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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 Tarreau5794fb02018-11-25 18:43:29 +010078#include <common/initcall.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020079#include <common/memory.h>
80#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010081#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020082#include <common/regex.h>
83#include <common/standard.h>
84#include <common/time.h>
85#include <common/uri_auth.h>
86#include <common/version.h>
Christopher Fauletbe0faa22017-08-29 15:37:10 +020087#include <common/hathreads.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020088
89#include <types/capture.h>
William Lallemandce83b4a2018-10-26 14:47:30 +020090#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020091#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020092#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090093#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020094#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020095
Willy Tarreau0fc45a72007-06-17 00:36:03 +020096#include <proto/acl.h>
Willy Tarreau609aad92018-11-22 08:31:09 +010097#include <proto/activity.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020098#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020099#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200100#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200101#include <proto/channel.h>
William Lallemandce83b4a2018-10-26 14:47:30 +0200102#include <proto/cli.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200103#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200104#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200105#include <proto/filters.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +0200106#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100107#include <proto/hlua.h>
Willy Tarreau61c112a2018-10-02 16:43:32 +0200108#include <proto/http_rules.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200109#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200110#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100111#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200112#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +0100113#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200114#include <proto/proxy.h>
115#include <proto/queue.h>
116#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200117#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200118#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200119#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200120#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200121#include <proto/dns.h>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100122#include <proto/vars.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200123#ifdef USE_OPENSSL
Grant Zhang872f9c22017-01-21 01:10:18 +0000124#include <proto/ssl_sock.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200125#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200126
Willy Tarreau477ecd82010-01-03 21:12:30 +0100127/* list of config files */
128static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200129int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100130int relative_pid = 1; /* process id starting at 1 */
Willy Tarreau387bd4f2017-11-10 19:08:14 +0100131unsigned long pid_bit = 1; /* bit corresponding to the process id */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200132
Olivier Houchard79321b92018-07-26 17:55:11 +0200133volatile unsigned long sleeping_thread_mask; /* Threads that are about to sleep in poll() */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200134/* global options */
135struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100136 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100137 .nbproc = 1,
Christopher Fauletbe0faa22017-08-29 15:37:10 +0200138 .nbthread = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200139 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200140 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100141 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100142 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100143 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200144 .unix_bind = {
145 .ux = {
146 .uid = -1,
147 .gid = -1,
148 .mode = 0,
149 }
150 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200151 .tune = {
Willy Tarreauc77d3642018-12-12 06:19:42 +0100152 .bufsize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Willy Tarreau27097842015-09-28 13:53:23 +0200153 .maxrewrite = -1,
Willy Tarreauc77d3642018-12-12 06:19:42 +0100154 .chksize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Willy Tarreaua24adf02014-11-27 01:11:56 +0100155 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200156 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200157#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100158 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200159#endif
William Lallemandf3747832012-11-09 12:33:10 +0100160 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100161#ifdef DEFAULT_IDLE_TIMER
162 .idle_timer = DEFAULT_IDLE_TIMER,
163#else
164 .idle_timer = 1000, /* 1 second */
165#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200166 },
Emeric Brun76d88952012-10-05 15:47:31 +0200167#ifdef USE_OPENSSL
168#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200169 .maxsslconn = DEFAULT_MAXSSLCONN,
170#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200171#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200172 /* others NULL OK */
173};
174
175/*********************************************************************/
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, ...) */
William Lallemanda7199262018-11-16 16:57:20 +0100180int unstoppable_jobs = 0; /* number of active jobs that can't be stopped during a soft stop */
Willy Tarreau199ad242018-11-05 16:31:22 +0100181int active_peers = 0; /* number of active peers (connection attempts and connected) */
Willy Tarreau2d372c22018-11-05 17:12:27 +0100182int connected_peers = 0; /* number of connected peers (verified ones) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200183
184/* Here we store informations about the pids of the processes we may pause
185 * or kill. We will send them a signal every 10 ms until we can bind to all
186 * our ports. With 200 retries, that's about 2 seconds.
187 */
188#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200189static int *oldpids = NULL;
190static int oldpids_sig; /* use USR1 or TERM */
191
Olivier Houchardf73629d2017-04-05 22:33:04 +0200192/* Path to the unix socket we use to retrieve listener sockets from the old process */
193static const char *old_unixsocket;
194
William Lallemand85b0bd92017-06-01 17:38:53 +0200195static char *cur_unixsocket = NULL;
196
William Lallemandcb11fd22017-06-01 17:38:52 +0200197int atexit_flag = 0;
198
William Lallemand91723742018-11-06 17:37:14 +0100199static int exitcode = -1;
200
Willy Tarreaubb545b42010-08-25 12:58:59 +0200201int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200202const int zero = 0;
203const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200204const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200205
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100206char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200207char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200208
Willy Tarreau89efaed2013-12-13 15:14:55 +0100209/* used from everywhere just to drain results we don't want to read and which
210 * recent versions of gcc increasingly and annoyingly complain about.
211 */
212int shut_your_big_mouth_gcc_int = 0;
213
William Lallemand73b85e72017-06-01 17:38:51 +0200214int *children = NULL; /* store PIDs of children in master workers mode */
215
William Lallemand73b85e72017-06-01 17:38:51 +0200216static char **next_argv = NULL;
217
William Lallemandbc193052018-09-11 10:06:26 +0200218struct list proc_list = LIST_HEAD_INIT(proc_list);
219
220int master = 0; /* 1 if in master, 0 if in child */
221
William Lallemand16dd1b32018-11-19 18:46:18 +0100222struct mworker_proc *proc_self = NULL;
William Lallemandbc193052018-09-11 10:06:26 +0200223
Willy Tarreau08ceb102011-07-24 22:58:00 +0200224/* list of the temporarily limited listeners because of lack of resource */
225struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200226struct task *global_listener_queue_task;
Olivier Houchard9f6af332018-05-25 14:04:04 +0200227static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200228
William Lallemandb3f2be32018-09-11 10:06:18 +0200229static void *run_thread_poll_loop(void *data);
230
Willy Tarreauff055502014-04-28 22:27:06 +0200231/* bitfield of a few warnings to emit just once (WARN_*) */
232unsigned int warned = 0;
233
William Lallemande7361152018-10-26 14:47:36 +0200234/* master CLI configuration (-S flag) */
235struct list mworker_cli_conf = LIST_HEAD_INIT(mworker_cli_conf);
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100236
237/* These are strings to be reported in the output of "haproxy -vv". They may
238 * either be constants (in which case must_free must be zero) or dynamically
239 * allocated strings to pass to free() on exit, and in this case must_free
240 * must be non-zero.
241 */
242struct list build_opts_list = LIST_HEAD_INIT(build_opts_list);
243struct build_opts_str {
244 struct list list;
245 const char *str;
246 int must_free;
247};
248
Willy Tarreaue6945732016-12-21 19:57:00 +0100249/* These functions are called just after the point where the program exits
250 * after a config validity check, so they are generally suited for resource
251 * allocation and slow initializations that should be skipped during basic
252 * config checks. The functions must return 0 on success, or a combination
253 * of ERR_* flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause
254 * and immediate exit, so the function must have emitted any useful error.
255 */
256struct list post_check_list = LIST_HEAD_INIT(post_check_list);
257struct post_check_fct {
258 struct list list;
259 int (*fct)();
260};
261
Willy Tarreau05554e62016-12-21 20:46:26 +0100262/* These functions are called when freeing the global sections at the end
263 * of deinit, after everything is stopped. They don't return anything, and
264 * they work in best effort mode as their sole goal is to make valgrind
265 * mostly happy.
266 */
267struct list post_deinit_list = LIST_HEAD_INIT(post_deinit_list);
268struct post_deinit_fct {
269 struct list list;
270 void (*fct)();
271};
272
Christopher Faulet415f6112017-07-25 16:52:58 +0200273/* These functions are called for each thread just after the thread creation
274 * and before running the scheduler. They should be used to do per-thread
275 * initializations. They must return 0 if an error occurred. */
276struct list per_thread_init_list = LIST_HEAD_INIT(per_thread_init_list);
277struct per_thread_init_fct {
278 struct list list;
279 int (*fct)();
280};
281
282/* These functions are called for each thread just after the scheduler loop and
283 * before exiting the thread. They don't return anything and, as for post-deinit
284 * functions, they work in best effort mode as their sole goal is to make
285 * valgrind mostly happy. */
286struct list per_thread_deinit_list = LIST_HEAD_INIT(per_thread_deinit_list);
287struct per_thread_deinit_fct {
288 struct list list;
289 void (*fct)();
290};
291
Willy Tarreaubaaee002006-06-26 02:48:02 +0200292/*********************************************************************/
293/* general purpose functions ***************************************/
294/*********************************************************************/
295
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100296/* used to register some build option strings at boot. Set must_free to
297 * non-zero if the string must be freed upon exit.
298 */
299void hap_register_build_opts(const char *str, int must_free)
300{
301 struct build_opts_str *b;
302
303 b = calloc(1, sizeof(*b));
304 if (!b) {
305 fprintf(stderr, "out of memory\n");
306 exit(1);
307 }
308 b->str = str;
309 b->must_free = must_free;
310 LIST_ADDQ(&build_opts_list, &b->list);
311}
312
Willy Tarreaue6945732016-12-21 19:57:00 +0100313/* used to register some initialization functions to call after the checks. */
314void hap_register_post_check(int (*fct)())
315{
316 struct post_check_fct *b;
317
318 b = calloc(1, sizeof(*b));
319 if (!b) {
320 fprintf(stderr, "out of memory\n");
321 exit(1);
322 }
323 b->fct = fct;
324 LIST_ADDQ(&post_check_list, &b->list);
325}
326
Willy Tarreau05554e62016-12-21 20:46:26 +0100327/* used to register some de-initialization functions to call after everything
328 * has stopped.
329 */
330void hap_register_post_deinit(void (*fct)())
331{
332 struct post_deinit_fct *b;
333
334 b = calloc(1, sizeof(*b));
335 if (!b) {
336 fprintf(stderr, "out of memory\n");
337 exit(1);
338 }
339 b->fct = fct;
340 LIST_ADDQ(&post_deinit_list, &b->list);
341}
342
Christopher Faulet415f6112017-07-25 16:52:58 +0200343/* used to register some initialization functions to call for each thread. */
344void hap_register_per_thread_init(int (*fct)())
345{
346 struct per_thread_init_fct *b;
347
348 b = calloc(1, sizeof(*b));
349 if (!b) {
350 fprintf(stderr, "out of memory\n");
351 exit(1);
352 }
353 b->fct = fct;
354 LIST_ADDQ(&per_thread_init_list, &b->list);
355}
356
357/* used to register some de-initialization functions to call for each thread. */
358void hap_register_per_thread_deinit(void (*fct)())
359{
360 struct per_thread_deinit_fct *b;
361
362 b = calloc(1, sizeof(*b));
363 if (!b) {
364 fprintf(stderr, "out of memory\n");
365 exit(1);
366 }
367 b->fct = fct;
368 LIST_ADDQ(&per_thread_deinit_list, &b->list);
369}
370
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100371static void display_version()
Willy Tarreaubaaee002006-06-26 02:48:02 +0200372{
Willy Tarreau909b9d82019-01-04 18:20:32 +0100373 printf("HA-Proxy version %s %s - https://haproxy.org/\n", haproxy_version, haproxy_date);
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) {
William Lallemand6e0d8ae2018-12-14 19:31:21 +0100542 if (child->pid > -1)
543 memprintf(&msg, "%s|type=%c;fd=%d;pid=%d;rpid=%d;reloads=%d;timestamp=%d", msg ? msg : "", child->type, child->ipc_fd[0], child->pid, child->relative_pid, child->reloads, child->timestamp);
William Lallemandbc193052018-09-11 10:06:26 +0200544 }
545 if (msg)
William Lallemand16dd1b32018-11-19 18:46:18 +0100546 setenv("HAPROXY_PROCESSES", msg, 1);
William Lallemandbc193052018-09-11 10:06:26 +0200547}
548
549/*
550 * unserialize the proc list from the environment
551 */
552static void mworker_env_to_proc_list()
553{
554 char *msg, *token = NULL, *s1;
555
William Lallemand16dd1b32018-11-19 18:46:18 +0100556 msg = getenv("HAPROXY_PROCESSES");
William Lallemandbc193052018-09-11 10:06:26 +0200557 if (!msg)
558 return;
559
560 while ((token = strtok_r(msg, "|", &s1))) {
561 struct mworker_proc *child;
562 char *subtoken = NULL;
563 char *s2;
564
565 msg = NULL;
566
567 child = calloc(1, sizeof(*child));
568
569 while ((subtoken = strtok_r(token, ";", &s2))) {
570
571 token = NULL;
572
William Lallemand16dd1b32018-11-19 18:46:18 +0100573 if (strncmp(subtoken, "type=", 5) == 0) {
574 child->type = *(subtoken+5);
575 if (child->type == 'm') /* we are in the master, assign it */
576 proc_self = child;
577 } else if (strncmp(subtoken, "fd=", 3) == 0) {
William Lallemandbc193052018-09-11 10:06:26 +0200578 child->ipc_fd[0] = atoi(subtoken+3);
579 } else if (strncmp(subtoken, "pid=", 4) == 0) {
580 child->pid = atoi(subtoken+4);
581 } else if (strncmp(subtoken, "rpid=", 5) == 0) {
582 child->relative_pid = atoi(subtoken+5);
William Lallemandf1a62862018-10-26 14:47:29 +0200583 } else if (strncmp(subtoken, "reloads=", 8) == 0) {
584 /* we reloaded this process once more */
585 child->reloads = atoi(subtoken+8) + 1;
William Lallemande3683302018-11-19 18:46:17 +0100586 } else if (strncmp(subtoken, "timestamp=", 10) == 0) {
587 child->timestamp = atoi(subtoken+10);
William Lallemandbc193052018-09-11 10:06:26 +0200588 }
589 }
590 if (child->pid)
591 LIST_ADDQ(&proc_list, &child->list);
592 else
593 free(child);
594 }
595
William Lallemand16dd1b32018-11-19 18:46:18 +0100596 unsetenv("HAPROXY_PROCESSES");
William Lallemand73b85e72017-06-01 17:38:51 +0200597}
598
Willy Tarreaubaaee002006-06-26 02:48:02 +0200599/*
William Lallemand75ea0a02017-11-15 19:02:58 +0100600 * Upon a reload, the master worker needs to close all listeners FDs but the mworker_pipe
601 * fd, and the FD provided by fd@
602 */
603static void mworker_cleanlisteners()
604{
605 struct listener *l, *l_next;
606 struct proxy *curproxy;
Willy Tarreau473cf5d2017-12-05 11:14:12 +0100607 struct peers *curpeers;
William Lallemand75ea0a02017-11-15 19:02:58 +0100608
William Lallemand3da97692018-09-11 10:06:19 +0200609 /* we might have to unbind some peers sections from some processes */
610 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
611 if (!curpeers->peers_fe)
612 continue;
Willy Tarreau473cf5d2017-12-05 11:14:12 +0100613
William Lallemand3da97692018-09-11 10:06:19 +0200614 stop_proxy(curpeers->peers_fe);
615 /* disable this peer section so that it kills itself */
616 signal_unregister_handler(curpeers->sighandler);
617 task_delete(curpeers->sync_task);
618 task_free(curpeers->sync_task);
619 curpeers->sync_task = NULL;
620 task_free(curpeers->peers_fe->task);
621 curpeers->peers_fe->task = NULL;
622 curpeers->peers_fe = NULL;
623 }
William Lallemand75ea0a02017-11-15 19:02:58 +0100624
William Lallemand91c13b62018-09-11 10:06:20 +0200625 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
William Lallemand2fd45fa2018-12-03 20:34:44 +0100626 int listen_in_master = 0;
627
William Lallemand75ea0a02017-11-15 19:02:58 +0100628 list_for_each_entry_safe(l, l_next, &curproxy->conf.listeners, by_fe) {
William Lallemande22f11f2018-09-11 10:06:27 +0200629 /* remove the listener, but not those we need in the master... */
William Lallemanddd319a52018-10-12 10:39:54 +0200630 if (!(l->options & LI_O_MWORKER)) {
631 /* unbind the listener but does not close if
632 the FD is inherited with fd@ from the parent
633 process */
634 if (l->options & LI_O_INHERITED)
635 unbind_listener_no_close(l);
636 else
637 unbind_listener(l);
William Lallemande22f11f2018-09-11 10:06:27 +0200638 delete_listener(l);
William Lallemand2fd45fa2018-12-03 20:34:44 +0100639 } else {
640 listen_in_master = 1;
William Lallemanddd319a52018-10-12 10:39:54 +0200641 }
William Lallemand75ea0a02017-11-15 19:02:58 +0100642 }
William Lallemand2fd45fa2018-12-03 20:34:44 +0100643 /* if the proxy shouldn't be in the master, we stop it */
644 if (!listen_in_master)
645 curproxy->state = PR_STSTOPPED;
William Lallemand75ea0a02017-11-15 19:02:58 +0100646 }
647}
648
649
650/*
William Lallemand73b85e72017-06-01 17:38:51 +0200651 * remove a pid forom the olpid array and decrease nb_oldpids
652 * return 1 pid was found otherwise return 0
653 */
654
655int delete_oldpid(int pid)
656{
657 int i;
658
659 for (i = 0; i < nb_oldpids; i++) {
660 if (oldpids[i] == pid) {
661 oldpids[i] = oldpids[nb_oldpids - 1];
662 oldpids[nb_oldpids - 1] = 0;
663 nb_oldpids--;
664 return 1;
665 }
666 }
667 return 0;
668}
669
William Lallemand85b0bd92017-06-01 17:38:53 +0200670
671static void get_cur_unixsocket()
672{
673 /* if -x was used, try to update the stat socket if not available anymore */
674 if (global.stats_fe) {
675 struct bind_conf *bind_conf;
676
677 /* pass through all stats socket */
678 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
679 struct listener *l;
680
681 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
682
683 if (l->addr.ss_family == AF_UNIX &&
684 (bind_conf->level & ACCESS_FD_LISTENERS)) {
685 const struct sockaddr_un *un;
686
687 un = (struct sockaddr_un *)&l->addr;
688 /* priority to old_unixsocket */
689 if (!cur_unixsocket) {
690 cur_unixsocket = strdup(un->sun_path);
691 } else {
692 if (old_unixsocket && !strcmp(un->sun_path, old_unixsocket)) {
693 free(cur_unixsocket);
694 cur_unixsocket = strdup(old_unixsocket);
695 return;
696 }
697 }
698 }
699 }
700 }
701 }
702 if (!cur_unixsocket && old_unixsocket)
703 cur_unixsocket = strdup(old_unixsocket);
704}
705
William Lallemand73b85e72017-06-01 17:38:51 +0200706/*
707 * When called, this function reexec haproxy with -sf followed by current
Joseph Herlant03420902018-11-15 10:41:50 -0800708 * children PIDs and possibly old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200709 */
William Lallemanda57b7e32018-12-14 21:11:31 +0100710void mworker_reload()
William Lallemand73b85e72017-06-01 17:38:51 +0200711{
712 int next_argc = 0;
713 int j;
714 char *msg = NULL;
William Lallemand7c756a82018-11-26 11:53:40 +0100715 struct per_thread_deinit_fct *ptdf;
William Lallemand73b85e72017-06-01 17:38:51 +0200716
717 mworker_block_signals();
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100718#if defined(USE_SYSTEMD)
719 if (global.tune.options & GTUNE_USE_SYSTEMD)
720 sd_notify(0, "RELOADING=1");
721#endif
William Lallemand73b85e72017-06-01 17:38:51 +0200722 setenv("HAPROXY_MWORKER_REEXEC", "1", 1);
723
William Lallemandbc193052018-09-11 10:06:26 +0200724 mworker_proc_list_to_env(); /* put the children description in the env */
725
William Lallemand7c756a82018-11-26 11:53:40 +0100726 /* during the reload we must ensure that every FDs that can't be
727 * reuse (ie those that are not referenced in the proc_list)
728 * are closed or they will leak. */
729
730 /* close the listeners FD */
731 mworker_cli_proxy_stop();
732 /* close the poller FD and the thread waker pipe FD */
733 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
734 ptdf->fct();
735 if (fdtab)
736 deinit_pollers();
737
William Lallemand73b85e72017-06-01 17:38:51 +0200738 /* compute length */
739 while (next_argv[next_argc])
740 next_argc++;
741
William Lallemand85b0bd92017-06-01 17:38:53 +0200742 /* 1 for haproxy -sf, 2 for -x /socket */
743 next_argv = realloc(next_argv, (next_argc + 1 + 2 + global.nbproc + nb_oldpids + 1) * sizeof(char *));
William Lallemand73b85e72017-06-01 17:38:51 +0200744 if (next_argv == NULL)
745 goto alloc_error;
746
747
748 /* add -sf <PID>* to argv */
749 if (children || nb_oldpids > 0)
750 next_argv[next_argc++] = "-sf";
751 if (children) {
752 for (j = 0; j < global.nbproc; next_argc++,j++) {
753 next_argv[next_argc] = memprintf(&msg, "%d", children[j]);
754 if (next_argv[next_argc] == NULL)
755 goto alloc_error;
756 msg = NULL;
757 }
758 }
759 /* copy old process PIDs */
760 for (j = 0; j < nb_oldpids; next_argc++,j++) {
761 next_argv[next_argc] = memprintf(&msg, "%d", oldpids[j]);
762 if (next_argv[next_argc] == NULL)
763 goto alloc_error;
764 msg = NULL;
765 }
766 next_argv[next_argc] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200767
William Lallemand2bf6d622017-06-20 11:20:23 +0200768 /* add the -x option with the stat socket */
William Lallemand85b0bd92017-06-01 17:38:53 +0200769 if (cur_unixsocket) {
770
William Lallemand2bf6d622017-06-20 11:20:23 +0200771 next_argv[next_argc++] = "-x";
772 next_argv[next_argc++] = (char *)cur_unixsocket;
773 next_argv[next_argc++] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200774 }
775
Christopher Faulet767a84b2017-11-24 16:50:31 +0100776 ha_warning("Reexecuting Master process\n");
Tim Duesterhus0436ab72017-11-12 17:39:18 +0100777 execvp(next_argv[0], next_argv);
William Lallemand73b85e72017-06-01 17:38:51 +0200778
Christopher Faulet767a84b2017-11-24 16:50:31 +0100779 ha_warning("Failed to reexecute the master process [%d]: %s\n", pid, strerror(errno));
William Lallemand722d4ca2017-11-15 19:02:55 +0100780 return;
781
William Lallemand73b85e72017-06-01 17:38:51 +0200782alloc_error:
Joseph Herlant07a08342018-11-15 10:43:05 -0800783 ha_warning("Failed to reexecute the master process [%d]: Cannot allocate memory\n", pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200784 return;
785}
786
William Lallemand73b85e72017-06-01 17:38:51 +0200787/*
William Lallemandb3f2be32018-09-11 10:06:18 +0200788 * When called, this function reexec haproxy with -sf followed by current
Joseph Herlant03420902018-11-15 10:41:50 -0800789 * children PIDs and possibly old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200790 */
William Lallemandb3f2be32018-09-11 10:06:18 +0200791static void mworker_catch_sighup(struct sig_handler *sh)
William Lallemand73b85e72017-06-01 17:38:51 +0200792{
William Lallemandb3f2be32018-09-11 10:06:18 +0200793 mworker_reload();
794}
William Lallemand73b85e72017-06-01 17:38:51 +0200795
William Lallemandb3f2be32018-09-11 10:06:18 +0200796static void mworker_catch_sigterm(struct sig_handler *sh)
797{
798 int sig = sh->arg;
William Lallemand2f8b31c2017-11-15 19:02:56 +0100799
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100800#if defined(USE_SYSTEMD)
William Lallemandb3f2be32018-09-11 10:06:18 +0200801 if (global.tune.options & GTUNE_USE_SYSTEMD) {
802 sd_notify(0, "STOPPING=1");
803 }
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100804#endif
William Lallemandb3f2be32018-09-11 10:06:18 +0200805 ha_warning("Exiting Master process...\n");
806 mworker_kill(sig);
807}
William Lallemand73b85e72017-06-01 17:38:51 +0200808
William Lallemandb3f2be32018-09-11 10:06:18 +0200809/*
810 * Wait for every children to exit
811 */
William Lallemand73b85e72017-06-01 17:38:51 +0200812
William Lallemandb3f2be32018-09-11 10:06:18 +0200813static void mworker_catch_sigchld(struct sig_handler *sh)
814{
815 int exitpid = -1;
816 int status = 0;
William Lallemandbc193052018-09-11 10:06:26 +0200817 struct mworker_proc *child, *it;
William Lallemand73b85e72017-06-01 17:38:51 +0200818
William Lallemandb3f2be32018-09-11 10:06:18 +0200819restart_wait:
William Lallemand73b85e72017-06-01 17:38:51 +0200820
William Lallemandb3f2be32018-09-11 10:06:18 +0200821 exitpid = waitpid(-1, &status, WNOHANG);
822 if (exitpid > 0) {
William Lallemand73b85e72017-06-01 17:38:51 +0200823 if (WIFEXITED(status))
824 status = WEXITSTATUS(status);
825 else if (WIFSIGNALED(status))
826 status = 128 + WTERMSIG(status);
827 else if (WIFSTOPPED(status))
828 status = 128 + WSTOPSIG(status);
829 else
830 status = 255;
831
William Lallemandbc193052018-09-11 10:06:26 +0200832 list_for_each_entry_safe(child, it, &proc_list, list) {
833 if (child->pid != exitpid)
834 continue;
835
836 LIST_DEL(&child->list);
837 close(child->ipc_fd[0]);
William Lallemandbc193052018-09-11 10:06:26 +0200838 break;
839 }
840
William Lallemand73b85e72017-06-01 17:38:51 +0200841 if (!children) {
William Lallemand18e52a82018-11-06 17:37:13 +0100842 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 +0200843 } else {
844 /* check if exited child was in the current children list */
845 if (current_child(exitpid)) {
William Lallemand18e52a82018-11-06 17:37:13 +0100846 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 +0200847 if (status != 0 && status != 130 && status != 143
William Lallemand4cfede82017-11-24 22:02:34 +0100848 && !(global.tune.options & GTUNE_NOEXIT_ONFAILURE)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100849 ha_alert("exit-on-failure: killing every workers with SIGTERM\n");
William Lallemand91723742018-11-06 17:37:14 +0100850 if (exitcode < 0)
851 exitcode = status;
William Lallemand69f9b3b2017-06-01 17:38:54 +0200852 mworker_kill(SIGTERM);
853 }
William Lallemand73b85e72017-06-01 17:38:51 +0200854 } else {
William Lallemand18e52a82018-11-06 17:37:13 +0100855 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 +0200856 delete_oldpid(exitpid);
857 }
858 }
William Lallemand18e52a82018-11-06 17:37:13 +0100859 free(child);
860
William Lallemandb3f2be32018-09-11 10:06:18 +0200861 /* do it again to check if it was the last worker */
862 goto restart_wait;
William Lallemand73b85e72017-06-01 17:38:51 +0200863 }
William Lallemandb3f2be32018-09-11 10:06:18 +0200864 /* Better rely on the system than on a list of process to check if it was the last one */
865 else if (exitpid == -1 && errno == ECHILD) {
William Lallemand18e52a82018-11-06 17:37:13 +0100866 ha_warning("All workers exited. Exiting... (%d)\n", (exitcode > 0) ? exitcode : status);
William Lallemandb3f2be32018-09-11 10:06:18 +0200867 atexit_flag = 0;
William Lallemand91723742018-11-06 17:37:14 +0100868 if (exitcode > 0)
869 exit(exitcode);
William Lallemandb3f2be32018-09-11 10:06:18 +0200870 exit(status); /* parent must leave using the latest status code known */
871 }
872
William Lallemand73b85e72017-06-01 17:38:51 +0200873}
874
William Lallemandb3f2be32018-09-11 10:06:18 +0200875static void mworker_loop()
876{
877
878#if defined(USE_SYSTEMD)
879 if (global.tune.options & GTUNE_USE_SYSTEMD)
880 sd_notifyf(0, "READY=1\nMAINPID=%lu", (unsigned long)getpid());
881#endif
882
William Lallemandbc193052018-09-11 10:06:26 +0200883 master = 1;
884
William Lallemand0564d412018-11-20 17:36:53 +0100885 signal_unregister(SIGUSR1);
886 signal_unregister(SIGHUP);
887 signal_unregister(SIGQUIT);
888
William Lallemandb3f2be32018-09-11 10:06:18 +0200889 signal_register_fct(SIGTERM, mworker_catch_sigterm, SIGTERM);
890 signal_register_fct(SIGUSR1, mworker_catch_sigterm, SIGUSR1);
891 signal_register_fct(SIGINT, mworker_catch_sigterm, SIGINT);
892 signal_register_fct(SIGHUP, mworker_catch_sighup, SIGHUP);
893 signal_register_fct(SIGUSR2, mworker_catch_sighup, SIGUSR2);
894 signal_register_fct(SIGCHLD, mworker_catch_sigchld, SIGCHLD);
895
896 mworker_unblock_signals();
897 mworker_cleanlisteners();
William Lallemand27f3fa52018-12-06 14:05:20 +0100898 mworker_cleantasks();
William Lallemandb3f2be32018-09-11 10:06:18 +0200899
William Lallemandbc193052018-09-11 10:06:26 +0200900 mworker_catch_sigchld(NULL); /* ensure we clean the children in case
901 some SIGCHLD were lost */
902
William Lallemandb3f2be32018-09-11 10:06:18 +0200903 global.nbthread = 1;
904 relative_pid = 1;
905 pid_bit = 1;
906
William Lallemand2672eb92018-12-14 15:52:39 +0100907#ifdef USE_THREAD
908 tid_bit = 1;
909 all_threads_mask = 1;
910#endif
911
William Lallemandb3f2be32018-09-11 10:06:18 +0200912 jobs++; /* this is the "master" job, we want to take care of the
913 signals even if there is no listener so the poll loop don't
914 leave */
915
916 fork_poller();
917 run_thread_poll_loop((int []){0});
918}
William Lallemandcb11fd22017-06-01 17:38:52 +0200919
920/*
921 * Reexec the process in failure mode, instead of exiting
922 */
923void reexec_on_failure()
924{
925 if (!atexit_flag)
926 return;
927
928 setenv("HAPROXY_MWORKER_WAIT_ONLY", "1", 1);
929
Christopher Faulet767a84b2017-11-24 16:50:31 +0100930 ha_warning("Reexecuting Master process in waitpid mode\n");
William Lallemandcb11fd22017-06-01 17:38:52 +0200931 mworker_reload();
William Lallemandcb11fd22017-06-01 17:38:52 +0200932}
William Lallemand73b85e72017-06-01 17:38:51 +0200933
934
935/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200936 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
937 * a signal zero to all subscribers. This means that it's as easy as
938 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200939 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100940static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200941{
942 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200943 signal_unregister_handler(sh);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100944 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200945}
946
947/*
948 * upon SIGTTOU, we pause everything
949 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100950static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200951{
952 pause_proxies();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100953 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200954}
955
956/*
957 * upon SIGTTIN, let's have a soft stop.
958 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100959static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200960{
Willy Tarreaube58c382011-07-24 18:28:10 +0200961 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200962}
963
964/*
965 * this function dumps every server's state when the process receives SIGHUP.
966 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100967static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200968{
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100969 struct proxy *p = proxies_list;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200970
Christopher Faulet767a84b2017-11-24 16:50:31 +0100971 ha_warning("SIGHUP received, dumping servers states.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200972 while (p) {
973 struct server *s = p->srv;
974
975 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
976 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100977 chunk_printf(&trash,
978 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
979 p->id, s->id,
Emeric Brun52a91d32017-08-31 14:41:55 +0200980 (s->cur_state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100981 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200982 ha_warning("%s\n", trash.area);
983 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200984 s = s->next;
985 }
986
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200987 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
988 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100989 chunk_printf(&trash,
990 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
991 p->id,
992 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 +0200993 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100994 chunk_printf(&trash,
995 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
996 p->id,
997 (p->srv_bck) ? "is running on backup servers" : "has no server available",
998 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 +0200999 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01001000 chunk_printf(&trash,
1001 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
1002 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
1003 p->id, p->srv_act, p->srv_bck,
1004 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 +02001005 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001006 ha_warning("%s\n", trash.area);
1007 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001008
1009 p = p->next;
1010 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001011}
1012
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001013static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001014{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001015 /* dump memory usage then free everything possible */
1016 dump_pools();
Willy Tarreaubafbe012017-11-24 17:34:44 +01001017 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001018}
1019
William Lallemande1340412017-12-28 16:09:36 +01001020/*
1021 * This function dup2 the stdio FDs (0,1,2) with <fd>, then closes <fd>
1022 * If <fd> < 0, it opens /dev/null and use it to dup
1023 *
1024 * In the case of chrooting, you have to open /dev/null before the chroot, and
1025 * pass the <fd> to this function
1026 */
1027static void stdio_quiet(int fd)
1028{
1029 if (fd < 0)
1030 fd = open("/dev/null", O_RDWR, 0);
1031
1032 if (fd > -1) {
1033 fclose(stdin);
1034 fclose(stdout);
1035 fclose(stderr);
1036
1037 dup2(fd, 0);
1038 dup2(fd, 1);
1039 dup2(fd, 2);
1040 if (fd > 2)
1041 close(fd);
1042 return;
1043 }
1044
1045 ha_alert("Cannot open /dev/null\n");
1046 exit(EXIT_FAILURE);
1047}
1048
1049
Joseph Herlant03420902018-11-15 10:41:50 -08001050/* This function checks if cfg_cfgfiles contains directories.
1051 * If it finds one, it adds all the files (and only files) it contains
1052 * in cfg_cfgfiles in place of the directory (and removes the directory).
1053 * It adds the files in lexical order.
1054 * It adds only files with .cfg extension.
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001055 * It doesn't add files with name starting with '.'
1056 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001057static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001058{
1059 struct wordlist *wl, *wlb;
1060 char *err = NULL;
1061
1062 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1063 struct stat file_stat;
1064 struct dirent **dir_entries = NULL;
1065 int dir_entries_nb;
1066 int dir_entries_it;
1067
1068 if (stat(wl->s, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001069 ha_alert("Cannot open configuration file/directory %s : %s\n",
1070 wl->s,
1071 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001072 exit(1);
1073 }
1074
1075 if (!S_ISDIR(file_stat.st_mode))
1076 continue;
1077
1078 /* from this point wl->s is a directory */
1079
1080 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
1081 if (dir_entries_nb < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001082 ha_alert("Cannot open configuration directory %s : %s\n",
1083 wl->s,
1084 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001085 exit(1);
1086 }
1087
1088 /* for each element in the directory wl->s */
1089 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
1090 struct dirent *dir_entry = dir_entries[dir_entries_it];
1091 char *filename = NULL;
1092 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
1093
1094 /* don't add filename that begin with .
Joseph Herlant03420902018-11-15 10:41:50 -08001095 * only add filename with .cfg extension
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001096 */
1097 if (dir_entry->d_name[0] == '.' ||
1098 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
1099 goto next_dir_entry;
1100
1101 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001102 ha_alert("Cannot load configuration files %s : out of memory.\n",
1103 filename);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001104 exit(1);
1105 }
1106
1107 if (stat(filename, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001108 ha_alert("Cannot open configuration file %s : %s\n",
1109 wl->s,
1110 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001111 exit(1);
1112 }
1113
1114 /* don't add anything else than regular file in cfg_cfgfiles
1115 * this way we avoid loops
1116 */
1117 if (!S_ISREG(file_stat.st_mode))
1118 goto next_dir_entry;
1119
1120 if (!list_append_word(&wl->list, filename, &err)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001121 ha_alert("Cannot load configuration files %s : %s\n",
1122 filename,
1123 err);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001124 exit(1);
1125 }
1126
1127next_dir_entry:
1128 free(filename);
1129 free(dir_entry);
1130 }
1131
1132 free(dir_entries);
1133
1134 /* remove the current directory (wl) from cfg_cfgfiles */
1135 free(wl->s);
1136 LIST_DEL(&wl->list);
1137 free(wl);
1138 }
1139
1140 free(err);
1141}
1142
Olivier Houchardf73629d2017-04-05 22:33:04 +02001143static int get_old_sockets(const char *unixsocket)
1144{
1145 char *cmsgbuf = NULL, *tmpbuf = NULL;
1146 int *tmpfd = NULL;
1147 struct sockaddr_un addr;
1148 struct cmsghdr *cmsg;
1149 struct msghdr msghdr;
1150 struct iovec iov;
1151 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +02001152 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +02001153 int sock = -1;
1154 int ret = -1;
1155 int ret2 = -1;
1156 int fd_nb;
1157 int got_fd = 0;
1158 int i = 0;
1159 size_t maxoff = 0, curoff = 0;
1160
1161 memset(&msghdr, 0, sizeof(msghdr));
1162 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
1163 if (!cmsgbuf) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001164 ha_warning("Failed to allocate memory to send sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001165 goto out;
1166 }
1167 sock = socket(PF_UNIX, SOCK_STREAM, 0);
1168 if (sock < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001169 ha_warning("Failed to connect to the old process socket '%s'\n",
1170 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001171 goto out;
1172 }
1173 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path));
1174 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
1175 addr.sun_family = PF_UNIX;
1176 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
1177 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001178 ha_warning("Failed to connect to the old process socket '%s'\n",
1179 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001180 goto out;
1181 }
Olivier Houchard54740872017-04-06 14:45:14 +02001182 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001183 iov.iov_base = &fd_nb;
1184 iov.iov_len = sizeof(fd_nb);
1185 msghdr.msg_iov = &iov;
1186 msghdr.msg_iovlen = 1;
1187 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
1188 /* First, get the number of file descriptors to be received */
1189 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001190 ha_warning("Failed to get the number of sockets to be transferred !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001191 goto out;
1192 }
1193 if (fd_nb == 0) {
1194 ret = 0;
1195 goto out;
1196 }
Olivier Houchardf143b802017-11-04 15:13:01 +01001197 tmpbuf = malloc(fd_nb * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int)));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001198 if (tmpbuf == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001199 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001200 goto out;
1201 }
1202 tmpfd = malloc(fd_nb * sizeof(int));
1203 if (tmpfd == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001204 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001205 goto out;
1206 }
1207 msghdr.msg_control = cmsgbuf;
1208 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
Olivier Houchardf143b802017-11-04 15:13:01 +01001209 iov.iov_len = MAX_SEND_FD * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001210 do {
1211 int ret3;
1212
1213 iov.iov_base = tmpbuf + curoff;
1214 ret = recvmsg(sock, &msghdr, 0);
1215 if (ret == -1 && errno == EINTR)
1216 continue;
1217 if (ret <= 0)
1218 break;
1219 /* Send an ack to let the sender know we got the sockets
1220 * and it can send some more
1221 */
1222 do {
1223 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
1224 } while (ret3 == -1 && errno == EINTR);
1225 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
1226 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
1227 if (cmsg->cmsg_level == SOL_SOCKET &&
1228 cmsg->cmsg_type == SCM_RIGHTS) {
1229 size_t totlen = cmsg->cmsg_len -
1230 CMSG_LEN(0);
1231 if (totlen / sizeof(int) + got_fd > fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001232 ha_warning("Got to many sockets !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001233 goto out;
1234 }
1235 /*
1236 * Be paranoid and use memcpy() to avoid any
1237 * potential alignement issue.
1238 */
1239 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
1240 got_fd += totlen / sizeof(int);
1241 }
1242 }
1243 curoff += ret;
1244 } while (got_fd < fd_nb);
1245
1246 if (got_fd != fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001247 ha_warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
1248 fd_nb, got_fd);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001249 goto out;
1250 }
1251 maxoff = curoff;
1252 curoff = 0;
1253 for (i = 0; i < got_fd; i++) {
1254 int fd = tmpfd[i];
1255 socklen_t socklen;
1256 int len;
1257
1258 xfer_sock = calloc(1, sizeof(*xfer_sock));
1259 if (!xfer_sock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001260 ha_warning("Failed to allocate memory in get_old_sockets() !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001261 break;
1262 }
1263 xfer_sock->fd = -1;
1264
1265 socklen = sizeof(xfer_sock->addr);
1266 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001267 ha_warning("Failed to get socket address\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001268 free(xfer_sock);
Olivier Houchardbe7b1ce2017-07-17 17:25:33 +02001269 xfer_sock = NULL;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001270 continue;
1271 }
1272 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001273 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001274 goto out;
1275 }
1276 len = tmpbuf[curoff++];
1277 if (len > 0) {
1278 /* We have a namespace */
1279 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001280 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001281 goto out;
1282 }
1283 xfer_sock->namespace = malloc(len + 1);
1284 if (!xfer_sock->namespace) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001285 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001286 goto out;
1287 }
1288 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
1289 xfer_sock->namespace[len] = 0;
1290 curoff += len;
1291 }
1292 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001293 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001294 goto out;
1295 }
1296 len = tmpbuf[curoff++];
1297 if (len > 0) {
1298 /* We have an interface */
1299 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001300 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001301 goto out;
1302 }
1303 xfer_sock->iface = malloc(len + 1);
1304 if (!xfer_sock->iface) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001305 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001306 goto out;
1307 }
1308 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
Olivier Houchard33e083c2018-03-15 17:48:49 +01001309 xfer_sock->iface[len] = 0;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001310 curoff += len;
1311 }
1312 if (curoff + sizeof(int) > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001313 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001314 goto out;
1315 }
1316 memcpy(&xfer_sock->options, &tmpbuf[curoff],
1317 sizeof(xfer_sock->options));
1318 curoff += sizeof(xfer_sock->options);
1319
1320 xfer_sock->fd = fd;
1321 if (xfer_sock_list)
1322 xfer_sock_list->prev = xfer_sock;
1323 xfer_sock->next = xfer_sock_list;
1324 xfer_sock->prev = NULL;
1325 xfer_sock_list = xfer_sock;
1326 xfer_sock = NULL;
1327 }
1328
1329 ret2 = 0;
1330out:
1331 /* If we failed midway make sure to close the remaining
1332 * file descriptors
1333 */
1334 if (tmpfd != NULL && i < got_fd) {
1335 for (; i < got_fd; i++) {
1336 close(tmpfd[i]);
1337 }
1338 }
1339 free(tmpbuf);
1340 free(tmpfd);
1341 free(cmsgbuf);
1342 if (sock != -1)
1343 close(sock);
1344 if (xfer_sock) {
1345 free(xfer_sock->namespace);
1346 free(xfer_sock->iface);
1347 if (xfer_sock->fd != -1)
1348 close(xfer_sock->fd);
1349 free(xfer_sock);
1350 }
1351 return (ret2);
1352}
1353
Willy Tarreaubaaee002006-06-26 02:48:02 +02001354/*
William Lallemand73b85e72017-06-01 17:38:51 +02001355 * copy and cleanup the current argv
1356 * Remove the -sf /-st parameters
1357 * Return an allocated copy of argv
1358 */
1359
1360static char **copy_argv(int argc, char **argv)
1361{
1362 char **newargv;
William Lallemand2bf6d622017-06-20 11:20:23 +02001363 int i = 0, j = 0;
William Lallemand73b85e72017-06-01 17:38:51 +02001364
1365 newargv = calloc(argc + 2, sizeof(char *));
1366 if (newargv == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001367 ha_warning("Cannot allocate memory\n");
William Lallemand73b85e72017-06-01 17:38:51 +02001368 return NULL;
1369 }
1370
William Lallemand2bf6d622017-06-20 11:20:23 +02001371 while (i < argc) {
1372 /* -sf or -st or -x */
William Lallemand29f690c2018-01-09 23:12:27 +01001373 if (i > 0 && argv[i][0] == '-' &&
1374 ((argv[i][1] == 's' && (argv[i][2] == 'f' || argv[i][2] == 't')) || argv[i][1] == 'x' )) {
William Lallemand2bf6d622017-06-20 11:20:23 +02001375 /* list of pids to finish ('f') or terminate ('t') or unix socket (-x) */
William Lallemand73b85e72017-06-01 17:38:51 +02001376 i++;
1377 while (i < argc && argv[i][0] != '-') {
1378 i++;
1379 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001380 continue;
William Lallemand73b85e72017-06-01 17:38:51 +02001381 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001382
1383 newargv[j++] = argv[i++];
William Lallemand73b85e72017-06-01 17:38:51 +02001384 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001385
William Lallemand73b85e72017-06-01 17:38:51 +02001386 return newargv;
1387}
1388
1389/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001390 * This function initializes all the necessary variables. It only returns
1391 * if everything is OK. If something fails, it exits.
1392 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001393static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001394{
Willy Tarreaubaaee002006-06-26 02:48:02 +02001395 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001396 char *tmp;
1397 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +02001398 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +02001399 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +01001400 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +00001401 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +02001402 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +02001403 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +01001404 struct post_check_fct *pcf;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001405
Christopher Faulete3a5e352017-10-24 13:53:54 +02001406 global.mode = MODE_STARTING;
William Lallemand73b85e72017-06-01 17:38:51 +02001407 next_argv = copy_argv(argc, argv);
1408
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001409 if (!init_trash_buffers(1)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001410 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet748919a2017-07-26 14:59:46 +02001411 exit(1);
1412 }
David du Colombier7af46052012-05-16 14:16:48 +02001413
Emeric Brun2b920a12010-09-23 18:30:22 +02001414 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
1415 * the string in case of truncation, and at least FreeBSD appears not to do
1416 * it.
1417 */
1418 memset(hostname, 0, sizeof(hostname));
1419 gethostname(hostname, sizeof(hostname) - 1);
1420 memset(localpeer, 0, sizeof(localpeer));
1421 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
William Lallemanddaf4cd22018-04-17 16:46:13 +02001422 setenv("HAPROXY_LOCALPEER", localpeer, 1);
Emeric Brun2b920a12010-09-23 18:30:22 +02001423
Willy Tarreaubaaee002006-06-26 02:48:02 +02001424 /*
1425 * Initialize the previously static variables.
1426 */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001427
Willy Tarreau173d9952018-01-26 21:48:23 +01001428 totalconn = actconn = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001429 killed = 0;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001430
Willy Tarreaubaaee002006-06-26 02:48:02 +02001431
1432#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +01001433 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001434#endif
1435
Benoit GARNIERb413c2a2016-03-27 11:08:03 +02001436 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001437 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001438 start_date = now;
1439
Willy Tarreau84310e22014-02-14 11:59:04 +01001440 srandom(now_ms - getpid());
1441
Willy Tarreau8ed669b2013-01-11 15:49:37 +01001442 if (init_acl() != 0)
1443 exit(1);
Willy Tarreaub6b3df32018-11-26 16:31:20 +01001444
Willy Tarreau8280d642009-09-23 23:37:52 +02001445 /* warning, we init buffers later */
Willy Tarreau04f1e2d2018-09-10 18:04:24 +02001446 if (!init_http(&err_msg)) {
1447 ha_alert("%s. Aborting.\n", err_msg);
1448 free(err_msg);
1449 abort();
1450 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001451
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001452 /* Initialise lua. */
1453 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001454
Christopher Fauletff2613e2016-11-09 11:36:17 +01001455 /* Initialize process vars */
1456 vars_init(&global.vars, SCOPE_PROC);
1457
Willy Tarreau43b78992009-01-25 15:42:27 +01001458 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001459#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001460 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001461#endif
1462#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001463 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001464#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001465#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +01001466 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001467#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001468#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001469 global.tune.options |= GTUNE_USE_SPLICE;
1470#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001471#if defined(USE_GETADDRINFO)
1472 global.tune.options |= GTUNE_USE_GAI;
1473#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001474#if defined(SO_REUSEPORT)
1475 global.tune.options |= GTUNE_USE_REUSEPORT;
1476#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001477
1478 pid = getpid();
1479 progname = *argv;
1480 while ((tmp = strchr(progname, '/')) != NULL)
1481 progname = tmp + 1;
1482
Kevinm48936af2010-12-22 16:08:21 +00001483 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +02001484 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +00001485
Willy Tarreaubaaee002006-06-26 02:48:02 +02001486 argc--; argv++;
1487 while (argc > 0) {
1488 char *flag;
1489
1490 if (**argv == '-') {
1491 flag = *argv+1;
1492
1493 /* 1 arg */
1494 if (*flag == 'v') {
1495 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +01001496 if (flag[1] == 'v') /* -vv */
1497 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001498 exit(0);
1499 }
1500#if defined(ENABLE_EPOLL)
1501 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +01001502 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001503#endif
1504#if defined(ENABLE_POLL)
1505 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +01001506 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001507#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +02001508#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001509 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +01001510 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001511#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001512#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001513 else if (*flag == 'd' && flag[1] == 'S')
1514 global.tune.options &= ~GTUNE_USE_SPLICE;
1515#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001516#if defined(USE_GETADDRINFO)
1517 else if (*flag == 'd' && flag[1] == 'G')
1518 global.tune.options &= ~GTUNE_USE_GAI;
1519#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001520#if defined(SO_REUSEPORT)
1521 else if (*flag == 'd' && flag[1] == 'R')
1522 global.tune.options &= ~GTUNE_USE_REUSEPORT;
1523#endif
Emeric Brun850efd52014-01-29 12:24:34 +01001524 else if (*flag == 'd' && flag[1] == 'V')
1525 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001526 else if (*flag == 'V')
1527 arg_mode |= MODE_VERBOSE;
1528 else if (*flag == 'd' && flag[1] == 'b')
1529 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +02001530 else if (*flag == 'd' && flag[1] == 'M')
1531 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +01001532 else if (*flag == 'd' && flag[1] == 'r')
1533 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001534 else if (*flag == 'd')
1535 arg_mode |= MODE_DEBUG;
1536 else if (*flag == 'c')
1537 arg_mode |= MODE_CHECK;
William Lallemand095ba4c2017-06-01 17:38:50 +02001538 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +02001539 arg_mode |= MODE_DAEMON;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001540 else if (*flag == 'W' && flag[1] == 's') {
Lukas Tribusf46bf952017-11-21 12:39:34 +01001541 arg_mode |= MODE_MWORKER | MODE_FOREGROUND;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001542#if defined(USE_SYSTEMD)
1543 global.tune.options |= GTUNE_USE_SYSTEMD;
1544#else
Christopher Faulet767a84b2017-11-24 16:50:31 +01001545 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 +01001546 usage(progname);
1547#endif
1548 }
William Lallemand095ba4c2017-06-01 17:38:50 +02001549 else if (*flag == 'W')
1550 arg_mode |= MODE_MWORKER;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001551 else if (*flag == 'q')
1552 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001553 else if (*flag == 'x') {
William Lallemand45eff442017-06-19 15:57:55 +02001554 if (argc <= 1 || argv[1][0] == '-') {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001555 ha_alert("Unix socket path expected with the -x flag\n\n");
William Lallemand45eff442017-06-19 15:57:55 +02001556 usage(progname);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001557 }
William Lallemand4fc09692017-06-19 16:37:19 +02001558 if (old_unixsocket)
Christopher Faulet767a84b2017-11-24 16:50:31 +01001559 ha_warning("-x option already set, overwriting the value\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001560 old_unixsocket = argv[1];
William Lallemand4fc09692017-06-19 16:37:19 +02001561
Olivier Houchardf73629d2017-04-05 22:33:04 +02001562 argv++;
1563 argc--;
1564 }
William Lallemande7361152018-10-26 14:47:36 +02001565 else if (*flag == 'S') {
1566 struct wordlist *c;
1567
1568 if (argc <= 1 || argv[1][0] == '-') {
1569 ha_alert("Socket and optional bind parameters expected with the -S flag\n");
1570 usage(progname);
1571 }
1572 if ((c = malloc(sizeof(*c))) == NULL || (c->s = strdup(argv[1])) == NULL) {
1573 ha_alert("Cannot allocate memory\n");
1574 exit(EXIT_FAILURE);
1575 }
1576 LIST_ADD(&mworker_cli_conf, &c->list);
1577
1578 argv++;
1579 argc--;
1580 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001581 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
1582 /* list of pids to finish ('f') or terminate ('t') */
1583
1584 if (flag[1] == 'f')
1585 oldpids_sig = SIGUSR1; /* finish then exit */
1586 else
1587 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001588 while (argc > 1 && argv[1][0] != '-') {
Chris Lane236062f2018-02-05 23:15:44 +00001589 char * endptr = NULL;
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001590 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
1591 if (!oldpids) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001592 ha_alert("Cannot allocate old pid : out of memory.\n");
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001593 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001594 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001595 argc--; argv++;
Chris Lane236062f2018-02-05 23:15:44 +00001596 errno = 0;
1597 oldpids[nb_oldpids] = strtol(*argv, &endptr, 10);
1598 if (errno) {
1599 ha_alert("-%2s option: failed to parse {%s}: %s\n",
1600 flag,
1601 *argv, strerror(errno));
1602 exit(1);
1603 } else if (endptr && strlen(endptr)) {
1604 while (isspace(*endptr)) endptr++;
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001605 if (*endptr != 0) {
Chris Lane236062f2018-02-05 23:15:44 +00001606 ha_alert("-%2s option: some bytes unconsumed in PID list {%s}\n",
1607 flag, endptr);
1608 exit(1);
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001609 }
Chris Lane236062f2018-02-05 23:15:44 +00001610 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001611 if (oldpids[nb_oldpids] <= 0)
1612 usage(progname);
1613 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001614 }
1615 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001616 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
1617 /* now that's a cfgfile list */
1618 argv++; argc--;
1619 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001620 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001621 ha_alert("Cannot load configuration file/directory %s : %s\n",
1622 *argv,
1623 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +02001624 exit(1);
1625 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001626 argv++; argc--;
1627 }
1628 break;
1629 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001630 else { /* >=2 args */
1631 argv++; argc--;
1632 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001633 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001634
1635 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +02001636 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001637 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +01001638 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001639 case 'N' : cfg_maxpconn = atol(*argv); break;
William Lallemanddaf4cd22018-04-17 16:46:13 +02001640 case 'L' :
1641 strncpy(localpeer, *argv, sizeof(localpeer) - 1);
1642 setenv("HAPROXY_LOCALPEER", localpeer, 1);
1643 break;
Willy Tarreau5d01a632009-06-22 16:02:30 +02001644 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +02001645 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001646 ha_alert("Cannot load configuration file/directory %s : %s\n",
1647 *argv,
1648 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +02001649 exit(1);
1650 }
Willy Tarreau5d01a632009-06-22 16:02:30 +02001651 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001652 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001653 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001654 }
1655 }
1656 }
1657 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001658 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001659 argv++; argc--;
1660 }
1661
Christopher Faulete3a5e352017-10-24 13:53:54 +02001662 global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
1663 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001664
William Lallemand944e6192018-11-21 15:48:31 +01001665 if (getenv("HAPROXY_MWORKER_WAIT_ONLY")) {
William Lallemandcb11fd22017-06-01 17:38:52 +02001666 unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
William Lallemand944e6192018-11-21 15:48:31 +01001667 global.mode |= MODE_MWORKER_WAIT;
1668 global.mode &= ~MODE_MWORKER;
William Lallemandcb11fd22017-06-01 17:38:52 +02001669 }
1670
1671 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") != NULL)) {
1672 atexit_flag = 1;
1673 atexit(reexec_on_failure);
1674 }
1675
Willy Tarreau576132e2011-09-10 19:26:56 +02001676 if (change_dir && chdir(change_dir) < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001677 ha_alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
Willy Tarreau576132e2011-09-10 19:26:56 +02001678 exit(1);
1679 }
1680
Willy Tarreaubaaee002006-06-26 02:48:02 +02001681 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001682
1683 init_default_instance();
1684
William Lallemand944e6192018-11-21 15:48:31 +01001685 /* in wait mode, we don't try to read the configuration files */
1686 if (!(global.mode & MODE_MWORKER_WAIT)) {
Willy Tarreauc4382422009-12-06 13:10:44 +01001687
William Lallemand944e6192018-11-21 15:48:31 +01001688 /* handle cfgfiles that are actually directories */
1689 cfgfiles_expand_directories();
1690
1691 if (LIST_ISEMPTY(&cfg_cfgfiles))
1692 usage(progname);
1693
1694
1695 list_for_each_entry(wl, &cfg_cfgfiles, list) {
1696 int ret;
1697
1698 ret = readcfgfile(wl->s);
1699 if (ret == -1) {
1700 ha_alert("Could not open configuration file %s : %s\n",
1701 wl->s, strerror(errno));
1702 exit(1);
1703 }
1704 if (ret & (ERR_ABORT|ERR_FATAL))
1705 ha_alert("Error(s) found in configuration file : %s\n", wl->s);
1706 err_code |= ret;
1707 if (err_code & ERR_ABORT)
1708 exit(1);
Willy Tarreauc4382422009-12-06 13:10:44 +01001709 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001710
William Lallemand944e6192018-11-21 15:48:31 +01001711 /* do not try to resolve arguments nor to spot inconsistencies when
1712 * the configuration contains fatal errors caused by files not found
1713 * or failed memory allocations.
1714 */
1715 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1716 ha_alert("Fatal errors found in configuration.\n");
1717 exit(1);
1718 }
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001719 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001720 if (global.mode & MODE_MWORKER) {
1721 int proc;
William Lallemand16dd1b32018-11-19 18:46:18 +01001722 struct mworker_proc *tmproc;
1723
1724 if (getenv("HAPROXY_MWORKER_REEXEC") == NULL) {
1725
1726 tmproc = malloc(sizeof(*tmproc));
1727 if (!tmproc) {
1728 ha_alert("Cannot allocate process structures.\n");
1729 exit(EXIT_FAILURE);
1730 }
1731 tmproc->type = 'm'; /* master */
1732 tmproc->reloads = 0;
1733 tmproc->relative_pid = 0;
1734 tmproc->pid = pid;
1735 tmproc->timestamp = start_date.tv_sec;
1736 tmproc->ipc_fd[0] = -1;
1737 tmproc->ipc_fd[1] = -1;
1738
1739 proc_self = tmproc;
1740
1741 LIST_ADDQ(&proc_list, &tmproc->list);
1742 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001743
1744 for (proc = 0; proc < global.nbproc; proc++) {
William Lallemandce83b4a2018-10-26 14:47:30 +02001745
1746 tmproc = malloc(sizeof(*tmproc));
1747 if (!tmproc) {
1748 ha_alert("Cannot allocate process structures.\n");
1749 exit(EXIT_FAILURE);
1750 }
1751
William Lallemand16dd1b32018-11-19 18:46:18 +01001752 tmproc->type = 'w'; /* worker */
William Lallemandce83b4a2018-10-26 14:47:30 +02001753 tmproc->pid = -1;
1754 tmproc->reloads = 0;
William Lallemande3683302018-11-19 18:46:17 +01001755 tmproc->timestamp = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001756 tmproc->relative_pid = 1 + proc;
William Lallemand550db6d2018-11-06 17:37:12 +01001757 tmproc->ipc_fd[0] = -1;
1758 tmproc->ipc_fd[1] = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001759
1760 if (mworker_cli_sockpair_new(tmproc, proc) < 0) {
1761 exit(EXIT_FAILURE);
1762 }
1763
1764 LIST_ADDQ(&proc_list, &tmproc->list);
1765 }
William Lallemand944e6192018-11-21 15:48:31 +01001766 }
1767 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
1768 struct wordlist *it, *c;
1769
William Lallemand1b663612018-10-26 14:47:33 +02001770 mworker_env_to_proc_list(); /* get the info of the children in the env */
William Lallemand8a022572018-10-26 14:47:35 +02001771
William Lallemande7361152018-10-26 14:47:36 +02001772
William Lallemand550db6d2018-11-06 17:37:12 +01001773 if (!LIST_ISEMPTY(&mworker_cli_conf)) {
William Lallemande7361152018-10-26 14:47:36 +02001774
William Lallemand550db6d2018-11-06 17:37:12 +01001775 if (mworker_cli_proxy_create() < 0) {
William Lallemande7361152018-10-26 14:47:36 +02001776 ha_alert("Can't create the master's CLI.\n");
1777 exit(EXIT_FAILURE);
1778 }
William Lallemande7361152018-10-26 14:47:36 +02001779
William Lallemand550db6d2018-11-06 17:37:12 +01001780 list_for_each_entry_safe(c, it, &mworker_cli_conf, list) {
1781
1782 if (mworker_cli_proxy_new_listener(c->s) < 0) {
1783 ha_alert("Can't create the master's CLI.\n");
1784 exit(EXIT_FAILURE);
1785 }
1786 LIST_DEL(&c->list);
1787 free(c->s);
1788 free(c);
1789 }
1790 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001791 }
1792
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +01001793 pattern_finalize_config();
1794
Willy Tarreaubb925012009-07-23 13:36:36 +02001795 err_code |= check_config_validity();
1796 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001797 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001798 exit(1);
1799 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001800
Willy Tarreau70060452015-12-14 12:46:07 +01001801 /* recompute the amount of per-process memory depending on nbproc and
1802 * the shared SSL cache size (allowed to exist in all processes).
1803 */
1804 if (global.rlimit_memmax_all) {
1805#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
1806 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
1807
1808 global.rlimit_memmax =
1809 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
1810 ssl_cache_bytes) / global.nbproc +
1811 ssl_cache_bytes + 1048575LL) / 1048576LL;
1812#else
1813 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
1814#endif
1815 }
1816
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001817#ifdef CONFIG_HAP_NS
1818 err_code |= netns_init();
1819 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001820 ha_alert("Failed to initialize namespace support.\n");
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001821 exit(1);
1822 }
1823#endif
1824
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001825 /* Apply server states */
1826 apply_server_state();
1827
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001828 for (px = proxies_list; px; px = px->next)
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001829 srv_compute_all_admin_states(px);
1830
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001831 /* Apply servers' configured address */
1832 err_code |= srv_init_addr();
1833 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001834 ha_alert("Failed to initialize server(s) addr.\n");
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001835 exit(1);
1836 }
1837
Willy Tarreaubaaee002006-06-26 02:48:02 +02001838 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001839 struct peers *pr;
1840 struct proxy *px;
1841
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001842 for (pr = cfg_peers; pr; pr = pr->next)
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001843 if (pr->peers_fe)
1844 break;
1845
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001846 for (px = proxies_list; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02001847 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001848 break;
1849
1850 if (pr || px) {
1851 /* At least one peer or one listener has been found */
1852 qfprintf(stdout, "Configuration file is valid\n");
1853 exit(0);
1854 }
1855 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
1856 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001857 }
1858
Emeric Brunc60def82017-09-27 14:59:38 +02001859 global_listener_queue_task = task_new(MAX_THREADS_MASK);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001860 if (!global_listener_queue_task) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001861 ha_alert("Out of memory when initializing global task\n");
Willy Tarreaue9b26022011-08-01 20:57:55 +02001862 exit(1);
1863 }
1864 /* very simple initialization, users will queue the task if needed */
1865 global_listener_queue_task->context = NULL; /* not even a context! */
1866 global_listener_queue_task->process = manage_global_listener_queue;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001867
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001868 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02001869 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02001870
Willy Tarreaue6945732016-12-21 19:57:00 +01001871 list_for_each_entry(pcf, &post_check_list, list) {
1872 err_code |= pcf->fct();
1873 if (err_code & (ERR_ABORT|ERR_FATAL))
1874 exit(1);
1875 }
1876
Willy Tarreaubaaee002006-06-26 02:48:02 +02001877 if (cfg_maxconn > 0)
1878 global.maxconn = cfg_maxconn;
1879
1880 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02001881 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001882 global.pidfile = strdup(cfg_pidfile);
1883 }
1884
Willy Tarreaud0256482015-01-15 21:45:22 +01001885 /* Now we want to compute the maxconn and possibly maxsslconn values.
1886 * It's a bit tricky. If memmax is not set, maxconn defaults to
1887 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
1888 *
1889 * If memmax is set, then it depends on which values are set. If
1890 * maxsslconn is set, we use memmax to determine how many cleartext
1891 * connections may be added, and set maxconn to the sum of the two.
1892 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1893 * the remaining amount of memory between memmax and the cleartext
1894 * connections. If neither are set, then it is considered that all
1895 * connections are SSL-capable, and maxconn is computed based on this,
1896 * then maxsslconn accordingly. We need to know if SSL is used on the
1897 * frontends, backends, or both, because when it's used on both sides,
1898 * we need twice the value for maxsslconn, but we only count the
1899 * handshake once since it is not performed on the two sides at the
1900 * same time (frontend-side is terminated before backend-side begins).
1901 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001902 * ssl_handshake_cost during its initialization. In any case, if
1903 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1904 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001905 */
1906 if (!global.rlimit_memmax) {
1907 if (global.maxconn == 0) {
1908 global.maxconn = DEFAULT_MAXCONN;
1909 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1910 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1911 }
1912 }
1913#ifdef USE_OPENSSL
1914 else if (!global.maxconn && !global.maxsslconn &&
1915 (global.ssl_used_frontend || global.ssl_used_backend)) {
1916 /* memmax is set, compute everything automatically. Here we want
1917 * to ensure that all SSL connections will be served. We take
1918 * care of the number of sides where SSL is used, and consider
1919 * the worst case : SSL used on both sides and doing a handshake
1920 * simultaneously. Note that we can't have more than maxconn
1921 * handshakes at a time by definition, so for the worst case of
1922 * two SSL conns per connection, we count a single handshake.
1923 */
1924 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1925 int64_t mem = global.rlimit_memmax * 1048576ULL;
1926
1927 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1928 mem -= global.maxzlibmem;
1929 mem = mem * MEM_USABLE_RATIO;
1930
1931 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001932 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001933 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1934 global.ssl_handshake_max_cost); // 1 handshake per connection max
1935
1936 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001937#ifdef SYSTEM_MAXCONN
1938 if (global.maxconn > DEFAULT_MAXCONN)
1939 global.maxconn = DEFAULT_MAXCONN;
1940#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001941 global.maxsslconn = sides * global.maxconn;
1942 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1943 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1944 global.maxconn, global.maxsslconn);
1945 }
1946 else if (!global.maxsslconn &&
1947 (global.ssl_used_frontend || global.ssl_used_backend)) {
1948 /* memmax and maxconn are known, compute maxsslconn automatically.
1949 * maxsslconn being forced, we don't know how many of it will be
1950 * on each side if both sides are being used. The worst case is
1951 * when all connections use only one SSL instance because
1952 * handshakes may be on two sides at the same time.
1953 */
1954 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1955 int64_t mem = global.rlimit_memmax * 1048576ULL;
1956 int64_t sslmem;
1957
1958 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1959 mem -= global.maxzlibmem;
1960 mem = mem * MEM_USABLE_RATIO;
1961
Willy Tarreau87b09662015-04-03 00:22:06 +02001962 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001963 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1964 global.maxsslconn = round_2dig(global.maxsslconn);
1965
1966 if (sslmem <= 0 || global.maxsslconn < sides) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001967 ha_alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1968 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1969 "without SSL is %d, but %d was found and SSL is in use.\n",
1970 global.rlimit_memmax,
1971 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
1972 global.maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001973 exit(1);
1974 }
1975
1976 if (global.maxsslconn > sides * global.maxconn)
1977 global.maxsslconn = sides * global.maxconn;
1978
1979 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1980 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1981 }
1982#endif
1983 else if (!global.maxconn) {
1984 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1985 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1986 int64_t mem = global.rlimit_memmax * 1048576ULL;
1987 int64_t clearmem;
1988
1989 if (global.ssl_used_frontend || global.ssl_used_backend)
1990 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1991
1992 mem -= global.maxzlibmem;
1993 mem = mem * MEM_USABLE_RATIO;
1994
1995 clearmem = mem;
1996 if (sides)
1997 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1998
Willy Tarreau87b09662015-04-03 00:22:06 +02001999 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01002000 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01002001#ifdef SYSTEM_MAXCONN
2002 if (global.maxconn > DEFAULT_MAXCONN)
2003 global.maxconn = DEFAULT_MAXCONN;
2004#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01002005
2006 if (clearmem <= 0 || !global.maxconn) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002007 ha_alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
2008 "high for the global.memmax value (%d MB). The absolute maximum possible value "
2009 "is %d, but %d was found.\n",
2010 global.rlimit_memmax,
2011 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
2012 global.maxsslconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01002013 exit(1);
2014 }
2015
2016 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2017 if (sides && global.maxsslconn > sides * global.maxconn) {
2018 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
2019 "to be limited to %d. Better reduce global.maxsslconn to get more "
2020 "room for extra connections.\n", global.maxsslconn, global.maxconn);
2021 }
2022 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
2023 }
2024 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002025
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002026 if (!global.maxpipes) {
2027 /* maxpipes not specified. Count how many frontends and backends
2028 * may be using splicing, and bound that to maxconn.
2029 */
2030 struct proxy *cur;
2031 int nbfe = 0, nbbe = 0;
2032
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002033 for (cur = proxies_list; cur; cur = cur->next) {
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002034 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
2035 if (cur->cap & PR_CAP_FE)
2036 nbfe += cur->maxconn;
2037 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +01002038 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002039 }
2040 }
2041 global.maxpipes = MAX(nbfe, nbbe);
2042 if (global.maxpipes > global.maxconn)
2043 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +01002044 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002045 }
2046
2047
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002048 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002049 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01002050 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Emeric Brunece0c332017-12-06 13:51:49 +01002051 /* compute fd used by async engines */
2052 if (global.ssl_used_async_engines) {
2053 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
2054 global.maxsock += global.maxconn * sides * global.ssl_used_async_engines;
2055 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002056
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002057 if (global.stats_fe)
2058 global.maxsock += global.stats_fe->maxconn;
2059
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002060 if (cfg_peers) {
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002061 /* peers also need to bypass global maxconn */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002062 struct peers *p = cfg_peers;
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002063
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002064 for (p = cfg_peers; p; p = p->next)
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002065 if (p->peers_fe)
2066 global.maxsock += p->peers_fe->maxconn;
2067 }
2068
Willy Tarreau1db37712007-06-03 17:16:49 +02002069 if (global.tune.maxpollevents <= 0)
2070 global.tune.maxpollevents = MAX_POLL_EVENTS;
2071
Olivier Houchard1599b802018-05-24 18:59:04 +02002072 if (global.tune.runqueue_depth <= 0)
2073 global.tune.runqueue_depth = RUNQUEUE_DEPTH;
2074
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01002075 if (global.tune.recv_enough == 0)
2076 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
2077
Willy Tarreau27097842015-09-28 13:53:23 +02002078 if (global.tune.maxrewrite < 0)
2079 global.tune.maxrewrite = MAXREWRITE;
2080
Willy Tarreau27a674e2009-08-17 07:23:33 +02002081 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
2082 global.tune.maxrewrite = global.tune.bufsize / 2;
2083
Willy Tarreaubaaee002006-06-26 02:48:02 +02002084 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
2085 /* command line debug mode inhibits configuration mode */
William Lallemand095ba4c2017-06-01 17:38:50 +02002086 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002087 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
2088 }
2089
William Lallemand095ba4c2017-06-01 17:38:50 +02002090 if (arg_mode & MODE_DAEMON) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002091 /* command line daemon mode inhibits foreground and debug modes mode */
2092 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
William Lallemand095ba4c2017-06-01 17:38:50 +02002093 global.mode |= arg_mode & MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002094 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002095
2096 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02002097
William Lallemand095ba4c2017-06-01 17:38:50 +02002098 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002099 ha_warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
William Lallemand095ba4c2017-06-01 17:38:50 +02002100 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002101 }
2102
William Lallemand095ba4c2017-06-01 17:38:50 +02002103 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_MWORKER))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002104 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002105 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 +02002106 global.nbproc = 1;
2107 }
2108
2109 if (global.nbproc < 1)
2110 global.nbproc = 1;
2111
Christopher Fauletbe0faa22017-08-29 15:37:10 +02002112 if (global.nbthread < 1)
2113 global.nbthread = 1;
2114
Christopher Faulet3ef26392017-08-29 16:46:57 +02002115 /* Realloc trash buffers because global.tune.bufsize may have changed */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002116 if (!init_trash_buffers(0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002117 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet3ef26392017-08-29 16:46:57 +02002118 exit(1);
2119 }
2120
Christopher Faulet96d44832017-11-14 22:02:30 +01002121 if (!init_log_buffers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002122 ha_alert("failed to initialize log buffers.\n");
Christopher Faulet96d44832017-11-14 22:02:30 +01002123 exit(1);
2124 }
2125
Willy Tarreauef1d1f82007-04-16 00:25:25 +02002126 /*
2127 * Note: we could register external pollers here.
2128 * Built-in pollers have been registered before main().
2129 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02002130
Willy Tarreau43b78992009-01-25 15:42:27 +01002131 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02002132 disable_poller("kqueue");
2133
Willy Tarreau43b78992009-01-25 15:42:27 +01002134 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002135 disable_poller("epoll");
2136
Willy Tarreau43b78992009-01-25 15:42:27 +01002137 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002138 disable_poller("poll");
2139
Willy Tarreau43b78992009-01-25 15:42:27 +01002140 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002141 disable_poller("select");
2142
2143 /* Note: we could disable any poller by name here */
2144
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002145 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02002146 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002147 fprintf(stderr, "\n");
2148 list_filters(stderr);
2149 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002150
Willy Tarreau4f60f162007-04-08 16:39:58 +02002151 if (!init_pollers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002152 ha_alert("No polling mechanism available.\n"
2153 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
2154 " is too low on this platform to support maxconn and the number of listeners\n"
2155 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
2156 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
2157 " global maxconn setting to accommodate the system's limitation. For reference,\n"
2158 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
2159 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
2160 " check build settings using 'haproxy -vv'.\n\n",
2161 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002162 exit(1);
2163 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002164 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2165 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002166 }
2167
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002168 if (!global.node)
2169 global.node = strdup(hostname);
2170
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01002171 if (!hlua_post_init())
2172 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01002173
Maxime de Roucy0f503922016-05-13 23:52:55 +02002174 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002175}
2176
Simon Horman6fb82592011-07-15 13:14:11 +09002177static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09002178{
Simon Hormanac821422011-07-15 13:14:09 +09002179 struct acl_term_suite *suite, *suiteb;
2180 struct acl_term *term, *termb;
2181
Simon Horman6fb82592011-07-15 13:14:11 +09002182 if (!cond)
2183 return;
2184
2185 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
2186 list_for_each_entry_safe(term, termb, &suite->terms, list) {
2187 LIST_DEL(&term->list);
2188 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09002189 }
Simon Horman6fb82592011-07-15 13:14:11 +09002190 LIST_DEL(&suite->list);
2191 free(suite);
2192 }
2193
2194 free(cond);
2195}
2196
2197static void deinit_tcp_rules(struct list *rules)
2198{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02002199 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09002200
2201 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09002202 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09002203 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09002204 free(trule);
2205 }
2206}
2207
Simon Horman6fb82592011-07-15 13:14:11 +09002208static void deinit_stick_rules(struct list *rules)
2209{
2210 struct sticking_rule *rule, *ruleb;
2211
2212 list_for_each_entry_safe(rule, ruleb, rules, list) {
2213 LIST_DEL(&rule->list);
2214 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02002215 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09002216 free(rule);
2217 }
2218}
2219
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002220void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002221{
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002222 struct proxy *p = proxies_list, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002223 struct cap_hdr *h,*h_next;
2224 struct server *s,*s_next;
2225 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002226 struct acl_cond *cond, *condb;
2227 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002228 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002229 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002230 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002231 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002232 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01002233 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002234 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02002235 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01002236 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002237 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002238 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01002239 struct post_deinit_fct *pdf;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002240 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002241
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002242 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002243 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02002244 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002245 free(p->id);
2246 free(p->check_req);
2247 free(p->cookie_name);
2248 free(p->cookie_domain);
Willy Tarreau4c03d1c2019-01-14 15:23:54 +01002249 free(p->lbprm.arg_str);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002250 free(p->capture_name);
2251 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09002252 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02002253 if (p->conf.logformat_string != default_http_log_format &&
2254 p->conf.logformat_string != default_tcp_log_format &&
2255 p->conf.logformat_string != clf_http_log_format)
2256 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02002257
Willy Tarreau62a61232013-04-12 18:13:46 +02002258 free(p->conf.lfs_file);
2259 free(p->conf.uniqueid_format_string);
2260 free(p->conf.uif_file);
Willy Tarreau0cac26c2019-01-14 16:55:42 +01002261 if ((p->lbprm.algo & BE_LB_LKUP) == BE_LB_LKUP_MAP)
2262 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002263
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002264 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
2265 free(p->conf.logformat_sd_string);
2266 free(p->conf.lfsd_file);
2267
Willy Tarreaua534fea2008-08-03 12:19:50 +02002268 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02002269 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002270
Willy Tarreauf4f04122010-01-28 18:10:50 +01002271 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
2272 LIST_DEL(&cwl->list);
2273 free(cwl->s);
2274 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002275 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002276
Willy Tarreauf4f04122010-01-28 18:10:50 +01002277 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
2278 LIST_DEL(&cwl->list);
2279 free(cwl->s);
2280 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002281 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002282
Willy Tarreaub80c2302007-11-30 20:51:32 +01002283 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
2284 LIST_DEL(&cond->list);
2285 prune_acl_cond(cond);
2286 free(cond);
2287 }
2288
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002289 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002290 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002291 regex_free(exp->preg);
2292 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002293 }
2294
Willy Tarreau98d04852015-05-26 12:18:29 +02002295 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002296 expb = exp;
2297 exp = exp->next;
2298 free(expb);
2299 }
2300
2301 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002302 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002303 regex_free(exp->preg);
2304 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002305 }
2306
Willy Tarreau98d04852015-05-26 12:18:29 +02002307 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002308 expb = exp;
2309 exp = exp->next;
2310 free(expb);
2311 }
2312
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002313 /* build a list of unique uri_auths */
2314 if (!ua)
2315 ua = p->uri_auth;
2316 else {
2317 /* check if p->uri_auth is unique */
2318 for (uap = ua; uap; uap=uap->next)
2319 if (uap == p->uri_auth)
2320 break;
2321
Willy Tarreauaccc4e12008-06-24 11:14:45 +02002322 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002323 /* add it, if it is */
2324 p->uri_auth->next = ua;
2325 ua = p->uri_auth;
2326 }
2327 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002328
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002329 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
2330 LIST_DEL(&acl->list);
2331 prune_acl(acl);
2332 free(acl);
2333 }
2334
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002335 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
2336 LIST_DEL(&srule->list);
2337 prune_acl_cond(srule->cond);
2338 free(srule->cond);
2339 free(srule);
2340 }
2341
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002342 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
2343 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002344 if (rule->cond) {
2345 prune_acl_cond(rule->cond);
2346 free(rule->cond);
Thierry FOURNIER / OZON.IO4ed1c952016-11-24 23:57:54 +01002347 free(rule->file);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002348 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002349 free(rule);
2350 }
2351
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002352 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
2353 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01002354 if (rdr->cond) {
2355 prune_acl_cond(rdr->cond);
2356 free(rdr->cond);
2357 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002358 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01002359 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
2360 LIST_DEL(&lf->list);
2361 free(lf);
2362 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002363 free(rdr);
2364 }
2365
William Lallemand0f99e342011-10-12 17:50:54 +02002366 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
2367 LIST_DEL(&log->list);
2368 free(log);
2369 }
2370
William Lallemand723b73a2012-02-08 16:37:49 +01002371 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
2372 LIST_DEL(&lf->list);
2373 free(lf);
2374 }
2375
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002376 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
2377 LIST_DEL(&lf->list);
2378 free(lf);
2379 }
2380
Simon Hormanac821422011-07-15 13:14:09 +09002381 deinit_tcp_rules(&p->tcp_req.inspect_rules);
2382 deinit_tcp_rules(&p->tcp_req.l4_rules);
2383
Simon Horman6fb82592011-07-15 13:14:11 +09002384 deinit_stick_rules(&p->storersp_rules);
2385 deinit_stick_rules(&p->sticking_rules);
2386
Willy Tarreaubaaee002006-06-26 02:48:02 +02002387 h = p->req_cap;
2388 while (h) {
2389 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002390 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002391 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002392 free(h);
2393 h = h_next;
2394 }/* end while(h) */
2395
2396 h = p->rsp_cap;
2397 while (h) {
2398 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002399 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002400 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002401 free(h);
2402 h = h_next;
2403 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002404
Willy Tarreaubaaee002006-06-26 02:48:02 +02002405 s = p->srv;
2406 while (s) {
2407 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002408
Willy Tarreau5b3a2022012-09-28 15:01:02 +02002409 if (s->check.task) {
2410 task_delete(s->check.task);
2411 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002412 }
Simon Hormand60d6912013-11-25 10:46:36 +09002413 if (s->agent.task) {
2414 task_delete(s->agent.task);
2415 task_free(s->agent.task);
2416 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002417
Willy Tarreau2e993902011-10-31 11:53:20 +01002418 if (s->warmup) {
2419 task_delete(s->warmup);
2420 task_free(s->warmup);
2421 }
2422
Willy Tarreaua534fea2008-08-03 12:19:50 +02002423 free(s->id);
2424 free(s->cookie);
Willy Tarreauc9fa0482018-07-10 17:43:27 +02002425 free(s->check.bi.area);
2426 free(s->check.bo.area);
2427 free(s->agent.bi.area);
2428 free(s->agent.bo.area);
James Brown55f9ff12015-10-21 18:19:05 -07002429 free(s->agent.send_string);
Christopher Faulet67957bd2017-09-27 11:00:59 +02002430 free(s->hostname_dn);
Sárközi, László34c01792014-09-05 10:08:23 +02002431 free((char*)s->conf.file);
Olivier Houchard7fc3be72018-11-22 18:50:54 +01002432 free(s->idle_conns);
2433 free(s->priv_conns);
2434 free(s->safe_conns);
Olivier Houchard0c18a6f2018-12-02 14:11:41 +01002435 free(s->idle_orphan_conns);
2436 if (s->idle_task) {
2437 int i;
2438
2439 for (i = 0; i < global.nbthread; i++)
2440 task_free(s->idle_task[i]);
2441 free(s->idle_task);
2442 }
Willy Tarreau17d45382016-12-22 21:16:08 +01002443
2444 if (s->use_ssl || s->check.use_ssl) {
2445 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
2446 xprt_get(XPRT_SSL)->destroy_srv(s);
2447 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002448 HA_SPIN_DESTROY(&s->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002449 free(s);
2450 s = s_next;
2451 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002452
Willy Tarreau4348fad2012-09-20 16:48:07 +02002453 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002454 /*
2455 * Zombie proxy, the listener just pretend to be up
2456 * because they still hold an opened fd.
2457 * Close it and give the listener its real state.
2458 */
2459 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
2460 close(l->fd);
2461 l->state = LI_INIT;
2462 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02002463 unbind_listener(l);
2464 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002465 LIST_DEL(&l->by_fe);
2466 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002467 free(l->name);
2468 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002469 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002470 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002471
Willy Tarreau4348fad2012-09-20 16:48:07 +02002472 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002473 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01002474 if (bind_conf->xprt->destroy_bind_conf)
2475 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002476 free(bind_conf->file);
2477 free(bind_conf->arg);
2478 LIST_DEL(&bind_conf->by_fe);
2479 free(bind_conf);
2480 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02002481
Christopher Fauletd7c91962015-04-30 11:48:27 +02002482 flt_deinit(p);
2483
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002484 free(p->desc);
2485 free(p->fwdfor_hdr_name);
2486
Willy Tarreauff011f22011-01-06 17:51:27 +01002487 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06002488 free_http_res_rules(&p->http_res_rules);
Willy Tarreau1f89b182017-11-22 16:53:53 +01002489 task_free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01002490
Willy Tarreaubafbe012017-11-24 17:34:44 +01002491 pool_destroy(p->req_cap_pool);
2492 pool_destroy(p->rsp_cap_pool);
2493 pool_destroy(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002494
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002495 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002496 p = p->next;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002497 HA_SPIN_DESTROY(&p0->lbprm.lock);
2498 HA_SPIN_DESTROY(&p0->lock);
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002499 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002500 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02002501
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002502 while (ua) {
2503 uap = ua;
2504 ua = ua->next;
2505
Willy Tarreaua534fea2008-08-03 12:19:50 +02002506 free(uap->uri_prefix);
2507 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002508 free(uap->node);
2509 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002510
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002511 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01002512 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002513
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002514 free(uap);
2515 }
2516
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002517 userlist_free(userlist);
2518
David Carlier834cb2e2015-09-25 12:02:25 +01002519 cfg_unregister_sections();
2520
Christopher Faulet0132d062017-07-26 15:33:35 +02002521 deinit_log_buffers();
David Carlier834cb2e2015-09-25 12:02:25 +01002522
Willy Tarreaudd815982007-10-16 12:25:14 +02002523 protocol_unbind_all();
2524
Willy Tarreau05554e62016-12-21 20:46:26 +01002525 list_for_each_entry(pdf, &post_deinit_list, list)
2526 pdf->fct();
2527
Joe Williamsdf5b38f2010-12-29 17:05:48 +01002528 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02002529 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002530 free(global.chroot); global.chroot = NULL;
2531 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002532 free(global.node); global.node = NULL;
2533 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002534 free(oldpids); oldpids = NULL;
Willy Tarreau1f89b182017-11-22 16:53:53 +01002535 task_free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002536
William Lallemand0f99e342011-10-12 17:50:54 +02002537 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
2538 LIST_DEL(&log->list);
2539 free(log);
2540 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01002541 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02002542 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01002543 LIST_DEL(&wl->list);
2544 free(wl);
2545 }
2546
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002547 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
2548 if (bol->must_free)
2549 free((void *)bol->str);
2550 LIST_DEL(&bol->list);
2551 free(bol);
2552 }
2553
Christopher Fauletff2613e2016-11-09 11:36:17 +01002554 vars_prune(&global.vars, NULL, NULL);
Willy Tarreau2455ceb2018-11-26 15:57:34 +01002555 pool_destroy_all();
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002556 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002557} /* end deinit() */
2558
William Lallemand72160322018-11-06 17:37:16 +01002559
2560
2561/* This is a wrapper for the sockpair FD, It tests if the socket received an
2562 * EOF, if not, it calls listener_accept */
2563void mworker_accept_wrapper(int fd)
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002564{
2565 char c;
William Lallemand72160322018-11-06 17:37:16 +01002566 int ret;
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002567
William Lallemand72160322018-11-06 17:37:16 +01002568 while (1) {
2569 ret = recv(fd, &c, 1, MSG_PEEK);
2570 if (ret == -1) {
2571 if (errno == EINTR)
2572 continue;
2573 if (errno == EAGAIN) {
2574 fd_cant_recv(fd);
2575 return;
2576 }
2577 break;
2578 } else if (ret > 0) {
2579 listener_accept(fd);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002580 return;
William Lallemand72160322018-11-06 17:37:16 +01002581 } else if (ret == 0) {
2582 /* At this step the master is down before
2583 * this worker perform a 'normal' exit.
2584 * So we want to exit with an error but
2585 * other threads could currently process
2586 * some stuff so we can't perform a clean
2587 * deinit().
2588 */
2589 exit(EXIT_FAILURE);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002590 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002591 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002592 return;
2593}
2594
William Lallemand72160322018-11-06 17:37:16 +01002595/*
William Lallemand72160322018-11-06 17:37:16 +01002596 * This function register the accept wrapper for the sockpair of the master worker
2597 */
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002598void mworker_pipe_register()
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002599{
William Lallemand72160322018-11-06 17:37:16 +01002600 /* The iocb should be already initialized with listener_accept */
William Lallemanda90cacf2018-11-07 08:38:32 +01002601 if (fdtab[proc_self->ipc_fd[1]].iocb == mworker_accept_wrapper)
2602 return;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002603
William Lallemandbc193052018-09-11 10:06:26 +02002604 fcntl(proc_self->ipc_fd[1], F_SETFL, O_NONBLOCK);
Emeric Brunc8c0ed92018-10-11 15:27:07 +02002605 /* In multi-tread, we need only one thread to process
2606 * events on the pipe with master
2607 */
William Lallemande260e0d2018-11-08 12:00:14 +01002608 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 +02002609 fd_want_recv(proc_self->ipc_fd[1]);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002610}
Christopher Fauletdc628a32017-10-19 11:59:44 +02002611
Willy Tarreau918ff602011-07-25 16:33:49 +02002612/* Runs the polling loop */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01002613static void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02002614{
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002615 int next, exp;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002616
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002617 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002618 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002619 /* Process a few tasks */
2620 process_runnable_tasks();
2621
William Lallemand1aab50b2018-06-07 09:46:01 +02002622 /* check if we caught some signals and process them in the
2623 first thread */
2624 if (tid == 0)
2625 signal_process_queue();
Willy Tarreau29857942009-05-10 09:01:21 +02002626
Willy Tarreau58b458d2008-06-29 22:40:23 +02002627 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002628 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002629
Willy Tarreau85c459d2018-08-02 10:54:31 +02002630 /* stop when there's nothing left to do */
William Lallemanda7199262018-11-16 16:57:20 +01002631 if ((jobs - unstoppable_jobs) == 0)
Willy Tarreau85c459d2018-08-02 10:54:31 +02002632 break;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002633
Willy Tarreau10146c92015-04-13 20:44:19 +02002634 /* expire immediately if events are pending */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002635 exp = now_ms;
Christopher Faulet32467fe2018-01-15 12:16:34 +01002636 if (fd_cache_mask & tid_bit)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002637 activity[tid].wake_cache++;
2638 else if (active_tasks_mask & tid_bit)
2639 activity[tid].wake_tasks++;
William Lallemand1aab50b2018-06-07 09:46:01 +02002640 else if (signal_queue_len && tid == 0)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002641 activity[tid].wake_signal++;
Olivier Houchard79321b92018-07-26 17:55:11 +02002642 else {
2643 HA_ATOMIC_OR(&sleeping_thread_mask, tid_bit);
2644 __ha_barrier_store();
2645 if (active_tasks_mask & tid_bit) {
2646 activity[tid].wake_tasks++;
2647 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
2648 } else
2649 exp = next;
2650 }
Willy Tarreau10146c92015-04-13 20:44:19 +02002651
Willy Tarreau58b458d2008-06-29 22:40:23 +02002652 /* The poller will ensure it returns around <next> */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002653 cur_poller.poll(&cur_poller, exp);
Olivier Houchard79321b92018-07-26 17:55:11 +02002654 if (sleeping_thread_mask & tid_bit)
2655 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01002656 fd_process_cached_events();
Emeric Brun64cc49c2017-10-03 14:46:45 +02002657
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002658 activity[tid].loops++;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002659 }
2660}
2661
Christopher Faulet1d17c102017-08-29 15:38:48 +02002662static void *run_thread_poll_loop(void *data)
2663{
2664 struct per_thread_init_fct *ptif;
2665 struct per_thread_deinit_fct *ptdf;
Christopher Fauletda18b9d2018-01-25 16:10:16 +01002666 __decl_hathreads(static HA_SPINLOCK_T start_lock);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002667
Willy Tarreau0c026f42018-08-01 19:12:20 +02002668 ha_set_tid(*((unsigned int *)data));
Christopher Faulet1d17c102017-08-29 15:38:48 +02002669 tv_update_date(-1,-1);
2670
2671 list_for_each_entry(ptif, &per_thread_init_list, list) {
2672 if (!ptif->fct()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002673 ha_alert("failed to initialize thread %u.\n", tid);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002674 exit(1);
2675 }
2676 }
2677
William Lallemandbc193052018-09-11 10:06:26 +02002678 if ((global.mode & MODE_MWORKER) && master == 0) {
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002679 HA_SPIN_LOCK(START_LOCK, &start_lock);
2680 mworker_pipe_register();
2681 HA_SPIN_UNLOCK(START_LOCK, &start_lock);
2682 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002683
2684 protocol_enable_all();
Christopher Faulet1d17c102017-08-29 15:38:48 +02002685 run_poll_loop();
2686
2687 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
2688 ptdf->fct();
2689
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002690#ifdef USE_THREAD
William Lallemand091d8272018-06-24 09:37:03 +02002691 HA_ATOMIC_AND(&all_threads_mask, ~tid_bit);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002692 if (tid > 0)
2693 pthread_exit(NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002694#endif
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002695 return NULL;
2696}
Christopher Faulet1d17c102017-08-29 15:38:48 +02002697
Willy Tarreaue9b26022011-08-01 20:57:55 +02002698/* This is the global management task for listeners. It enables listeners waiting
2699 * for global resources when there are enough free resource, or at least once in
2700 * a while. It is designed to be called as a task.
2701 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02002702static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state)
Willy Tarreaue9b26022011-08-01 20:57:55 +02002703{
2704 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02002705 /* queue is empty, nothing to do */
2706 if (LIST_ISEMPTY(&global_listener_queue))
2707 goto out;
2708
2709 /* If there are still too many concurrent connections, let's wait for
2710 * some of them to go away. We don't need to re-arm the timer because
2711 * each of them will scan the queue anyway.
2712 */
2713 if (unlikely(actconn >= global.maxconn))
2714 goto out;
2715
2716 /* We should periodically try to enable listeners waiting for a global
2717 * resource here, because it is possible, though very unlikely, that
2718 * they have been blocked by a temporary lack of global resource such
2719 * as a file descriptor or memory and that the temporary condition has
2720 * disappeared.
2721 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002722 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02002723
2724 out:
2725 t->expire = next;
2726 task_queue(t);
2727 return t;
2728}
Willy Tarreau4f60f162007-04-08 16:39:58 +02002729
Willy Tarreaubaaee002006-06-26 02:48:02 +02002730int main(int argc, char **argv)
2731{
2732 int err, retry;
2733 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02002734 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02002735 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002736
Olivier Houchard5fa300d2018-02-03 15:15:21 +01002737 setvbuf(stdout, NULL, _IONBF, 0);
Willy Tarreau5794fb02018-11-25 18:43:29 +01002738
2739 /* process all initcalls in order of potential dependency */
2740 RUN_INITCALLS(STG_PREPARE);
2741 RUN_INITCALLS(STG_LOCK);
2742 RUN_INITCALLS(STG_ALLOC);
2743 RUN_INITCALLS(STG_POOL);
2744 RUN_INITCALLS(STG_REGISTER);
2745 RUN_INITCALLS(STG_INIT);
2746
Emeric Bruncf20bf12010-10-22 16:06:11 +02002747 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002748 signal_register_fct(SIGQUIT, dump, SIGQUIT);
2749 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
2750 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
William Lallemand73b85e72017-06-01 17:38:51 +02002751 signal_register_fct(SIGUSR2, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002752
Willy Tarreaue437c442010-03-17 18:02:46 +01002753 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
2754 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
2755 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002756 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002757 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002758
Willy Tarreaudc23a922011-02-16 11:10:36 +01002759 /* ulimits */
2760 if (!global.rlimit_nofile)
2761 global.rlimit_nofile = global.maxsock;
2762
2763 if (global.rlimit_nofile) {
2764 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
2765 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02002766 /* try to set it to the max possible at least */
2767 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02002768 limit.rlim_cur = limit.rlim_max;
2769 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
2770 getrlimit(RLIMIT_NOFILE, &limit);
2771
Christopher Faulet767a84b2017-11-24 16:50:31 +01002772 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 +02002773 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002774 }
2775 }
2776
2777 if (global.rlimit_memmax) {
2778 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01002779 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002780#ifdef RLIMIT_AS
2781 if (setrlimit(RLIMIT_AS, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002782 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2783 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002784 }
2785#else
2786 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002787 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2788 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002789 }
2790#endif
2791 }
2792
Olivier Houchardf73629d2017-04-05 22:33:04 +02002793 if (old_unixsocket) {
William Lallemand85b0bd92017-06-01 17:38:53 +02002794 if (strcmp("/dev/null", old_unixsocket) != 0) {
2795 if (get_old_sockets(old_unixsocket) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002796 ha_alert("Failed to get the sockets from the old process!\n");
William Lallemand85b0bd92017-06-01 17:38:53 +02002797 if (!(global.mode & MODE_MWORKER))
2798 exit(1);
2799 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002800 }
2801 }
William Lallemand85b0bd92017-06-01 17:38:53 +02002802 get_cur_unixsocket();
2803
Willy Tarreaubaaee002006-06-26 02:48:02 +02002804 /* We will loop at most 100 times with 10 ms delay each time.
2805 * That's at most 1 second. We only send a signal to old pids
2806 * if we cannot grab at least one port.
2807 */
2808 retry = MAX_START_RETRIES;
2809 err = ERR_NONE;
2810 while (retry >= 0) {
2811 struct timeval w;
2812 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01002813 /* exit the loop on no error or fatal error */
2814 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002815 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02002816 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002817 break;
2818
2819 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
2820 * listening sockets. So on those platforms, it would be wiser to
2821 * simply send SIGUSR1, which will not be undoable.
2822 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02002823 if (tell_old_pids(SIGTTOU) == 0) {
2824 /* no need to wait if we can't contact old pids */
2825 retry = 0;
2826 continue;
2827 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002828 /* give some time to old processes to stop listening */
2829 w.tv_sec = 0;
2830 w.tv_usec = 10*1000;
2831 select(0, NULL, NULL, NULL, &w);
2832 retry--;
2833 }
2834
2835 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01002836 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02002837 if (retry != MAX_START_RETRIES && nb_oldpids) {
2838 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002839 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02002840 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002841 exit(1);
2842 }
2843
William Lallemand944e6192018-11-21 15:48:31 +01002844 if (!(global.mode & MODE_MWORKER_WAIT) && listeners == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002845 ha_alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002846 /* Note: we don't have to send anything to the old pids because we
2847 * never stopped them. */
2848 exit(1);
2849 }
2850
Emeric Bruncf20bf12010-10-22 16:06:11 +02002851 err = protocol_bind_all(errmsg, sizeof(errmsg));
2852 if ((err & ~ERR_WARN) != ERR_NONE) {
2853 if ((err & ERR_ALERT) || (err & ERR_WARN))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002854 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002855
Christopher Faulet767a84b2017-11-24 16:50:31 +01002856 ha_alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002857 protocol_unbind_all(); /* cleanup everything we can */
2858 if (nb_oldpids)
2859 tell_old_pids(SIGTTIN);
2860 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002861 } else if (err & ERR_WARN) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002862 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02002863 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002864 /* Ok, all listener should now be bound, close any leftover sockets
2865 * the previous process gave us, we don't need them anymore
2866 */
2867 while (xfer_sock_list != NULL) {
2868 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
2869 close(xfer_sock_list->fd);
2870 free(xfer_sock_list->iface);
2871 free(xfer_sock_list->namespace);
2872 free(xfer_sock_list);
2873 xfer_sock_list = tmpxfer;
2874 }
Willy Tarreaudd815982007-10-16 12:25:14 +02002875
Willy Tarreaubaaee002006-06-26 02:48:02 +02002876 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002877 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
2878 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002879
Willy Tarreaubaaee002006-06-26 02:48:02 +02002880 /* MODE_QUIET can inhibit alerts and warnings below this line */
2881
PiBa-NL149a81a2017-12-25 21:03:31 +01002882 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL) {
2883 /* either stdin/out/err are already closed or should stay as they are. */
2884 if ((global.mode & MODE_DAEMON)) {
2885 /* daemon mode re-executing, stdin/stdout/stderr are already closed so keep quiet */
2886 global.mode &= ~MODE_VERBOSE;
2887 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2888 }
2889 } else {
2890 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
2891 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01002892 stdio_quiet(-1);
PiBa-NL149a81a2017-12-25 21:03:31 +01002893 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002894 }
2895
2896 /* open log & pid files before the chroot */
William Lallemand80293002017-11-06 11:00:03 +01002897 if ((global.mode & MODE_DAEMON || global.mode & MODE_MWORKER) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002898 unlink(global.pidfile);
2899 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
2900 if (pidfd < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002901 ha_alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002902 if (nb_oldpids)
2903 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02002904 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002905 exit(1);
2906 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002907 }
2908
Willy Tarreaub38651a2007-03-24 17:24:39 +01002909 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002910 ha_alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
2911 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002912 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01002913 exit(1);
2914 }
2915
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002916 /* If the user is not root, we'll still let him try the configuration
2917 * but we inform him that unexpected behaviour may occur.
2918 */
2919 if ((global.last_checks & LSTCHK_NETADM) && getuid())
Christopher Faulet767a84b2017-11-24 16:50:31 +01002920 ha_warning("[%s.main()] Some options which require full privileges"
2921 " might not work well.\n"
2922 "", argv[0]);
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002923
William Lallemand095ba4c2017-06-01 17:38:50 +02002924 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2925
2926 /* chroot if needed */
2927 if (global.chroot != NULL) {
2928 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002929 ha_alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02002930 if (nb_oldpids)
2931 tell_old_pids(SIGTTIN);
2932 protocol_unbind_all();
2933 exit(1);
2934 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002935 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002936 }
2937
William Lallemand944e6192018-11-21 15:48:31 +01002938 if (nb_oldpids && !(global.mode & MODE_MWORKER_WAIT))
Willy Tarreaubb545b42010-08-25 12:58:59 +02002939 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002940
William Lallemand8a361b52017-06-20 11:20:33 +02002941 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
2942 nb_oldpids = 0;
2943 free(oldpids);
2944 oldpids = NULL;
2945 }
2946
2947
Willy Tarreaubaaee002006-06-26 02:48:02 +02002948 /* Note that any error at this stage will be fatal because we will not
2949 * be able to restart the old pids.
2950 */
2951
William Lallemand095ba4c2017-06-01 17:38:50 +02002952 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2953 /* setgid / setuid */
2954 if (global.gid) {
2955 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01002956 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2957 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002958
2959 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002960 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02002961 protocol_unbind_all();
2962 exit(1);
2963 }
2964 }
Michael Schererab012dd2013-01-12 18:35:19 +01002965
William Lallemand095ba4c2017-06-01 17:38:50 +02002966 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002967 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Michael Schererab012dd2013-01-12 18:35:19 +01002968 protocol_unbind_all();
2969 exit(1);
2970 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002971 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002972 /* check ulimits */
2973 limit.rlim_cur = limit.rlim_max = 0;
2974 getrlimit(RLIMIT_NOFILE, &limit);
2975 if (limit.rlim_cur < global.maxsock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002976 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",
2977 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002978 }
2979
William Lallemand944e6192018-11-21 15:48:31 +01002980 if (global.mode & (MODE_DAEMON | MODE_MWORKER | MODE_MWORKER_WAIT)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002981 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002982 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002983 int ret = 0;
2984 int proc;
William Lallemande1340412017-12-28 16:09:36 +01002985 int devnullfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002986
William Lallemand095ba4c2017-06-01 17:38:50 +02002987 /*
2988 * if daemon + mworker: must fork here to let a master
2989 * process live in background before forking children
2990 */
William Lallemand73b85e72017-06-01 17:38:51 +02002991
2992 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)
2993 && (global.mode & MODE_MWORKER)
2994 && (global.mode & MODE_DAEMON)) {
William Lallemand095ba4c2017-06-01 17:38:50 +02002995 ret = fork();
2996 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002997 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002998 protocol_unbind_all();
2999 exit(1); /* there has been an error */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003000 } else if (ret > 0) { /* parent leave to daemonize */
William Lallemand095ba4c2017-06-01 17:38:50 +02003001 exit(0);
William Lallemandbfd8eb52018-07-04 15:31:23 +02003002 } else /* change the process group ID in the child (master process) */
3003 setsid();
William Lallemand095ba4c2017-06-01 17:38:50 +02003004 }
William Lallemande20b6a62017-06-01 17:38:55 +02003005
William Lallemande20b6a62017-06-01 17:38:55 +02003006
William Lallemanddeed7802017-11-06 11:00:04 +01003007 /* if in master-worker mode, write the PID of the father */
3008 if (global.mode & MODE_MWORKER) {
3009 char pidstr[100];
3010 snprintf(pidstr, sizeof(pidstr), "%d\n", getpid());
Willy Tarreau46ec48b2018-01-23 19:20:19 +01003011 if (pidfd >= 0)
3012 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
William Lallemanddeed7802017-11-06 11:00:04 +01003013 }
3014
Willy Tarreaubaaee002006-06-26 02:48:02 +02003015 /* the father launches the required number of processes */
William Lallemand944e6192018-11-21 15:48:31 +01003016 if (!(global.mode & MODE_MWORKER_WAIT)) {
3017 children = calloc(global.nbproc, sizeof(int));
3018 for (proc = 0; proc < global.nbproc; proc++) {
3019 ret = fork();
3020 if (ret < 0) {
3021 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
3022 protocol_unbind_all();
3023 exit(1); /* there has been an error */
3024 }
3025 else if (ret == 0) /* child breaks here */
3026 break;
3027 children[proc] = ret;
3028 if (pidfd >= 0 && !(global.mode & MODE_MWORKER)) {
3029 char pidstr[100];
3030 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
3031 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
3032 }
3033 if (global.mode & MODE_MWORKER) {
3034 struct mworker_proc *child;
William Lallemandce83b4a2018-10-26 14:47:30 +02003035
William Lallemand220567e2018-11-21 18:04:53 +01003036 ha_notice("New worker #%d (%d) forked\n", relative_pid, ret);
William Lallemand944e6192018-11-21 15:48:31 +01003037 /* find the right mworker_proc */
3038 list_for_each_entry(child, &proc_list, list) {
3039 if (child->relative_pid == relative_pid &&
3040 child->reloads == 0) {
3041 child->timestamp = now.tv_sec;
3042 child->pid = ret;
3043 break;
3044 }
William Lallemandce83b4a2018-10-26 14:47:30 +02003045 }
3046 }
William Lallemandbc193052018-09-11 10:06:26 +02003047
William Lallemand944e6192018-11-21 15:48:31 +01003048 relative_pid++; /* each child will get a different one */
3049 pid_bit <<= 1;
3050 }
3051 } else {
3052 /* wait mode */
3053 global.nbproc = 1;
3054 proc = 1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003055 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003056
3057#ifdef USE_CPU_AFFINITY
3058 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02003059 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003060 global.cpu_map.proc[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003061#ifdef __FreeBSD__
Olivier Houchard97148f62017-08-16 17:29:11 +02003062 {
3063 cpuset_t cpuset;
3064 int i;
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003065 unsigned long cpu_map = global.cpu_map.proc[proc];
Olivier Houchard97148f62017-08-16 17:29:11 +02003066
3067 CPU_ZERO(&cpuset);
3068 while ((i = ffsl(cpu_map)) > 0) {
3069 CPU_SET(i - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003070 cpu_map &= ~(1UL << (i - 1));
Olivier Houchard97148f62017-08-16 17:29:11 +02003071 }
3072 ret = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset), &cpuset);
3073 }
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003074#else
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003075 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map.proc[proc]);
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003076#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003077#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02003078 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02003079 if (pidfd >= 0) {
3080 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
3081 close(pidfd);
3082 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02003083
3084 /* We won't ever use this anymore */
Willy Tarreaud137dd32010-08-25 12:49:05 +02003085 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003086
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003087 if (proc == global.nbproc) {
William Lallemand944e6192018-11-21 15:48:31 +01003088 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003089
3090 if ((!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
3091 (global.mode & MODE_DAEMON)) {
3092 /* detach from the tty, this is required to properly daemonize. */
William Lallemande1340412017-12-28 16:09:36 +01003093 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL))
3094 stdio_quiet(-1);
3095
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003096 global.mode &= ~MODE_VERBOSE;
3097 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003098 }
3099
William Lallemandb3f2be32018-09-11 10:06:18 +02003100 mworker_loop();
William Lallemand1499b9b2017-06-07 15:04:47 +02003101 /* should never get there */
3102 exit(EXIT_FAILURE);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003103 }
William Lallemandcf4e4962017-06-08 19:05:48 +02003104#if defined(USE_OPENSSL) && !defined(OPENSSL_NO_DH)
Grant Zhang872f9c22017-01-21 01:10:18 +00003105 ssl_free_dh();
3106#endif
William Lallemand1499b9b2017-06-07 15:04:47 +02003107 exit(0); /* parent must leave */
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003108 }
3109
William Lallemandcb11fd22017-06-01 17:38:52 +02003110 /* child must never use the atexit function */
3111 atexit_flag = 0;
3112
William Lallemandbc193052018-09-11 10:06:26 +02003113 /* close useless master sockets */
3114 if (global.mode & MODE_MWORKER) {
3115 struct mworker_proc *child, *it;
3116 master = 0;
3117
William Lallemand309dc9a2018-10-26 14:47:45 +02003118 mworker_cli_proxy_stop();
3119
William Lallemandbc193052018-09-11 10:06:26 +02003120 /* free proc struct of other processes */
3121 list_for_each_entry_safe(child, it, &proc_list, list) {
William Lallemandce83b4a2018-10-26 14:47:30 +02003122 /* close the FD of the master side for all
3123 * workers, we don't need to close the worker
3124 * side of other workers since it's done with
3125 * the bind_proc */
Tim Duesterhus742e0f92018-11-25 20:03:39 +01003126 if (child->ipc_fd[0] >= 0)
3127 close(child->ipc_fd[0]);
William Lallemandce83b4a2018-10-26 14:47:30 +02003128 if (child->relative_pid == relative_pid &&
3129 child->reloads == 0) {
3130 /* keep this struct if this is our pid */
3131 proc_self = child;
William Lallemandbc193052018-09-11 10:06:26 +02003132 continue;
William Lallemandce83b4a2018-10-26 14:47:30 +02003133 }
William Lallemandbc193052018-09-11 10:06:26 +02003134 LIST_DEL(&child->list);
3135 free(child);
3136 }
3137 }
Willy Tarreau1605c7a2018-01-23 19:01:49 +01003138
William Lallemande1340412017-12-28 16:09:36 +01003139 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
3140 devnullfd = open("/dev/null", O_RDWR, 0);
3141 if (devnullfd < 0) {
3142 ha_alert("Cannot open /dev/null\n");
3143 exit(EXIT_FAILURE);
3144 }
3145 }
3146
William Lallemand095ba4c2017-06-01 17:38:50 +02003147 /* Must chroot and setgid/setuid in the children */
3148 /* chroot if needed */
3149 if (global.chroot != NULL) {
3150 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003151 ha_alert("[%s.main()] Cannot chroot1(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02003152 if (nb_oldpids)
3153 tell_old_pids(SIGTTIN);
3154 protocol_unbind_all();
3155 exit(1);
3156 }
3157 }
3158
3159 free(global.chroot);
3160 global.chroot = NULL;
3161
3162 /* setgid / setuid */
3163 if (global.gid) {
3164 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01003165 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
3166 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02003167
3168 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003169 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003170 protocol_unbind_all();
3171 exit(1);
3172 }
3173 }
3174
3175 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003176 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003177 protocol_unbind_all();
3178 exit(1);
3179 }
3180
William Lallemand7f80eb22017-05-26 18:19:55 +02003181 /* pass through every cli socket, and check if it's bound to
3182 * the current process and if it exposes listeners sockets.
3183 * Caution: the GTUNE_SOCKET_TRANSFER is now set after the fork.
3184 * */
3185
3186 if (global.stats_fe) {
3187 struct bind_conf *bind_conf;
3188
3189 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
3190 if (bind_conf->level & ACCESS_FD_LISTENERS) {
3191 if (!bind_conf->bind_proc || bind_conf->bind_proc & (1UL << proc)) {
3192 global.tune.options |= GTUNE_SOCKET_TRANSFER;
3193 break;
3194 }
3195 }
3196 }
3197 }
3198
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003199 /* we might have to unbind some proxies from some processes */
Olivier Houchardfbc74e82017-11-24 16:54:05 +01003200 px = proxies_list;
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003201 while (px != NULL) {
3202 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02003203 if (!(px->bind_proc & (1UL << proc))) {
3204 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
3205 zombify_proxy(px);
3206 else
3207 stop_proxy(px);
3208 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003209 }
3210 px = px->next;
3211 }
3212
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003213 /* we might have to unbind some peers sections from some processes */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02003214 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003215 if (!curpeers->peers_fe)
3216 continue;
3217
3218 if (curpeers->peers_fe->bind_proc & (1UL << proc))
3219 continue;
3220
3221 stop_proxy(curpeers->peers_fe);
3222 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02003223 signal_unregister_handler(curpeers->sighandler);
3224 task_delete(curpeers->sync_task);
3225 task_free(curpeers->sync_task);
3226 curpeers->sync_task = NULL;
3227 task_free(curpeers->peers_fe->task);
3228 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003229 curpeers->peers_fe = NULL;
3230 }
3231
William Lallemand2e8fad92018-11-13 16:18:23 +01003232 /*
3233 * This is only done in daemon mode because we might want the
3234 * logs on stdout in mworker mode. If we're NOT in QUIET mode,
3235 * we should now close the 3 first FDs to ensure that we can
3236 * detach from the TTY. We MUST NOT do it in other cases since
3237 * it would have already be done, and 0-2 would have been
3238 * affected to listening sockets
Willy Tarreaubaaee002006-06-26 02:48:02 +02003239 */
William Lallemand2e8fad92018-11-13 16:18:23 +01003240 if ((global.mode & MODE_DAEMON) &&
3241 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02003242 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01003243 stdio_quiet(devnullfd);
Willy Tarreau106cb762008-11-16 07:40:34 +01003244 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003245 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
3246 }
3247 pid = getpid(); /* update child's pid */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003248 if (!(global.mode & MODE_MWORKER)) /* in mworker mode we don't want a new pgid for the children */
3249 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02003250 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02003251 }
3252
Christopher Faulete3a5e352017-10-24 13:53:54 +02003253 global.mode &= ~MODE_STARTING;
Willy Tarreau4f60f162007-04-08 16:39:58 +02003254 /*
3255 * That's it : the central polling loop. Run until we stop.
3256 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02003257#ifdef USE_THREAD
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003258 {
Christopher Faulet1d17c102017-08-29 15:38:48 +02003259 unsigned int *tids = calloc(global.nbthread, sizeof(unsigned int));
3260 pthread_t *threads = calloc(global.nbthread, sizeof(pthread_t));
3261 int i;
William Lallemand1aab50b2018-06-07 09:46:01 +02003262 sigset_t blocked_sig, old_sig;
Christopher Faulet1d17c102017-08-29 15:38:48 +02003263
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003264 /* Init tids array */
3265 for (i = 0; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003266 tids[i] = i;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003267
William Lallemand1aab50b2018-06-07 09:46:01 +02003268 /* ensure the signals will be blocked in every thread */
3269 sigfillset(&blocked_sig);
3270 sigdelset(&blocked_sig, SIGPROF);
3271 sigdelset(&blocked_sig, SIGBUS);
3272 sigdelset(&blocked_sig, SIGFPE);
3273 sigdelset(&blocked_sig, SIGILL);
3274 sigdelset(&blocked_sig, SIGSEGV);
3275 pthread_sigmask(SIG_SETMASK, &blocked_sig, &old_sig);
3276
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003277 /* Create nbthread-1 thread. The first thread is the current process */
3278 threads[0] = pthread_self();
3279 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003280 pthread_create(&threads[i], NULL, &run_thread_poll_loop, &tids[i]);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003281
Christopher Faulet62519022017-10-16 15:49:32 +02003282#ifdef USE_CPU_AFFINITY
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003283 /* Now the CPU affinity for all threads */
3284 for (i = 0; i < global.nbthread; i++) {
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003285 if (global.cpu_map.proc[relative_pid-1])
3286 global.cpu_map.thread[relative_pid-1][i] &= global.cpu_map.proc[relative_pid-1];
Christopher Faulet62519022017-10-16 15:49:32 +02003287
Willy Tarreau421f02e2018-01-20 18:19:22 +01003288 if (i < MAX_THREADS && /* only the first 32/64 threads may be pinned */
Olivier Houchard829aa242017-12-01 18:19:43 +01003289 global.cpu_map.thread[relative_pid-1][i]) {/* only do this if the thread has a THREAD map */
3290#if defined(__FreeBSD__) || defined(__NetBSD__)
3291 cpuset_t cpuset;
3292#else
3293 cpu_set_t cpuset;
3294#endif
3295 int j;
3296 unsigned long cpu_map = global.cpu_map.thread[relative_pid-1][i];
3297
3298 CPU_ZERO(&cpuset);
3299
3300 while ((j = ffsl(cpu_map)) > 0) {
3301 CPU_SET(j - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003302 cpu_map &= ~(1UL << (j - 1));
Olivier Houchard829aa242017-12-01 18:19:43 +01003303 }
Christopher Faulet62519022017-10-16 15:49:32 +02003304 pthread_setaffinity_np(threads[i],
Olivier Houchard829aa242017-12-01 18:19:43 +01003305 sizeof(cpuset), &cpuset);
3306 }
Christopher Faulet1d17c102017-08-29 15:38:48 +02003307 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003308#endif /* !USE_CPU_AFFINITY */
3309
William Lallemand1aab50b2018-06-07 09:46:01 +02003310 /* when multithreading we need to let only the thread 0 handle the signals */
William Lallemandd3801c12018-09-11 10:06:23 +02003311 haproxy_unblock_signals();
William Lallemand1aab50b2018-06-07 09:46:01 +02003312
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003313 /* Finally, start the poll loop for the first thread */
3314 run_thread_poll_loop(&tids[0]);
3315
3316 /* Wait the end of other threads */
3317 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003318 pthread_join(threads[i], NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003319
Christopher Faulet1d17c102017-08-29 15:38:48 +02003320 free(tids);
3321 free(threads);
3322
Christopher Fauletb79a94c2017-05-30 15:34:30 +02003323#if defined(DEBUG_THREAD) || defined(DEBUG_FULL)
3324 show_lock_stats();
3325#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003326 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003327#else /* ! USE_THREAD */
William Lallemandd3801c12018-09-11 10:06:23 +02003328 haproxy_unblock_signals();
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003329 run_thread_poll_loop((int []){0});
Christopher Faulet62519022017-10-16 15:49:32 +02003330
Christopher Faulet62519022017-10-16 15:49:32 +02003331#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003332
3333 /* Do some cleanup */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003334 deinit();
Christopher Faulet1d17c102017-08-29 15:38:48 +02003335
Willy Tarreaubaaee002006-06-26 02:48:02 +02003336 exit(0);
3337}
3338
3339
3340/*
3341 * Local variables:
3342 * c-indent-level: 8
3343 * c-basic-offset: 8
3344 * End:
3345 */