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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>
Rob Allen56996da2019-05-03 09:11:32 +0100130#include <openssl/rand.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200131#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200132
Willy Tarreau7b5654f2019-03-29 21:30:17 +0100133/* array of init calls for older platforms */
134DECLARE_INIT_STAGES;
135
Willy Tarreau477ecd82010-01-03 21:12:30 +0100136/* list of config files */
137static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200138int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100139int relative_pid = 1; /* process id starting at 1 */
Willy Tarreau387bd4f2017-11-10 19:08:14 +0100140unsigned long pid_bit = 1; /* bit corresponding to the process id */
Willy Tarreaua38a7172019-02-02 17:11:28 +0100141unsigned long all_proc_mask = 1; /* mask of all processes */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200142
Willy Tarreauc40efc12019-05-03 09:22:44 +0200143__decl_hathreads(pthread_t *threads = NULL);
144
Olivier Houchard79321b92018-07-26 17:55:11 +0200145volatile unsigned long sleeping_thread_mask; /* Threads that are about to sleep in poll() */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200146/* global options */
147struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100148 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100149 .nbproc = 1,
Willy Tarreau149ab772019-01-26 14:27:06 +0100150 .nbthread = 0,
William Lallemand5f232402012-04-05 18:02:55 +0200151 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200152 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100153 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100154 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100155 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200156 .unix_bind = {
157 .ux = {
158 .uid = -1,
159 .gid = -1,
160 .mode = 0,
161 }
162 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200163 .tune = {
Willy Tarreau7ac908b2019-02-27 12:02:18 +0100164 .options = GTUNE_LISTENER_MQ,
Willy Tarreauc77d3642018-12-12 06:19:42 +0100165 .bufsize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Willy Tarreau27097842015-09-28 13:53:23 +0200166 .maxrewrite = -1,
Willy Tarreauc77d3642018-12-12 06:19:42 +0100167 .chksize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Willy Tarreaua24adf02014-11-27 01:11:56 +0100168 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200169 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Olivier Houchard88698d92019-04-16 19:07:22 +0200170 .pool_low_ratio = 20,
171 .pool_high_ratio = 25,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200172#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100173 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200174#endif
William Lallemandf3747832012-11-09 12:33:10 +0100175 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100176#ifdef DEFAULT_IDLE_TIMER
177 .idle_timer = DEFAULT_IDLE_TIMER,
178#else
179 .idle_timer = 1000, /* 1 second */
180#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200181 },
Emeric Brun76d88952012-10-05 15:47:31 +0200182#ifdef USE_OPENSSL
183#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200184 .maxsslconn = DEFAULT_MAXSSLCONN,
185#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200186#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200187 /* others NULL OK */
188};
189
190/*********************************************************************/
191
192int stopping; /* non zero means stopping in progress */
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100193int killed; /* non zero means a hard-stop is triggered */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200194int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
William Lallemanda7199262018-11-16 16:57:20 +0100195int unstoppable_jobs = 0; /* number of active jobs that can't be stopped during a soft stop */
Willy Tarreau199ad242018-11-05 16:31:22 +0100196int active_peers = 0; /* number of active peers (connection attempts and connected) */
Willy Tarreau2d372c22018-11-05 17:12:27 +0100197int connected_peers = 0; /* number of connected peers (verified ones) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200198
199/* Here we store informations about the pids of the processes we may pause
200 * or kill. We will send them a signal every 10 ms until we can bind to all
201 * our ports. With 200 retries, that's about 2 seconds.
202 */
203#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200204static int *oldpids = NULL;
205static int oldpids_sig; /* use USR1 or TERM */
206
Olivier Houchardf73629d2017-04-05 22:33:04 +0200207/* Path to the unix socket we use to retrieve listener sockets from the old process */
208static const char *old_unixsocket;
209
William Lallemand85b0bd92017-06-01 17:38:53 +0200210static char *cur_unixsocket = NULL;
211
William Lallemandcb11fd22017-06-01 17:38:52 +0200212int atexit_flag = 0;
213
Willy Tarreaubb545b42010-08-25 12:58:59 +0200214int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200215const int zero = 0;
216const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200217const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200218
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100219char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200220char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200221
Willy Tarreau89efaed2013-12-13 15:14:55 +0100222/* used from everywhere just to drain results we don't want to read and which
223 * recent versions of gcc increasingly and annoyingly complain about.
224 */
225int shut_your_big_mouth_gcc_int = 0;
226
William Lallemand73b85e72017-06-01 17:38:51 +0200227static char **next_argv = NULL;
228
William Lallemandbc193052018-09-11 10:06:26 +0200229struct list proc_list = LIST_HEAD_INIT(proc_list);
230
231int master = 0; /* 1 if in master, 0 if in child */
Willy Tarreaubf696402019-03-01 10:09:28 +0100232unsigned int rlim_fd_cur_at_boot = 0;
233unsigned int rlim_fd_max_at_boot = 0;
William Lallemandbc193052018-09-11 10:06:26 +0200234
William Lallemand16dd1b32018-11-19 18:46:18 +0100235struct mworker_proc *proc_self = NULL;
William Lallemandbc193052018-09-11 10:06:26 +0200236
Willy Tarreau08ceb102011-07-24 22:58:00 +0200237/* list of the temporarily limited listeners because of lack of resource */
238struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200239struct task *global_listener_queue_task;
Olivier Houchard9f6af332018-05-25 14:04:04 +0200240static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200241
William Lallemandb3f2be32018-09-11 10:06:18 +0200242static void *run_thread_poll_loop(void *data);
243
Willy Tarreauff055502014-04-28 22:27:06 +0200244/* bitfield of a few warnings to emit just once (WARN_*) */
245unsigned int warned = 0;
246
William Lallemande7361152018-10-26 14:47:36 +0200247/* master CLI configuration (-S flag) */
248struct list mworker_cli_conf = LIST_HEAD_INIT(mworker_cli_conf);
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100249
250/* These are strings to be reported in the output of "haproxy -vv". They may
251 * either be constants (in which case must_free must be zero) or dynamically
252 * allocated strings to pass to free() on exit, and in this case must_free
253 * must be non-zero.
254 */
255struct list build_opts_list = LIST_HEAD_INIT(build_opts_list);
256struct build_opts_str {
257 struct list list;
258 const char *str;
259 int must_free;
260};
261
Willy Tarreaue6945732016-12-21 19:57:00 +0100262/* These functions are called just after the point where the program exits
263 * after a config validity check, so they are generally suited for resource
264 * allocation and slow initializations that should be skipped during basic
265 * config checks. The functions must return 0 on success, or a combination
266 * of ERR_* flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause
267 * and immediate exit, so the function must have emitted any useful error.
268 */
269struct list post_check_list = LIST_HEAD_INIT(post_check_list);
270struct post_check_fct {
271 struct list list;
272 int (*fct)();
273};
274
Willy Tarreau05554e62016-12-21 20:46:26 +0100275/* These functions are called when freeing the global sections at the end
276 * of deinit, after everything is stopped. They don't return anything, and
277 * they work in best effort mode as their sole goal is to make valgrind
278 * mostly happy.
279 */
280struct list post_deinit_list = LIST_HEAD_INIT(post_deinit_list);
281struct post_deinit_fct {
282 struct list list;
283 void (*fct)();
284};
285
Christopher Faulet415f6112017-07-25 16:52:58 +0200286/* These functions are called for each thread just after the thread creation
287 * and before running the scheduler. They should be used to do per-thread
288 * initializations. They must return 0 if an error occurred. */
289struct list per_thread_init_list = LIST_HEAD_INIT(per_thread_init_list);
290struct per_thread_init_fct {
291 struct list list;
292 int (*fct)();
293};
294
295/* These functions are called for each thread just after the scheduler loop and
296 * before exiting the thread. They don't return anything and, as for post-deinit
297 * functions, they work in best effort mode as their sole goal is to make
298 * valgrind mostly happy. */
299struct list per_thread_deinit_list = LIST_HEAD_INIT(per_thread_deinit_list);
300struct per_thread_deinit_fct {
301 struct list list;
302 void (*fct)();
303};
304
Willy Tarreaubaaee002006-06-26 02:48:02 +0200305/*********************************************************************/
306/* general purpose functions ***************************************/
307/*********************************************************************/
308
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100309/* used to register some build option strings at boot. Set must_free to
310 * non-zero if the string must be freed upon exit.
311 */
312void hap_register_build_opts(const char *str, int must_free)
313{
314 struct build_opts_str *b;
315
316 b = calloc(1, sizeof(*b));
317 if (!b) {
318 fprintf(stderr, "out of memory\n");
319 exit(1);
320 }
321 b->str = str;
322 b->must_free = must_free;
323 LIST_ADDQ(&build_opts_list, &b->list);
324}
325
Willy Tarreaue6945732016-12-21 19:57:00 +0100326/* used to register some initialization functions to call after the checks. */
327void hap_register_post_check(int (*fct)())
328{
329 struct post_check_fct *b;
330
331 b = calloc(1, sizeof(*b));
332 if (!b) {
333 fprintf(stderr, "out of memory\n");
334 exit(1);
335 }
336 b->fct = fct;
337 LIST_ADDQ(&post_check_list, &b->list);
338}
339
Willy Tarreau05554e62016-12-21 20:46:26 +0100340/* used to register some de-initialization functions to call after everything
341 * has stopped.
342 */
343void hap_register_post_deinit(void (*fct)())
344{
345 struct post_deinit_fct *b;
346
347 b = calloc(1, sizeof(*b));
348 if (!b) {
349 fprintf(stderr, "out of memory\n");
350 exit(1);
351 }
352 b->fct = fct;
353 LIST_ADDQ(&post_deinit_list, &b->list);
354}
355
Christopher Faulet415f6112017-07-25 16:52:58 +0200356/* used to register some initialization functions to call for each thread. */
357void hap_register_per_thread_init(int (*fct)())
358{
359 struct per_thread_init_fct *b;
360
361 b = calloc(1, sizeof(*b));
362 if (!b) {
363 fprintf(stderr, "out of memory\n");
364 exit(1);
365 }
366 b->fct = fct;
367 LIST_ADDQ(&per_thread_init_list, &b->list);
368}
369
370/* used to register some de-initialization functions to call for each thread. */
371void hap_register_per_thread_deinit(void (*fct)())
372{
373 struct per_thread_deinit_fct *b;
374
375 b = calloc(1, sizeof(*b));
376 if (!b) {
377 fprintf(stderr, "out of memory\n");
378 exit(1);
379 }
380 b->fct = fct;
381 LIST_ADDQ(&per_thread_deinit_list, &b->list);
382}
383
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100384static void display_version()
Willy Tarreaubaaee002006-06-26 02:48:02 +0200385{
Willy Tarreau909b9d82019-01-04 18:20:32 +0100386 printf("HA-Proxy version %s %s - https://haproxy.org/\n", haproxy_version, haproxy_date);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200387}
388
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100389static void display_build_opts()
Willy Tarreau7b066db2007-12-02 11:28:59 +0100390{
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100391 struct build_opts_str *item;
392
Willy Tarreau7b066db2007-12-02 11:28:59 +0100393 printf("Build options :"
394#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100395 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100396#endif
397#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100398 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100399#endif
400#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100401 "\n CC = " BUILD_CC
402#endif
403#ifdef BUILD_CFLAGS
404 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100405#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100406#ifdef BUILD_OPTIONS
407 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100408#endif
Willy Tarreau7728ed32019-03-27 13:20:08 +0100409#ifdef BUILD_FEATURES
410 "\n\nFeature list : " BUILD_FEATURES
411#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200412 "\n\nDefault settings :"
Willy Tarreauca783d42019-03-13 10:03:07 +0100413 "\n bufsize = %d, maxrewrite = %d, maxpollevents = %d"
Willy Tarreau27a674e2009-08-17 07:23:33 +0200414 "\n\n",
Willy Tarreauca783d42019-03-13 10:03:07 +0100415 BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200416
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100417 list_for_each_entry(item, &build_opts_list, list) {
418 puts(item->str);
419 }
420
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100421 putchar('\n');
422
Willy Tarreaube5b6852009-10-03 18:57:08 +0200423 list_pollers(stdout);
424 putchar('\n');
Christopher Faulet98d9fe22018-04-10 14:37:32 +0200425 list_mux_proto(stdout);
426 putchar('\n');
Willy Tarreau679bba12019-03-19 08:08:10 +0100427 list_services(stdout);
428 putchar('\n');
Christopher Fauletb3f4e142016-03-07 12:46:38 +0100429 list_filters(stdout);
430 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100431}
432
Willy Tarreaubaaee002006-06-26 02:48:02 +0200433/*
434 * This function prints the command line usage and exits
435 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100436static void usage(char *name)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200437{
438 display_version();
439 fprintf(stderr,
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200440 "Usage : %s [-f <cfgfile|cfgdir>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200441 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200442 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100443 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200444 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200445 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200446 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200447 " -D goes daemon ; -C changes to <dir> before loading files.\n"
William Lallemand095ba4c2017-06-01 17:38:50 +0200448 " -W master-worker mode.\n"
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100449#if defined(USE_SYSTEMD)
450 " -Ws master-worker mode with systemd notify support.\n"
451#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200452 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200453 " -c check mode : only check config files and exit\n"
Willy Tarreauca783d42019-03-13 10:03:07 +0100454 " -n sets the maximum total # of connections (uses ulimit -n)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200455 " -m limits the usable amount of memory (in MB)\n"
456 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200457 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200458 " -p writes pids of all children to this file\n"
459#if defined(ENABLE_EPOLL)
460 " -de disables epoll() usage even when available\n"
461#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200462#if defined(ENABLE_KQUEUE)
463 " -dk disables kqueue() usage even when available\n"
464#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200465#if defined(ENABLE_POLL)
466 " -dp disables poll() usage even when available\n"
467#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200468#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100469 " -dS disables splice usage (broken on old kernels)\n"
470#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200471#if defined(USE_GETADDRINFO)
472 " -dG disables getaddrinfo() usage\n"
473#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000474#if defined(SO_REUSEPORT)
475 " -dR disables SO_REUSEPORT usage\n"
476#endif
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100477 " -dr ignores server address resolution failures\n"
Emeric Brun850efd52014-01-29 12:24:34 +0100478 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200479 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Olivier Houchardf73629d2017-04-05 22:33:04 +0200480 " -x <unix_socket> get listening sockets from a unix socket\n"
William Lallemande7361152018-10-26 14:47:36 +0200481 " -S <unix_socket>[,<bind options>...] new stats socket for the master\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200482 "\n",
Willy Tarreauca783d42019-03-13 10:03:07 +0100483 name, cfg_maxpconn);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200484 exit(1);
485}
486
487
488
489/*********************************************************************/
490/* more specific functions ***************************************/
491/*********************************************************************/
492
William Lallemand73b85e72017-06-01 17:38:51 +0200493/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
494 * pids the signal was correctly delivered to.
495 */
William Lallemande25473c2019-04-01 11:29:56 +0200496int tell_old_pids(int sig)
William Lallemand73b85e72017-06-01 17:38:51 +0200497{
498 int p;
499 int ret = 0;
500 for (p = 0; p < nb_oldpids; p++)
501 if (kill(oldpids[p], sig) == 0)
502 ret++;
503 return ret;
504}
505
William Lallemand75ea0a02017-11-15 19:02:58 +0100506/*
William Lallemand73b85e72017-06-01 17:38:51 +0200507 * remove a pid forom the olpid array and decrease nb_oldpids
508 * return 1 pid was found otherwise return 0
509 */
510
511int delete_oldpid(int pid)
512{
513 int i;
514
515 for (i = 0; i < nb_oldpids; i++) {
516 if (oldpids[i] == pid) {
517 oldpids[i] = oldpids[nb_oldpids - 1];
518 oldpids[nb_oldpids - 1] = 0;
519 nb_oldpids--;
520 return 1;
521 }
522 }
523 return 0;
524}
525
William Lallemand85b0bd92017-06-01 17:38:53 +0200526
527static void get_cur_unixsocket()
528{
529 /* if -x was used, try to update the stat socket if not available anymore */
530 if (global.stats_fe) {
531 struct bind_conf *bind_conf;
532
533 /* pass through all stats socket */
534 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
535 struct listener *l;
536
537 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
538
539 if (l->addr.ss_family == AF_UNIX &&
540 (bind_conf->level & ACCESS_FD_LISTENERS)) {
541 const struct sockaddr_un *un;
542
543 un = (struct sockaddr_un *)&l->addr;
544 /* priority to old_unixsocket */
545 if (!cur_unixsocket) {
546 cur_unixsocket = strdup(un->sun_path);
547 } else {
548 if (old_unixsocket && !strcmp(un->sun_path, old_unixsocket)) {
549 free(cur_unixsocket);
550 cur_unixsocket = strdup(old_unixsocket);
551 return;
552 }
553 }
554 }
555 }
556 }
557 }
558 if (!cur_unixsocket && old_unixsocket)
559 cur_unixsocket = strdup(old_unixsocket);
560}
561
William Lallemand73b85e72017-06-01 17:38:51 +0200562/*
563 * When called, this function reexec haproxy with -sf followed by current
Joseph Herlant03420902018-11-15 10:41:50 -0800564 * children PIDs and possibly old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200565 */
William Lallemanda57b7e32018-12-14 21:11:31 +0100566void mworker_reload()
William Lallemand73b85e72017-06-01 17:38:51 +0200567{
568 int next_argc = 0;
William Lallemand73b85e72017-06-01 17:38:51 +0200569 char *msg = NULL;
Willy Tarreau8dca1952019-03-01 10:21:55 +0100570 struct rlimit limit;
William Lallemand7c756a82018-11-26 11:53:40 +0100571 struct per_thread_deinit_fct *ptdf;
William Lallemand73b85e72017-06-01 17:38:51 +0200572
573 mworker_block_signals();
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100574#if defined(USE_SYSTEMD)
575 if (global.tune.options & GTUNE_USE_SYSTEMD)
576 sd_notify(0, "RELOADING=1");
577#endif
William Lallemand73b85e72017-06-01 17:38:51 +0200578 setenv("HAPROXY_MWORKER_REEXEC", "1", 1);
579
William Lallemandbc193052018-09-11 10:06:26 +0200580 mworker_proc_list_to_env(); /* put the children description in the env */
581
William Lallemand7c756a82018-11-26 11:53:40 +0100582 /* during the reload we must ensure that every FDs that can't be
583 * reuse (ie those that are not referenced in the proc_list)
584 * are closed or they will leak. */
585
586 /* close the listeners FD */
587 mworker_cli_proxy_stop();
588 /* close the poller FD and the thread waker pipe FD */
589 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
590 ptdf->fct();
591 if (fdtab)
592 deinit_pollers();
Willy Tarreau5db847a2019-05-09 14:13:35 +0200593#if defined(USE_OPENSSL) && (HA_OPENSSL_VERSION_NUMBER >= 0x10101000L)
Rob Allen56996da2019-05-03 09:11:32 +0100594 if (global.ssl_used_frontend || global.ssl_used_backend)
595 /* close random device FDs */
596 RAND_keep_random_devices_open(0);
597#endif
William Lallemand7c756a82018-11-26 11:53:40 +0100598
Willy Tarreau8dca1952019-03-01 10:21:55 +0100599 /* restore the initial FD limits */
600 limit.rlim_cur = rlim_fd_cur_at_boot;
601 limit.rlim_max = rlim_fd_max_at_boot;
602 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
603 getrlimit(RLIMIT_NOFILE, &limit);
604 ha_warning("Failed to restore initial FD limits (cur=%u max=%u), using cur=%u max=%u\n",
605 rlim_fd_cur_at_boot, rlim_fd_max_at_boot,
606 (unsigned int)limit.rlim_cur, (unsigned int)limit.rlim_max);
607 }
608
William Lallemand73b85e72017-06-01 17:38:51 +0200609 /* compute length */
610 while (next_argv[next_argc])
611 next_argc++;
612
William Lallemand85b0bd92017-06-01 17:38:53 +0200613 /* 1 for haproxy -sf, 2 for -x /socket */
William Lallemand3f128872019-04-01 11:29:59 +0200614 next_argv = realloc(next_argv, (next_argc + 1 + 2 + mworker_child_nb() + nb_oldpids + 1) * sizeof(char *));
William Lallemand73b85e72017-06-01 17:38:51 +0200615 if (next_argv == NULL)
616 goto alloc_error;
617
William Lallemand73b85e72017-06-01 17:38:51 +0200618 /* add -sf <PID>* to argv */
William Lallemand3f128872019-04-01 11:29:59 +0200619 if (mworker_child_nb() > 0) {
620 struct mworker_proc *child;
621
William Lallemand73b85e72017-06-01 17:38:51 +0200622 next_argv[next_argc++] = "-sf";
William Lallemand3f128872019-04-01 11:29:59 +0200623
624 list_for_each_entry(child, &proc_list, list) {
William Lallemand8f7069a2019-04-12 16:09:23 +0200625 if (!(child->options & (PROC_O_TYPE_WORKER|PROC_O_TYPE_PROG)))
William Lallemand3f128872019-04-01 11:29:59 +0200626 continue;
627 next_argv[next_argc] = memprintf(&msg, "%d", child->pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200628 if (next_argv[next_argc] == NULL)
629 goto alloc_error;
630 msg = NULL;
William Lallemand3f128872019-04-01 11:29:59 +0200631 next_argc++;
William Lallemand73b85e72017-06-01 17:38:51 +0200632 }
633 }
William Lallemand3f128872019-04-01 11:29:59 +0200634
William Lallemand73b85e72017-06-01 17:38:51 +0200635 next_argv[next_argc] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200636
William Lallemand2bf6d622017-06-20 11:20:23 +0200637 /* add the -x option with the stat socket */
William Lallemand85b0bd92017-06-01 17:38:53 +0200638 if (cur_unixsocket) {
639
William Lallemand2bf6d622017-06-20 11:20:23 +0200640 next_argv[next_argc++] = "-x";
641 next_argv[next_argc++] = (char *)cur_unixsocket;
642 next_argv[next_argc++] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200643 }
644
Christopher Faulet767a84b2017-11-24 16:50:31 +0100645 ha_warning("Reexecuting Master process\n");
Tim Duesterhus0436ab72017-11-12 17:39:18 +0100646 execvp(next_argv[0], next_argv);
William Lallemand73b85e72017-06-01 17:38:51 +0200647
Christopher Faulet767a84b2017-11-24 16:50:31 +0100648 ha_warning("Failed to reexecute the master process [%d]: %s\n", pid, strerror(errno));
William Lallemand722d4ca2017-11-15 19:02:55 +0100649 return;
650
William Lallemand73b85e72017-06-01 17:38:51 +0200651alloc_error:
Joseph Herlant07a08342018-11-15 10:43:05 -0800652 ha_warning("Failed to reexecute the master process [%d]: Cannot allocate memory\n", pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200653 return;
654}
655
William Lallemandb3f2be32018-09-11 10:06:18 +0200656static void mworker_loop()
657{
658
659#if defined(USE_SYSTEMD)
660 if (global.tune.options & GTUNE_USE_SYSTEMD)
661 sd_notifyf(0, "READY=1\nMAINPID=%lu", (unsigned long)getpid());
662#endif
Willy Tarreaud83b6c12019-04-18 11:31:36 +0200663 /* Busy polling makes no sense in the master :-) */
664 global.tune.options &= ~GTUNE_BUSY_POLLING;
William Lallemandb3f2be32018-09-11 10:06:18 +0200665
William Lallemandbc193052018-09-11 10:06:26 +0200666 master = 1;
667
William Lallemand0564d412018-11-20 17:36:53 +0100668 signal_unregister(SIGUSR1);
669 signal_unregister(SIGHUP);
670 signal_unregister(SIGQUIT);
671
William Lallemandb3f2be32018-09-11 10:06:18 +0200672 signal_register_fct(SIGTERM, mworker_catch_sigterm, SIGTERM);
673 signal_register_fct(SIGUSR1, mworker_catch_sigterm, SIGUSR1);
674 signal_register_fct(SIGINT, mworker_catch_sigterm, SIGINT);
675 signal_register_fct(SIGHUP, mworker_catch_sighup, SIGHUP);
676 signal_register_fct(SIGUSR2, mworker_catch_sighup, SIGUSR2);
677 signal_register_fct(SIGCHLD, mworker_catch_sigchld, SIGCHLD);
678
679 mworker_unblock_signals();
680 mworker_cleanlisteners();
William Lallemand27f3fa52018-12-06 14:05:20 +0100681 mworker_cleantasks();
William Lallemandb3f2be32018-09-11 10:06:18 +0200682
William Lallemandbc193052018-09-11 10:06:26 +0200683 mworker_catch_sigchld(NULL); /* ensure we clean the children in case
684 some SIGCHLD were lost */
685
William Lallemandb3f2be32018-09-11 10:06:18 +0200686 global.nbthread = 1;
687 relative_pid = 1;
688 pid_bit = 1;
Willy Tarreaua38a7172019-02-02 17:11:28 +0100689 all_proc_mask = 1;
William Lallemandb3f2be32018-09-11 10:06:18 +0200690
William Lallemand2672eb92018-12-14 15:52:39 +0100691#ifdef USE_THREAD
692 tid_bit = 1;
693 all_threads_mask = 1;
694#endif
695
William Lallemandb3f2be32018-09-11 10:06:18 +0200696 jobs++; /* this is the "master" job, we want to take care of the
697 signals even if there is no listener so the poll loop don't
698 leave */
699
700 fork_poller();
Willy Tarreaub4f7cc32019-05-03 09:27:30 +0200701 run_thread_poll_loop(0);
William Lallemandb3f2be32018-09-11 10:06:18 +0200702}
William Lallemandcb11fd22017-06-01 17:38:52 +0200703
704/*
705 * Reexec the process in failure mode, instead of exiting
706 */
707void reexec_on_failure()
708{
709 if (!atexit_flag)
710 return;
711
712 setenv("HAPROXY_MWORKER_WAIT_ONLY", "1", 1);
713
Christopher Faulet767a84b2017-11-24 16:50:31 +0100714 ha_warning("Reexecuting Master process in waitpid mode\n");
William Lallemandcb11fd22017-06-01 17:38:52 +0200715 mworker_reload();
William Lallemandcb11fd22017-06-01 17:38:52 +0200716}
William Lallemand73b85e72017-06-01 17:38:51 +0200717
718
719/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200720 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
721 * a signal zero to all subscribers. This means that it's as easy as
722 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200723 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100724static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200725{
726 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200727 signal_unregister_handler(sh);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100728 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200729}
730
731/*
732 * upon SIGTTOU, we pause everything
733 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100734static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200735{
736 pause_proxies();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100737 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200738}
739
740/*
741 * upon SIGTTIN, let's have a soft stop.
742 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100743static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200744{
Willy Tarreaube58c382011-07-24 18:28:10 +0200745 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200746}
747
748/*
749 * this function dumps every server's state when the process receives SIGHUP.
750 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100751static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200752{
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100753 struct proxy *p = proxies_list;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200754
Christopher Faulet767a84b2017-11-24 16:50:31 +0100755 ha_warning("SIGHUP received, dumping servers states.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200756 while (p) {
757 struct server *s = p->srv;
758
759 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
760 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100761 chunk_printf(&trash,
762 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
763 p->id, s->id,
Emeric Brun52a91d32017-08-31 14:41:55 +0200764 (s->cur_state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100765 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200766 ha_warning("%s\n", trash.area);
767 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200768 s = s->next;
769 }
770
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200771 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
772 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100773 chunk_printf(&trash,
774 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
775 p->id,
776 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 +0200777 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100778 chunk_printf(&trash,
779 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
780 p->id,
781 (p->srv_bck) ? "is running on backup servers" : "has no server available",
782 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 +0200783 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100784 chunk_printf(&trash,
785 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
786 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
787 p->id, p->srv_act, p->srv_bck,
788 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 +0200789 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200790 ha_warning("%s\n", trash.area);
791 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200792
793 p = p->next;
794 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200795}
796
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100797static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200798{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200799 /* dump memory usage then free everything possible */
800 dump_pools();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100801 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200802}
803
William Lallemande1340412017-12-28 16:09:36 +0100804/*
805 * This function dup2 the stdio FDs (0,1,2) with <fd>, then closes <fd>
806 * If <fd> < 0, it opens /dev/null and use it to dup
807 *
808 * In the case of chrooting, you have to open /dev/null before the chroot, and
809 * pass the <fd> to this function
810 */
811static void stdio_quiet(int fd)
812{
813 if (fd < 0)
814 fd = open("/dev/null", O_RDWR, 0);
815
816 if (fd > -1) {
817 fclose(stdin);
818 fclose(stdout);
819 fclose(stderr);
820
821 dup2(fd, 0);
822 dup2(fd, 1);
823 dup2(fd, 2);
824 if (fd > 2)
825 close(fd);
826 return;
827 }
828
829 ha_alert("Cannot open /dev/null\n");
830 exit(EXIT_FAILURE);
831}
832
833
Joseph Herlant03420902018-11-15 10:41:50 -0800834/* This function checks if cfg_cfgfiles contains directories.
835 * If it finds one, it adds all the files (and only files) it contains
836 * in cfg_cfgfiles in place of the directory (and removes the directory).
837 * It adds the files in lexical order.
838 * It adds only files with .cfg extension.
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200839 * It doesn't add files with name starting with '.'
840 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100841static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200842{
843 struct wordlist *wl, *wlb;
844 char *err = NULL;
845
846 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
847 struct stat file_stat;
848 struct dirent **dir_entries = NULL;
849 int dir_entries_nb;
850 int dir_entries_it;
851
852 if (stat(wl->s, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100853 ha_alert("Cannot open configuration file/directory %s : %s\n",
854 wl->s,
855 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200856 exit(1);
857 }
858
859 if (!S_ISDIR(file_stat.st_mode))
860 continue;
861
862 /* from this point wl->s is a directory */
863
864 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
865 if (dir_entries_nb < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100866 ha_alert("Cannot open configuration directory %s : %s\n",
867 wl->s,
868 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200869 exit(1);
870 }
871
872 /* for each element in the directory wl->s */
873 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
874 struct dirent *dir_entry = dir_entries[dir_entries_it];
875 char *filename = NULL;
876 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
877
878 /* don't add filename that begin with .
Joseph Herlant03420902018-11-15 10:41:50 -0800879 * only add filename with .cfg extension
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200880 */
881 if (dir_entry->d_name[0] == '.' ||
882 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
883 goto next_dir_entry;
884
885 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100886 ha_alert("Cannot load configuration files %s : out of memory.\n",
887 filename);
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200888 exit(1);
889 }
890
891 if (stat(filename, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100892 ha_alert("Cannot open configuration file %s : %s\n",
893 wl->s,
894 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200895 exit(1);
896 }
897
898 /* don't add anything else than regular file in cfg_cfgfiles
899 * this way we avoid loops
900 */
901 if (!S_ISREG(file_stat.st_mode))
902 goto next_dir_entry;
903
904 if (!list_append_word(&wl->list, filename, &err)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100905 ha_alert("Cannot load configuration files %s : %s\n",
906 filename,
907 err);
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200908 exit(1);
909 }
910
911next_dir_entry:
912 free(filename);
913 free(dir_entry);
914 }
915
916 free(dir_entries);
917
918 /* remove the current directory (wl) from cfg_cfgfiles */
919 free(wl->s);
920 LIST_DEL(&wl->list);
921 free(wl);
922 }
923
924 free(err);
925}
926
Olivier Houchardf73629d2017-04-05 22:33:04 +0200927static int get_old_sockets(const char *unixsocket)
928{
929 char *cmsgbuf = NULL, *tmpbuf = NULL;
930 int *tmpfd = NULL;
931 struct sockaddr_un addr;
932 struct cmsghdr *cmsg;
933 struct msghdr msghdr;
934 struct iovec iov;
935 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +0200936 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +0200937 int sock = -1;
938 int ret = -1;
939 int ret2 = -1;
940 int fd_nb;
941 int got_fd = 0;
942 int i = 0;
943 size_t maxoff = 0, curoff = 0;
944
945 memset(&msghdr, 0, sizeof(msghdr));
946 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
947 if (!cmsgbuf) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100948 ha_warning("Failed to allocate memory to send sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +0200949 goto out;
950 }
951 sock = socket(PF_UNIX, SOCK_STREAM, 0);
952 if (sock < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100953 ha_warning("Failed to connect to the old process socket '%s'\n",
954 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +0200955 goto out;
956 }
957 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path));
958 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
959 addr.sun_family = PF_UNIX;
960 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
961 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100962 ha_warning("Failed to connect to the old process socket '%s'\n",
963 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +0200964 goto out;
965 }
Olivier Houchard54740872017-04-06 14:45:14 +0200966 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +0200967 iov.iov_base = &fd_nb;
968 iov.iov_len = sizeof(fd_nb);
969 msghdr.msg_iov = &iov;
970 msghdr.msg_iovlen = 1;
971 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
972 /* First, get the number of file descriptors to be received */
973 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100974 ha_warning("Failed to get the number of sockets to be transferred !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +0200975 goto out;
976 }
977 if (fd_nb == 0) {
978 ret = 0;
979 goto out;
980 }
Olivier Houchardf143b802017-11-04 15:13:01 +0100981 tmpbuf = malloc(fd_nb * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int)));
Olivier Houchardf73629d2017-04-05 22:33:04 +0200982 if (tmpbuf == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100983 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +0200984 goto out;
985 }
986 tmpfd = malloc(fd_nb * sizeof(int));
987 if (tmpfd == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100988 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +0200989 goto out;
990 }
991 msghdr.msg_control = cmsgbuf;
992 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
Olivier Houchardf143b802017-11-04 15:13:01 +0100993 iov.iov_len = MAX_SEND_FD * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int));
Olivier Houchardf73629d2017-04-05 22:33:04 +0200994 do {
995 int ret3;
996
997 iov.iov_base = tmpbuf + curoff;
998 ret = recvmsg(sock, &msghdr, 0);
999 if (ret == -1 && errno == EINTR)
1000 continue;
1001 if (ret <= 0)
1002 break;
1003 /* Send an ack to let the sender know we got the sockets
1004 * and it can send some more
1005 */
1006 do {
1007 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
1008 } while (ret3 == -1 && errno == EINTR);
1009 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
1010 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
1011 if (cmsg->cmsg_level == SOL_SOCKET &&
1012 cmsg->cmsg_type == SCM_RIGHTS) {
1013 size_t totlen = cmsg->cmsg_len -
1014 CMSG_LEN(0);
1015 if (totlen / sizeof(int) + got_fd > fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001016 ha_warning("Got to many sockets !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001017 goto out;
1018 }
1019 /*
1020 * Be paranoid and use memcpy() to avoid any
1021 * potential alignement issue.
1022 */
1023 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
1024 got_fd += totlen / sizeof(int);
1025 }
1026 }
1027 curoff += ret;
1028 } while (got_fd < fd_nb);
1029
1030 if (got_fd != fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001031 ha_warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
1032 fd_nb, got_fd);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001033 goto out;
1034 }
1035 maxoff = curoff;
1036 curoff = 0;
1037 for (i = 0; i < got_fd; i++) {
1038 int fd = tmpfd[i];
1039 socklen_t socklen;
1040 int len;
1041
1042 xfer_sock = calloc(1, sizeof(*xfer_sock));
1043 if (!xfer_sock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001044 ha_warning("Failed to allocate memory in get_old_sockets() !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001045 break;
1046 }
1047 xfer_sock->fd = -1;
1048
1049 socklen = sizeof(xfer_sock->addr);
1050 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001051 ha_warning("Failed to get socket address\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001052 free(xfer_sock);
Olivier Houchardbe7b1ce2017-07-17 17:25:33 +02001053 xfer_sock = NULL;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001054 continue;
1055 }
1056 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001057 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001058 goto out;
1059 }
1060 len = tmpbuf[curoff++];
1061 if (len > 0) {
1062 /* We have a namespace */
1063 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001064 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001065 goto out;
1066 }
1067 xfer_sock->namespace = malloc(len + 1);
1068 if (!xfer_sock->namespace) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001069 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001070 goto out;
1071 }
1072 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
1073 xfer_sock->namespace[len] = 0;
1074 curoff += len;
1075 }
1076 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001077 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001078 goto out;
1079 }
1080 len = tmpbuf[curoff++];
1081 if (len > 0) {
1082 /* We have an interface */
1083 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001084 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001085 goto out;
1086 }
1087 xfer_sock->iface = malloc(len + 1);
1088 if (!xfer_sock->iface) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001089 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001090 goto out;
1091 }
1092 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
Olivier Houchard33e083c2018-03-15 17:48:49 +01001093 xfer_sock->iface[len] = 0;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001094 curoff += len;
1095 }
1096 if (curoff + sizeof(int) > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001097 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001098 goto out;
1099 }
1100 memcpy(&xfer_sock->options, &tmpbuf[curoff],
1101 sizeof(xfer_sock->options));
1102 curoff += sizeof(xfer_sock->options);
1103
1104 xfer_sock->fd = fd;
1105 if (xfer_sock_list)
1106 xfer_sock_list->prev = xfer_sock;
1107 xfer_sock->next = xfer_sock_list;
1108 xfer_sock->prev = NULL;
1109 xfer_sock_list = xfer_sock;
1110 xfer_sock = NULL;
1111 }
1112
1113 ret2 = 0;
1114out:
1115 /* If we failed midway make sure to close the remaining
1116 * file descriptors
1117 */
1118 if (tmpfd != NULL && i < got_fd) {
1119 for (; i < got_fd; i++) {
1120 close(tmpfd[i]);
1121 }
1122 }
1123 free(tmpbuf);
1124 free(tmpfd);
1125 free(cmsgbuf);
1126 if (sock != -1)
1127 close(sock);
1128 if (xfer_sock) {
1129 free(xfer_sock->namespace);
1130 free(xfer_sock->iface);
1131 if (xfer_sock->fd != -1)
1132 close(xfer_sock->fd);
1133 free(xfer_sock);
1134 }
1135 return (ret2);
1136}
1137
Willy Tarreaubaaee002006-06-26 02:48:02 +02001138/*
William Lallemand73b85e72017-06-01 17:38:51 +02001139 * copy and cleanup the current argv
1140 * Remove the -sf /-st parameters
1141 * Return an allocated copy of argv
1142 */
1143
1144static char **copy_argv(int argc, char **argv)
1145{
1146 char **newargv;
William Lallemand2bf6d622017-06-20 11:20:23 +02001147 int i = 0, j = 0;
William Lallemand73b85e72017-06-01 17:38:51 +02001148
1149 newargv = calloc(argc + 2, sizeof(char *));
1150 if (newargv == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001151 ha_warning("Cannot allocate memory\n");
William Lallemand73b85e72017-06-01 17:38:51 +02001152 return NULL;
1153 }
1154
William Lallemand2bf6d622017-06-20 11:20:23 +02001155 while (i < argc) {
1156 /* -sf or -st or -x */
William Lallemand29f690c2018-01-09 23:12:27 +01001157 if (i > 0 && argv[i][0] == '-' &&
1158 ((argv[i][1] == 's' && (argv[i][2] == 'f' || argv[i][2] == 't')) || argv[i][1] == 'x' )) {
William Lallemand2bf6d622017-06-20 11:20:23 +02001159 /* list of pids to finish ('f') or terminate ('t') or unix socket (-x) */
William Lallemand73b85e72017-06-01 17:38:51 +02001160 i++;
1161 while (i < argc && argv[i][0] != '-') {
1162 i++;
1163 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001164 continue;
William Lallemand73b85e72017-06-01 17:38:51 +02001165 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001166
1167 newargv[j++] = argv[i++];
William Lallemand73b85e72017-06-01 17:38:51 +02001168 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001169
William Lallemand73b85e72017-06-01 17:38:51 +02001170 return newargv;
1171}
1172
Willy Tarreau5a023f02019-03-01 14:19:31 +01001173/* considers splicing proxies' maxconn, computes the ideal global.maxpipes
1174 * setting, and returns it. It may return -1 meaning "unlimited" if some
1175 * unlimited proxies have been found and the global.maxconn value is not yet
1176 * set. It may also return a value greater than maxconn if it's not yet set.
1177 * Note that a value of zero means there is no need for pipes. -1 is never
1178 * returned if global.maxconn is valid.
1179 */
1180static int compute_ideal_maxpipes()
1181{
1182 struct proxy *cur;
1183 int nbfe = 0, nbbe = 0;
1184 int unlimited = 0;
1185 int pipes;
1186 int max;
1187
1188 for (cur = proxies_list; cur; cur = cur->next) {
1189 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
1190 if (cur->cap & PR_CAP_FE) {
1191 max = cur->maxconn;
1192 nbfe += max;
1193 if (!max) {
1194 unlimited = 1;
1195 break;
1196 }
1197 }
1198 if (cur->cap & PR_CAP_BE) {
1199 max = cur->fullconn ? cur->fullconn : global.maxconn;
1200 nbbe += max;
1201 if (!max) {
1202 unlimited = 1;
1203 break;
1204 }
1205 }
1206 }
1207 }
1208
1209 pipes = MAX(nbfe, nbbe);
1210 if (global.maxconn) {
1211 if (pipes > global.maxconn || unlimited)
1212 pipes = global.maxconn;
1213 } else if (unlimited) {
1214 pipes = -1;
1215 }
1216
1217 return pipes >= 4 ? pipes / 4 : pipes;
1218}
1219
Willy Tarreauac350932019-03-01 15:43:14 +01001220/* considers global.maxsocks, global.maxpipes, async engines, SSL frontends and
1221 * rlimits and computes an ideal maxconn. It's meant to be called only when
1222 * maxsock contains the sum of listening FDs, before it is updated based on
Willy Tarreaudf23c0c2019-03-13 10:10:49 +01001223 * maxconn and pipes. If there are not enough FDs left, DEFAULT_MAXCONN (by
1224 * default 100) is returned as it is expected that it will even run on tight
1225 * environments, and will maintain compatibility with previous packages that
1226 * used to rely on this value as the default one. The system will emit a
1227 * warning indicating how many FDs are missing anyway if needed.
Willy Tarreauac350932019-03-01 15:43:14 +01001228 */
1229static int compute_ideal_maxconn()
1230{
1231 int ssl_sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1232 int engine_fds = global.ssl_used_async_engines * ssl_sides;
1233 int pipes = compute_ideal_maxpipes();
1234 int remain = rlim_fd_cur_at_boot;
1235 int maxconn;
1236
1237 /* we have to take into account these elements :
1238 * - number of engine_fds, which inflates the number of FD needed per
1239 * connection by this number.
1240 * - number of pipes per connection on average : for the unlimited
1241 * case, this is 0.5 pipe FDs per connection, otherwise it's a
1242 * fixed value of 2*pipes.
1243 * - two FDs per connection
1244 */
1245
1246 /* subtract listeners and checks */
1247 remain -= global.maxsock;
1248
Willy Tarreau3f200852019-03-14 19:13:17 +01001249 /* one epoll_fd/kqueue_fd per thread */
1250 remain -= global.nbthread;
1251
1252 /* one wake-up pipe (2 fd) per thread */
1253 remain -= 2 * global.nbthread;
1254
Willy Tarreauac350932019-03-01 15:43:14 +01001255 /* Fixed pipes values : we only subtract them if they're not larger
1256 * than the remaining FDs because pipes are optional.
1257 */
1258 if (pipes >= 0 && pipes * 2 < remain)
1259 remain -= pipes * 2;
1260
1261 if (pipes < 0) {
1262 /* maxsock = maxconn * 2 + maxconn/4 * 2 + maxconn * engine_fds.
1263 * = maxconn * (2 + 0.5 + engine_fds)
1264 * = maxconn * (4 + 1 + 2*engine_fds) / 2
1265 */
1266 maxconn = 2 * remain / (5 + 2 * engine_fds);
1267 } else {
1268 /* maxsock = maxconn * 2 + maxconn * engine_fds.
1269 * = maxconn * (2 + engine_fds)
1270 */
1271 maxconn = remain / (2 + engine_fds);
1272 }
1273
Willy Tarreaudf23c0c2019-03-13 10:10:49 +01001274 return MAX(maxconn, DEFAULT_MAXCONN);
Willy Tarreauac350932019-03-01 15:43:14 +01001275}
1276
William Lallemand73b85e72017-06-01 17:38:51 +02001277/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001278 * This function initializes all the necessary variables. It only returns
1279 * if everything is OK. If something fails, it exits.
1280 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001281static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001282{
Willy Tarreaubaaee002006-06-26 02:48:02 +02001283 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001284 char *tmp;
1285 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +02001286 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +02001287 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +01001288 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +00001289 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +02001290 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +02001291 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +01001292 struct post_check_fct *pcf;
Willy Tarreauac350932019-03-01 15:43:14 +01001293 int ideal_maxconn;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001294
Christopher Faulete3a5e352017-10-24 13:53:54 +02001295 global.mode = MODE_STARTING;
William Lallemand73b85e72017-06-01 17:38:51 +02001296 next_argv = copy_argv(argc, argv);
1297
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001298 if (!init_trash_buffers(1)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001299 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet748919a2017-07-26 14:59:46 +02001300 exit(1);
1301 }
David du Colombier7af46052012-05-16 14:16:48 +02001302
Emeric Brun2b920a12010-09-23 18:30:22 +02001303 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
1304 * the string in case of truncation, and at least FreeBSD appears not to do
1305 * it.
1306 */
1307 memset(hostname, 0, sizeof(hostname));
1308 gethostname(hostname, sizeof(hostname) - 1);
1309 memset(localpeer, 0, sizeof(localpeer));
1310 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
William Lallemanddaf4cd22018-04-17 16:46:13 +02001311 setenv("HAPROXY_LOCALPEER", localpeer, 1);
Emeric Brun2b920a12010-09-23 18:30:22 +02001312
Willy Tarreaubaaee002006-06-26 02:48:02 +02001313 /*
1314 * Initialize the previously static variables.
1315 */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001316
Willy Tarreau173d9952018-01-26 21:48:23 +01001317 totalconn = actconn = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001318 killed = 0;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001319
Willy Tarreaubaaee002006-06-26 02:48:02 +02001320
1321#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +01001322 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001323#endif
1324
Benoit GARNIERb413c2a2016-03-27 11:08:03 +02001325 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001326 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001327 start_date = now;
1328
Willy Tarreau84310e22014-02-14 11:59:04 +01001329 srandom(now_ms - getpid());
1330
Willy Tarreau8ed669b2013-01-11 15:49:37 +01001331 if (init_acl() != 0)
1332 exit(1);
Willy Tarreaub6b3df32018-11-26 16:31:20 +01001333
Willy Tarreau8280d642009-09-23 23:37:52 +02001334 /* warning, we init buffers later */
Willy Tarreau04f1e2d2018-09-10 18:04:24 +02001335 if (!init_http(&err_msg)) {
1336 ha_alert("%s. Aborting.\n", err_msg);
1337 free(err_msg);
1338 abort();
1339 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001340
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001341 /* Initialise lua. */
1342 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001343
Christopher Fauletff2613e2016-11-09 11:36:17 +01001344 /* Initialize process vars */
1345 vars_init(&global.vars, SCOPE_PROC);
1346
Willy Tarreau43b78992009-01-25 15:42:27 +01001347 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001348#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001349 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001350#endif
1351#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001352 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001353#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001354#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +01001355 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001356#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001357#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001358 global.tune.options |= GTUNE_USE_SPLICE;
1359#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001360#if defined(USE_GETADDRINFO)
1361 global.tune.options |= GTUNE_USE_GAI;
1362#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001363#if defined(SO_REUSEPORT)
1364 global.tune.options |= GTUNE_USE_REUSEPORT;
1365#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001366
1367 pid = getpid();
1368 progname = *argv;
1369 while ((tmp = strchr(progname, '/')) != NULL)
1370 progname = tmp + 1;
1371
Kevinm48936af2010-12-22 16:08:21 +00001372 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +02001373 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +00001374
Willy Tarreaubaaee002006-06-26 02:48:02 +02001375 argc--; argv++;
1376 while (argc > 0) {
1377 char *flag;
1378
1379 if (**argv == '-') {
1380 flag = *argv+1;
1381
1382 /* 1 arg */
1383 if (*flag == 'v') {
1384 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +01001385 if (flag[1] == 'v') /* -vv */
1386 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001387 exit(0);
1388 }
1389#if defined(ENABLE_EPOLL)
1390 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +01001391 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001392#endif
1393#if defined(ENABLE_POLL)
1394 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +01001395 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001396#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +02001397#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001398 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +01001399 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001400#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001401#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001402 else if (*flag == 'd' && flag[1] == 'S')
1403 global.tune.options &= ~GTUNE_USE_SPLICE;
1404#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001405#if defined(USE_GETADDRINFO)
1406 else if (*flag == 'd' && flag[1] == 'G')
1407 global.tune.options &= ~GTUNE_USE_GAI;
1408#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001409#if defined(SO_REUSEPORT)
1410 else if (*flag == 'd' && flag[1] == 'R')
1411 global.tune.options &= ~GTUNE_USE_REUSEPORT;
1412#endif
Emeric Brun850efd52014-01-29 12:24:34 +01001413 else if (*flag == 'd' && flag[1] == 'V')
1414 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001415 else if (*flag == 'V')
1416 arg_mode |= MODE_VERBOSE;
1417 else if (*flag == 'd' && flag[1] == 'b')
1418 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +02001419 else if (*flag == 'd' && flag[1] == 'M')
1420 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +01001421 else if (*flag == 'd' && flag[1] == 'r')
1422 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001423 else if (*flag == 'd')
1424 arg_mode |= MODE_DEBUG;
1425 else if (*flag == 'c')
1426 arg_mode |= MODE_CHECK;
William Lallemand095ba4c2017-06-01 17:38:50 +02001427 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +02001428 arg_mode |= MODE_DAEMON;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001429 else if (*flag == 'W' && flag[1] == 's') {
Lukas Tribusf46bf952017-11-21 12:39:34 +01001430 arg_mode |= MODE_MWORKER | MODE_FOREGROUND;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001431#if defined(USE_SYSTEMD)
1432 global.tune.options |= GTUNE_USE_SYSTEMD;
1433#else
Christopher Faulet767a84b2017-11-24 16:50:31 +01001434 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 +01001435 usage(progname);
1436#endif
1437 }
William Lallemand095ba4c2017-06-01 17:38:50 +02001438 else if (*flag == 'W')
1439 arg_mode |= MODE_MWORKER;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001440 else if (*flag == 'q')
1441 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001442 else if (*flag == 'x') {
William Lallemand45eff442017-06-19 15:57:55 +02001443 if (argc <= 1 || argv[1][0] == '-') {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001444 ha_alert("Unix socket path expected with the -x flag\n\n");
William Lallemand45eff442017-06-19 15:57:55 +02001445 usage(progname);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001446 }
William Lallemand4fc09692017-06-19 16:37:19 +02001447 if (old_unixsocket)
Christopher Faulet767a84b2017-11-24 16:50:31 +01001448 ha_warning("-x option already set, overwriting the value\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001449 old_unixsocket = argv[1];
William Lallemand4fc09692017-06-19 16:37:19 +02001450
Olivier Houchardf73629d2017-04-05 22:33:04 +02001451 argv++;
1452 argc--;
1453 }
William Lallemande7361152018-10-26 14:47:36 +02001454 else if (*flag == 'S') {
1455 struct wordlist *c;
1456
1457 if (argc <= 1 || argv[1][0] == '-') {
1458 ha_alert("Socket and optional bind parameters expected with the -S flag\n");
1459 usage(progname);
1460 }
1461 if ((c = malloc(sizeof(*c))) == NULL || (c->s = strdup(argv[1])) == NULL) {
1462 ha_alert("Cannot allocate memory\n");
1463 exit(EXIT_FAILURE);
1464 }
1465 LIST_ADD(&mworker_cli_conf, &c->list);
1466
1467 argv++;
1468 argc--;
1469 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001470 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
1471 /* list of pids to finish ('f') or terminate ('t') */
1472
1473 if (flag[1] == 'f')
1474 oldpids_sig = SIGUSR1; /* finish then exit */
1475 else
1476 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001477 while (argc > 1 && argv[1][0] != '-') {
Chris Lane236062f2018-02-05 23:15:44 +00001478 char * endptr = NULL;
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001479 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
1480 if (!oldpids) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001481 ha_alert("Cannot allocate old pid : out of memory.\n");
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001482 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001483 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001484 argc--; argv++;
Chris Lane236062f2018-02-05 23:15:44 +00001485 errno = 0;
1486 oldpids[nb_oldpids] = strtol(*argv, &endptr, 10);
1487 if (errno) {
1488 ha_alert("-%2s option: failed to parse {%s}: %s\n",
1489 flag,
1490 *argv, strerror(errno));
1491 exit(1);
1492 } else if (endptr && strlen(endptr)) {
1493 while (isspace(*endptr)) endptr++;
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001494 if (*endptr != 0) {
Chris Lane236062f2018-02-05 23:15:44 +00001495 ha_alert("-%2s option: some bytes unconsumed in PID list {%s}\n",
1496 flag, endptr);
1497 exit(1);
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001498 }
Chris Lane236062f2018-02-05 23:15:44 +00001499 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001500 if (oldpids[nb_oldpids] <= 0)
1501 usage(progname);
1502 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001503 }
1504 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001505 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
1506 /* now that's a cfgfile list */
1507 argv++; argc--;
1508 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001509 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001510 ha_alert("Cannot load configuration file/directory %s : %s\n",
1511 *argv,
1512 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +02001513 exit(1);
1514 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001515 argv++; argc--;
1516 }
1517 break;
1518 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001519 else { /* >=2 args */
1520 argv++; argc--;
1521 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001522 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001523
1524 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +02001525 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001526 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +01001527 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001528 case 'N' : cfg_maxpconn = atol(*argv); break;
William Lallemanddaf4cd22018-04-17 16:46:13 +02001529 case 'L' :
1530 strncpy(localpeer, *argv, sizeof(localpeer) - 1);
1531 setenv("HAPROXY_LOCALPEER", localpeer, 1);
1532 break;
Willy Tarreau5d01a632009-06-22 16:02:30 +02001533 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +02001534 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001535 ha_alert("Cannot load configuration file/directory %s : %s\n",
1536 *argv,
1537 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +02001538 exit(1);
1539 }
Willy Tarreau5d01a632009-06-22 16:02:30 +02001540 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001541 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001542 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001543 }
1544 }
1545 }
1546 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001547 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001548 argv++; argc--;
1549 }
1550
Christopher Faulete3a5e352017-10-24 13:53:54 +02001551 global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
1552 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001553
William Lallemand944e6192018-11-21 15:48:31 +01001554 if (getenv("HAPROXY_MWORKER_WAIT_ONLY")) {
William Lallemandcb11fd22017-06-01 17:38:52 +02001555 unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
William Lallemand944e6192018-11-21 15:48:31 +01001556 global.mode |= MODE_MWORKER_WAIT;
1557 global.mode &= ~MODE_MWORKER;
William Lallemandcb11fd22017-06-01 17:38:52 +02001558 }
1559
1560 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") != NULL)) {
1561 atexit_flag = 1;
1562 atexit(reexec_on_failure);
1563 }
1564
Willy Tarreau576132e2011-09-10 19:26:56 +02001565 if (change_dir && chdir(change_dir) < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001566 ha_alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
Willy Tarreau576132e2011-09-10 19:26:56 +02001567 exit(1);
1568 }
1569
Willy Tarreaubaaee002006-06-26 02:48:02 +02001570 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001571
1572 init_default_instance();
1573
William Lallemand944e6192018-11-21 15:48:31 +01001574 /* in wait mode, we don't try to read the configuration files */
1575 if (!(global.mode & MODE_MWORKER_WAIT)) {
Willy Tarreauc4382422009-12-06 13:10:44 +01001576
William Lallemand944e6192018-11-21 15:48:31 +01001577 /* handle cfgfiles that are actually directories */
1578 cfgfiles_expand_directories();
1579
1580 if (LIST_ISEMPTY(&cfg_cfgfiles))
1581 usage(progname);
1582
1583
1584 list_for_each_entry(wl, &cfg_cfgfiles, list) {
1585 int ret;
1586
1587 ret = readcfgfile(wl->s);
1588 if (ret == -1) {
1589 ha_alert("Could not open configuration file %s : %s\n",
1590 wl->s, strerror(errno));
1591 exit(1);
1592 }
1593 if (ret & (ERR_ABORT|ERR_FATAL))
1594 ha_alert("Error(s) found in configuration file : %s\n", wl->s);
1595 err_code |= ret;
1596 if (err_code & ERR_ABORT)
1597 exit(1);
Willy Tarreauc4382422009-12-06 13:10:44 +01001598 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001599
William Lallemand944e6192018-11-21 15:48:31 +01001600 /* do not try to resolve arguments nor to spot inconsistencies when
1601 * the configuration contains fatal errors caused by files not found
1602 * or failed memory allocations.
1603 */
1604 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1605 ha_alert("Fatal errors found in configuration.\n");
1606 exit(1);
1607 }
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001608 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001609 if (global.mode & MODE_MWORKER) {
1610 int proc;
William Lallemand16dd1b32018-11-19 18:46:18 +01001611 struct mworker_proc *tmproc;
1612
William Lallemand482f9a92019-04-12 16:15:00 +02001613 setenv("HAPROXY_MWORKER", "1", 1);
1614
William Lallemand16dd1b32018-11-19 18:46:18 +01001615 if (getenv("HAPROXY_MWORKER_REEXEC") == NULL) {
1616
William Lallemandf3a86832019-04-01 11:29:58 +02001617 tmproc = calloc(1, sizeof(*tmproc));
William Lallemand16dd1b32018-11-19 18:46:18 +01001618 if (!tmproc) {
1619 ha_alert("Cannot allocate process structures.\n");
1620 exit(EXIT_FAILURE);
1621 }
William Lallemand8f7069a2019-04-12 16:09:23 +02001622 tmproc->options |= PROC_O_TYPE_MASTER; /* master */
William Lallemand16dd1b32018-11-19 18:46:18 +01001623 tmproc->reloads = 0;
1624 tmproc->relative_pid = 0;
1625 tmproc->pid = pid;
1626 tmproc->timestamp = start_date.tv_sec;
1627 tmproc->ipc_fd[0] = -1;
1628 tmproc->ipc_fd[1] = -1;
1629
1630 proc_self = tmproc;
1631
1632 LIST_ADDQ(&proc_list, &tmproc->list);
1633 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001634
1635 for (proc = 0; proc < global.nbproc; proc++) {
William Lallemandce83b4a2018-10-26 14:47:30 +02001636
William Lallemandf3a86832019-04-01 11:29:58 +02001637 tmproc = calloc(1, sizeof(*tmproc));
William Lallemandce83b4a2018-10-26 14:47:30 +02001638 if (!tmproc) {
1639 ha_alert("Cannot allocate process structures.\n");
1640 exit(EXIT_FAILURE);
1641 }
1642
William Lallemand8f7069a2019-04-12 16:09:23 +02001643 tmproc->options |= PROC_O_TYPE_WORKER; /* worker */
William Lallemandce83b4a2018-10-26 14:47:30 +02001644 tmproc->pid = -1;
1645 tmproc->reloads = 0;
William Lallemande3683302018-11-19 18:46:17 +01001646 tmproc->timestamp = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001647 tmproc->relative_pid = 1 + proc;
William Lallemand550db6d2018-11-06 17:37:12 +01001648 tmproc->ipc_fd[0] = -1;
1649 tmproc->ipc_fd[1] = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001650
1651 if (mworker_cli_sockpair_new(tmproc, proc) < 0) {
1652 exit(EXIT_FAILURE);
1653 }
1654
1655 LIST_ADDQ(&proc_list, &tmproc->list);
1656 }
William Lallemand944e6192018-11-21 15:48:31 +01001657 }
1658 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
1659 struct wordlist *it, *c;
1660
William Lallemand1b663612018-10-26 14:47:33 +02001661 mworker_env_to_proc_list(); /* get the info of the children in the env */
William Lallemand8a022572018-10-26 14:47:35 +02001662
William Lallemande7361152018-10-26 14:47:36 +02001663
William Lallemand550db6d2018-11-06 17:37:12 +01001664 if (!LIST_ISEMPTY(&mworker_cli_conf)) {
William Lallemande7361152018-10-26 14:47:36 +02001665
William Lallemand550db6d2018-11-06 17:37:12 +01001666 if (mworker_cli_proxy_create() < 0) {
William Lallemande7361152018-10-26 14:47:36 +02001667 ha_alert("Can't create the master's CLI.\n");
1668 exit(EXIT_FAILURE);
1669 }
William Lallemande7361152018-10-26 14:47:36 +02001670
William Lallemand550db6d2018-11-06 17:37:12 +01001671 list_for_each_entry_safe(c, it, &mworker_cli_conf, list) {
1672
1673 if (mworker_cli_proxy_new_listener(c->s) < 0) {
1674 ha_alert("Can't create the master's CLI.\n");
1675 exit(EXIT_FAILURE);
1676 }
1677 LIST_DEL(&c->list);
1678 free(c->s);
1679 free(c);
1680 }
1681 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001682 }
1683
Willy Tarreaubb925012009-07-23 13:36:36 +02001684 err_code |= check_config_validity();
1685 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001686 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001687 exit(1);
1688 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001689
Willy Tarreau0f936722019-04-11 14:47:08 +02001690 pattern_finalize_config();
1691
Willy Tarreau70060452015-12-14 12:46:07 +01001692 /* recompute the amount of per-process memory depending on nbproc and
1693 * the shared SSL cache size (allowed to exist in all processes).
1694 */
1695 if (global.rlimit_memmax_all) {
1696#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
1697 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
1698
1699 global.rlimit_memmax =
1700 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
1701 ssl_cache_bytes) / global.nbproc +
1702 ssl_cache_bytes + 1048575LL) / 1048576LL;
1703#else
1704 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
1705#endif
1706 }
1707
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001708#ifdef CONFIG_HAP_NS
1709 err_code |= netns_init();
1710 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001711 ha_alert("Failed to initialize namespace support.\n");
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001712 exit(1);
1713 }
1714#endif
1715
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001716 /* Apply server states */
1717 apply_server_state();
1718
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001719 for (px = proxies_list; px; px = px->next)
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001720 srv_compute_all_admin_states(px);
1721
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001722 /* Apply servers' configured address */
1723 err_code |= srv_init_addr();
1724 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001725 ha_alert("Failed to initialize server(s) addr.\n");
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001726 exit(1);
1727 }
1728
Willy Tarreaubaaee002006-06-26 02:48:02 +02001729 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001730 struct peers *pr;
1731 struct proxy *px;
1732
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001733 for (pr = cfg_peers; pr; pr = pr->next)
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001734 if (pr->peers_fe)
1735 break;
1736
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001737 for (px = proxies_list; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02001738 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001739 break;
1740
1741 if (pr || px) {
1742 /* At least one peer or one listener has been found */
1743 qfprintf(stdout, "Configuration file is valid\n");
1744 exit(0);
1745 }
1746 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
1747 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001748 }
1749
Emeric Brunc60def82017-09-27 14:59:38 +02001750 global_listener_queue_task = task_new(MAX_THREADS_MASK);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001751 if (!global_listener_queue_task) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001752 ha_alert("Out of memory when initializing global task\n");
Willy Tarreaue9b26022011-08-01 20:57:55 +02001753 exit(1);
1754 }
1755 /* very simple initialization, users will queue the task if needed */
1756 global_listener_queue_task->context = NULL; /* not even a context! */
1757 global_listener_queue_task->process = manage_global_listener_queue;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001758
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001759 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02001760 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02001761
Willy Tarreaue6945732016-12-21 19:57:00 +01001762 list_for_each_entry(pcf, &post_check_list, list) {
1763 err_code |= pcf->fct();
1764 if (err_code & (ERR_ABORT|ERR_FATAL))
1765 exit(1);
1766 }
1767
Willy Tarreaubaaee002006-06-26 02:48:02 +02001768 if (cfg_maxconn > 0)
1769 global.maxconn = cfg_maxconn;
1770
Willy Tarreau8d687d82019-03-01 09:39:42 +01001771 if (global.stats_fe)
1772 global.maxsock += global.stats_fe->maxconn;
1773
1774 if (cfg_peers) {
1775 /* peers also need to bypass global maxconn */
1776 struct peers *p = cfg_peers;
1777
1778 for (p = cfg_peers; p; p = p->next)
1779 if (p->peers_fe)
1780 global.maxsock += p->peers_fe->maxconn;
1781 }
1782
Willy Tarreaubaaee002006-06-26 02:48:02 +02001783 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02001784 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001785 global.pidfile = strdup(cfg_pidfile);
1786 }
1787
Willy Tarreaud0256482015-01-15 21:45:22 +01001788 /* Now we want to compute the maxconn and possibly maxsslconn values.
Willy Tarreauac350932019-03-01 15:43:14 +01001789 * It's a bit tricky. Maxconn defaults to the pre-computed value based
1790 * on rlim_fd_cur and the number of FDs in use due to the configuration,
1791 * and maxsslconn defaults to DEFAULT_MAXSSLCONN. On top of that we can
1792 * enforce a lower limit based on memmax.
Willy Tarreaud0256482015-01-15 21:45:22 +01001793 *
1794 * If memmax is set, then it depends on which values are set. If
1795 * maxsslconn is set, we use memmax to determine how many cleartext
1796 * connections may be added, and set maxconn to the sum of the two.
1797 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1798 * the remaining amount of memory between memmax and the cleartext
1799 * connections. If neither are set, then it is considered that all
1800 * connections are SSL-capable, and maxconn is computed based on this,
1801 * then maxsslconn accordingly. We need to know if SSL is used on the
1802 * frontends, backends, or both, because when it's used on both sides,
1803 * we need twice the value for maxsslconn, but we only count the
1804 * handshake once since it is not performed on the two sides at the
1805 * same time (frontend-side is terminated before backend-side begins).
1806 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001807 * ssl_handshake_cost during its initialization. In any case, if
1808 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1809 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001810 */
Willy Tarreauac350932019-03-01 15:43:14 +01001811 ideal_maxconn = compute_ideal_maxconn();
1812
Willy Tarreaud0256482015-01-15 21:45:22 +01001813 if (!global.rlimit_memmax) {
1814 if (global.maxconn == 0) {
Willy Tarreauac350932019-03-01 15:43:14 +01001815 global.maxconn = ideal_maxconn;
Willy Tarreaud0256482015-01-15 21:45:22 +01001816 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1817 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1818 }
1819 }
1820#ifdef USE_OPENSSL
1821 else if (!global.maxconn && !global.maxsslconn &&
1822 (global.ssl_used_frontend || global.ssl_used_backend)) {
1823 /* memmax is set, compute everything automatically. Here we want
1824 * to ensure that all SSL connections will be served. We take
1825 * care of the number of sides where SSL is used, and consider
1826 * the worst case : SSL used on both sides and doing a handshake
1827 * simultaneously. Note that we can't have more than maxconn
1828 * handshakes at a time by definition, so for the worst case of
1829 * two SSL conns per connection, we count a single handshake.
1830 */
1831 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1832 int64_t mem = global.rlimit_memmax * 1048576ULL;
1833
1834 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1835 mem -= global.maxzlibmem;
1836 mem = mem * MEM_USABLE_RATIO;
1837
1838 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001839 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001840 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1841 global.ssl_handshake_max_cost); // 1 handshake per connection max
1842
Willy Tarreauac350932019-03-01 15:43:14 +01001843 global.maxconn = MIN(global.maxconn, ideal_maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001844 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001845#ifdef SYSTEM_MAXCONN
Willy Tarreauca783d42019-03-13 10:03:07 +01001846 if (global.maxconn > SYSTEM_MAXCONN)
1847 global.maxconn = SYSTEM_MAXCONN;
Willy Tarreau474b96a2015-01-28 19:03:21 +01001848#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001849 global.maxsslconn = sides * global.maxconn;
1850 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1851 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1852 global.maxconn, global.maxsslconn);
1853 }
1854 else if (!global.maxsslconn &&
1855 (global.ssl_used_frontend || global.ssl_used_backend)) {
1856 /* memmax and maxconn are known, compute maxsslconn automatically.
1857 * maxsslconn being forced, we don't know how many of it will be
1858 * on each side if both sides are being used. The worst case is
1859 * when all connections use only one SSL instance because
1860 * handshakes may be on two sides at the same time.
1861 */
1862 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1863 int64_t mem = global.rlimit_memmax * 1048576ULL;
1864 int64_t sslmem;
1865
1866 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1867 mem -= global.maxzlibmem;
1868 mem = mem * MEM_USABLE_RATIO;
1869
Willy Tarreau87b09662015-04-03 00:22:06 +02001870 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001871 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1872 global.maxsslconn = round_2dig(global.maxsslconn);
1873
1874 if (sslmem <= 0 || global.maxsslconn < sides) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001875 ha_alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1876 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1877 "without SSL is %d, but %d was found and SSL is in use.\n",
1878 global.rlimit_memmax,
1879 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
1880 global.maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001881 exit(1);
1882 }
1883
1884 if (global.maxsslconn > sides * global.maxconn)
1885 global.maxsslconn = sides * global.maxconn;
1886
1887 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1888 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1889 }
1890#endif
1891 else if (!global.maxconn) {
1892 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1893 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1894 int64_t mem = global.rlimit_memmax * 1048576ULL;
1895 int64_t clearmem;
1896
1897 if (global.ssl_used_frontend || global.ssl_used_backend)
1898 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1899
1900 mem -= global.maxzlibmem;
1901 mem = mem * MEM_USABLE_RATIO;
1902
1903 clearmem = mem;
1904 if (sides)
1905 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1906
Willy Tarreau87b09662015-04-03 00:22:06 +02001907 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreauac350932019-03-01 15:43:14 +01001908 global.maxconn = MIN(global.maxconn, ideal_maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001909 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001910#ifdef SYSTEM_MAXCONN
Willy Tarreauca783d42019-03-13 10:03:07 +01001911 if (global.maxconn > SYSTEM_MAXCONN)
1912 global.maxconn = SYSTEM_MAXCONN;
Willy Tarreau474b96a2015-01-28 19:03:21 +01001913#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001914
1915 if (clearmem <= 0 || !global.maxconn) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001916 ha_alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
1917 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1918 "is %d, but %d was found.\n",
1919 global.rlimit_memmax,
1920 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
1921 global.maxsslconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001922 exit(1);
1923 }
1924
1925 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1926 if (sides && global.maxsslconn > sides * global.maxconn) {
1927 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
1928 "to be limited to %d. Better reduce global.maxsslconn to get more "
1929 "room for extra connections.\n", global.maxsslconn, global.maxconn);
1930 }
1931 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
1932 }
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001933 }
1934
Willy Tarreau5a023f02019-03-01 14:19:31 +01001935 if (!global.maxpipes)
1936 global.maxpipes = compute_ideal_maxpipes();
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001937
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001938 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001939 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01001940 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreau2c58b412019-03-14 19:10:55 +01001941 global.maxsock += global.nbthread; /* one epoll_fd/kqueue_fd per thread */
1942 global.maxsock += 2 * global.nbthread; /* one wake-up pipe (2 fd) per thread */
1943
Emeric Brunece0c332017-12-06 13:51:49 +01001944 /* compute fd used by async engines */
1945 if (global.ssl_used_async_engines) {
1946 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1947 global.maxsock += global.maxconn * sides * global.ssl_used_async_engines;
1948 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001949
Olivier Houchard88698d92019-04-16 19:07:22 +02001950 /* update connection pool thresholds */
1951 global.tune.pool_low_count = ((long long)global.maxsock * global.tune.pool_low_ratio + 99) / 100;
1952 global.tune.pool_high_count = ((long long)global.maxsock * global.tune.pool_high_ratio + 99) / 100;
1953
Willy Tarreauc8d5b952019-02-27 17:25:52 +01001954 proxy_adjust_all_maxconn();
1955
Willy Tarreau1db37712007-06-03 17:16:49 +02001956 if (global.tune.maxpollevents <= 0)
1957 global.tune.maxpollevents = MAX_POLL_EVENTS;
1958
Olivier Houchard1599b802018-05-24 18:59:04 +02001959 if (global.tune.runqueue_depth <= 0)
1960 global.tune.runqueue_depth = RUNQUEUE_DEPTH;
1961
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01001962 if (global.tune.recv_enough == 0)
1963 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
1964
Willy Tarreau27097842015-09-28 13:53:23 +02001965 if (global.tune.maxrewrite < 0)
1966 global.tune.maxrewrite = MAXREWRITE;
1967
Willy Tarreau27a674e2009-08-17 07:23:33 +02001968 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
1969 global.tune.maxrewrite = global.tune.bufsize / 2;
1970
Willy Tarreaubaaee002006-06-26 02:48:02 +02001971 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
1972 /* command line debug mode inhibits configuration mode */
William Lallemand095ba4c2017-06-01 17:38:50 +02001973 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001974 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
1975 }
1976
William Lallemand095ba4c2017-06-01 17:38:50 +02001977 if (arg_mode & MODE_DAEMON) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001978 /* command line daemon mode inhibits foreground and debug modes mode */
1979 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
William Lallemand095ba4c2017-06-01 17:38:50 +02001980 global.mode |= arg_mode & MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001981 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001982
1983 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001984
William Lallemand095ba4c2017-06-01 17:38:50 +02001985 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001986 ha_warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
William Lallemand095ba4c2017-06-01 17:38:50 +02001987 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001988 }
1989
William Lallemand095ba4c2017-06-01 17:38:50 +02001990 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_MWORKER))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001991 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
Christopher Faulet767a84b2017-11-24 16:50:31 +01001992 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 +02001993 global.nbproc = 1;
1994 }
1995
1996 if (global.nbproc < 1)
1997 global.nbproc = 1;
1998
Christopher Fauletbe0faa22017-08-29 15:37:10 +02001999 if (global.nbthread < 1)
2000 global.nbthread = 1;
2001
Christopher Faulet3ef26392017-08-29 16:46:57 +02002002 /* Realloc trash buffers because global.tune.bufsize may have changed */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002003 if (!init_trash_buffers(0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002004 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet3ef26392017-08-29 16:46:57 +02002005 exit(1);
2006 }
2007
Christopher Faulet96d44832017-11-14 22:02:30 +01002008 if (!init_log_buffers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002009 ha_alert("failed to initialize log buffers.\n");
Christopher Faulet96d44832017-11-14 22:02:30 +01002010 exit(1);
2011 }
2012
Willy Tarreauef1d1f82007-04-16 00:25:25 +02002013 /*
2014 * Note: we could register external pollers here.
2015 * Built-in pollers have been registered before main().
2016 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02002017
Willy Tarreau43b78992009-01-25 15:42:27 +01002018 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02002019 disable_poller("kqueue");
2020
Willy Tarreau43b78992009-01-25 15:42:27 +01002021 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002022 disable_poller("epoll");
2023
Willy Tarreau43b78992009-01-25 15:42:27 +01002024 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002025 disable_poller("poll");
2026
Willy Tarreau43b78992009-01-25 15:42:27 +01002027 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002028 disable_poller("select");
2029
2030 /* Note: we could disable any poller by name here */
2031
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002032 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02002033 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002034 fprintf(stderr, "\n");
2035 list_filters(stderr);
2036 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002037
Willy Tarreau4f60f162007-04-08 16:39:58 +02002038 if (!init_pollers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002039 ha_alert("No polling mechanism available.\n"
2040 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
2041 " is too low on this platform to support maxconn and the number of listeners\n"
2042 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
2043 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
2044 " global maxconn setting to accommodate the system's limitation. For reference,\n"
2045 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
2046 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
2047 " check build settings using 'haproxy -vv'.\n\n",
2048 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002049 exit(1);
2050 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002051 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2052 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002053 }
2054
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002055 if (!global.node)
2056 global.node = strdup(hostname);
2057
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01002058 if (!hlua_post_init())
2059 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01002060
Maxime de Roucy0f503922016-05-13 23:52:55 +02002061 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002062}
2063
Simon Horman6fb82592011-07-15 13:14:11 +09002064static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09002065{
Simon Hormanac821422011-07-15 13:14:09 +09002066 struct acl_term_suite *suite, *suiteb;
2067 struct acl_term *term, *termb;
2068
Simon Horman6fb82592011-07-15 13:14:11 +09002069 if (!cond)
2070 return;
2071
2072 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
2073 list_for_each_entry_safe(term, termb, &suite->terms, list) {
2074 LIST_DEL(&term->list);
2075 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09002076 }
Simon Horman6fb82592011-07-15 13:14:11 +09002077 LIST_DEL(&suite->list);
2078 free(suite);
2079 }
2080
2081 free(cond);
2082}
2083
2084static void deinit_tcp_rules(struct list *rules)
2085{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02002086 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09002087
2088 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09002089 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09002090 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09002091 free(trule);
2092 }
2093}
2094
Simon Horman6fb82592011-07-15 13:14:11 +09002095static void deinit_stick_rules(struct list *rules)
2096{
2097 struct sticking_rule *rule, *ruleb;
2098
2099 list_for_each_entry_safe(rule, ruleb, rules, list) {
2100 LIST_DEL(&rule->list);
2101 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02002102 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09002103 free(rule);
2104 }
2105}
2106
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002107void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002108{
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002109 struct proxy *p = proxies_list, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002110 struct cap_hdr *h,*h_next;
2111 struct server *s,*s_next;
2112 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002113 struct acl_cond *cond, *condb;
2114 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002115 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002116 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002117 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002118 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002119 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01002120 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002121 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02002122 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01002123 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002124 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002125 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01002126 struct post_deinit_fct *pdf;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002127 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002128
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002129 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002130 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02002131 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002132 free(p->id);
2133 free(p->check_req);
2134 free(p->cookie_name);
2135 free(p->cookie_domain);
Willy Tarreau4c03d1c2019-01-14 15:23:54 +01002136 free(p->lbprm.arg_str);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002137 free(p->capture_name);
2138 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09002139 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02002140 if (p->conf.logformat_string != default_http_log_format &&
2141 p->conf.logformat_string != default_tcp_log_format &&
2142 p->conf.logformat_string != clf_http_log_format)
2143 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02002144
Willy Tarreau62a61232013-04-12 18:13:46 +02002145 free(p->conf.lfs_file);
2146 free(p->conf.uniqueid_format_string);
2147 free(p->conf.uif_file);
Willy Tarreau0cac26c2019-01-14 16:55:42 +01002148 if ((p->lbprm.algo & BE_LB_LKUP) == BE_LB_LKUP_MAP)
2149 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002150
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002151 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
2152 free(p->conf.logformat_sd_string);
2153 free(p->conf.lfsd_file);
2154
Willy Tarreaua534fea2008-08-03 12:19:50 +02002155 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02002156 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002157
Willy Tarreauf4f04122010-01-28 18:10:50 +01002158 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
2159 LIST_DEL(&cwl->list);
2160 free(cwl->s);
2161 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002162 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002163
Willy Tarreauf4f04122010-01-28 18:10:50 +01002164 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
2165 LIST_DEL(&cwl->list);
2166 free(cwl->s);
2167 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002168 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002169
Willy Tarreaub80c2302007-11-30 20:51:32 +01002170 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
2171 LIST_DEL(&cond->list);
2172 prune_acl_cond(cond);
2173 free(cond);
2174 }
2175
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002176 for (exp = p->req_exp; exp != NULL; ) {
Dragan Dosen26743032019-04-30 15:54:36 +02002177 regex_free(exp->preg);
Willy Tarreau98d04852015-05-26 12:18:29 +02002178 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002179 expb = exp;
2180 exp = exp->next;
2181 free(expb);
2182 }
2183
2184 for (exp = p->rsp_exp; exp != NULL; ) {
Dragan Dosen26743032019-04-30 15:54:36 +02002185 regex_free(exp->preg);
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);
2226 }
Dragan Dosen2a7c20f2019-04-30 00:38:36 +02002227 free(rule->file);
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);
Dragan Dosen61302da2019-04-30 00:40:02 +02002252 release_sample_expr(lf->expr);
2253 free(lf->arg);
William Lallemand723b73a2012-02-08 16:37:49 +01002254 free(lf);
2255 }
2256
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002257 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
2258 LIST_DEL(&lf->list);
Dragan Dosen61302da2019-04-30 00:40:02 +02002259 release_sample_expr(lf->expr);
2260 free(lf->arg);
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002261 free(lf);
2262 }
2263
Simon Hormanac821422011-07-15 13:14:09 +09002264 deinit_tcp_rules(&p->tcp_req.inspect_rules);
Kevin Zhu13ebef72019-01-30 16:01:21 +08002265 deinit_tcp_rules(&p->tcp_rep.inspect_rules);
Simon Hormanac821422011-07-15 13:14:09 +09002266 deinit_tcp_rules(&p->tcp_req.l4_rules);
2267
Simon Horman6fb82592011-07-15 13:14:11 +09002268 deinit_stick_rules(&p->storersp_rules);
2269 deinit_stick_rules(&p->sticking_rules);
2270
Willy Tarreaubaaee002006-06-26 02:48:02 +02002271 h = p->req_cap;
2272 while (h) {
2273 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002274 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002275 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002276 free(h);
2277 h = h_next;
2278 }/* end while(h) */
2279
2280 h = p->rsp_cap;
2281 while (h) {
2282 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002283 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002284 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002285 free(h);
2286 h = h_next;
2287 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002288
Willy Tarreaubaaee002006-06-26 02:48:02 +02002289 s = p->srv;
2290 while (s) {
2291 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002292
Willy Tarreauf6562792019-05-07 19:05:35 +02002293 task_destroy(s->check.task);
2294 task_destroy(s->agent.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002295
Dragan Dosen026ef572019-04-30 00:56:20 +02002296 if (s->check.wait_list.task)
2297 tasklet_free(s->check.wait_list.task);
2298 if (s->agent.wait_list.task)
2299 tasklet_free(s->agent.wait_list.task);
2300
Willy Tarreauf6562792019-05-07 19:05:35 +02002301 task_destroy(s->warmup);
Willy Tarreau2e993902011-10-31 11:53:20 +01002302
Willy Tarreaua534fea2008-08-03 12:19:50 +02002303 free(s->id);
2304 free(s->cookie);
Willy Tarreauc9fa0482018-07-10 17:43:27 +02002305 free(s->check.bi.area);
2306 free(s->check.bo.area);
2307 free(s->agent.bi.area);
2308 free(s->agent.bo.area);
James Brown55f9ff12015-10-21 18:19:05 -07002309 free(s->agent.send_string);
Christopher Faulet67957bd2017-09-27 11:00:59 +02002310 free(s->hostname_dn);
Sárközi, László34c01792014-09-05 10:08:23 +02002311 free((char*)s->conf.file);
Olivier Houchard7fc3be72018-11-22 18:50:54 +01002312 free(s->idle_conns);
2313 free(s->priv_conns);
2314 free(s->safe_conns);
Olivier Houchard0c18a6f2018-12-02 14:11:41 +01002315 free(s->idle_orphan_conns);
Olivier Houchardf1314812019-02-18 16:41:17 +01002316 free(s->curr_idle_thr);
Willy Tarreau17d45382016-12-22 21:16:08 +01002317
2318 if (s->use_ssl || s->check.use_ssl) {
2319 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
2320 xprt_get(XPRT_SSL)->destroy_srv(s);
2321 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002322 HA_SPIN_DESTROY(&s->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002323 free(s);
2324 s = s_next;
2325 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002326
Willy Tarreau4348fad2012-09-20 16:48:07 +02002327 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002328 /*
2329 * Zombie proxy, the listener just pretend to be up
2330 * because they still hold an opened fd.
2331 * Close it and give the listener its real state.
2332 */
2333 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
2334 close(l->fd);
2335 l->state = LI_INIT;
2336 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02002337 unbind_listener(l);
2338 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002339 LIST_DEL(&l->by_fe);
2340 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002341 free(l->name);
2342 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002343 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002344 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002345
Willy Tarreau4348fad2012-09-20 16:48:07 +02002346 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002347 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01002348 if (bind_conf->xprt->destroy_bind_conf)
2349 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002350 free(bind_conf->file);
2351 free(bind_conf->arg);
2352 LIST_DEL(&bind_conf->by_fe);
2353 free(bind_conf);
2354 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02002355
Christopher Fauletd7c91962015-04-30 11:48:27 +02002356 flt_deinit(p);
2357
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002358 free(p->desc);
2359 free(p->fwdfor_hdr_name);
2360
Willy Tarreauff011f22011-01-06 17:51:27 +01002361 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06002362 free_http_res_rules(&p->http_res_rules);
Olivier Houchard3f795f72019-04-17 22:51:06 +02002363 task_destroy(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01002364
Willy Tarreaubafbe012017-11-24 17:34:44 +01002365 pool_destroy(p->req_cap_pool);
2366 pool_destroy(p->rsp_cap_pool);
Dragan Dosen7d61a332019-05-07 14:16:18 +02002367 if (p->table)
2368 pool_destroy(p->table->pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002369
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002370 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002371 p = p->next;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002372 HA_SPIN_DESTROY(&p0->lbprm.lock);
2373 HA_SPIN_DESTROY(&p0->lock);
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002374 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002375 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02002376
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002377 while (ua) {
2378 uap = ua;
2379 ua = ua->next;
2380
Willy Tarreaua534fea2008-08-03 12:19:50 +02002381 free(uap->uri_prefix);
2382 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002383 free(uap->node);
2384 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002385
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002386 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01002387 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002388
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002389 free(uap);
2390 }
2391
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002392 userlist_free(userlist);
2393
David Carlier834cb2e2015-09-25 12:02:25 +01002394 cfg_unregister_sections();
2395
Christopher Faulet0132d062017-07-26 15:33:35 +02002396 deinit_log_buffers();
David Carlier834cb2e2015-09-25 12:02:25 +01002397
Willy Tarreaudd815982007-10-16 12:25:14 +02002398 protocol_unbind_all();
2399
Willy Tarreau05554e62016-12-21 20:46:26 +01002400 list_for_each_entry(pdf, &post_deinit_list, list)
2401 pdf->fct();
2402
Joe Williamsdf5b38f2010-12-29 17:05:48 +01002403 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02002404 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002405 free(global.chroot); global.chroot = NULL;
2406 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002407 free(global.node); global.node = NULL;
2408 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002409 free(oldpids); oldpids = NULL;
Olivier Houchard3f795f72019-04-17 22:51:06 +02002410 task_destroy(global_listener_queue_task); global_listener_queue_task = NULL;
2411 task_destroy(idle_conn_task);
Olivier Houchard9ea5d362019-02-14 18:29:09 +01002412 idle_conn_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002413
William Lallemand0f99e342011-10-12 17:50:54 +02002414 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
2415 LIST_DEL(&log->list);
2416 free(log);
2417 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01002418 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02002419 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01002420 LIST_DEL(&wl->list);
2421 free(wl);
2422 }
2423
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002424 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
2425 if (bol->must_free)
2426 free((void *)bol->str);
2427 LIST_DEL(&bol->list);
2428 free(bol);
2429 }
2430
Christopher Fauletff2613e2016-11-09 11:36:17 +01002431 vars_prune(&global.vars, NULL, NULL);
Willy Tarreau2455ceb2018-11-26 15:57:34 +01002432 pool_destroy_all();
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002433 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002434} /* end deinit() */
2435
William Lallemand72160322018-11-06 17:37:16 +01002436
Willy Tarreau918ff602011-07-25 16:33:49 +02002437/* Runs the polling loop */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01002438static void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02002439{
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002440 int next, exp;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002441
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002442 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002443 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002444 /* Process a few tasks */
2445 process_runnable_tasks();
2446
William Lallemand1aab50b2018-06-07 09:46:01 +02002447 /* check if we caught some signals and process them in the
2448 first thread */
2449 if (tid == 0)
2450 signal_process_queue();
Willy Tarreau29857942009-05-10 09:01:21 +02002451
Willy Tarreau58b458d2008-06-29 22:40:23 +02002452 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002453 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002454
Willy Tarreau85c459d2018-08-02 10:54:31 +02002455 /* stop when there's nothing left to do */
William Lallemanda7199262018-11-16 16:57:20 +01002456 if ((jobs - unstoppable_jobs) == 0)
Willy Tarreau85c459d2018-08-02 10:54:31 +02002457 break;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002458
Willy Tarreau10146c92015-04-13 20:44:19 +02002459 /* expire immediately if events are pending */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002460 exp = now_ms;
Christopher Faulet32467fe2018-01-15 12:16:34 +01002461 if (fd_cache_mask & tid_bit)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002462 activity[tid].wake_cache++;
2463 else if (active_tasks_mask & tid_bit)
2464 activity[tid].wake_tasks++;
William Lallemand1aab50b2018-06-07 09:46:01 +02002465 else if (signal_queue_len && tid == 0)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002466 activity[tid].wake_signal++;
Olivier Houchard79321b92018-07-26 17:55:11 +02002467 else {
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002468 _HA_ATOMIC_OR(&sleeping_thread_mask, tid_bit);
2469 __ha_barrier_atomic_store();
Olivier Houchard79321b92018-07-26 17:55:11 +02002470 if (active_tasks_mask & tid_bit) {
2471 activity[tid].wake_tasks++;
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002472 _HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Olivier Houchard79321b92018-07-26 17:55:11 +02002473 } else
2474 exp = next;
2475 }
Willy Tarreau10146c92015-04-13 20:44:19 +02002476
Willy Tarreau58b458d2008-06-29 22:40:23 +02002477 /* The poller will ensure it returns around <next> */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002478 cur_poller.poll(&cur_poller, exp);
Olivier Houchard79321b92018-07-26 17:55:11 +02002479 if (sleeping_thread_mask & tid_bit)
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002480 _HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01002481 fd_process_cached_events();
Emeric Brun64cc49c2017-10-03 14:46:45 +02002482
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002483 activity[tid].loops++;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002484 }
2485}
2486
Christopher Faulet1d17c102017-08-29 15:38:48 +02002487static void *run_thread_poll_loop(void *data)
2488{
2489 struct per_thread_init_fct *ptif;
2490 struct per_thread_deinit_fct *ptdf;
Christopher Fauletda18b9d2018-01-25 16:10:16 +01002491 __decl_hathreads(static HA_SPINLOCK_T start_lock);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002492
Willy Tarreaub4f7cc32019-05-03 09:27:30 +02002493 ha_set_tid((unsigned long)data);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002494 tv_update_date(-1,-1);
2495
2496 list_for_each_entry(ptif, &per_thread_init_list, list) {
2497 if (!ptif->fct()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002498 ha_alert("failed to initialize thread %u.\n", tid);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002499 exit(1);
2500 }
2501 }
2502
William Lallemandbc193052018-09-11 10:06:26 +02002503 if ((global.mode & MODE_MWORKER) && master == 0) {
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002504 HA_SPIN_LOCK(START_LOCK, &start_lock);
2505 mworker_pipe_register();
2506 HA_SPIN_UNLOCK(START_LOCK, &start_lock);
2507 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002508
2509 protocol_enable_all();
Christopher Faulet1d17c102017-08-29 15:38:48 +02002510 run_poll_loop();
2511
2512 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
2513 ptdf->fct();
2514
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002515#ifdef USE_THREAD
Olivier Houchardb23a61f2019-03-08 18:51:17 +01002516 _HA_ATOMIC_AND(&all_threads_mask, ~tid_bit);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002517 if (tid > 0)
2518 pthread_exit(NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002519#endif
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002520 return NULL;
2521}
Christopher Faulet1d17c102017-08-29 15:38:48 +02002522
Willy Tarreaue9b26022011-08-01 20:57:55 +02002523/* This is the global management task for listeners. It enables listeners waiting
2524 * for global resources when there are enough free resource, or at least once in
2525 * a while. It is designed to be called as a task.
2526 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02002527static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state)
Willy Tarreaue9b26022011-08-01 20:57:55 +02002528{
2529 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02002530 /* queue is empty, nothing to do */
2531 if (LIST_ISEMPTY(&global_listener_queue))
2532 goto out;
2533
2534 /* If there are still too many concurrent connections, let's wait for
2535 * some of them to go away. We don't need to re-arm the timer because
2536 * each of them will scan the queue anyway.
2537 */
2538 if (unlikely(actconn >= global.maxconn))
2539 goto out;
2540
2541 /* We should periodically try to enable listeners waiting for a global
2542 * resource here, because it is possible, though very unlikely, that
2543 * they have been blocked by a temporary lack of global resource such
2544 * as a file descriptor or memory and that the temporary condition has
2545 * disappeared.
2546 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002547 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02002548
2549 out:
2550 t->expire = next;
2551 task_queue(t);
2552 return t;
2553}
Willy Tarreau4f60f162007-04-08 16:39:58 +02002554
Willy Tarreaubaaee002006-06-26 02:48:02 +02002555int main(int argc, char **argv)
2556{
2557 int err, retry;
2558 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02002559 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02002560 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002561
Olivier Houchard5fa300d2018-02-03 15:15:21 +01002562 setvbuf(stdout, NULL, _IONBF, 0);
Willy Tarreau5794fb02018-11-25 18:43:29 +01002563
Willy Tarreauff9c9142019-02-07 10:39:36 +01002564 /* this can only safely be done here, though it's optimized away by
2565 * the compiler.
2566 */
2567 if (MAX_PROCS < 1 || MAX_PROCS > LONGBITS) {
2568 ha_alert("MAX_PROCS value must be between 1 and %d inclusive; "
2569 "HAProxy was built with value %d, please fix it and rebuild.\n",
2570 LONGBITS, MAX_PROCS);
2571 exit(1);
2572 }
2573
Willy Tarreaubf696402019-03-01 10:09:28 +01002574 /* take a copy of initial limits before we possibly change them */
2575 getrlimit(RLIMIT_NOFILE, &limit);
2576 rlim_fd_cur_at_boot = limit.rlim_cur;
2577 rlim_fd_max_at_boot = limit.rlim_max;
2578
Willy Tarreau5794fb02018-11-25 18:43:29 +01002579 /* process all initcalls in order of potential dependency */
2580 RUN_INITCALLS(STG_PREPARE);
2581 RUN_INITCALLS(STG_LOCK);
2582 RUN_INITCALLS(STG_ALLOC);
2583 RUN_INITCALLS(STG_POOL);
2584 RUN_INITCALLS(STG_REGISTER);
2585 RUN_INITCALLS(STG_INIT);
2586
Emeric Bruncf20bf12010-10-22 16:06:11 +02002587 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002588 signal_register_fct(SIGQUIT, dump, SIGQUIT);
2589 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
2590 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
William Lallemand73b85e72017-06-01 17:38:51 +02002591 signal_register_fct(SIGUSR2, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002592
Willy Tarreaue437c442010-03-17 18:02:46 +01002593 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
2594 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
2595 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002596 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002597 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002598
Willy Tarreaudc23a922011-02-16 11:10:36 +01002599 /* ulimits */
2600 if (!global.rlimit_nofile)
2601 global.rlimit_nofile = global.maxsock;
2602
2603 if (global.rlimit_nofile) {
Willy Tarreaue5cfdac2019-03-01 10:32:05 +01002604 limit.rlim_cur = global.rlimit_nofile;
2605 limit.rlim_max = MAX(rlim_fd_max_at_boot, limit.rlim_cur);
2606
Willy Tarreaudc23a922011-02-16 11:10:36 +01002607 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02002608 /* try to set it to the max possible at least */
2609 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02002610 limit.rlim_cur = limit.rlim_max;
2611 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
2612 getrlimit(RLIMIT_NOFILE, &limit);
2613
Christopher Faulet767a84b2017-11-24 16:50:31 +01002614 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 +02002615 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002616 }
2617 }
2618
2619 if (global.rlimit_memmax) {
2620 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01002621 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002622#ifdef RLIMIT_AS
2623 if (setrlimit(RLIMIT_AS, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002624 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2625 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002626 }
2627#else
2628 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002629 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2630 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002631 }
2632#endif
2633 }
2634
Olivier Houchardf73629d2017-04-05 22:33:04 +02002635 if (old_unixsocket) {
William Lallemand85b0bd92017-06-01 17:38:53 +02002636 if (strcmp("/dev/null", old_unixsocket) != 0) {
2637 if (get_old_sockets(old_unixsocket) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002638 ha_alert("Failed to get the sockets from the old process!\n");
William Lallemand85b0bd92017-06-01 17:38:53 +02002639 if (!(global.mode & MODE_MWORKER))
2640 exit(1);
2641 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002642 }
2643 }
William Lallemand85b0bd92017-06-01 17:38:53 +02002644 get_cur_unixsocket();
2645
Willy Tarreaubaaee002006-06-26 02:48:02 +02002646 /* We will loop at most 100 times with 10 ms delay each time.
2647 * That's at most 1 second. We only send a signal to old pids
2648 * if we cannot grab at least one port.
2649 */
2650 retry = MAX_START_RETRIES;
2651 err = ERR_NONE;
2652 while (retry >= 0) {
2653 struct timeval w;
2654 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01002655 /* exit the loop on no error or fatal error */
2656 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002657 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02002658 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002659 break;
2660
2661 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
2662 * listening sockets. So on those platforms, it would be wiser to
2663 * simply send SIGUSR1, which will not be undoable.
2664 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02002665 if (tell_old_pids(SIGTTOU) == 0) {
2666 /* no need to wait if we can't contact old pids */
2667 retry = 0;
2668 continue;
2669 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002670 /* give some time to old processes to stop listening */
2671 w.tv_sec = 0;
2672 w.tv_usec = 10*1000;
2673 select(0, NULL, NULL, NULL, &w);
2674 retry--;
2675 }
2676
2677 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01002678 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02002679 if (retry != MAX_START_RETRIES && nb_oldpids) {
2680 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002681 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02002682 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002683 exit(1);
2684 }
2685
William Lallemand944e6192018-11-21 15:48:31 +01002686 if (!(global.mode & MODE_MWORKER_WAIT) && listeners == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002687 ha_alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002688 /* Note: we don't have to send anything to the old pids because we
2689 * never stopped them. */
2690 exit(1);
2691 }
2692
Emeric Bruncf20bf12010-10-22 16:06:11 +02002693 err = protocol_bind_all(errmsg, sizeof(errmsg));
2694 if ((err & ~ERR_WARN) != ERR_NONE) {
2695 if ((err & ERR_ALERT) || (err & ERR_WARN))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002696 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002697
Christopher Faulet767a84b2017-11-24 16:50:31 +01002698 ha_alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002699 protocol_unbind_all(); /* cleanup everything we can */
2700 if (nb_oldpids)
2701 tell_old_pids(SIGTTIN);
2702 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002703 } else if (err & ERR_WARN) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002704 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02002705 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002706 /* Ok, all listener should now be bound, close any leftover sockets
2707 * the previous process gave us, we don't need them anymore
2708 */
2709 while (xfer_sock_list != NULL) {
2710 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
2711 close(xfer_sock_list->fd);
2712 free(xfer_sock_list->iface);
2713 free(xfer_sock_list->namespace);
2714 free(xfer_sock_list);
2715 xfer_sock_list = tmpxfer;
2716 }
Willy Tarreaudd815982007-10-16 12:25:14 +02002717
Willy Tarreaubaaee002006-06-26 02:48:02 +02002718 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002719 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
2720 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002721
Willy Tarreaubaaee002006-06-26 02:48:02 +02002722 /* MODE_QUIET can inhibit alerts and warnings below this line */
2723
PiBa-NL149a81a2017-12-25 21:03:31 +01002724 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL) {
2725 /* either stdin/out/err are already closed or should stay as they are. */
2726 if ((global.mode & MODE_DAEMON)) {
2727 /* daemon mode re-executing, stdin/stdout/stderr are already closed so keep quiet */
2728 global.mode &= ~MODE_VERBOSE;
2729 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2730 }
2731 } else {
2732 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
2733 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01002734 stdio_quiet(-1);
PiBa-NL149a81a2017-12-25 21:03:31 +01002735 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002736 }
2737
2738 /* open log & pid files before the chroot */
William Lallemand80293002017-11-06 11:00:03 +01002739 if ((global.mode & MODE_DAEMON || global.mode & MODE_MWORKER) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002740 unlink(global.pidfile);
2741 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
2742 if (pidfd < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002743 ha_alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002744 if (nb_oldpids)
2745 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02002746 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002747 exit(1);
2748 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002749 }
2750
Willy Tarreaub38651a2007-03-24 17:24:39 +01002751 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002752 ha_alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
2753 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002754 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01002755 exit(1);
2756 }
2757
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002758 /* If the user is not root, we'll still let him try the configuration
2759 * but we inform him that unexpected behaviour may occur.
2760 */
2761 if ((global.last_checks & LSTCHK_NETADM) && getuid())
Christopher Faulet767a84b2017-11-24 16:50:31 +01002762 ha_warning("[%s.main()] Some options which require full privileges"
2763 " might not work well.\n"
2764 "", argv[0]);
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002765
William Lallemand095ba4c2017-06-01 17:38:50 +02002766 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2767
2768 /* chroot if needed */
2769 if (global.chroot != NULL) {
2770 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002771 ha_alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02002772 if (nb_oldpids)
2773 tell_old_pids(SIGTTIN);
2774 protocol_unbind_all();
2775 exit(1);
2776 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002777 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002778 }
2779
William Lallemand944e6192018-11-21 15:48:31 +01002780 if (nb_oldpids && !(global.mode & MODE_MWORKER_WAIT))
Willy Tarreaubb545b42010-08-25 12:58:59 +02002781 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002782
William Lallemand27edc4b2019-05-07 17:49:33 +02002783 /* send a SIGTERM to workers who have a too high reloads number */
2784 if ((global.mode & MODE_MWORKER) && !(global.mode & MODE_MWORKER_WAIT))
2785 mworker_kill_max_reloads(SIGTERM);
2786
William Lallemand8a361b52017-06-20 11:20:33 +02002787 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
2788 nb_oldpids = 0;
2789 free(oldpids);
2790 oldpids = NULL;
2791 }
2792
2793
Willy Tarreaubaaee002006-06-26 02:48:02 +02002794 /* Note that any error at this stage will be fatal because we will not
2795 * be able to restart the old pids.
2796 */
2797
William Lallemand095ba4c2017-06-01 17:38:50 +02002798 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2799 /* setgid / setuid */
2800 if (global.gid) {
2801 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01002802 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2803 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002804
2805 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002806 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02002807 protocol_unbind_all();
2808 exit(1);
2809 }
2810 }
Michael Schererab012dd2013-01-12 18:35:19 +01002811
William Lallemand095ba4c2017-06-01 17:38:50 +02002812 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002813 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Michael Schererab012dd2013-01-12 18:35:19 +01002814 protocol_unbind_all();
2815 exit(1);
2816 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002817 }
Willy Tarreau636848a2019-04-15 19:38:50 +02002818
2819 /* try our best to re-enable core dumps depending on system capabilities.
2820 * What is addressed here :
2821 * - remove file size limits
2822 * - remove core size limits
2823 * - mark the process dumpable again if it lost it due to user/group
2824 */
2825 if (global.tune.options & GTUNE_SET_DUMPABLE) {
2826 limit.rlim_cur = limit.rlim_max = RLIM_INFINITY;
2827
2828#if defined(RLIMIT_FSIZE)
2829 if (setrlimit(RLIMIT_FSIZE, &limit) == -1)
2830 ha_warning("[%s.main()] Failed to set the raise the maximum file size.\n", argv[0]);
2831#endif
2832
2833#if defined(RLIMIT_CORE)
2834 if (setrlimit(RLIMIT_CORE, &limit) == -1)
2835 ha_warning("[%s.main()] Failed to set the raise the core dump size.\n", argv[0]);
2836#endif
2837
2838#if defined(USE_PRCTL)
2839 if (prctl(PR_SET_DUMPABLE, 1, 0, 0, 0) == -1)
2840 ha_warning("[%s.main()] Failed to set the dumpable flag, no core will be dumped.\n", argv[0]);
2841#endif
2842 }
2843
Willy Tarreaubaaee002006-06-26 02:48:02 +02002844 /* check ulimits */
2845 limit.rlim_cur = limit.rlim_max = 0;
2846 getrlimit(RLIMIT_NOFILE, &limit);
2847 if (limit.rlim_cur < global.maxsock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002848 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",
2849 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002850 }
2851
William Lallemand944e6192018-11-21 15:48:31 +01002852 if (global.mode & (MODE_DAEMON | MODE_MWORKER | MODE_MWORKER_WAIT)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002853 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002854 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002855 int ret = 0;
2856 int proc;
William Lallemande1340412017-12-28 16:09:36 +01002857 int devnullfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002858
William Lallemand095ba4c2017-06-01 17:38:50 +02002859 /*
2860 * if daemon + mworker: must fork here to let a master
2861 * process live in background before forking children
2862 */
William Lallemand73b85e72017-06-01 17:38:51 +02002863
2864 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)
2865 && (global.mode & MODE_MWORKER)
2866 && (global.mode & MODE_DAEMON)) {
William Lallemand095ba4c2017-06-01 17:38:50 +02002867 ret = fork();
2868 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002869 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002870 protocol_unbind_all();
2871 exit(1); /* there has been an error */
William Lallemandbfd8eb52018-07-04 15:31:23 +02002872 } else if (ret > 0) { /* parent leave to daemonize */
William Lallemand095ba4c2017-06-01 17:38:50 +02002873 exit(0);
William Lallemandbfd8eb52018-07-04 15:31:23 +02002874 } else /* change the process group ID in the child (master process) */
2875 setsid();
William Lallemand095ba4c2017-06-01 17:38:50 +02002876 }
William Lallemande20b6a62017-06-01 17:38:55 +02002877
William Lallemande20b6a62017-06-01 17:38:55 +02002878
William Lallemanddeed7802017-11-06 11:00:04 +01002879 /* if in master-worker mode, write the PID of the father */
2880 if (global.mode & MODE_MWORKER) {
2881 char pidstr[100];
2882 snprintf(pidstr, sizeof(pidstr), "%d\n", getpid());
Willy Tarreau46ec48b2018-01-23 19:20:19 +01002883 if (pidfd >= 0)
2884 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
William Lallemanddeed7802017-11-06 11:00:04 +01002885 }
2886
Willy Tarreaubaaee002006-06-26 02:48:02 +02002887 /* the father launches the required number of processes */
William Lallemand944e6192018-11-21 15:48:31 +01002888 if (!(global.mode & MODE_MWORKER_WAIT)) {
William Lallemand9a1ee7a2019-04-01 11:30:02 +02002889 if (global.mode & MODE_MWORKER)
2890 mworker_ext_launch_all();
William Lallemand944e6192018-11-21 15:48:31 +01002891 for (proc = 0; proc < global.nbproc; proc++) {
2892 ret = fork();
2893 if (ret < 0) {
2894 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
2895 protocol_unbind_all();
2896 exit(1); /* there has been an error */
2897 }
2898 else if (ret == 0) /* child breaks here */
2899 break;
William Lallemand944e6192018-11-21 15:48:31 +01002900 if (pidfd >= 0 && !(global.mode & MODE_MWORKER)) {
2901 char pidstr[100];
2902 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
2903 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
2904 }
2905 if (global.mode & MODE_MWORKER) {
2906 struct mworker_proc *child;
William Lallemandce83b4a2018-10-26 14:47:30 +02002907
William Lallemand220567e2018-11-21 18:04:53 +01002908 ha_notice("New worker #%d (%d) forked\n", relative_pid, ret);
William Lallemand944e6192018-11-21 15:48:31 +01002909 /* find the right mworker_proc */
2910 list_for_each_entry(child, &proc_list, list) {
2911 if (child->relative_pid == relative_pid &&
William Lallemand8f7069a2019-04-12 16:09:23 +02002912 child->reloads == 0 && child->options & PROC_O_TYPE_WORKER) {
William Lallemand944e6192018-11-21 15:48:31 +01002913 child->timestamp = now.tv_sec;
2914 child->pid = ret;
2915 break;
2916 }
William Lallemandce83b4a2018-10-26 14:47:30 +02002917 }
2918 }
William Lallemandbc193052018-09-11 10:06:26 +02002919
William Lallemand944e6192018-11-21 15:48:31 +01002920 relative_pid++; /* each child will get a different one */
2921 pid_bit <<= 1;
2922 }
2923 } else {
2924 /* wait mode */
2925 global.nbproc = 1;
2926 proc = 1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002927 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002928
2929#ifdef USE_CPU_AFFINITY
2930 if (proc < global.nbproc && /* child */
Willy Tarreauff9c9142019-02-07 10:39:36 +01002931 proc < MAX_PROCS && /* only the first 32/64 processes may be pinned */
Christopher Fauletcb6a9452017-11-22 16:50:41 +01002932 global.cpu_map.proc[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002933#ifdef __FreeBSD__
Olivier Houchard97148f62017-08-16 17:29:11 +02002934 {
2935 cpuset_t cpuset;
2936 int i;
Christopher Fauletcb6a9452017-11-22 16:50:41 +01002937 unsigned long cpu_map = global.cpu_map.proc[proc];
Olivier Houchard97148f62017-08-16 17:29:11 +02002938
2939 CPU_ZERO(&cpuset);
2940 while ((i = ffsl(cpu_map)) > 0) {
2941 CPU_SET(i - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01002942 cpu_map &= ~(1UL << (i - 1));
Olivier Houchard97148f62017-08-16 17:29:11 +02002943 }
2944 ret = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset), &cpuset);
2945 }
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002946#else
Christopher Fauletcb6a9452017-11-22 16:50:41 +01002947 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map.proc[proc]);
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002948#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002949#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02002950 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02002951 if (pidfd >= 0) {
2952 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
2953 close(pidfd);
2954 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02002955
2956 /* We won't ever use this anymore */
Willy Tarreaud137dd32010-08-25 12:49:05 +02002957 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002958
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002959 if (proc == global.nbproc) {
William Lallemand944e6192018-11-21 15:48:31 +01002960 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
PiBa-NLbaf6ea42017-11-28 23:26:08 +01002961
2962 if ((!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
2963 (global.mode & MODE_DAEMON)) {
2964 /* detach from the tty, this is required to properly daemonize. */
William Lallemande1340412017-12-28 16:09:36 +01002965 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL))
2966 stdio_quiet(-1);
2967
PiBa-NLbaf6ea42017-11-28 23:26:08 +01002968 global.mode &= ~MODE_VERBOSE;
2969 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
PiBa-NLbaf6ea42017-11-28 23:26:08 +01002970 }
2971
William Lallemandb3f2be32018-09-11 10:06:18 +02002972 mworker_loop();
William Lallemand1499b9b2017-06-07 15:04:47 +02002973 /* should never get there */
2974 exit(EXIT_FAILURE);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002975 }
William Lallemandcf4e4962017-06-08 19:05:48 +02002976#if defined(USE_OPENSSL) && !defined(OPENSSL_NO_DH)
Grant Zhang872f9c22017-01-21 01:10:18 +00002977 ssl_free_dh();
2978#endif
William Lallemand1499b9b2017-06-07 15:04:47 +02002979 exit(0); /* parent must leave */
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002980 }
2981
William Lallemandcb11fd22017-06-01 17:38:52 +02002982 /* child must never use the atexit function */
2983 atexit_flag = 0;
2984
William Lallemandbc193052018-09-11 10:06:26 +02002985 /* close useless master sockets */
2986 if (global.mode & MODE_MWORKER) {
2987 struct mworker_proc *child, *it;
2988 master = 0;
2989
William Lallemand309dc9a2018-10-26 14:47:45 +02002990 mworker_cli_proxy_stop();
2991
William Lallemandbc193052018-09-11 10:06:26 +02002992 /* free proc struct of other processes */
2993 list_for_each_entry_safe(child, it, &proc_list, list) {
William Lallemandce83b4a2018-10-26 14:47:30 +02002994 /* close the FD of the master side for all
2995 * workers, we don't need to close the worker
2996 * side of other workers since it's done with
2997 * the bind_proc */
Tim Duesterhus742e0f92018-11-25 20:03:39 +01002998 if (child->ipc_fd[0] >= 0)
2999 close(child->ipc_fd[0]);
William Lallemandce83b4a2018-10-26 14:47:30 +02003000 if (child->relative_pid == relative_pid &&
3001 child->reloads == 0) {
3002 /* keep this struct if this is our pid */
3003 proc_self = child;
William Lallemandbc193052018-09-11 10:06:26 +02003004 continue;
William Lallemandce83b4a2018-10-26 14:47:30 +02003005 }
William Lallemandbc193052018-09-11 10:06:26 +02003006 LIST_DEL(&child->list);
3007 free(child);
3008 }
3009 }
Willy Tarreau1605c7a2018-01-23 19:01:49 +01003010
William Lallemande1340412017-12-28 16:09:36 +01003011 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
3012 devnullfd = open("/dev/null", O_RDWR, 0);
3013 if (devnullfd < 0) {
3014 ha_alert("Cannot open /dev/null\n");
3015 exit(EXIT_FAILURE);
3016 }
3017 }
3018
William Lallemand095ba4c2017-06-01 17:38:50 +02003019 /* Must chroot and setgid/setuid in the children */
3020 /* chroot if needed */
3021 if (global.chroot != NULL) {
3022 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003023 ha_alert("[%s.main()] Cannot chroot1(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02003024 if (nb_oldpids)
3025 tell_old_pids(SIGTTIN);
3026 protocol_unbind_all();
3027 exit(1);
3028 }
3029 }
3030
3031 free(global.chroot);
3032 global.chroot = NULL;
3033
3034 /* setgid / setuid */
3035 if (global.gid) {
3036 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01003037 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
3038 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02003039
3040 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003041 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003042 protocol_unbind_all();
3043 exit(1);
3044 }
3045 }
3046
3047 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003048 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003049 protocol_unbind_all();
3050 exit(1);
3051 }
3052
William Lallemand7f80eb22017-05-26 18:19:55 +02003053 /* pass through every cli socket, and check if it's bound to
3054 * the current process and if it exposes listeners sockets.
3055 * Caution: the GTUNE_SOCKET_TRANSFER is now set after the fork.
3056 * */
3057
3058 if (global.stats_fe) {
3059 struct bind_conf *bind_conf;
3060
3061 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
3062 if (bind_conf->level & ACCESS_FD_LISTENERS) {
3063 if (!bind_conf->bind_proc || bind_conf->bind_proc & (1UL << proc)) {
3064 global.tune.options |= GTUNE_SOCKET_TRANSFER;
3065 break;
3066 }
3067 }
3068 }
3069 }
3070
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003071 /* we might have to unbind some proxies from some processes */
Olivier Houchardfbc74e82017-11-24 16:54:05 +01003072 px = proxies_list;
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003073 while (px != NULL) {
3074 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02003075 if (!(px->bind_proc & (1UL << proc))) {
3076 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
3077 zombify_proxy(px);
3078 else
3079 stop_proxy(px);
3080 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003081 }
3082 px = px->next;
3083 }
3084
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003085 /* we might have to unbind some peers sections from some processes */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02003086 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003087 if (!curpeers->peers_fe)
3088 continue;
3089
3090 if (curpeers->peers_fe->bind_proc & (1UL << proc))
3091 continue;
3092
3093 stop_proxy(curpeers->peers_fe);
3094 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02003095 signal_unregister_handler(curpeers->sighandler);
Olivier Houchard3f795f72019-04-17 22:51:06 +02003096 task_destroy(curpeers->sync_task);
Willy Tarreau47c8c022015-09-28 16:39:25 +02003097 curpeers->sync_task = NULL;
Olivier Houchard3f795f72019-04-17 22:51:06 +02003098 task_destroy(curpeers->peers_fe->task);
Willy Tarreau47c8c022015-09-28 16:39:25 +02003099 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003100 curpeers->peers_fe = NULL;
3101 }
3102
William Lallemand2e8fad92018-11-13 16:18:23 +01003103 /*
3104 * This is only done in daemon mode because we might want the
3105 * logs on stdout in mworker mode. If we're NOT in QUIET mode,
3106 * we should now close the 3 first FDs to ensure that we can
3107 * detach from the TTY. We MUST NOT do it in other cases since
3108 * it would have already be done, and 0-2 would have been
3109 * affected to listening sockets
Willy Tarreaubaaee002006-06-26 02:48:02 +02003110 */
William Lallemand2e8fad92018-11-13 16:18:23 +01003111 if ((global.mode & MODE_DAEMON) &&
3112 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02003113 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01003114 stdio_quiet(devnullfd);
Willy Tarreau106cb762008-11-16 07:40:34 +01003115 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003116 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
3117 }
3118 pid = getpid(); /* update child's pid */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003119 if (!(global.mode & MODE_MWORKER)) /* in mworker mode we don't want a new pgid for the children */
3120 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02003121 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02003122 }
3123
Christopher Faulete3a5e352017-10-24 13:53:54 +02003124 global.mode &= ~MODE_STARTING;
Willy Tarreau4f60f162007-04-08 16:39:58 +02003125 /*
3126 * That's it : the central polling loop. Run until we stop.
3127 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02003128#ifdef USE_THREAD
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003129 {
William Lallemand1aab50b2018-06-07 09:46:01 +02003130 sigset_t blocked_sig, old_sig;
Willy Tarreauc40efc12019-05-03 09:22:44 +02003131 int i;
3132
3133 threads = calloc(global.nbthread, sizeof(*threads));
3134 if (!threads) {
3135 ha_alert("Cannot allocate memory for threads.\n");
3136 protocol_unbind_all();
3137 exit(1);
3138 }
Christopher Faulet1d17c102017-08-29 15:38:48 +02003139
William Lallemand1aab50b2018-06-07 09:46:01 +02003140 /* ensure the signals will be blocked in every thread */
3141 sigfillset(&blocked_sig);
3142 sigdelset(&blocked_sig, SIGPROF);
3143 sigdelset(&blocked_sig, SIGBUS);
3144 sigdelset(&blocked_sig, SIGFPE);
3145 sigdelset(&blocked_sig, SIGILL);
3146 sigdelset(&blocked_sig, SIGSEGV);
3147 pthread_sigmask(SIG_SETMASK, &blocked_sig, &old_sig);
3148
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003149 /* Create nbthread-1 thread. The first thread is the current process */
3150 threads[0] = pthread_self();
3151 for (i = 1; i < global.nbthread; i++)
Willy Tarreaub4f7cc32019-05-03 09:27:30 +02003152 pthread_create(&threads[i], NULL, &run_thread_poll_loop, (void *)(long)i);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003153
Christopher Faulet62519022017-10-16 15:49:32 +02003154#ifdef USE_CPU_AFFINITY
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003155 /* Now the CPU affinity for all threads */
3156 for (i = 0; i < global.nbthread; i++) {
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003157 if (global.cpu_map.proc[relative_pid-1])
Willy Tarreau81492c92019-05-03 09:41:23 +02003158 global.cpu_map.thread[i] &= global.cpu_map.proc[relative_pid-1];
Christopher Faulet62519022017-10-16 15:49:32 +02003159
Willy Tarreau421f02e2018-01-20 18:19:22 +01003160 if (i < MAX_THREADS && /* only the first 32/64 threads may be pinned */
Willy Tarreau81492c92019-05-03 09:41:23 +02003161 global.cpu_map.thread[i]) {/* only do this if the thread has a THREAD map */
Olivier Houchard829aa242017-12-01 18:19:43 +01003162#if defined(__FreeBSD__) || defined(__NetBSD__)
3163 cpuset_t cpuset;
3164#else
3165 cpu_set_t cpuset;
3166#endif
3167 int j;
Willy Tarreau81492c92019-05-03 09:41:23 +02003168 unsigned long cpu_map = global.cpu_map.thread[i];
Olivier Houchard829aa242017-12-01 18:19:43 +01003169
3170 CPU_ZERO(&cpuset);
3171
3172 while ((j = ffsl(cpu_map)) > 0) {
3173 CPU_SET(j - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003174 cpu_map &= ~(1UL << (j - 1));
Olivier Houchard829aa242017-12-01 18:19:43 +01003175 }
Christopher Faulet62519022017-10-16 15:49:32 +02003176 pthread_setaffinity_np(threads[i],
Olivier Houchard829aa242017-12-01 18:19:43 +01003177 sizeof(cpuset), &cpuset);
3178 }
Christopher Faulet1d17c102017-08-29 15:38:48 +02003179 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003180#endif /* !USE_CPU_AFFINITY */
3181
William Lallemand1aab50b2018-06-07 09:46:01 +02003182 /* when multithreading we need to let only the thread 0 handle the signals */
William Lallemandd3801c12018-09-11 10:06:23 +02003183 haproxy_unblock_signals();
William Lallemand1aab50b2018-06-07 09:46:01 +02003184
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003185 /* Finally, start the poll loop for the first thread */
Willy Tarreaub4f7cc32019-05-03 09:27:30 +02003186 run_thread_poll_loop(0);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003187
3188 /* Wait the end of other threads */
3189 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003190 pthread_join(threads[i], NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003191
Christopher Faulet1d17c102017-08-29 15:38:48 +02003192 free(threads);
Willy Tarreauc40efc12019-05-03 09:22:44 +02003193 threads = NULL;
Christopher Faulet1d17c102017-08-29 15:38:48 +02003194
Christopher Fauletb79a94c2017-05-30 15:34:30 +02003195#if defined(DEBUG_THREAD) || defined(DEBUG_FULL)
3196 show_lock_stats();
3197#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003198 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003199#else /* ! USE_THREAD */
William Lallemandd3801c12018-09-11 10:06:23 +02003200 haproxy_unblock_signals();
Willy Tarreaub4f7cc32019-05-03 09:27:30 +02003201 run_thread_poll_loop(0);
Christopher Faulet62519022017-10-16 15:49:32 +02003202#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003203
3204 /* Do some cleanup */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003205 deinit();
Christopher Faulet1d17c102017-08-29 15:38:48 +02003206
Willy Tarreaubaaee002006-06-26 02:48:02 +02003207 exit(0);
3208}
3209
3210
3211/*
3212 * Local variables:
3213 * c-indent-level: 8
3214 * c-basic-offset: 8
3215 * End:
3216 */