blob: 4c5c8391d215d4f8c92ebb5e60848bb791c0421e [file] [log] [blame]
Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau6c1b6672019-02-26 16:43:49 +01003 * Copyright 2000-2019 Willy Tarreau <willy@haproxy.org>.
Willy Tarreaubaaee002006-06-26 02:48:02 +02004 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 *
Lukas Tribus23953682017-04-28 13:24:30 +000010 * Please refer to RFC7230 - RFC7235 informations about HTTP protocol, and
11 * RFC6265 for informations about cookies usage. More generally, the IETF HTTP
Willy Tarreaubaaee002006-06-26 02:48:02 +020012 * Working Group's web site should be consulted for protocol related changes :
13 *
14 * http://ftp.ics.uci.edu/pub/ietf/http/
15 *
16 * Pending bugs (may be not fixed because never reproduced) :
17 * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes
18 * the proxy to terminate (no core) if the client breaks the connection during
19 * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to
20 * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be
21 * related to missing setsid() (fixed in 1.1.15)
22 * - a proxy with an invalid config will prevent the startup even if disabled.
23 *
24 * ChangeLog has moved to the CHANGELOG file.
25 *
Willy Tarreaubaaee002006-06-26 02:48:02 +020026 */
27
David Carlier7ece0962015-12-08 21:43:09 +000028#define _GNU_SOURCE
Willy Tarreaubaaee002006-06-26 02:48:02 +020029#include <stdio.h>
30#include <stdlib.h>
31#include <unistd.h>
32#include <string.h>
33#include <ctype.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020034#include <dirent.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020035#include <sys/stat.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020036#include <sys/time.h>
37#include <sys/types.h>
38#include <sys/socket.h>
39#include <netinet/tcp.h>
40#include <netinet/in.h>
41#include <arpa/inet.h>
Olivier Houchardf73629d2017-04-05 22:33:04 +020042#include <net/if.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020043#include <netdb.h>
44#include <fcntl.h>
45#include <errno.h>
46#include <signal.h>
47#include <stdarg.h>
48#include <sys/resource.h>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010049#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020050#include <time.h>
51#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010052#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010053#ifdef USE_CPU_AFFINITY
Willy Tarreaufc6c0322012-11-16 16:12:27 +010054#include <sched.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000055#if defined(__FreeBSD__) || defined(__DragonFly__)
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020056#include <sys/param.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000057#ifdef __FreeBSD__
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020058#include <sys/cpuset.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000059#endif
David Carlier6d5c8412017-11-29 11:02:32 +000060#include <pthread_np.h>
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020061#endif
Willy Tarreaufc6c0322012-11-16 16:12:27 +010062#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020063
Willy Tarreau636848a2019-04-15 19:38:50 +020064#if defined(USE_PRCTL)
65#include <sys/prctl.h>
66#endif
67
Willy Tarreaubaaee002006-06-26 02:48:02 +020068#ifdef DEBUG_FULL
69#include <assert.h>
70#endif
Tim Duesterhusd6942c82017-11-20 15:58:35 +010071#if defined(USE_SYSTEMD)
72#include <systemd/sd-daemon.h>
73#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020074
Willy Tarreau2dd0d472006-06-29 17:53:05 +020075#include <common/base64.h>
76#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020077#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020078#include <common/compat.h>
79#include <common/config.h>
80#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010081#include <common/errors.h>
Willy Tarreau5794fb02018-11-25 18:43:29 +010082#include <common/initcall.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020083#include <common/memory.h>
84#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010085#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020086#include <common/regex.h>
87#include <common/standard.h>
88#include <common/time.h>
89#include <common/uri_auth.h>
90#include <common/version.h>
Christopher Fauletbe0faa22017-08-29 15:37:10 +020091#include <common/hathreads.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020092
93#include <types/capture.h>
William Lallemandce83b4a2018-10-26 14:47:30 +020094#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020095#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020096#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090097#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020098#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020099
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200100#include <proto/acl.h>
Willy Tarreau609aad92018-11-22 08:31:09 +0100101#include <proto/activity.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +0200102#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +0200103#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200104#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200105#include <proto/channel.h>
William Lallemandce83b4a2018-10-26 14:47:30 +0200106#include <proto/cli.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200107#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200108#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200109#include <proto/filters.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +0200110#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100111#include <proto/hlua.h>
Willy Tarreau61c112a2018-10-02 16:43:32 +0200112#include <proto/http_rules.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200113#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200114#include <proto/log.h>
William Lallemand48dfbbd2019-04-01 11:29:53 +0200115#include <proto/mworker.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100116#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200117#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +0100118#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200119#include <proto/proxy.h>
120#include <proto/queue.h>
121#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200122#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200123#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200124#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200125#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200126#include <proto/dns.h>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100127#include <proto/vars.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200128#ifdef USE_OPENSSL
Grant Zhang872f9c22017-01-21 01:10:18 +0000129#include <proto/ssl_sock.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200130#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200131
Willy Tarreau7b5654f2019-03-29 21:30:17 +0100132/* array of init calls for older platforms */
133DECLARE_INIT_STAGES;
134
Willy Tarreau477ecd82010-01-03 21:12:30 +0100135/* list of config files */
136static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200137int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100138int relative_pid = 1; /* process id starting at 1 */
Willy Tarreau387bd4f2017-11-10 19:08:14 +0100139unsigned long pid_bit = 1; /* bit corresponding to the process id */
Willy Tarreaua38a7172019-02-02 17:11:28 +0100140unsigned long all_proc_mask = 1; /* mask of all processes */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200141
Olivier Houchard79321b92018-07-26 17:55:11 +0200142volatile unsigned long sleeping_thread_mask; /* Threads that are about to sleep in poll() */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200143/* global options */
144struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100145 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100146 .nbproc = 1,
Willy Tarreau149ab772019-01-26 14:27:06 +0100147 .nbthread = 0,
William Lallemand5f232402012-04-05 18:02:55 +0200148 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200149 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100150 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100151 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100152 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200153 .unix_bind = {
154 .ux = {
155 .uid = -1,
156 .gid = -1,
157 .mode = 0,
158 }
159 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200160 .tune = {
Willy Tarreau7ac908b2019-02-27 12:02:18 +0100161 .options = GTUNE_LISTENER_MQ,
Willy Tarreauc77d3642018-12-12 06:19:42 +0100162 .bufsize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Willy Tarreau27097842015-09-28 13:53:23 +0200163 .maxrewrite = -1,
Willy Tarreauc77d3642018-12-12 06:19:42 +0100164 .chksize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Willy Tarreaua24adf02014-11-27 01:11:56 +0100165 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200166 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Olivier Houchard88698d92019-04-16 19:07:22 +0200167 .pool_low_ratio = 20,
168 .pool_high_ratio = 25,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200169#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100170 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200171#endif
William Lallemandf3747832012-11-09 12:33:10 +0100172 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100173#ifdef DEFAULT_IDLE_TIMER
174 .idle_timer = DEFAULT_IDLE_TIMER,
175#else
176 .idle_timer = 1000, /* 1 second */
177#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200178 },
Emeric Brun76d88952012-10-05 15:47:31 +0200179#ifdef USE_OPENSSL
180#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200181 .maxsslconn = DEFAULT_MAXSSLCONN,
182#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200183#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200184 /* others NULL OK */
185};
186
187/*********************************************************************/
188
189int stopping; /* non zero means stopping in progress */
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100190int killed; /* non zero means a hard-stop is triggered */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200191int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
William Lallemanda7199262018-11-16 16:57:20 +0100192int unstoppable_jobs = 0; /* number of active jobs that can't be stopped during a soft stop */
Willy Tarreau199ad242018-11-05 16:31:22 +0100193int active_peers = 0; /* number of active peers (connection attempts and connected) */
Willy Tarreau2d372c22018-11-05 17:12:27 +0100194int connected_peers = 0; /* number of connected peers (verified ones) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200195
196/* Here we store informations about the pids of the processes we may pause
197 * or kill. We will send them a signal every 10 ms until we can bind to all
198 * our ports. With 200 retries, that's about 2 seconds.
199 */
200#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200201static int *oldpids = NULL;
202static int oldpids_sig; /* use USR1 or TERM */
203
Olivier Houchardf73629d2017-04-05 22:33:04 +0200204/* Path to the unix socket we use to retrieve listener sockets from the old process */
205static const char *old_unixsocket;
206
William Lallemand85b0bd92017-06-01 17:38:53 +0200207static char *cur_unixsocket = NULL;
208
William Lallemandcb11fd22017-06-01 17:38:52 +0200209int atexit_flag = 0;
210
Willy Tarreaubb545b42010-08-25 12:58:59 +0200211int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200212const int zero = 0;
213const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200214const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200215
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100216char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200217char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200218
Willy Tarreau89efaed2013-12-13 15:14:55 +0100219/* used from everywhere just to drain results we don't want to read and which
220 * recent versions of gcc increasingly and annoyingly complain about.
221 */
222int shut_your_big_mouth_gcc_int = 0;
223
William Lallemand73b85e72017-06-01 17:38:51 +0200224static char **next_argv = NULL;
225
William Lallemandbc193052018-09-11 10:06:26 +0200226struct list proc_list = LIST_HEAD_INIT(proc_list);
227
228int master = 0; /* 1 if in master, 0 if in child */
Willy Tarreaubf696402019-03-01 10:09:28 +0100229unsigned int rlim_fd_cur_at_boot = 0;
230unsigned int rlim_fd_max_at_boot = 0;
William Lallemandbc193052018-09-11 10:06:26 +0200231
William Lallemand16dd1b32018-11-19 18:46:18 +0100232struct mworker_proc *proc_self = NULL;
William Lallemandbc193052018-09-11 10:06:26 +0200233
Willy Tarreau08ceb102011-07-24 22:58:00 +0200234/* list of the temporarily limited listeners because of lack of resource */
235struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200236struct task *global_listener_queue_task;
Olivier Houchard9f6af332018-05-25 14:04:04 +0200237static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200238
William Lallemandb3f2be32018-09-11 10:06:18 +0200239static void *run_thread_poll_loop(void *data);
240
Willy Tarreauff055502014-04-28 22:27:06 +0200241/* bitfield of a few warnings to emit just once (WARN_*) */
242unsigned int warned = 0;
243
William Lallemande7361152018-10-26 14:47:36 +0200244/* master CLI configuration (-S flag) */
245struct list mworker_cli_conf = LIST_HEAD_INIT(mworker_cli_conf);
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100246
247/* These are strings to be reported in the output of "haproxy -vv". They may
248 * either be constants (in which case must_free must be zero) or dynamically
249 * allocated strings to pass to free() on exit, and in this case must_free
250 * must be non-zero.
251 */
252struct list build_opts_list = LIST_HEAD_INIT(build_opts_list);
253struct build_opts_str {
254 struct list list;
255 const char *str;
256 int must_free;
257};
258
Willy Tarreaue6945732016-12-21 19:57:00 +0100259/* These functions are called just after the point where the program exits
260 * after a config validity check, so they are generally suited for resource
261 * allocation and slow initializations that should be skipped during basic
262 * config checks. The functions must return 0 on success, or a combination
263 * of ERR_* flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause
264 * and immediate exit, so the function must have emitted any useful error.
265 */
266struct list post_check_list = LIST_HEAD_INIT(post_check_list);
267struct post_check_fct {
268 struct list list;
269 int (*fct)();
270};
271
Willy Tarreau05554e62016-12-21 20:46:26 +0100272/* These functions are called when freeing the global sections at the end
273 * of deinit, after everything is stopped. They don't return anything, and
274 * they work in best effort mode as their sole goal is to make valgrind
275 * mostly happy.
276 */
277struct list post_deinit_list = LIST_HEAD_INIT(post_deinit_list);
278struct post_deinit_fct {
279 struct list list;
280 void (*fct)();
281};
282
Christopher Faulet415f6112017-07-25 16:52:58 +0200283/* These functions are called for each thread just after the thread creation
284 * and before running the scheduler. They should be used to do per-thread
285 * initializations. They must return 0 if an error occurred. */
286struct list per_thread_init_list = LIST_HEAD_INIT(per_thread_init_list);
287struct per_thread_init_fct {
288 struct list list;
289 int (*fct)();
290};
291
292/* These functions are called for each thread just after the scheduler loop and
293 * before exiting the thread. They don't return anything and, as for post-deinit
294 * functions, they work in best effort mode as their sole goal is to make
295 * valgrind mostly happy. */
296struct list per_thread_deinit_list = LIST_HEAD_INIT(per_thread_deinit_list);
297struct per_thread_deinit_fct {
298 struct list list;
299 void (*fct)();
300};
301
Willy Tarreaubaaee002006-06-26 02:48:02 +0200302/*********************************************************************/
303/* general purpose functions ***************************************/
304/*********************************************************************/
305
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100306/* used to register some build option strings at boot. Set must_free to
307 * non-zero if the string must be freed upon exit.
308 */
309void hap_register_build_opts(const char *str, int must_free)
310{
311 struct build_opts_str *b;
312
313 b = calloc(1, sizeof(*b));
314 if (!b) {
315 fprintf(stderr, "out of memory\n");
316 exit(1);
317 }
318 b->str = str;
319 b->must_free = must_free;
320 LIST_ADDQ(&build_opts_list, &b->list);
321}
322
Willy Tarreaue6945732016-12-21 19:57:00 +0100323/* used to register some initialization functions to call after the checks. */
324void hap_register_post_check(int (*fct)())
325{
326 struct post_check_fct *b;
327
328 b = calloc(1, sizeof(*b));
329 if (!b) {
330 fprintf(stderr, "out of memory\n");
331 exit(1);
332 }
333 b->fct = fct;
334 LIST_ADDQ(&post_check_list, &b->list);
335}
336
Willy Tarreau05554e62016-12-21 20:46:26 +0100337/* used to register some de-initialization functions to call after everything
338 * has stopped.
339 */
340void hap_register_post_deinit(void (*fct)())
341{
342 struct post_deinit_fct *b;
343
344 b = calloc(1, sizeof(*b));
345 if (!b) {
346 fprintf(stderr, "out of memory\n");
347 exit(1);
348 }
349 b->fct = fct;
350 LIST_ADDQ(&post_deinit_list, &b->list);
351}
352
Christopher Faulet415f6112017-07-25 16:52:58 +0200353/* used to register some initialization functions to call for each thread. */
354void hap_register_per_thread_init(int (*fct)())
355{
356 struct per_thread_init_fct *b;
357
358 b = calloc(1, sizeof(*b));
359 if (!b) {
360 fprintf(stderr, "out of memory\n");
361 exit(1);
362 }
363 b->fct = fct;
364 LIST_ADDQ(&per_thread_init_list, &b->list);
365}
366
367/* used to register some de-initialization functions to call for each thread. */
368void hap_register_per_thread_deinit(void (*fct)())
369{
370 struct per_thread_deinit_fct *b;
371
372 b = calloc(1, sizeof(*b));
373 if (!b) {
374 fprintf(stderr, "out of memory\n");
375 exit(1);
376 }
377 b->fct = fct;
378 LIST_ADDQ(&per_thread_deinit_list, &b->list);
379}
380
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100381static void display_version()
Willy Tarreaubaaee002006-06-26 02:48:02 +0200382{
Willy Tarreau909b9d82019-01-04 18:20:32 +0100383 printf("HA-Proxy version %s %s - https://haproxy.org/\n", haproxy_version, haproxy_date);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200384}
385
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100386static void display_build_opts()
Willy Tarreau7b066db2007-12-02 11:28:59 +0100387{
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100388 struct build_opts_str *item;
389
Willy Tarreau7b066db2007-12-02 11:28:59 +0100390 printf("Build options :"
391#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100392 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100393#endif
394#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100395 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100396#endif
397#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100398 "\n CC = " BUILD_CC
399#endif
400#ifdef BUILD_CFLAGS
401 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100402#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100403#ifdef BUILD_OPTIONS
404 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100405#endif
Willy Tarreau7728ed32019-03-27 13:20:08 +0100406#ifdef BUILD_FEATURES
407 "\n\nFeature list : " BUILD_FEATURES
408#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200409 "\n\nDefault settings :"
Willy Tarreauca783d42019-03-13 10:03:07 +0100410 "\n bufsize = %d, maxrewrite = %d, maxpollevents = %d"
Willy Tarreau27a674e2009-08-17 07:23:33 +0200411 "\n\n",
Willy Tarreauca783d42019-03-13 10:03:07 +0100412 BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200413
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100414 list_for_each_entry(item, &build_opts_list, list) {
415 puts(item->str);
416 }
417
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100418 putchar('\n');
419
Willy Tarreaube5b6852009-10-03 18:57:08 +0200420 list_pollers(stdout);
421 putchar('\n');
Christopher Faulet98d9fe22018-04-10 14:37:32 +0200422 list_mux_proto(stdout);
423 putchar('\n');
Willy Tarreau679bba12019-03-19 08:08:10 +0100424 list_services(stdout);
425 putchar('\n');
Christopher Fauletb3f4e142016-03-07 12:46:38 +0100426 list_filters(stdout);
427 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100428}
429
Willy Tarreaubaaee002006-06-26 02:48:02 +0200430/*
431 * This function prints the command line usage and exits
432 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100433static void usage(char *name)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200434{
435 display_version();
436 fprintf(stderr,
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200437 "Usage : %s [-f <cfgfile|cfgdir>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200438 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200439 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100440 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200441 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200442 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200443 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200444 " -D goes daemon ; -C changes to <dir> before loading files.\n"
William Lallemand095ba4c2017-06-01 17:38:50 +0200445 " -W master-worker mode.\n"
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100446#if defined(USE_SYSTEMD)
447 " -Ws master-worker mode with systemd notify support.\n"
448#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200449 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200450 " -c check mode : only check config files and exit\n"
Willy Tarreauca783d42019-03-13 10:03:07 +0100451 " -n sets the maximum total # of connections (uses ulimit -n)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200452 " -m limits the usable amount of memory (in MB)\n"
453 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200454 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200455 " -p writes pids of all children to this file\n"
456#if defined(ENABLE_EPOLL)
457 " -de disables epoll() usage even when available\n"
458#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200459#if defined(ENABLE_KQUEUE)
460 " -dk disables kqueue() usage even when available\n"
461#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200462#if defined(ENABLE_POLL)
463 " -dp disables poll() usage even when available\n"
464#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200465#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100466 " -dS disables splice usage (broken on old kernels)\n"
467#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200468#if defined(USE_GETADDRINFO)
469 " -dG disables getaddrinfo() usage\n"
470#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000471#if defined(SO_REUSEPORT)
472 " -dR disables SO_REUSEPORT usage\n"
473#endif
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100474 " -dr ignores server address resolution failures\n"
Emeric Brun850efd52014-01-29 12:24:34 +0100475 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200476 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Olivier Houchardf73629d2017-04-05 22:33:04 +0200477 " -x <unix_socket> get listening sockets from a unix socket\n"
William Lallemande7361152018-10-26 14:47:36 +0200478 " -S <unix_socket>[,<bind options>...] new stats socket for the master\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200479 "\n",
Willy Tarreauca783d42019-03-13 10:03:07 +0100480 name, cfg_maxpconn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200481 exit(1);
482}
483
484
485
486/*********************************************************************/
487/* more specific functions ***************************************/
488/*********************************************************************/
489
William Lallemand73b85e72017-06-01 17:38:51 +0200490/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
491 * pids the signal was correctly delivered to.
492 */
William Lallemande25473c2019-04-01 11:29:56 +0200493int tell_old_pids(int sig)
William Lallemand73b85e72017-06-01 17:38:51 +0200494{
495 int p;
496 int ret = 0;
497 for (p = 0; p < nb_oldpids; p++)
498 if (kill(oldpids[p], sig) == 0)
499 ret++;
500 return ret;
501}
502
William Lallemand75ea0a02017-11-15 19:02:58 +0100503/*
William Lallemand73b85e72017-06-01 17:38:51 +0200504 * remove a pid forom the olpid array and decrease nb_oldpids
505 * return 1 pid was found otherwise return 0
506 */
507
508int delete_oldpid(int pid)
509{
510 int i;
511
512 for (i = 0; i < nb_oldpids; i++) {
513 if (oldpids[i] == pid) {
514 oldpids[i] = oldpids[nb_oldpids - 1];
515 oldpids[nb_oldpids - 1] = 0;
516 nb_oldpids--;
517 return 1;
518 }
519 }
520 return 0;
521}
522
William Lallemand85b0bd92017-06-01 17:38:53 +0200523
524static void get_cur_unixsocket()
525{
526 /* if -x was used, try to update the stat socket if not available anymore */
527 if (global.stats_fe) {
528 struct bind_conf *bind_conf;
529
530 /* pass through all stats socket */
531 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
532 struct listener *l;
533
534 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
535
536 if (l->addr.ss_family == AF_UNIX &&
537 (bind_conf->level & ACCESS_FD_LISTENERS)) {
538 const struct sockaddr_un *un;
539
540 un = (struct sockaddr_un *)&l->addr;
541 /* priority to old_unixsocket */
542 if (!cur_unixsocket) {
543 cur_unixsocket = strdup(un->sun_path);
544 } else {
545 if (old_unixsocket && !strcmp(un->sun_path, old_unixsocket)) {
546 free(cur_unixsocket);
547 cur_unixsocket = strdup(old_unixsocket);
548 return;
549 }
550 }
551 }
552 }
553 }
554 }
555 if (!cur_unixsocket && old_unixsocket)
556 cur_unixsocket = strdup(old_unixsocket);
557}
558
William Lallemand73b85e72017-06-01 17:38:51 +0200559/*
560 * When called, this function reexec haproxy with -sf followed by current
Joseph Herlant03420902018-11-15 10:41:50 -0800561 * children PIDs and possibly old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200562 */
William Lallemanda57b7e32018-12-14 21:11:31 +0100563void mworker_reload()
William Lallemand73b85e72017-06-01 17:38:51 +0200564{
565 int next_argc = 0;
William Lallemand73b85e72017-06-01 17:38:51 +0200566 char *msg = NULL;
Willy Tarreau8dca1952019-03-01 10:21:55 +0100567 struct rlimit limit;
William Lallemand7c756a82018-11-26 11:53:40 +0100568 struct per_thread_deinit_fct *ptdf;
William Lallemand73b85e72017-06-01 17:38:51 +0200569
570 mworker_block_signals();
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100571#if defined(USE_SYSTEMD)
572 if (global.tune.options & GTUNE_USE_SYSTEMD)
573 sd_notify(0, "RELOADING=1");
574#endif
William Lallemand73b85e72017-06-01 17:38:51 +0200575 setenv("HAPROXY_MWORKER_REEXEC", "1", 1);
576
William Lallemandbc193052018-09-11 10:06:26 +0200577 mworker_proc_list_to_env(); /* put the children description in the env */
578
William Lallemand7c756a82018-11-26 11:53:40 +0100579 /* during the reload we must ensure that every FDs that can't be
580 * reuse (ie those that are not referenced in the proc_list)
581 * are closed or they will leak. */
582
583 /* close the listeners FD */
584 mworker_cli_proxy_stop();
585 /* close the poller FD and the thread waker pipe FD */
586 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
587 ptdf->fct();
588 if (fdtab)
589 deinit_pollers();
590
Willy Tarreau8dca1952019-03-01 10:21:55 +0100591 /* restore the initial FD limits */
592 limit.rlim_cur = rlim_fd_cur_at_boot;
593 limit.rlim_max = rlim_fd_max_at_boot;
594 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
595 getrlimit(RLIMIT_NOFILE, &limit);
596 ha_warning("Failed to restore initial FD limits (cur=%u max=%u), using cur=%u max=%u\n",
597 rlim_fd_cur_at_boot, rlim_fd_max_at_boot,
598 (unsigned int)limit.rlim_cur, (unsigned int)limit.rlim_max);
599 }
600
William Lallemand73b85e72017-06-01 17:38:51 +0200601 /* compute length */
602 while (next_argv[next_argc])
603 next_argc++;
604
William Lallemand85b0bd92017-06-01 17:38:53 +0200605 /* 1 for haproxy -sf, 2 for -x /socket */
William Lallemand3f128872019-04-01 11:29:59 +0200606 next_argv = realloc(next_argv, (next_argc + 1 + 2 + mworker_child_nb() + nb_oldpids + 1) * sizeof(char *));
William Lallemand73b85e72017-06-01 17:38:51 +0200607 if (next_argv == NULL)
608 goto alloc_error;
609
William Lallemand73b85e72017-06-01 17:38:51 +0200610 /* add -sf <PID>* to argv */
William Lallemand3f128872019-04-01 11:29:59 +0200611 if (mworker_child_nb() > 0) {
612 struct mworker_proc *child;
613
William Lallemand73b85e72017-06-01 17:38:51 +0200614 next_argv[next_argc++] = "-sf";
William Lallemand3f128872019-04-01 11:29:59 +0200615
616 list_for_each_entry(child, &proc_list, list) {
William Lallemand8f7069a2019-04-12 16:09:23 +0200617 if (!(child->options & (PROC_O_TYPE_WORKER|PROC_O_TYPE_PROG)))
William Lallemand3f128872019-04-01 11:29:59 +0200618 continue;
619 next_argv[next_argc] = memprintf(&msg, "%d", child->pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200620 if (next_argv[next_argc] == NULL)
621 goto alloc_error;
622 msg = NULL;
William Lallemand3f128872019-04-01 11:29:59 +0200623 next_argc++;
William Lallemand73b85e72017-06-01 17:38:51 +0200624 }
625 }
William Lallemand3f128872019-04-01 11:29:59 +0200626
William Lallemand73b85e72017-06-01 17:38:51 +0200627 next_argv[next_argc] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200628
William Lallemand2bf6d622017-06-20 11:20:23 +0200629 /* add the -x option with the stat socket */
William Lallemand85b0bd92017-06-01 17:38:53 +0200630 if (cur_unixsocket) {
631
William Lallemand2bf6d622017-06-20 11:20:23 +0200632 next_argv[next_argc++] = "-x";
633 next_argv[next_argc++] = (char *)cur_unixsocket;
634 next_argv[next_argc++] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200635 }
636
Christopher Faulet767a84b2017-11-24 16:50:31 +0100637 ha_warning("Reexecuting Master process\n");
Tim Duesterhus0436ab72017-11-12 17:39:18 +0100638 execvp(next_argv[0], next_argv);
William Lallemand73b85e72017-06-01 17:38:51 +0200639
Christopher Faulet767a84b2017-11-24 16:50:31 +0100640 ha_warning("Failed to reexecute the master process [%d]: %s\n", pid, strerror(errno));
William Lallemand722d4ca2017-11-15 19:02:55 +0100641 return;
642
William Lallemand73b85e72017-06-01 17:38:51 +0200643alloc_error:
Joseph Herlant07a08342018-11-15 10:43:05 -0800644 ha_warning("Failed to reexecute the master process [%d]: Cannot allocate memory\n", pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200645 return;
646}
647
William Lallemandb3f2be32018-09-11 10:06:18 +0200648static void mworker_loop()
649{
650
651#if defined(USE_SYSTEMD)
652 if (global.tune.options & GTUNE_USE_SYSTEMD)
653 sd_notifyf(0, "READY=1\nMAINPID=%lu", (unsigned long)getpid());
654#endif
Willy Tarreaud83b6c12019-04-18 11:31:36 +0200655 /* Busy polling makes no sense in the master :-) */
656 global.tune.options &= ~GTUNE_BUSY_POLLING;
William Lallemandb3f2be32018-09-11 10:06:18 +0200657
William Lallemandbc193052018-09-11 10:06:26 +0200658 master = 1;
659
William Lallemand0564d412018-11-20 17:36:53 +0100660 signal_unregister(SIGUSR1);
661 signal_unregister(SIGHUP);
662 signal_unregister(SIGQUIT);
663
William Lallemandb3f2be32018-09-11 10:06:18 +0200664 signal_register_fct(SIGTERM, mworker_catch_sigterm, SIGTERM);
665 signal_register_fct(SIGUSR1, mworker_catch_sigterm, SIGUSR1);
666 signal_register_fct(SIGINT, mworker_catch_sigterm, SIGINT);
667 signal_register_fct(SIGHUP, mworker_catch_sighup, SIGHUP);
668 signal_register_fct(SIGUSR2, mworker_catch_sighup, SIGUSR2);
669 signal_register_fct(SIGCHLD, mworker_catch_sigchld, SIGCHLD);
670
671 mworker_unblock_signals();
672 mworker_cleanlisteners();
William Lallemand27f3fa52018-12-06 14:05:20 +0100673 mworker_cleantasks();
William Lallemandb3f2be32018-09-11 10:06:18 +0200674
William Lallemandbc193052018-09-11 10:06:26 +0200675 mworker_catch_sigchld(NULL); /* ensure we clean the children in case
676 some SIGCHLD were lost */
677
William Lallemandb3f2be32018-09-11 10:06:18 +0200678 global.nbthread = 1;
679 relative_pid = 1;
680 pid_bit = 1;
Willy Tarreaua38a7172019-02-02 17:11:28 +0100681 all_proc_mask = 1;
William Lallemandb3f2be32018-09-11 10:06:18 +0200682
William Lallemand2672eb92018-12-14 15:52:39 +0100683#ifdef USE_THREAD
684 tid_bit = 1;
685 all_threads_mask = 1;
686#endif
687
William Lallemandb3f2be32018-09-11 10:06:18 +0200688 jobs++; /* this is the "master" job, we want to take care of the
689 signals even if there is no listener so the poll loop don't
690 leave */
691
692 fork_poller();
693 run_thread_poll_loop((int []){0});
694}
William Lallemandcb11fd22017-06-01 17:38:52 +0200695
696/*
697 * Reexec the process in failure mode, instead of exiting
698 */
699void reexec_on_failure()
700{
701 if (!atexit_flag)
702 return;
703
704 setenv("HAPROXY_MWORKER_WAIT_ONLY", "1", 1);
705
Christopher Faulet767a84b2017-11-24 16:50:31 +0100706 ha_warning("Reexecuting Master process in waitpid mode\n");
William Lallemandcb11fd22017-06-01 17:38:52 +0200707 mworker_reload();
William Lallemandcb11fd22017-06-01 17:38:52 +0200708}
William Lallemand73b85e72017-06-01 17:38:51 +0200709
710
711/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200712 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
713 * a signal zero to all subscribers. This means that it's as easy as
714 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200715 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100716static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200717{
718 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200719 signal_unregister_handler(sh);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100720 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200721}
722
723/*
724 * upon SIGTTOU, we pause everything
725 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100726static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200727{
728 pause_proxies();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100729 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200730}
731
732/*
733 * upon SIGTTIN, let's have a soft stop.
734 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100735static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200736{
Willy Tarreaube58c382011-07-24 18:28:10 +0200737 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200738}
739
740/*
741 * this function dumps every server's state when the process receives SIGHUP.
742 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100743static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200744{
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100745 struct proxy *p = proxies_list;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200746
Christopher Faulet767a84b2017-11-24 16:50:31 +0100747 ha_warning("SIGHUP received, dumping servers states.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200748 while (p) {
749 struct server *s = p->srv;
750
751 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
752 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100753 chunk_printf(&trash,
754 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
755 p->id, s->id,
Emeric Brun52a91d32017-08-31 14:41:55 +0200756 (s->cur_state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100757 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200758 ha_warning("%s\n", trash.area);
759 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200760 s = s->next;
761 }
762
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200763 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
764 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100765 chunk_printf(&trash,
766 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
767 p->id,
768 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 +0200769 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100770 chunk_printf(&trash,
771 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
772 p->id,
773 (p->srv_bck) ? "is running on backup servers" : "has no server available",
774 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 +0200775 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100776 chunk_printf(&trash,
777 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
778 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
779 p->id, p->srv_act, p->srv_bck,
780 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 +0200781 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200782 ha_warning("%s\n", trash.area);
783 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200784
785 p = p->next;
786 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200787}
788
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100789static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200790{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200791 /* dump memory usage then free everything possible */
792 dump_pools();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100793 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200794}
795
William Lallemande1340412017-12-28 16:09:36 +0100796/*
797 * This function dup2 the stdio FDs (0,1,2) with <fd>, then closes <fd>
798 * If <fd> < 0, it opens /dev/null and use it to dup
799 *
800 * In the case of chrooting, you have to open /dev/null before the chroot, and
801 * pass the <fd> to this function
802 */
803static void stdio_quiet(int fd)
804{
805 if (fd < 0)
806 fd = open("/dev/null", O_RDWR, 0);
807
808 if (fd > -1) {
809 fclose(stdin);
810 fclose(stdout);
811 fclose(stderr);
812
813 dup2(fd, 0);
814 dup2(fd, 1);
815 dup2(fd, 2);
816 if (fd > 2)
817 close(fd);
818 return;
819 }
820
821 ha_alert("Cannot open /dev/null\n");
822 exit(EXIT_FAILURE);
823}
824
825
Joseph Herlant03420902018-11-15 10:41:50 -0800826/* This function checks if cfg_cfgfiles contains directories.
827 * If it finds one, it adds all the files (and only files) it contains
828 * in cfg_cfgfiles in place of the directory (and removes the directory).
829 * It adds the files in lexical order.
830 * It adds only files with .cfg extension.
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200831 * It doesn't add files with name starting with '.'
832 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100833static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200834{
835 struct wordlist *wl, *wlb;
836 char *err = NULL;
837
838 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
839 struct stat file_stat;
840 struct dirent **dir_entries = NULL;
841 int dir_entries_nb;
842 int dir_entries_it;
843
844 if (stat(wl->s, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100845 ha_alert("Cannot open configuration file/directory %s : %s\n",
846 wl->s,
847 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200848 exit(1);
849 }
850
851 if (!S_ISDIR(file_stat.st_mode))
852 continue;
853
854 /* from this point wl->s is a directory */
855
856 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
857 if (dir_entries_nb < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100858 ha_alert("Cannot open configuration directory %s : %s\n",
859 wl->s,
860 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200861 exit(1);
862 }
863
864 /* for each element in the directory wl->s */
865 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
866 struct dirent *dir_entry = dir_entries[dir_entries_it];
867 char *filename = NULL;
868 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
869
870 /* don't add filename that begin with .
Joseph Herlant03420902018-11-15 10:41:50 -0800871 * only add filename with .cfg extension
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200872 */
873 if (dir_entry->d_name[0] == '.' ||
874 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
875 goto next_dir_entry;
876
877 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100878 ha_alert("Cannot load configuration files %s : out of memory.\n",
879 filename);
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200880 exit(1);
881 }
882
883 if (stat(filename, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100884 ha_alert("Cannot open configuration file %s : %s\n",
885 wl->s,
886 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200887 exit(1);
888 }
889
890 /* don't add anything else than regular file in cfg_cfgfiles
891 * this way we avoid loops
892 */
893 if (!S_ISREG(file_stat.st_mode))
894 goto next_dir_entry;
895
896 if (!list_append_word(&wl->list, filename, &err)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100897 ha_alert("Cannot load configuration files %s : %s\n",
898 filename,
899 err);
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200900 exit(1);
901 }
902
903next_dir_entry:
904 free(filename);
905 free(dir_entry);
906 }
907
908 free(dir_entries);
909
910 /* remove the current directory (wl) from cfg_cfgfiles */
911 free(wl->s);
912 LIST_DEL(&wl->list);
913 free(wl);
914 }
915
916 free(err);
917}
918
Olivier Houchardf73629d2017-04-05 22:33:04 +0200919static int get_old_sockets(const char *unixsocket)
920{
921 char *cmsgbuf = NULL, *tmpbuf = NULL;
922 int *tmpfd = NULL;
923 struct sockaddr_un addr;
924 struct cmsghdr *cmsg;
925 struct msghdr msghdr;
926 struct iovec iov;
927 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +0200928 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +0200929 int sock = -1;
930 int ret = -1;
931 int ret2 = -1;
932 int fd_nb;
933 int got_fd = 0;
934 int i = 0;
935 size_t maxoff = 0, curoff = 0;
936
937 memset(&msghdr, 0, sizeof(msghdr));
938 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
939 if (!cmsgbuf) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100940 ha_warning("Failed to allocate memory to send sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +0200941 goto out;
942 }
943 sock = socket(PF_UNIX, SOCK_STREAM, 0);
944 if (sock < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100945 ha_warning("Failed to connect to the old process socket '%s'\n",
946 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +0200947 goto out;
948 }
949 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path));
950 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
951 addr.sun_family = PF_UNIX;
952 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
953 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100954 ha_warning("Failed to connect to the old process socket '%s'\n",
955 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +0200956 goto out;
957 }
Olivier Houchard54740872017-04-06 14:45:14 +0200958 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +0200959 iov.iov_base = &fd_nb;
960 iov.iov_len = sizeof(fd_nb);
961 msghdr.msg_iov = &iov;
962 msghdr.msg_iovlen = 1;
963 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
964 /* First, get the number of file descriptors to be received */
965 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100966 ha_warning("Failed to get the number of sockets to be transferred !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +0200967 goto out;
968 }
969 if (fd_nb == 0) {
970 ret = 0;
971 goto out;
972 }
Olivier Houchardf143b802017-11-04 15:13:01 +0100973 tmpbuf = malloc(fd_nb * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int)));
Olivier Houchardf73629d2017-04-05 22:33:04 +0200974 if (tmpbuf == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100975 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +0200976 goto out;
977 }
978 tmpfd = malloc(fd_nb * sizeof(int));
979 if (tmpfd == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100980 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +0200981 goto out;
982 }
983 msghdr.msg_control = cmsgbuf;
984 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
Olivier Houchardf143b802017-11-04 15:13:01 +0100985 iov.iov_len = MAX_SEND_FD * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int));
Olivier Houchardf73629d2017-04-05 22:33:04 +0200986 do {
987 int ret3;
988
989 iov.iov_base = tmpbuf + curoff;
990 ret = recvmsg(sock, &msghdr, 0);
991 if (ret == -1 && errno == EINTR)
992 continue;
993 if (ret <= 0)
994 break;
995 /* Send an ack to let the sender know we got the sockets
996 * and it can send some more
997 */
998 do {
999 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
1000 } while (ret3 == -1 && errno == EINTR);
1001 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
1002 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
1003 if (cmsg->cmsg_level == SOL_SOCKET &&
1004 cmsg->cmsg_type == SCM_RIGHTS) {
1005 size_t totlen = cmsg->cmsg_len -
1006 CMSG_LEN(0);
1007 if (totlen / sizeof(int) + got_fd > fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001008 ha_warning("Got to many sockets !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001009 goto out;
1010 }
1011 /*
1012 * Be paranoid and use memcpy() to avoid any
1013 * potential alignement issue.
1014 */
1015 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
1016 got_fd += totlen / sizeof(int);
1017 }
1018 }
1019 curoff += ret;
1020 } while (got_fd < fd_nb);
1021
1022 if (got_fd != fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001023 ha_warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
1024 fd_nb, got_fd);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001025 goto out;
1026 }
1027 maxoff = curoff;
1028 curoff = 0;
1029 for (i = 0; i < got_fd; i++) {
1030 int fd = tmpfd[i];
1031 socklen_t socklen;
1032 int len;
1033
1034 xfer_sock = calloc(1, sizeof(*xfer_sock));
1035 if (!xfer_sock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001036 ha_warning("Failed to allocate memory in get_old_sockets() !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001037 break;
1038 }
1039 xfer_sock->fd = -1;
1040
1041 socklen = sizeof(xfer_sock->addr);
1042 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001043 ha_warning("Failed to get socket address\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001044 free(xfer_sock);
Olivier Houchardbe7b1ce2017-07-17 17:25:33 +02001045 xfer_sock = NULL;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001046 continue;
1047 }
1048 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001049 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001050 goto out;
1051 }
1052 len = tmpbuf[curoff++];
1053 if (len > 0) {
1054 /* We have a namespace */
1055 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001056 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001057 goto out;
1058 }
1059 xfer_sock->namespace = malloc(len + 1);
1060 if (!xfer_sock->namespace) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001061 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001062 goto out;
1063 }
1064 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
1065 xfer_sock->namespace[len] = 0;
1066 curoff += len;
1067 }
1068 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001069 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001070 goto out;
1071 }
1072 len = tmpbuf[curoff++];
1073 if (len > 0) {
1074 /* We have an interface */
1075 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001076 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001077 goto out;
1078 }
1079 xfer_sock->iface = malloc(len + 1);
1080 if (!xfer_sock->iface) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001081 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001082 goto out;
1083 }
1084 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
Olivier Houchard33e083c2018-03-15 17:48:49 +01001085 xfer_sock->iface[len] = 0;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001086 curoff += len;
1087 }
1088 if (curoff + sizeof(int) > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001089 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001090 goto out;
1091 }
1092 memcpy(&xfer_sock->options, &tmpbuf[curoff],
1093 sizeof(xfer_sock->options));
1094 curoff += sizeof(xfer_sock->options);
1095
1096 xfer_sock->fd = fd;
1097 if (xfer_sock_list)
1098 xfer_sock_list->prev = xfer_sock;
1099 xfer_sock->next = xfer_sock_list;
1100 xfer_sock->prev = NULL;
1101 xfer_sock_list = xfer_sock;
1102 xfer_sock = NULL;
1103 }
1104
1105 ret2 = 0;
1106out:
1107 /* If we failed midway make sure to close the remaining
1108 * file descriptors
1109 */
1110 if (tmpfd != NULL && i < got_fd) {
1111 for (; i < got_fd; i++) {
1112 close(tmpfd[i]);
1113 }
1114 }
1115 free(tmpbuf);
1116 free(tmpfd);
1117 free(cmsgbuf);
1118 if (sock != -1)
1119 close(sock);
1120 if (xfer_sock) {
1121 free(xfer_sock->namespace);
1122 free(xfer_sock->iface);
1123 if (xfer_sock->fd != -1)
1124 close(xfer_sock->fd);
1125 free(xfer_sock);
1126 }
1127 return (ret2);
1128}
1129
Willy Tarreaubaaee002006-06-26 02:48:02 +02001130/*
William Lallemand73b85e72017-06-01 17:38:51 +02001131 * copy and cleanup the current argv
1132 * Remove the -sf /-st parameters
1133 * Return an allocated copy of argv
1134 */
1135
1136static char **copy_argv(int argc, char **argv)
1137{
1138 char **newargv;
William Lallemand2bf6d622017-06-20 11:20:23 +02001139 int i = 0, j = 0;
William Lallemand73b85e72017-06-01 17:38:51 +02001140
1141 newargv = calloc(argc + 2, sizeof(char *));
1142 if (newargv == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001143 ha_warning("Cannot allocate memory\n");
William Lallemand73b85e72017-06-01 17:38:51 +02001144 return NULL;
1145 }
1146
William Lallemand2bf6d622017-06-20 11:20:23 +02001147 while (i < argc) {
1148 /* -sf or -st or -x */
William Lallemand29f690c2018-01-09 23:12:27 +01001149 if (i > 0 && argv[i][0] == '-' &&
1150 ((argv[i][1] == 's' && (argv[i][2] == 'f' || argv[i][2] == 't')) || argv[i][1] == 'x' )) {
William Lallemand2bf6d622017-06-20 11:20:23 +02001151 /* list of pids to finish ('f') or terminate ('t') or unix socket (-x) */
William Lallemand73b85e72017-06-01 17:38:51 +02001152 i++;
1153 while (i < argc && argv[i][0] != '-') {
1154 i++;
1155 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001156 continue;
William Lallemand73b85e72017-06-01 17:38:51 +02001157 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001158
1159 newargv[j++] = argv[i++];
William Lallemand73b85e72017-06-01 17:38:51 +02001160 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001161
William Lallemand73b85e72017-06-01 17:38:51 +02001162 return newargv;
1163}
1164
Willy Tarreau5a023f02019-03-01 14:19:31 +01001165/* considers splicing proxies' maxconn, computes the ideal global.maxpipes
1166 * setting, and returns it. It may return -1 meaning "unlimited" if some
1167 * unlimited proxies have been found and the global.maxconn value is not yet
1168 * set. It may also return a value greater than maxconn if it's not yet set.
1169 * Note that a value of zero means there is no need for pipes. -1 is never
1170 * returned if global.maxconn is valid.
1171 */
1172static int compute_ideal_maxpipes()
1173{
1174 struct proxy *cur;
1175 int nbfe = 0, nbbe = 0;
1176 int unlimited = 0;
1177 int pipes;
1178 int max;
1179
1180 for (cur = proxies_list; cur; cur = cur->next) {
1181 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
1182 if (cur->cap & PR_CAP_FE) {
1183 max = cur->maxconn;
1184 nbfe += max;
1185 if (!max) {
1186 unlimited = 1;
1187 break;
1188 }
1189 }
1190 if (cur->cap & PR_CAP_BE) {
1191 max = cur->fullconn ? cur->fullconn : global.maxconn;
1192 nbbe += max;
1193 if (!max) {
1194 unlimited = 1;
1195 break;
1196 }
1197 }
1198 }
1199 }
1200
1201 pipes = MAX(nbfe, nbbe);
1202 if (global.maxconn) {
1203 if (pipes > global.maxconn || unlimited)
1204 pipes = global.maxconn;
1205 } else if (unlimited) {
1206 pipes = -1;
1207 }
1208
1209 return pipes >= 4 ? pipes / 4 : pipes;
1210}
1211
Willy Tarreauac350932019-03-01 15:43:14 +01001212/* considers global.maxsocks, global.maxpipes, async engines, SSL frontends and
1213 * rlimits and computes an ideal maxconn. It's meant to be called only when
1214 * maxsock contains the sum of listening FDs, before it is updated based on
Willy Tarreaudf23c0c2019-03-13 10:10:49 +01001215 * maxconn and pipes. If there are not enough FDs left, DEFAULT_MAXCONN (by
1216 * default 100) is returned as it is expected that it will even run on tight
1217 * environments, and will maintain compatibility with previous packages that
1218 * used to rely on this value as the default one. The system will emit a
1219 * warning indicating how many FDs are missing anyway if needed.
Willy Tarreauac350932019-03-01 15:43:14 +01001220 */
1221static int compute_ideal_maxconn()
1222{
1223 int ssl_sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1224 int engine_fds = global.ssl_used_async_engines * ssl_sides;
1225 int pipes = compute_ideal_maxpipes();
1226 int remain = rlim_fd_cur_at_boot;
1227 int maxconn;
1228
1229 /* we have to take into account these elements :
1230 * - number of engine_fds, which inflates the number of FD needed per
1231 * connection by this number.
1232 * - number of pipes per connection on average : for the unlimited
1233 * case, this is 0.5 pipe FDs per connection, otherwise it's a
1234 * fixed value of 2*pipes.
1235 * - two FDs per connection
1236 */
1237
1238 /* subtract listeners and checks */
1239 remain -= global.maxsock;
1240
Willy Tarreau3f200852019-03-14 19:13:17 +01001241 /* one epoll_fd/kqueue_fd per thread */
1242 remain -= global.nbthread;
1243
1244 /* one wake-up pipe (2 fd) per thread */
1245 remain -= 2 * global.nbthread;
1246
Willy Tarreauac350932019-03-01 15:43:14 +01001247 /* Fixed pipes values : we only subtract them if they're not larger
1248 * than the remaining FDs because pipes are optional.
1249 */
1250 if (pipes >= 0 && pipes * 2 < remain)
1251 remain -= pipes * 2;
1252
1253 if (pipes < 0) {
1254 /* maxsock = maxconn * 2 + maxconn/4 * 2 + maxconn * engine_fds.
1255 * = maxconn * (2 + 0.5 + engine_fds)
1256 * = maxconn * (4 + 1 + 2*engine_fds) / 2
1257 */
1258 maxconn = 2 * remain / (5 + 2 * engine_fds);
1259 } else {
1260 /* maxsock = maxconn * 2 + maxconn * engine_fds.
1261 * = maxconn * (2 + engine_fds)
1262 */
1263 maxconn = remain / (2 + engine_fds);
1264 }
1265
Willy Tarreaudf23c0c2019-03-13 10:10:49 +01001266 return MAX(maxconn, DEFAULT_MAXCONN);
Willy Tarreauac350932019-03-01 15:43:14 +01001267}
1268
William Lallemand73b85e72017-06-01 17:38:51 +02001269/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001270 * This function initializes all the necessary variables. It only returns
1271 * if everything is OK. If something fails, it exits.
1272 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001273static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001274{
Willy Tarreaubaaee002006-06-26 02:48:02 +02001275 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001276 char *tmp;
1277 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +02001278 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +02001279 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +01001280 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +00001281 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +02001282 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +02001283 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +01001284 struct post_check_fct *pcf;
Willy Tarreauac350932019-03-01 15:43:14 +01001285 int ideal_maxconn;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001286
Christopher Faulete3a5e352017-10-24 13:53:54 +02001287 global.mode = MODE_STARTING;
William Lallemand73b85e72017-06-01 17:38:51 +02001288 next_argv = copy_argv(argc, argv);
1289
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001290 if (!init_trash_buffers(1)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001291 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet748919a2017-07-26 14:59:46 +02001292 exit(1);
1293 }
David du Colombier7af46052012-05-16 14:16:48 +02001294
Emeric Brun2b920a12010-09-23 18:30:22 +02001295 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
1296 * the string in case of truncation, and at least FreeBSD appears not to do
1297 * it.
1298 */
1299 memset(hostname, 0, sizeof(hostname));
1300 gethostname(hostname, sizeof(hostname) - 1);
1301 memset(localpeer, 0, sizeof(localpeer));
1302 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
William Lallemanddaf4cd22018-04-17 16:46:13 +02001303 setenv("HAPROXY_LOCALPEER", localpeer, 1);
Emeric Brun2b920a12010-09-23 18:30:22 +02001304
Willy Tarreaubaaee002006-06-26 02:48:02 +02001305 /*
1306 * Initialize the previously static variables.
1307 */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001308
Willy Tarreau173d9952018-01-26 21:48:23 +01001309 totalconn = actconn = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001310 killed = 0;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001311
Willy Tarreaubaaee002006-06-26 02:48:02 +02001312
1313#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +01001314 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001315#endif
1316
Benoit GARNIERb413c2a2016-03-27 11:08:03 +02001317 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001318 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001319 start_date = now;
1320
Willy Tarreau84310e22014-02-14 11:59:04 +01001321 srandom(now_ms - getpid());
1322
Willy Tarreau8ed669b2013-01-11 15:49:37 +01001323 if (init_acl() != 0)
1324 exit(1);
Willy Tarreaub6b3df32018-11-26 16:31:20 +01001325
Willy Tarreau8280d642009-09-23 23:37:52 +02001326 /* warning, we init buffers later */
Willy Tarreau04f1e2d2018-09-10 18:04:24 +02001327 if (!init_http(&err_msg)) {
1328 ha_alert("%s. Aborting.\n", err_msg);
1329 free(err_msg);
1330 abort();
1331 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001332
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001333 /* Initialise lua. */
1334 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001335
Christopher Fauletff2613e2016-11-09 11:36:17 +01001336 /* Initialize process vars */
1337 vars_init(&global.vars, SCOPE_PROC);
1338
Willy Tarreau43b78992009-01-25 15:42:27 +01001339 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001340#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001341 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001342#endif
1343#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001344 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001345#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001346#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +01001347 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001348#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001349#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001350 global.tune.options |= GTUNE_USE_SPLICE;
1351#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001352#if defined(USE_GETADDRINFO)
1353 global.tune.options |= GTUNE_USE_GAI;
1354#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001355#if defined(SO_REUSEPORT)
1356 global.tune.options |= GTUNE_USE_REUSEPORT;
1357#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001358
1359 pid = getpid();
1360 progname = *argv;
1361 while ((tmp = strchr(progname, '/')) != NULL)
1362 progname = tmp + 1;
1363
Kevinm48936af2010-12-22 16:08:21 +00001364 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +02001365 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +00001366
Willy Tarreaubaaee002006-06-26 02:48:02 +02001367 argc--; argv++;
1368 while (argc > 0) {
1369 char *flag;
1370
1371 if (**argv == '-') {
1372 flag = *argv+1;
1373
1374 /* 1 arg */
1375 if (*flag == 'v') {
1376 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +01001377 if (flag[1] == 'v') /* -vv */
1378 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001379 exit(0);
1380 }
1381#if defined(ENABLE_EPOLL)
1382 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +01001383 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001384#endif
1385#if defined(ENABLE_POLL)
1386 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +01001387 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001388#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +02001389#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001390 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +01001391 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001392#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001393#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001394 else if (*flag == 'd' && flag[1] == 'S')
1395 global.tune.options &= ~GTUNE_USE_SPLICE;
1396#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001397#if defined(USE_GETADDRINFO)
1398 else if (*flag == 'd' && flag[1] == 'G')
1399 global.tune.options &= ~GTUNE_USE_GAI;
1400#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001401#if defined(SO_REUSEPORT)
1402 else if (*flag == 'd' && flag[1] == 'R')
1403 global.tune.options &= ~GTUNE_USE_REUSEPORT;
1404#endif
Emeric Brun850efd52014-01-29 12:24:34 +01001405 else if (*flag == 'd' && flag[1] == 'V')
1406 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001407 else if (*flag == 'V')
1408 arg_mode |= MODE_VERBOSE;
1409 else if (*flag == 'd' && flag[1] == 'b')
1410 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +02001411 else if (*flag == 'd' && flag[1] == 'M')
1412 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +01001413 else if (*flag == 'd' && flag[1] == 'r')
1414 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001415 else if (*flag == 'd')
1416 arg_mode |= MODE_DEBUG;
1417 else if (*flag == 'c')
1418 arg_mode |= MODE_CHECK;
William Lallemand095ba4c2017-06-01 17:38:50 +02001419 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +02001420 arg_mode |= MODE_DAEMON;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001421 else if (*flag == 'W' && flag[1] == 's') {
Lukas Tribusf46bf952017-11-21 12:39:34 +01001422 arg_mode |= MODE_MWORKER | MODE_FOREGROUND;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001423#if defined(USE_SYSTEMD)
1424 global.tune.options |= GTUNE_USE_SYSTEMD;
1425#else
Christopher Faulet767a84b2017-11-24 16:50:31 +01001426 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 +01001427 usage(progname);
1428#endif
1429 }
William Lallemand095ba4c2017-06-01 17:38:50 +02001430 else if (*flag == 'W')
1431 arg_mode |= MODE_MWORKER;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001432 else if (*flag == 'q')
1433 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001434 else if (*flag == 'x') {
William Lallemand45eff442017-06-19 15:57:55 +02001435 if (argc <= 1 || argv[1][0] == '-') {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001436 ha_alert("Unix socket path expected with the -x flag\n\n");
William Lallemand45eff442017-06-19 15:57:55 +02001437 usage(progname);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001438 }
William Lallemand4fc09692017-06-19 16:37:19 +02001439 if (old_unixsocket)
Christopher Faulet767a84b2017-11-24 16:50:31 +01001440 ha_warning("-x option already set, overwriting the value\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001441 old_unixsocket = argv[1];
William Lallemand4fc09692017-06-19 16:37:19 +02001442
Olivier Houchardf73629d2017-04-05 22:33:04 +02001443 argv++;
1444 argc--;
1445 }
William Lallemande7361152018-10-26 14:47:36 +02001446 else if (*flag == 'S') {
1447 struct wordlist *c;
1448
1449 if (argc <= 1 || argv[1][0] == '-') {
1450 ha_alert("Socket and optional bind parameters expected with the -S flag\n");
1451 usage(progname);
1452 }
1453 if ((c = malloc(sizeof(*c))) == NULL || (c->s = strdup(argv[1])) == NULL) {
1454 ha_alert("Cannot allocate memory\n");
1455 exit(EXIT_FAILURE);
1456 }
1457 LIST_ADD(&mworker_cli_conf, &c->list);
1458
1459 argv++;
1460 argc--;
1461 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001462 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
1463 /* list of pids to finish ('f') or terminate ('t') */
1464
1465 if (flag[1] == 'f')
1466 oldpids_sig = SIGUSR1; /* finish then exit */
1467 else
1468 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001469 while (argc > 1 && argv[1][0] != '-') {
Chris Lane236062f2018-02-05 23:15:44 +00001470 char * endptr = NULL;
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001471 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
1472 if (!oldpids) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001473 ha_alert("Cannot allocate old pid : out of memory.\n");
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001474 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001475 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001476 argc--; argv++;
Chris Lane236062f2018-02-05 23:15:44 +00001477 errno = 0;
1478 oldpids[nb_oldpids] = strtol(*argv, &endptr, 10);
1479 if (errno) {
1480 ha_alert("-%2s option: failed to parse {%s}: %s\n",
1481 flag,
1482 *argv, strerror(errno));
1483 exit(1);
1484 } else if (endptr && strlen(endptr)) {
1485 while (isspace(*endptr)) endptr++;
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001486 if (*endptr != 0) {
Chris Lane236062f2018-02-05 23:15:44 +00001487 ha_alert("-%2s option: some bytes unconsumed in PID list {%s}\n",
1488 flag, endptr);
1489 exit(1);
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001490 }
Chris Lane236062f2018-02-05 23:15:44 +00001491 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001492 if (oldpids[nb_oldpids] <= 0)
1493 usage(progname);
1494 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001495 }
1496 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001497 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
1498 /* now that's a cfgfile list */
1499 argv++; argc--;
1500 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001501 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001502 ha_alert("Cannot load configuration file/directory %s : %s\n",
1503 *argv,
1504 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +02001505 exit(1);
1506 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001507 argv++; argc--;
1508 }
1509 break;
1510 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001511 else { /* >=2 args */
1512 argv++; argc--;
1513 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001514 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001515
1516 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +02001517 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001518 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +01001519 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001520 case 'N' : cfg_maxpconn = atol(*argv); break;
William Lallemanddaf4cd22018-04-17 16:46:13 +02001521 case 'L' :
1522 strncpy(localpeer, *argv, sizeof(localpeer) - 1);
1523 setenv("HAPROXY_LOCALPEER", localpeer, 1);
1524 break;
Willy Tarreau5d01a632009-06-22 16:02:30 +02001525 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +02001526 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001527 ha_alert("Cannot load configuration file/directory %s : %s\n",
1528 *argv,
1529 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +02001530 exit(1);
1531 }
Willy Tarreau5d01a632009-06-22 16:02:30 +02001532 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001533 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001534 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001535 }
1536 }
1537 }
1538 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001539 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001540 argv++; argc--;
1541 }
1542
Christopher Faulete3a5e352017-10-24 13:53:54 +02001543 global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
1544 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001545
William Lallemand944e6192018-11-21 15:48:31 +01001546 if (getenv("HAPROXY_MWORKER_WAIT_ONLY")) {
William Lallemandcb11fd22017-06-01 17:38:52 +02001547 unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
William Lallemand944e6192018-11-21 15:48:31 +01001548 global.mode |= MODE_MWORKER_WAIT;
1549 global.mode &= ~MODE_MWORKER;
William Lallemandcb11fd22017-06-01 17:38:52 +02001550 }
1551
1552 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") != NULL)) {
1553 atexit_flag = 1;
1554 atexit(reexec_on_failure);
1555 }
1556
Willy Tarreau576132e2011-09-10 19:26:56 +02001557 if (change_dir && chdir(change_dir) < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001558 ha_alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
Willy Tarreau576132e2011-09-10 19:26:56 +02001559 exit(1);
1560 }
1561
Willy Tarreaubaaee002006-06-26 02:48:02 +02001562 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001563
1564 init_default_instance();
1565
William Lallemand944e6192018-11-21 15:48:31 +01001566 /* in wait mode, we don't try to read the configuration files */
1567 if (!(global.mode & MODE_MWORKER_WAIT)) {
Willy Tarreauc4382422009-12-06 13:10:44 +01001568
William Lallemand944e6192018-11-21 15:48:31 +01001569 /* handle cfgfiles that are actually directories */
1570 cfgfiles_expand_directories();
1571
1572 if (LIST_ISEMPTY(&cfg_cfgfiles))
1573 usage(progname);
1574
1575
1576 list_for_each_entry(wl, &cfg_cfgfiles, list) {
1577 int ret;
1578
1579 ret = readcfgfile(wl->s);
1580 if (ret == -1) {
1581 ha_alert("Could not open configuration file %s : %s\n",
1582 wl->s, strerror(errno));
1583 exit(1);
1584 }
1585 if (ret & (ERR_ABORT|ERR_FATAL))
1586 ha_alert("Error(s) found in configuration file : %s\n", wl->s);
1587 err_code |= ret;
1588 if (err_code & ERR_ABORT)
1589 exit(1);
Willy Tarreauc4382422009-12-06 13:10:44 +01001590 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001591
William Lallemand944e6192018-11-21 15:48:31 +01001592 /* do not try to resolve arguments nor to spot inconsistencies when
1593 * the configuration contains fatal errors caused by files not found
1594 * or failed memory allocations.
1595 */
1596 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1597 ha_alert("Fatal errors found in configuration.\n");
1598 exit(1);
1599 }
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001600 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001601 if (global.mode & MODE_MWORKER) {
1602 int proc;
William Lallemand16dd1b32018-11-19 18:46:18 +01001603 struct mworker_proc *tmproc;
1604
William Lallemand482f9a92019-04-12 16:15:00 +02001605 setenv("HAPROXY_MWORKER", "1", 1);
1606
William Lallemand16dd1b32018-11-19 18:46:18 +01001607 if (getenv("HAPROXY_MWORKER_REEXEC") == NULL) {
1608
William Lallemandf3a86832019-04-01 11:29:58 +02001609 tmproc = calloc(1, sizeof(*tmproc));
William Lallemand16dd1b32018-11-19 18:46:18 +01001610 if (!tmproc) {
1611 ha_alert("Cannot allocate process structures.\n");
1612 exit(EXIT_FAILURE);
1613 }
William Lallemand8f7069a2019-04-12 16:09:23 +02001614 tmproc->options |= PROC_O_TYPE_MASTER; /* master */
William Lallemand16dd1b32018-11-19 18:46:18 +01001615 tmproc->reloads = 0;
1616 tmproc->relative_pid = 0;
1617 tmproc->pid = pid;
1618 tmproc->timestamp = start_date.tv_sec;
1619 tmproc->ipc_fd[0] = -1;
1620 tmproc->ipc_fd[1] = -1;
1621
1622 proc_self = tmproc;
1623
1624 LIST_ADDQ(&proc_list, &tmproc->list);
1625 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001626
1627 for (proc = 0; proc < global.nbproc; proc++) {
William Lallemandce83b4a2018-10-26 14:47:30 +02001628
William Lallemandf3a86832019-04-01 11:29:58 +02001629 tmproc = calloc(1, sizeof(*tmproc));
William Lallemandce83b4a2018-10-26 14:47:30 +02001630 if (!tmproc) {
1631 ha_alert("Cannot allocate process structures.\n");
1632 exit(EXIT_FAILURE);
1633 }
1634
William Lallemand8f7069a2019-04-12 16:09:23 +02001635 tmproc->options |= PROC_O_TYPE_WORKER; /* worker */
William Lallemandce83b4a2018-10-26 14:47:30 +02001636 tmproc->pid = -1;
1637 tmproc->reloads = 0;
William Lallemande3683302018-11-19 18:46:17 +01001638 tmproc->timestamp = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001639 tmproc->relative_pid = 1 + proc;
William Lallemand550db6d2018-11-06 17:37:12 +01001640 tmproc->ipc_fd[0] = -1;
1641 tmproc->ipc_fd[1] = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001642
1643 if (mworker_cli_sockpair_new(tmproc, proc) < 0) {
1644 exit(EXIT_FAILURE);
1645 }
1646
1647 LIST_ADDQ(&proc_list, &tmproc->list);
1648 }
William Lallemand944e6192018-11-21 15:48:31 +01001649 }
1650 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
1651 struct wordlist *it, *c;
1652
William Lallemand1b663612018-10-26 14:47:33 +02001653 mworker_env_to_proc_list(); /* get the info of the children in the env */
William Lallemand8a022572018-10-26 14:47:35 +02001654
William Lallemande7361152018-10-26 14:47:36 +02001655
William Lallemand550db6d2018-11-06 17:37:12 +01001656 if (!LIST_ISEMPTY(&mworker_cli_conf)) {
William Lallemande7361152018-10-26 14:47:36 +02001657
William Lallemand550db6d2018-11-06 17:37:12 +01001658 if (mworker_cli_proxy_create() < 0) {
William Lallemande7361152018-10-26 14:47:36 +02001659 ha_alert("Can't create the master's CLI.\n");
1660 exit(EXIT_FAILURE);
1661 }
William Lallemande7361152018-10-26 14:47:36 +02001662
William Lallemand550db6d2018-11-06 17:37:12 +01001663 list_for_each_entry_safe(c, it, &mworker_cli_conf, list) {
1664
1665 if (mworker_cli_proxy_new_listener(c->s) < 0) {
1666 ha_alert("Can't create the master's CLI.\n");
1667 exit(EXIT_FAILURE);
1668 }
1669 LIST_DEL(&c->list);
1670 free(c->s);
1671 free(c);
1672 }
1673 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001674 }
1675
Willy Tarreaubb925012009-07-23 13:36:36 +02001676 err_code |= check_config_validity();
1677 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001678 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001679 exit(1);
1680 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001681
Willy Tarreau0f936722019-04-11 14:47:08 +02001682 pattern_finalize_config();
1683
Willy Tarreau70060452015-12-14 12:46:07 +01001684 /* recompute the amount of per-process memory depending on nbproc and
1685 * the shared SSL cache size (allowed to exist in all processes).
1686 */
1687 if (global.rlimit_memmax_all) {
1688#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
1689 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
1690
1691 global.rlimit_memmax =
1692 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
1693 ssl_cache_bytes) / global.nbproc +
1694 ssl_cache_bytes + 1048575LL) / 1048576LL;
1695#else
1696 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
1697#endif
1698 }
1699
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001700#ifdef CONFIG_HAP_NS
1701 err_code |= netns_init();
1702 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001703 ha_alert("Failed to initialize namespace support.\n");
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001704 exit(1);
1705 }
1706#endif
1707
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001708 /* Apply server states */
1709 apply_server_state();
1710
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001711 for (px = proxies_list; px; px = px->next)
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001712 srv_compute_all_admin_states(px);
1713
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001714 /* Apply servers' configured address */
1715 err_code |= srv_init_addr();
1716 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001717 ha_alert("Failed to initialize server(s) addr.\n");
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001718 exit(1);
1719 }
1720
Willy Tarreaubaaee002006-06-26 02:48:02 +02001721 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001722 struct peers *pr;
1723 struct proxy *px;
1724
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001725 for (pr = cfg_peers; pr; pr = pr->next)
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001726 if (pr->peers_fe)
1727 break;
1728
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001729 for (px = proxies_list; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02001730 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001731 break;
1732
1733 if (pr || px) {
1734 /* At least one peer or one listener has been found */
1735 qfprintf(stdout, "Configuration file is valid\n");
1736 exit(0);
1737 }
1738 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
1739 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001740 }
1741
Emeric Brunc60def82017-09-27 14:59:38 +02001742 global_listener_queue_task = task_new(MAX_THREADS_MASK);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001743 if (!global_listener_queue_task) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001744 ha_alert("Out of memory when initializing global task\n");
Willy Tarreaue9b26022011-08-01 20:57:55 +02001745 exit(1);
1746 }
1747 /* very simple initialization, users will queue the task if needed */
1748 global_listener_queue_task->context = NULL; /* not even a context! */
1749 global_listener_queue_task->process = manage_global_listener_queue;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001750
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001751 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02001752 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02001753
Willy Tarreaue6945732016-12-21 19:57:00 +01001754 list_for_each_entry(pcf, &post_check_list, list) {
1755 err_code |= pcf->fct();
1756 if (err_code & (ERR_ABORT|ERR_FATAL))
1757 exit(1);
1758 }
1759
Willy Tarreaubaaee002006-06-26 02:48:02 +02001760 if (cfg_maxconn > 0)
1761 global.maxconn = cfg_maxconn;
1762
Willy Tarreau8d687d82019-03-01 09:39:42 +01001763 if (global.stats_fe)
1764 global.maxsock += global.stats_fe->maxconn;
1765
1766 if (cfg_peers) {
1767 /* peers also need to bypass global maxconn */
1768 struct peers *p = cfg_peers;
1769
1770 for (p = cfg_peers; p; p = p->next)
1771 if (p->peers_fe)
1772 global.maxsock += p->peers_fe->maxconn;
1773 }
1774
Willy Tarreaubaaee002006-06-26 02:48:02 +02001775 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02001776 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001777 global.pidfile = strdup(cfg_pidfile);
1778 }
1779
Willy Tarreaud0256482015-01-15 21:45:22 +01001780 /* Now we want to compute the maxconn and possibly maxsslconn values.
Willy Tarreauac350932019-03-01 15:43:14 +01001781 * It's a bit tricky. Maxconn defaults to the pre-computed value based
1782 * on rlim_fd_cur and the number of FDs in use due to the configuration,
1783 * and maxsslconn defaults to DEFAULT_MAXSSLCONN. On top of that we can
1784 * enforce a lower limit based on memmax.
Willy Tarreaud0256482015-01-15 21:45:22 +01001785 *
1786 * If memmax is set, then it depends on which values are set. If
1787 * maxsslconn is set, we use memmax to determine how many cleartext
1788 * connections may be added, and set maxconn to the sum of the two.
1789 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1790 * the remaining amount of memory between memmax and the cleartext
1791 * connections. If neither are set, then it is considered that all
1792 * connections are SSL-capable, and maxconn is computed based on this,
1793 * then maxsslconn accordingly. We need to know if SSL is used on the
1794 * frontends, backends, or both, because when it's used on both sides,
1795 * we need twice the value for maxsslconn, but we only count the
1796 * handshake once since it is not performed on the two sides at the
1797 * same time (frontend-side is terminated before backend-side begins).
1798 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001799 * ssl_handshake_cost during its initialization. In any case, if
1800 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1801 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001802 */
Willy Tarreauac350932019-03-01 15:43:14 +01001803 ideal_maxconn = compute_ideal_maxconn();
1804
Willy Tarreaud0256482015-01-15 21:45:22 +01001805 if (!global.rlimit_memmax) {
1806 if (global.maxconn == 0) {
Willy Tarreauac350932019-03-01 15:43:14 +01001807 global.maxconn = ideal_maxconn;
Willy Tarreaud0256482015-01-15 21:45:22 +01001808 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1809 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1810 }
1811 }
1812#ifdef USE_OPENSSL
1813 else if (!global.maxconn && !global.maxsslconn &&
1814 (global.ssl_used_frontend || global.ssl_used_backend)) {
1815 /* memmax is set, compute everything automatically. Here we want
1816 * to ensure that all SSL connections will be served. We take
1817 * care of the number of sides where SSL is used, and consider
1818 * the worst case : SSL used on both sides and doing a handshake
1819 * simultaneously. Note that we can't have more than maxconn
1820 * handshakes at a time by definition, so for the worst case of
1821 * two SSL conns per connection, we count a single handshake.
1822 */
1823 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1824 int64_t mem = global.rlimit_memmax * 1048576ULL;
1825
1826 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1827 mem -= global.maxzlibmem;
1828 mem = mem * MEM_USABLE_RATIO;
1829
1830 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001831 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001832 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1833 global.ssl_handshake_max_cost); // 1 handshake per connection max
1834
Willy Tarreauac350932019-03-01 15:43:14 +01001835 global.maxconn = MIN(global.maxconn, ideal_maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001836 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001837#ifdef SYSTEM_MAXCONN
Willy Tarreauca783d42019-03-13 10:03:07 +01001838 if (global.maxconn > SYSTEM_MAXCONN)
1839 global.maxconn = SYSTEM_MAXCONN;
Willy Tarreau474b96a2015-01-28 19:03:21 +01001840#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001841 global.maxsslconn = sides * global.maxconn;
1842 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1843 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1844 global.maxconn, global.maxsslconn);
1845 }
1846 else if (!global.maxsslconn &&
1847 (global.ssl_used_frontend || global.ssl_used_backend)) {
1848 /* memmax and maxconn are known, compute maxsslconn automatically.
1849 * maxsslconn being forced, we don't know how many of it will be
1850 * on each side if both sides are being used. The worst case is
1851 * when all connections use only one SSL instance because
1852 * handshakes may be on two sides at the same time.
1853 */
1854 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1855 int64_t mem = global.rlimit_memmax * 1048576ULL;
1856 int64_t sslmem;
1857
1858 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1859 mem -= global.maxzlibmem;
1860 mem = mem * MEM_USABLE_RATIO;
1861
Willy Tarreau87b09662015-04-03 00:22:06 +02001862 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001863 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1864 global.maxsslconn = round_2dig(global.maxsslconn);
1865
1866 if (sslmem <= 0 || global.maxsslconn < sides) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001867 ha_alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1868 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1869 "without SSL is %d, but %d was found and SSL is in use.\n",
1870 global.rlimit_memmax,
1871 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
1872 global.maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001873 exit(1);
1874 }
1875
1876 if (global.maxsslconn > sides * global.maxconn)
1877 global.maxsslconn = sides * global.maxconn;
1878
1879 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1880 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1881 }
1882#endif
1883 else if (!global.maxconn) {
1884 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1885 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1886 int64_t mem = global.rlimit_memmax * 1048576ULL;
1887 int64_t clearmem;
1888
1889 if (global.ssl_used_frontend || global.ssl_used_backend)
1890 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1891
1892 mem -= global.maxzlibmem;
1893 mem = mem * MEM_USABLE_RATIO;
1894
1895 clearmem = mem;
1896 if (sides)
1897 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1898
Willy Tarreau87b09662015-04-03 00:22:06 +02001899 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreauac350932019-03-01 15:43:14 +01001900 global.maxconn = MIN(global.maxconn, ideal_maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001901 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001902#ifdef SYSTEM_MAXCONN
Willy Tarreauca783d42019-03-13 10:03:07 +01001903 if (global.maxconn > SYSTEM_MAXCONN)
1904 global.maxconn = SYSTEM_MAXCONN;
Willy Tarreau474b96a2015-01-28 19:03:21 +01001905#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001906
1907 if (clearmem <= 0 || !global.maxconn) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001908 ha_alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
1909 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1910 "is %d, but %d was found.\n",
1911 global.rlimit_memmax,
1912 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
1913 global.maxsslconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001914 exit(1);
1915 }
1916
1917 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1918 if (sides && global.maxsslconn > sides * global.maxconn) {
1919 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
1920 "to be limited to %d. Better reduce global.maxsslconn to get more "
1921 "room for extra connections.\n", global.maxsslconn, global.maxconn);
1922 }
1923 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
1924 }
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001925 }
1926
Willy Tarreau5a023f02019-03-01 14:19:31 +01001927 if (!global.maxpipes)
1928 global.maxpipes = compute_ideal_maxpipes();
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001929
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001930 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001931 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01001932 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreau2c58b412019-03-14 19:10:55 +01001933 global.maxsock += global.nbthread; /* one epoll_fd/kqueue_fd per thread */
1934 global.maxsock += 2 * global.nbthread; /* one wake-up pipe (2 fd) per thread */
1935
Emeric Brunece0c332017-12-06 13:51:49 +01001936 /* compute fd used by async engines */
1937 if (global.ssl_used_async_engines) {
1938 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1939 global.maxsock += global.maxconn * sides * global.ssl_used_async_engines;
1940 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001941
Olivier Houchard88698d92019-04-16 19:07:22 +02001942 /* update connection pool thresholds */
1943 global.tune.pool_low_count = ((long long)global.maxsock * global.tune.pool_low_ratio + 99) / 100;
1944 global.tune.pool_high_count = ((long long)global.maxsock * global.tune.pool_high_ratio + 99) / 100;
1945
Willy Tarreauc8d5b952019-02-27 17:25:52 +01001946 proxy_adjust_all_maxconn();
1947
Willy Tarreau1db37712007-06-03 17:16:49 +02001948 if (global.tune.maxpollevents <= 0)
1949 global.tune.maxpollevents = MAX_POLL_EVENTS;
1950
Olivier Houchard1599b802018-05-24 18:59:04 +02001951 if (global.tune.runqueue_depth <= 0)
1952 global.tune.runqueue_depth = RUNQUEUE_DEPTH;
1953
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01001954 if (global.tune.recv_enough == 0)
1955 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
1956
Willy Tarreau27097842015-09-28 13:53:23 +02001957 if (global.tune.maxrewrite < 0)
1958 global.tune.maxrewrite = MAXREWRITE;
1959
Willy Tarreau27a674e2009-08-17 07:23:33 +02001960 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
1961 global.tune.maxrewrite = global.tune.bufsize / 2;
1962
Willy Tarreaubaaee002006-06-26 02:48:02 +02001963 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
1964 /* command line debug mode inhibits configuration mode */
William Lallemand095ba4c2017-06-01 17:38:50 +02001965 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001966 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
1967 }
1968
William Lallemand095ba4c2017-06-01 17:38:50 +02001969 if (arg_mode & MODE_DAEMON) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001970 /* command line daemon mode inhibits foreground and debug modes mode */
1971 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
William Lallemand095ba4c2017-06-01 17:38:50 +02001972 global.mode |= arg_mode & MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001973 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001974
1975 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001976
William Lallemand095ba4c2017-06-01 17:38:50 +02001977 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001978 ha_warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
William Lallemand095ba4c2017-06-01 17:38:50 +02001979 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001980 }
1981
William Lallemand095ba4c2017-06-01 17:38:50 +02001982 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_MWORKER))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001983 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
Christopher Faulet767a84b2017-11-24 16:50:31 +01001984 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 +02001985 global.nbproc = 1;
1986 }
1987
1988 if (global.nbproc < 1)
1989 global.nbproc = 1;
1990
Christopher Fauletbe0faa22017-08-29 15:37:10 +02001991 if (global.nbthread < 1)
1992 global.nbthread = 1;
1993
Christopher Faulet3ef26392017-08-29 16:46:57 +02001994 /* Realloc trash buffers because global.tune.bufsize may have changed */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001995 if (!init_trash_buffers(0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001996 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet3ef26392017-08-29 16:46:57 +02001997 exit(1);
1998 }
1999
Christopher Faulet96d44832017-11-14 22:02:30 +01002000 if (!init_log_buffers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002001 ha_alert("failed to initialize log buffers.\n");
Christopher Faulet96d44832017-11-14 22:02:30 +01002002 exit(1);
2003 }
2004
Willy Tarreauef1d1f82007-04-16 00:25:25 +02002005 /*
2006 * Note: we could register external pollers here.
2007 * Built-in pollers have been registered before main().
2008 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02002009
Willy Tarreau43b78992009-01-25 15:42:27 +01002010 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02002011 disable_poller("kqueue");
2012
Willy Tarreau43b78992009-01-25 15:42:27 +01002013 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002014 disable_poller("epoll");
2015
Willy Tarreau43b78992009-01-25 15:42:27 +01002016 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002017 disable_poller("poll");
2018
Willy Tarreau43b78992009-01-25 15:42:27 +01002019 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002020 disable_poller("select");
2021
2022 /* Note: we could disable any poller by name here */
2023
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002024 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02002025 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002026 fprintf(stderr, "\n");
2027 list_filters(stderr);
2028 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002029
Willy Tarreau4f60f162007-04-08 16:39:58 +02002030 if (!init_pollers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002031 ha_alert("No polling mechanism available.\n"
2032 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
2033 " is too low on this platform to support maxconn and the number of listeners\n"
2034 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
2035 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
2036 " global maxconn setting to accommodate the system's limitation. For reference,\n"
2037 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
2038 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
2039 " check build settings using 'haproxy -vv'.\n\n",
2040 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002041 exit(1);
2042 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002043 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2044 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002045 }
2046
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002047 if (!global.node)
2048 global.node = strdup(hostname);
2049
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01002050 if (!hlua_post_init())
2051 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01002052
Maxime de Roucy0f503922016-05-13 23:52:55 +02002053 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002054}
2055
Simon Horman6fb82592011-07-15 13:14:11 +09002056static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09002057{
Simon Hormanac821422011-07-15 13:14:09 +09002058 struct acl_term_suite *suite, *suiteb;
2059 struct acl_term *term, *termb;
2060
Simon Horman6fb82592011-07-15 13:14:11 +09002061 if (!cond)
2062 return;
2063
2064 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
2065 list_for_each_entry_safe(term, termb, &suite->terms, list) {
2066 LIST_DEL(&term->list);
2067 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09002068 }
Simon Horman6fb82592011-07-15 13:14:11 +09002069 LIST_DEL(&suite->list);
2070 free(suite);
2071 }
2072
2073 free(cond);
2074}
2075
2076static void deinit_tcp_rules(struct list *rules)
2077{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02002078 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09002079
2080 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09002081 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09002082 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09002083 free(trule);
2084 }
2085}
2086
Simon Horman6fb82592011-07-15 13:14:11 +09002087static void deinit_stick_rules(struct list *rules)
2088{
2089 struct sticking_rule *rule, *ruleb;
2090
2091 list_for_each_entry_safe(rule, ruleb, rules, list) {
2092 LIST_DEL(&rule->list);
2093 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02002094 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09002095 free(rule);
2096 }
2097}
2098
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002099void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002100{
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002101 struct proxy *p = proxies_list, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002102 struct cap_hdr *h,*h_next;
2103 struct server *s,*s_next;
2104 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002105 struct acl_cond *cond, *condb;
2106 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002107 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002108 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002109 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002110 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002111 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01002112 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002113 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02002114 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01002115 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002116 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002117 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01002118 struct post_deinit_fct *pdf;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002119 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002120
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002121 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002122 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02002123 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002124 free(p->id);
2125 free(p->check_req);
2126 free(p->cookie_name);
2127 free(p->cookie_domain);
Willy Tarreau4c03d1c2019-01-14 15:23:54 +01002128 free(p->lbprm.arg_str);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002129 free(p->capture_name);
2130 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09002131 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02002132 if (p->conf.logformat_string != default_http_log_format &&
2133 p->conf.logformat_string != default_tcp_log_format &&
2134 p->conf.logformat_string != clf_http_log_format)
2135 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02002136
Willy Tarreau62a61232013-04-12 18:13:46 +02002137 free(p->conf.lfs_file);
2138 free(p->conf.uniqueid_format_string);
2139 free(p->conf.uif_file);
Willy Tarreau0cac26c2019-01-14 16:55:42 +01002140 if ((p->lbprm.algo & BE_LB_LKUP) == BE_LB_LKUP_MAP)
2141 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002142
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002143 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
2144 free(p->conf.logformat_sd_string);
2145 free(p->conf.lfsd_file);
2146
Willy Tarreaua534fea2008-08-03 12:19:50 +02002147 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02002148 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002149
Willy Tarreauf4f04122010-01-28 18:10:50 +01002150 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
2151 LIST_DEL(&cwl->list);
2152 free(cwl->s);
2153 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002154 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002155
Willy Tarreauf4f04122010-01-28 18:10:50 +01002156 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
2157 LIST_DEL(&cwl->list);
2158 free(cwl->s);
2159 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002160 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002161
Willy Tarreaub80c2302007-11-30 20:51:32 +01002162 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
2163 LIST_DEL(&cond->list);
2164 prune_acl_cond(cond);
2165 free(cond);
2166 }
2167
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002168 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002169 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002170 regex_free(exp->preg);
2171 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002172 }
2173
Willy Tarreau98d04852015-05-26 12:18:29 +02002174 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002175 expb = exp;
2176 exp = exp->next;
2177 free(expb);
2178 }
2179
2180 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002181 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002182 regex_free(exp->preg);
2183 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002184 }
2185
Willy Tarreau98d04852015-05-26 12:18:29 +02002186 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002187 expb = exp;
2188 exp = exp->next;
2189 free(expb);
2190 }
2191
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002192 /* build a list of unique uri_auths */
2193 if (!ua)
2194 ua = p->uri_auth;
2195 else {
2196 /* check if p->uri_auth is unique */
2197 for (uap = ua; uap; uap=uap->next)
2198 if (uap == p->uri_auth)
2199 break;
2200
Willy Tarreauaccc4e12008-06-24 11:14:45 +02002201 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002202 /* add it, if it is */
2203 p->uri_auth->next = ua;
2204 ua = p->uri_auth;
2205 }
2206 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002207
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002208 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
2209 LIST_DEL(&acl->list);
2210 prune_acl(acl);
2211 free(acl);
2212 }
2213
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002214 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
2215 LIST_DEL(&srule->list);
2216 prune_acl_cond(srule->cond);
2217 free(srule->cond);
2218 free(srule);
2219 }
2220
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002221 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
2222 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002223 if (rule->cond) {
2224 prune_acl_cond(rule->cond);
2225 free(rule->cond);
Thierry FOURNIER / OZON.IO4ed1c952016-11-24 23:57:54 +01002226 free(rule->file);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002227 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002228 free(rule);
2229 }
2230
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002231 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
2232 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01002233 if (rdr->cond) {
2234 prune_acl_cond(rdr->cond);
2235 free(rdr->cond);
2236 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002237 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01002238 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
2239 LIST_DEL(&lf->list);
2240 free(lf);
2241 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002242 free(rdr);
2243 }
2244
William Lallemand0f99e342011-10-12 17:50:54 +02002245 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
2246 LIST_DEL(&log->list);
2247 free(log);
2248 }
2249
William Lallemand723b73a2012-02-08 16:37:49 +01002250 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
2251 LIST_DEL(&lf->list);
2252 free(lf);
2253 }
2254
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002255 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
2256 LIST_DEL(&lf->list);
2257 free(lf);
2258 }
2259
Simon Hormanac821422011-07-15 13:14:09 +09002260 deinit_tcp_rules(&p->tcp_req.inspect_rules);
Kevin Zhu13ebef72019-01-30 16:01:21 +08002261 deinit_tcp_rules(&p->tcp_rep.inspect_rules);
Simon Hormanac821422011-07-15 13:14:09 +09002262 deinit_tcp_rules(&p->tcp_req.l4_rules);
2263
Simon Horman6fb82592011-07-15 13:14:11 +09002264 deinit_stick_rules(&p->storersp_rules);
2265 deinit_stick_rules(&p->sticking_rules);
2266
Willy Tarreaubaaee002006-06-26 02:48:02 +02002267 h = p->req_cap;
2268 while (h) {
2269 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002270 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002271 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002272 free(h);
2273 h = h_next;
2274 }/* end while(h) */
2275
2276 h = p->rsp_cap;
2277 while (h) {
2278 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002279 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002280 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002281 free(h);
2282 h = h_next;
2283 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002284
Willy Tarreaubaaee002006-06-26 02:48:02 +02002285 s = p->srv;
2286 while (s) {
2287 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002288
Olivier Houchard3f795f72019-04-17 22:51:06 +02002289 if (s->check.task)
2290 task_destroy(s->check.task);
2291 if (s->agent.task)
2292 task_destroy(s->agent.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002293
Olivier Houchard3f795f72019-04-17 22:51:06 +02002294 if (s->warmup)
2295 task_destroy(s->warmup);
Willy Tarreau2e993902011-10-31 11:53:20 +01002296
Willy Tarreaua534fea2008-08-03 12:19:50 +02002297 free(s->id);
2298 free(s->cookie);
Willy Tarreauc9fa0482018-07-10 17:43:27 +02002299 free(s->check.bi.area);
2300 free(s->check.bo.area);
2301 free(s->agent.bi.area);
2302 free(s->agent.bo.area);
James Brown55f9ff12015-10-21 18:19:05 -07002303 free(s->agent.send_string);
Christopher Faulet67957bd2017-09-27 11:00:59 +02002304 free(s->hostname_dn);
Sárközi, László34c01792014-09-05 10:08:23 +02002305 free((char*)s->conf.file);
Olivier Houchard7fc3be72018-11-22 18:50:54 +01002306 free(s->idle_conns);
2307 free(s->priv_conns);
2308 free(s->safe_conns);
Olivier Houchard0c18a6f2018-12-02 14:11:41 +01002309 free(s->idle_orphan_conns);
Olivier Houchardf1314812019-02-18 16:41:17 +01002310 free(s->curr_idle_thr);
Willy Tarreau17d45382016-12-22 21:16:08 +01002311
2312 if (s->use_ssl || s->check.use_ssl) {
2313 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
2314 xprt_get(XPRT_SSL)->destroy_srv(s);
2315 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002316 HA_SPIN_DESTROY(&s->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002317 free(s);
2318 s = s_next;
2319 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002320
Willy Tarreau4348fad2012-09-20 16:48:07 +02002321 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002322 /*
2323 * Zombie proxy, the listener just pretend to be up
2324 * because they still hold an opened fd.
2325 * Close it and give the listener its real state.
2326 */
2327 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
2328 close(l->fd);
2329 l->state = LI_INIT;
2330 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02002331 unbind_listener(l);
2332 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002333 LIST_DEL(&l->by_fe);
2334 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002335 free(l->name);
2336 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002337 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002338 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002339
Willy Tarreau4348fad2012-09-20 16:48:07 +02002340 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002341 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01002342 if (bind_conf->xprt->destroy_bind_conf)
2343 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002344 free(bind_conf->file);
2345 free(bind_conf->arg);
2346 LIST_DEL(&bind_conf->by_fe);
2347 free(bind_conf);
2348 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02002349
Christopher Fauletd7c91962015-04-30 11:48:27 +02002350 flt_deinit(p);
2351
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002352 free(p->desc);
2353 free(p->fwdfor_hdr_name);
2354
Willy Tarreauff011f22011-01-06 17:51:27 +01002355 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06002356 free_http_res_rules(&p->http_res_rules);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002357 task_destroy(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01002358
Willy Tarreaubafbe012017-11-24 17:34:44 +01002359 pool_destroy(p->req_cap_pool);
2360 pool_destroy(p->rsp_cap_pool);
2361 pool_destroy(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002362
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002363 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002364 p = p->next;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002365 HA_SPIN_DESTROY(&p0->lbprm.lock);
2366 HA_SPIN_DESTROY(&p0->lock);
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002367 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002368 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02002369
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002370 while (ua) {
2371 uap = ua;
2372 ua = ua->next;
2373
Willy Tarreaua534fea2008-08-03 12:19:50 +02002374 free(uap->uri_prefix);
2375 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002376 free(uap->node);
2377 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002378
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002379 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01002380 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002381
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002382 free(uap);
2383 }
2384
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002385 userlist_free(userlist);
2386
David Carlier834cb2e2015-09-25 12:02:25 +01002387 cfg_unregister_sections();
2388
Christopher Faulet0132d062017-07-26 15:33:35 +02002389 deinit_log_buffers();
David Carlier834cb2e2015-09-25 12:02:25 +01002390
Willy Tarreaudd815982007-10-16 12:25:14 +02002391 protocol_unbind_all();
2392
Willy Tarreau05554e62016-12-21 20:46:26 +01002393 list_for_each_entry(pdf, &post_deinit_list, list)
2394 pdf->fct();
2395
Joe Williamsdf5b38f2010-12-29 17:05:48 +01002396 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02002397 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002398 free(global.chroot); global.chroot = NULL;
2399 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002400 free(global.node); global.node = NULL;
2401 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002402 free(oldpids); oldpids = NULL;
Olivier Houchard3f795f72019-04-17 22:51:06 +02002403 task_destroy(global_listener_queue_task); global_listener_queue_task = NULL;
2404 task_destroy(idle_conn_task);
Olivier Houchard9ea5d362019-02-14 18:29:09 +01002405 idle_conn_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002406
William Lallemand0f99e342011-10-12 17:50:54 +02002407 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
2408 LIST_DEL(&log->list);
2409 free(log);
2410 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01002411 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02002412 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01002413 LIST_DEL(&wl->list);
2414 free(wl);
2415 }
2416
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002417 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
2418 if (bol->must_free)
2419 free((void *)bol->str);
2420 LIST_DEL(&bol->list);
2421 free(bol);
2422 }
2423
Christopher Fauletff2613e2016-11-09 11:36:17 +01002424 vars_prune(&global.vars, NULL, NULL);
Willy Tarreau2455ceb2018-11-26 15:57:34 +01002425 pool_destroy_all();
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002426 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002427} /* end deinit() */
2428
William Lallemand72160322018-11-06 17:37:16 +01002429
Willy Tarreau918ff602011-07-25 16:33:49 +02002430/* Runs the polling loop */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01002431static void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02002432{
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002433 int next, exp;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002434
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002435 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002436 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002437 /* Process a few tasks */
2438 process_runnable_tasks();
2439
William Lallemand1aab50b2018-06-07 09:46:01 +02002440 /* check if we caught some signals and process them in the
2441 first thread */
2442 if (tid == 0)
2443 signal_process_queue();
Willy Tarreau29857942009-05-10 09:01:21 +02002444
Willy Tarreau58b458d2008-06-29 22:40:23 +02002445 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002446 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002447
Willy Tarreau85c459d2018-08-02 10:54:31 +02002448 /* stop when there's nothing left to do */
William Lallemanda7199262018-11-16 16:57:20 +01002449 if ((jobs - unstoppable_jobs) == 0)
Willy Tarreau85c459d2018-08-02 10:54:31 +02002450 break;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002451
Willy Tarreau10146c92015-04-13 20:44:19 +02002452 /* expire immediately if events are pending */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002453 exp = now_ms;
Christopher Faulet32467fe2018-01-15 12:16:34 +01002454 if (fd_cache_mask & tid_bit)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002455 activity[tid].wake_cache++;
2456 else if (active_tasks_mask & tid_bit)
2457 activity[tid].wake_tasks++;
William Lallemand1aab50b2018-06-07 09:46:01 +02002458 else if (signal_queue_len && tid == 0)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002459 activity[tid].wake_signal++;
Olivier Houchard79321b92018-07-26 17:55:11 +02002460 else {
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002461 _HA_ATOMIC_OR(&sleeping_thread_mask, tid_bit);
2462 __ha_barrier_atomic_store();
Olivier Houchard79321b92018-07-26 17:55:11 +02002463 if (active_tasks_mask & tid_bit) {
2464 activity[tid].wake_tasks++;
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002465 _HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Olivier Houchard79321b92018-07-26 17:55:11 +02002466 } else
2467 exp = next;
2468 }
Willy Tarreau10146c92015-04-13 20:44:19 +02002469
Willy Tarreau58b458d2008-06-29 22:40:23 +02002470 /* The poller will ensure it returns around <next> */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002471 cur_poller.poll(&cur_poller, exp);
Olivier Houchard79321b92018-07-26 17:55:11 +02002472 if (sleeping_thread_mask & tid_bit)
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002473 _HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01002474 fd_process_cached_events();
Emeric Brun64cc49c2017-10-03 14:46:45 +02002475
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002476 activity[tid].loops++;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002477 }
2478}
2479
Christopher Faulet1d17c102017-08-29 15:38:48 +02002480static void *run_thread_poll_loop(void *data)
2481{
2482 struct per_thread_init_fct *ptif;
2483 struct per_thread_deinit_fct *ptdf;
Christopher Fauletda18b9d2018-01-25 16:10:16 +01002484 __decl_hathreads(static HA_SPINLOCK_T start_lock);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002485
Willy Tarreau0c026f42018-08-01 19:12:20 +02002486 ha_set_tid(*((unsigned int *)data));
Christopher Faulet1d17c102017-08-29 15:38:48 +02002487 tv_update_date(-1,-1);
2488
2489 list_for_each_entry(ptif, &per_thread_init_list, list) {
2490 if (!ptif->fct()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002491 ha_alert("failed to initialize thread %u.\n", tid);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002492 exit(1);
2493 }
2494 }
2495
William Lallemandbc193052018-09-11 10:06:26 +02002496 if ((global.mode & MODE_MWORKER) && master == 0) {
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002497 HA_SPIN_LOCK(START_LOCK, &start_lock);
2498 mworker_pipe_register();
2499 HA_SPIN_UNLOCK(START_LOCK, &start_lock);
2500 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002501
2502 protocol_enable_all();
Christopher Faulet1d17c102017-08-29 15:38:48 +02002503 run_poll_loop();
2504
2505 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
2506 ptdf->fct();
2507
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002508#ifdef USE_THREAD
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002509 _HA_ATOMIC_AND(&all_threads_mask, ~tid_bit);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002510 if (tid > 0)
2511 pthread_exit(NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002512#endif
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002513 return NULL;
2514}
Christopher Faulet1d17c102017-08-29 15:38:48 +02002515
Willy Tarreaue9b26022011-08-01 20:57:55 +02002516/* This is the global management task for listeners. It enables listeners waiting
2517 * for global resources when there are enough free resource, or at least once in
2518 * a while. It is designed to be called as a task.
2519 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02002520static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state)
Willy Tarreaue9b26022011-08-01 20:57:55 +02002521{
2522 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02002523 /* queue is empty, nothing to do */
2524 if (LIST_ISEMPTY(&global_listener_queue))
2525 goto out;
2526
2527 /* If there are still too many concurrent connections, let's wait for
2528 * some of them to go away. We don't need to re-arm the timer because
2529 * each of them will scan the queue anyway.
2530 */
2531 if (unlikely(actconn >= global.maxconn))
2532 goto out;
2533
2534 /* We should periodically try to enable listeners waiting for a global
2535 * resource here, because it is possible, though very unlikely, that
2536 * they have been blocked by a temporary lack of global resource such
2537 * as a file descriptor or memory and that the temporary condition has
2538 * disappeared.
2539 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002540 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02002541
2542 out:
2543 t->expire = next;
2544 task_queue(t);
2545 return t;
2546}
Willy Tarreau4f60f162007-04-08 16:39:58 +02002547
Willy Tarreaubaaee002006-06-26 02:48:02 +02002548int main(int argc, char **argv)
2549{
2550 int err, retry;
2551 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02002552 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02002553 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002554
Olivier Houchard5fa300d2018-02-03 15:15:21 +01002555 setvbuf(stdout, NULL, _IONBF, 0);
Willy Tarreau5794fb02018-11-25 18:43:29 +01002556
Willy Tarreauff9c9142019-02-07 10:39:36 +01002557 /* this can only safely be done here, though it's optimized away by
2558 * the compiler.
2559 */
2560 if (MAX_PROCS < 1 || MAX_PROCS > LONGBITS) {
2561 ha_alert("MAX_PROCS value must be between 1 and %d inclusive; "
2562 "HAProxy was built with value %d, please fix it and rebuild.\n",
2563 LONGBITS, MAX_PROCS);
2564 exit(1);
2565 }
2566
Willy Tarreaubf696402019-03-01 10:09:28 +01002567 /* take a copy of initial limits before we possibly change them */
2568 getrlimit(RLIMIT_NOFILE, &limit);
2569 rlim_fd_cur_at_boot = limit.rlim_cur;
2570 rlim_fd_max_at_boot = limit.rlim_max;
2571
Willy Tarreau5794fb02018-11-25 18:43:29 +01002572 /* process all initcalls in order of potential dependency */
2573 RUN_INITCALLS(STG_PREPARE);
2574 RUN_INITCALLS(STG_LOCK);
2575 RUN_INITCALLS(STG_ALLOC);
2576 RUN_INITCALLS(STG_POOL);
2577 RUN_INITCALLS(STG_REGISTER);
2578 RUN_INITCALLS(STG_INIT);
2579
Emeric Bruncf20bf12010-10-22 16:06:11 +02002580 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002581 signal_register_fct(SIGQUIT, dump, SIGQUIT);
2582 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
2583 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
William Lallemand73b85e72017-06-01 17:38:51 +02002584 signal_register_fct(SIGUSR2, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002585
Willy Tarreaue437c442010-03-17 18:02:46 +01002586 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
2587 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
2588 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002589 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002590 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002591
Willy Tarreaudc23a922011-02-16 11:10:36 +01002592 /* ulimits */
2593 if (!global.rlimit_nofile)
2594 global.rlimit_nofile = global.maxsock;
2595
2596 if (global.rlimit_nofile) {
Willy Tarreaue5cfdac2019-03-01 10:32:05 +01002597 limit.rlim_cur = global.rlimit_nofile;
2598 limit.rlim_max = MAX(rlim_fd_max_at_boot, limit.rlim_cur);
2599
Willy Tarreaudc23a922011-02-16 11:10:36 +01002600 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02002601 /* try to set it to the max possible at least */
2602 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02002603 limit.rlim_cur = limit.rlim_max;
2604 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
2605 getrlimit(RLIMIT_NOFILE, &limit);
2606
Christopher Faulet767a84b2017-11-24 16:50:31 +01002607 ha_warning("[%s.main()] Cannot raise FD limit to %d, limit is %d.\n", argv[0], global.rlimit_nofile, (int)limit.rlim_cur);
Willy Tarreauef635472016-06-21 11:48:18 +02002608 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002609 }
2610 }
2611
2612 if (global.rlimit_memmax) {
2613 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01002614 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002615#ifdef RLIMIT_AS
2616 if (setrlimit(RLIMIT_AS, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002617 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2618 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002619 }
2620#else
2621 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002622 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2623 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002624 }
2625#endif
2626 }
2627
Olivier Houchardf73629d2017-04-05 22:33:04 +02002628 if (old_unixsocket) {
William Lallemand85b0bd92017-06-01 17:38:53 +02002629 if (strcmp("/dev/null", old_unixsocket) != 0) {
2630 if (get_old_sockets(old_unixsocket) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002631 ha_alert("Failed to get the sockets from the old process!\n");
William Lallemand85b0bd92017-06-01 17:38:53 +02002632 if (!(global.mode & MODE_MWORKER))
2633 exit(1);
2634 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002635 }
2636 }
William Lallemand85b0bd92017-06-01 17:38:53 +02002637 get_cur_unixsocket();
2638
Willy Tarreaubaaee002006-06-26 02:48:02 +02002639 /* We will loop at most 100 times with 10 ms delay each time.
2640 * That's at most 1 second. We only send a signal to old pids
2641 * if we cannot grab at least one port.
2642 */
2643 retry = MAX_START_RETRIES;
2644 err = ERR_NONE;
2645 while (retry >= 0) {
2646 struct timeval w;
2647 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01002648 /* exit the loop on no error or fatal error */
2649 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002650 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02002651 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002652 break;
2653
2654 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
2655 * listening sockets. So on those platforms, it would be wiser to
2656 * simply send SIGUSR1, which will not be undoable.
2657 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02002658 if (tell_old_pids(SIGTTOU) == 0) {
2659 /* no need to wait if we can't contact old pids */
2660 retry = 0;
2661 continue;
2662 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002663 /* give some time to old processes to stop listening */
2664 w.tv_sec = 0;
2665 w.tv_usec = 10*1000;
2666 select(0, NULL, NULL, NULL, &w);
2667 retry--;
2668 }
2669
2670 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01002671 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02002672 if (retry != MAX_START_RETRIES && nb_oldpids) {
2673 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002674 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02002675 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002676 exit(1);
2677 }
2678
William Lallemand944e6192018-11-21 15:48:31 +01002679 if (!(global.mode & MODE_MWORKER_WAIT) && listeners == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002680 ha_alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002681 /* Note: we don't have to send anything to the old pids because we
2682 * never stopped them. */
2683 exit(1);
2684 }
2685
Emeric Bruncf20bf12010-10-22 16:06:11 +02002686 err = protocol_bind_all(errmsg, sizeof(errmsg));
2687 if ((err & ~ERR_WARN) != ERR_NONE) {
2688 if ((err & ERR_ALERT) || (err & ERR_WARN))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002689 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002690
Christopher Faulet767a84b2017-11-24 16:50:31 +01002691 ha_alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002692 protocol_unbind_all(); /* cleanup everything we can */
2693 if (nb_oldpids)
2694 tell_old_pids(SIGTTIN);
2695 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002696 } else if (err & ERR_WARN) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002697 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02002698 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002699 /* Ok, all listener should now be bound, close any leftover sockets
2700 * the previous process gave us, we don't need them anymore
2701 */
2702 while (xfer_sock_list != NULL) {
2703 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
2704 close(xfer_sock_list->fd);
2705 free(xfer_sock_list->iface);
2706 free(xfer_sock_list->namespace);
2707 free(xfer_sock_list);
2708 xfer_sock_list = tmpxfer;
2709 }
Willy Tarreaudd815982007-10-16 12:25:14 +02002710
Willy Tarreaubaaee002006-06-26 02:48:02 +02002711 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002712 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
2713 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002714
Willy Tarreaubaaee002006-06-26 02:48:02 +02002715 /* MODE_QUIET can inhibit alerts and warnings below this line */
2716
PiBa-NL149a81a2017-12-25 21:03:31 +01002717 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL) {
2718 /* either stdin/out/err are already closed or should stay as they are. */
2719 if ((global.mode & MODE_DAEMON)) {
2720 /* daemon mode re-executing, stdin/stdout/stderr are already closed so keep quiet */
2721 global.mode &= ~MODE_VERBOSE;
2722 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2723 }
2724 } else {
2725 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
2726 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01002727 stdio_quiet(-1);
PiBa-NL149a81a2017-12-25 21:03:31 +01002728 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002729 }
2730
2731 /* open log & pid files before the chroot */
William Lallemand80293002017-11-06 11:00:03 +01002732 if ((global.mode & MODE_DAEMON || global.mode & MODE_MWORKER) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002733 unlink(global.pidfile);
2734 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
2735 if (pidfd < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002736 ha_alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002737 if (nb_oldpids)
2738 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02002739 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002740 exit(1);
2741 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002742 }
2743
Willy Tarreaub38651a2007-03-24 17:24:39 +01002744 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002745 ha_alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
2746 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002747 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01002748 exit(1);
2749 }
2750
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002751 /* If the user is not root, we'll still let him try the configuration
2752 * but we inform him that unexpected behaviour may occur.
2753 */
2754 if ((global.last_checks & LSTCHK_NETADM) && getuid())
Christopher Faulet767a84b2017-11-24 16:50:31 +01002755 ha_warning("[%s.main()] Some options which require full privileges"
2756 " might not work well.\n"
2757 "", argv[0]);
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002758
William Lallemand095ba4c2017-06-01 17:38:50 +02002759 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2760
2761 /* chroot if needed */
2762 if (global.chroot != NULL) {
2763 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002764 ha_alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02002765 if (nb_oldpids)
2766 tell_old_pids(SIGTTIN);
2767 protocol_unbind_all();
2768 exit(1);
2769 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002770 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002771 }
2772
William Lallemand944e6192018-11-21 15:48:31 +01002773 if (nb_oldpids && !(global.mode & MODE_MWORKER_WAIT))
Willy Tarreaubb545b42010-08-25 12:58:59 +02002774 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002775
William Lallemand8a361b52017-06-20 11:20:33 +02002776 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
2777 nb_oldpids = 0;
2778 free(oldpids);
2779 oldpids = NULL;
2780 }
2781
2782
Willy Tarreaubaaee002006-06-26 02:48:02 +02002783 /* Note that any error at this stage will be fatal because we will not
2784 * be able to restart the old pids.
2785 */
2786
William Lallemand095ba4c2017-06-01 17:38:50 +02002787 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2788 /* setgid / setuid */
2789 if (global.gid) {
2790 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01002791 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2792 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002793
2794 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002795 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02002796 protocol_unbind_all();
2797 exit(1);
2798 }
2799 }
Michael Schererab012dd2013-01-12 18:35:19 +01002800
William Lallemand095ba4c2017-06-01 17:38:50 +02002801 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002802 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Michael Schererab012dd2013-01-12 18:35:19 +01002803 protocol_unbind_all();
2804 exit(1);
2805 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002806 }
Willy Tarreau636848a2019-04-15 19:38:50 +02002807
2808 /* try our best to re-enable core dumps depending on system capabilities.
2809 * What is addressed here :
2810 * - remove file size limits
2811 * - remove core size limits
2812 * - mark the process dumpable again if it lost it due to user/group
2813 */
2814 if (global.tune.options & GTUNE_SET_DUMPABLE) {
2815 limit.rlim_cur = limit.rlim_max = RLIM_INFINITY;
2816
2817#if defined(RLIMIT_FSIZE)
2818 if (setrlimit(RLIMIT_FSIZE, &limit) == -1)
2819 ha_warning("[%s.main()] Failed to set the raise the maximum file size.\n", argv[0]);
2820#endif
2821
2822#if defined(RLIMIT_CORE)
2823 if (setrlimit(RLIMIT_CORE, &limit) == -1)
2824 ha_warning("[%s.main()] Failed to set the raise the core dump size.\n", argv[0]);
2825#endif
2826
2827#if defined(USE_PRCTL)
2828 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1)
2829 ha_warning("[%s.main()] Failed to set the dumpable flag, no core will be dumped.\n", argv[0]);
2830#endif
2831 }
2832
Willy Tarreaubaaee002006-06-26 02:48:02 +02002833 /* check ulimits */
2834 limit.rlim_cur = limit.rlim_max = 0;
2835 getrlimit(RLIMIT_NOFILE, &limit);
2836 if (limit.rlim_cur < global.maxsock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002837 ha_warning("[%s.main()] FD limit (%d) too low for maxconn=%d/maxsock=%d. Please raise 'ulimit-n' to %d or more to avoid any trouble.\n",
2838 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002839 }
2840
William Lallemand944e6192018-11-21 15:48:31 +01002841 if (global.mode & (MODE_DAEMON | MODE_MWORKER | MODE_MWORKER_WAIT)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002842 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002843 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002844 int ret = 0;
2845 int proc;
William Lallemande1340412017-12-28 16:09:36 +01002846 int devnullfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002847
William Lallemand095ba4c2017-06-01 17:38:50 +02002848 /*
2849 * if daemon + mworker: must fork here to let a master
2850 * process live in background before forking children
2851 */
William Lallemand73b85e72017-06-01 17:38:51 +02002852
2853 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)
2854 && (global.mode & MODE_MWORKER)
2855 && (global.mode & MODE_DAEMON)) {
William Lallemand095ba4c2017-06-01 17:38:50 +02002856 ret = fork();
2857 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002858 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002859 protocol_unbind_all();
2860 exit(1); /* there has been an error */
William Lallemandbfd8eb52018-07-04 15:31:23 +02002861 } else if (ret > 0) { /* parent leave to daemonize */
William Lallemand095ba4c2017-06-01 17:38:50 +02002862 exit(0);
William Lallemandbfd8eb52018-07-04 15:31:23 +02002863 } else /* change the process group ID in the child (master process) */
2864 setsid();
William Lallemand095ba4c2017-06-01 17:38:50 +02002865 }
William Lallemande20b6a62017-06-01 17:38:55 +02002866
William Lallemande20b6a62017-06-01 17:38:55 +02002867
William Lallemanddeed7802017-11-06 11:00:04 +01002868 /* if in master-worker mode, write the PID of the father */
2869 if (global.mode & MODE_MWORKER) {
2870 char pidstr[100];
2871 snprintf(pidstr, sizeof(pidstr), "%d\n", getpid());
Willy Tarreau46ec48b2018-01-23 19:20:19 +01002872 if (pidfd >= 0)
2873 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
William Lallemanddeed7802017-11-06 11:00:04 +01002874 }
2875
Willy Tarreaubaaee002006-06-26 02:48:02 +02002876 /* the father launches the required number of processes */
William Lallemand944e6192018-11-21 15:48:31 +01002877 if (!(global.mode & MODE_MWORKER_WAIT)) {
William Lallemand9a1ee7a2019-04-01 11:30:02 +02002878 if (global.mode & MODE_MWORKER)
2879 mworker_ext_launch_all();
William Lallemand944e6192018-11-21 15:48:31 +01002880 for (proc = 0; proc < global.nbproc; proc++) {
2881 ret = fork();
2882 if (ret < 0) {
2883 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
2884 protocol_unbind_all();
2885 exit(1); /* there has been an error */
2886 }
2887 else if (ret == 0) /* child breaks here */
2888 break;
William Lallemand944e6192018-11-21 15:48:31 +01002889 if (pidfd >= 0 && !(global.mode & MODE_MWORKER)) {
2890 char pidstr[100];
2891 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
2892 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
2893 }
2894 if (global.mode & MODE_MWORKER) {
2895 struct mworker_proc *child;
William Lallemandce83b4a2018-10-26 14:47:30 +02002896
William Lallemand220567e2018-11-21 18:04:53 +01002897 ha_notice("New worker #%d (%d) forked\n", relative_pid, ret);
William Lallemand944e6192018-11-21 15:48:31 +01002898 /* find the right mworker_proc */
2899 list_for_each_entry(child, &proc_list, list) {
2900 if (child->relative_pid == relative_pid &&
William Lallemand8f7069a2019-04-12 16:09:23 +02002901 child->reloads == 0 && child->options & PROC_O_TYPE_WORKER) {
William Lallemand944e6192018-11-21 15:48:31 +01002902 child->timestamp = now.tv_sec;
2903 child->pid = ret;
2904 break;
2905 }
William Lallemandce83b4a2018-10-26 14:47:30 +02002906 }
2907 }
William Lallemandbc193052018-09-11 10:06:26 +02002908
William Lallemand944e6192018-11-21 15:48:31 +01002909 relative_pid++; /* each child will get a different one */
2910 pid_bit <<= 1;
2911 }
2912 } else {
2913 /* wait mode */
2914 global.nbproc = 1;
2915 proc = 1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002916 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002917
2918#ifdef USE_CPU_AFFINITY
2919 if (proc < global.nbproc && /* child */
Willy Tarreauff9c9142019-02-07 10:39:36 +01002920 proc < MAX_PROCS && /* only the first 32/64 processes may be pinned */
Christopher Fauletcb6a9452017-11-22 16:50:41 +01002921 global.cpu_map.proc[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002922#ifdef __FreeBSD__
Olivier Houchard97148f62017-08-16 17:29:11 +02002923 {
2924 cpuset_t cpuset;
2925 int i;
Christopher Fauletcb6a9452017-11-22 16:50:41 +01002926 unsigned long cpu_map = global.cpu_map.proc[proc];
Olivier Houchard97148f62017-08-16 17:29:11 +02002927
2928 CPU_ZERO(&cpuset);
2929 while ((i = ffsl(cpu_map)) > 0) {
2930 CPU_SET(i - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01002931 cpu_map &= ~(1UL << (i - 1));
Olivier Houchard97148f62017-08-16 17:29:11 +02002932 }
2933 ret = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset), &cpuset);
2934 }
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002935#else
Christopher Fauletcb6a9452017-11-22 16:50:41 +01002936 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map.proc[proc]);
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002937#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002938#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02002939 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02002940 if (pidfd >= 0) {
2941 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
2942 close(pidfd);
2943 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02002944
2945 /* We won't ever use this anymore */
Willy Tarreaud137dd32010-08-25 12:49:05 +02002946 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002947
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002948 if (proc == global.nbproc) {
William Lallemand944e6192018-11-21 15:48:31 +01002949 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
PiBa-NLbaf6ea42017-11-28 23:26:08 +01002950
2951 if ((!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
2952 (global.mode & MODE_DAEMON)) {
2953 /* detach from the tty, this is required to properly daemonize. */
William Lallemande1340412017-12-28 16:09:36 +01002954 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL))
2955 stdio_quiet(-1);
2956
PiBa-NLbaf6ea42017-11-28 23:26:08 +01002957 global.mode &= ~MODE_VERBOSE;
2958 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
PiBa-NLbaf6ea42017-11-28 23:26:08 +01002959 }
2960
William Lallemandb3f2be32018-09-11 10:06:18 +02002961 mworker_loop();
William Lallemand1499b9b2017-06-07 15:04:47 +02002962 /* should never get there */
2963 exit(EXIT_FAILURE);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002964 }
William Lallemandcf4e4962017-06-08 19:05:48 +02002965#if defined(USE_OPENSSL) && !defined(OPENSSL_NO_DH)
Grant Zhang872f9c22017-01-21 01:10:18 +00002966 ssl_free_dh();
2967#endif
William Lallemand1499b9b2017-06-07 15:04:47 +02002968 exit(0); /* parent must leave */
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002969 }
2970
William Lallemandcb11fd22017-06-01 17:38:52 +02002971 /* child must never use the atexit function */
2972 atexit_flag = 0;
2973
William Lallemandbc193052018-09-11 10:06:26 +02002974 /* close useless master sockets */
2975 if (global.mode & MODE_MWORKER) {
2976 struct mworker_proc *child, *it;
2977 master = 0;
2978
William Lallemand309dc9a2018-10-26 14:47:45 +02002979 mworker_cli_proxy_stop();
2980
William Lallemandbc193052018-09-11 10:06:26 +02002981 /* free proc struct of other processes */
2982 list_for_each_entry_safe(child, it, &proc_list, list) {
William Lallemandce83b4a2018-10-26 14:47:30 +02002983 /* close the FD of the master side for all
2984 * workers, we don't need to close the worker
2985 * side of other workers since it's done with
2986 * the bind_proc */
Tim Duesterhus742e0f92018-11-25 20:03:39 +01002987 if (child->ipc_fd[0] >= 0)
2988 close(child->ipc_fd[0]);
William Lallemandce83b4a2018-10-26 14:47:30 +02002989 if (child->relative_pid == relative_pid &&
2990 child->reloads == 0) {
2991 /* keep this struct if this is our pid */
2992 proc_self = child;
William Lallemandbc193052018-09-11 10:06:26 +02002993 continue;
William Lallemandce83b4a2018-10-26 14:47:30 +02002994 }
William Lallemandbc193052018-09-11 10:06:26 +02002995 LIST_DEL(&child->list);
2996 free(child);
2997 }
2998 }
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002999
William Lallemande1340412017-12-28 16:09:36 +01003000 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
3001 devnullfd = open("/dev/null", O_RDWR, 0);
3002 if (devnullfd < 0) {
3003 ha_alert("Cannot open /dev/null\n");
3004 exit(EXIT_FAILURE);
3005 }
3006 }
3007
William Lallemand095ba4c2017-06-01 17:38:50 +02003008 /* Must chroot and setgid/setuid in the children */
3009 /* chroot if needed */
3010 if (global.chroot != NULL) {
3011 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003012 ha_alert("[%s.main()] Cannot chroot1(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02003013 if (nb_oldpids)
3014 tell_old_pids(SIGTTIN);
3015 protocol_unbind_all();
3016 exit(1);
3017 }
3018 }
3019
3020 free(global.chroot);
3021 global.chroot = NULL;
3022
3023 /* setgid / setuid */
3024 if (global.gid) {
3025 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01003026 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
3027 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02003028
3029 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003030 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003031 protocol_unbind_all();
3032 exit(1);
3033 }
3034 }
3035
3036 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003037 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003038 protocol_unbind_all();
3039 exit(1);
3040 }
3041
William Lallemand7f80eb22017-05-26 18:19:55 +02003042 /* pass through every cli socket, and check if it's bound to
3043 * the current process and if it exposes listeners sockets.
3044 * Caution: the GTUNE_SOCKET_TRANSFER is now set after the fork.
3045 * */
3046
3047 if (global.stats_fe) {
3048 struct bind_conf *bind_conf;
3049
3050 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
3051 if (bind_conf->level & ACCESS_FD_LISTENERS) {
3052 if (!bind_conf->bind_proc || bind_conf->bind_proc & (1UL << proc)) {
3053 global.tune.options |= GTUNE_SOCKET_TRANSFER;
3054 break;
3055 }
3056 }
3057 }
3058 }
3059
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003060 /* we might have to unbind some proxies from some processes */
Olivier Houchardfbc74e82017-11-24 16:54:05 +01003061 px = proxies_list;
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003062 while (px != NULL) {
3063 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02003064 if (!(px->bind_proc & (1UL << proc))) {
3065 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
3066 zombify_proxy(px);
3067 else
3068 stop_proxy(px);
3069 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003070 }
3071 px = px->next;
3072 }
3073
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003074 /* we might have to unbind some peers sections from some processes */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02003075 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003076 if (!curpeers->peers_fe)
3077 continue;
3078
3079 if (curpeers->peers_fe->bind_proc & (1UL << proc))
3080 continue;
3081
3082 stop_proxy(curpeers->peers_fe);
3083 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02003084 signal_unregister_handler(curpeers->sighandler);
Olivier Houchard3f795f72019-04-17 22:51:06 +02003085 task_destroy(curpeers->sync_task);
Willy Tarreau47c8c022015-09-28 16:39:25 +02003086 curpeers->sync_task = NULL;
Olivier Houchard3f795f72019-04-17 22:51:06 +02003087 task_destroy(curpeers->peers_fe->task);
Willy Tarreau47c8c022015-09-28 16:39:25 +02003088 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003089 curpeers->peers_fe = NULL;
3090 }
3091
William Lallemand2e8fad92018-11-13 16:18:23 +01003092 /*
3093 * This is only done in daemon mode because we might want the
3094 * logs on stdout in mworker mode. If we're NOT in QUIET mode,
3095 * we should now close the 3 first FDs to ensure that we can
3096 * detach from the TTY. We MUST NOT do it in other cases since
3097 * it would have already be done, and 0-2 would have been
3098 * affected to listening sockets
Willy Tarreaubaaee002006-06-26 02:48:02 +02003099 */
William Lallemand2e8fad92018-11-13 16:18:23 +01003100 if ((global.mode & MODE_DAEMON) &&
3101 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02003102 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01003103 stdio_quiet(devnullfd);
Willy Tarreau106cb762008-11-16 07:40:34 +01003104 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003105 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
3106 }
3107 pid = getpid(); /* update child's pid */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003108 if (!(global.mode & MODE_MWORKER)) /* in mworker mode we don't want a new pgid for the children */
3109 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02003110 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02003111 }
3112
Christopher Faulete3a5e352017-10-24 13:53:54 +02003113 global.mode &= ~MODE_STARTING;
Willy Tarreau4f60f162007-04-08 16:39:58 +02003114 /*
3115 * That's it : the central polling loop. Run until we stop.
3116 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02003117#ifdef USE_THREAD
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003118 {
Christopher Faulet1d17c102017-08-29 15:38:48 +02003119 unsigned int *tids = calloc(global.nbthread, sizeof(unsigned int));
3120 pthread_t *threads = calloc(global.nbthread, sizeof(pthread_t));
3121 int i;
William Lallemand1aab50b2018-06-07 09:46:01 +02003122 sigset_t blocked_sig, old_sig;
Christopher Faulet1d17c102017-08-29 15:38:48 +02003123
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003124 /* Init tids array */
3125 for (i = 0; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003126 tids[i] = i;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003127
William Lallemand1aab50b2018-06-07 09:46:01 +02003128 /* ensure the signals will be blocked in every thread */
3129 sigfillset(&blocked_sig);
3130 sigdelset(&blocked_sig, SIGPROF);
3131 sigdelset(&blocked_sig, SIGBUS);
3132 sigdelset(&blocked_sig, SIGFPE);
3133 sigdelset(&blocked_sig, SIGILL);
3134 sigdelset(&blocked_sig, SIGSEGV);
3135 pthread_sigmask(SIG_SETMASK, &blocked_sig, &old_sig);
3136
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003137 /* Create nbthread-1 thread. The first thread is the current process */
3138 threads[0] = pthread_self();
3139 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003140 pthread_create(&threads[i], NULL, &run_thread_poll_loop, &tids[i]);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003141
Christopher Faulet62519022017-10-16 15:49:32 +02003142#ifdef USE_CPU_AFFINITY
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003143 /* Now the CPU affinity for all threads */
3144 for (i = 0; i < global.nbthread; i++) {
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003145 if (global.cpu_map.proc[relative_pid-1])
3146 global.cpu_map.thread[relative_pid-1][i] &= global.cpu_map.proc[relative_pid-1];
Christopher Faulet62519022017-10-16 15:49:32 +02003147
Willy Tarreau421f02e2018-01-20 18:19:22 +01003148 if (i < MAX_THREADS && /* only the first 32/64 threads may be pinned */
Olivier Houchard829aa242017-12-01 18:19:43 +01003149 global.cpu_map.thread[relative_pid-1][i]) {/* only do this if the thread has a THREAD map */
3150#if defined(__FreeBSD__) || defined(__NetBSD__)
3151 cpuset_t cpuset;
3152#else
3153 cpu_set_t cpuset;
3154#endif
3155 int j;
3156 unsigned long cpu_map = global.cpu_map.thread[relative_pid-1][i];
3157
3158 CPU_ZERO(&cpuset);
3159
3160 while ((j = ffsl(cpu_map)) > 0) {
3161 CPU_SET(j - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003162 cpu_map &= ~(1UL << (j - 1));
Olivier Houchard829aa242017-12-01 18:19:43 +01003163 }
Christopher Faulet62519022017-10-16 15:49:32 +02003164 pthread_setaffinity_np(threads[i],
Olivier Houchard829aa242017-12-01 18:19:43 +01003165 sizeof(cpuset), &cpuset);
3166 }
Christopher Faulet1d17c102017-08-29 15:38:48 +02003167 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003168#endif /* !USE_CPU_AFFINITY */
3169
William Lallemand1aab50b2018-06-07 09:46:01 +02003170 /* when multithreading we need to let only the thread 0 handle the signals */
William Lallemandd3801c12018-09-11 10:06:23 +02003171 haproxy_unblock_signals();
William Lallemand1aab50b2018-06-07 09:46:01 +02003172
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003173 /* Finally, start the poll loop for the first thread */
3174 run_thread_poll_loop(&tids[0]);
3175
3176 /* Wait the end of other threads */
3177 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003178 pthread_join(threads[i], NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003179
Christopher Faulet1d17c102017-08-29 15:38:48 +02003180 free(tids);
3181 free(threads);
3182
Christopher Fauletb79a94c2017-05-30 15:34:30 +02003183#if defined(DEBUG_THREAD) || defined(DEBUG_FULL)
3184 show_lock_stats();
3185#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003186 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003187#else /* ! USE_THREAD */
William Lallemandd3801c12018-09-11 10:06:23 +02003188 haproxy_unblock_signals();
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003189 run_thread_poll_loop((int []){0});
Christopher Faulet62519022017-10-16 15:49:32 +02003190
Christopher Faulet62519022017-10-16 15:49:32 +02003191#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003192
3193 /* Do some cleanup */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003194 deinit();
Christopher Faulet1d17c102017-08-29 15:38:48 +02003195
Willy Tarreaubaaee002006-06-26 02:48:02 +02003196 exit(0);
3197}
3198
3199
3200/*
3201 * Local variables:
3202 * c-indent-level: 8
3203 * c-basic-offset: 8
3204 * End:
3205 */