct acl_term_suite *suite, *suiteb;
2444 struct acl_term *term, *termb;
2445
Simon Horman6fb82592011-07-15 13:14:11 +09002446 if (!cond)
2447 return;
2448
2449 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
2450 list_for_each_entry_safe(term, termb, &suite->terms, list) {
2451 LIST_DEL(&term->list);
2452 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09002453 }
Simon Horman6fb82592011-07-15 13:14:11 +09002454 LIST_DEL(&suite->list);
2455 free(suite);
2456 }
2457
2458 free(cond);
2459}
2460
Christopher Fauletcb550132019-12-17 11:25:46 +01002461static void deinit_act_rules(struct list *rules)
Simon Horman6fb82592011-07-15 13:14:11 +09002462{
Christopher Fauletcb550132019-12-17 11:25:46 +01002463 struct act_rule *rule, *ruleb;
Simon Horman6fb82592011-07-15 13:14:11 +09002464
Christopher Fauletcb550132019-12-17 11:25:46 +01002465 list_for_each_entry_safe(rule, ruleb, rules, list) {
2466 LIST_DEL(&rule->list);
2467 deinit_acl_cond(rule->cond);
Christopher Faulet58b35642019-12-17 11:48:42 +01002468 if (rule->release_ptr)
2469 rule->release_ptr(rule);
Christopher Fauletcb550132019-12-17 11:25:46 +01002470 free(rule);
Simon Hormanac821422011-07-15 13:14:09 +09002471 }
2472}
2473
Simon Horman6fb82592011-07-15 13:14:11 +09002474static void deinit_stick_rules(struct list *rules)
2475{
2476 struct sticking_rule *rule, *ruleb;
2477
2478 list_for_each_entry_safe(rule, ruleb, rules, list) {
2479 LIST_DEL(&rule->list);
2480 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02002481 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09002482 free(rule);
2483 }
2484}
2485
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002486void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002487{
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002488 struct proxy *p = proxies_list, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002489 struct cap_hdr *h,*h_next;
2490 struct server *s,*s_next;
2491 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002492 struct acl_cond *cond, *condb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002493 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002494 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002495 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002496 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002497 struct wordlist *wl, *wlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002498 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02002499 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01002500 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002501 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002502 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01002503 struct post_deinit_fct *pdf;
Christopher Faulet3ea5cbe2019-07-31 08:44:12 +02002504 struct proxy_deinit_fct *pxdf;
2505 struct server_deinit_fct *srvdf;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002506
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002507 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002508 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02002509 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002510 free(p->id);
2511 free(p->check_req);
2512 free(p->cookie_name);
2513 free(p->cookie_domain);
Christopher Faulet2f533902020-01-21 11:06:48 +01002514 free(p->cookie_attrs);
Willy Tarreau4c03d1c2019-01-14 15:23:54 +01002515 free(p->lbprm.arg_str);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002516 free(p->capture_name);
2517 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09002518 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02002519 if (p->conf.logformat_string != default_http_log_format &&
2520 p->conf.logformat_string != default_tcp_log_format &&
2521 p->conf.logformat_string != clf_http_log_format)
2522 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02002523
Willy Tarreau62a61232013-04-12 18:13:46 +02002524 free(p->conf.lfs_file);
2525 free(p->conf.uniqueid_format_string);
2526 free(p->conf.uif_file);
Willy Tarreau0cac26c2019-01-14 16:55:42 +01002527 if ((p->lbprm.algo & BE_LB_LKUP) == BE_LB_LKUP_MAP)
2528 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002529
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002530 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
2531 free(p->conf.logformat_sd_string);
2532 free(p->conf.lfsd_file);
2533
Willy Tarreaub80c2302007-11-30 20:51:32 +01002534 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
2535 LIST_DEL(&cond->list);
2536 prune_acl_cond(cond);
2537 free(cond);
2538 }
2539
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002540 /* build a list of unique uri_auths */
2541 if (!ua)
2542 ua = p->uri_auth;
2543 else {
2544 /* check if p->uri_auth is unique */
2545 for (uap = ua; uap; uap=uap->next)
2546 if (uap == p->uri_auth)
2547 break;
2548
Willy Tarreauaccc4e12008-06-24 11:14:45 +02002549 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002550 /* add it, if it is */
2551 p->uri_auth->next = ua;
2552 ua = p->uri_auth;
2553 }
2554 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002555
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002556 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
2557 LIST_DEL(&acl->list);
2558 prune_acl(acl);
2559 free(acl);
2560 }
2561
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002562 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
2563 LIST_DEL(&srule->list);
2564 prune_acl_cond(srule->cond);
2565 free(srule->cond);
2566 free(srule);
2567 }
2568
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002569 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
2570 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002571 if (rule->cond) {
2572 prune_acl_cond(rule->cond);
2573 free(rule->cond);
2574 }
Dragan Dosen2a7c20f2019-04-30 00:38:36 +02002575 free(rule->file);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002576 free(rule);
2577 }
2578
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002579 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
2580 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01002581 if (rdr->cond) {
2582 prune_acl_cond(rdr->cond);
2583 free(rdr->cond);
2584 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002585 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01002586 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
2587 LIST_DEL(&lf->list);
2588 free(lf);
2589 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002590 free(rdr);
2591 }
2592
William Lallemand0f99e342011-10-12 17:50:54 +02002593 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
2594 LIST_DEL(&log->list);
2595 free(log);
2596 }
2597
William Lallemand723b73a2012-02-08 16:37:49 +01002598 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
2599 LIST_DEL(&lf->list);
Dragan Dosen61302da2019-04-30 00:40:02 +02002600 release_sample_expr(lf->expr);
2601 free(lf->arg);
William Lallemand723b73a2012-02-08 16:37:49 +01002602 free(lf);
2603 }
2604
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002605 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
2606 LIST_DEL(&lf->list);
Dragan Dosen61302da2019-04-30 00:40:02 +02002607 release_sample_expr(lf->expr);
2608 free(lf->arg);
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002609 free(lf);
2610 }
2611
Christopher Fauletcb550132019-12-17 11:25:46 +01002612 deinit_act_rules(&p->tcp_req.inspect_rules);
2613 deinit_act_rules(&p->tcp_rep.inspect_rules);
2614 deinit_act_rules(&p->tcp_req.l4_rules);
2615 deinit_act_rules(&p->tcp_req.l5_rules);
2616 deinit_act_rules(&p->http_req_rules);
2617 deinit_act_rules(&p->http_res_rules);
Christopher Faulet6d0c3df2020-01-22 09:26:35 +01002618 deinit_act_rules(&p->http_after_res_rules);
Simon Hormanac821422011-07-15 13:14:09 +09002619
Simon Horman6fb82592011-07-15 13:14:11 +09002620 deinit_stick_rules(&p->storersp_rules);
2621 deinit_stick_rules(&p->sticking_rules);
2622
Willy Tarreaubaaee002006-06-26 02:48:02 +02002623 h = p->req_cap;
2624 while (h) {
2625 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002626 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002627 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002628 free(h);
2629 h = h_next;
2630 }/* end while(h) */
2631
2632 h = p->rsp_cap;
2633 while (h) {
2634 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002635 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002636 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002637 free(h);
2638 h = h_next;
2639 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002640
Willy Tarreaubaaee002006-06-26 02:48:02 +02002641 s = p->srv;
2642 while (s) {
2643 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002644
Willy Tarreauf6562792019-05-07 19:05:35 +02002645 task_destroy(s->check.task);
2646 task_destroy(s->agent.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002647
Willy Tarreau3c39a7d2019-06-14 14:42:29 +02002648 if (s->check.wait_list.tasklet)
2649 tasklet_free(s->check.wait_list.tasklet);
2650 if (s->agent.wait_list.tasklet)
2651 tasklet_free(s->agent.wait_list.tasklet);
Dragan Dosen026ef572019-04-30 00:56:20 +02002652
Willy Tarreauf6562792019-05-07 19:05:35 +02002653 task_destroy(s->warmup);
Willy Tarreau2e993902011-10-31 11:53:20 +01002654
Willy Tarreaua534fea2008-08-03 12:19:50 +02002655 free(s->id);
2656 free(s->cookie);
Willy Tarreauc9fa0482018-07-10 17:43:27 +02002657 free(s->check.bi.area);
2658 free(s->check.bo.area);
2659 free(s->agent.bi.area);
2660 free(s->agent.bo.area);
James Brown55f9ff12015-10-21 18:19:05 -07002661 free(s->agent.send_string);
Christopher Faulet67957bd2017-09-27 11:00:59 +02002662 free(s->hostname_dn);
Sárközi, László34c01792014-09-05 10:08:23 +02002663 free((char*)s->conf.file);
Olivier Houchard7fc3be72018-11-22 18:50:54 +01002664 free(s->idle_conns);
Olivier Houchard7fc3be72018-11-22 18:50:54 +01002665 free(s->safe_conns);
Olivier Houcharddc2f2752020-02-13 19:12:07 +01002666 free(s->available_conns);
Olivier Houchardf1314812019-02-18 16:41:17 +01002667 free(s->curr_idle_thr);
Willy Tarreau17d45382016-12-22 21:16:08 +01002668
2669 if (s->use_ssl || s->check.use_ssl) {
2670 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
2671 xprt_get(XPRT_SSL)->destroy_srv(s);
2672 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002673 HA_SPIN_DESTROY(&s->lock);
Christopher Faulet3ea5cbe2019-07-31 08:44:12 +02002674
2675 list_for_each_entry(srvdf, &server_deinit_list, list)
2676 srvdf->fct(s);
2677
Willy Tarreaubaaee002006-06-26 02:48:02 +02002678 free(s);
2679 s = s_next;
2680 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002681
Willy Tarreau4348fad2012-09-20 16:48:07 +02002682 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002683 /*
2684 * Zombie proxy, the listener just pretend to be up
2685 * because they still hold an opened fd.
2686 * Close it and give the listener its real state.
2687 */
2688 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
2689 close(l->fd);
2690 l->state = LI_INIT;
2691 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02002692 unbind_listener(l);
2693 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002694 LIST_DEL(&l->by_fe);
2695 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002696 free(l->name);
2697 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002698 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002699 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002700
Willy Tarreau4348fad2012-09-20 16:48:07 +02002701 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002702 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01002703 if (bind_conf->xprt->destroy_bind_conf)
2704 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002705 free(bind_conf->file);
2706 free(bind_conf->arg);
2707 LIST_DEL(&bind_conf->by_fe);
2708 free(bind_conf);
2709 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02002710
Christopher Fauletd7c91962015-04-30 11:48:27 +02002711 flt_deinit(p);
2712
Christopher Faulet3ea5cbe2019-07-31 08:44:12 +02002713 list_for_each_entry(pxdf, &proxy_deinit_list, list)
2714 pxdf->fct(p);
2715
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002716 free(p->desc);
2717 free(p->fwdfor_hdr_name);
2718
Olivier Houchard3f795f72019-04-17 22:51:06 +02002719 task_destroy(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01002720
Willy Tarreaubafbe012017-11-24 17:34:44 +01002721 pool_destroy(p->req_cap_pool);
2722 pool_destroy(p->rsp_cap_pool);
Dragan Dosen7d61a332019-05-07 14:16:18 +02002723 if (p->table)
2724 pool_destroy(p->table->pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002725
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002726 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002727 p = p->next;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002728 HA_SPIN_DESTROY(&p0->lbprm.lock);
2729 HA_SPIN_DESTROY(&p0->lock);
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002730 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002731 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02002732
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002733 while (ua) {
2734 uap = ua;
2735 ua = ua->next;
2736
Willy Tarreaua534fea2008-08-03 12:19:50 +02002737 free(uap->uri_prefix);
2738 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002739 free(uap->node);
2740 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002741
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002742 userlist_free(uap->userlist);
Christopher Fauletcb550132019-12-17 11:25:46 +01002743 deinit_act_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002744
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002745 free(uap);
2746 }
2747
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002748 userlist_free(userlist);
2749
David Carlier834cb2e2015-09-25 12:02:25 +01002750 cfg_unregister_sections();
2751
Christopher Faulet0132d062017-07-26 15:33:35 +02002752 deinit_log_buffers();
David Carlier834cb2e2015-09-25 12:02:25 +01002753
Willy Tarreaudd815982007-10-16 12:25:14 +02002754 protocol_unbind_all();
2755
Willy Tarreau05554e62016-12-21 20:46:26 +01002756 list_for_each_entry(pdf, &post_deinit_list, list)
2757 pdf->fct();
2758
Joe Williamsdf5b38f2010-12-29 17:05:48 +01002759 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02002760 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002761 free(global.chroot); global.chroot = NULL;
2762 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002763 free(global.node); global.node = NULL;
2764 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002765 free(oldpids); oldpids = NULL;
Olivier Houchard3f795f72019-04-17 22:51:06 +02002766 task_destroy(idle_conn_task);
Olivier Houchard9ea5d362019-02-14 18:29:09 +01002767 idle_conn_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002768
William Lallemand0f99e342011-10-12 17:50:54 +02002769 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
2770 LIST_DEL(&log->list);
2771 free(log);
2772 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01002773 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02002774 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01002775 LIST_DEL(&wl->list);
2776 free(wl);
2777 }
2778
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002779 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
2780 if (bol->must_free)
2781 free((void *)bol->str);
2782 LIST_DEL(&bol->list);
2783 free(bol);
2784 }
2785
Christopher Fauletff2613e2016-11-09 11:36:17 +01002786 vars_prune(&global.vars, NULL, NULL);
Willy Tarreau2455ceb2018-11-26 15:57:34 +01002787 pool_destroy_all();
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002788 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002789} /* end deinit() */
2790
William Lallemand72160322018-11-06 17:37:16 +01002791
Willy Tarreau918ff602011-07-25 16:33:49 +02002792/* Runs the polling loop */
Willy Tarreau3ebd55e2020-03-03 14:59:56 +01002793void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02002794{
Willy Tarreau2ae84e42019-05-28 16:44:05 +02002795 int next, wake;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002796
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002797 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002798 while (1) {
Willy Tarreauc49ba522019-12-11 08:12:23 +01002799 wake_expired_tasks();
2800
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002801 /* Process a few tasks */
2802 process_runnable_tasks();
2803
William Lallemand1aab50b2018-06-07 09:46:01 +02002804 /* check if we caught some signals and process them in the
2805 first thread */
2806 if (tid == 0)
2807 signal_process_queue();
Willy Tarreau29857942009-05-10 09:01:21 +02002808
Willy Tarreau7067b3a2019-06-02 11:11:29 +02002809 /* also stop if we failed to cleanly stop all tasks */
2810 if (killed > 1)
2811 break;
2812
Willy Tarreau10146c92015-04-13 20:44:19 +02002813 /* expire immediately if events are pending */
Willy Tarreau2ae84e42019-05-28 16:44:05 +02002814 wake = 1;
Olivier Houchard305d5ab2019-07-24 18:07:06 +02002815 if (thread_has_tasks())
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002816 activity[tid].wake_tasks++;
William Lallemand1aab50b2018-06-07 09:46:01 +02002817 else if (signal_queue_len && tid == 0)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002818 activity[tid].wake_signal++;
Olivier Houchard79321b92018-07-26 17:55:11 +02002819 else {
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002820 _HA_ATOMIC_OR(&sleeping_thread_mask, tid_bit);
2821 __ha_barrier_atomic_store();
Willy Tarreau95abd5b2020-03-23 09:33:32 +01002822 if (thread_has_tasks()) {
Olivier Houchard79321b92018-07-26 17:55:11 +02002823 activity[tid].wake_tasks++;
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002824 _HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Olivier Houchard79321b92018-07-26 17:55:11 +02002825 } else
Willy Tarreau2ae84e42019-05-28 16:44:05 +02002826 wake = 0;
Olivier Houchard79321b92018-07-26 17:55:11 +02002827 }
Willy Tarreau10146c92015-04-13 20:44:19 +02002828
Willy Tarreau4f46a352020-03-23 09:27:28 +01002829 if (!wake) {
2830 if (stopping)
2831 _HA_ATOMIC_OR(&stopping_thread_mask, tid_bit);
2832
2833 /* stop when there's nothing left to do */
2834 if ((jobs - unstoppable_jobs) == 0 &&
2835 (stopping_thread_mask & all_threads_mask) == all_threads_mask)
2836 break;
2837 }
2838
Willy Tarreauc49ba522019-12-11 08:12:23 +01002839 /* If we have to sleep, measure how long */
2840 next = wake ? TICK_ETERNITY : next_timer_expiry();
2841
Willy Tarreau58b458d2008-06-29 22:40:23 +02002842 /* The poller will ensure it returns around <next> */
Willy Tarreau2ae84e42019-05-28 16:44:05 +02002843 cur_poller.poll(&cur_poller, next, wake);
Emeric Brun64cc49c2017-10-03 14:46:45 +02002844
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002845 activity[tid].loops++;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002846 }
2847}
2848
Christopher Faulet1d17c102017-08-29 15:38:48 +02002849static void *run_thread_poll_loop(void *data)
2850{
Willy Tarreau082b6282019-05-22 14:42:12 +02002851 struct per_thread_alloc_fct *ptaf;
Christopher Faulet1d17c102017-08-29 15:38:48 +02002852 struct per_thread_init_fct *ptif;
2853 struct per_thread_deinit_fct *ptdf;
Willy Tarreau082b6282019-05-22 14:42:12 +02002854 struct per_thread_free_fct *ptff;
Willy Tarreau34a150c2019-06-11 09:16:41 +02002855 static int init_left = 0;
2856 __decl_hathreads(static pthread_mutex_t init_mutex = PTHREAD_MUTEX_INITIALIZER);
2857 __decl_hathreads(static pthread_cond_t init_cond = PTHREAD_COND_INITIALIZER);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002858
Willy Tarreaub4f7cc32019-05-03 09:27:30 +02002859 ha_set_tid((unsigned long)data);
Willy Tarreaud022e9c2019-09-24 08:25:15 +02002860 sched = &task_per_thread[tid];
Willy Tarreau91e6df02019-05-03 17:21:18 +02002861
Willy Tarreauf6178242019-05-21 19:46:58 +02002862#if (_POSIX_TIMERS > 0) && defined(_POSIX_THREAD_CPUTIME)
Willy Tarreau91e6df02019-05-03 17:21:18 +02002863#ifdef USE_THREAD
Willy Tarreau8323a372019-05-20 18:57:53 +02002864 pthread_getcpuclockid(pthread_self(), &ti->clock_id);
Willy Tarreau624dcbf2019-05-20 20:23:06 +02002865#else
Willy Tarreau8323a372019-05-20 18:57:53 +02002866 ti->clock_id = CLOCK_THREAD_CPUTIME_ID;
Willy Tarreau91e6df02019-05-03 17:21:18 +02002867#endif
Willy Tarreau663fda42019-05-21 15:14:08 +02002868#endif
Willy Tarreau6ec902a2019-06-07 14:41:11 +02002869 /* Now, initialize one thread init at a time. This is better since
2870 * some init code is a bit tricky and may release global resources
2871 * after reallocating them locally. This will also ensure there is
2872 * no race on file descriptors allocation.
2873 */
Willy Tarreau34a150c2019-06-11 09:16:41 +02002874#ifdef USE_THREAD
2875 pthread_mutex_lock(&init_mutex);
2876#endif
2877 /* The first thread must set the number of threads left */
2878 if (!init_left)
2879 init_left = global.nbthread;
2880 init_left--;
Willy Tarreau91e6df02019-05-03 17:21:18 +02002881
Christopher Faulet1d17c102017-08-29 15:38:48 +02002882 tv_update_date(-1,-1);
2883
Willy Tarreau082b6282019-05-22 14:42:12 +02002884 /* per-thread alloc calls performed here are not allowed to snoop on
2885 * other threads, so they are free to initialize at their own rhythm
2886 * as long as they act as if they were alone. None of them may rely
2887 * on resources initialized by the other ones.
2888 */
2889 list_for_each_entry(ptaf, &per_thread_alloc_list, list) {
2890 if (!ptaf->fct()) {
2891 ha_alert("failed to allocate resources for thread %u.\n", tid);
2892 exit(1);
2893 }
2894 }
2895
Willy Tarreau3078e9f2019-05-20 10:50:43 +02002896 /* per-thread init calls performed here are not allowed to snoop on
2897 * other threads, so they are free to initialize at their own rhythm
2898 * as long as they act as if they were alone.
2899 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02002900 list_for_each_entry(ptif, &per_thread_init_list, list) {
2901 if (!ptif->fct()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002902 ha_alert("failed to initialize thread %u.\n", tid);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002903 exit(1);
2904 }
2905 }
2906
Willy Tarreau71092822019-06-10 09:51:04 +02002907 /* enabling protocols will result in fd_insert() calls to be performed,
2908 * we want all threads to have already allocated their local fd tables
Willy Tarreau34a150c2019-06-11 09:16:41 +02002909 * before doing so, thus only the last thread does it.
Willy Tarreau71092822019-06-10 09:51:04 +02002910 */
Willy Tarreau34a150c2019-06-11 09:16:41 +02002911 if (init_left == 0)
Willy Tarreaue4d7c9d2019-06-10 10:14:52 +02002912 protocol_enable_all();
Willy Tarreau6ec902a2019-06-07 14:41:11 +02002913
Willy Tarreau34a150c2019-06-11 09:16:41 +02002914#ifdef USE_THREAD
2915 pthread_cond_broadcast(&init_cond);
2916 pthread_mutex_unlock(&init_mutex);
2917
2918 /* now wait for other threads to finish starting */
2919 pthread_mutex_lock(&init_mutex);
2920 while (init_left)
2921 pthread_cond_wait(&init_cond, &init_mutex);
2922 pthread_mutex_unlock(&init_mutex);
2923#endif
Willy Tarreau3078e9f2019-05-20 10:50:43 +02002924
Willy Tarreaua45a8b52019-12-06 16:31:45 +01002925#if defined(PR_SET_NO_NEW_PRIVS) && defined(USE_PRCTL)
2926 /* Let's refrain from using setuid executables. This way the impact of
2927 * an eventual vulnerability in a library remains limited. It may
2928 * impact external checks but who cares about them anyway ? In the
2929 * worst case it's possible to disable the option. Obviously we do this
2930 * in workers only. We can't hard-fail on this one as it really is
2931 * implementation dependent though we're interested in feedback, hence
2932 * the warning.
2933 */
2934 if (!(global.tune.options & GTUNE_INSECURE_SETUID) && !master) {
2935 static int warn_fail;
2936 if (prctl(PR_SET_NO_NEW_PRIVS, 1, 0, 0, 0) == -1 && !_HA_ATOMIC_XADD(&warn_fail, 1)) {
2937 ha_warning("Failed to disable setuid, please report to developers with detailed "
2938 "information about your operating system. You can silence this warning "
2939 "by adding 'insecure-setuid-wanted' in the 'global' section.\n");
2940 }
2941 }
2942#endif
2943
Willy Tarreaud96f1122019-12-03 07:07:36 +01002944#if defined(RLIMIT_NPROC)
2945 /* all threads have started, it's now time to prevent any new thread
2946 * or process from starting. Obviously we do this in workers only. We
2947 * can't hard-fail on this one as it really is implementation dependent
2948 * though we're interested in feedback, hence the warning.
2949 */
2950 if (!(global.tune.options & GTUNE_INSECURE_FORK) && !master) {
2951 struct rlimit limit = { .rlim_cur = 0, .rlim_max = 0 };
2952 static int warn_fail;
2953
2954 if (setrlimit(RLIMIT_NPROC, &limit) == -1 && !_HA_ATOMIC_XADD(&warn_fail, 1)) {
2955 ha_warning("Failed to disable forks, please report to developers with detailed "
2956 "information about your operating system. You can silence this warning "
2957 "by adding 'insecure-fork-wanted' in the 'global' section.\n");
2958 }
2959 }
2960#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02002961 run_poll_loop();
2962
2963 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
2964 ptdf->fct();
2965
Willy Tarreau082b6282019-05-22 14:42:12 +02002966 list_for_each_entry(ptff, &per_thread_free_list, list)
2967 ptff->fct();
2968
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002969#ifdef USE_THREAD
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002970 _HA_ATOMIC_AND(&all_threads_mask, ~tid_bit);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002971 if (tid > 0)
2972 pthread_exit(NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002973#endif
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002974 return NULL;
2975}
Christopher Faulet1d17c102017-08-29 15:38:48 +02002976
William Dauchyf9af9d72019-11-17 15:47:16 +01002977/* set uid/gid depending on global settings */
2978static void set_identity(const char *program_name)
2979{
2980 if (global.gid) {
2981 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
2982 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2983 " without 'uid'/'user' is generally useless.\n", program_name);
2984
2985 if (setgid(global.gid) == -1) {
2986 ha_alert("[%s.main()] Cannot set gid %d.\n", program_name, global.gid);
2987 protocol_unbind_all();
2988 exit(1);
2989 }
2990 }
2991
2992 if (global.uid && setuid(global.uid) == -1) {
2993 ha_alert("[%s.main()] Cannot set uid %d.\n", program_name, global.uid);
2994 protocol_unbind_all();
2995 exit(1);
2996 }
2997}
2998
Willy Tarreaubaaee002006-06-26 02:48:02 +02002999int main(int argc, char **argv)
3000{
3001 int err, retry;
3002 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02003003 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02003004 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003005
Olivier Houchard5fa300d2018-02-03 15:15:21 +01003006 setvbuf(stdout, NULL, _IONBF, 0);
Willy Tarreau5794fb02018-11-25 18:43:29 +01003007
Willy Tarreauff9c9142019-02-07 10:39:36 +01003008 /* this can only safely be done here, though it's optimized away by
3009 * the compiler.
3010 */
3011 if (MAX_PROCS < 1 || MAX_PROCS > LONGBITS) {
3012 ha_alert("MAX_PROCS value must be between 1 and %d inclusive; "
3013 "HAProxy was built with value %d, please fix it and rebuild.\n",
3014 LONGBITS, MAX_PROCS);
3015 exit(1);
3016 }
3017
Willy Tarreaubf696402019-03-01 10:09:28 +01003018 /* take a copy of initial limits before we possibly change them */
3019 getrlimit(RLIMIT_NOFILE, &limit);
3020 rlim_fd_cur_at_boot = limit.rlim_cur;
3021 rlim_fd_max_at_boot = limit.rlim_max;
3022
Willy Tarreau5794fb02018-11-25 18:43:29 +01003023 /* process all initcalls in order of potential dependency */
3024 RUN_INITCALLS(STG_PREPARE);
3025 RUN_INITCALLS(STG_LOCK);
3026 RUN_INITCALLS(STG_ALLOC);
3027 RUN_INITCALLS(STG_POOL);
3028 RUN_INITCALLS(STG_REGISTER);
3029 RUN_INITCALLS(STG_INIT);
3030
Emeric Bruncf20bf12010-10-22 16:06:11 +02003031 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02003032 signal_register_fct(SIGQUIT, dump, SIGQUIT);
3033 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
3034 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
William Lallemand73b85e72017-06-01 17:38:51 +02003035 signal_register_fct(SIGUSR2, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003036
Willy Tarreaue437c442010-03-17 18:02:46 +01003037 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
3038 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
3039 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02003040 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02003041 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003042
Willy Tarreaudc23a922011-02-16 11:10:36 +01003043 /* ulimits */
3044 if (!global.rlimit_nofile)
3045 global.rlimit_nofile = global.maxsock;
3046
3047 if (global.rlimit_nofile) {
Willy Tarreaue5cfdac2019-03-01 10:32:05 +01003048 limit.rlim_cur = global.rlimit_nofile;
3049 limit.rlim_max = MAX(rlim_fd_max_at_boot, limit.rlim_cur);
3050
Willy Tarreaudc23a922011-02-16 11:10:36 +01003051 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02003052 getrlimit(RLIMIT_NOFILE, &limit);
William Dauchy0fec3ab2019-10-27 20:08:11 +01003053 if (global.tune.options & GTUNE_STRICT_LIMITS) {
3054 ha_alert("[%s.main()] Cannot raise FD limit to %d, limit is %d.\n",
3055 argv[0], global.rlimit_nofile, (int)limit.rlim_cur);
3056 if (!(global.mode & MODE_MWORKER))
3057 exit(1);
3058 }
3059 else {
3060 /* try to set it to the max possible at least */
3061 limit.rlim_cur = limit.rlim_max;
3062 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
3063 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02003064
William Dauchy0fec3ab2019-10-27 20:08:11 +01003065 ha_warning("[%s.main()] Cannot raise FD limit to %d, limit is %d. "
3066 "This will fail in >= v2.3\n",
3067 argv[0], global.rlimit_nofile, (int)limit.rlim_cur);
3068 global.rlimit_nofile = limit.rlim_cur;
3069 }
Willy Tarreaudc23a922011-02-16 11:10:36 +01003070 }
3071 }
3072
3073 if (global.rlimit_memmax) {
3074 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01003075 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01003076#ifdef RLIMIT_AS
3077 if (setrlimit(RLIMIT_AS, &limit) == -1) {
William Dauchy0fec3ab2019-10-27 20:08:11 +01003078 if (global.tune.options & GTUNE_STRICT_LIMITS) {
3079 ha_alert("[%s.main()] Cannot fix MEM limit to %d megs.\n",
3080 argv[0], global.rlimit_memmax);
3081 if (!(global.mode & MODE_MWORKER))
3082 exit(1);
3083 }
3084 else
3085 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs."
3086 "This will fail in >= v2.3\n",
3087 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01003088 }
3089#else
3090 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
William Dauchy0fec3ab2019-10-27 20:08:11 +01003091 if (global.tune.options & GTUNE_STRICT_LIMITS) {
3092 ha_alert("[%s.main()] Cannot fix MEM limit to %d megs.\n",
3093 argv[0], global.rlimit_memmax);
3094 if (!(global.mode & MODE_MWORKER))
3095 exit(1);
3096 }
3097 else
3098 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.",
3099 "This will fail in >= v2.3\n",
3100 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01003101 }
3102#endif
3103 }
3104
Olivier Houchardf73629d2017-04-05 22:33:04 +02003105 if (old_unixsocket) {
William Lallemand85b0bd92017-06-01 17:38:53 +02003106 if (strcmp("/dev/null", old_unixsocket) != 0) {
3107 if (get_old_sockets(old_unixsocket) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003108 ha_alert("Failed to get the sockets from the old process!\n");
William Lallemand85b0bd92017-06-01 17:38:53 +02003109 if (!(global.mode & MODE_MWORKER))
3110 exit(1);
3111 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02003112 }
3113 }
William Lallemand85b0bd92017-06-01 17:38:53 +02003114 get_cur_unixsocket();
3115
Willy Tarreaubaaee002006-06-26 02:48:02 +02003116 /* We will loop at most 100 times with 10 ms delay each time.
3117 * That's at most 1 second. We only send a signal to old pids
3118 * if we cannot grab at least one port.
3119 */
3120 retry = MAX_START_RETRIES;
3121 err = ERR_NONE;
3122 while (retry >= 0) {
3123 struct timeval w;
3124 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01003125 /* exit the loop on no error or fatal error */
3126 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02003127 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02003128 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02003129 break;
3130
3131 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
3132 * listening sockets. So on those platforms, it would be wiser to
3133 * simply send SIGUSR1, which will not be undoable.
3134 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02003135 if (tell_old_pids(SIGTTOU) == 0) {
3136 /* no need to wait if we can't contact old pids */
3137 retry = 0;
3138 continue;
3139 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02003140 /* give some time to old processes to stop listening */
3141 w.tv_sec = 0;
3142 w.tv_usec = 10*1000;
3143 select(0, NULL, NULL, NULL, &w);
3144 retry--;
3145 }
3146
3147 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01003148 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02003149 if (retry != MAX_START_RETRIES && nb_oldpids) {
3150 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003151 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02003152 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02003153 exit(1);
3154 }
3155
William Lallemand944e6192018-11-21 15:48:31 +01003156 if (!(global.mode & MODE_MWORKER_WAIT) && listeners == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003157 ha_alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003158 /* Note: we don't have to send anything to the old pids because we
3159 * never stopped them. */
3160 exit(1);
3161 }
3162
Emeric Bruncf20bf12010-10-22 16:06:11 +02003163 err = protocol_bind_all(errmsg, sizeof(errmsg));
3164 if ((err & ~ERR_WARN) != ERR_NONE) {
3165 if ((err & ERR_ALERT) || (err & ERR_WARN))
Christopher Faulet767a84b2017-11-24 16:50:31 +01003166 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Emeric Bruncf20bf12010-10-22 16:06:11 +02003167
Christopher Faulet767a84b2017-11-24 16:50:31 +01003168 ha_alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02003169 protocol_unbind_all(); /* cleanup everything we can */
3170 if (nb_oldpids)
3171 tell_old_pids(SIGTTIN);
3172 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02003173 } else if (err & ERR_WARN) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003174 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02003175 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02003176 /* Ok, all listener should now be bound, close any leftover sockets
3177 * the previous process gave us, we don't need them anymore
3178 */
3179 while (xfer_sock_list != NULL) {
3180 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
3181 close(xfer_sock_list->fd);
3182 free(xfer_sock_list->iface);
3183 free(xfer_sock_list->namespace);
3184 free(xfer_sock_list);
3185 xfer_sock_list = tmpxfer;
3186 }
Willy Tarreaudd815982007-10-16 12:25:14 +02003187
Willy Tarreaubaaee002006-06-26 02:48:02 +02003188 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02003189 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
3190 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003191
Willy Tarreaubaaee002006-06-26 02:48:02 +02003192 /* MODE_QUIET can inhibit alerts and warnings below this line */
3193
PiBa-NL149a81a2017-12-25 21:03:31 +01003194 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL) {
3195 /* either stdin/out/err are already closed or should stay as they are. */
3196 if ((global.mode & MODE_DAEMON)) {
3197 /* daemon mode re-executing, stdin/stdout/stderr are already closed so keep quiet */
3198 global.mode &= ~MODE_VERBOSE;
3199 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
3200 }
3201 } else {
3202 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
3203 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01003204 stdio_quiet(-1);
PiBa-NL149a81a2017-12-25 21:03:31 +01003205 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02003206 }
3207
3208 /* open log & pid files before the chroot */
William Lallemand80293002017-11-06 11:00:03 +01003209 if ((global.mode & MODE_DAEMON || global.mode & MODE_MWORKER) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02003210 unlink(global.pidfile);
3211 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
3212 if (pidfd < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003213 ha_alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003214 if (nb_oldpids)
3215 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02003216 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02003217 exit(1);
3218 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02003219 }
3220
Willy Tarreaub38651a2007-03-24 17:24:39 +01003221 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003222 ha_alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
3223 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02003224 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01003225 exit(1);
3226 }
3227
Willy Tarreau4e30ed72009-02-04 18:02:48 +01003228 /* If the user is not root, we'll still let him try the configuration
3229 * but we inform him that unexpected behaviour may occur.
3230 */
3231 if ((global.last_checks & LSTCHK_NETADM) && getuid())
Christopher Faulet767a84b2017-11-24 16:50:31 +01003232 ha_warning("[%s.main()] Some options which require full privileges"
3233 " might not work well.\n"
3234 "", argv[0]);
Willy Tarreau4e30ed72009-02-04 18:02:48 +01003235
William Lallemand095ba4c2017-06-01 17:38:50 +02003236 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
3237
3238 /* chroot if needed */
3239 if (global.chroot != NULL) {
3240 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003241 ha_alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02003242 if (nb_oldpids)
3243 tell_old_pids(SIGTTIN);
3244 protocol_unbind_all();
3245 exit(1);
3246 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02003247 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02003248 }
3249
William Lallemand944e6192018-11-21 15:48:31 +01003250 if (nb_oldpids && !(global.mode & MODE_MWORKER_WAIT))
Willy Tarreaubb545b42010-08-25 12:58:59 +02003251 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003252
William Lallemand27edc4b2019-05-07 17:49:33 +02003253 /* send a SIGTERM to workers who have a too high reloads number */
3254 if ((global.mode & MODE_MWORKER) && !(global.mode & MODE_MWORKER_WAIT))
3255 mworker_kill_max_reloads(SIGTERM);
3256
William Lallemand8a361b52017-06-20 11:20:33 +02003257 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
3258 nb_oldpids = 0;
3259 free(oldpids);
3260 oldpids = NULL;
3261 }
3262
3263
Willy Tarreaubaaee002006-06-26 02:48:02 +02003264 /* Note that any error at this stage will be fatal because we will not
3265 * be able to restart the old pids.
3266 */
3267
William Dauchyf9af9d72019-11-17 15:47:16 +01003268 if ((global.mode & (MODE_MWORKER | MODE_DAEMON)) == 0)
3269 set_identity(argv[0]);
Willy Tarreau636848a2019-04-15 19:38:50 +02003270
Willy Tarreaubaaee002006-06-26 02:48:02 +02003271 /* check ulimits */
3272 limit.rlim_cur = limit.rlim_max = 0;
3273 getrlimit(RLIMIT_NOFILE, &limit);
3274 if (limit.rlim_cur < global.maxsock) {
William Dauchy0fec3ab2019-10-27 20:08:11 +01003275 if (global.tune.options & GTUNE_STRICT_LIMITS) {
3276 ha_alert("[%s.main()] FD limit (%d) too low for maxconn=%d/maxsock=%d. "
3277 "Please raise 'ulimit-n' to %d or more to avoid any trouble.\n",
3278 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock,
3279 global.maxsock);
3280 if (!(global.mode & MODE_MWORKER))
3281 exit(1);
3282 }
3283 else
3284 ha_alert("[%s.main()] FD limit (%d) too low for maxconn=%d/maxsock=%d. "
3285 "Please raise 'ulimit-n' to %d or more to avoid any trouble."
3286 "This will fail in >= v2.3\n",
3287 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock,
3288 global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003289 }
3290
William Lallemand944e6192018-11-21 15:48:31 +01003291 if (global.mode & (MODE_DAEMON | MODE_MWORKER | MODE_MWORKER_WAIT)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003292 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003293 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003294 int ret = 0;
3295 int proc;
William Lallemande1340412017-12-28 16:09:36 +01003296 int devnullfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003297
William Lallemand095ba4c2017-06-01 17:38:50 +02003298 /*
3299 * if daemon + mworker: must fork here to let a master
3300 * process live in background before forking children
3301 */
William Lallemand73b85e72017-06-01 17:38:51 +02003302
3303 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)
3304 && (global.mode & MODE_MWORKER)
3305 && (global.mode & MODE_DAEMON)) {
William Lallemand095ba4c2017-06-01 17:38:50 +02003306 ret = fork();
3307 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003308 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02003309 protocol_unbind_all();
3310 exit(1); /* there has been an error */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003311 } else if (ret > 0) { /* parent leave to daemonize */
William Lallemand095ba4c2017-06-01 17:38:50 +02003312 exit(0);
William Lallemandbfd8eb52018-07-04 15:31:23 +02003313 } else /* change the process group ID in the child (master process) */
3314 setsid();
William Lallemand095ba4c2017-06-01 17:38:50 +02003315 }
William Lallemande20b6a62017-06-01 17:38:55 +02003316
William Lallemande20b6a62017-06-01 17:38:55 +02003317
William Lallemanddeed7802017-11-06 11:00:04 +01003318 /* if in master-worker mode, write the PID of the father */
3319 if (global.mode & MODE_MWORKER) {
3320 char pidstr[100];
Willy Tarreau76a80c72019-06-22 07:41:38 +02003321 snprintf(pidstr, sizeof(pidstr), "%d\n", (int)getpid());
Willy Tarreau46ec48b2018-01-23 19:20:19 +01003322 if (pidfd >= 0)
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01003323 DISGUISE(write(pidfd, pidstr, strlen(pidstr)));
William Lallemanddeed7802017-11-06 11:00:04 +01003324 }
3325
Willy Tarreaubaaee002006-06-26 02:48:02 +02003326 /* the father launches the required number of processes */
William Lallemand944e6192018-11-21 15:48:31 +01003327 if (!(global.mode & MODE_MWORKER_WAIT)) {
William Lallemand9a1ee7a2019-04-01 11:30:02 +02003328 if (global.mode & MODE_MWORKER)
3329 mworker_ext_launch_all();
William Lallemand944e6192018-11-21 15:48:31 +01003330 for (proc = 0; proc < global.nbproc; proc++) {
3331 ret = fork();
3332 if (ret < 0) {
3333 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
3334 protocol_unbind_all();
3335 exit(1); /* there has been an error */
3336 }
Willy Tarreau52bf8392020-03-08 00:42:37 +01003337 else if (ret == 0) { /* child breaks here */
3338 ha_random_jump96(relative_pid);
William Lallemand944e6192018-11-21 15:48:31 +01003339 break;
Willy Tarreau52bf8392020-03-08 00:42:37 +01003340 }
William Lallemand944e6192018-11-21 15:48:31 +01003341 if (pidfd >= 0 && !(global.mode & MODE_MWORKER)) {
3342 char pidstr[100];
3343 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau2e8ab6b2020-03-14 11:03:20 +01003344 DISGUISE(write(pidfd, pidstr, strlen(pidstr)));
William Lallemand944e6192018-11-21 15:48:31 +01003345 }
3346 if (global.mode & MODE_MWORKER) {
3347 struct mworker_proc *child;
William Lallemandce83b4a2018-10-26 14:47:30 +02003348
William Lallemand220567e2018-11-21 18:04:53 +01003349 ha_notice("New worker #%d (%d) forked\n", relative_pid, ret);
William Lallemand944e6192018-11-21 15:48:31 +01003350 /* find the right mworker_proc */
3351 list_for_each_entry(child, &proc_list, list) {
3352 if (child->relative_pid == relative_pid &&
William Lallemand8f7069a2019-04-12 16:09:23 +02003353 child->reloads == 0 && child->options & PROC_O_TYPE_WORKER) {
William Lallemand944e6192018-11-21 15:48:31 +01003354 child->timestamp = now.tv_sec;
3355 child->pid = ret;
William Lallemand1dc69632019-06-12 19:11:33 +02003356 child->version = strdup(haproxy_version);
William Lallemand944e6192018-11-21 15:48:31 +01003357 break;
3358 }
William Lallemandce83b4a2018-10-26 14:47:30 +02003359 }
3360 }
William Lallemandbc193052018-09-11 10:06:26 +02003361
William Lallemand944e6192018-11-21 15:48:31 +01003362 relative_pid++; /* each child will get a different one */
3363 pid_bit <<= 1;
3364 }
3365 } else {
3366 /* wait mode */
3367 global.nbproc = 1;
3368 proc = 1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003369 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003370
3371#ifdef USE_CPU_AFFINITY
3372 if (proc < global.nbproc && /* child */
Willy Tarreauff9c9142019-02-07 10:39:36 +01003373 proc < MAX_PROCS && /* only the first 32/64 processes may be pinned */
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003374 global.cpu_map.proc[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003375#ifdef __FreeBSD__
Olivier Houchard97148f62017-08-16 17:29:11 +02003376 {
3377 cpuset_t cpuset;
3378 int i;
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003379 unsigned long cpu_map = global.cpu_map.proc[proc];
Olivier Houchard97148f62017-08-16 17:29:11 +02003380
3381 CPU_ZERO(&cpuset);
3382 while ((i = ffsl(cpu_map)) > 0) {
3383 CPU_SET(i - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003384 cpu_map &= ~(1UL << (i - 1));
Olivier Houchard97148f62017-08-16 17:29:11 +02003385 }
3386 ret = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset), &cpuset);
3387 }
David Carlier5e4c8e22019-09-13 05:12:58 +01003388#elif defined(__linux__)
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003389 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map.proc[proc]);
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003390#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003391#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02003392 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02003393 if (pidfd >= 0) {
3394 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
3395 close(pidfd);
3396 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02003397
3398 /* We won't ever use this anymore */
Willy Tarreaud137dd32010-08-25 12:49:05 +02003399 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003400
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003401 if (proc == global.nbproc) {
William Lallemand944e6192018-11-21 15:48:31 +01003402 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003403
3404 if ((!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
3405 (global.mode & MODE_DAEMON)) {
3406 /* detach from the tty, this is required to properly daemonize. */
William Lallemande1340412017-12-28 16:09:36 +01003407 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL))
3408 stdio_quiet(-1);
3409
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003410 global.mode &= ~MODE_VERBOSE;
3411 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003412 }
3413
William Lallemandb3f2be32018-09-11 10:06:18 +02003414 mworker_loop();
William Lallemand1499b9b2017-06-07 15:04:47 +02003415 /* should never get there */
3416 exit(EXIT_FAILURE);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003417 }
William Lallemandcf4e4962017-06-08 19:05:48 +02003418#if defined(USE_OPENSSL) && !defined(OPENSSL_NO_DH)
Grant Zhang872f9c22017-01-21 01:10:18 +00003419 ssl_free_dh();
3420#endif
William Lallemand1499b9b2017-06-07 15:04:47 +02003421 exit(0); /* parent must leave */
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003422 }
3423
William Lallemandcb11fd22017-06-01 17:38:52 +02003424 /* child must never use the atexit function */
3425 atexit_flag = 0;
3426
William Lallemandbc193052018-09-11 10:06:26 +02003427 /* close useless master sockets */
3428 if (global.mode & MODE_MWORKER) {
3429 struct mworker_proc *child, *it;
3430 master = 0;
3431
William Lallemand309dc9a2018-10-26 14:47:45 +02003432 mworker_cli_proxy_stop();
3433
William Lallemandbc193052018-09-11 10:06:26 +02003434 /* free proc struct of other processes */
3435 list_for_each_entry_safe(child, it, &proc_list, list) {
William Lallemandce83b4a2018-10-26 14:47:30 +02003436 /* close the FD of the master side for all
3437 * workers, we don't need to close the worker
3438 * side of other workers since it's done with
3439 * the bind_proc */
Tim Duesterhus742e0f92018-11-25 20:03:39 +01003440 if (child->ipc_fd[0] >= 0)
3441 close(child->ipc_fd[0]);
William Lallemandce83b4a2018-10-26 14:47:30 +02003442 if (child->relative_pid == relative_pid &&
3443 child->reloads == 0) {
3444 /* keep this struct if this is our pid */
3445 proc_self = child;
William Lallemandbc193052018-09-11 10:06:26 +02003446 continue;
William Lallemandce83b4a2018-10-26 14:47:30 +02003447 }
William Lallemandbc193052018-09-11 10:06:26 +02003448 LIST_DEL(&child->list);
Tim Duesterhus9b7a9762019-05-16 20:23:22 +02003449 mworker_free_child(child);
3450 child = NULL;
William Lallemandbc193052018-09-11 10:06:26 +02003451 }
3452 }
Willy Tarreau1605c7a2018-01-23 19:01:49 +01003453
William Lallemande1340412017-12-28 16:09:36 +01003454 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
3455 devnullfd = open("/dev/null", O_RDWR, 0);
3456 if (devnullfd < 0) {
3457 ha_alert("Cannot open /dev/null\n");
3458 exit(EXIT_FAILURE);
3459 }
3460 }
3461
William Lallemand095ba4c2017-06-01 17:38:50 +02003462 /* Must chroot and setgid/setuid in the children */
3463 /* chroot if needed */
3464 if (global.chroot != NULL) {
3465 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003466 ha_alert("[%s.main()] Cannot chroot1(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02003467 if (nb_oldpids)
3468 tell_old_pids(SIGTTIN);
3469 protocol_unbind_all();
3470 exit(1);
3471 }
3472 }
3473
3474 free(global.chroot);
3475 global.chroot = NULL;
William Dauchyf9af9d72019-11-17 15:47:16 +01003476 set_identity(argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02003477
William Lallemand7f80eb22017-05-26 18:19:55 +02003478 /* pass through every cli socket, and check if it's bound to
3479 * the current process and if it exposes listeners sockets.
3480 * Caution: the GTUNE_SOCKET_TRANSFER is now set after the fork.
3481 * */
3482
3483 if (global.stats_fe) {
3484 struct bind_conf *bind_conf;
3485
3486 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
3487 if (bind_conf->level & ACCESS_FD_LISTENERS) {
3488 if (!bind_conf->bind_proc || bind_conf->bind_proc & (1UL << proc)) {
3489 global.tune.options |= GTUNE_SOCKET_TRANSFER;
3490 break;
3491 }
3492 }
3493 }
3494 }
3495
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003496 /* we might have to unbind some proxies from some processes */
Olivier Houchardfbc74e82017-11-24 16:54:05 +01003497 px = proxies_list;
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003498 while (px != NULL) {
3499 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02003500 if (!(px->bind_proc & (1UL << proc))) {
3501 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
3502 zombify_proxy(px);
3503 else
3504 stop_proxy(px);
3505 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003506 }
3507 px = px->next;
3508 }
3509
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003510 /* we might have to unbind some peers sections from some processes */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02003511 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003512 if (!curpeers->peers_fe)
3513 continue;
3514
3515 if (curpeers->peers_fe->bind_proc & (1UL << proc))
3516 continue;
3517
3518 stop_proxy(curpeers->peers_fe);
3519 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02003520 signal_unregister_handler(curpeers->sighandler);
Olivier Houchard3f795f72019-04-17 22:51:06 +02003521 task_destroy(curpeers->sync_task);
Willy Tarreau47c8c022015-09-28 16:39:25 +02003522 curpeers->sync_task = NULL;
Olivier Houchard3f795f72019-04-17 22:51:06 +02003523 task_destroy(curpeers->peers_fe->task);
Willy Tarreau47c8c022015-09-28 16:39:25 +02003524 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003525 curpeers->peers_fe = NULL;
3526 }
3527
William Lallemand2e8fad92018-11-13 16:18:23 +01003528 /*
3529 * This is only done in daemon mode because we might want the
3530 * logs on stdout in mworker mode. If we're NOT in QUIET mode,
3531 * we should now close the 3 first FDs to ensure that we can
3532 * detach from the TTY. We MUST NOT do it in other cases since
3533 * it would have already be done, and 0-2 would have been
3534 * affected to listening sockets
Willy Tarreaubaaee002006-06-26 02:48:02 +02003535 */
William Lallemand2e8fad92018-11-13 16:18:23 +01003536 if ((global.mode & MODE_DAEMON) &&
3537 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02003538 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01003539 stdio_quiet(devnullfd);
Willy Tarreau106cb762008-11-16 07:40:34 +01003540 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003541 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
3542 }
3543 pid = getpid(); /* update child's pid */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003544 if (!(global.mode & MODE_MWORKER)) /* in mworker mode we don't want a new pgid for the children */
3545 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02003546 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02003547 }
3548
William Dauchye039f262019-11-17 15:47:15 +01003549 /* try our best to re-enable core dumps depending on system capabilities.
3550 * What is addressed here :
3551 * - remove file size limits
3552 * - remove core size limits
3553 * - mark the process dumpable again if it lost it due to user/group
3554 */
3555 if (global.tune.options & GTUNE_SET_DUMPABLE) {
3556 limit.rlim_cur = limit.rlim_max = RLIM_INFINITY;
3557
3558#if defined(RLIMIT_FSIZE)
3559 if (setrlimit(RLIMIT_FSIZE, &limit) == -1) {
3560 if (global.tune.options & GTUNE_STRICT_LIMITS) {
3561 ha_alert("[%s.main()] Failed to set the raise the maximum "
3562 "file size.\n", argv[0]);
3563 if (!(global.mode & MODE_MWORKER))
3564 exit(1);
3565 }
3566 else
3567 ha_warning("[%s.main()] Failed to set the raise the maximum "
3568 "file size. This will fail in >= v2.3\n", argv[0]);
3569 }
3570#endif
3571
3572#if defined(RLIMIT_CORE)
3573 if (setrlimit(RLIMIT_CORE, &limit) == -1) {
3574 if (global.tune.options & GTUNE_STRICT_LIMITS) {
3575 ha_alert("[%s.main()] Failed to set the raise the core "
3576 "dump size.\n", argv[0]);
3577 if (!(global.mode & MODE_MWORKER))
3578 exit(1);
3579 }
3580 else
3581 ha_warning("[%s.main()] Failed to set the raise the core "
3582 "dump size. This will fail in >= v2.3\n", argv[0]);
3583 }
3584#endif
3585
3586#if defined(USE_PRCTL)
3587 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1)
3588 ha_warning("[%s.main()] Failed to set the dumpable flag, "
3589 "no core will be dumped.\n", argv[0]);
3590#endif
3591 }
3592
Christopher Faulete3a5e352017-10-24 13:53:54 +02003593 global.mode &= ~MODE_STARTING;
Willy Tarreau4f60f162007-04-08 16:39:58 +02003594 /*
3595 * That's it : the central polling loop. Run until we stop.
3596 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02003597#ifdef USE_THREAD
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003598 {
William Lallemand1aab50b2018-06-07 09:46:01 +02003599 sigset_t blocked_sig, old_sig;
Willy Tarreauc40efc12019-05-03 09:22:44 +02003600 int i;
3601
William Lallemand1aab50b2018-06-07 09:46:01 +02003602 /* ensure the signals will be blocked in every thread */
3603 sigfillset(&blocked_sig);
3604 sigdelset(&blocked_sig, SIGPROF);
3605 sigdelset(&blocked_sig, SIGBUS);
3606 sigdelset(&blocked_sig, SIGFPE);
3607 sigdelset(&blocked_sig, SIGILL);
3608 sigdelset(&blocked_sig, SIGSEGV);
3609 pthread_sigmask(SIG_SETMASK, &blocked_sig, &old_sig);
3610
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003611 /* Create nbthread-1 thread. The first thread is the current process */
David Carliera92c5ce2019-09-13 05:03:12 +01003612 ha_thread_info[0].pthread = pthread_self();
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003613 for (i = 1; i < global.nbthread; i++)
David Carliera92c5ce2019-09-13 05:03:12 +01003614 pthread_create(&ha_thread_info[i].pthread, NULL, &run_thread_poll_loop, (void *)(long)i);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003615
Christopher Faulet62519022017-10-16 15:49:32 +02003616#ifdef USE_CPU_AFFINITY
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003617 /* Now the CPU affinity for all threads */
Willy Tarreau7764a572019-07-16 15:10:34 +02003618 if (global.cpu_map.proc_t1[relative_pid-1])
3619 global.cpu_map.thread[0] &= global.cpu_map.proc_t1[relative_pid-1];
3620
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003621 for (i = 0; i < global.nbthread; i++) {
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003622 if (global.cpu_map.proc[relative_pid-1])
Willy Tarreau81492c92019-05-03 09:41:23 +02003623 global.cpu_map.thread[i] &= global.cpu_map.proc[relative_pid-1];
Christopher Faulet62519022017-10-16 15:49:32 +02003624
Willy Tarreau421f02e2018-01-20 18:19:22 +01003625 if (i < MAX_THREADS && /* only the first 32/64 threads may be pinned */
Willy Tarreau81492c92019-05-03 09:41:23 +02003626 global.cpu_map.thread[i]) {/* only do this if the thread has a THREAD map */
David Carlier5e4c8e22019-09-13 05:12:58 +01003627#if defined(__APPLE__)
3628 int j;
3629 unsigned long cpu_map = global.cpu_map.thread[i];
3630
3631 while ((j = ffsl(cpu_map)) > 0) {
3632 thread_affinity_policy_data_t cpu_set = { j - 1 };
3633 thread_port_t mthread = pthread_mach_thread_np(ha_thread_info[i].pthread);
3634 thread_policy_set(mthread, THREAD_AFFINITY_POLICY, (thread_policy_t)&cpu_set, 1);
3635 cpu_map &= ~(1UL << (j - 1));
3636 }
3637#else
Olivier Houchard829aa242017-12-01 18:19:43 +01003638#if defined(__FreeBSD__) || defined(__NetBSD__)
3639 cpuset_t cpuset;
3640#else
3641 cpu_set_t cpuset;
3642#endif
3643 int j;
Willy Tarreau81492c92019-05-03 09:41:23 +02003644 unsigned long cpu_map = global.cpu_map.thread[i];
Olivier Houchard829aa242017-12-01 18:19:43 +01003645
3646 CPU_ZERO(&cpuset);
3647
3648 while ((j = ffsl(cpu_map)) > 0) {
3649 CPU_SET(j - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003650 cpu_map &= ~(1UL << (j - 1));
Olivier Houchard829aa242017-12-01 18:19:43 +01003651 }
David Carliera92c5ce2019-09-13 05:03:12 +01003652 pthread_setaffinity_np(ha_thread_info[i].pthread,
Olivier Houchard829aa242017-12-01 18:19:43 +01003653 sizeof(cpuset), &cpuset);
David Carlier5e4c8e22019-09-13 05:12:58 +01003654#endif
Olivier Houchard829aa242017-12-01 18:19:43 +01003655 }
Christopher Faulet1d17c102017-08-29 15:38:48 +02003656 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003657#endif /* !USE_CPU_AFFINITY */
3658
William Lallemand1aab50b2018-06-07 09:46:01 +02003659 /* when multithreading we need to let only the thread 0 handle the signals */
William Lallemandd3801c12018-09-11 10:06:23 +02003660 haproxy_unblock_signals();
William Lallemand1aab50b2018-06-07 09:46:01 +02003661
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003662 /* Finally, start the poll loop for the first thread */
Willy Tarreaub4f7cc32019-05-03 09:27:30 +02003663 run_thread_poll_loop(0);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003664
3665 /* Wait the end of other threads */
3666 for (i = 1; i < global.nbthread; i++)
David Carliera92c5ce2019-09-13 05:03:12 +01003667 pthread_join(ha_thread_info[i].pthread, NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02003668
Christopher Fauletb79a94c2017-05-30 15:34:30 +02003669#if defined(DEBUG_THREAD) || defined(DEBUG_FULL)
3670 show_lock_stats();
3671#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003672 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003673#else /* ! USE_THREAD */
William Lallemandd3801c12018-09-11 10:06:23 +02003674 haproxy_unblock_signals();
Willy Tarreaub4f7cc32019-05-03 09:27:30 +02003675 run_thread_poll_loop(0);
Christopher Faulet62519022017-10-16 15:49:32 +02003676#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003677
3678 /* Do some cleanup */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003679 deinit();
Christopher Faulet1d17c102017-08-29 15:38:48 +02003680
Willy Tarreaubaaee002006-06-26 02:48:02 +02003681 exit(0);
3682}
3683
3684
3685/*
3686 * Local variables:
3687 * c-indent-level: 8
3688 * c-basic-offset: 8
3689 * End:
3690 */