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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau65e94d12018-08-02 18:12:50 +02003 * Copyright 2000-2018 Willy Tarreau <willy@haproxy.org>.
Willy Tarreaubaaee002006-06-26 02:48:02 +02004 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 *
Lukas Tribus23953682017-04-28 13:24:30 +000010 * Please refer to RFC7230 - RFC7235 informations about HTTP protocol, and
11 * RFC6265 for informations about cookies usage. More generally, the IETF HTTP
Willy Tarreaubaaee002006-06-26 02:48:02 +020012 * Working Group's web site should be consulted for protocol related changes :
13 *
14 * http://ftp.ics.uci.edu/pub/ietf/http/
15 *
16 * Pending bugs (may be not fixed because never reproduced) :
17 * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes
18 * the proxy to terminate (no core) if the client breaks the connection during
19 * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to
20 * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be
21 * related to missing setsid() (fixed in 1.1.15)
22 * - a proxy with an invalid config will prevent the startup even if disabled.
23 *
24 * ChangeLog has moved to the CHANGELOG file.
25 *
Willy Tarreaubaaee002006-06-26 02:48:02 +020026 */
27
David Carlier7ece0962015-12-08 21:43:09 +000028#define _GNU_SOURCE
Willy Tarreaubaaee002006-06-26 02:48:02 +020029#include <stdio.h>
30#include <stdlib.h>
31#include <unistd.h>
32#include <string.h>
33#include <ctype.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020034#include <dirent.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020035#include <sys/stat.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020036#include <sys/time.h>
37#include <sys/types.h>
38#include <sys/socket.h>
39#include <netinet/tcp.h>
40#include <netinet/in.h>
41#include <arpa/inet.h>
Olivier Houchardf73629d2017-04-05 22:33:04 +020042#include <net/if.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020043#include <netdb.h>
44#include <fcntl.h>
45#include <errno.h>
46#include <signal.h>
47#include <stdarg.h>
48#include <sys/resource.h>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010049#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020050#include <time.h>
51#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010052#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010053#ifdef USE_CPU_AFFINITY
Willy Tarreaufc6c0322012-11-16 16:12:27 +010054#include <sched.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000055#if defined(__FreeBSD__) || defined(__DragonFly__)
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020056#include <sys/param.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000057#ifdef __FreeBSD__
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020058#include <sys/cpuset.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000059#endif
David Carlier6d5c8412017-11-29 11:02:32 +000060#include <pthread_np.h>
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020061#endif
Willy Tarreaufc6c0322012-11-16 16:12:27 +010062#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020063
64#ifdef DEBUG_FULL
65#include <assert.h>
66#endif
Tim Duesterhusd6942c82017-11-20 15:58:35 +010067#if defined(USE_SYSTEMD)
68#include <systemd/sd-daemon.h>
69#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020070
Willy Tarreau2dd0d472006-06-29 17:53:05 +020071#include <common/base64.h>
72#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020073#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020074#include <common/compat.h>
75#include <common/config.h>
76#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010077#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020078#include <common/memory.h>
79#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010080#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020081#include <common/regex.h>
82#include <common/standard.h>
83#include <common/time.h>
84#include <common/uri_auth.h>
85#include <common/version.h>
Christopher Fauletbe0faa22017-08-29 15:37:10 +020086#include <common/hathreads.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020087
88#include <types/capture.h>
William Lallemandce83b4a2018-10-26 14:47:30 +020089#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020090#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020091#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090092#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020093#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020094
Willy Tarreau0fc45a72007-06-17 00:36:03 +020095#include <proto/acl.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020096#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020097#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020098#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020099#include <proto/channel.h>
William Lallemandce83b4a2018-10-26 14:47:30 +0200100#include <proto/cli.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200101#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200102#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200103#include <proto/filters.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +0200104#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100105#include <proto/hlua.h>
Willy Tarreau61c112a2018-10-02 16:43:32 +0200106#include <proto/http_rules.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200107#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200108#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100109#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200110#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +0100111#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200112#include <proto/proxy.h>
113#include <proto/queue.h>
114#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200115#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200116#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200117#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200118#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200119#include <proto/dns.h>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100120#include <proto/vars.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200121#ifdef USE_OPENSSL
Grant Zhang872f9c22017-01-21 01:10:18 +0000122#include <proto/ssl_sock.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200123#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200124
Willy Tarreau477ecd82010-01-03 21:12:30 +0100125/* list of config files */
126static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200127int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100128int relative_pid = 1; /* process id starting at 1 */
Willy Tarreau387bd4f2017-11-10 19:08:14 +0100129unsigned long pid_bit = 1; /* bit corresponding to the process id */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200130
Olivier Houchard79321b92018-07-26 17:55:11 +0200131volatile unsigned long sleeping_thread_mask; /* Threads that are about to sleep in poll() */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200132/* global options */
133struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100134 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100135 .nbproc = 1,
Christopher Fauletbe0faa22017-08-29 15:37:10 +0200136 .nbthread = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200137 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200138 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100139 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100140 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100141 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200142 .unix_bind = {
143 .ux = {
144 .uid = -1,
145 .gid = -1,
146 .mode = 0,
147 }
148 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200149 .tune = {
150 .bufsize = BUFSIZE,
Willy Tarreau27097842015-09-28 13:53:23 +0200151 .maxrewrite = -1,
Willy Tarreau43961d52010-10-04 20:39:20 +0200152 .chksize = BUFSIZE,
Willy Tarreaua24adf02014-11-27 01:11:56 +0100153 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200154 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200155#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100156 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200157#endif
William Lallemandf3747832012-11-09 12:33:10 +0100158 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100159#ifdef DEFAULT_IDLE_TIMER
160 .idle_timer = DEFAULT_IDLE_TIMER,
161#else
162 .idle_timer = 1000, /* 1 second */
163#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200164 },
Emeric Brun76d88952012-10-05 15:47:31 +0200165#ifdef USE_OPENSSL
166#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200167 .maxsslconn = DEFAULT_MAXSSLCONN,
168#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200169#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200170 /* others NULL OK */
171};
172
Willy Tarreaud80cb4e2018-01-20 19:30:13 +0100173struct activity activity[MAX_THREADS] __attribute__((aligned(64))) = { };
174
Willy Tarreaubaaee002006-06-26 02:48:02 +0200175/*********************************************************************/
176
177int stopping; /* non zero means stopping in progress */
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100178int killed; /* non zero means a hard-stop is triggered */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200179int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreau199ad242018-11-05 16:31:22 +0100180int active_peers = 0; /* number of active peers (connection attempts and connected) */
Willy Tarreau2d372c22018-11-05 17:12:27 +0100181int connected_peers = 0; /* number of connected peers (verified ones) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200182
183/* Here we store informations about the pids of the processes we may pause
184 * or kill. We will send them a signal every 10 ms until we can bind to all
185 * our ports. With 200 retries, that's about 2 seconds.
186 */
187#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200188static int *oldpids = NULL;
189static int oldpids_sig; /* use USR1 or TERM */
190
Olivier Houchardf73629d2017-04-05 22:33:04 +0200191/* Path to the unix socket we use to retrieve listener sockets from the old process */
192static const char *old_unixsocket;
193
William Lallemand85b0bd92017-06-01 17:38:53 +0200194static char *cur_unixsocket = NULL;
195
William Lallemandcb11fd22017-06-01 17:38:52 +0200196int atexit_flag = 0;
197
William Lallemand91723742018-11-06 17:37:14 +0100198static int exitcode = -1;
199
Willy Tarreaubb545b42010-08-25 12:58:59 +0200200int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200201const int zero = 0;
202const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200203const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200204
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100205char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200206char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200207
Willy Tarreau89efaed2013-12-13 15:14:55 +0100208/* used from everywhere just to drain results we don't want to read and which
209 * recent versions of gcc increasingly and annoyingly complain about.
210 */
211int shut_your_big_mouth_gcc_int = 0;
212
William Lallemand73b85e72017-06-01 17:38:51 +0200213int *children = NULL; /* store PIDs of children in master workers mode */
214
William Lallemand73b85e72017-06-01 17:38:51 +0200215static char **next_argv = NULL;
216
William Lallemandbc193052018-09-11 10:06:26 +0200217struct list proc_list = LIST_HEAD_INIT(proc_list);
218
219int master = 0; /* 1 if in master, 0 if in child */
220
William Lallemandbc193052018-09-11 10:06:26 +0200221struct mworker_proc *proc_self;
222
Willy Tarreau08ceb102011-07-24 22:58:00 +0200223/* list of the temporarily limited listeners because of lack of resource */
224struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200225struct task *global_listener_queue_task;
Olivier Houchard9f6af332018-05-25 14:04:04 +0200226static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200227
William Lallemandb3f2be32018-09-11 10:06:18 +0200228static void *run_thread_poll_loop(void *data);
229
Willy Tarreauff055502014-04-28 22:27:06 +0200230/* bitfield of a few warnings to emit just once (WARN_*) */
231unsigned int warned = 0;
232
William Lallemande7361152018-10-26 14:47:36 +0200233/* master CLI configuration (-S flag) */
234struct list mworker_cli_conf = LIST_HEAD_INIT(mworker_cli_conf);
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100235
236/* These are strings to be reported in the output of "haproxy -vv". They may
237 * either be constants (in which case must_free must be zero) or dynamically
238 * allocated strings to pass to free() on exit, and in this case must_free
239 * must be non-zero.
240 */
241struct list build_opts_list = LIST_HEAD_INIT(build_opts_list);
242struct build_opts_str {
243 struct list list;
244 const char *str;
245 int must_free;
246};
247
Willy Tarreaue6945732016-12-21 19:57:00 +0100248/* These functions are called just after the point where the program exits
249 * after a config validity check, so they are generally suited for resource
250 * allocation and slow initializations that should be skipped during basic
251 * config checks. The functions must return 0 on success, or a combination
252 * of ERR_* flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause
253 * and immediate exit, so the function must have emitted any useful error.
254 */
255struct list post_check_list = LIST_HEAD_INIT(post_check_list);
256struct post_check_fct {
257 struct list list;
258 int (*fct)();
259};
260
Willy Tarreau05554e62016-12-21 20:46:26 +0100261/* These functions are called when freeing the global sections at the end
262 * of deinit, after everything is stopped. They don't return anything, and
263 * they work in best effort mode as their sole goal is to make valgrind
264 * mostly happy.
265 */
266struct list post_deinit_list = LIST_HEAD_INIT(post_deinit_list);
267struct post_deinit_fct {
268 struct list list;
269 void (*fct)();
270};
271
Christopher Faulet415f6112017-07-25 16:52:58 +0200272/* These functions are called for each thread just after the thread creation
273 * and before running the scheduler. They should be used to do per-thread
274 * initializations. They must return 0 if an error occurred. */
275struct list per_thread_init_list = LIST_HEAD_INIT(per_thread_init_list);
276struct per_thread_init_fct {
277 struct list list;
278 int (*fct)();
279};
280
281/* These functions are called for each thread just after the scheduler loop and
282 * before exiting the thread. They don't return anything and, as for post-deinit
283 * functions, they work in best effort mode as their sole goal is to make
284 * valgrind mostly happy. */
285struct list per_thread_deinit_list = LIST_HEAD_INIT(per_thread_deinit_list);
286struct per_thread_deinit_fct {
287 struct list list;
288 void (*fct)();
289};
290
Willy Tarreaubaaee002006-06-26 02:48:02 +0200291/*********************************************************************/
292/* general purpose functions ***************************************/
293/*********************************************************************/
294
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100295/* used to register some build option strings at boot. Set must_free to
296 * non-zero if the string must be freed upon exit.
297 */
298void hap_register_build_opts(const char *str, int must_free)
299{
300 struct build_opts_str *b;
301
302 b = calloc(1, sizeof(*b));
303 if (!b) {
304 fprintf(stderr, "out of memory\n");
305 exit(1);
306 }
307 b->str = str;
308 b->must_free = must_free;
309 LIST_ADDQ(&build_opts_list, &b->list);
310}
311
Willy Tarreaue6945732016-12-21 19:57:00 +0100312/* used to register some initialization functions to call after the checks. */
313void hap_register_post_check(int (*fct)())
314{
315 struct post_check_fct *b;
316
317 b = calloc(1, sizeof(*b));
318 if (!b) {
319 fprintf(stderr, "out of memory\n");
320 exit(1);
321 }
322 b->fct = fct;
323 LIST_ADDQ(&post_check_list, &b->list);
324}
325
Willy Tarreau05554e62016-12-21 20:46:26 +0100326/* used to register some de-initialization functions to call after everything
327 * has stopped.
328 */
329void hap_register_post_deinit(void (*fct)())
330{
331 struct post_deinit_fct *b;
332
333 b = calloc(1, sizeof(*b));
334 if (!b) {
335 fprintf(stderr, "out of memory\n");
336 exit(1);
337 }
338 b->fct = fct;
339 LIST_ADDQ(&post_deinit_list, &b->list);
340}
341
Christopher Faulet415f6112017-07-25 16:52:58 +0200342/* used to register some initialization functions to call for each thread. */
343void hap_register_per_thread_init(int (*fct)())
344{
345 struct per_thread_init_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(&per_thread_init_list, &b->list);
354}
355
356/* used to register some de-initialization functions to call for each thread. */
357void hap_register_per_thread_deinit(void (*fct)())
358{
359 struct per_thread_deinit_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_deinit_list, &b->list);
368}
369
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100370static void display_version()
Willy Tarreaubaaee002006-06-26 02:48:02 +0200371{
372 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreau65e94d12018-08-02 18:12:50 +0200373 printf("Copyright 2000-2018 Willy Tarreau <willy@haproxy.org>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200374}
375
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100376static void display_build_opts()
Willy Tarreau7b066db2007-12-02 11:28:59 +0100377{
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100378 struct build_opts_str *item;
379
Willy Tarreau7b066db2007-12-02 11:28:59 +0100380 printf("Build options :"
381#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100382 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100383#endif
384#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100385 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100386#endif
387#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100388 "\n CC = " BUILD_CC
389#endif
390#ifdef BUILD_CFLAGS
391 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100392#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100393#ifdef BUILD_OPTIONS
394 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100395#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200396 "\n\nDefault settings :"
397 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
398 "\n\n",
399 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200400
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100401 list_for_each_entry(item, &build_opts_list, list) {
402 puts(item->str);
403 }
404
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100405 putchar('\n');
406
Willy Tarreaube5b6852009-10-03 18:57:08 +0200407 list_pollers(stdout);
408 putchar('\n');
Christopher Faulet98d9fe22018-04-10 14:37:32 +0200409 list_mux_proto(stdout);
410 putchar('\n');
Christopher Fauletb3f4e142016-03-07 12:46:38 +0100411 list_filters(stdout);
412 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100413}
414
Willy Tarreaubaaee002006-06-26 02:48:02 +0200415/*
416 * This function prints the command line usage and exits
417 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100418static void usage(char *name)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200419{
420 display_version();
421 fprintf(stderr,
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200422 "Usage : %s [-f <cfgfile|cfgdir>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200423 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200424 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100425 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200426 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200427 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200428 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200429 " -D goes daemon ; -C changes to <dir> before loading files.\n"
William Lallemand095ba4c2017-06-01 17:38:50 +0200430 " -W master-worker mode.\n"
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100431#if defined(USE_SYSTEMD)
432 " -Ws master-worker mode with systemd notify support.\n"
433#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200434 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200435 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200436 " -n sets the maximum total # of connections (%d)\n"
437 " -m limits the usable amount of memory (in MB)\n"
438 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200439 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200440 " -p writes pids of all children to this file\n"
441#if defined(ENABLE_EPOLL)
442 " -de disables epoll() usage even when available\n"
443#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200444#if defined(ENABLE_KQUEUE)
445 " -dk disables kqueue() usage even when available\n"
446#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200447#if defined(ENABLE_POLL)
448 " -dp disables poll() usage even when available\n"
449#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200450#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100451 " -dS disables splice usage (broken on old kernels)\n"
452#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200453#if defined(USE_GETADDRINFO)
454 " -dG disables getaddrinfo() usage\n"
455#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000456#if defined(SO_REUSEPORT)
457 " -dR disables SO_REUSEPORT usage\n"
458#endif
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100459 " -dr ignores server address resolution failures\n"
Emeric Brun850efd52014-01-29 12:24:34 +0100460 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200461 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Olivier Houchardf73629d2017-04-05 22:33:04 +0200462 " -x <unix_socket> get listening sockets from a unix socket\n"
William Lallemande7361152018-10-26 14:47:36 +0200463 " -S <unix_socket>[,<bind options>...] new stats socket for the master\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200464 "\n",
465 name, DEFAULT_MAXCONN, cfg_maxpconn);
466 exit(1);
467}
468
469
470
471/*********************************************************************/
472/* more specific functions ***************************************/
473/*********************************************************************/
474
William Lallemand73b85e72017-06-01 17:38:51 +0200475/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
476 * pids the signal was correctly delivered to.
477 */
478static int tell_old_pids(int sig)
479{
480 int p;
481 int ret = 0;
482 for (p = 0; p < nb_oldpids; p++)
483 if (kill(oldpids[p], sig) == 0)
484 ret++;
485 return ret;
486}
487
488/* return 1 if a pid is a current child otherwise 0 */
489
490int current_child(int pid)
491{
492 int i;
493
494 for (i = 0; i < global.nbproc; i++) {
495 if (children[i] == pid)
496 return 1;
497 }
498 return 0;
499}
500
William Lallemand73b85e72017-06-01 17:38:51 +0200501static void mworker_block_signals()
502{
503 sigset_t set;
504
505 sigemptyset(&set);
506 sigaddset(&set, SIGUSR1);
507 sigaddset(&set, SIGUSR2);
508 sigaddset(&set, SIGHUP);
William Lallemandebf304f2018-09-11 10:06:21 +0200509 sigaddset(&set, SIGCHLD);
William Lallemand6e1796e2018-06-07 11:23:40 +0200510 ha_sigmask(SIG_SETMASK, &set, NULL);
William Lallemand73b85e72017-06-01 17:38:51 +0200511}
512
513static void mworker_unblock_signals()
514{
William Lallemandd3801c12018-09-11 10:06:23 +0200515 haproxy_unblock_signals();
William Lallemand73b85e72017-06-01 17:38:51 +0200516}
517
William Lallemand73b85e72017-06-01 17:38:51 +0200518/*
519 * Send signal to every known children.
520 */
521
522static void mworker_kill(int sig)
523{
524 int i;
525
526 tell_old_pids(sig);
527 if (children) {
528 for (i = 0; i < global.nbproc; i++)
529 kill(children[i], sig);
530 }
William Lallemandbc193052018-09-11 10:06:26 +0200531}
532
533/*
534 * serialize the proc list and put it in the environment
535 */
536static void mworker_proc_list_to_env()
537{
538 char *msg = NULL;
539 struct mworker_proc *child;
540
541 list_for_each_entry(child, &proc_list, list) {
542 if (msg)
William Lallemandf1a62862018-10-26 14:47:29 +0200543 memprintf(&msg, "%s|type=worker;fd=%d;pid=%d;rpid=%d;reloads=%d", msg, child->ipc_fd[0], child->pid, child->relative_pid, child->reloads);
William Lallemandbc193052018-09-11 10:06:26 +0200544 else
William Lallemandf1a62862018-10-26 14:47:29 +0200545 memprintf(&msg, "type=worker;fd=%d;pid=%d;rpid=%d;reloads=%d", child->ipc_fd[0], child->pid, child->relative_pid, child->reloads);
William Lallemandbc193052018-09-11 10:06:26 +0200546 }
547 if (msg)
548 setenv("HAPROXY_CHILDREN", msg, 1);
549}
550
551/*
552 * unserialize the proc list from the environment
553 */
554static void mworker_env_to_proc_list()
555{
556 char *msg, *token = NULL, *s1;
557
558 msg = getenv("HAPROXY_CHILDREN");
559 if (!msg)
560 return;
561
562 while ((token = strtok_r(msg, "|", &s1))) {
563 struct mworker_proc *child;
564 char *subtoken = NULL;
565 char *s2;
566
567 msg = NULL;
568
569 child = calloc(1, sizeof(*child));
570
571 while ((subtoken = strtok_r(token, ";", &s2))) {
572
573 token = NULL;
574
575 if (strncmp(subtoken, "fd=", 3) == 0) {
576 child->ipc_fd[0] = atoi(subtoken+3);
577 } else if (strncmp(subtoken, "pid=", 4) == 0) {
578 child->pid = atoi(subtoken+4);
579 } else if (strncmp(subtoken, "rpid=", 5) == 0) {
580 child->relative_pid = atoi(subtoken+5);
William Lallemandf1a62862018-10-26 14:47:29 +0200581 } else if (strncmp(subtoken, "reloads=", 8) == 0) {
582 /* we reloaded this process once more */
583 child->reloads = atoi(subtoken+8) + 1;
William Lallemandbc193052018-09-11 10:06:26 +0200584 }
585 }
586 if (child->pid)
587 LIST_ADDQ(&proc_list, &child->list);
588 else
589 free(child);
590 }
591
592 unsetenv("HAPROXY_CHILDREN");
William Lallemand73b85e72017-06-01 17:38:51 +0200593}
594
Willy Tarreaubaaee002006-06-26 02:48:02 +0200595/*
William Lallemand75ea0a02017-11-15 19:02:58 +0100596 * Upon a reload, the master worker needs to close all listeners FDs but the mworker_pipe
597 * fd, and the FD provided by fd@
598 */
599static void mworker_cleanlisteners()
600{
601 struct listener *l, *l_next;
602 struct proxy *curproxy;
Willy Tarreau473cf5d2017-12-05 11:14:12 +0100603 struct peers *curpeers;
William Lallemand75ea0a02017-11-15 19:02:58 +0100604
William Lallemand3da97692018-09-11 10:06:19 +0200605 /* we might have to unbind some peers sections from some processes */
606 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
607 if (!curpeers->peers_fe)
608 continue;
Willy Tarreau473cf5d2017-12-05 11:14:12 +0100609
William Lallemand3da97692018-09-11 10:06:19 +0200610 stop_proxy(curpeers->peers_fe);
611 /* disable this peer section so that it kills itself */
612 signal_unregister_handler(curpeers->sighandler);
613 task_delete(curpeers->sync_task);
614 task_free(curpeers->sync_task);
615 curpeers->sync_task = NULL;
616 task_free(curpeers->peers_fe->task);
617 curpeers->peers_fe->task = NULL;
618 curpeers->peers_fe = NULL;
619 }
William Lallemand75ea0a02017-11-15 19:02:58 +0100620
William Lallemand91c13b62018-09-11 10:06:20 +0200621 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
William Lallemand75ea0a02017-11-15 19:02:58 +0100622 list_for_each_entry_safe(l, l_next, &curproxy->conf.listeners, by_fe) {
William Lallemande22f11f2018-09-11 10:06:27 +0200623 /* remove the listener, but not those we need in the master... */
William Lallemanddd319a52018-10-12 10:39:54 +0200624 if (!(l->options & LI_O_MWORKER)) {
625 /* unbind the listener but does not close if
626 the FD is inherited with fd@ from the parent
627 process */
628 if (l->options & LI_O_INHERITED)
629 unbind_listener_no_close(l);
630 else
631 unbind_listener(l);
William Lallemande22f11f2018-09-11 10:06:27 +0200632 delete_listener(l);
William Lallemanddd319a52018-10-12 10:39:54 +0200633 }
William Lallemand75ea0a02017-11-15 19:02:58 +0100634 }
635 }
636}
637
638
639/*
William Lallemand73b85e72017-06-01 17:38:51 +0200640 * remove a pid forom the olpid array and decrease nb_oldpids
641 * return 1 pid was found otherwise return 0
642 */
643
644int delete_oldpid(int pid)
645{
646 int i;
647
648 for (i = 0; i < nb_oldpids; i++) {
649 if (oldpids[i] == pid) {
650 oldpids[i] = oldpids[nb_oldpids - 1];
651 oldpids[nb_oldpids - 1] = 0;
652 nb_oldpids--;
653 return 1;
654 }
655 }
656 return 0;
657}
658
William Lallemand85b0bd92017-06-01 17:38:53 +0200659
660static void get_cur_unixsocket()
661{
662 /* if -x was used, try to update the stat socket if not available anymore */
663 if (global.stats_fe) {
664 struct bind_conf *bind_conf;
665
666 /* pass through all stats socket */
667 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
668 struct listener *l;
669
670 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
671
672 if (l->addr.ss_family == AF_UNIX &&
673 (bind_conf->level & ACCESS_FD_LISTENERS)) {
674 const struct sockaddr_un *un;
675
676 un = (struct sockaddr_un *)&l->addr;
677 /* priority to old_unixsocket */
678 if (!cur_unixsocket) {
679 cur_unixsocket = strdup(un->sun_path);
680 } else {
681 if (old_unixsocket && !strcmp(un->sun_path, old_unixsocket)) {
682 free(cur_unixsocket);
683 cur_unixsocket = strdup(old_unixsocket);
684 return;
685 }
686 }
687 }
688 }
689 }
690 }
691 if (!cur_unixsocket && old_unixsocket)
692 cur_unixsocket = strdup(old_unixsocket);
693}
694
William Lallemand73b85e72017-06-01 17:38:51 +0200695/*
696 * When called, this function reexec haproxy with -sf followed by current
697 * children PIDs and possibily old children PIDs if they didn't leave yet.
698 */
699static void mworker_reload()
700{
701 int next_argc = 0;
702 int j;
703 char *msg = NULL;
704
705 mworker_block_signals();
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100706#if defined(USE_SYSTEMD)
707 if (global.tune.options & GTUNE_USE_SYSTEMD)
708 sd_notify(0, "RELOADING=1");
709#endif
William Lallemand73b85e72017-06-01 17:38:51 +0200710 setenv("HAPROXY_MWORKER_REEXEC", "1", 1);
711
William Lallemandbc193052018-09-11 10:06:26 +0200712 mworker_proc_list_to_env(); /* put the children description in the env */
713
William Lallemand73b85e72017-06-01 17:38:51 +0200714 /* compute length */
715 while (next_argv[next_argc])
716 next_argc++;
717
William Lallemand85b0bd92017-06-01 17:38:53 +0200718 /* 1 for haproxy -sf, 2 for -x /socket */
719 next_argv = realloc(next_argv, (next_argc + 1 + 2 + global.nbproc + nb_oldpids + 1) * sizeof(char *));
William Lallemand73b85e72017-06-01 17:38:51 +0200720 if (next_argv == NULL)
721 goto alloc_error;
722
723
724 /* add -sf <PID>* to argv */
725 if (children || nb_oldpids > 0)
726 next_argv[next_argc++] = "-sf";
727 if (children) {
728 for (j = 0; j < global.nbproc; next_argc++,j++) {
729 next_argv[next_argc] = memprintf(&msg, "%d", children[j]);
730 if (next_argv[next_argc] == NULL)
731 goto alloc_error;
732 msg = NULL;
733 }
734 }
735 /* copy old process PIDs */
736 for (j = 0; j < nb_oldpids; next_argc++,j++) {
737 next_argv[next_argc] = memprintf(&msg, "%d", oldpids[j]);
738 if (next_argv[next_argc] == NULL)
739 goto alloc_error;
740 msg = NULL;
741 }
742 next_argv[next_argc] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200743
William Lallemand2bf6d622017-06-20 11:20:23 +0200744 /* add the -x option with the stat socket */
William Lallemand85b0bd92017-06-01 17:38:53 +0200745 if (cur_unixsocket) {
746
William Lallemand2bf6d622017-06-20 11:20:23 +0200747 next_argv[next_argc++] = "-x";
748 next_argv[next_argc++] = (char *)cur_unixsocket;
749 next_argv[next_argc++] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200750 }
751
William Lallemand123f1f62018-09-11 10:06:29 +0200752 if (getenv("HAPROXY_MWORKER_WAIT_ONLY") == NULL) {
753 struct per_thread_deinit_fct *ptdf;
754
755 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
756 ptdf->fct();
William Lallemandde0ff5a2018-09-11 10:06:24 +0200757 deinit_pollers(); /* we don't want to leak the poller fd */
William Lallemand123f1f62018-09-11 10:06:29 +0200758 }
William Lallemandb3f2be32018-09-11 10:06:18 +0200759
Christopher Faulet767a84b2017-11-24 16:50:31 +0100760 ha_warning("Reexecuting Master process\n");
Tim Duesterhus0436ab72017-11-12 17:39:18 +0100761 execvp(next_argv[0], next_argv);
William Lallemand73b85e72017-06-01 17:38:51 +0200762
Christopher Faulet767a84b2017-11-24 16:50:31 +0100763 ha_warning("Failed to reexecute the master process [%d]: %s\n", pid, strerror(errno));
William Lallemand722d4ca2017-11-15 19:02:55 +0100764 return;
765
William Lallemand73b85e72017-06-01 17:38:51 +0200766alloc_error:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100767 ha_warning("Failed to reexecute the master processs [%d]: Cannot allocate memory\n", pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200768 return;
769}
770
William Lallemand73b85e72017-06-01 17:38:51 +0200771/*
William Lallemandb3f2be32018-09-11 10:06:18 +0200772 * When called, this function reexec haproxy with -sf followed by current
773 * children PIDs and possibily old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200774 */
William Lallemandb3f2be32018-09-11 10:06:18 +0200775static void mworker_catch_sighup(struct sig_handler *sh)
William Lallemand73b85e72017-06-01 17:38:51 +0200776{
William Lallemandb3f2be32018-09-11 10:06:18 +0200777 mworker_reload();
778}
William Lallemand73b85e72017-06-01 17:38:51 +0200779
William Lallemandb3f2be32018-09-11 10:06:18 +0200780static void mworker_catch_sigterm(struct sig_handler *sh)
781{
782 int sig = sh->arg;
William Lallemand2f8b31c2017-11-15 19:02:56 +0100783
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100784#if defined(USE_SYSTEMD)
William Lallemandb3f2be32018-09-11 10:06:18 +0200785 if (global.tune.options & GTUNE_USE_SYSTEMD) {
786 sd_notify(0, "STOPPING=1");
787 }
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100788#endif
William Lallemandb3f2be32018-09-11 10:06:18 +0200789 ha_warning("Exiting Master process...\n");
790 mworker_kill(sig);
791}
William Lallemand73b85e72017-06-01 17:38:51 +0200792
William Lallemandb3f2be32018-09-11 10:06:18 +0200793/*
794 * Wait for every children to exit
795 */
William Lallemand73b85e72017-06-01 17:38:51 +0200796
William Lallemandb3f2be32018-09-11 10:06:18 +0200797static void mworker_catch_sigchld(struct sig_handler *sh)
798{
799 int exitpid = -1;
800 int status = 0;
William Lallemandbc193052018-09-11 10:06:26 +0200801 struct mworker_proc *child, *it;
William Lallemand73b85e72017-06-01 17:38:51 +0200802
William Lallemandb3f2be32018-09-11 10:06:18 +0200803restart_wait:
William Lallemand73b85e72017-06-01 17:38:51 +0200804
William Lallemandb3f2be32018-09-11 10:06:18 +0200805 exitpid = waitpid(-1, &status, WNOHANG);
806 if (exitpid > 0) {
William Lallemand73b85e72017-06-01 17:38:51 +0200807 if (WIFEXITED(status))
808 status = WEXITSTATUS(status);
809 else if (WIFSIGNALED(status))
810 status = 128 + WTERMSIG(status);
811 else if (WIFSTOPPED(status))
812 status = 128 + WSTOPSIG(status);
813 else
814 status = 255;
815
William Lallemandbc193052018-09-11 10:06:26 +0200816 list_for_each_entry_safe(child, it, &proc_list, list) {
817 if (child->pid != exitpid)
818 continue;
819
820 LIST_DEL(&child->list);
821 close(child->ipc_fd[0]);
William Lallemandbc193052018-09-11 10:06:26 +0200822 break;
823 }
824
William Lallemand73b85e72017-06-01 17:38:51 +0200825 if (!children) {
William Lallemand18e52a82018-11-06 17:37:13 +0100826 ha_warning("Worker %d exited with code %d (%s)\n", exitpid, status, (status >= 128) ? strsignal(status - 128) : "Exit");
William Lallemand73b85e72017-06-01 17:38:51 +0200827 } else {
828 /* check if exited child was in the current children list */
829 if (current_child(exitpid)) {
William Lallemand18e52a82018-11-06 17:37:13 +0100830 ha_alert("Current worker #%d (%d) exited with code %d (%s)\n", child->relative_pid, exitpid, status, (status >= 128) ? strsignal(status - 128) : "Exit");
William Lallemand69f9b3b2017-06-01 17:38:54 +0200831 if (status != 0 && status != 130 && status != 143
William Lallemand4cfede82017-11-24 22:02:34 +0100832 && !(global.tune.options & GTUNE_NOEXIT_ONFAILURE)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100833 ha_alert("exit-on-failure: killing every workers with SIGTERM\n");
William Lallemand91723742018-11-06 17:37:14 +0100834 if (exitcode < 0)
835 exitcode = status;
William Lallemand69f9b3b2017-06-01 17:38:54 +0200836 mworker_kill(SIGTERM);
837 }
William Lallemand73b85e72017-06-01 17:38:51 +0200838 } else {
William Lallemand18e52a82018-11-06 17:37:13 +0100839 ha_warning("Former worker #%d (%d) exited with code %d (%s)\n", child->relative_pid, exitpid, status, (status >= 128) ? strsignal(status - 128) : "Exit");
William Lallemand73b85e72017-06-01 17:38:51 +0200840 delete_oldpid(exitpid);
841 }
842 }
William Lallemand18e52a82018-11-06 17:37:13 +0100843 free(child);
844
William Lallemandb3f2be32018-09-11 10:06:18 +0200845 /* do it again to check if it was the last worker */
846 goto restart_wait;
William Lallemand73b85e72017-06-01 17:38:51 +0200847 }
William Lallemandb3f2be32018-09-11 10:06:18 +0200848 /* Better rely on the system than on a list of process to check if it was the last one */
849 else if (exitpid == -1 && errno == ECHILD) {
William Lallemand18e52a82018-11-06 17:37:13 +0100850 ha_warning("All workers exited. Exiting... (%d)\n", (exitcode > 0) ? exitcode : status);
William Lallemandb3f2be32018-09-11 10:06:18 +0200851 atexit_flag = 0;
William Lallemand91723742018-11-06 17:37:14 +0100852 if (exitcode > 0)
853 exit(exitcode);
William Lallemandb3f2be32018-09-11 10:06:18 +0200854 exit(status); /* parent must leave using the latest status code known */
855 }
856
William Lallemand73b85e72017-06-01 17:38:51 +0200857}
858
William Lallemandb3f2be32018-09-11 10:06:18 +0200859static void mworker_loop()
860{
861
862#if defined(USE_SYSTEMD)
863 if (global.tune.options & GTUNE_USE_SYSTEMD)
864 sd_notifyf(0, "READY=1\nMAINPID=%lu", (unsigned long)getpid());
865#endif
866
William Lallemandbc193052018-09-11 10:06:26 +0200867 master = 1;
868
William Lallemandb3f2be32018-09-11 10:06:18 +0200869 signal_register_fct(SIGTERM, mworker_catch_sigterm, SIGTERM);
870 signal_register_fct(SIGUSR1, mworker_catch_sigterm, SIGUSR1);
871 signal_register_fct(SIGINT, mworker_catch_sigterm, SIGINT);
872 signal_register_fct(SIGHUP, mworker_catch_sighup, SIGHUP);
873 signal_register_fct(SIGUSR2, mworker_catch_sighup, SIGUSR2);
874 signal_register_fct(SIGCHLD, mworker_catch_sigchld, SIGCHLD);
875
876 mworker_unblock_signals();
877 mworker_cleanlisteners();
878
William Lallemandbc193052018-09-11 10:06:26 +0200879 mworker_catch_sigchld(NULL); /* ensure we clean the children in case
880 some SIGCHLD were lost */
881
William Lallemandb3f2be32018-09-11 10:06:18 +0200882 global.nbthread = 1;
883 relative_pid = 1;
884 pid_bit = 1;
885
886 jobs++; /* this is the "master" job, we want to take care of the
887 signals even if there is no listener so the poll loop don't
888 leave */
889
890 fork_poller();
891 run_thread_poll_loop((int []){0});
892}
William Lallemandcb11fd22017-06-01 17:38:52 +0200893
894/*
William Lallemandf9cc07c2018-09-11 10:06:25 +0200895 * This function initialize haproxy for the master wait mode, it won't fork any
896 * new process and won't parse the configuration
897 */
898static int mworker_wait_mode()
899{
900
901 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
902
903 if (!(global.tune.options & GTUNE_USE_KQUEUE))
904 disable_poller("kqueue");
905
906 if (!(global.tune.options & GTUNE_USE_EPOLL))
907 disable_poller("epoll");
908
909 if (!(global.tune.options & GTUNE_USE_POLL))
910 disable_poller("poll");
911
912 if (!(global.tune.options & GTUNE_USE_SELECT))
913 disable_poller("select");
914
915 if (global.tune.maxpollevents <= 0)
916 global.tune.maxpollevents = MAX_POLL_EVENTS;
917
918 init_pollers();
919
920
921 mworker_loop();
922
923 /* should never be there */
924
925 return -1;
926}
927
928/*
William Lallemandcb11fd22017-06-01 17:38:52 +0200929 * Reexec the process in failure mode, instead of exiting
930 */
931void reexec_on_failure()
932{
933 if (!atexit_flag)
934 return;
935
936 setenv("HAPROXY_MWORKER_WAIT_ONLY", "1", 1);
937
Christopher Faulet767a84b2017-11-24 16:50:31 +0100938 ha_warning("Reexecuting Master process in waitpid mode\n");
William Lallemandcb11fd22017-06-01 17:38:52 +0200939 mworker_reload();
William Lallemandcb11fd22017-06-01 17:38:52 +0200940}
William Lallemand73b85e72017-06-01 17:38:51 +0200941
942
943/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200944 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
945 * a signal zero to all subscribers. This means that it's as easy as
946 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200947 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100948static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200949{
950 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200951 signal_unregister_handler(sh);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100952 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200953}
954
955/*
956 * upon SIGTTOU, we pause everything
957 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100958static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200959{
960 pause_proxies();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100961 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200962}
963
964/*
965 * upon SIGTTIN, let's have a soft stop.
966 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100967static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200968{
Willy Tarreaube58c382011-07-24 18:28:10 +0200969 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200970}
971
972/*
973 * this function dumps every server's state when the process receives SIGHUP.
974 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100975static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200976{
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100977 struct proxy *p = proxies_list;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200978
Christopher Faulet767a84b2017-11-24 16:50:31 +0100979 ha_warning("SIGHUP received, dumping servers states.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200980 while (p) {
981 struct server *s = p->srv;
982
983 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
984 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100985 chunk_printf(&trash,
986 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
987 p->id, s->id,
Emeric Brun52a91d32017-08-31 14:41:55 +0200988 (s->cur_state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100989 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200990 ha_warning("%s\n", trash.area);
991 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200992 s = s->next;
993 }
994
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200995 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
996 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100997 chunk_printf(&trash,
998 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
999 p->id,
1000 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 +02001001 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01001002 chunk_printf(&trash,
1003 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
1004 p->id,
1005 (p->srv_bck) ? "is running on backup servers" : "has no server available",
1006 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 +02001007 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01001008 chunk_printf(&trash,
1009 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
1010 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
1011 p->id, p->srv_act, p->srv_bck,
1012 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 +02001013 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001014 ha_warning("%s\n", trash.area);
1015 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001016
1017 p = p->next;
1018 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001019}
1020
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001021static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001022{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001023 /* dump memory usage then free everything possible */
1024 dump_pools();
Willy Tarreaubafbe012017-11-24 17:34:44 +01001025 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001026}
1027
William Lallemande1340412017-12-28 16:09:36 +01001028/*
1029 * This function dup2 the stdio FDs (0,1,2) with <fd>, then closes <fd>
1030 * If <fd> < 0, it opens /dev/null and use it to dup
1031 *
1032 * In the case of chrooting, you have to open /dev/null before the chroot, and
1033 * pass the <fd> to this function
1034 */
1035static void stdio_quiet(int fd)
1036{
1037 if (fd < 0)
1038 fd = open("/dev/null", O_RDWR, 0);
1039
1040 if (fd > -1) {
1041 fclose(stdin);
1042 fclose(stdout);
1043 fclose(stderr);
1044
1045 dup2(fd, 0);
1046 dup2(fd, 1);
1047 dup2(fd, 2);
1048 if (fd > 2)
1049 close(fd);
1050 return;
1051 }
1052
1053 ha_alert("Cannot open /dev/null\n");
1054 exit(EXIT_FAILURE);
1055}
1056
1057
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001058/* This function check if cfg_cfgfiles containes directories.
1059 * If it find one, it add all the files (and only files) it containes
1060 * in cfg_cfgfiles in place of the directory (and remove the directory).
1061 * It add the files in lexical order.
1062 * It add only files with .cfg extension.
1063 * It doesn't add files with name starting with '.'
1064 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001065static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001066{
1067 struct wordlist *wl, *wlb;
1068 char *err = NULL;
1069
1070 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1071 struct stat file_stat;
1072 struct dirent **dir_entries = NULL;
1073 int dir_entries_nb;
1074 int dir_entries_it;
1075
1076 if (stat(wl->s, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001077 ha_alert("Cannot open configuration file/directory %s : %s\n",
1078 wl->s,
1079 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001080 exit(1);
1081 }
1082
1083 if (!S_ISDIR(file_stat.st_mode))
1084 continue;
1085
1086 /* from this point wl->s is a directory */
1087
1088 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
1089 if (dir_entries_nb < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001090 ha_alert("Cannot open configuration directory %s : %s\n",
1091 wl->s,
1092 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001093 exit(1);
1094 }
1095
1096 /* for each element in the directory wl->s */
1097 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
1098 struct dirent *dir_entry = dir_entries[dir_entries_it];
1099 char *filename = NULL;
1100 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
1101
1102 /* don't add filename that begin with .
1103 * only add filename with .cfg extention
1104 */
1105 if (dir_entry->d_name[0] == '.' ||
1106 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
1107 goto next_dir_entry;
1108
1109 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001110 ha_alert("Cannot load configuration files %s : out of memory.\n",
1111 filename);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001112 exit(1);
1113 }
1114
1115 if (stat(filename, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001116 ha_alert("Cannot open configuration file %s : %s\n",
1117 wl->s,
1118 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001119 exit(1);
1120 }
1121
1122 /* don't add anything else than regular file in cfg_cfgfiles
1123 * this way we avoid loops
1124 */
1125 if (!S_ISREG(file_stat.st_mode))
1126 goto next_dir_entry;
1127
1128 if (!list_append_word(&wl->list, filename, &err)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001129 ha_alert("Cannot load configuration files %s : %s\n",
1130 filename,
1131 err);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001132 exit(1);
1133 }
1134
1135next_dir_entry:
1136 free(filename);
1137 free(dir_entry);
1138 }
1139
1140 free(dir_entries);
1141
1142 /* remove the current directory (wl) from cfg_cfgfiles */
1143 free(wl->s);
1144 LIST_DEL(&wl->list);
1145 free(wl);
1146 }
1147
1148 free(err);
1149}
1150
Olivier Houchardf73629d2017-04-05 22:33:04 +02001151static int get_old_sockets(const char *unixsocket)
1152{
1153 char *cmsgbuf = NULL, *tmpbuf = NULL;
1154 int *tmpfd = NULL;
1155 struct sockaddr_un addr;
1156 struct cmsghdr *cmsg;
1157 struct msghdr msghdr;
1158 struct iovec iov;
1159 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +02001160 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +02001161 int sock = -1;
1162 int ret = -1;
1163 int ret2 = -1;
1164 int fd_nb;
1165 int got_fd = 0;
1166 int i = 0;
1167 size_t maxoff = 0, curoff = 0;
1168
1169 memset(&msghdr, 0, sizeof(msghdr));
1170 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
1171 if (!cmsgbuf) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001172 ha_warning("Failed to allocate memory to send sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001173 goto out;
1174 }
1175 sock = socket(PF_UNIX, SOCK_STREAM, 0);
1176 if (sock < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001177 ha_warning("Failed to connect to the old process socket '%s'\n",
1178 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001179 goto out;
1180 }
1181 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path));
1182 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
1183 addr.sun_family = PF_UNIX;
1184 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
1185 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001186 ha_warning("Failed to connect to the old process socket '%s'\n",
1187 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001188 goto out;
1189 }
Olivier Houchard54740872017-04-06 14:45:14 +02001190 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001191 iov.iov_base = &fd_nb;
1192 iov.iov_len = sizeof(fd_nb);
1193 msghdr.msg_iov = &iov;
1194 msghdr.msg_iovlen = 1;
1195 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
1196 /* First, get the number of file descriptors to be received */
1197 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001198 ha_warning("Failed to get the number of sockets to be transferred !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001199 goto out;
1200 }
1201 if (fd_nb == 0) {
1202 ret = 0;
1203 goto out;
1204 }
Olivier Houchardf143b802017-11-04 15:13:01 +01001205 tmpbuf = malloc(fd_nb * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int)));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001206 if (tmpbuf == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001207 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001208 goto out;
1209 }
1210 tmpfd = malloc(fd_nb * sizeof(int));
1211 if (tmpfd == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001212 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001213 goto out;
1214 }
1215 msghdr.msg_control = cmsgbuf;
1216 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
Olivier Houchardf143b802017-11-04 15:13:01 +01001217 iov.iov_len = MAX_SEND_FD * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001218 do {
1219 int ret3;
1220
1221 iov.iov_base = tmpbuf + curoff;
1222 ret = recvmsg(sock, &msghdr, 0);
1223 if (ret == -1 && errno == EINTR)
1224 continue;
1225 if (ret <= 0)
1226 break;
1227 /* Send an ack to let the sender know we got the sockets
1228 * and it can send some more
1229 */
1230 do {
1231 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
1232 } while (ret3 == -1 && errno == EINTR);
1233 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
1234 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
1235 if (cmsg->cmsg_level == SOL_SOCKET &&
1236 cmsg->cmsg_type == SCM_RIGHTS) {
1237 size_t totlen = cmsg->cmsg_len -
1238 CMSG_LEN(0);
1239 if (totlen / sizeof(int) + got_fd > fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001240 ha_warning("Got to many sockets !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001241 goto out;
1242 }
1243 /*
1244 * Be paranoid and use memcpy() to avoid any
1245 * potential alignement issue.
1246 */
1247 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
1248 got_fd += totlen / sizeof(int);
1249 }
1250 }
1251 curoff += ret;
1252 } while (got_fd < fd_nb);
1253
1254 if (got_fd != fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001255 ha_warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
1256 fd_nb, got_fd);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001257 goto out;
1258 }
1259 maxoff = curoff;
1260 curoff = 0;
1261 for (i = 0; i < got_fd; i++) {
1262 int fd = tmpfd[i];
1263 socklen_t socklen;
1264 int len;
1265
1266 xfer_sock = calloc(1, sizeof(*xfer_sock));
1267 if (!xfer_sock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001268 ha_warning("Failed to allocate memory in get_old_sockets() !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001269 break;
1270 }
1271 xfer_sock->fd = -1;
1272
1273 socklen = sizeof(xfer_sock->addr);
1274 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001275 ha_warning("Failed to get socket address\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001276 free(xfer_sock);
Olivier Houchardbe7b1ce2017-07-17 17:25:33 +02001277 xfer_sock = NULL;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001278 continue;
1279 }
1280 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001281 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001282 goto out;
1283 }
1284 len = tmpbuf[curoff++];
1285 if (len > 0) {
1286 /* We have a namespace */
1287 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001288 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001289 goto out;
1290 }
1291 xfer_sock->namespace = malloc(len + 1);
1292 if (!xfer_sock->namespace) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001293 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001294 goto out;
1295 }
1296 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
1297 xfer_sock->namespace[len] = 0;
1298 curoff += len;
1299 }
1300 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001301 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001302 goto out;
1303 }
1304 len = tmpbuf[curoff++];
1305 if (len > 0) {
1306 /* We have an interface */
1307 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001308 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001309 goto out;
1310 }
1311 xfer_sock->iface = malloc(len + 1);
1312 if (!xfer_sock->iface) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001313 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001314 goto out;
1315 }
1316 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
Olivier Houchard33e083c2018-03-15 17:48:49 +01001317 xfer_sock->iface[len] = 0;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001318 curoff += len;
1319 }
1320 if (curoff + sizeof(int) > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001321 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001322 goto out;
1323 }
1324 memcpy(&xfer_sock->options, &tmpbuf[curoff],
1325 sizeof(xfer_sock->options));
1326 curoff += sizeof(xfer_sock->options);
1327
1328 xfer_sock->fd = fd;
1329 if (xfer_sock_list)
1330 xfer_sock_list->prev = xfer_sock;
1331 xfer_sock->next = xfer_sock_list;
1332 xfer_sock->prev = NULL;
1333 xfer_sock_list = xfer_sock;
1334 xfer_sock = NULL;
1335 }
1336
1337 ret2 = 0;
1338out:
1339 /* If we failed midway make sure to close the remaining
1340 * file descriptors
1341 */
1342 if (tmpfd != NULL && i < got_fd) {
1343 for (; i < got_fd; i++) {
1344 close(tmpfd[i]);
1345 }
1346 }
1347 free(tmpbuf);
1348 free(tmpfd);
1349 free(cmsgbuf);
1350 if (sock != -1)
1351 close(sock);
1352 if (xfer_sock) {
1353 free(xfer_sock->namespace);
1354 free(xfer_sock->iface);
1355 if (xfer_sock->fd != -1)
1356 close(xfer_sock->fd);
1357 free(xfer_sock);
1358 }
1359 return (ret2);
1360}
1361
Willy Tarreaubaaee002006-06-26 02:48:02 +02001362/*
William Lallemand73b85e72017-06-01 17:38:51 +02001363 * copy and cleanup the current argv
1364 * Remove the -sf /-st parameters
1365 * Return an allocated copy of argv
1366 */
1367
1368static char **copy_argv(int argc, char **argv)
1369{
1370 char **newargv;
William Lallemand2bf6d622017-06-20 11:20:23 +02001371 int i = 0, j = 0;
William Lallemand73b85e72017-06-01 17:38:51 +02001372
1373 newargv = calloc(argc + 2, sizeof(char *));
1374 if (newargv == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001375 ha_warning("Cannot allocate memory\n");
William Lallemand73b85e72017-06-01 17:38:51 +02001376 return NULL;
1377 }
1378
William Lallemand2bf6d622017-06-20 11:20:23 +02001379 while (i < argc) {
1380 /* -sf or -st or -x */
William Lallemand29f690c2018-01-09 23:12:27 +01001381 if (i > 0 && argv[i][0] == '-' &&
1382 ((argv[i][1] == 's' && (argv[i][2] == 'f' || argv[i][2] == 't')) || argv[i][1] == 'x' )) {
William Lallemand2bf6d622017-06-20 11:20:23 +02001383 /* list of pids to finish ('f') or terminate ('t') or unix socket (-x) */
William Lallemand73b85e72017-06-01 17:38:51 +02001384 i++;
1385 while (i < argc && argv[i][0] != '-') {
1386 i++;
1387 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001388 continue;
William Lallemand73b85e72017-06-01 17:38:51 +02001389 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001390
1391 newargv[j++] = argv[i++];
William Lallemand73b85e72017-06-01 17:38:51 +02001392 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001393
William Lallemand73b85e72017-06-01 17:38:51 +02001394 return newargv;
1395}
1396
1397/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001398 * This function initializes all the necessary variables. It only returns
1399 * if everything is OK. If something fails, it exits.
1400 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001401static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001402{
Willy Tarreaubaaee002006-06-26 02:48:02 +02001403 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001404 char *tmp;
1405 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +02001406 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +02001407 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +01001408 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +00001409 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +02001410 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +02001411 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +01001412 struct post_check_fct *pcf;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001413
Christopher Faulete3a5e352017-10-24 13:53:54 +02001414 global.mode = MODE_STARTING;
William Lallemand73b85e72017-06-01 17:38:51 +02001415 next_argv = copy_argv(argc, argv);
1416
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001417 if (!init_trash_buffers(1)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001418 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet748919a2017-07-26 14:59:46 +02001419 exit(1);
1420 }
David du Colombier7af46052012-05-16 14:16:48 +02001421
Emeric Brun2b920a12010-09-23 18:30:22 +02001422 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
1423 * the string in case of truncation, and at least FreeBSD appears not to do
1424 * it.
1425 */
1426 memset(hostname, 0, sizeof(hostname));
1427 gethostname(hostname, sizeof(hostname) - 1);
1428 memset(localpeer, 0, sizeof(localpeer));
1429 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
William Lallemanddaf4cd22018-04-17 16:46:13 +02001430 setenv("HAPROXY_LOCALPEER", localpeer, 1);
Emeric Brun2b920a12010-09-23 18:30:22 +02001431
Willy Tarreaubaaee002006-06-26 02:48:02 +02001432 /*
1433 * Initialize the previously static variables.
1434 */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001435
Willy Tarreau173d9952018-01-26 21:48:23 +01001436 totalconn = actconn = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001437 killed = 0;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001438
Willy Tarreaubaaee002006-06-26 02:48:02 +02001439
1440#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +01001441 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001442#endif
1443
Benoit GARNIERb413c2a2016-03-27 11:08:03 +02001444 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001445 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001446 start_date = now;
1447
Willy Tarreau84310e22014-02-14 11:59:04 +01001448 srandom(now_ms - getpid());
1449
Dragan Dosen835b9212016-02-12 13:23:03 +01001450 init_log();
Willy Tarreau29857942009-05-10 09:01:21 +02001451 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +01001452 if (init_acl() != 0)
1453 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001454 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +02001455 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +02001456 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001457 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +02001458 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001459 init_pendconn();
Willy Tarreau04f1e2d2018-09-10 18:04:24 +02001460 if (!init_http(&err_msg)) {
1461 ha_alert("%s. Aborting.\n", err_msg);
1462 free(err_msg);
1463 abort();
1464 }
Willy Tarreau80587432006-12-24 17:47:20 +01001465 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001466
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001467 /* Initialise lua. */
1468 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001469
Christopher Fauletff2613e2016-11-09 11:36:17 +01001470 /* Initialize process vars */
1471 vars_init(&global.vars, SCOPE_PROC);
1472
Willy Tarreau43b78992009-01-25 15:42:27 +01001473 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001474#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001475 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001476#endif
1477#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001478 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001479#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001480#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +01001481 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001482#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001483#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001484 global.tune.options |= GTUNE_USE_SPLICE;
1485#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001486#if defined(USE_GETADDRINFO)
1487 global.tune.options |= GTUNE_USE_GAI;
1488#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001489#if defined(SO_REUSEPORT)
1490 global.tune.options |= GTUNE_USE_REUSEPORT;
1491#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001492
1493 pid = getpid();
1494 progname = *argv;
1495 while ((tmp = strchr(progname, '/')) != NULL)
1496 progname = tmp + 1;
1497
Kevinm48936af2010-12-22 16:08:21 +00001498 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +02001499 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +00001500
Willy Tarreaubaaee002006-06-26 02:48:02 +02001501 argc--; argv++;
1502 while (argc > 0) {
1503 char *flag;
1504
1505 if (**argv == '-') {
1506 flag = *argv+1;
1507
1508 /* 1 arg */
1509 if (*flag == 'v') {
1510 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +01001511 if (flag[1] == 'v') /* -vv */
1512 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001513 exit(0);
1514 }
1515#if defined(ENABLE_EPOLL)
1516 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +01001517 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001518#endif
1519#if defined(ENABLE_POLL)
1520 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +01001521 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001522#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +02001523#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001524 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +01001525 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001526#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001527#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001528 else if (*flag == 'd' && flag[1] == 'S')
1529 global.tune.options &= ~GTUNE_USE_SPLICE;
1530#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001531#if defined(USE_GETADDRINFO)
1532 else if (*flag == 'd' && flag[1] == 'G')
1533 global.tune.options &= ~GTUNE_USE_GAI;
1534#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001535#if defined(SO_REUSEPORT)
1536 else if (*flag == 'd' && flag[1] == 'R')
1537 global.tune.options &= ~GTUNE_USE_REUSEPORT;
1538#endif
Emeric Brun850efd52014-01-29 12:24:34 +01001539 else if (*flag == 'd' && flag[1] == 'V')
1540 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001541 else if (*flag == 'V')
1542 arg_mode |= MODE_VERBOSE;
1543 else if (*flag == 'd' && flag[1] == 'b')
1544 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +02001545 else if (*flag == 'd' && flag[1] == 'M')
1546 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +01001547 else if (*flag == 'd' && flag[1] == 'r')
1548 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001549 else if (*flag == 'd')
1550 arg_mode |= MODE_DEBUG;
1551 else if (*flag == 'c')
1552 arg_mode |= MODE_CHECK;
William Lallemand095ba4c2017-06-01 17:38:50 +02001553 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +02001554 arg_mode |= MODE_DAEMON;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001555 else if (*flag == 'W' && flag[1] == 's') {
Lukas Tribusf46bf952017-11-21 12:39:34 +01001556 arg_mode |= MODE_MWORKER | MODE_FOREGROUND;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001557#if defined(USE_SYSTEMD)
1558 global.tune.options |= GTUNE_USE_SYSTEMD;
1559#else
Christopher Faulet767a84b2017-11-24 16:50:31 +01001560 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 +01001561 usage(progname);
1562#endif
1563 }
William Lallemand095ba4c2017-06-01 17:38:50 +02001564 else if (*flag == 'W')
1565 arg_mode |= MODE_MWORKER;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001566 else if (*flag == 'q')
1567 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001568 else if (*flag == 'x') {
William Lallemand45eff442017-06-19 15:57:55 +02001569 if (argc <= 1 || argv[1][0] == '-') {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001570 ha_alert("Unix socket path expected with the -x flag\n\n");
William Lallemand45eff442017-06-19 15:57:55 +02001571 usage(progname);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001572 }
William Lallemand4fc09692017-06-19 16:37:19 +02001573 if (old_unixsocket)
Christopher Faulet767a84b2017-11-24 16:50:31 +01001574 ha_warning("-x option already set, overwriting the value\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001575 old_unixsocket = argv[1];
William Lallemand4fc09692017-06-19 16:37:19 +02001576
Olivier Houchardf73629d2017-04-05 22:33:04 +02001577 argv++;
1578 argc--;
1579 }
William Lallemande7361152018-10-26 14:47:36 +02001580 else if (*flag == 'S') {
1581 struct wordlist *c;
1582
1583 if (argc <= 1 || argv[1][0] == '-') {
1584 ha_alert("Socket and optional bind parameters expected with the -S flag\n");
1585 usage(progname);
1586 }
1587 if ((c = malloc(sizeof(*c))) == NULL || (c->s = strdup(argv[1])) == NULL) {
1588 ha_alert("Cannot allocate memory\n");
1589 exit(EXIT_FAILURE);
1590 }
1591 LIST_ADD(&mworker_cli_conf, &c->list);
1592
1593 argv++;
1594 argc--;
1595 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001596 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
1597 /* list of pids to finish ('f') or terminate ('t') */
1598
1599 if (flag[1] == 'f')
1600 oldpids_sig = SIGUSR1; /* finish then exit */
1601 else
1602 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001603 while (argc > 1 && argv[1][0] != '-') {
Chris Lane236062f2018-02-05 23:15:44 +00001604 char * endptr = NULL;
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001605 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
1606 if (!oldpids) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001607 ha_alert("Cannot allocate old pid : out of memory.\n");
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001608 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001609 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001610 argc--; argv++;
Chris Lane236062f2018-02-05 23:15:44 +00001611 errno = 0;
1612 oldpids[nb_oldpids] = strtol(*argv, &endptr, 10);
1613 if (errno) {
1614 ha_alert("-%2s option: failed to parse {%s}: %s\n",
1615 flag,
1616 *argv, strerror(errno));
1617 exit(1);
1618 } else if (endptr && strlen(endptr)) {
1619 while (isspace(*endptr)) endptr++;
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001620 if (*endptr != 0) {
Chris Lane236062f2018-02-05 23:15:44 +00001621 ha_alert("-%2s option: some bytes unconsumed in PID list {%s}\n",
1622 flag, endptr);
1623 exit(1);
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001624 }
Chris Lane236062f2018-02-05 23:15:44 +00001625 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001626 if (oldpids[nb_oldpids] <= 0)
1627 usage(progname);
1628 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001629 }
1630 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001631 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
1632 /* now that's a cfgfile list */
1633 argv++; argc--;
1634 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001635 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001636 ha_alert("Cannot load configuration file/directory %s : %s\n",
1637 *argv,
1638 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +02001639 exit(1);
1640 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001641 argv++; argc--;
1642 }
1643 break;
1644 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001645 else { /* >=2 args */
1646 argv++; argc--;
1647 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001648 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001649
1650 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +02001651 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001652 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +01001653 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001654 case 'N' : cfg_maxpconn = atol(*argv); break;
William Lallemanddaf4cd22018-04-17 16:46:13 +02001655 case 'L' :
1656 strncpy(localpeer, *argv, sizeof(localpeer) - 1);
1657 setenv("HAPROXY_LOCALPEER", localpeer, 1);
1658 break;
Willy Tarreau5d01a632009-06-22 16:02:30 +02001659 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +02001660 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001661 ha_alert("Cannot load configuration file/directory %s : %s\n",
1662 *argv,
1663 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +02001664 exit(1);
1665 }
Willy Tarreau5d01a632009-06-22 16:02:30 +02001666 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001667 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001668 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001669 }
1670 }
1671 }
1672 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001673 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001674 argv++; argc--;
1675 }
1676
Christopher Faulete3a5e352017-10-24 13:53:54 +02001677 global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
1678 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001679
William Lallemandcb11fd22017-06-01 17:38:52 +02001680 /* Master workers wait mode */
1681 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_WAIT_ONLY") != NULL)) {
1682
1683 unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
William Lallemandf9cc07c2018-09-11 10:06:25 +02001684 mworker_wait_mode();
William Lallemandcb11fd22017-06-01 17:38:52 +02001685 }
1686
1687 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") != NULL)) {
1688 atexit_flag = 1;
1689 atexit(reexec_on_failure);
1690 }
1691
Willy Tarreau576132e2011-09-10 19:26:56 +02001692 if (change_dir && chdir(change_dir) < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001693 ha_alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
Willy Tarreau576132e2011-09-10 19:26:56 +02001694 exit(1);
1695 }
1696
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001697 /* handle cfgfiles that are actualy directories */
1698 cfgfiles_expand_directories();
1699
1700 if (LIST_ISEMPTY(&cfg_cfgfiles))
1701 usage(progname);
1702
Willy Tarreaubaaee002006-06-26 02:48:02 +02001703 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001704
1705 init_default_instance();
1706
Willy Tarreau477ecd82010-01-03 21:12:30 +01001707 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +01001708 int ret;
1709
Willy Tarreau477ecd82010-01-03 21:12:30 +01001710 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +01001711 if (ret == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001712 ha_alert("Could not open configuration file %s : %s\n",
1713 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +01001714 exit(1);
1715 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +01001716 if (ret & (ERR_ABORT|ERR_FATAL))
Christopher Faulet767a84b2017-11-24 16:50:31 +01001717 ha_alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +01001718 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +02001719 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +02001720 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001721 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001722
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001723 /* do not try to resolve arguments nor to spot inconsistencies when
1724 * the configuration contains fatal errors caused by files not found
1725 * or failed memory allocations.
1726 */
1727 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001728 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001729 exit(1);
1730 }
1731
William Lallemandce83b4a2018-10-26 14:47:30 +02001732 if (global.mode & MODE_MWORKER) {
1733 int proc;
William Lallemande7361152018-10-26 14:47:36 +02001734 struct wordlist *it, *c;
William Lallemandce83b4a2018-10-26 14:47:30 +02001735
1736 for (proc = 0; proc < global.nbproc; proc++) {
1737 struct mworker_proc *tmproc;
1738
1739 tmproc = malloc(sizeof(*tmproc));
1740 if (!tmproc) {
1741 ha_alert("Cannot allocate process structures.\n");
1742 exit(EXIT_FAILURE);
1743 }
1744
1745 tmproc->pid = -1;
1746 tmproc->reloads = 0;
1747 tmproc->relative_pid = 1 + proc;
William Lallemand550db6d2018-11-06 17:37:12 +01001748 tmproc->ipc_fd[0] = -1;
1749 tmproc->ipc_fd[1] = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001750
1751 if (mworker_cli_sockpair_new(tmproc, proc) < 0) {
1752 exit(EXIT_FAILURE);
1753 }
1754
1755 LIST_ADDQ(&proc_list, &tmproc->list);
1756 }
William Lallemand1b663612018-10-26 14:47:33 +02001757 mworker_env_to_proc_list(); /* get the info of the children in the env */
William Lallemand8a022572018-10-26 14:47:35 +02001758
William Lallemande7361152018-10-26 14:47:36 +02001759
William Lallemand550db6d2018-11-06 17:37:12 +01001760 if (!LIST_ISEMPTY(&mworker_cli_conf)) {
William Lallemande7361152018-10-26 14:47:36 +02001761
William Lallemand550db6d2018-11-06 17:37:12 +01001762 if (mworker_cli_proxy_create() < 0) {
William Lallemande7361152018-10-26 14:47:36 +02001763 ha_alert("Can't create the master's CLI.\n");
1764 exit(EXIT_FAILURE);
1765 }
William Lallemande7361152018-10-26 14:47:36 +02001766
William Lallemand550db6d2018-11-06 17:37:12 +01001767 list_for_each_entry_safe(c, it, &mworker_cli_conf, list) {
1768
1769 if (mworker_cli_proxy_new_listener(c->s) < 0) {
1770 ha_alert("Can't create the master's CLI.\n");
1771 exit(EXIT_FAILURE);
1772 }
1773 LIST_DEL(&c->list);
1774 free(c->s);
1775 free(c);
1776 }
1777 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001778 }
1779
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +01001780 pattern_finalize_config();
1781
Willy Tarreaubb925012009-07-23 13:36:36 +02001782 err_code |= check_config_validity();
1783 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001784 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001785 exit(1);
1786 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001787
Willy Tarreau70060452015-12-14 12:46:07 +01001788 /* recompute the amount of per-process memory depending on nbproc and
1789 * the shared SSL cache size (allowed to exist in all processes).
1790 */
1791 if (global.rlimit_memmax_all) {
1792#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
1793 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
1794
1795 global.rlimit_memmax =
1796 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
1797 ssl_cache_bytes) / global.nbproc +
1798 ssl_cache_bytes + 1048575LL) / 1048576LL;
1799#else
1800 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
1801#endif
1802 }
1803
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001804#ifdef CONFIG_HAP_NS
1805 err_code |= netns_init();
1806 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001807 ha_alert("Failed to initialize namespace support.\n");
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001808 exit(1);
1809 }
1810#endif
1811
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001812 /* Apply server states */
1813 apply_server_state();
1814
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001815 for (px = proxies_list; px; px = px->next)
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001816 srv_compute_all_admin_states(px);
1817
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001818 /* Apply servers' configured address */
1819 err_code |= srv_init_addr();
1820 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001821 ha_alert("Failed to initialize server(s) addr.\n");
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001822 exit(1);
1823 }
1824
Willy Tarreaubaaee002006-06-26 02:48:02 +02001825 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001826 struct peers *pr;
1827 struct proxy *px;
1828
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001829 for (pr = cfg_peers; pr; pr = pr->next)
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001830 if (pr->peers_fe)
1831 break;
1832
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001833 for (px = proxies_list; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02001834 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001835 break;
1836
1837 if (pr || px) {
1838 /* At least one peer or one listener has been found */
1839 qfprintf(stdout, "Configuration file is valid\n");
1840 exit(0);
1841 }
1842 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
1843 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001844 }
1845
Emeric Brunc60def82017-09-27 14:59:38 +02001846 global_listener_queue_task = task_new(MAX_THREADS_MASK);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001847 if (!global_listener_queue_task) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001848 ha_alert("Out of memory when initializing global task\n");
Willy Tarreaue9b26022011-08-01 20:57:55 +02001849 exit(1);
1850 }
1851 /* very simple initialization, users will queue the task if needed */
1852 global_listener_queue_task->context = NULL; /* not even a context! */
1853 global_listener_queue_task->process = manage_global_listener_queue;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001854
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001855 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02001856 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02001857
Willy Tarreaue6945732016-12-21 19:57:00 +01001858 list_for_each_entry(pcf, &post_check_list, list) {
1859 err_code |= pcf->fct();
1860 if (err_code & (ERR_ABORT|ERR_FATAL))
1861 exit(1);
1862 }
1863
Willy Tarreaubaaee002006-06-26 02:48:02 +02001864 if (cfg_maxconn > 0)
1865 global.maxconn = cfg_maxconn;
1866
1867 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02001868 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001869 global.pidfile = strdup(cfg_pidfile);
1870 }
1871
Willy Tarreaud0256482015-01-15 21:45:22 +01001872 /* Now we want to compute the maxconn and possibly maxsslconn values.
1873 * It's a bit tricky. If memmax is not set, maxconn defaults to
1874 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
1875 *
1876 * If memmax is set, then it depends on which values are set. If
1877 * maxsslconn is set, we use memmax to determine how many cleartext
1878 * connections may be added, and set maxconn to the sum of the two.
1879 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1880 * the remaining amount of memory between memmax and the cleartext
1881 * connections. If neither are set, then it is considered that all
1882 * connections are SSL-capable, and maxconn is computed based on this,
1883 * then maxsslconn accordingly. We need to know if SSL is used on the
1884 * frontends, backends, or both, because when it's used on both sides,
1885 * we need twice the value for maxsslconn, but we only count the
1886 * handshake once since it is not performed on the two sides at the
1887 * same time (frontend-side is terminated before backend-side begins).
1888 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001889 * ssl_handshake_cost during its initialization. In any case, if
1890 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1891 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001892 */
1893 if (!global.rlimit_memmax) {
1894 if (global.maxconn == 0) {
1895 global.maxconn = DEFAULT_MAXCONN;
1896 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1897 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1898 }
1899 }
1900#ifdef USE_OPENSSL
1901 else if (!global.maxconn && !global.maxsslconn &&
1902 (global.ssl_used_frontend || global.ssl_used_backend)) {
1903 /* memmax is set, compute everything automatically. Here we want
1904 * to ensure that all SSL connections will be served. We take
1905 * care of the number of sides where SSL is used, and consider
1906 * the worst case : SSL used on both sides and doing a handshake
1907 * simultaneously. Note that we can't have more than maxconn
1908 * handshakes at a time by definition, so for the worst case of
1909 * two SSL conns per connection, we count a single handshake.
1910 */
1911 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1912 int64_t mem = global.rlimit_memmax * 1048576ULL;
1913
1914 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1915 mem -= global.maxzlibmem;
1916 mem = mem * MEM_USABLE_RATIO;
1917
1918 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001919 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001920 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1921 global.ssl_handshake_max_cost); // 1 handshake per connection max
1922
1923 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001924#ifdef SYSTEM_MAXCONN
1925 if (global.maxconn > DEFAULT_MAXCONN)
1926 global.maxconn = DEFAULT_MAXCONN;
1927#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001928 global.maxsslconn = sides * global.maxconn;
1929 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1930 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1931 global.maxconn, global.maxsslconn);
1932 }
1933 else if (!global.maxsslconn &&
1934 (global.ssl_used_frontend || global.ssl_used_backend)) {
1935 /* memmax and maxconn are known, compute maxsslconn automatically.
1936 * maxsslconn being forced, we don't know how many of it will be
1937 * on each side if both sides are being used. The worst case is
1938 * when all connections use only one SSL instance because
1939 * handshakes may be on two sides at the same time.
1940 */
1941 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1942 int64_t mem = global.rlimit_memmax * 1048576ULL;
1943 int64_t sslmem;
1944
1945 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1946 mem -= global.maxzlibmem;
1947 mem = mem * MEM_USABLE_RATIO;
1948
Willy Tarreau87b09662015-04-03 00:22:06 +02001949 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001950 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1951 global.maxsslconn = round_2dig(global.maxsslconn);
1952
1953 if (sslmem <= 0 || global.maxsslconn < sides) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001954 ha_alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1955 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1956 "without SSL is %d, but %d was found and SSL is in use.\n",
1957 global.rlimit_memmax,
1958 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
1959 global.maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001960 exit(1);
1961 }
1962
1963 if (global.maxsslconn > sides * global.maxconn)
1964 global.maxsslconn = sides * global.maxconn;
1965
1966 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1967 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1968 }
1969#endif
1970 else if (!global.maxconn) {
1971 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1972 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1973 int64_t mem = global.rlimit_memmax * 1048576ULL;
1974 int64_t clearmem;
1975
1976 if (global.ssl_used_frontend || global.ssl_used_backend)
1977 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1978
1979 mem -= global.maxzlibmem;
1980 mem = mem * MEM_USABLE_RATIO;
1981
1982 clearmem = mem;
1983 if (sides)
1984 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1985
Willy Tarreau87b09662015-04-03 00:22:06 +02001986 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001987 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001988#ifdef SYSTEM_MAXCONN
1989 if (global.maxconn > DEFAULT_MAXCONN)
1990 global.maxconn = DEFAULT_MAXCONN;
1991#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001992
1993 if (clearmem <= 0 || !global.maxconn) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001994 ha_alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
1995 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1996 "is %d, but %d was found.\n",
1997 global.rlimit_memmax,
1998 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
1999 global.maxsslconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01002000 exit(1);
2001 }
2002
2003 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2004 if (sides && global.maxsslconn > sides * global.maxconn) {
2005 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
2006 "to be limited to %d. Better reduce global.maxsslconn to get more "
2007 "room for extra connections.\n", global.maxsslconn, global.maxconn);
2008 }
2009 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
2010 }
2011 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002012
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002013 if (!global.maxpipes) {
2014 /* maxpipes not specified. Count how many frontends and backends
2015 * may be using splicing, and bound that to maxconn.
2016 */
2017 struct proxy *cur;
2018 int nbfe = 0, nbbe = 0;
2019
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002020 for (cur = proxies_list; cur; cur = cur->next) {
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002021 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
2022 if (cur->cap & PR_CAP_FE)
2023 nbfe += cur->maxconn;
2024 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +01002025 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002026 }
2027 }
2028 global.maxpipes = MAX(nbfe, nbbe);
2029 if (global.maxpipes > global.maxconn)
2030 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +01002031 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002032 }
2033
2034
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002035 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002036 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01002037 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Emeric Brunece0c332017-12-06 13:51:49 +01002038 /* compute fd used by async engines */
2039 if (global.ssl_used_async_engines) {
2040 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
2041 global.maxsock += global.maxconn * sides * global.ssl_used_async_engines;
2042 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002043
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002044 if (global.stats_fe)
2045 global.maxsock += global.stats_fe->maxconn;
2046
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002047 if (cfg_peers) {
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002048 /* peers also need to bypass global maxconn */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002049 struct peers *p = cfg_peers;
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002050
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002051 for (p = cfg_peers; p; p = p->next)
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002052 if (p->peers_fe)
2053 global.maxsock += p->peers_fe->maxconn;
2054 }
2055
Willy Tarreau1db37712007-06-03 17:16:49 +02002056 if (global.tune.maxpollevents <= 0)
2057 global.tune.maxpollevents = MAX_POLL_EVENTS;
2058
Olivier Houchard1599b802018-05-24 18:59:04 +02002059 if (global.tune.runqueue_depth <= 0)
2060 global.tune.runqueue_depth = RUNQUEUE_DEPTH;
2061
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01002062 if (global.tune.recv_enough == 0)
2063 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
2064
Willy Tarreau27097842015-09-28 13:53:23 +02002065 if (global.tune.maxrewrite < 0)
2066 global.tune.maxrewrite = MAXREWRITE;
2067
Willy Tarreau27a674e2009-08-17 07:23:33 +02002068 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
2069 global.tune.maxrewrite = global.tune.bufsize / 2;
2070
Willy Tarreaubaaee002006-06-26 02:48:02 +02002071 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
2072 /* command line debug mode inhibits configuration mode */
William Lallemand095ba4c2017-06-01 17:38:50 +02002073 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002074 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
2075 }
2076
William Lallemand095ba4c2017-06-01 17:38:50 +02002077 if (arg_mode & MODE_DAEMON) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002078 /* command line daemon mode inhibits foreground and debug modes mode */
2079 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
William Lallemand095ba4c2017-06-01 17:38:50 +02002080 global.mode |= arg_mode & MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002081 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002082
2083 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02002084
William Lallemand095ba4c2017-06-01 17:38:50 +02002085 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002086 ha_warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
William Lallemand095ba4c2017-06-01 17:38:50 +02002087 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002088 }
2089
William Lallemand095ba4c2017-06-01 17:38:50 +02002090 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_MWORKER))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002091 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002092 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 +02002093 global.nbproc = 1;
2094 }
2095
2096 if (global.nbproc < 1)
2097 global.nbproc = 1;
2098
Christopher Fauletbe0faa22017-08-29 15:37:10 +02002099 if (global.nbthread < 1)
2100 global.nbthread = 1;
2101
Christopher Faulet3ef26392017-08-29 16:46:57 +02002102 /* Realloc trash buffers because global.tune.bufsize may have changed */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002103 if (!init_trash_buffers(0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002104 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet3ef26392017-08-29 16:46:57 +02002105 exit(1);
2106 }
2107
Christopher Faulet96d44832017-11-14 22:02:30 +01002108 if (!init_log_buffers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002109 ha_alert("failed to initialize log buffers.\n");
Christopher Faulet96d44832017-11-14 22:02:30 +01002110 exit(1);
2111 }
2112
Willy Tarreauef1d1f82007-04-16 00:25:25 +02002113 /*
2114 * Note: we could register external pollers here.
2115 * Built-in pollers have been registered before main().
2116 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02002117
Willy Tarreau43b78992009-01-25 15:42:27 +01002118 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02002119 disable_poller("kqueue");
2120
Willy Tarreau43b78992009-01-25 15:42:27 +01002121 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002122 disable_poller("epoll");
2123
Willy Tarreau43b78992009-01-25 15:42:27 +01002124 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002125 disable_poller("poll");
2126
Willy Tarreau43b78992009-01-25 15:42:27 +01002127 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002128 disable_poller("select");
2129
2130 /* Note: we could disable any poller by name here */
2131
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002132 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02002133 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002134 fprintf(stderr, "\n");
2135 list_filters(stderr);
2136 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002137
Willy Tarreau4f60f162007-04-08 16:39:58 +02002138 if (!init_pollers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002139 ha_alert("No polling mechanism available.\n"
2140 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
2141 " is too low on this platform to support maxconn and the number of listeners\n"
2142 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
2143 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
2144 " global maxconn setting to accommodate the system's limitation. For reference,\n"
2145 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
2146 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
2147 " check build settings using 'haproxy -vv'.\n\n",
2148 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002149 exit(1);
2150 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002151 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2152 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002153 }
2154
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002155 if (!global.node)
2156 global.node = strdup(hostname);
2157
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01002158 if (!hlua_post_init())
2159 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01002160
Maxime de Roucy0f503922016-05-13 23:52:55 +02002161 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002162}
2163
Simon Horman6fb82592011-07-15 13:14:11 +09002164static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09002165{
Simon Hormanac821422011-07-15 13:14:09 +09002166 struct acl_term_suite *suite, *suiteb;
2167 struct acl_term *term, *termb;
2168
Simon Horman6fb82592011-07-15 13:14:11 +09002169 if (!cond)
2170 return;
2171
2172 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
2173 list_for_each_entry_safe(term, termb, &suite->terms, list) {
2174 LIST_DEL(&term->list);
2175 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09002176 }
Simon Horman6fb82592011-07-15 13:14:11 +09002177 LIST_DEL(&suite->list);
2178 free(suite);
2179 }
2180
2181 free(cond);
2182}
2183
2184static void deinit_tcp_rules(struct list *rules)
2185{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02002186 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09002187
2188 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09002189 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09002190 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09002191 free(trule);
2192 }
2193}
2194
Simon Horman6fb82592011-07-15 13:14:11 +09002195static void deinit_stick_rules(struct list *rules)
2196{
2197 struct sticking_rule *rule, *ruleb;
2198
2199 list_for_each_entry_safe(rule, ruleb, rules, list) {
2200 LIST_DEL(&rule->list);
2201 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02002202 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09002203 free(rule);
2204 }
2205}
2206
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002207void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002208{
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002209 struct proxy *p = proxies_list, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002210 struct cap_hdr *h,*h_next;
2211 struct server *s,*s_next;
2212 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002213 struct acl_cond *cond, *condb;
2214 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002215 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002216 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002217 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002218 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002219 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01002220 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002221 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02002222 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01002223 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002224 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002225 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01002226 struct post_deinit_fct *pdf;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002227 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002228
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002229 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002230 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02002231 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002232 free(p->id);
2233 free(p->check_req);
2234 free(p->cookie_name);
2235 free(p->cookie_domain);
2236 free(p->url_param_name);
2237 free(p->capture_name);
2238 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09002239 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02002240 if (p->conf.logformat_string != default_http_log_format &&
2241 p->conf.logformat_string != default_tcp_log_format &&
2242 p->conf.logformat_string != clf_http_log_format)
2243 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02002244
Willy Tarreau62a61232013-04-12 18:13:46 +02002245 free(p->conf.lfs_file);
2246 free(p->conf.uniqueid_format_string);
2247 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08002248 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002249
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002250 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
2251 free(p->conf.logformat_sd_string);
2252 free(p->conf.lfsd_file);
2253
Willy Tarreaua534fea2008-08-03 12:19:50 +02002254 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02002255 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002256
Willy Tarreauf4f04122010-01-28 18:10:50 +01002257 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
2258 LIST_DEL(&cwl->list);
2259 free(cwl->s);
2260 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002261 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002262
Willy Tarreauf4f04122010-01-28 18:10:50 +01002263 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
2264 LIST_DEL(&cwl->list);
2265 free(cwl->s);
2266 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002267 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002268
Willy Tarreaub80c2302007-11-30 20:51:32 +01002269 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
2270 LIST_DEL(&cond->list);
2271 prune_acl_cond(cond);
2272 free(cond);
2273 }
2274
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002275 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002276 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002277 regex_free(exp->preg);
2278 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002279 }
2280
Willy Tarreau98d04852015-05-26 12:18:29 +02002281 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002282 expb = exp;
2283 exp = exp->next;
2284 free(expb);
2285 }
2286
2287 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002288 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002289 regex_free(exp->preg);
2290 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002291 }
2292
Willy Tarreau98d04852015-05-26 12:18:29 +02002293 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002294 expb = exp;
2295 exp = exp->next;
2296 free(expb);
2297 }
2298
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002299 /* build a list of unique uri_auths */
2300 if (!ua)
2301 ua = p->uri_auth;
2302 else {
2303 /* check if p->uri_auth is unique */
2304 for (uap = ua; uap; uap=uap->next)
2305 if (uap == p->uri_auth)
2306 break;
2307
Willy Tarreauaccc4e12008-06-24 11:14:45 +02002308 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002309 /* add it, if it is */
2310 p->uri_auth->next = ua;
2311 ua = p->uri_auth;
2312 }
2313 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002314
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002315 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
2316 LIST_DEL(&acl->list);
2317 prune_acl(acl);
2318 free(acl);
2319 }
2320
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002321 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
2322 LIST_DEL(&srule->list);
2323 prune_acl_cond(srule->cond);
2324 free(srule->cond);
2325 free(srule);
2326 }
2327
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002328 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
2329 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002330 if (rule->cond) {
2331 prune_acl_cond(rule->cond);
2332 free(rule->cond);
Thierry FOURNIER / OZON.IO4ed1c952016-11-24 23:57:54 +01002333 free(rule->file);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002334 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002335 free(rule);
2336 }
2337
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002338 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
2339 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01002340 if (rdr->cond) {
2341 prune_acl_cond(rdr->cond);
2342 free(rdr->cond);
2343 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002344 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01002345 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
2346 LIST_DEL(&lf->list);
2347 free(lf);
2348 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002349 free(rdr);
2350 }
2351
William Lallemand0f99e342011-10-12 17:50:54 +02002352 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
2353 LIST_DEL(&log->list);
2354 free(log);
2355 }
2356
William Lallemand723b73a2012-02-08 16:37:49 +01002357 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
2358 LIST_DEL(&lf->list);
2359 free(lf);
2360 }
2361
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002362 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
2363 LIST_DEL(&lf->list);
2364 free(lf);
2365 }
2366
Simon Hormanac821422011-07-15 13:14:09 +09002367 deinit_tcp_rules(&p->tcp_req.inspect_rules);
2368 deinit_tcp_rules(&p->tcp_req.l4_rules);
2369
Simon Horman6fb82592011-07-15 13:14:11 +09002370 deinit_stick_rules(&p->storersp_rules);
2371 deinit_stick_rules(&p->sticking_rules);
2372
Willy Tarreaubaaee002006-06-26 02:48:02 +02002373 h = p->req_cap;
2374 while (h) {
2375 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002376 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002377 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002378 free(h);
2379 h = h_next;
2380 }/* end while(h) */
2381
2382 h = p->rsp_cap;
2383 while (h) {
2384 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002385 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002386 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002387 free(h);
2388 h = h_next;
2389 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002390
Willy Tarreaubaaee002006-06-26 02:48:02 +02002391 s = p->srv;
2392 while (s) {
2393 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002394
Willy Tarreau5b3a2022012-09-28 15:01:02 +02002395 if (s->check.task) {
2396 task_delete(s->check.task);
2397 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002398 }
Simon Hormand60d6912013-11-25 10:46:36 +09002399 if (s->agent.task) {
2400 task_delete(s->agent.task);
2401 task_free(s->agent.task);
2402 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002403
Willy Tarreau2e993902011-10-31 11:53:20 +01002404 if (s->warmup) {
2405 task_delete(s->warmup);
2406 task_free(s->warmup);
2407 }
2408
Willy Tarreaua534fea2008-08-03 12:19:50 +02002409 free(s->id);
2410 free(s->cookie);
Willy Tarreauc9fa0482018-07-10 17:43:27 +02002411 free(s->check.bi.area);
2412 free(s->check.bo.area);
2413 free(s->agent.bi.area);
2414 free(s->agent.bo.area);
James Brown55f9ff12015-10-21 18:19:05 -07002415 free(s->agent.send_string);
Christopher Faulet67957bd2017-09-27 11:00:59 +02002416 free(s->hostname_dn);
Sárközi, László34c01792014-09-05 10:08:23 +02002417 free((char*)s->conf.file);
Willy Tarreau17d45382016-12-22 21:16:08 +01002418
2419 if (s->use_ssl || s->check.use_ssl) {
2420 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
2421 xprt_get(XPRT_SSL)->destroy_srv(s);
2422 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002423 HA_SPIN_DESTROY(&s->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002424 free(s);
2425 s = s_next;
2426 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002427
Willy Tarreau4348fad2012-09-20 16:48:07 +02002428 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002429 /*
2430 * Zombie proxy, the listener just pretend to be up
2431 * because they still hold an opened fd.
2432 * Close it and give the listener its real state.
2433 */
2434 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
2435 close(l->fd);
2436 l->state = LI_INIT;
2437 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02002438 unbind_listener(l);
2439 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002440 LIST_DEL(&l->by_fe);
2441 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002442 free(l->name);
2443 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002444 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002445 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002446
Willy Tarreau4348fad2012-09-20 16:48:07 +02002447 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002448 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01002449 if (bind_conf->xprt->destroy_bind_conf)
2450 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002451 free(bind_conf->file);
2452 free(bind_conf->arg);
2453 LIST_DEL(&bind_conf->by_fe);
2454 free(bind_conf);
2455 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02002456
Christopher Fauletd7c91962015-04-30 11:48:27 +02002457 flt_deinit(p);
2458
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002459 free(p->desc);
2460 free(p->fwdfor_hdr_name);
2461
Willy Tarreauff011f22011-01-06 17:51:27 +01002462 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06002463 free_http_res_rules(&p->http_res_rules);
Willy Tarreau1f89b182017-11-22 16:53:53 +01002464 task_free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01002465
Willy Tarreaubafbe012017-11-24 17:34:44 +01002466 pool_destroy(p->req_cap_pool);
2467 pool_destroy(p->rsp_cap_pool);
2468 pool_destroy(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002469
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002470 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002471 p = p->next;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002472 HA_SPIN_DESTROY(&p0->lbprm.lock);
2473 HA_SPIN_DESTROY(&p0->lock);
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002474 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002475 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02002476
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002477 while (ua) {
2478 uap = ua;
2479 ua = ua->next;
2480
Willy Tarreaua534fea2008-08-03 12:19:50 +02002481 free(uap->uri_prefix);
2482 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002483 free(uap->node);
2484 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002485
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002486 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01002487 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002488
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002489 free(uap);
2490 }
2491
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002492 userlist_free(userlist);
2493
David Carlier834cb2e2015-09-25 12:02:25 +01002494 cfg_unregister_sections();
2495
Christopher Faulet0132d062017-07-26 15:33:35 +02002496 deinit_log_buffers();
Christopher Faulet748919a2017-07-26 14:59:46 +02002497 deinit_trash_buffers();
David Carlier834cb2e2015-09-25 12:02:25 +01002498
Willy Tarreaudd815982007-10-16 12:25:14 +02002499 protocol_unbind_all();
2500
Willy Tarreau05554e62016-12-21 20:46:26 +01002501 list_for_each_entry(pdf, &post_deinit_list, list)
2502 pdf->fct();
2503
Joe Williamsdf5b38f2010-12-29 17:05:48 +01002504 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02002505 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002506 free(global.chroot); global.chroot = NULL;
2507 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002508 free(global.node); global.node = NULL;
2509 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002510 free(oldpids); oldpids = NULL;
Willy Tarreau1f89b182017-11-22 16:53:53 +01002511 task_free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002512
William Lallemand0f99e342011-10-12 17:50:54 +02002513 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
2514 LIST_DEL(&log->list);
2515 free(log);
2516 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01002517 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02002518 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01002519 LIST_DEL(&wl->list);
2520 free(wl);
2521 }
2522
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002523 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
2524 if (bol->must_free)
2525 free((void *)bol->str);
2526 LIST_DEL(&bol->list);
2527 free(bol);
2528 }
2529
Christopher Fauletff2613e2016-11-09 11:36:17 +01002530 vars_prune(&global.vars, NULL, NULL);
2531
Christopher Fauletad405f12017-08-29 15:30:11 +02002532 deinit_buffer();
2533
Willy Tarreaubafbe012017-11-24 17:34:44 +01002534 pool_destroy(pool_head_stream);
2535 pool_destroy(pool_head_session);
2536 pool_destroy(pool_head_connection);
2537 pool_destroy(pool_head_connstream);
2538 pool_destroy(pool_head_requri);
2539 pool_destroy(pool_head_task);
2540 pool_destroy(pool_head_capture);
2541 pool_destroy(pool_head_pendconn);
2542 pool_destroy(pool_head_sig_handlers);
2543 pool_destroy(pool_head_hdr_idx);
2544 pool_destroy(pool_head_http_txn);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002545 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002546} /* end deinit() */
2547
William Lallemand72160322018-11-06 17:37:16 +01002548
2549
2550/* This is a wrapper for the sockpair FD, It tests if the socket received an
2551 * EOF, if not, it calls listener_accept */
2552void mworker_accept_wrapper(int fd)
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002553{
2554 char c;
William Lallemand72160322018-11-06 17:37:16 +01002555 int ret;
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002556
William Lallemand72160322018-11-06 17:37:16 +01002557 while (1) {
2558 ret = recv(fd, &c, 1, MSG_PEEK);
2559 if (ret == -1) {
2560 if (errno == EINTR)
2561 continue;
2562 if (errno == EAGAIN) {
2563 fd_cant_recv(fd);
2564 return;
2565 }
2566 break;
2567 } else if (ret > 0) {
2568 listener_accept(fd);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002569 return;
William Lallemand72160322018-11-06 17:37:16 +01002570 } else if (ret == 0) {
2571 /* At this step the master is down before
2572 * this worker perform a 'normal' exit.
2573 * So we want to exit with an error but
2574 * other threads could currently process
2575 * some stuff so we can't perform a clean
2576 * deinit().
2577 */
2578 exit(EXIT_FAILURE);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002579 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002580 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002581 return;
2582}
2583
William Lallemand72160322018-11-06 17:37:16 +01002584/*
William Lallemand72160322018-11-06 17:37:16 +01002585 * This function register the accept wrapper for the sockpair of the master worker
2586 */
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002587void mworker_pipe_register()
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002588{
William Lallemand72160322018-11-06 17:37:16 +01002589 /* The iocb should be already initialized with listener_accept */
William Lallemanda90cacf2018-11-07 08:38:32 +01002590 if (fdtab[proc_self->ipc_fd[1]].iocb == mworker_accept_wrapper)
2591 return;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002592
William Lallemandbc193052018-09-11 10:06:26 +02002593 fcntl(proc_self->ipc_fd[1], F_SETFL, O_NONBLOCK);
Emeric Brunc8c0ed92018-10-11 15:27:07 +02002594 /* In multi-tread, we need only one thread to process
2595 * events on the pipe with master
2596 */
William Lallemande260e0d2018-11-08 12:00:14 +01002597 fd_insert(proc_self->ipc_fd[1], fdtab[proc_self->ipc_fd[1]].owner, mworker_accept_wrapper, 1);
William Lallemandbc193052018-09-11 10:06:26 +02002598 fd_want_recv(proc_self->ipc_fd[1]);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002599}
Christopher Fauletdc628a32017-10-19 11:59:44 +02002600
Willy Tarreau918ff602011-07-25 16:33:49 +02002601/* Runs the polling loop */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01002602static void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02002603{
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002604 int next, exp;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002605
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002606 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002607 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002608 /* Process a few tasks */
2609 process_runnable_tasks();
2610
William Lallemand1aab50b2018-06-07 09:46:01 +02002611 /* check if we caught some signals and process them in the
2612 first thread */
2613 if (tid == 0)
2614 signal_process_queue();
Willy Tarreau29857942009-05-10 09:01:21 +02002615
Willy Tarreau58b458d2008-06-29 22:40:23 +02002616 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002617 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002618
Willy Tarreau85c459d2018-08-02 10:54:31 +02002619 /* stop when there's nothing left to do */
2620 if (jobs == 0)
2621 break;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002622
Willy Tarreau10146c92015-04-13 20:44:19 +02002623 /* expire immediately if events are pending */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002624 exp = now_ms;
Christopher Faulet32467fe2018-01-15 12:16:34 +01002625 if (fd_cache_mask & tid_bit)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002626 activity[tid].wake_cache++;
2627 else if (active_tasks_mask & tid_bit)
2628 activity[tid].wake_tasks++;
William Lallemand1aab50b2018-06-07 09:46:01 +02002629 else if (signal_queue_len && tid == 0)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002630 activity[tid].wake_signal++;
Olivier Houchard79321b92018-07-26 17:55:11 +02002631 else {
2632 HA_ATOMIC_OR(&sleeping_thread_mask, tid_bit);
2633 __ha_barrier_store();
2634 if (active_tasks_mask & tid_bit) {
2635 activity[tid].wake_tasks++;
2636 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
2637 } else
2638 exp = next;
2639 }
Willy Tarreau10146c92015-04-13 20:44:19 +02002640
Willy Tarreau58b458d2008-06-29 22:40:23 +02002641 /* The poller will ensure it returns around <next> */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002642 cur_poller.poll(&cur_poller, exp);
Olivier Houchard79321b92018-07-26 17:55:11 +02002643 if (sleeping_thread_mask & tid_bit)
2644 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01002645 fd_process_cached_events();
Emeric Brun64cc49c2017-10-03 14:46:45 +02002646
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002647 activity[tid].loops++;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002648 }
2649}
2650
Christopher Faulet1d17c102017-08-29 15:38:48 +02002651static void *run_thread_poll_loop(void *data)
2652{
2653 struct per_thread_init_fct *ptif;
2654 struct per_thread_deinit_fct *ptdf;
Christopher Fauletda18b9d2018-01-25 16:10:16 +01002655 __decl_hathreads(static HA_SPINLOCK_T start_lock);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002656
Willy Tarreau0c026f42018-08-01 19:12:20 +02002657 ha_set_tid(*((unsigned int *)data));
Christopher Faulet1d17c102017-08-29 15:38:48 +02002658 tv_update_date(-1,-1);
2659
2660 list_for_each_entry(ptif, &per_thread_init_list, list) {
2661 if (!ptif->fct()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002662 ha_alert("failed to initialize thread %u.\n", tid);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002663 exit(1);
2664 }
2665 }
2666
William Lallemandbc193052018-09-11 10:06:26 +02002667 if ((global.mode & MODE_MWORKER) && master == 0) {
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002668 HA_SPIN_LOCK(START_LOCK, &start_lock);
2669 mworker_pipe_register();
2670 HA_SPIN_UNLOCK(START_LOCK, &start_lock);
2671 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002672
2673 protocol_enable_all();
Christopher Faulet1d17c102017-08-29 15:38:48 +02002674 run_poll_loop();
2675
2676 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
2677 ptdf->fct();
2678
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002679#ifdef USE_THREAD
William Lallemand091d8272018-06-24 09:37:03 +02002680 HA_ATOMIC_AND(&all_threads_mask, ~tid_bit);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002681 if (tid > 0)
2682 pthread_exit(NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002683#endif
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002684 return NULL;
2685}
Christopher Faulet1d17c102017-08-29 15:38:48 +02002686
Willy Tarreaue9b26022011-08-01 20:57:55 +02002687/* This is the global management task for listeners. It enables listeners waiting
2688 * for global resources when there are enough free resource, or at least once in
2689 * a while. It is designed to be called as a task.
2690 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02002691static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state)
Willy Tarreaue9b26022011-08-01 20:57:55 +02002692{
2693 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02002694 /* queue is empty, nothing to do */
2695 if (LIST_ISEMPTY(&global_listener_queue))
2696 goto out;
2697
2698 /* If there are still too many concurrent connections, let's wait for
2699 * some of them to go away. We don't need to re-arm the timer because
2700 * each of them will scan the queue anyway.
2701 */
2702 if (unlikely(actconn >= global.maxconn))
2703 goto out;
2704
2705 /* We should periodically try to enable listeners waiting for a global
2706 * resource here, because it is possible, though very unlikely, that
2707 * they have been blocked by a temporary lack of global resource such
2708 * as a file descriptor or memory and that the temporary condition has
2709 * disappeared.
2710 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002711 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02002712
2713 out:
2714 t->expire = next;
2715 task_queue(t);
2716 return t;
2717}
Willy Tarreau4f60f162007-04-08 16:39:58 +02002718
Willy Tarreaubaaee002006-06-26 02:48:02 +02002719int main(int argc, char **argv)
2720{
2721 int err, retry;
2722 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02002723 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02002724 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002725
Olivier Houchard5fa300d2018-02-03 15:15:21 +01002726 setvbuf(stdout, NULL, _IONBF, 0);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002727 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002728 signal_register_fct(SIGQUIT, dump, SIGQUIT);
2729 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
2730 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
William Lallemand73b85e72017-06-01 17:38:51 +02002731 signal_register_fct(SIGUSR2, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002732
Willy Tarreaue437c442010-03-17 18:02:46 +01002733 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
2734 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
2735 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002736 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002737 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002738
Willy Tarreaudc23a922011-02-16 11:10:36 +01002739 /* ulimits */
2740 if (!global.rlimit_nofile)
2741 global.rlimit_nofile = global.maxsock;
2742
2743 if (global.rlimit_nofile) {
2744 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
2745 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02002746 /* try to set it to the max possible at least */
2747 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02002748 limit.rlim_cur = limit.rlim_max;
2749 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
2750 getrlimit(RLIMIT_NOFILE, &limit);
2751
Christopher Faulet767a84b2017-11-24 16:50:31 +01002752 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 +02002753 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002754 }
2755 }
2756
2757 if (global.rlimit_memmax) {
2758 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01002759 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002760#ifdef RLIMIT_AS
2761 if (setrlimit(RLIMIT_AS, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002762 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2763 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002764 }
2765#else
2766 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002767 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2768 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002769 }
2770#endif
2771 }
2772
Olivier Houchardf73629d2017-04-05 22:33:04 +02002773 if (old_unixsocket) {
William Lallemand85b0bd92017-06-01 17:38:53 +02002774 if (strcmp("/dev/null", old_unixsocket) != 0) {
2775 if (get_old_sockets(old_unixsocket) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002776 ha_alert("Failed to get the sockets from the old process!\n");
William Lallemand85b0bd92017-06-01 17:38:53 +02002777 if (!(global.mode & MODE_MWORKER))
2778 exit(1);
2779 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002780 }
2781 }
William Lallemand85b0bd92017-06-01 17:38:53 +02002782 get_cur_unixsocket();
2783
Willy Tarreaubaaee002006-06-26 02:48:02 +02002784 /* We will loop at most 100 times with 10 ms delay each time.
2785 * That's at most 1 second. We only send a signal to old pids
2786 * if we cannot grab at least one port.
2787 */
2788 retry = MAX_START_RETRIES;
2789 err = ERR_NONE;
2790 while (retry >= 0) {
2791 struct timeval w;
2792 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01002793 /* exit the loop on no error or fatal error */
2794 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002795 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02002796 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002797 break;
2798
2799 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
2800 * listening sockets. So on those platforms, it would be wiser to
2801 * simply send SIGUSR1, which will not be undoable.
2802 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02002803 if (tell_old_pids(SIGTTOU) == 0) {
2804 /* no need to wait if we can't contact old pids */
2805 retry = 0;
2806 continue;
2807 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002808 /* give some time to old processes to stop listening */
2809 w.tv_sec = 0;
2810 w.tv_usec = 10*1000;
2811 select(0, NULL, NULL, NULL, &w);
2812 retry--;
2813 }
2814
2815 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01002816 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02002817 if (retry != MAX_START_RETRIES && nb_oldpids) {
2818 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002819 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02002820 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002821 exit(1);
2822 }
2823
2824 if (listeners == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002825 ha_alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002826 /* Note: we don't have to send anything to the old pids because we
2827 * never stopped them. */
2828 exit(1);
2829 }
2830
Emeric Bruncf20bf12010-10-22 16:06:11 +02002831 err = protocol_bind_all(errmsg, sizeof(errmsg));
2832 if ((err & ~ERR_WARN) != ERR_NONE) {
2833 if ((err & ERR_ALERT) || (err & ERR_WARN))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002834 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002835
Christopher Faulet767a84b2017-11-24 16:50:31 +01002836 ha_alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002837 protocol_unbind_all(); /* cleanup everything we can */
2838 if (nb_oldpids)
2839 tell_old_pids(SIGTTIN);
2840 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002841 } else if (err & ERR_WARN) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002842 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02002843 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002844 /* Ok, all listener should now be bound, close any leftover sockets
2845 * the previous process gave us, we don't need them anymore
2846 */
2847 while (xfer_sock_list != NULL) {
2848 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
2849 close(xfer_sock_list->fd);
2850 free(xfer_sock_list->iface);
2851 free(xfer_sock_list->namespace);
2852 free(xfer_sock_list);
2853 xfer_sock_list = tmpxfer;
2854 }
Willy Tarreaudd815982007-10-16 12:25:14 +02002855
Willy Tarreaubaaee002006-06-26 02:48:02 +02002856 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002857 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
2858 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002859
Willy Tarreaubaaee002006-06-26 02:48:02 +02002860 /* MODE_QUIET can inhibit alerts and warnings below this line */
2861
PiBa-NL149a81a2017-12-25 21:03:31 +01002862 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL) {
2863 /* either stdin/out/err are already closed or should stay as they are. */
2864 if ((global.mode & MODE_DAEMON)) {
2865 /* daemon mode re-executing, stdin/stdout/stderr are already closed so keep quiet */
2866 global.mode &= ~MODE_VERBOSE;
2867 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2868 }
2869 } else {
2870 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
2871 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01002872 stdio_quiet(-1);
PiBa-NL149a81a2017-12-25 21:03:31 +01002873 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002874 }
2875
2876 /* open log & pid files before the chroot */
William Lallemand80293002017-11-06 11:00:03 +01002877 if ((global.mode & MODE_DAEMON || global.mode & MODE_MWORKER) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002878 unlink(global.pidfile);
2879 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
2880 if (pidfd < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002881 ha_alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002882 if (nb_oldpids)
2883 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02002884 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002885 exit(1);
2886 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002887 }
2888
Willy Tarreaub38651a2007-03-24 17:24:39 +01002889 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002890 ha_alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
2891 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002892 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01002893 exit(1);
2894 }
2895
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002896 /* If the user is not root, we'll still let him try the configuration
2897 * but we inform him that unexpected behaviour may occur.
2898 */
2899 if ((global.last_checks & LSTCHK_NETADM) && getuid())
Christopher Faulet767a84b2017-11-24 16:50:31 +01002900 ha_warning("[%s.main()] Some options which require full privileges"
2901 " might not work well.\n"
2902 "", argv[0]);
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002903
William Lallemand095ba4c2017-06-01 17:38:50 +02002904 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2905
2906 /* chroot if needed */
2907 if (global.chroot != NULL) {
2908 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002909 ha_alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02002910 if (nb_oldpids)
2911 tell_old_pids(SIGTTIN);
2912 protocol_unbind_all();
2913 exit(1);
2914 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002915 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002916 }
2917
Willy Tarreaubaaee002006-06-26 02:48:02 +02002918 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02002919 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002920
William Lallemand8a361b52017-06-20 11:20:33 +02002921 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
2922 nb_oldpids = 0;
2923 free(oldpids);
2924 oldpids = NULL;
2925 }
2926
2927
Willy Tarreaubaaee002006-06-26 02:48:02 +02002928 /* Note that any error at this stage will be fatal because we will not
2929 * be able to restart the old pids.
2930 */
2931
William Lallemand095ba4c2017-06-01 17:38:50 +02002932 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2933 /* setgid / setuid */
2934 if (global.gid) {
2935 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01002936 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2937 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002938
2939 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002940 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02002941 protocol_unbind_all();
2942 exit(1);
2943 }
2944 }
Michael Schererab012dd2013-01-12 18:35:19 +01002945
William Lallemand095ba4c2017-06-01 17:38:50 +02002946 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002947 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Michael Schererab012dd2013-01-12 18:35:19 +01002948 protocol_unbind_all();
2949 exit(1);
2950 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002951 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002952 /* check ulimits */
2953 limit.rlim_cur = limit.rlim_max = 0;
2954 getrlimit(RLIMIT_NOFILE, &limit);
2955 if (limit.rlim_cur < global.maxsock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002956 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",
2957 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002958 }
2959
William Lallemand095ba4c2017-06-01 17:38:50 +02002960 if (global.mode & (MODE_DAEMON | MODE_MWORKER)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002961 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002962 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002963 int ret = 0;
2964 int proc;
William Lallemande1340412017-12-28 16:09:36 +01002965 int devnullfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002966
William Lallemand73b85e72017-06-01 17:38:51 +02002967 children = calloc(global.nbproc, sizeof(int));
William Lallemand095ba4c2017-06-01 17:38:50 +02002968 /*
2969 * if daemon + mworker: must fork here to let a master
2970 * process live in background before forking children
2971 */
William Lallemand73b85e72017-06-01 17:38:51 +02002972
2973 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)
2974 && (global.mode & MODE_MWORKER)
2975 && (global.mode & MODE_DAEMON)) {
William Lallemand095ba4c2017-06-01 17:38:50 +02002976 ret = fork();
2977 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002978 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002979 protocol_unbind_all();
2980 exit(1); /* there has been an error */
William Lallemandbfd8eb52018-07-04 15:31:23 +02002981 } else if (ret > 0) { /* parent leave to daemonize */
William Lallemand095ba4c2017-06-01 17:38:50 +02002982 exit(0);
William Lallemandbfd8eb52018-07-04 15:31:23 +02002983 } else /* change the process group ID in the child (master process) */
2984 setsid();
William Lallemand095ba4c2017-06-01 17:38:50 +02002985 }
William Lallemande20b6a62017-06-01 17:38:55 +02002986
William Lallemande20b6a62017-06-01 17:38:55 +02002987
William Lallemanddeed7802017-11-06 11:00:04 +01002988 /* if in master-worker mode, write the PID of the father */
2989 if (global.mode & MODE_MWORKER) {
2990 char pidstr[100];
2991 snprintf(pidstr, sizeof(pidstr), "%d\n", getpid());
Willy Tarreau46ec48b2018-01-23 19:20:19 +01002992 if (pidfd >= 0)
2993 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
William Lallemanddeed7802017-11-06 11:00:04 +01002994 }
2995
Willy Tarreaubaaee002006-06-26 02:48:02 +02002996 /* the father launches the required number of processes */
2997 for (proc = 0; proc < global.nbproc; proc++) {
2998 ret = fork();
2999 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003000 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02003001 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02003002 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003003 }
3004 else if (ret == 0) /* child breaks here */
3005 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01003006 children[proc] = ret;
William Lallemand92159b22017-11-06 11:16:12 +01003007 if (pidfd >= 0 && !(global.mode & MODE_MWORKER)) {
Willy Tarreau269ab312012-09-05 08:02:48 +02003008 char pidstr[100];
3009 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01003010 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02003011 }
William Lallemandbc193052018-09-11 10:06:26 +02003012 if (global.mode & MODE_MWORKER) {
William Lallemandce83b4a2018-10-26 14:47:30 +02003013 struct mworker_proc *child;
3014
William Lallemand5d05db82018-11-06 17:37:15 +01003015 qfprintf(stdout, "New worker #%d (%d) forked\n", relative_pid, ret);
William Lallemandce83b4a2018-10-26 14:47:30 +02003016 /* find the right mworker_proc */
3017 list_for_each_entry(child, &proc_list, list) {
3018 if (child->relative_pid == relative_pid &&
3019 child->reloads == 0) {
3020 child->pid = ret;
3021 break;
3022 }
3023 }
William Lallemandbc193052018-09-11 10:06:26 +02003024 }
3025
Willy Tarreaudcd47712007-11-04 23:35:08 +01003026 relative_pid++; /* each child will get a different one */
Willy Tarreau387bd4f2017-11-10 19:08:14 +01003027 pid_bit <<= 1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003028 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003029
3030#ifdef USE_CPU_AFFINITY
3031 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02003032 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003033 global.cpu_map.proc[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003034#ifdef __FreeBSD__
Olivier Houchard97148f62017-08-16 17:29:11 +02003035 {
3036 cpuset_t cpuset;
3037 int i;
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003038 unsigned long cpu_map = global.cpu_map.proc[proc];
Olivier Houchard97148f62017-08-16 17:29:11 +02003039
3040 CPU_ZERO(&cpuset);
3041 while ((i = ffsl(cpu_map)) > 0) {
3042 CPU_SET(i - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003043 cpu_map &= ~(1UL << (i - 1));
Olivier Houchard97148f62017-08-16 17:29:11 +02003044 }
3045 ret = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset), &cpuset);
3046 }
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003047#else
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003048 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map.proc[proc]);
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003049#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003050#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02003051 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02003052 if (pidfd >= 0) {
3053 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
3054 close(pidfd);
3055 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02003056
3057 /* We won't ever use this anymore */
Willy Tarreaud137dd32010-08-25 12:49:05 +02003058 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003059
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003060 if (proc == global.nbproc) {
William Lallemand095ba4c2017-06-01 17:38:50 +02003061 if (global.mode & MODE_MWORKER) {
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003062
3063 if ((!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
3064 (global.mode & MODE_DAEMON)) {
3065 /* detach from the tty, this is required to properly daemonize. */
William Lallemande1340412017-12-28 16:09:36 +01003066 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL))
3067 stdio_quiet(-1);
3068
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003069 global.mode &= ~MODE_VERBOSE;
3070 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003071 }
3072
William Lallemandb3f2be32018-09-11 10:06:18 +02003073 mworker_loop();
William Lallemand1499b9b2017-06-07 15:04:47 +02003074 /* should never get there */
3075 exit(EXIT_FAILURE);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003076 }
William Lallemandcf4e4962017-06-08 19:05:48 +02003077#if defined(USE_OPENSSL) && !defined(OPENSSL_NO_DH)
Grant Zhang872f9c22017-01-21 01:10:18 +00003078 ssl_free_dh();
3079#endif
William Lallemand1499b9b2017-06-07 15:04:47 +02003080 exit(0); /* parent must leave */
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003081 }
3082
William Lallemandcb11fd22017-06-01 17:38:52 +02003083 /* child must never use the atexit function */
3084 atexit_flag = 0;
3085
William Lallemandbc193052018-09-11 10:06:26 +02003086 /* close useless master sockets */
3087 if (global.mode & MODE_MWORKER) {
3088 struct mworker_proc *child, *it;
3089 master = 0;
3090
William Lallemand309dc9a2018-10-26 14:47:45 +02003091 mworker_cli_proxy_stop();
3092
William Lallemandbc193052018-09-11 10:06:26 +02003093 /* free proc struct of other processes */
3094 list_for_each_entry_safe(child, it, &proc_list, list) {
William Lallemandce83b4a2018-10-26 14:47:30 +02003095 /* close the FD of the master side for all
3096 * workers, we don't need to close the worker
3097 * side of other workers since it's done with
3098 * the bind_proc */
3099 close(child->ipc_fd[0]);
3100 if (child->relative_pid == relative_pid &&
3101 child->reloads == 0) {
3102 /* keep this struct if this is our pid */
3103 proc_self = child;
William Lallemandbc193052018-09-11 10:06:26 +02003104 continue;
William Lallemandce83b4a2018-10-26 14:47:30 +02003105 }
William Lallemandbc193052018-09-11 10:06:26 +02003106 LIST_DEL(&child->list);
3107 free(child);
3108 }
3109 }
Willy Tarreau1605c7a2018-01-23 19:01:49 +01003110
William Lallemande1340412017-12-28 16:09:36 +01003111 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
3112 devnullfd = open("/dev/null", O_RDWR, 0);
3113 if (devnullfd < 0) {
3114 ha_alert("Cannot open /dev/null\n");
3115 exit(EXIT_FAILURE);
3116 }
3117 }
3118
William Lallemand095ba4c2017-06-01 17:38:50 +02003119 /* Must chroot and setgid/setuid in the children */
3120 /* chroot if needed */
3121 if (global.chroot != NULL) {
3122 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003123 ha_alert("[%s.main()] Cannot chroot1(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02003124 if (nb_oldpids)
3125 tell_old_pids(SIGTTIN);
3126 protocol_unbind_all();
3127 exit(1);
3128 }
3129 }
3130
3131 free(global.chroot);
3132 global.chroot = NULL;
3133
3134 /* setgid / setuid */
3135 if (global.gid) {
3136 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01003137 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
3138 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02003139
3140 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003141 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003142 protocol_unbind_all();
3143 exit(1);
3144 }
3145 }
3146
3147 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003148 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003149 protocol_unbind_all();
3150 exit(1);
3151 }
3152
William Lallemand7f80eb22017-05-26 18:19:55 +02003153 /* pass through every cli socket, and check if it's bound to
3154 * the current process and if it exposes listeners sockets.
3155 * Caution: the GTUNE_SOCKET_TRANSFER is now set after the fork.
3156 * */
3157
3158 if (global.stats_fe) {
3159 struct bind_conf *bind_conf;
3160
3161 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
3162 if (bind_conf->level & ACCESS_FD_LISTENERS) {
3163 if (!bind_conf->bind_proc || bind_conf->bind_proc & (1UL << proc)) {
3164 global.tune.options |= GTUNE_SOCKET_TRANSFER;
3165 break;
3166 }
3167 }
3168 }
3169 }
3170
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003171 /* we might have to unbind some proxies from some processes */
Olivier Houchardfbc74e82017-11-24 16:54:05 +01003172 px = proxies_list;
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003173 while (px != NULL) {
3174 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02003175 if (!(px->bind_proc & (1UL << proc))) {
3176 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
3177 zombify_proxy(px);
3178 else
3179 stop_proxy(px);
3180 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003181 }
3182 px = px->next;
3183 }
3184
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003185 /* we might have to unbind some peers sections from some processes */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02003186 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003187 if (!curpeers->peers_fe)
3188 continue;
3189
3190 if (curpeers->peers_fe->bind_proc & (1UL << proc))
3191 continue;
3192
3193 stop_proxy(curpeers->peers_fe);
3194 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02003195 signal_unregister_handler(curpeers->sighandler);
3196 task_delete(curpeers->sync_task);
3197 task_free(curpeers->sync_task);
3198 curpeers->sync_task = NULL;
3199 task_free(curpeers->peers_fe->task);
3200 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003201 curpeers->peers_fe = NULL;
3202 }
3203
William Lallemand2e8fad92018-11-13 16:18:23 +01003204 /*
3205 * This is only done in daemon mode because we might want the
3206 * logs on stdout in mworker mode. If we're NOT in QUIET mode,
3207 * we should now close the 3 first FDs to ensure that we can
3208 * detach from the TTY. We MUST NOT do it in other cases since
3209 * it would have already be done, and 0-2 would have been
3210 * affected to listening sockets
Willy Tarreaubaaee002006-06-26 02:48:02 +02003211 */
William Lallemand2e8fad92018-11-13 16:18:23 +01003212 if ((global.mode & MODE_DAEMON) &&
3213 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02003214 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01003215 stdio_quiet(devnullfd);
Willy Tarreau106cb762008-11-16 07:40:34 +01003216 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003217 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
3218 }
3219 pid = getpid(); /* update child's pid */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003220 if (!(global.mode & MODE_MWORKER)) /* in mworker mode we don't want a new pgid for the children */
3221 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02003222 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02003223 }
3224
Christopher Faulete3a5e352017-10-24 13:53:54 +02003225 global.mode &= ~MODE_STARTING;
Willy Tarreau4f60f162007-04-08 16:39:58 +02003226 /*
3227 * That's it : the central polling loop. Run until we stop.
3228 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02003229#ifdef USE_THREAD
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003230 {
Christopher Faulet1d17c102017-08-29 15:38:48 +02003231 unsigned int *tids = calloc(global.nbthread, sizeof(unsigned int));
3232 pthread_t *threads = calloc(global.nbthread, sizeof(pthread_t));
3233 int i;
William Lallemand1aab50b2018-06-07 09:46:01 +02003234 sigset_t blocked_sig, old_sig;
Christopher Faulet1d17c102017-08-29 15:38:48 +02003235
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003236 /* Init tids array */
3237 for (i = 0; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003238 tids[i] = i;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003239
William Lallemand1aab50b2018-06-07 09:46:01 +02003240 /* ensure the signals will be blocked in every thread */
3241 sigfillset(&blocked_sig);
3242 sigdelset(&blocked_sig, SIGPROF);
3243 sigdelset(&blocked_sig, SIGBUS);
3244 sigdelset(&blocked_sig, SIGFPE);
3245 sigdelset(&blocked_sig, SIGILL);
3246 sigdelset(&blocked_sig, SIGSEGV);
3247 pthread_sigmask(SIG_SETMASK, &blocked_sig, &old_sig);
3248
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003249 /* Create nbthread-1 thread. The first thread is the current process */
3250 threads[0] = pthread_self();
3251 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003252 pthread_create(&threads[i], NULL, &run_thread_poll_loop, &tids[i]);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003253
Christopher Faulet62519022017-10-16 15:49:32 +02003254#ifdef USE_CPU_AFFINITY
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003255 /* Now the CPU affinity for all threads */
3256 for (i = 0; i < global.nbthread; i++) {
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003257 if (global.cpu_map.proc[relative_pid-1])
3258 global.cpu_map.thread[relative_pid-1][i] &= global.cpu_map.proc[relative_pid-1];
Christopher Faulet62519022017-10-16 15:49:32 +02003259
Willy Tarreau421f02e2018-01-20 18:19:22 +01003260 if (i < MAX_THREADS && /* only the first 32/64 threads may be pinned */
Olivier Houchard829aa242017-12-01 18:19:43 +01003261 global.cpu_map.thread[relative_pid-1][i]) {/* only do this if the thread has a THREAD map */
3262#if defined(__FreeBSD__) || defined(__NetBSD__)
3263 cpuset_t cpuset;
3264#else
3265 cpu_set_t cpuset;
3266#endif
3267 int j;
3268 unsigned long cpu_map = global.cpu_map.thread[relative_pid-1][i];
3269
3270 CPU_ZERO(&cpuset);
3271
3272 while ((j = ffsl(cpu_map)) > 0) {
3273 CPU_SET(j - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003274 cpu_map &= ~(1UL << (j - 1));
Olivier Houchard829aa242017-12-01 18:19:43 +01003275 }
Christopher Faulet62519022017-10-16 15:49:32 +02003276 pthread_setaffinity_np(threads[i],
Olivier Houchard829aa242017-12-01 18:19:43 +01003277 sizeof(cpuset), &cpuset);
3278 }
Christopher Faulet1d17c102017-08-29 15:38:48 +02003279 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003280#endif /* !USE_CPU_AFFINITY */
3281
William Lallemand1aab50b2018-06-07 09:46:01 +02003282 /* when multithreading we need to let only the thread 0 handle the signals */
William Lallemandd3801c12018-09-11 10:06:23 +02003283 haproxy_unblock_signals();
William Lallemand1aab50b2018-06-07 09:46:01 +02003284
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003285 /* Finally, start the poll loop for the first thread */
3286 run_thread_poll_loop(&tids[0]);
3287
3288 /* Wait the end of other threads */
3289 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003290 pthread_join(threads[i], NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003291
Christopher Faulet1d17c102017-08-29 15:38:48 +02003292 free(tids);
3293 free(threads);
3294
Christopher Fauletb79a94c2017-05-30 15:34:30 +02003295#if defined(DEBUG_THREAD) || defined(DEBUG_FULL)
3296 show_lock_stats();
3297#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003298 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003299#else /* ! USE_THREAD */
William Lallemandd3801c12018-09-11 10:06:23 +02003300 haproxy_unblock_signals();
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003301 run_thread_poll_loop((int []){0});
Christopher Faulet62519022017-10-16 15:49:32 +02003302
Christopher Faulet62519022017-10-16 15:49:32 +02003303#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003304
3305 /* Do some cleanup */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003306 deinit();
Christopher Faulet1d17c102017-08-29 15:38:48 +02003307
Willy Tarreaubaaee002006-06-26 02:48:02 +02003308 exit(0);
3309}
3310
3311
3312/*
3313 * Local variables:
3314 * c-indent-level: 8
3315 * c-basic-offset: 8
3316 * End:
3317 */