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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau65e94d12018-08-02 18:12:50 +02003 * Copyright 2000-2018 Willy Tarreau <willy@haproxy.org>.
Willy Tarreaubaaee002006-06-26 02:48:02 +02004 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 *
Lukas Tribus23953682017-04-28 13:24:30 +000010 * Please refer to RFC7230 - RFC7235 informations about HTTP protocol, and
11 * RFC6265 for informations about cookies usage. More generally, the IETF HTTP
Willy Tarreaubaaee002006-06-26 02:48:02 +020012 * Working Group's web site should be consulted for protocol related changes :
13 *
14 * http://ftp.ics.uci.edu/pub/ietf/http/
15 *
16 * Pending bugs (may be not fixed because never reproduced) :
17 * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes
18 * the proxy to terminate (no core) if the client breaks the connection during
19 * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to
20 * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be
21 * related to missing setsid() (fixed in 1.1.15)
22 * - a proxy with an invalid config will prevent the startup even if disabled.
23 *
24 * ChangeLog has moved to the CHANGELOG file.
25 *
Willy Tarreaubaaee002006-06-26 02:48:02 +020026 */
27
David Carlier7ece0962015-12-08 21:43:09 +000028#define _GNU_SOURCE
Willy Tarreaubaaee002006-06-26 02:48:02 +020029#include <stdio.h>
30#include <stdlib.h>
31#include <unistd.h>
32#include <string.h>
33#include <ctype.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020034#include <dirent.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020035#include <sys/stat.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020036#include <sys/time.h>
37#include <sys/types.h>
38#include <sys/socket.h>
39#include <netinet/tcp.h>
40#include <netinet/in.h>
41#include <arpa/inet.h>
Olivier Houchardf73629d2017-04-05 22:33:04 +020042#include <net/if.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020043#include <netdb.h>
44#include <fcntl.h>
45#include <errno.h>
46#include <signal.h>
47#include <stdarg.h>
48#include <sys/resource.h>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010049#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020050#include <time.h>
51#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010052#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010053#ifdef USE_CPU_AFFINITY
Willy Tarreaufc6c0322012-11-16 16:12:27 +010054#include <sched.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000055#if defined(__FreeBSD__) || defined(__DragonFly__)
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020056#include <sys/param.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000057#ifdef __FreeBSD__
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020058#include <sys/cpuset.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000059#endif
David Carlier6d5c8412017-11-29 11:02:32 +000060#include <pthread_np.h>
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020061#endif
Willy Tarreaufc6c0322012-11-16 16:12:27 +010062#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020063
64#ifdef DEBUG_FULL
65#include <assert.h>
66#endif
Tim Duesterhusd6942c82017-11-20 15:58:35 +010067#if defined(USE_SYSTEMD)
68#include <systemd/sd-daemon.h>
69#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020070
Willy Tarreau2dd0d472006-06-29 17:53:05 +020071#include <common/base64.h>
72#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020073#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020074#include <common/compat.h>
75#include <common/config.h>
76#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010077#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020078#include <common/memory.h>
79#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010080#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020081#include <common/regex.h>
82#include <common/standard.h>
83#include <common/time.h>
84#include <common/uri_auth.h>
85#include <common/version.h>
Christopher Fauletbe0faa22017-08-29 15:37:10 +020086#include <common/hathreads.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020087
88#include <types/capture.h>
William Lallemandce83b4a2018-10-26 14:47:30 +020089#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020090#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020091#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090092#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020093#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020094
Willy Tarreau0fc45a72007-06-17 00:36:03 +020095#include <proto/acl.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020096#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020097#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020098#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020099#include <proto/channel.h>
William Lallemandce83b4a2018-10-26 14:47:30 +0200100#include <proto/cli.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200101#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200102#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200103#include <proto/filters.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +0200104#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100105#include <proto/hlua.h>
Willy Tarreau61c112a2018-10-02 16:43:32 +0200106#include <proto/http_rules.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200107#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200108#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100109#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200110#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +0100111#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200112#include <proto/proxy.h>
113#include <proto/queue.h>
114#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200115#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200116#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200117#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200118#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200119#include <proto/dns.h>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100120#include <proto/vars.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200121#ifdef USE_OPENSSL
Grant Zhang872f9c22017-01-21 01:10:18 +0000122#include <proto/ssl_sock.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200123#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200124
Willy Tarreau477ecd82010-01-03 21:12:30 +0100125/* list of config files */
126static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200127int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100128int relative_pid = 1; /* process id starting at 1 */
Willy Tarreau387bd4f2017-11-10 19:08:14 +0100129unsigned long pid_bit = 1; /* bit corresponding to the process id */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200130
Olivier Houchard79321b92018-07-26 17:55:11 +0200131volatile unsigned long sleeping_thread_mask; /* Threads that are about to sleep in poll() */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200132/* global options */
133struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100134 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100135 .nbproc = 1,
Christopher Fauletbe0faa22017-08-29 15:37:10 +0200136 .nbthread = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200137 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200138 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100139 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100140 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100141 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200142 .unix_bind = {
143 .ux = {
144 .uid = -1,
145 .gid = -1,
146 .mode = 0,
147 }
148 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200149 .tune = {
150 .bufsize = BUFSIZE,
Willy Tarreau27097842015-09-28 13:53:23 +0200151 .maxrewrite = -1,
Willy Tarreau43961d52010-10-04 20:39:20 +0200152 .chksize = BUFSIZE,
Willy Tarreaua24adf02014-11-27 01:11:56 +0100153 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200154 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200155#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100156 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200157#endif
William Lallemandf3747832012-11-09 12:33:10 +0100158 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100159#ifdef DEFAULT_IDLE_TIMER
160 .idle_timer = DEFAULT_IDLE_TIMER,
161#else
162 .idle_timer = 1000, /* 1 second */
163#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200164 },
Emeric Brun76d88952012-10-05 15:47:31 +0200165#ifdef USE_OPENSSL
166#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200167 .maxsslconn = DEFAULT_MAXSSLCONN,
168#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200169#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200170 /* others NULL OK */
171};
172
Willy Tarreaud80cb4e2018-01-20 19:30:13 +0100173struct activity activity[MAX_THREADS] __attribute__((aligned(64))) = { };
174
Willy Tarreaubaaee002006-06-26 02:48:02 +0200175/*********************************************************************/
176
177int stopping; /* non zero means stopping in progress */
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100178int killed; /* non zero means a hard-stop is triggered */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200179int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
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 Lallemandbc193052018-09-11 10:06:26 +0200222struct mworker_proc *proc_self;
223
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{
373 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreau65e94d12018-08-02 18:12:50 +0200374 printf("Copyright 2000-2018 Willy Tarreau <willy@haproxy.org>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200375}
376
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100377static void display_build_opts()
Willy Tarreau7b066db2007-12-02 11:28:59 +0100378{
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100379 struct build_opts_str *item;
380
Willy Tarreau7b066db2007-12-02 11:28:59 +0100381 printf("Build options :"
382#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100383 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100384#endif
385#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100386 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100387#endif
388#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100389 "\n CC = " BUILD_CC
390#endif
391#ifdef BUILD_CFLAGS
392 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100393#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100394#ifdef BUILD_OPTIONS
395 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100396#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200397 "\n\nDefault settings :"
398 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
399 "\n\n",
400 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200401
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100402 list_for_each_entry(item, &build_opts_list, list) {
403 puts(item->str);
404 }
405
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100406 putchar('\n');
407
Willy Tarreaube5b6852009-10-03 18:57:08 +0200408 list_pollers(stdout);
409 putchar('\n');
Christopher Faulet98d9fe22018-04-10 14:37:32 +0200410 list_mux_proto(stdout);
411 putchar('\n');
Christopher Fauletb3f4e142016-03-07 12:46:38 +0100412 list_filters(stdout);
413 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100414}
415
Willy Tarreaubaaee002006-06-26 02:48:02 +0200416/*
417 * This function prints the command line usage and exits
418 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100419static void usage(char *name)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200420{
421 display_version();
422 fprintf(stderr,
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200423 "Usage : %s [-f <cfgfile|cfgdir>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200424 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200425 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100426 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200427 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200428 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200429 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200430 " -D goes daemon ; -C changes to <dir> before loading files.\n"
William Lallemand095ba4c2017-06-01 17:38:50 +0200431 " -W master-worker mode.\n"
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100432#if defined(USE_SYSTEMD)
433 " -Ws master-worker mode with systemd notify support.\n"
434#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200435 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200436 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200437 " -n sets the maximum total # of connections (%d)\n"
438 " -m limits the usable amount of memory (in MB)\n"
439 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200440 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200441 " -p writes pids of all children to this file\n"
442#if defined(ENABLE_EPOLL)
443 " -de disables epoll() usage even when available\n"
444#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200445#if defined(ENABLE_KQUEUE)
446 " -dk disables kqueue() usage even when available\n"
447#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200448#if defined(ENABLE_POLL)
449 " -dp disables poll() usage even when available\n"
450#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200451#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100452 " -dS disables splice usage (broken on old kernels)\n"
453#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200454#if defined(USE_GETADDRINFO)
455 " -dG disables getaddrinfo() usage\n"
456#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000457#if defined(SO_REUSEPORT)
458 " -dR disables SO_REUSEPORT usage\n"
459#endif
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100460 " -dr ignores server address resolution failures\n"
Emeric Brun850efd52014-01-29 12:24:34 +0100461 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200462 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Olivier Houchardf73629d2017-04-05 22:33:04 +0200463 " -x <unix_socket> get listening sockets from a unix socket\n"
William Lallemande7361152018-10-26 14:47:36 +0200464 " -S <unix_socket>[,<bind options>...] new stats socket for the master\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200465 "\n",
466 name, DEFAULT_MAXCONN, cfg_maxpconn);
467 exit(1);
468}
469
470
471
472/*********************************************************************/
473/* more specific functions ***************************************/
474/*********************************************************************/
475
William Lallemand73b85e72017-06-01 17:38:51 +0200476/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
477 * pids the signal was correctly delivered to.
478 */
479static int tell_old_pids(int sig)
480{
481 int p;
482 int ret = 0;
483 for (p = 0; p < nb_oldpids; p++)
484 if (kill(oldpids[p], sig) == 0)
485 ret++;
486 return ret;
487}
488
489/* return 1 if a pid is a current child otherwise 0 */
490
491int current_child(int pid)
492{
493 int i;
494
495 for (i = 0; i < global.nbproc; i++) {
496 if (children[i] == pid)
497 return 1;
498 }
499 return 0;
500}
501
William Lallemand73b85e72017-06-01 17:38:51 +0200502static void mworker_block_signals()
503{
504 sigset_t set;
505
506 sigemptyset(&set);
507 sigaddset(&set, SIGUSR1);
508 sigaddset(&set, SIGUSR2);
509 sigaddset(&set, SIGHUP);
William Lallemandebf304f2018-09-11 10:06:21 +0200510 sigaddset(&set, SIGCHLD);
William Lallemand6e1796e2018-06-07 11:23:40 +0200511 ha_sigmask(SIG_SETMASK, &set, NULL);
William Lallemand73b85e72017-06-01 17:38:51 +0200512}
513
514static void mworker_unblock_signals()
515{
William Lallemandd3801c12018-09-11 10:06:23 +0200516 haproxy_unblock_signals();
William Lallemand73b85e72017-06-01 17:38:51 +0200517}
518
William Lallemand73b85e72017-06-01 17:38:51 +0200519/*
520 * Send signal to every known children.
521 */
522
523static void mworker_kill(int sig)
524{
525 int i;
526
527 tell_old_pids(sig);
528 if (children) {
529 for (i = 0; i < global.nbproc; i++)
530 kill(children[i], sig);
531 }
William Lallemandbc193052018-09-11 10:06:26 +0200532}
533
534/*
535 * serialize the proc list and put it in the environment
536 */
537static void mworker_proc_list_to_env()
538{
539 char *msg = NULL;
540 struct mworker_proc *child;
541
542 list_for_each_entry(child, &proc_list, list) {
543 if (msg)
William Lallemandf1a62862018-10-26 14:47:29 +0200544 memprintf(&msg, "%s|type=worker;fd=%d;pid=%d;rpid=%d;reloads=%d", msg, child->ipc_fd[0], child->pid, child->relative_pid, child->reloads);
William Lallemandbc193052018-09-11 10:06:26 +0200545 else
William Lallemandf1a62862018-10-26 14:47:29 +0200546 memprintf(&msg, "type=worker;fd=%d;pid=%d;rpid=%d;reloads=%d", child->ipc_fd[0], child->pid, child->relative_pid, child->reloads);
William Lallemandbc193052018-09-11 10:06:26 +0200547 }
548 if (msg)
549 setenv("HAPROXY_CHILDREN", msg, 1);
550}
551
552/*
553 * unserialize the proc list from the environment
554 */
555static void mworker_env_to_proc_list()
556{
557 char *msg, *token = NULL, *s1;
558
559 msg = getenv("HAPROXY_CHILDREN");
560 if (!msg)
561 return;
562
563 while ((token = strtok_r(msg, "|", &s1))) {
564 struct mworker_proc *child;
565 char *subtoken = NULL;
566 char *s2;
567
568 msg = NULL;
569
570 child = calloc(1, sizeof(*child));
571
572 while ((subtoken = strtok_r(token, ";", &s2))) {
573
574 token = NULL;
575
576 if (strncmp(subtoken, "fd=", 3) == 0) {
577 child->ipc_fd[0] = atoi(subtoken+3);
578 } else if (strncmp(subtoken, "pid=", 4) == 0) {
579 child->pid = atoi(subtoken+4);
580 } else if (strncmp(subtoken, "rpid=", 5) == 0) {
581 child->relative_pid = atoi(subtoken+5);
William Lallemandf1a62862018-10-26 14:47:29 +0200582 } else if (strncmp(subtoken, "reloads=", 8) == 0) {
583 /* we reloaded this process once more */
584 child->reloads = atoi(subtoken+8) + 1;
William Lallemandbc193052018-09-11 10:06:26 +0200585 }
586 }
587 if (child->pid)
588 LIST_ADDQ(&proc_list, &child->list);
589 else
590 free(child);
591 }
592
593 unsetenv("HAPROXY_CHILDREN");
William Lallemand73b85e72017-06-01 17:38:51 +0200594}
595
Willy Tarreaubaaee002006-06-26 02:48:02 +0200596/*
William Lallemand75ea0a02017-11-15 19:02:58 +0100597 * Upon a reload, the master worker needs to close all listeners FDs but the mworker_pipe
598 * fd, and the FD provided by fd@
599 */
600static void mworker_cleanlisteners()
601{
602 struct listener *l, *l_next;
603 struct proxy *curproxy;
Willy Tarreau473cf5d2017-12-05 11:14:12 +0100604 struct peers *curpeers;
William Lallemand75ea0a02017-11-15 19:02:58 +0100605
William Lallemand3da97692018-09-11 10:06:19 +0200606 /* we might have to unbind some peers sections from some processes */
607 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
608 if (!curpeers->peers_fe)
609 continue;
Willy Tarreau473cf5d2017-12-05 11:14:12 +0100610
William Lallemand3da97692018-09-11 10:06:19 +0200611 stop_proxy(curpeers->peers_fe);
612 /* disable this peer section so that it kills itself */
613 signal_unregister_handler(curpeers->sighandler);
614 task_delete(curpeers->sync_task);
615 task_free(curpeers->sync_task);
616 curpeers->sync_task = NULL;
617 task_free(curpeers->peers_fe->task);
618 curpeers->peers_fe->task = NULL;
619 curpeers->peers_fe = NULL;
620 }
William Lallemand75ea0a02017-11-15 19:02:58 +0100621
William Lallemand91c13b62018-09-11 10:06:20 +0200622 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
William Lallemand75ea0a02017-11-15 19:02:58 +0100623 list_for_each_entry_safe(l, l_next, &curproxy->conf.listeners, by_fe) {
William Lallemande22f11f2018-09-11 10:06:27 +0200624 /* remove the listener, but not those we need in the master... */
William Lallemanddd319a52018-10-12 10:39:54 +0200625 if (!(l->options & LI_O_MWORKER)) {
626 /* unbind the listener but does not close if
627 the FD is inherited with fd@ from the parent
628 process */
629 if (l->options & LI_O_INHERITED)
630 unbind_listener_no_close(l);
631 else
632 unbind_listener(l);
William Lallemande22f11f2018-09-11 10:06:27 +0200633 delete_listener(l);
William Lallemanddd319a52018-10-12 10:39:54 +0200634 }
William Lallemand75ea0a02017-11-15 19:02:58 +0100635 }
636 }
637}
638
639
640/*
William Lallemand73b85e72017-06-01 17:38:51 +0200641 * remove a pid forom the olpid array and decrease nb_oldpids
642 * return 1 pid was found otherwise return 0
643 */
644
645int delete_oldpid(int pid)
646{
647 int i;
648
649 for (i = 0; i < nb_oldpids; i++) {
650 if (oldpids[i] == pid) {
651 oldpids[i] = oldpids[nb_oldpids - 1];
652 oldpids[nb_oldpids - 1] = 0;
653 nb_oldpids--;
654 return 1;
655 }
656 }
657 return 0;
658}
659
William Lallemand85b0bd92017-06-01 17:38:53 +0200660
661static void get_cur_unixsocket()
662{
663 /* if -x was used, try to update the stat socket if not available anymore */
664 if (global.stats_fe) {
665 struct bind_conf *bind_conf;
666
667 /* pass through all stats socket */
668 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
669 struct listener *l;
670
671 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
672
673 if (l->addr.ss_family == AF_UNIX &&
674 (bind_conf->level & ACCESS_FD_LISTENERS)) {
675 const struct sockaddr_un *un;
676
677 un = (struct sockaddr_un *)&l->addr;
678 /* priority to old_unixsocket */
679 if (!cur_unixsocket) {
680 cur_unixsocket = strdup(un->sun_path);
681 } else {
682 if (old_unixsocket && !strcmp(un->sun_path, old_unixsocket)) {
683 free(cur_unixsocket);
684 cur_unixsocket = strdup(old_unixsocket);
685 return;
686 }
687 }
688 }
689 }
690 }
691 }
692 if (!cur_unixsocket && old_unixsocket)
693 cur_unixsocket = strdup(old_unixsocket);
694}
695
William Lallemand73b85e72017-06-01 17:38:51 +0200696/*
697 * When called, this function reexec haproxy with -sf followed by current
Joseph Herlant03420902018-11-15 10:41:50 -0800698 * children PIDs and possibly old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200699 */
700static void mworker_reload()
701{
702 int next_argc = 0;
703 int j;
704 char *msg = NULL;
705
706 mworker_block_signals();
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100707#if defined(USE_SYSTEMD)
708 if (global.tune.options & GTUNE_USE_SYSTEMD)
709 sd_notify(0, "RELOADING=1");
710#endif
William Lallemand73b85e72017-06-01 17:38:51 +0200711 setenv("HAPROXY_MWORKER_REEXEC", "1", 1);
712
William Lallemandbc193052018-09-11 10:06:26 +0200713 mworker_proc_list_to_env(); /* put the children description in the env */
714
William Lallemand73b85e72017-06-01 17:38:51 +0200715 /* compute length */
716 while (next_argv[next_argc])
717 next_argc++;
718
William Lallemand85b0bd92017-06-01 17:38:53 +0200719 /* 1 for haproxy -sf, 2 for -x /socket */
720 next_argv = realloc(next_argv, (next_argc + 1 + 2 + global.nbproc + nb_oldpids + 1) * sizeof(char *));
William Lallemand73b85e72017-06-01 17:38:51 +0200721 if (next_argv == NULL)
722 goto alloc_error;
723
724
725 /* add -sf <PID>* to argv */
726 if (children || nb_oldpids > 0)
727 next_argv[next_argc++] = "-sf";
728 if (children) {
729 for (j = 0; j < global.nbproc; next_argc++,j++) {
730 next_argv[next_argc] = memprintf(&msg, "%d", children[j]);
731 if (next_argv[next_argc] == NULL)
732 goto alloc_error;
733 msg = NULL;
734 }
735 }
736 /* copy old process PIDs */
737 for (j = 0; j < nb_oldpids; next_argc++,j++) {
738 next_argv[next_argc] = memprintf(&msg, "%d", oldpids[j]);
739 if (next_argv[next_argc] == NULL)
740 goto alloc_error;
741 msg = NULL;
742 }
743 next_argv[next_argc] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200744
William Lallemand2bf6d622017-06-20 11:20:23 +0200745 /* add the -x option with the stat socket */
William Lallemand85b0bd92017-06-01 17:38:53 +0200746 if (cur_unixsocket) {
747
William Lallemand2bf6d622017-06-20 11:20:23 +0200748 next_argv[next_argc++] = "-x";
749 next_argv[next_argc++] = (char *)cur_unixsocket;
750 next_argv[next_argc++] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200751 }
752
William Lallemand123f1f62018-09-11 10:06:29 +0200753 if (getenv("HAPROXY_MWORKER_WAIT_ONLY") == NULL) {
754 struct per_thread_deinit_fct *ptdf;
755
756 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
757 ptdf->fct();
William Lallemandde0ff5a2018-09-11 10:06:24 +0200758 deinit_pollers(); /* we don't want to leak the poller fd */
William Lallemand123f1f62018-09-11 10:06:29 +0200759 }
William Lallemandb3f2be32018-09-11 10:06:18 +0200760
Christopher Faulet767a84b2017-11-24 16:50:31 +0100761 ha_warning("Reexecuting Master process\n");
Tim Duesterhus0436ab72017-11-12 17:39:18 +0100762 execvp(next_argv[0], next_argv);
William Lallemand73b85e72017-06-01 17:38:51 +0200763
Christopher Faulet767a84b2017-11-24 16:50:31 +0100764 ha_warning("Failed to reexecute the master process [%d]: %s\n", pid, strerror(errno));
William Lallemand722d4ca2017-11-15 19:02:55 +0100765 return;
766
William Lallemand73b85e72017-06-01 17:38:51 +0200767alloc_error:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100768 ha_warning("Failed to reexecute the master processs [%d]: Cannot allocate memory\n", pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200769 return;
770}
771
William Lallemand73b85e72017-06-01 17:38:51 +0200772/*
William Lallemandb3f2be32018-09-11 10:06:18 +0200773 * When called, this function reexec haproxy with -sf followed by current
Joseph Herlant03420902018-11-15 10:41:50 -0800774 * children PIDs and possibly old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200775 */
William Lallemandb3f2be32018-09-11 10:06:18 +0200776static void mworker_catch_sighup(struct sig_handler *sh)
William Lallemand73b85e72017-06-01 17:38:51 +0200777{
William Lallemandb3f2be32018-09-11 10:06:18 +0200778 mworker_reload();
779}
William Lallemand73b85e72017-06-01 17:38:51 +0200780
William Lallemandb3f2be32018-09-11 10:06:18 +0200781static void mworker_catch_sigterm(struct sig_handler *sh)
782{
783 int sig = sh->arg;
William Lallemand2f8b31c2017-11-15 19:02:56 +0100784
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100785#if defined(USE_SYSTEMD)
William Lallemandb3f2be32018-09-11 10:06:18 +0200786 if (global.tune.options & GTUNE_USE_SYSTEMD) {
787 sd_notify(0, "STOPPING=1");
788 }
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100789#endif
William Lallemandb3f2be32018-09-11 10:06:18 +0200790 ha_warning("Exiting Master process...\n");
791 mworker_kill(sig);
792}
William Lallemand73b85e72017-06-01 17:38:51 +0200793
William Lallemandb3f2be32018-09-11 10:06:18 +0200794/*
795 * Wait for every children to exit
796 */
William Lallemand73b85e72017-06-01 17:38:51 +0200797
William Lallemandb3f2be32018-09-11 10:06:18 +0200798static void mworker_catch_sigchld(struct sig_handler *sh)
799{
800 int exitpid = -1;
801 int status = 0;
William Lallemandbc193052018-09-11 10:06:26 +0200802 struct mworker_proc *child, *it;
William Lallemand73b85e72017-06-01 17:38:51 +0200803
William Lallemandb3f2be32018-09-11 10:06:18 +0200804restart_wait:
William Lallemand73b85e72017-06-01 17:38:51 +0200805
William Lallemandb3f2be32018-09-11 10:06:18 +0200806 exitpid = waitpid(-1, &status, WNOHANG);
807 if (exitpid > 0) {
William Lallemand73b85e72017-06-01 17:38:51 +0200808 if (WIFEXITED(status))
809 status = WEXITSTATUS(status);
810 else if (WIFSIGNALED(status))
811 status = 128 + WTERMSIG(status);
812 else if (WIFSTOPPED(status))
813 status = 128 + WSTOPSIG(status);
814 else
815 status = 255;
816
William Lallemandbc193052018-09-11 10:06:26 +0200817 list_for_each_entry_safe(child, it, &proc_list, list) {
818 if (child->pid != exitpid)
819 continue;
820
821 LIST_DEL(&child->list);
822 close(child->ipc_fd[0]);
William Lallemandbc193052018-09-11 10:06:26 +0200823 break;
824 }
825
William Lallemand73b85e72017-06-01 17:38:51 +0200826 if (!children) {
William Lallemand18e52a82018-11-06 17:37:13 +0100827 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 +0200828 } else {
829 /* check if exited child was in the current children list */
830 if (current_child(exitpid)) {
William Lallemand18e52a82018-11-06 17:37:13 +0100831 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 +0200832 if (status != 0 && status != 130 && status != 143
William Lallemand4cfede82017-11-24 22:02:34 +0100833 && !(global.tune.options & GTUNE_NOEXIT_ONFAILURE)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100834 ha_alert("exit-on-failure: killing every workers with SIGTERM\n");
William Lallemand91723742018-11-06 17:37:14 +0100835 if (exitcode < 0)
836 exitcode = status;
William Lallemand69f9b3b2017-06-01 17:38:54 +0200837 mworker_kill(SIGTERM);
838 }
William Lallemand73b85e72017-06-01 17:38:51 +0200839 } else {
William Lallemand18e52a82018-11-06 17:37:13 +0100840 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 +0200841 delete_oldpid(exitpid);
842 }
843 }
William Lallemand18e52a82018-11-06 17:37:13 +0100844 free(child);
845
William Lallemandb3f2be32018-09-11 10:06:18 +0200846 /* do it again to check if it was the last worker */
847 goto restart_wait;
William Lallemand73b85e72017-06-01 17:38:51 +0200848 }
William Lallemandb3f2be32018-09-11 10:06:18 +0200849 /* Better rely on the system than on a list of process to check if it was the last one */
850 else if (exitpid == -1 && errno == ECHILD) {
William Lallemand18e52a82018-11-06 17:37:13 +0100851 ha_warning("All workers exited. Exiting... (%d)\n", (exitcode > 0) ? exitcode : status);
William Lallemandb3f2be32018-09-11 10:06:18 +0200852 atexit_flag = 0;
William Lallemand91723742018-11-06 17:37:14 +0100853 if (exitcode > 0)
854 exit(exitcode);
William Lallemandb3f2be32018-09-11 10:06:18 +0200855 exit(status); /* parent must leave using the latest status code known */
856 }
857
William Lallemand73b85e72017-06-01 17:38:51 +0200858}
859
William Lallemandb3f2be32018-09-11 10:06:18 +0200860static void mworker_loop()
861{
862
863#if defined(USE_SYSTEMD)
864 if (global.tune.options & GTUNE_USE_SYSTEMD)
865 sd_notifyf(0, "READY=1\nMAINPID=%lu", (unsigned long)getpid());
866#endif
867
William Lallemandbc193052018-09-11 10:06:26 +0200868 master = 1;
869
William Lallemandb3f2be32018-09-11 10:06:18 +0200870 signal_register_fct(SIGTERM, mworker_catch_sigterm, SIGTERM);
871 signal_register_fct(SIGUSR1, mworker_catch_sigterm, SIGUSR1);
872 signal_register_fct(SIGINT, mworker_catch_sigterm, SIGINT);
873 signal_register_fct(SIGHUP, mworker_catch_sighup, SIGHUP);
874 signal_register_fct(SIGUSR2, mworker_catch_sighup, SIGUSR2);
875 signal_register_fct(SIGCHLD, mworker_catch_sigchld, SIGCHLD);
876
877 mworker_unblock_signals();
878 mworker_cleanlisteners();
879
William Lallemandbc193052018-09-11 10:06:26 +0200880 mworker_catch_sigchld(NULL); /* ensure we clean the children in case
881 some SIGCHLD were lost */
882
William Lallemandb3f2be32018-09-11 10:06:18 +0200883 global.nbthread = 1;
884 relative_pid = 1;
885 pid_bit = 1;
886
887 jobs++; /* this is the "master" job, we want to take care of the
888 signals even if there is no listener so the poll loop don't
889 leave */
890
891 fork_poller();
892 run_thread_poll_loop((int []){0});
893}
William Lallemandcb11fd22017-06-01 17:38:52 +0200894
895/*
William Lallemandf9cc07c2018-09-11 10:06:25 +0200896 * This function initialize haproxy for the master wait mode, it won't fork any
897 * new process and won't parse the configuration
898 */
899static int mworker_wait_mode()
900{
901
902 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
903
904 if (!(global.tune.options & GTUNE_USE_KQUEUE))
905 disable_poller("kqueue");
906
907 if (!(global.tune.options & GTUNE_USE_EPOLL))
908 disable_poller("epoll");
909
910 if (!(global.tune.options & GTUNE_USE_POLL))
911 disable_poller("poll");
912
913 if (!(global.tune.options & GTUNE_USE_SELECT))
914 disable_poller("select");
915
916 if (global.tune.maxpollevents <= 0)
917 global.tune.maxpollevents = MAX_POLL_EVENTS;
918
919 init_pollers();
920
921
922 mworker_loop();
923
924 /* should never be there */
925
926 return -1;
927}
928
929/*
William Lallemandcb11fd22017-06-01 17:38:52 +0200930 * Reexec the process in failure mode, instead of exiting
931 */
932void reexec_on_failure()
933{
934 if (!atexit_flag)
935 return;
936
937 setenv("HAPROXY_MWORKER_WAIT_ONLY", "1", 1);
938
Christopher Faulet767a84b2017-11-24 16:50:31 +0100939 ha_warning("Reexecuting Master process in waitpid mode\n");
William Lallemandcb11fd22017-06-01 17:38:52 +0200940 mworker_reload();
William Lallemandcb11fd22017-06-01 17:38:52 +0200941}
William Lallemand73b85e72017-06-01 17:38:51 +0200942
943
944/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200945 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
946 * a signal zero to all subscribers. This means that it's as easy as
947 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200948 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100949static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200950{
951 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200952 signal_unregister_handler(sh);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100953 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200954}
955
956/*
957 * upon SIGTTOU, we pause everything
958 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100959static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200960{
961 pause_proxies();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100962 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200963}
964
965/*
966 * upon SIGTTIN, let's have a soft stop.
967 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100968static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200969{
Willy Tarreaube58c382011-07-24 18:28:10 +0200970 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200971}
972
973/*
974 * this function dumps every server's state when the process receives SIGHUP.
975 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100976static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200977{
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100978 struct proxy *p = proxies_list;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200979
Christopher Faulet767a84b2017-11-24 16:50:31 +0100980 ha_warning("SIGHUP received, dumping servers states.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200981 while (p) {
982 struct server *s = p->srv;
983
984 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
985 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100986 chunk_printf(&trash,
987 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
988 p->id, s->id,
Emeric Brun52a91d32017-08-31 14:41:55 +0200989 (s->cur_state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100990 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200991 ha_warning("%s\n", trash.area);
992 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200993 s = s->next;
994 }
995
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200996 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
997 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100998 chunk_printf(&trash,
999 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
1000 p->id,
1001 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 +02001002 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01001003 chunk_printf(&trash,
1004 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
1005 p->id,
1006 (p->srv_bck) ? "is running on backup servers" : "has no server available",
1007 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 +02001008 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +01001009 chunk_printf(&trash,
1010 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
1011 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
1012 p->id, p->srv_act, p->srv_bck,
1013 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 +02001014 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001015 ha_warning("%s\n", trash.area);
1016 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001017
1018 p = p->next;
1019 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001020}
1021
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001022static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001023{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001024 /* dump memory usage then free everything possible */
1025 dump_pools();
Willy Tarreaubafbe012017-11-24 17:34:44 +01001026 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001027}
1028
William Lallemande1340412017-12-28 16:09:36 +01001029/*
1030 * This function dup2 the stdio FDs (0,1,2) with <fd>, then closes <fd>
1031 * If <fd> < 0, it opens /dev/null and use it to dup
1032 *
1033 * In the case of chrooting, you have to open /dev/null before the chroot, and
1034 * pass the <fd> to this function
1035 */
1036static void stdio_quiet(int fd)
1037{
1038 if (fd < 0)
1039 fd = open("/dev/null", O_RDWR, 0);
1040
1041 if (fd > -1) {
1042 fclose(stdin);
1043 fclose(stdout);
1044 fclose(stderr);
1045
1046 dup2(fd, 0);
1047 dup2(fd, 1);
1048 dup2(fd, 2);
1049 if (fd > 2)
1050 close(fd);
1051 return;
1052 }
1053
1054 ha_alert("Cannot open /dev/null\n");
1055 exit(EXIT_FAILURE);
1056}
1057
1058
Joseph Herlant03420902018-11-15 10:41:50 -08001059/* This function checks if cfg_cfgfiles contains directories.
1060 * If it finds one, it adds all the files (and only files) it contains
1061 * in cfg_cfgfiles in place of the directory (and removes the directory).
1062 * It adds the files in lexical order.
1063 * It adds only files with .cfg extension.
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001064 * It doesn't add files with name starting with '.'
1065 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001066static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001067{
1068 struct wordlist *wl, *wlb;
1069 char *err = NULL;
1070
1071 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1072 struct stat file_stat;
1073 struct dirent **dir_entries = NULL;
1074 int dir_entries_nb;
1075 int dir_entries_it;
1076
1077 if (stat(wl->s, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001078 ha_alert("Cannot open configuration file/directory %s : %s\n",
1079 wl->s,
1080 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001081 exit(1);
1082 }
1083
1084 if (!S_ISDIR(file_stat.st_mode))
1085 continue;
1086
1087 /* from this point wl->s is a directory */
1088
1089 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
1090 if (dir_entries_nb < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001091 ha_alert("Cannot open configuration directory %s : %s\n",
1092 wl->s,
1093 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001094 exit(1);
1095 }
1096
1097 /* for each element in the directory wl->s */
1098 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
1099 struct dirent *dir_entry = dir_entries[dir_entries_it];
1100 char *filename = NULL;
1101 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
1102
1103 /* don't add filename that begin with .
Joseph Herlant03420902018-11-15 10:41:50 -08001104 * only add filename with .cfg extension
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001105 */
1106 if (dir_entry->d_name[0] == '.' ||
1107 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
1108 goto next_dir_entry;
1109
1110 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001111 ha_alert("Cannot load configuration files %s : out of memory.\n",
1112 filename);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001113 exit(1);
1114 }
1115
1116 if (stat(filename, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001117 ha_alert("Cannot open configuration file %s : %s\n",
1118 wl->s,
1119 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001120 exit(1);
1121 }
1122
1123 /* don't add anything else than regular file in cfg_cfgfiles
1124 * this way we avoid loops
1125 */
1126 if (!S_ISREG(file_stat.st_mode))
1127 goto next_dir_entry;
1128
1129 if (!list_append_word(&wl->list, filename, &err)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001130 ha_alert("Cannot load configuration files %s : %s\n",
1131 filename,
1132 err);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001133 exit(1);
1134 }
1135
1136next_dir_entry:
1137 free(filename);
1138 free(dir_entry);
1139 }
1140
1141 free(dir_entries);
1142
1143 /* remove the current directory (wl) from cfg_cfgfiles */
1144 free(wl->s);
1145 LIST_DEL(&wl->list);
1146 free(wl);
1147 }
1148
1149 free(err);
1150}
1151
Olivier Houchardf73629d2017-04-05 22:33:04 +02001152static int get_old_sockets(const char *unixsocket)
1153{
1154 char *cmsgbuf = NULL, *tmpbuf = NULL;
1155 int *tmpfd = NULL;
1156 struct sockaddr_un addr;
1157 struct cmsghdr *cmsg;
1158 struct msghdr msghdr;
1159 struct iovec iov;
1160 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +02001161 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +02001162 int sock = -1;
1163 int ret = -1;
1164 int ret2 = -1;
1165 int fd_nb;
1166 int got_fd = 0;
1167 int i = 0;
1168 size_t maxoff = 0, curoff = 0;
1169
1170 memset(&msghdr, 0, sizeof(msghdr));
1171 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
1172 if (!cmsgbuf) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001173 ha_warning("Failed to allocate memory to send sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001174 goto out;
1175 }
1176 sock = socket(PF_UNIX, SOCK_STREAM, 0);
1177 if (sock < 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 }
1182 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path));
1183 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
1184 addr.sun_family = PF_UNIX;
1185 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
1186 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001187 ha_warning("Failed to connect to the old process socket '%s'\n",
1188 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001189 goto out;
1190 }
Olivier Houchard54740872017-04-06 14:45:14 +02001191 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001192 iov.iov_base = &fd_nb;
1193 iov.iov_len = sizeof(fd_nb);
1194 msghdr.msg_iov = &iov;
1195 msghdr.msg_iovlen = 1;
1196 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
1197 /* First, get the number of file descriptors to be received */
1198 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001199 ha_warning("Failed to get the number of sockets to be transferred !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001200 goto out;
1201 }
1202 if (fd_nb == 0) {
1203 ret = 0;
1204 goto out;
1205 }
Olivier Houchardf143b802017-11-04 15:13:01 +01001206 tmpbuf = malloc(fd_nb * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int)));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001207 if (tmpbuf == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001208 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001209 goto out;
1210 }
1211 tmpfd = malloc(fd_nb * sizeof(int));
1212 if (tmpfd == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001213 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001214 goto out;
1215 }
1216 msghdr.msg_control = cmsgbuf;
1217 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
Olivier Houchardf143b802017-11-04 15:13:01 +01001218 iov.iov_len = MAX_SEND_FD * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001219 do {
1220 int ret3;
1221
1222 iov.iov_base = tmpbuf + curoff;
1223 ret = recvmsg(sock, &msghdr, 0);
1224 if (ret == -1 && errno == EINTR)
1225 continue;
1226 if (ret <= 0)
1227 break;
1228 /* Send an ack to let the sender know we got the sockets
1229 * and it can send some more
1230 */
1231 do {
1232 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
1233 } while (ret3 == -1 && errno == EINTR);
1234 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
1235 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
1236 if (cmsg->cmsg_level == SOL_SOCKET &&
1237 cmsg->cmsg_type == SCM_RIGHTS) {
1238 size_t totlen = cmsg->cmsg_len -
1239 CMSG_LEN(0);
1240 if (totlen / sizeof(int) + got_fd > fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001241 ha_warning("Got to many sockets !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001242 goto out;
1243 }
1244 /*
1245 * Be paranoid and use memcpy() to avoid any
1246 * potential alignement issue.
1247 */
1248 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
1249 got_fd += totlen / sizeof(int);
1250 }
1251 }
1252 curoff += ret;
1253 } while (got_fd < fd_nb);
1254
1255 if (got_fd != fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001256 ha_warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
1257 fd_nb, got_fd);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001258 goto out;
1259 }
1260 maxoff = curoff;
1261 curoff = 0;
1262 for (i = 0; i < got_fd; i++) {
1263 int fd = tmpfd[i];
1264 socklen_t socklen;
1265 int len;
1266
1267 xfer_sock = calloc(1, sizeof(*xfer_sock));
1268 if (!xfer_sock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001269 ha_warning("Failed to allocate memory in get_old_sockets() !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001270 break;
1271 }
1272 xfer_sock->fd = -1;
1273
1274 socklen = sizeof(xfer_sock->addr);
1275 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001276 ha_warning("Failed to get socket address\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001277 free(xfer_sock);
Olivier Houchardbe7b1ce2017-07-17 17:25:33 +02001278 xfer_sock = NULL;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001279 continue;
1280 }
1281 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001282 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001283 goto out;
1284 }
1285 len = tmpbuf[curoff++];
1286 if (len > 0) {
1287 /* We have a namespace */
1288 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001289 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001290 goto out;
1291 }
1292 xfer_sock->namespace = malloc(len + 1);
1293 if (!xfer_sock->namespace) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001294 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001295 goto out;
1296 }
1297 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
1298 xfer_sock->namespace[len] = 0;
1299 curoff += len;
1300 }
1301 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001302 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001303 goto out;
1304 }
1305 len = tmpbuf[curoff++];
1306 if (len > 0) {
1307 /* We have an interface */
1308 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001309 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001310 goto out;
1311 }
1312 xfer_sock->iface = malloc(len + 1);
1313 if (!xfer_sock->iface) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001314 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001315 goto out;
1316 }
1317 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
Olivier Houchard33e083c2018-03-15 17:48:49 +01001318 xfer_sock->iface[len] = 0;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001319 curoff += len;
1320 }
1321 if (curoff + sizeof(int) > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001322 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001323 goto out;
1324 }
1325 memcpy(&xfer_sock->options, &tmpbuf[curoff],
1326 sizeof(xfer_sock->options));
1327 curoff += sizeof(xfer_sock->options);
1328
1329 xfer_sock->fd = fd;
1330 if (xfer_sock_list)
1331 xfer_sock_list->prev = xfer_sock;
1332 xfer_sock->next = xfer_sock_list;
1333 xfer_sock->prev = NULL;
1334 xfer_sock_list = xfer_sock;
1335 xfer_sock = NULL;
1336 }
1337
1338 ret2 = 0;
1339out:
1340 /* If we failed midway make sure to close the remaining
1341 * file descriptors
1342 */
1343 if (tmpfd != NULL && i < got_fd) {
1344 for (; i < got_fd; i++) {
1345 close(tmpfd[i]);
1346 }
1347 }
1348 free(tmpbuf);
1349 free(tmpfd);
1350 free(cmsgbuf);
1351 if (sock != -1)
1352 close(sock);
1353 if (xfer_sock) {
1354 free(xfer_sock->namespace);
1355 free(xfer_sock->iface);
1356 if (xfer_sock->fd != -1)
1357 close(xfer_sock->fd);
1358 free(xfer_sock);
1359 }
1360 return (ret2);
1361}
1362
Willy Tarreaubaaee002006-06-26 02:48:02 +02001363/*
William Lallemand73b85e72017-06-01 17:38:51 +02001364 * copy and cleanup the current argv
1365 * Remove the -sf /-st parameters
1366 * Return an allocated copy of argv
1367 */
1368
1369static char **copy_argv(int argc, char **argv)
1370{
1371 char **newargv;
William Lallemand2bf6d622017-06-20 11:20:23 +02001372 int i = 0, j = 0;
William Lallemand73b85e72017-06-01 17:38:51 +02001373
1374 newargv = calloc(argc + 2, sizeof(char *));
1375 if (newargv == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001376 ha_warning("Cannot allocate memory\n");
William Lallemand73b85e72017-06-01 17:38:51 +02001377 return NULL;
1378 }
1379
William Lallemand2bf6d622017-06-20 11:20:23 +02001380 while (i < argc) {
1381 /* -sf or -st or -x */
William Lallemand29f690c2018-01-09 23:12:27 +01001382 if (i > 0 && argv[i][0] == '-' &&
1383 ((argv[i][1] == 's' && (argv[i][2] == 'f' || argv[i][2] == 't')) || argv[i][1] == 'x' )) {
William Lallemand2bf6d622017-06-20 11:20:23 +02001384 /* list of pids to finish ('f') or terminate ('t') or unix socket (-x) */
William Lallemand73b85e72017-06-01 17:38:51 +02001385 i++;
1386 while (i < argc && argv[i][0] != '-') {
1387 i++;
1388 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001389 continue;
William Lallemand73b85e72017-06-01 17:38:51 +02001390 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001391
1392 newargv[j++] = argv[i++];
William Lallemand73b85e72017-06-01 17:38:51 +02001393 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001394
William Lallemand73b85e72017-06-01 17:38:51 +02001395 return newargv;
1396}
1397
1398/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001399 * This function initializes all the necessary variables. It only returns
1400 * if everything is OK. If something fails, it exits.
1401 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001402static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001403{
Willy Tarreaubaaee002006-06-26 02:48:02 +02001404 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001405 char *tmp;
1406 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +02001407 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +02001408 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +01001409 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +00001410 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +02001411 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +02001412 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +01001413 struct post_check_fct *pcf;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001414
Christopher Faulete3a5e352017-10-24 13:53:54 +02001415 global.mode = MODE_STARTING;
William Lallemand73b85e72017-06-01 17:38:51 +02001416 next_argv = copy_argv(argc, argv);
1417
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001418 if (!init_trash_buffers(1)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001419 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet748919a2017-07-26 14:59:46 +02001420 exit(1);
1421 }
David du Colombier7af46052012-05-16 14:16:48 +02001422
Emeric Brun2b920a12010-09-23 18:30:22 +02001423 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
1424 * the string in case of truncation, and at least FreeBSD appears not to do
1425 * it.
1426 */
1427 memset(hostname, 0, sizeof(hostname));
1428 gethostname(hostname, sizeof(hostname) - 1);
1429 memset(localpeer, 0, sizeof(localpeer));
1430 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
William Lallemanddaf4cd22018-04-17 16:46:13 +02001431 setenv("HAPROXY_LOCALPEER", localpeer, 1);
Emeric Brun2b920a12010-09-23 18:30:22 +02001432
Willy Tarreaubaaee002006-06-26 02:48:02 +02001433 /*
1434 * Initialize the previously static variables.
1435 */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001436
Willy Tarreau173d9952018-01-26 21:48:23 +01001437 totalconn = actconn = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001438 killed = 0;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001439
Willy Tarreaubaaee002006-06-26 02:48:02 +02001440
1441#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +01001442 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001443#endif
1444
Benoit GARNIERb413c2a2016-03-27 11:08:03 +02001445 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001446 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001447 start_date = now;
1448
Willy Tarreau84310e22014-02-14 11:59:04 +01001449 srandom(now_ms - getpid());
1450
Dragan Dosen835b9212016-02-12 13:23:03 +01001451 init_log();
Willy Tarreau29857942009-05-10 09:01:21 +02001452 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +01001453 if (init_acl() != 0)
1454 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001455 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +02001456 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +02001457 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001458 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +02001459 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001460 init_pendconn();
Willy Tarreau04f1e2d2018-09-10 18:04:24 +02001461 if (!init_http(&err_msg)) {
1462 ha_alert("%s. Aborting.\n", err_msg);
1463 free(err_msg);
1464 abort();
1465 }
Willy Tarreau80587432006-12-24 17:47:20 +01001466 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001467
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001468 /* Initialise lua. */
1469 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001470
Christopher Fauletff2613e2016-11-09 11:36:17 +01001471 /* Initialize process vars */
1472 vars_init(&global.vars, SCOPE_PROC);
1473
Willy Tarreau43b78992009-01-25 15:42:27 +01001474 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001475#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001476 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001477#endif
1478#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001479 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001480#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001481#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +01001482 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001483#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001484#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001485 global.tune.options |= GTUNE_USE_SPLICE;
1486#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001487#if defined(USE_GETADDRINFO)
1488 global.tune.options |= GTUNE_USE_GAI;
1489#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001490#if defined(SO_REUSEPORT)
1491 global.tune.options |= GTUNE_USE_REUSEPORT;
1492#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001493
1494 pid = getpid();
1495 progname = *argv;
1496 while ((tmp = strchr(progname, '/')) != NULL)
1497 progname = tmp + 1;
1498
Kevinm48936af2010-12-22 16:08:21 +00001499 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +02001500 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +00001501
Willy Tarreaubaaee002006-06-26 02:48:02 +02001502 argc--; argv++;
1503 while (argc > 0) {
1504 char *flag;
1505
1506 if (**argv == '-') {
1507 flag = *argv+1;
1508
1509 /* 1 arg */
1510 if (*flag == 'v') {
1511 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +01001512 if (flag[1] == 'v') /* -vv */
1513 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001514 exit(0);
1515 }
1516#if defined(ENABLE_EPOLL)
1517 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +01001518 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001519#endif
1520#if defined(ENABLE_POLL)
1521 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +01001522 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001523#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +02001524#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001525 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +01001526 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001527#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001528#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001529 else if (*flag == 'd' && flag[1] == 'S')
1530 global.tune.options &= ~GTUNE_USE_SPLICE;
1531#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001532#if defined(USE_GETADDRINFO)
1533 else if (*flag == 'd' && flag[1] == 'G')
1534 global.tune.options &= ~GTUNE_USE_GAI;
1535#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001536#if defined(SO_REUSEPORT)
1537 else if (*flag == 'd' && flag[1] == 'R')
1538 global.tune.options &= ~GTUNE_USE_REUSEPORT;
1539#endif
Emeric Brun850efd52014-01-29 12:24:34 +01001540 else if (*flag == 'd' && flag[1] == 'V')
1541 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001542 else if (*flag == 'V')
1543 arg_mode |= MODE_VERBOSE;
1544 else if (*flag == 'd' && flag[1] == 'b')
1545 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +02001546 else if (*flag == 'd' && flag[1] == 'M')
1547 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +01001548 else if (*flag == 'd' && flag[1] == 'r')
1549 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001550 else if (*flag == 'd')
1551 arg_mode |= MODE_DEBUG;
1552 else if (*flag == 'c')
1553 arg_mode |= MODE_CHECK;
William Lallemand095ba4c2017-06-01 17:38:50 +02001554 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +02001555 arg_mode |= MODE_DAEMON;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001556 else if (*flag == 'W' && flag[1] == 's') {
Lukas Tribusf46bf952017-11-21 12:39:34 +01001557 arg_mode |= MODE_MWORKER | MODE_FOREGROUND;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001558#if defined(USE_SYSTEMD)
1559 global.tune.options |= GTUNE_USE_SYSTEMD;
1560#else
Christopher Faulet767a84b2017-11-24 16:50:31 +01001561 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 +01001562 usage(progname);
1563#endif
1564 }
William Lallemand095ba4c2017-06-01 17:38:50 +02001565 else if (*flag == 'W')
1566 arg_mode |= MODE_MWORKER;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001567 else if (*flag == 'q')
1568 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001569 else if (*flag == 'x') {
William Lallemand45eff442017-06-19 15:57:55 +02001570 if (argc <= 1 || argv[1][0] == '-') {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001571 ha_alert("Unix socket path expected with the -x flag\n\n");
William Lallemand45eff442017-06-19 15:57:55 +02001572 usage(progname);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001573 }
William Lallemand4fc09692017-06-19 16:37:19 +02001574 if (old_unixsocket)
Christopher Faulet767a84b2017-11-24 16:50:31 +01001575 ha_warning("-x option already set, overwriting the value\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001576 old_unixsocket = argv[1];
William Lallemand4fc09692017-06-19 16:37:19 +02001577
Olivier Houchardf73629d2017-04-05 22:33:04 +02001578 argv++;
1579 argc--;
1580 }
William Lallemande7361152018-10-26 14:47:36 +02001581 else if (*flag == 'S') {
1582 struct wordlist *c;
1583
1584 if (argc <= 1 || argv[1][0] == '-') {
1585 ha_alert("Socket and optional bind parameters expected with the -S flag\n");
1586 usage(progname);
1587 }
1588 if ((c = malloc(sizeof(*c))) == NULL || (c->s = strdup(argv[1])) == NULL) {
1589 ha_alert("Cannot allocate memory\n");
1590 exit(EXIT_FAILURE);
1591 }
1592 LIST_ADD(&mworker_cli_conf, &c->list);
1593
1594 argv++;
1595 argc--;
1596 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001597 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
1598 /* list of pids to finish ('f') or terminate ('t') */
1599
1600 if (flag[1] == 'f')
1601 oldpids_sig = SIGUSR1; /* finish then exit */
1602 else
1603 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001604 while (argc > 1 && argv[1][0] != '-') {
Chris Lane236062f2018-02-05 23:15:44 +00001605 char * endptr = NULL;
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001606 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
1607 if (!oldpids) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001608 ha_alert("Cannot allocate old pid : out of memory.\n");
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001609 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001610 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001611 argc--; argv++;
Chris Lane236062f2018-02-05 23:15:44 +00001612 errno = 0;
1613 oldpids[nb_oldpids] = strtol(*argv, &endptr, 10);
1614 if (errno) {
1615 ha_alert("-%2s option: failed to parse {%s}: %s\n",
1616 flag,
1617 *argv, strerror(errno));
1618 exit(1);
1619 } else if (endptr && strlen(endptr)) {
1620 while (isspace(*endptr)) endptr++;
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001621 if (*endptr != 0) {
Chris Lane236062f2018-02-05 23:15:44 +00001622 ha_alert("-%2s option: some bytes unconsumed in PID list {%s}\n",
1623 flag, endptr);
1624 exit(1);
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001625 }
Chris Lane236062f2018-02-05 23:15:44 +00001626 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001627 if (oldpids[nb_oldpids] <= 0)
1628 usage(progname);
1629 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001630 }
1631 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001632 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
1633 /* now that's a cfgfile list */
1634 argv++; argc--;
1635 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001636 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001637 ha_alert("Cannot load configuration file/directory %s : %s\n",
1638 *argv,
1639 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +02001640 exit(1);
1641 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001642 argv++; argc--;
1643 }
1644 break;
1645 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001646 else { /* >=2 args */
1647 argv++; argc--;
1648 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001649 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001650
1651 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +02001652 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001653 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +01001654 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001655 case 'N' : cfg_maxpconn = atol(*argv); break;
William Lallemanddaf4cd22018-04-17 16:46:13 +02001656 case 'L' :
1657 strncpy(localpeer, *argv, sizeof(localpeer) - 1);
1658 setenv("HAPROXY_LOCALPEER", localpeer, 1);
1659 break;
Willy Tarreau5d01a632009-06-22 16:02:30 +02001660 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +02001661 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001662 ha_alert("Cannot load configuration file/directory %s : %s\n",
1663 *argv,
1664 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +02001665 exit(1);
1666 }
Willy Tarreau5d01a632009-06-22 16:02:30 +02001667 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001668 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001669 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001670 }
1671 }
1672 }
1673 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001674 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001675 argv++; argc--;
1676 }
1677
Christopher Faulete3a5e352017-10-24 13:53:54 +02001678 global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
1679 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001680
William Lallemandcb11fd22017-06-01 17:38:52 +02001681 /* Master workers wait mode */
1682 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_WAIT_ONLY") != NULL)) {
1683
1684 unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
William Lallemandf9cc07c2018-09-11 10:06:25 +02001685 mworker_wait_mode();
William Lallemandcb11fd22017-06-01 17:38:52 +02001686 }
1687
1688 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") != NULL)) {
1689 atexit_flag = 1;
1690 atexit(reexec_on_failure);
1691 }
1692
Willy Tarreau576132e2011-09-10 19:26:56 +02001693 if (change_dir && chdir(change_dir) < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001694 ha_alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
Willy Tarreau576132e2011-09-10 19:26:56 +02001695 exit(1);
1696 }
1697
Joseph Herlant03420902018-11-15 10:41:50 -08001698 /* handle cfgfiles that are actually directories */
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001699 cfgfiles_expand_directories();
1700
1701 if (LIST_ISEMPTY(&cfg_cfgfiles))
1702 usage(progname);
1703
Willy Tarreaubaaee002006-06-26 02:48:02 +02001704 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001705
1706 init_default_instance();
1707
Willy Tarreau477ecd82010-01-03 21:12:30 +01001708 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +01001709 int ret;
1710
Willy Tarreau477ecd82010-01-03 21:12:30 +01001711 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +01001712 if (ret == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001713 ha_alert("Could not open configuration file %s : %s\n",
1714 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +01001715 exit(1);
1716 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +01001717 if (ret & (ERR_ABORT|ERR_FATAL))
Christopher Faulet767a84b2017-11-24 16:50:31 +01001718 ha_alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +01001719 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +02001720 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +02001721 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001722 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001723
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001724 /* do not try to resolve arguments nor to spot inconsistencies when
1725 * the configuration contains fatal errors caused by files not found
1726 * or failed memory allocations.
1727 */
1728 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001729 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001730 exit(1);
1731 }
1732
William Lallemandce83b4a2018-10-26 14:47:30 +02001733 if (global.mode & MODE_MWORKER) {
1734 int proc;
William Lallemande7361152018-10-26 14:47:36 +02001735 struct wordlist *it, *c;
William Lallemandce83b4a2018-10-26 14:47:30 +02001736
1737 for (proc = 0; proc < global.nbproc; proc++) {
1738 struct mworker_proc *tmproc;
1739
1740 tmproc = malloc(sizeof(*tmproc));
1741 if (!tmproc) {
1742 ha_alert("Cannot allocate process structures.\n");
1743 exit(EXIT_FAILURE);
1744 }
1745
1746 tmproc->pid = -1;
1747 tmproc->reloads = 0;
1748 tmproc->relative_pid = 1 + proc;
William Lallemand550db6d2018-11-06 17:37:12 +01001749 tmproc->ipc_fd[0] = -1;
1750 tmproc->ipc_fd[1] = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001751
1752 if (mworker_cli_sockpair_new(tmproc, proc) < 0) {
1753 exit(EXIT_FAILURE);
1754 }
1755
1756 LIST_ADDQ(&proc_list, &tmproc->list);
1757 }
William Lallemand1b663612018-10-26 14:47:33 +02001758 mworker_env_to_proc_list(); /* get the info of the children in the env */
William Lallemand8a022572018-10-26 14:47:35 +02001759
William Lallemande7361152018-10-26 14:47:36 +02001760
William Lallemand550db6d2018-11-06 17:37:12 +01001761 if (!LIST_ISEMPTY(&mworker_cli_conf)) {
William Lallemande7361152018-10-26 14:47:36 +02001762
William Lallemand550db6d2018-11-06 17:37:12 +01001763 if (mworker_cli_proxy_create() < 0) {
William Lallemande7361152018-10-26 14:47:36 +02001764 ha_alert("Can't create the master's CLI.\n");
1765 exit(EXIT_FAILURE);
1766 }
William Lallemande7361152018-10-26 14:47:36 +02001767
William Lallemand550db6d2018-11-06 17:37:12 +01001768 list_for_each_entry_safe(c, it, &mworker_cli_conf, list) {
1769
1770 if (mworker_cli_proxy_new_listener(c->s) < 0) {
1771 ha_alert("Can't create the master's CLI.\n");
1772 exit(EXIT_FAILURE);
1773 }
1774 LIST_DEL(&c->list);
1775 free(c->s);
1776 free(c);
1777 }
1778 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001779 }
1780
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +01001781 pattern_finalize_config();
1782
Willy Tarreaubb925012009-07-23 13:36:36 +02001783 err_code |= check_config_validity();
1784 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001785 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001786 exit(1);
1787 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001788
Willy Tarreau70060452015-12-14 12:46:07 +01001789 /* recompute the amount of per-process memory depending on nbproc and
1790 * the shared SSL cache size (allowed to exist in all processes).
1791 */
1792 if (global.rlimit_memmax_all) {
1793#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
1794 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
1795
1796 global.rlimit_memmax =
1797 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
1798 ssl_cache_bytes) / global.nbproc +
1799 ssl_cache_bytes + 1048575LL) / 1048576LL;
1800#else
1801 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
1802#endif
1803 }
1804
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001805#ifdef CONFIG_HAP_NS
1806 err_code |= netns_init();
1807 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001808 ha_alert("Failed to initialize namespace support.\n");
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001809 exit(1);
1810 }
1811#endif
1812
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001813 /* Apply server states */
1814 apply_server_state();
1815
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001816 for (px = proxies_list; px; px = px->next)
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001817 srv_compute_all_admin_states(px);
1818
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001819 /* Apply servers' configured address */
1820 err_code |= srv_init_addr();
1821 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001822 ha_alert("Failed to initialize server(s) addr.\n");
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001823 exit(1);
1824 }
1825
Willy Tarreaubaaee002006-06-26 02:48:02 +02001826 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001827 struct peers *pr;
1828 struct proxy *px;
1829
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001830 for (pr = cfg_peers; pr; pr = pr->next)
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001831 if (pr->peers_fe)
1832 break;
1833
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001834 for (px = proxies_list; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02001835 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001836 break;
1837
1838 if (pr || px) {
1839 /* At least one peer or one listener has been found */
1840 qfprintf(stdout, "Configuration file is valid\n");
1841 exit(0);
1842 }
1843 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
1844 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001845 }
1846
Emeric Brunc60def82017-09-27 14:59:38 +02001847 global_listener_queue_task = task_new(MAX_THREADS_MASK);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001848 if (!global_listener_queue_task) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001849 ha_alert("Out of memory when initializing global task\n");
Willy Tarreaue9b26022011-08-01 20:57:55 +02001850 exit(1);
1851 }
1852 /* very simple initialization, users will queue the task if needed */
1853 global_listener_queue_task->context = NULL; /* not even a context! */
1854 global_listener_queue_task->process = manage_global_listener_queue;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001855
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001856 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02001857 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02001858
Willy Tarreaue6945732016-12-21 19:57:00 +01001859 list_for_each_entry(pcf, &post_check_list, list) {
1860 err_code |= pcf->fct();
1861 if (err_code & (ERR_ABORT|ERR_FATAL))
1862 exit(1);
1863 }
1864
Willy Tarreaubaaee002006-06-26 02:48:02 +02001865 if (cfg_maxconn > 0)
1866 global.maxconn = cfg_maxconn;
1867
1868 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02001869 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001870 global.pidfile = strdup(cfg_pidfile);
1871 }
1872
Willy Tarreaud0256482015-01-15 21:45:22 +01001873 /* Now we want to compute the maxconn and possibly maxsslconn values.
1874 * It's a bit tricky. If memmax is not set, maxconn defaults to
1875 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
1876 *
1877 * If memmax is set, then it depends on which values are set. If
1878 * maxsslconn is set, we use memmax to determine how many cleartext
1879 * connections may be added, and set maxconn to the sum of the two.
1880 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1881 * the remaining amount of memory between memmax and the cleartext
1882 * connections. If neither are set, then it is considered that all
1883 * connections are SSL-capable, and maxconn is computed based on this,
1884 * then maxsslconn accordingly. We need to know if SSL is used on the
1885 * frontends, backends, or both, because when it's used on both sides,
1886 * we need twice the value for maxsslconn, but we only count the
1887 * handshake once since it is not performed on the two sides at the
1888 * same time (frontend-side is terminated before backend-side begins).
1889 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001890 * ssl_handshake_cost during its initialization. In any case, if
1891 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1892 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001893 */
1894 if (!global.rlimit_memmax) {
1895 if (global.maxconn == 0) {
1896 global.maxconn = DEFAULT_MAXCONN;
1897 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1898 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1899 }
1900 }
1901#ifdef USE_OPENSSL
1902 else if (!global.maxconn && !global.maxsslconn &&
1903 (global.ssl_used_frontend || global.ssl_used_backend)) {
1904 /* memmax is set, compute everything automatically. Here we want
1905 * to ensure that all SSL connections will be served. We take
1906 * care of the number of sides where SSL is used, and consider
1907 * the worst case : SSL used on both sides and doing a handshake
1908 * simultaneously. Note that we can't have more than maxconn
1909 * handshakes at a time by definition, so for the worst case of
1910 * two SSL conns per connection, we count a single handshake.
1911 */
1912 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1913 int64_t mem = global.rlimit_memmax * 1048576ULL;
1914
1915 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1916 mem -= global.maxzlibmem;
1917 mem = mem * MEM_USABLE_RATIO;
1918
1919 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001920 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001921 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1922 global.ssl_handshake_max_cost); // 1 handshake per connection max
1923
1924 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001925#ifdef SYSTEM_MAXCONN
1926 if (global.maxconn > DEFAULT_MAXCONN)
1927 global.maxconn = DEFAULT_MAXCONN;
1928#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001929 global.maxsslconn = sides * global.maxconn;
1930 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1931 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1932 global.maxconn, global.maxsslconn);
1933 }
1934 else if (!global.maxsslconn &&
1935 (global.ssl_used_frontend || global.ssl_used_backend)) {
1936 /* memmax and maxconn are known, compute maxsslconn automatically.
1937 * maxsslconn being forced, we don't know how many of it will be
1938 * on each side if both sides are being used. The worst case is
1939 * when all connections use only one SSL instance because
1940 * handshakes may be on two sides at the same time.
1941 */
1942 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1943 int64_t mem = global.rlimit_memmax * 1048576ULL;
1944 int64_t sslmem;
1945
1946 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1947 mem -= global.maxzlibmem;
1948 mem = mem * MEM_USABLE_RATIO;
1949
Willy Tarreau87b09662015-04-03 00:22:06 +02001950 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001951 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1952 global.maxsslconn = round_2dig(global.maxsslconn);
1953
1954 if (sslmem <= 0 || global.maxsslconn < sides) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001955 ha_alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1956 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1957 "without SSL is %d, but %d was found and SSL is in use.\n",
1958 global.rlimit_memmax,
1959 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
1960 global.maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001961 exit(1);
1962 }
1963
1964 if (global.maxsslconn > sides * global.maxconn)
1965 global.maxsslconn = sides * global.maxconn;
1966
1967 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1968 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1969 }
1970#endif
1971 else if (!global.maxconn) {
1972 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1973 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1974 int64_t mem = global.rlimit_memmax * 1048576ULL;
1975 int64_t clearmem;
1976
1977 if (global.ssl_used_frontend || global.ssl_used_backend)
1978 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1979
1980 mem -= global.maxzlibmem;
1981 mem = mem * MEM_USABLE_RATIO;
1982
1983 clearmem = mem;
1984 if (sides)
1985 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1986
Willy Tarreau87b09662015-04-03 00:22:06 +02001987 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001988 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001989#ifdef SYSTEM_MAXCONN
1990 if (global.maxconn > DEFAULT_MAXCONN)
1991 global.maxconn = DEFAULT_MAXCONN;
1992#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001993
1994 if (clearmem <= 0 || !global.maxconn) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001995 ha_alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
1996 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1997 "is %d, but %d was found.\n",
1998 global.rlimit_memmax,
1999 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
2000 global.maxsslconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01002001 exit(1);
2002 }
2003
2004 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2005 if (sides && global.maxsslconn > sides * global.maxconn) {
2006 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
2007 "to be limited to %d. Better reduce global.maxsslconn to get more "
2008 "room for extra connections.\n", global.maxsslconn, global.maxconn);
2009 }
2010 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
2011 }
2012 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002013
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002014 if (!global.maxpipes) {
2015 /* maxpipes not specified. Count how many frontends and backends
2016 * may be using splicing, and bound that to maxconn.
2017 */
2018 struct proxy *cur;
2019 int nbfe = 0, nbbe = 0;
2020
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002021 for (cur = proxies_list; cur; cur = cur->next) {
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002022 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
2023 if (cur->cap & PR_CAP_FE)
2024 nbfe += cur->maxconn;
2025 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +01002026 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002027 }
2028 }
2029 global.maxpipes = MAX(nbfe, nbbe);
2030 if (global.maxpipes > global.maxconn)
2031 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +01002032 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002033 }
2034
2035
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002036 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002037 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01002038 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Emeric Brunece0c332017-12-06 13:51:49 +01002039 /* compute fd used by async engines */
2040 if (global.ssl_used_async_engines) {
2041 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
2042 global.maxsock += global.maxconn * sides * global.ssl_used_async_engines;
2043 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002044
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002045 if (global.stats_fe)
2046 global.maxsock += global.stats_fe->maxconn;
2047
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002048 if (cfg_peers) {
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002049 /* peers also need to bypass global maxconn */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002050 struct peers *p = cfg_peers;
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002051
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002052 for (p = cfg_peers; p; p = p->next)
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002053 if (p->peers_fe)
2054 global.maxsock += p->peers_fe->maxconn;
2055 }
2056
Willy Tarreau1db37712007-06-03 17:16:49 +02002057 if (global.tune.maxpollevents <= 0)
2058 global.tune.maxpollevents = MAX_POLL_EVENTS;
2059
Olivier Houchard1599b802018-05-24 18:59:04 +02002060 if (global.tune.runqueue_depth <= 0)
2061 global.tune.runqueue_depth = RUNQUEUE_DEPTH;
2062
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01002063 if (global.tune.recv_enough == 0)
2064 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
2065
Willy Tarreau27097842015-09-28 13:53:23 +02002066 if (global.tune.maxrewrite < 0)
2067 global.tune.maxrewrite = MAXREWRITE;
2068
Willy Tarreau27a674e2009-08-17 07:23:33 +02002069 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
2070 global.tune.maxrewrite = global.tune.bufsize / 2;
2071
Willy Tarreaubaaee002006-06-26 02:48:02 +02002072 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
2073 /* command line debug mode inhibits configuration mode */
William Lallemand095ba4c2017-06-01 17:38:50 +02002074 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002075 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
2076 }
2077
William Lallemand095ba4c2017-06-01 17:38:50 +02002078 if (arg_mode & MODE_DAEMON) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002079 /* command line daemon mode inhibits foreground and debug modes mode */
2080 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
William Lallemand095ba4c2017-06-01 17:38:50 +02002081 global.mode |= arg_mode & MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002082 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002083
2084 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02002085
William Lallemand095ba4c2017-06-01 17:38:50 +02002086 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002087 ha_warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
William Lallemand095ba4c2017-06-01 17:38:50 +02002088 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002089 }
2090
William Lallemand095ba4c2017-06-01 17:38:50 +02002091 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_MWORKER))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002092 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002093 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 +02002094 global.nbproc = 1;
2095 }
2096
2097 if (global.nbproc < 1)
2098 global.nbproc = 1;
2099
Christopher Fauletbe0faa22017-08-29 15:37:10 +02002100 if (global.nbthread < 1)
2101 global.nbthread = 1;
2102
Christopher Faulet3ef26392017-08-29 16:46:57 +02002103 /* Realloc trash buffers because global.tune.bufsize may have changed */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002104 if (!init_trash_buffers(0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002105 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet3ef26392017-08-29 16:46:57 +02002106 exit(1);
2107 }
2108
Christopher Faulet96d44832017-11-14 22:02:30 +01002109 if (!init_log_buffers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002110 ha_alert("failed to initialize log buffers.\n");
Christopher Faulet96d44832017-11-14 22:02:30 +01002111 exit(1);
2112 }
2113
Willy Tarreauef1d1f82007-04-16 00:25:25 +02002114 /*
2115 * Note: we could register external pollers here.
2116 * Built-in pollers have been registered before main().
2117 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02002118
Willy Tarreau43b78992009-01-25 15:42:27 +01002119 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02002120 disable_poller("kqueue");
2121
Willy Tarreau43b78992009-01-25 15:42:27 +01002122 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002123 disable_poller("epoll");
2124
Willy Tarreau43b78992009-01-25 15:42:27 +01002125 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002126 disable_poller("poll");
2127
Willy Tarreau43b78992009-01-25 15:42:27 +01002128 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002129 disable_poller("select");
2130
2131 /* Note: we could disable any poller by name here */
2132
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002133 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02002134 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002135 fprintf(stderr, "\n");
2136 list_filters(stderr);
2137 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002138
Willy Tarreau4f60f162007-04-08 16:39:58 +02002139 if (!init_pollers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002140 ha_alert("No polling mechanism available.\n"
2141 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
2142 " is too low on this platform to support maxconn and the number of listeners\n"
2143 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
2144 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
2145 " global maxconn setting to accommodate the system's limitation. For reference,\n"
2146 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
2147 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
2148 " check build settings using 'haproxy -vv'.\n\n",
2149 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002150 exit(1);
2151 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002152 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2153 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002154 }
2155
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002156 if (!global.node)
2157 global.node = strdup(hostname);
2158
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01002159 if (!hlua_post_init())
2160 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01002161
Maxime de Roucy0f503922016-05-13 23:52:55 +02002162 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002163}
2164
Simon Horman6fb82592011-07-15 13:14:11 +09002165static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09002166{
Simon Hormanac821422011-07-15 13:14:09 +09002167 struct acl_term_suite *suite, *suiteb;
2168 struct acl_term *term, *termb;
2169
Simon Horman6fb82592011-07-15 13:14:11 +09002170 if (!cond)
2171 return;
2172
2173 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
2174 list_for_each_entry_safe(term, termb, &suite->terms, list) {
2175 LIST_DEL(&term->list);
2176 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09002177 }
Simon Horman6fb82592011-07-15 13:14:11 +09002178 LIST_DEL(&suite->list);
2179 free(suite);
2180 }
2181
2182 free(cond);
2183}
2184
2185static void deinit_tcp_rules(struct list *rules)
2186{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02002187 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09002188
2189 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09002190 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09002191 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09002192 free(trule);
2193 }
2194}
2195
Simon Horman6fb82592011-07-15 13:14:11 +09002196static void deinit_stick_rules(struct list *rules)
2197{
2198 struct sticking_rule *rule, *ruleb;
2199
2200 list_for_each_entry_safe(rule, ruleb, rules, list) {
2201 LIST_DEL(&rule->list);
2202 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02002203 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09002204 free(rule);
2205 }
2206}
2207
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002208void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002209{
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002210 struct proxy *p = proxies_list, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002211 struct cap_hdr *h,*h_next;
2212 struct server *s,*s_next;
2213 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002214 struct acl_cond *cond, *condb;
2215 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002216 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002217 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002218 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002219 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002220 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01002221 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002222 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02002223 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01002224 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002225 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002226 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01002227 struct post_deinit_fct *pdf;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002228 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002229
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002230 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002231 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02002232 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002233 free(p->id);
2234 free(p->check_req);
2235 free(p->cookie_name);
2236 free(p->cookie_domain);
2237 free(p->url_param_name);
2238 free(p->capture_name);
2239 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09002240 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02002241 if (p->conf.logformat_string != default_http_log_format &&
2242 p->conf.logformat_string != default_tcp_log_format &&
2243 p->conf.logformat_string != clf_http_log_format)
2244 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02002245
Willy Tarreau62a61232013-04-12 18:13:46 +02002246 free(p->conf.lfs_file);
2247 free(p->conf.uniqueid_format_string);
2248 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08002249 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002250
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002251 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
2252 free(p->conf.logformat_sd_string);
2253 free(p->conf.lfsd_file);
2254
Willy Tarreaua534fea2008-08-03 12:19:50 +02002255 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02002256 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002257
Willy Tarreauf4f04122010-01-28 18:10:50 +01002258 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
2259 LIST_DEL(&cwl->list);
2260 free(cwl->s);
2261 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002262 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002263
Willy Tarreauf4f04122010-01-28 18:10:50 +01002264 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
2265 LIST_DEL(&cwl->list);
2266 free(cwl->s);
2267 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002268 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002269
Willy Tarreaub80c2302007-11-30 20:51:32 +01002270 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
2271 LIST_DEL(&cond->list);
2272 prune_acl_cond(cond);
2273 free(cond);
2274 }
2275
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002276 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002277 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002278 regex_free(exp->preg);
2279 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002280 }
2281
Willy Tarreau98d04852015-05-26 12:18:29 +02002282 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002283 expb = exp;
2284 exp = exp->next;
2285 free(expb);
2286 }
2287
2288 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002289 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002290 regex_free(exp->preg);
2291 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002292 }
2293
Willy Tarreau98d04852015-05-26 12:18:29 +02002294 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002295 expb = exp;
2296 exp = exp->next;
2297 free(expb);
2298 }
2299
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002300 /* build a list of unique uri_auths */
2301 if (!ua)
2302 ua = p->uri_auth;
2303 else {
2304 /* check if p->uri_auth is unique */
2305 for (uap = ua; uap; uap=uap->next)
2306 if (uap == p->uri_auth)
2307 break;
2308
Willy Tarreauaccc4e12008-06-24 11:14:45 +02002309 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002310 /* add it, if it is */
2311 p->uri_auth->next = ua;
2312 ua = p->uri_auth;
2313 }
2314 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002315
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002316 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
2317 LIST_DEL(&acl->list);
2318 prune_acl(acl);
2319 free(acl);
2320 }
2321
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002322 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
2323 LIST_DEL(&srule->list);
2324 prune_acl_cond(srule->cond);
2325 free(srule->cond);
2326 free(srule);
2327 }
2328
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002329 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
2330 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002331 if (rule->cond) {
2332 prune_acl_cond(rule->cond);
2333 free(rule->cond);
Thierry FOURNIER / OZON.IO4ed1c952016-11-24 23:57:54 +01002334 free(rule->file);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002335 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002336 free(rule);
2337 }
2338
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002339 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
2340 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01002341 if (rdr->cond) {
2342 prune_acl_cond(rdr->cond);
2343 free(rdr->cond);
2344 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002345 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01002346 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
2347 LIST_DEL(&lf->list);
2348 free(lf);
2349 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002350 free(rdr);
2351 }
2352
William Lallemand0f99e342011-10-12 17:50:54 +02002353 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
2354 LIST_DEL(&log->list);
2355 free(log);
2356 }
2357
William Lallemand723b73a2012-02-08 16:37:49 +01002358 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
2359 LIST_DEL(&lf->list);
2360 free(lf);
2361 }
2362
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002363 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
2364 LIST_DEL(&lf->list);
2365 free(lf);
2366 }
2367
Simon Hormanac821422011-07-15 13:14:09 +09002368 deinit_tcp_rules(&p->tcp_req.inspect_rules);
2369 deinit_tcp_rules(&p->tcp_req.l4_rules);
2370
Simon Horman6fb82592011-07-15 13:14:11 +09002371 deinit_stick_rules(&p->storersp_rules);
2372 deinit_stick_rules(&p->sticking_rules);
2373
Willy Tarreaubaaee002006-06-26 02:48:02 +02002374 h = p->req_cap;
2375 while (h) {
2376 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002377 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002378 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002379 free(h);
2380 h = h_next;
2381 }/* end while(h) */
2382
2383 h = p->rsp_cap;
2384 while (h) {
2385 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002386 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002387 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002388 free(h);
2389 h = h_next;
2390 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002391
Willy Tarreaubaaee002006-06-26 02:48:02 +02002392 s = p->srv;
2393 while (s) {
2394 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002395
Willy Tarreau5b3a2022012-09-28 15:01:02 +02002396 if (s->check.task) {
2397 task_delete(s->check.task);
2398 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002399 }
Simon Hormand60d6912013-11-25 10:46:36 +09002400 if (s->agent.task) {
2401 task_delete(s->agent.task);
2402 task_free(s->agent.task);
2403 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002404
Willy Tarreau2e993902011-10-31 11:53:20 +01002405 if (s->warmup) {
2406 task_delete(s->warmup);
2407 task_free(s->warmup);
2408 }
2409
Willy Tarreaua534fea2008-08-03 12:19:50 +02002410 free(s->id);
2411 free(s->cookie);
Willy Tarreauc9fa0482018-07-10 17:43:27 +02002412 free(s->check.bi.area);
2413 free(s->check.bo.area);
2414 free(s->agent.bi.area);
2415 free(s->agent.bo.area);
James Brown55f9ff12015-10-21 18:19:05 -07002416 free(s->agent.send_string);
Christopher Faulet67957bd2017-09-27 11:00:59 +02002417 free(s->hostname_dn);
Sárközi, László34c01792014-09-05 10:08:23 +02002418 free((char*)s->conf.file);
Willy Tarreau17d45382016-12-22 21:16:08 +01002419
2420 if (s->use_ssl || s->check.use_ssl) {
2421 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
2422 xprt_get(XPRT_SSL)->destroy_srv(s);
2423 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002424 HA_SPIN_DESTROY(&s->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002425 free(s);
2426 s = s_next;
2427 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002428
Willy Tarreau4348fad2012-09-20 16:48:07 +02002429 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002430 /*
2431 * Zombie proxy, the listener just pretend to be up
2432 * because they still hold an opened fd.
2433 * Close it and give the listener its real state.
2434 */
2435 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
2436 close(l->fd);
2437 l->state = LI_INIT;
2438 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02002439 unbind_listener(l);
2440 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002441 LIST_DEL(&l->by_fe);
2442 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002443 free(l->name);
2444 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002445 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002446 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002447
Willy Tarreau4348fad2012-09-20 16:48:07 +02002448 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002449 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01002450 if (bind_conf->xprt->destroy_bind_conf)
2451 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002452 free(bind_conf->file);
2453 free(bind_conf->arg);
2454 LIST_DEL(&bind_conf->by_fe);
2455 free(bind_conf);
2456 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02002457
Christopher Fauletd7c91962015-04-30 11:48:27 +02002458 flt_deinit(p);
2459
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002460 free(p->desc);
2461 free(p->fwdfor_hdr_name);
2462
Willy Tarreauff011f22011-01-06 17:51:27 +01002463 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06002464 free_http_res_rules(&p->http_res_rules);
Willy Tarreau1f89b182017-11-22 16:53:53 +01002465 task_free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01002466
Willy Tarreaubafbe012017-11-24 17:34:44 +01002467 pool_destroy(p->req_cap_pool);
2468 pool_destroy(p->rsp_cap_pool);
2469 pool_destroy(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002470
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002471 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002472 p = p->next;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002473 HA_SPIN_DESTROY(&p0->lbprm.lock);
2474 HA_SPIN_DESTROY(&p0->lock);
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002475 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002476 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02002477
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002478 while (ua) {
2479 uap = ua;
2480 ua = ua->next;
2481
Willy Tarreaua534fea2008-08-03 12:19:50 +02002482 free(uap->uri_prefix);
2483 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002484 free(uap->node);
2485 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002486
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002487 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01002488 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002489
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002490 free(uap);
2491 }
2492
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002493 userlist_free(userlist);
2494
David Carlier834cb2e2015-09-25 12:02:25 +01002495 cfg_unregister_sections();
2496
Christopher Faulet0132d062017-07-26 15:33:35 +02002497 deinit_log_buffers();
Christopher Faulet748919a2017-07-26 14:59:46 +02002498 deinit_trash_buffers();
David Carlier834cb2e2015-09-25 12:02:25 +01002499
Willy Tarreaudd815982007-10-16 12:25:14 +02002500 protocol_unbind_all();
2501
Willy Tarreau05554e62016-12-21 20:46:26 +01002502 list_for_each_entry(pdf, &post_deinit_list, list)
2503 pdf->fct();
2504
Joe Williamsdf5b38f2010-12-29 17:05:48 +01002505 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02002506 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002507 free(global.chroot); global.chroot = NULL;
2508 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002509 free(global.node); global.node = NULL;
2510 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002511 free(oldpids); oldpids = NULL;
Willy Tarreau1f89b182017-11-22 16:53:53 +01002512 task_free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002513
William Lallemand0f99e342011-10-12 17:50:54 +02002514 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
2515 LIST_DEL(&log->list);
2516 free(log);
2517 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01002518 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02002519 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01002520 LIST_DEL(&wl->list);
2521 free(wl);
2522 }
2523
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002524 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
2525 if (bol->must_free)
2526 free((void *)bol->str);
2527 LIST_DEL(&bol->list);
2528 free(bol);
2529 }
2530
Christopher Fauletff2613e2016-11-09 11:36:17 +01002531 vars_prune(&global.vars, NULL, NULL);
2532
Christopher Fauletad405f12017-08-29 15:30:11 +02002533 deinit_buffer();
2534
Willy Tarreaubafbe012017-11-24 17:34:44 +01002535 pool_destroy(pool_head_stream);
2536 pool_destroy(pool_head_session);
2537 pool_destroy(pool_head_connection);
2538 pool_destroy(pool_head_connstream);
2539 pool_destroy(pool_head_requri);
2540 pool_destroy(pool_head_task);
2541 pool_destroy(pool_head_capture);
2542 pool_destroy(pool_head_pendconn);
2543 pool_destroy(pool_head_sig_handlers);
2544 pool_destroy(pool_head_hdr_idx);
2545 pool_destroy(pool_head_http_txn);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002546 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002547} /* end deinit() */
2548
William Lallemand72160322018-11-06 17:37:16 +01002549
2550
2551/* This is a wrapper for the sockpair FD, It tests if the socket received an
2552 * EOF, if not, it calls listener_accept */
2553void mworker_accept_wrapper(int fd)
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002554{
2555 char c;
William Lallemand72160322018-11-06 17:37:16 +01002556 int ret;
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002557
William Lallemand72160322018-11-06 17:37:16 +01002558 while (1) {
2559 ret = recv(fd, &c, 1, MSG_PEEK);
2560 if (ret == -1) {
2561 if (errno == EINTR)
2562 continue;
2563 if (errno == EAGAIN) {
2564 fd_cant_recv(fd);
2565 return;
2566 }
2567 break;
2568 } else if (ret > 0) {
2569 listener_accept(fd);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002570 return;
William Lallemand72160322018-11-06 17:37:16 +01002571 } else if (ret == 0) {
2572 /* At this step the master is down before
2573 * this worker perform a 'normal' exit.
2574 * So we want to exit with an error but
2575 * other threads could currently process
2576 * some stuff so we can't perform a clean
2577 * deinit().
2578 */
2579 exit(EXIT_FAILURE);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002580 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002581 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002582 return;
2583}
2584
William Lallemand72160322018-11-06 17:37:16 +01002585/*
William Lallemand72160322018-11-06 17:37:16 +01002586 * This function register the accept wrapper for the sockpair of the master worker
2587 */
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002588void mworker_pipe_register()
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002589{
William Lallemand72160322018-11-06 17:37:16 +01002590 /* The iocb should be already initialized with listener_accept */
William Lallemanda90cacf2018-11-07 08:38:32 +01002591 if (fdtab[proc_self->ipc_fd[1]].iocb == mworker_accept_wrapper)
2592 return;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002593
William Lallemandbc193052018-09-11 10:06:26 +02002594 fcntl(proc_self->ipc_fd[1], F_SETFL, O_NONBLOCK);
Emeric Brunc8c0ed92018-10-11 15:27:07 +02002595 /* In multi-tread, we need only one thread to process
2596 * events on the pipe with master
2597 */
William Lallemande260e0d2018-11-08 12:00:14 +01002598 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 +02002599 fd_want_recv(proc_self->ipc_fd[1]);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002600}
Christopher Fauletdc628a32017-10-19 11:59:44 +02002601
Willy Tarreau918ff602011-07-25 16:33:49 +02002602/* Runs the polling loop */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01002603static void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02002604{
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002605 int next, exp;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002606
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002607 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002608 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002609 /* Process a few tasks */
2610 process_runnable_tasks();
2611
William Lallemand1aab50b2018-06-07 09:46:01 +02002612 /* check if we caught some signals and process them in the
2613 first thread */
2614 if (tid == 0)
2615 signal_process_queue();
Willy Tarreau29857942009-05-10 09:01:21 +02002616
Willy Tarreau58b458d2008-06-29 22:40:23 +02002617 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002618 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002619
Willy Tarreau85c459d2018-08-02 10:54:31 +02002620 /* stop when there's nothing left to do */
William Lallemanda7199262018-11-16 16:57:20 +01002621 if ((jobs - unstoppable_jobs) == 0)
Willy Tarreau85c459d2018-08-02 10:54:31 +02002622 break;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002623
Willy Tarreau10146c92015-04-13 20:44:19 +02002624 /* expire immediately if events are pending */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002625 exp = now_ms;
Christopher Faulet32467fe2018-01-15 12:16:34 +01002626 if (fd_cache_mask & tid_bit)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002627 activity[tid].wake_cache++;
2628 else if (active_tasks_mask & tid_bit)
2629 activity[tid].wake_tasks++;
William Lallemand1aab50b2018-06-07 09:46:01 +02002630 else if (signal_queue_len && tid == 0)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002631 activity[tid].wake_signal++;
Olivier Houchard79321b92018-07-26 17:55:11 +02002632 else {
2633 HA_ATOMIC_OR(&sleeping_thread_mask, tid_bit);
2634 __ha_barrier_store();
2635 if (active_tasks_mask & tid_bit) {
2636 activity[tid].wake_tasks++;
2637 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
2638 } else
2639 exp = next;
2640 }
Willy Tarreau10146c92015-04-13 20:44:19 +02002641
Willy Tarreau58b458d2008-06-29 22:40:23 +02002642 /* The poller will ensure it returns around <next> */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002643 cur_poller.poll(&cur_poller, exp);
Olivier Houchard79321b92018-07-26 17:55:11 +02002644 if (sleeping_thread_mask & tid_bit)
2645 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01002646 fd_process_cached_events();
Emeric Brun64cc49c2017-10-03 14:46:45 +02002647
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002648 activity[tid].loops++;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002649 }
2650}
2651
Christopher Faulet1d17c102017-08-29 15:38:48 +02002652static void *run_thread_poll_loop(void *data)
2653{
2654 struct per_thread_init_fct *ptif;
2655 struct per_thread_deinit_fct *ptdf;
Christopher Fauletda18b9d2018-01-25 16:10:16 +01002656 __decl_hathreads(static HA_SPINLOCK_T start_lock);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002657
Willy Tarreau0c026f42018-08-01 19:12:20 +02002658 ha_set_tid(*((unsigned int *)data));
Christopher Faulet1d17c102017-08-29 15:38:48 +02002659 tv_update_date(-1,-1);
2660
2661 list_for_each_entry(ptif, &per_thread_init_list, list) {
2662 if (!ptif->fct()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002663 ha_alert("failed to initialize thread %u.\n", tid);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002664 exit(1);
2665 }
2666 }
2667
William Lallemandbc193052018-09-11 10:06:26 +02002668 if ((global.mode & MODE_MWORKER) && master == 0) {
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002669 HA_SPIN_LOCK(START_LOCK, &start_lock);
2670 mworker_pipe_register();
2671 HA_SPIN_UNLOCK(START_LOCK, &start_lock);
2672 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002673
2674 protocol_enable_all();
Christopher Faulet1d17c102017-08-29 15:38:48 +02002675 run_poll_loop();
2676
2677 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
2678 ptdf->fct();
2679
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002680#ifdef USE_THREAD
William Lallemand091d8272018-06-24 09:37:03 +02002681 HA_ATOMIC_AND(&all_threads_mask, ~tid_bit);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002682 if (tid > 0)
2683 pthread_exit(NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002684#endif
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002685 return NULL;
2686}
Christopher Faulet1d17c102017-08-29 15:38:48 +02002687
Willy Tarreaue9b26022011-08-01 20:57:55 +02002688/* This is the global management task for listeners. It enables listeners waiting
2689 * for global resources when there are enough free resource, or at least once in
2690 * a while. It is designed to be called as a task.
2691 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02002692static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state)
Willy Tarreaue9b26022011-08-01 20:57:55 +02002693{
2694 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02002695 /* queue is empty, nothing to do */
2696 if (LIST_ISEMPTY(&global_listener_queue))
2697 goto out;
2698
2699 /* If there are still too many concurrent connections, let's wait for
2700 * some of them to go away. We don't need to re-arm the timer because
2701 * each of them will scan the queue anyway.
2702 */
2703 if (unlikely(actconn >= global.maxconn))
2704 goto out;
2705
2706 /* We should periodically try to enable listeners waiting for a global
2707 * resource here, because it is possible, though very unlikely, that
2708 * they have been blocked by a temporary lack of global resource such
2709 * as a file descriptor or memory and that the temporary condition has
2710 * disappeared.
2711 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002712 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02002713
2714 out:
2715 t->expire = next;
2716 task_queue(t);
2717 return t;
2718}
Willy Tarreau4f60f162007-04-08 16:39:58 +02002719
Willy Tarreaubaaee002006-06-26 02:48:02 +02002720int main(int argc, char **argv)
2721{
2722 int err, retry;
2723 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02002724 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02002725 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002726
Olivier Houchard5fa300d2018-02-03 15:15:21 +01002727 setvbuf(stdout, NULL, _IONBF, 0);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002728 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002729 signal_register_fct(SIGQUIT, dump, SIGQUIT);
2730 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
2731 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
William Lallemand73b85e72017-06-01 17:38:51 +02002732 signal_register_fct(SIGUSR2, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002733
Willy Tarreaue437c442010-03-17 18:02:46 +01002734 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
2735 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
2736 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002737 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002738 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002739
Willy Tarreaudc23a922011-02-16 11:10:36 +01002740 /* ulimits */
2741 if (!global.rlimit_nofile)
2742 global.rlimit_nofile = global.maxsock;
2743
2744 if (global.rlimit_nofile) {
2745 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
2746 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02002747 /* try to set it to the max possible at least */
2748 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02002749 limit.rlim_cur = limit.rlim_max;
2750 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
2751 getrlimit(RLIMIT_NOFILE, &limit);
2752
Christopher Faulet767a84b2017-11-24 16:50:31 +01002753 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 +02002754 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002755 }
2756 }
2757
2758 if (global.rlimit_memmax) {
2759 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01002760 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002761#ifdef RLIMIT_AS
2762 if (setrlimit(RLIMIT_AS, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002763 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2764 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002765 }
2766#else
2767 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002768 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2769 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002770 }
2771#endif
2772 }
2773
Olivier Houchardf73629d2017-04-05 22:33:04 +02002774 if (old_unixsocket) {
William Lallemand85b0bd92017-06-01 17:38:53 +02002775 if (strcmp("/dev/null", old_unixsocket) != 0) {
2776 if (get_old_sockets(old_unixsocket) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002777 ha_alert("Failed to get the sockets from the old process!\n");
William Lallemand85b0bd92017-06-01 17:38:53 +02002778 if (!(global.mode & MODE_MWORKER))
2779 exit(1);
2780 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002781 }
2782 }
William Lallemand85b0bd92017-06-01 17:38:53 +02002783 get_cur_unixsocket();
2784
Willy Tarreaubaaee002006-06-26 02:48:02 +02002785 /* We will loop at most 100 times with 10 ms delay each time.
2786 * That's at most 1 second. We only send a signal to old pids
2787 * if we cannot grab at least one port.
2788 */
2789 retry = MAX_START_RETRIES;
2790 err = ERR_NONE;
2791 while (retry >= 0) {
2792 struct timeval w;
2793 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01002794 /* exit the loop on no error or fatal error */
2795 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002796 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02002797 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002798 break;
2799
2800 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
2801 * listening sockets. So on those platforms, it would be wiser to
2802 * simply send SIGUSR1, which will not be undoable.
2803 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02002804 if (tell_old_pids(SIGTTOU) == 0) {
2805 /* no need to wait if we can't contact old pids */
2806 retry = 0;
2807 continue;
2808 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002809 /* give some time to old processes to stop listening */
2810 w.tv_sec = 0;
2811 w.tv_usec = 10*1000;
2812 select(0, NULL, NULL, NULL, &w);
2813 retry--;
2814 }
2815
2816 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01002817 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02002818 if (retry != MAX_START_RETRIES && nb_oldpids) {
2819 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002820 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02002821 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002822 exit(1);
2823 }
2824
2825 if (listeners == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002826 ha_alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002827 /* Note: we don't have to send anything to the old pids because we
2828 * never stopped them. */
2829 exit(1);
2830 }
2831
Emeric Bruncf20bf12010-10-22 16:06:11 +02002832 err = protocol_bind_all(errmsg, sizeof(errmsg));
2833 if ((err & ~ERR_WARN) != ERR_NONE) {
2834 if ((err & ERR_ALERT) || (err & ERR_WARN))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002835 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002836
Christopher Faulet767a84b2017-11-24 16:50:31 +01002837 ha_alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002838 protocol_unbind_all(); /* cleanup everything we can */
2839 if (nb_oldpids)
2840 tell_old_pids(SIGTTIN);
2841 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002842 } else if (err & ERR_WARN) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002843 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02002844 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002845 /* Ok, all listener should now be bound, close any leftover sockets
2846 * the previous process gave us, we don't need them anymore
2847 */
2848 while (xfer_sock_list != NULL) {
2849 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
2850 close(xfer_sock_list->fd);
2851 free(xfer_sock_list->iface);
2852 free(xfer_sock_list->namespace);
2853 free(xfer_sock_list);
2854 xfer_sock_list = tmpxfer;
2855 }
Willy Tarreaudd815982007-10-16 12:25:14 +02002856
Willy Tarreaubaaee002006-06-26 02:48:02 +02002857 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002858 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
2859 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002860
Willy Tarreaubaaee002006-06-26 02:48:02 +02002861 /* MODE_QUIET can inhibit alerts and warnings below this line */
2862
PiBa-NL149a81a2017-12-25 21:03:31 +01002863 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL) {
2864 /* either stdin/out/err are already closed or should stay as they are. */
2865 if ((global.mode & MODE_DAEMON)) {
2866 /* daemon mode re-executing, stdin/stdout/stderr are already closed so keep quiet */
2867 global.mode &= ~MODE_VERBOSE;
2868 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2869 }
2870 } else {
2871 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
2872 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01002873 stdio_quiet(-1);
PiBa-NL149a81a2017-12-25 21:03:31 +01002874 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002875 }
2876
2877 /* open log & pid files before the chroot */
William Lallemand80293002017-11-06 11:00:03 +01002878 if ((global.mode & MODE_DAEMON || global.mode & MODE_MWORKER) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002879 unlink(global.pidfile);
2880 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
2881 if (pidfd < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002882 ha_alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002883 if (nb_oldpids)
2884 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02002885 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002886 exit(1);
2887 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002888 }
2889
Willy Tarreaub38651a2007-03-24 17:24:39 +01002890 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002891 ha_alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
2892 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002893 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01002894 exit(1);
2895 }
2896
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002897 /* If the user is not root, we'll still let him try the configuration
2898 * but we inform him that unexpected behaviour may occur.
2899 */
2900 if ((global.last_checks & LSTCHK_NETADM) && getuid())
Christopher Faulet767a84b2017-11-24 16:50:31 +01002901 ha_warning("[%s.main()] Some options which require full privileges"
2902 " might not work well.\n"
2903 "", argv[0]);
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002904
William Lallemand095ba4c2017-06-01 17:38:50 +02002905 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2906
2907 /* chroot if needed */
2908 if (global.chroot != NULL) {
2909 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002910 ha_alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02002911 if (nb_oldpids)
2912 tell_old_pids(SIGTTIN);
2913 protocol_unbind_all();
2914 exit(1);
2915 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002916 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002917 }
2918
Willy Tarreaubaaee002006-06-26 02:48:02 +02002919 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02002920 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002921
William Lallemand8a361b52017-06-20 11:20:33 +02002922 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
2923 nb_oldpids = 0;
2924 free(oldpids);
2925 oldpids = NULL;
2926 }
2927
2928
Willy Tarreaubaaee002006-06-26 02:48:02 +02002929 /* Note that any error at this stage will be fatal because we will not
2930 * be able to restart the old pids.
2931 */
2932
William Lallemand095ba4c2017-06-01 17:38:50 +02002933 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2934 /* setgid / setuid */
2935 if (global.gid) {
2936 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01002937 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2938 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002939
2940 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002941 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02002942 protocol_unbind_all();
2943 exit(1);
2944 }
2945 }
Michael Schererab012dd2013-01-12 18:35:19 +01002946
William Lallemand095ba4c2017-06-01 17:38:50 +02002947 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002948 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Michael Schererab012dd2013-01-12 18:35:19 +01002949 protocol_unbind_all();
2950 exit(1);
2951 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002952 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002953 /* check ulimits */
2954 limit.rlim_cur = limit.rlim_max = 0;
2955 getrlimit(RLIMIT_NOFILE, &limit);
2956 if (limit.rlim_cur < global.maxsock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002957 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",
2958 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002959 }
2960
William Lallemand095ba4c2017-06-01 17:38:50 +02002961 if (global.mode & (MODE_DAEMON | MODE_MWORKER)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002962 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002963 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002964 int ret = 0;
2965 int proc;
William Lallemande1340412017-12-28 16:09:36 +01002966 int devnullfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002967
William Lallemand73b85e72017-06-01 17:38:51 +02002968 children = calloc(global.nbproc, sizeof(int));
William Lallemand095ba4c2017-06-01 17:38:50 +02002969 /*
2970 * if daemon + mworker: must fork here to let a master
2971 * process live in background before forking children
2972 */
William Lallemand73b85e72017-06-01 17:38:51 +02002973
2974 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)
2975 && (global.mode & MODE_MWORKER)
2976 && (global.mode & MODE_DAEMON)) {
William Lallemand095ba4c2017-06-01 17:38:50 +02002977 ret = fork();
2978 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002979 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002980 protocol_unbind_all();
2981 exit(1); /* there has been an error */
William Lallemandbfd8eb52018-07-04 15:31:23 +02002982 } else if (ret > 0) { /* parent leave to daemonize */
William Lallemand095ba4c2017-06-01 17:38:50 +02002983 exit(0);
William Lallemandbfd8eb52018-07-04 15:31:23 +02002984 } else /* change the process group ID in the child (master process) */
2985 setsid();
William Lallemand095ba4c2017-06-01 17:38:50 +02002986 }
William Lallemande20b6a62017-06-01 17:38:55 +02002987
William Lallemande20b6a62017-06-01 17:38:55 +02002988
William Lallemanddeed7802017-11-06 11:00:04 +01002989 /* if in master-worker mode, write the PID of the father */
2990 if (global.mode & MODE_MWORKER) {
2991 char pidstr[100];
2992 snprintf(pidstr, sizeof(pidstr), "%d\n", getpid());
Willy Tarreau46ec48b2018-01-23 19:20:19 +01002993 if (pidfd >= 0)
2994 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
William Lallemanddeed7802017-11-06 11:00:04 +01002995 }
2996
Willy Tarreaubaaee002006-06-26 02:48:02 +02002997 /* the father launches the required number of processes */
2998 for (proc = 0; proc < global.nbproc; proc++) {
2999 ret = fork();
3000 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003001 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02003002 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02003003 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003004 }
3005 else if (ret == 0) /* child breaks here */
3006 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01003007 children[proc] = ret;
William Lallemand92159b22017-11-06 11:16:12 +01003008 if (pidfd >= 0 && !(global.mode & MODE_MWORKER)) {
Willy Tarreau269ab312012-09-05 08:02:48 +02003009 char pidstr[100];
3010 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01003011 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02003012 }
William Lallemandbc193052018-09-11 10:06:26 +02003013 if (global.mode & MODE_MWORKER) {
William Lallemandce83b4a2018-10-26 14:47:30 +02003014 struct mworker_proc *child;
3015
William Lallemand5d05db82018-11-06 17:37:15 +01003016 qfprintf(stdout, "New worker #%d (%d) forked\n", relative_pid, ret);
William Lallemandce83b4a2018-10-26 14:47:30 +02003017 /* find the right mworker_proc */
3018 list_for_each_entry(child, &proc_list, list) {
3019 if (child->relative_pid == relative_pid &&
3020 child->reloads == 0) {
3021 child->pid = ret;
3022 break;
3023 }
3024 }
William Lallemandbc193052018-09-11 10:06:26 +02003025 }
3026
Willy Tarreaudcd47712007-11-04 23:35:08 +01003027 relative_pid++; /* each child will get a different one */
Willy Tarreau387bd4f2017-11-10 19:08:14 +01003028 pid_bit <<= 1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003029 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003030
3031#ifdef USE_CPU_AFFINITY
3032 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02003033 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003034 global.cpu_map.proc[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003035#ifdef __FreeBSD__
Olivier Houchard97148f62017-08-16 17:29:11 +02003036 {
3037 cpuset_t cpuset;
3038 int i;
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003039 unsigned long cpu_map = global.cpu_map.proc[proc];
Olivier Houchard97148f62017-08-16 17:29:11 +02003040
3041 CPU_ZERO(&cpuset);
3042 while ((i = ffsl(cpu_map)) > 0) {
3043 CPU_SET(i - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003044 cpu_map &= ~(1UL << (i - 1));
Olivier Houchard97148f62017-08-16 17:29:11 +02003045 }
3046 ret = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset), &cpuset);
3047 }
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003048#else
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003049 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map.proc[proc]);
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003050#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003051#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02003052 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02003053 if (pidfd >= 0) {
3054 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
3055 close(pidfd);
3056 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02003057
3058 /* We won't ever use this anymore */
Willy Tarreaud137dd32010-08-25 12:49:05 +02003059 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003060
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003061 if (proc == global.nbproc) {
William Lallemand095ba4c2017-06-01 17:38:50 +02003062 if (global.mode & MODE_MWORKER) {
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003063
3064 if ((!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
3065 (global.mode & MODE_DAEMON)) {
3066 /* detach from the tty, this is required to properly daemonize. */
William Lallemande1340412017-12-28 16:09:36 +01003067 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL))
3068 stdio_quiet(-1);
3069
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003070 global.mode &= ~MODE_VERBOSE;
3071 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003072 }
3073
William Lallemandb3f2be32018-09-11 10:06:18 +02003074 mworker_loop();
William Lallemand1499b9b2017-06-07 15:04:47 +02003075 /* should never get there */
3076 exit(EXIT_FAILURE);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003077 }
William Lallemandcf4e4962017-06-08 19:05:48 +02003078#if defined(USE_OPENSSL) && !defined(OPENSSL_NO_DH)
Grant Zhang872f9c22017-01-21 01:10:18 +00003079 ssl_free_dh();
3080#endif
William Lallemand1499b9b2017-06-07 15:04:47 +02003081 exit(0); /* parent must leave */
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003082 }
3083
William Lallemandcb11fd22017-06-01 17:38:52 +02003084 /* child must never use the atexit function */
3085 atexit_flag = 0;
3086
William Lallemandbc193052018-09-11 10:06:26 +02003087 /* close useless master sockets */
3088 if (global.mode & MODE_MWORKER) {
3089 struct mworker_proc *child, *it;
3090 master = 0;
3091
William Lallemand309dc9a2018-10-26 14:47:45 +02003092 mworker_cli_proxy_stop();
3093
William Lallemandbc193052018-09-11 10:06:26 +02003094 /* free proc struct of other processes */
3095 list_for_each_entry_safe(child, it, &proc_list, list) {
William Lallemandce83b4a2018-10-26 14:47:30 +02003096 /* close the FD of the master side for all
3097 * workers, we don't need to close the worker
3098 * side of other workers since it's done with
3099 * the bind_proc */
3100 close(child->ipc_fd[0]);
3101 if (child->relative_pid == relative_pid &&
3102 child->reloads == 0) {
3103 /* keep this struct if this is our pid */
3104 proc_self = child;
William Lallemandbc193052018-09-11 10:06:26 +02003105 continue;
William Lallemandce83b4a2018-10-26 14:47:30 +02003106 }
William Lallemandbc193052018-09-11 10:06:26 +02003107 LIST_DEL(&child->list);
3108 free(child);
3109 }
3110 }
Willy Tarreau1605c7a2018-01-23 19:01:49 +01003111
William Lallemande1340412017-12-28 16:09:36 +01003112 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
3113 devnullfd = open("/dev/null", O_RDWR, 0);
3114 if (devnullfd < 0) {
3115 ha_alert("Cannot open /dev/null\n");
3116 exit(EXIT_FAILURE);
3117 }
3118 }
3119
William Lallemand095ba4c2017-06-01 17:38:50 +02003120 /* Must chroot and setgid/setuid in the children */
3121 /* chroot if needed */
3122 if (global.chroot != NULL) {
3123 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003124 ha_alert("[%s.main()] Cannot chroot1(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02003125 if (nb_oldpids)
3126 tell_old_pids(SIGTTIN);
3127 protocol_unbind_all();
3128 exit(1);
3129 }
3130 }
3131
3132 free(global.chroot);
3133 global.chroot = NULL;
3134
3135 /* setgid / setuid */
3136 if (global.gid) {
3137 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01003138 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
3139 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02003140
3141 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003142 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003143 protocol_unbind_all();
3144 exit(1);
3145 }
3146 }
3147
3148 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003149 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003150 protocol_unbind_all();
3151 exit(1);
3152 }
3153
William Lallemand7f80eb22017-05-26 18:19:55 +02003154 /* pass through every cli socket, and check if it's bound to
3155 * the current process and if it exposes listeners sockets.
3156 * Caution: the GTUNE_SOCKET_TRANSFER is now set after the fork.
3157 * */
3158
3159 if (global.stats_fe) {
3160 struct bind_conf *bind_conf;
3161
3162 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
3163 if (bind_conf->level & ACCESS_FD_LISTENERS) {
3164 if (!bind_conf->bind_proc || bind_conf->bind_proc & (1UL << proc)) {
3165 global.tune.options |= GTUNE_SOCKET_TRANSFER;
3166 break;
3167 }
3168 }
3169 }
3170 }
3171
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003172 /* we might have to unbind some proxies from some processes */
Olivier Houchardfbc74e82017-11-24 16:54:05 +01003173 px = proxies_list;
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003174 while (px != NULL) {
3175 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02003176 if (!(px->bind_proc & (1UL << proc))) {
3177 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
3178 zombify_proxy(px);
3179 else
3180 stop_proxy(px);
3181 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003182 }
3183 px = px->next;
3184 }
3185
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003186 /* we might have to unbind some peers sections from some processes */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02003187 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003188 if (!curpeers->peers_fe)
3189 continue;
3190
3191 if (curpeers->peers_fe->bind_proc & (1UL << proc))
3192 continue;
3193
3194 stop_proxy(curpeers->peers_fe);
3195 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02003196 signal_unregister_handler(curpeers->sighandler);
3197 task_delete(curpeers->sync_task);
3198 task_free(curpeers->sync_task);
3199 curpeers->sync_task = NULL;
3200 task_free(curpeers->peers_fe->task);
3201 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003202 curpeers->peers_fe = NULL;
3203 }
3204
William Lallemand2e8fad92018-11-13 16:18:23 +01003205 /*
3206 * This is only done in daemon mode because we might want the
3207 * logs on stdout in mworker mode. If we're NOT in QUIET mode,
3208 * we should now close the 3 first FDs to ensure that we can
3209 * detach from the TTY. We MUST NOT do it in other cases since
3210 * it would have already be done, and 0-2 would have been
3211 * affected to listening sockets
Willy Tarreaubaaee002006-06-26 02:48:02 +02003212 */
William Lallemand2e8fad92018-11-13 16:18:23 +01003213 if ((global.mode & MODE_DAEMON) &&
3214 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02003215 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01003216 stdio_quiet(devnullfd);
Willy Tarreau106cb762008-11-16 07:40:34 +01003217 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003218 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
3219 }
3220 pid = getpid(); /* update child's pid */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003221 if (!(global.mode & MODE_MWORKER)) /* in mworker mode we don't want a new pgid for the children */
3222 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02003223 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02003224 }
3225
Christopher Faulete3a5e352017-10-24 13:53:54 +02003226 global.mode &= ~MODE_STARTING;
Willy Tarreau4f60f162007-04-08 16:39:58 +02003227 /*
3228 * That's it : the central polling loop. Run until we stop.
3229 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02003230#ifdef USE_THREAD
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003231 {
Christopher Faulet1d17c102017-08-29 15:38:48 +02003232 unsigned int *tids = calloc(global.nbthread, sizeof(unsigned int));
3233 pthread_t *threads = calloc(global.nbthread, sizeof(pthread_t));
3234 int i;
William Lallemand1aab50b2018-06-07 09:46:01 +02003235 sigset_t blocked_sig, old_sig;
Christopher Faulet1d17c102017-08-29 15:38:48 +02003236
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003237 /* Init tids array */
3238 for (i = 0; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003239 tids[i] = i;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003240
William Lallemand1aab50b2018-06-07 09:46:01 +02003241 /* ensure the signals will be blocked in every thread */
3242 sigfillset(&blocked_sig);
3243 sigdelset(&blocked_sig, SIGPROF);
3244 sigdelset(&blocked_sig, SIGBUS);
3245 sigdelset(&blocked_sig, SIGFPE);
3246 sigdelset(&blocked_sig, SIGILL);
3247 sigdelset(&blocked_sig, SIGSEGV);
3248 pthread_sigmask(SIG_SETMASK, &blocked_sig, &old_sig);
3249
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003250 /* Create nbthread-1 thread. The first thread is the current process */
3251 threads[0] = pthread_self();
3252 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003253 pthread_create(&threads[i], NULL, &run_thread_poll_loop, &tids[i]);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003254
Christopher Faulet62519022017-10-16 15:49:32 +02003255#ifdef USE_CPU_AFFINITY
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003256 /* Now the CPU affinity for all threads */
3257 for (i = 0; i < global.nbthread; i++) {
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003258 if (global.cpu_map.proc[relative_pid-1])
3259 global.cpu_map.thread[relative_pid-1][i] &= global.cpu_map.proc[relative_pid-1];
Christopher Faulet62519022017-10-16 15:49:32 +02003260
Willy Tarreau421f02e2018-01-20 18:19:22 +01003261 if (i < MAX_THREADS && /* only the first 32/64 threads may be pinned */
Olivier Houchard829aa242017-12-01 18:19:43 +01003262 global.cpu_map.thread[relative_pid-1][i]) {/* only do this if the thread has a THREAD map */
3263#if defined(__FreeBSD__) || defined(__NetBSD__)
3264 cpuset_t cpuset;
3265#else
3266 cpu_set_t cpuset;
3267#endif
3268 int j;
3269 unsigned long cpu_map = global.cpu_map.thread[relative_pid-1][i];
3270
3271 CPU_ZERO(&cpuset);
3272
3273 while ((j = ffsl(cpu_map)) > 0) {
3274 CPU_SET(j - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003275 cpu_map &= ~(1UL << (j - 1));
Olivier Houchard829aa242017-12-01 18:19:43 +01003276 }
Christopher Faulet62519022017-10-16 15:49:32 +02003277 pthread_setaffinity_np(threads[i],
Olivier Houchard829aa242017-12-01 18:19:43 +01003278 sizeof(cpuset), &cpuset);
3279 }
Christopher Faulet1d17c102017-08-29 15:38:48 +02003280 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003281#endif /* !USE_CPU_AFFINITY */
3282
William Lallemand1aab50b2018-06-07 09:46:01 +02003283 /* when multithreading we need to let only the thread 0 handle the signals */
William Lallemandd3801c12018-09-11 10:06:23 +02003284 haproxy_unblock_signals();
William Lallemand1aab50b2018-06-07 09:46:01 +02003285
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003286 /* Finally, start the poll loop for the first thread */
3287 run_thread_poll_loop(&tids[0]);
3288
3289 /* Wait the end of other threads */
3290 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003291 pthread_join(threads[i], NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003292
Christopher Faulet1d17c102017-08-29 15:38:48 +02003293 free(tids);
3294 free(threads);
3295
Christopher Fauletb79a94c2017-05-30 15:34:30 +02003296#if defined(DEBUG_THREAD) || defined(DEBUG_FULL)
3297 show_lock_stats();
3298#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003299 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003300#else /* ! USE_THREAD */
William Lallemandd3801c12018-09-11 10:06:23 +02003301 haproxy_unblock_signals();
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003302 run_thread_poll_loop((int []){0});
Christopher Faulet62519022017-10-16 15:49:32 +02003303
Christopher Faulet62519022017-10-16 15:49:32 +02003304#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003305
3306 /* Do some cleanup */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003307 deinit();
Christopher Faulet1d17c102017-08-29 15:38:48 +02003308
Willy Tarreaubaaee002006-06-26 02:48:02 +02003309 exit(0);
3310}
3311
3312
3313/*
3314 * Local variables:
3315 * c-indent-level: 8
3316 * c-basic-offset: 8
3317 * End:
3318 */