blob: 08ad7e5a2acf84641a211d76f0477678b16ee971 [file] [log] [blame]
Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau65e94d12018-08-02 18:12:50 +02003 * Copyright 2000-2018 Willy Tarreau <willy@haproxy.org>.
Willy Tarreaubaaee002006-06-26 02:48:02 +02004 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 *
Lukas Tribus23953682017-04-28 13:24:30 +000010 * Please refer to RFC7230 - RFC7235 informations about HTTP protocol, and
11 * RFC6265 for informations about cookies usage. More generally, the IETF HTTP
Willy Tarreaubaaee002006-06-26 02:48:02 +020012 * Working Group's web site should be consulted for protocol related changes :
13 *
14 * http://ftp.ics.uci.edu/pub/ietf/http/
15 *
16 * Pending bugs (may be not fixed because never reproduced) :
17 * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes
18 * the proxy to terminate (no core) if the client breaks the connection during
19 * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to
20 * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be
21 * related to missing setsid() (fixed in 1.1.15)
22 * - a proxy with an invalid config will prevent the startup even if disabled.
23 *
24 * ChangeLog has moved to the CHANGELOG file.
25 *
Willy Tarreaubaaee002006-06-26 02:48:02 +020026 */
27
David Carlier7ece0962015-12-08 21:43:09 +000028#define _GNU_SOURCE
Willy Tarreaubaaee002006-06-26 02:48:02 +020029#include <stdio.h>
30#include <stdlib.h>
31#include <unistd.h>
32#include <string.h>
33#include <ctype.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020034#include <dirent.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020035#include <sys/stat.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020036#include <sys/time.h>
37#include <sys/types.h>
38#include <sys/socket.h>
39#include <netinet/tcp.h>
40#include <netinet/in.h>
41#include <arpa/inet.h>
Olivier Houchardf73629d2017-04-05 22:33:04 +020042#include <net/if.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020043#include <netdb.h>
44#include <fcntl.h>
45#include <errno.h>
46#include <signal.h>
47#include <stdarg.h>
48#include <sys/resource.h>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010049#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020050#include <time.h>
51#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010052#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010053#ifdef USE_CPU_AFFINITY
Willy Tarreaufc6c0322012-11-16 16:12:27 +010054#include <sched.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000055#if defined(__FreeBSD__) || defined(__DragonFly__)
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020056#include <sys/param.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000057#ifdef __FreeBSD__
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020058#include <sys/cpuset.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000059#endif
David Carlier6d5c8412017-11-29 11:02:32 +000060#include <pthread_np.h>
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020061#endif
Willy Tarreaufc6c0322012-11-16 16:12:27 +010062#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020063
64#ifdef DEBUG_FULL
65#include <assert.h>
66#endif
Tim Duesterhusd6942c82017-11-20 15:58:35 +010067#if defined(USE_SYSTEMD)
68#include <systemd/sd-daemon.h>
69#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020070
Willy Tarreau2dd0d472006-06-29 17:53:05 +020071#include <common/base64.h>
72#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020073#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020074#include <common/compat.h>
75#include <common/config.h>
76#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010077#include <common/errors.h>
Willy Tarreau5794fb02018-11-25 18:43:29 +010078#include <common/initcall.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020079#include <common/memory.h>
80#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010081#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020082#include <common/regex.h>
83#include <common/standard.h>
84#include <common/time.h>
85#include <common/uri_auth.h>
86#include <common/version.h>
Christopher Fauletbe0faa22017-08-29 15:37:10 +020087#include <common/hathreads.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020088
89#include <types/capture.h>
William Lallemandce83b4a2018-10-26 14:47:30 +020090#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020091#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020092#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090093#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020094#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020095
Willy Tarreau0fc45a72007-06-17 00:36:03 +020096#include <proto/acl.h>
Willy Tarreau609aad92018-11-22 08:31:09 +010097#include <proto/activity.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020098#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020099#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200100#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200101#include <proto/channel.h>
William Lallemandce83b4a2018-10-26 14:47:30 +0200102#include <proto/cli.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200103#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200104#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200105#include <proto/filters.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +0200106#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100107#include <proto/hlua.h>
Willy Tarreau61c112a2018-10-02 16:43:32 +0200108#include <proto/http_rules.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200109#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200110#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100111#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200112#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +0100113#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200114#include <proto/proxy.h>
115#include <proto/queue.h>
116#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200117#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200118#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200119#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200120#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200121#include <proto/dns.h>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100122#include <proto/vars.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200123#ifdef USE_OPENSSL
Grant Zhang872f9c22017-01-21 01:10:18 +0000124#include <proto/ssl_sock.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200125#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200126
Willy Tarreau477ecd82010-01-03 21:12:30 +0100127/* list of config files */
128static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200129int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100130int relative_pid = 1; /* process id starting at 1 */
Willy Tarreau387bd4f2017-11-10 19:08:14 +0100131unsigned long pid_bit = 1; /* bit corresponding to the process id */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200132
Olivier Houchard79321b92018-07-26 17:55:11 +0200133volatile unsigned long sleeping_thread_mask; /* Threads that are about to sleep in poll() */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200134/* global options */
135struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100136 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100137 .nbproc = 1,
Christopher Fauletbe0faa22017-08-29 15:37:10 +0200138 .nbthread = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200139 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200140 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100141 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100142 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100143 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200144 .unix_bind = {
145 .ux = {
146 .uid = -1,
147 .gid = -1,
148 .mode = 0,
149 }
150 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200151 .tune = {
152 .bufsize = BUFSIZE,
Willy Tarreau27097842015-09-28 13:53:23 +0200153 .maxrewrite = -1,
Willy Tarreau43961d52010-10-04 20:39:20 +0200154 .chksize = BUFSIZE,
Willy Tarreaua24adf02014-11-27 01:11:56 +0100155 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200156 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200157#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100158 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200159#endif
William Lallemandf3747832012-11-09 12:33:10 +0100160 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100161#ifdef DEFAULT_IDLE_TIMER
162 .idle_timer = DEFAULT_IDLE_TIMER,
163#else
164 .idle_timer = 1000, /* 1 second */
165#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200166 },
Emeric Brun76d88952012-10-05 15:47:31 +0200167#ifdef USE_OPENSSL
168#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200169 .maxsslconn = DEFAULT_MAXSSLCONN,
170#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200171#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200172 /* others NULL OK */
173};
174
175/*********************************************************************/
176
177int stopping; /* non zero means stopping in progress */
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100178int killed; /* non zero means a hard-stop is triggered */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200179int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
William Lallemanda7199262018-11-16 16:57:20 +0100180int unstoppable_jobs = 0; /* number of active jobs that can't be stopped during a soft stop */
Willy Tarreau199ad242018-11-05 16:31:22 +0100181int active_peers = 0; /* number of active peers (connection attempts and connected) */
Willy Tarreau2d372c22018-11-05 17:12:27 +0100182int connected_peers = 0; /* number of connected peers (verified ones) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200183
184/* Here we store informations about the pids of the processes we may pause
185 * or kill. We will send them a signal every 10 ms until we can bind to all
186 * our ports. With 200 retries, that's about 2 seconds.
187 */
188#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200189static int *oldpids = NULL;
190static int oldpids_sig; /* use USR1 or TERM */
191
Olivier Houchardf73629d2017-04-05 22:33:04 +0200192/* Path to the unix socket we use to retrieve listener sockets from the old process */
193static const char *old_unixsocket;
194
William Lallemand85b0bd92017-06-01 17:38:53 +0200195static char *cur_unixsocket = NULL;
196
William Lallemandcb11fd22017-06-01 17:38:52 +0200197int atexit_flag = 0;
198
William Lallemand91723742018-11-06 17:37:14 +0100199static int exitcode = -1;
200
Willy Tarreaubb545b42010-08-25 12:58:59 +0200201int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200202const int zero = 0;
203const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200204const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200205
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100206char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200207char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200208
Willy Tarreau89efaed2013-12-13 15:14:55 +0100209/* used from everywhere just to drain results we don't want to read and which
210 * recent versions of gcc increasingly and annoyingly complain about.
211 */
212int shut_your_big_mouth_gcc_int = 0;
213
William Lallemand73b85e72017-06-01 17:38:51 +0200214int *children = NULL; /* store PIDs of children in master workers mode */
215
William Lallemand73b85e72017-06-01 17:38:51 +0200216static char **next_argv = NULL;
217
William Lallemandbc193052018-09-11 10:06:26 +0200218struct list proc_list = LIST_HEAD_INIT(proc_list);
219
220int master = 0; /* 1 if in master, 0 if in child */
221
William Lallemand16dd1b32018-11-19 18:46:18 +0100222struct mworker_proc *proc_self = NULL;
William Lallemandbc193052018-09-11 10:06:26 +0200223
Willy Tarreau08ceb102011-07-24 22:58:00 +0200224/* list of the temporarily limited listeners because of lack of resource */
225struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200226struct task *global_listener_queue_task;
Olivier Houchard9f6af332018-05-25 14:04:04 +0200227static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200228
William Lallemandb3f2be32018-09-11 10:06:18 +0200229static void *run_thread_poll_loop(void *data);
230
Willy Tarreauff055502014-04-28 22:27:06 +0200231/* bitfield of a few warnings to emit just once (WARN_*) */
232unsigned int warned = 0;
233
William Lallemande7361152018-10-26 14:47:36 +0200234/* master CLI configuration (-S flag) */
235struct list mworker_cli_conf = LIST_HEAD_INIT(mworker_cli_conf);
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100236
237/* These are strings to be reported in the output of "haproxy -vv". They may
238 * either be constants (in which case must_free must be zero) or dynamically
239 * allocated strings to pass to free() on exit, and in this case must_free
240 * must be non-zero.
241 */
242struct list build_opts_list = LIST_HEAD_INIT(build_opts_list);
243struct build_opts_str {
244 struct list list;
245 const char *str;
246 int must_free;
247};
248
Willy Tarreaue6945732016-12-21 19:57:00 +0100249/* These functions are called just after the point where the program exits
250 * after a config validity check, so they are generally suited for resource
251 * allocation and slow initializations that should be skipped during basic
252 * config checks. The functions must return 0 on success, or a combination
253 * of ERR_* flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause
254 * and immediate exit, so the function must have emitted any useful error.
255 */
256struct list post_check_list = LIST_HEAD_INIT(post_check_list);
257struct post_check_fct {
258 struct list list;
259 int (*fct)();
260};
261
Willy Tarreau05554e62016-12-21 20:46:26 +0100262/* These functions are called when freeing the global sections at the end
263 * of deinit, after everything is stopped. They don't return anything, and
264 * they work in best effort mode as their sole goal is to make valgrind
265 * mostly happy.
266 */
267struct list post_deinit_list = LIST_HEAD_INIT(post_deinit_list);
268struct post_deinit_fct {
269 struct list list;
270 void (*fct)();
271};
272
Christopher Faulet415f6112017-07-25 16:52:58 +0200273/* These functions are called for each thread just after the thread creation
274 * and before running the scheduler. They should be used to do per-thread
275 * initializations. They must return 0 if an error occurred. */
276struct list per_thread_init_list = LIST_HEAD_INIT(per_thread_init_list);
277struct per_thread_init_fct {
278 struct list list;
279 int (*fct)();
280};
281
282/* These functions are called for each thread just after the scheduler loop and
283 * before exiting the thread. They don't return anything and, as for post-deinit
284 * functions, they work in best effort mode as their sole goal is to make
285 * valgrind mostly happy. */
286struct list per_thread_deinit_list = LIST_HEAD_INIT(per_thread_deinit_list);
287struct per_thread_deinit_fct {
288 struct list list;
289 void (*fct)();
290};
291
Willy Tarreaubaaee002006-06-26 02:48:02 +0200292/*********************************************************************/
293/* general purpose functions ***************************************/
294/*********************************************************************/
295
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100296/* used to register some build option strings at boot. Set must_free to
297 * non-zero if the string must be freed upon exit.
298 */
299void hap_register_build_opts(const char *str, int must_free)
300{
301 struct build_opts_str *b;
302
303 b = calloc(1, sizeof(*b));
304 if (!b) {
305 fprintf(stderr, "out of memory\n");
306 exit(1);
307 }
308 b->str = str;
309 b->must_free = must_free;
310 LIST_ADDQ(&build_opts_list, &b->list);
311}
312
Willy Tarreaue6945732016-12-21 19:57:00 +0100313/* used to register some initialization functions to call after the checks. */
314void hap_register_post_check(int (*fct)())
315{
316 struct post_check_fct *b;
317
318 b = calloc(1, sizeof(*b));
319 if (!b) {
320 fprintf(stderr, "out of memory\n");
321 exit(1);
322 }
323 b->fct = fct;
324 LIST_ADDQ(&post_check_list, &b->list);
325}
326
Willy Tarreau05554e62016-12-21 20:46:26 +0100327/* used to register some de-initialization functions to call after everything
328 * has stopped.
329 */
330void hap_register_post_deinit(void (*fct)())
331{
332 struct post_deinit_fct *b;
333
334 b = calloc(1, sizeof(*b));
335 if (!b) {
336 fprintf(stderr, "out of memory\n");
337 exit(1);
338 }
339 b->fct = fct;
340 LIST_ADDQ(&post_deinit_list, &b->list);
341}
342
Christopher Faulet415f6112017-07-25 16:52:58 +0200343/* used to register some initialization functions to call for each thread. */
344void hap_register_per_thread_init(int (*fct)())
345{
346 struct per_thread_init_fct *b;
347
348 b = calloc(1, sizeof(*b));
349 if (!b) {
350 fprintf(stderr, "out of memory\n");
351 exit(1);
352 }
353 b->fct = fct;
354 LIST_ADDQ(&per_thread_init_list, &b->list);
355}
356
357/* used to register some de-initialization functions to call for each thread. */
358void hap_register_per_thread_deinit(void (*fct)())
359{
360 struct per_thread_deinit_fct *b;
361
362 b = calloc(1, sizeof(*b));
363 if (!b) {
364 fprintf(stderr, "out of memory\n");
365 exit(1);
366 }
367 b->fct = fct;
368 LIST_ADDQ(&per_thread_deinit_list, &b->list);
369}
370
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100371static void display_version()
Willy Tarreaubaaee002006-06-26 02:48:02 +0200372{
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) {
William Lallemand16dd1b32018-11-19 18:46:18 +0100543 memprintf(&msg, "%s|type=%c;fd=%d;pid=%d;rpid=%d;reloads=%d;timestamp=%d", msg ? msg : "", child->type, child->ipc_fd[0], child->pid, child->relative_pid, child->reloads, child->timestamp);
William Lallemandbc193052018-09-11 10:06:26 +0200544 }
545 if (msg)
William Lallemand16dd1b32018-11-19 18:46:18 +0100546 setenv("HAPROXY_PROCESSES", msg, 1);
William Lallemandbc193052018-09-11 10:06:26 +0200547}
548
549/*
550 * unserialize the proc list from the environment
551 */
552static void mworker_env_to_proc_list()
553{
554 char *msg, *token = NULL, *s1;
555
William Lallemand16dd1b32018-11-19 18:46:18 +0100556 msg = getenv("HAPROXY_PROCESSES");
William Lallemandbc193052018-09-11 10:06:26 +0200557 if (!msg)
558 return;
559
560 while ((token = strtok_r(msg, "|", &s1))) {
561 struct mworker_proc *child;
562 char *subtoken = NULL;
563 char *s2;
564
565 msg = NULL;
566
567 child = calloc(1, sizeof(*child));
568
569 while ((subtoken = strtok_r(token, ";", &s2))) {
570
571 token = NULL;
572
William Lallemand16dd1b32018-11-19 18:46:18 +0100573 if (strncmp(subtoken, "type=", 5) == 0) {
574 child->type = *(subtoken+5);
575 if (child->type == 'm') /* we are in the master, assign it */
576 proc_self = child;
577 } else if (strncmp(subtoken, "fd=", 3) == 0) {
William Lallemandbc193052018-09-11 10:06:26 +0200578 child->ipc_fd[0] = atoi(subtoken+3);
579 } else if (strncmp(subtoken, "pid=", 4) == 0) {
580 child->pid = atoi(subtoken+4);
581 } else if (strncmp(subtoken, "rpid=", 5) == 0) {
582 child->relative_pid = atoi(subtoken+5);
William Lallemandf1a62862018-10-26 14:47:29 +0200583 } else if (strncmp(subtoken, "reloads=", 8) == 0) {
584 /* we reloaded this process once more */
585 child->reloads = atoi(subtoken+8) + 1;
William Lallemande3683302018-11-19 18:46:17 +0100586 } else if (strncmp(subtoken, "timestamp=", 10) == 0) {
587 child->timestamp = atoi(subtoken+10);
William Lallemandbc193052018-09-11 10:06:26 +0200588 }
589 }
590 if (child->pid)
591 LIST_ADDQ(&proc_list, &child->list);
592 else
593 free(child);
594 }
595
William Lallemand16dd1b32018-11-19 18:46:18 +0100596 unsetenv("HAPROXY_PROCESSES");
William Lallemand73b85e72017-06-01 17:38:51 +0200597}
598
Willy Tarreaubaaee002006-06-26 02:48:02 +0200599/*
William Lallemand75ea0a02017-11-15 19:02:58 +0100600 * Upon a reload, the master worker needs to close all listeners FDs but the mworker_pipe
601 * fd, and the FD provided by fd@
602 */
603static void mworker_cleanlisteners()
604{
605 struct listener *l, *l_next;
606 struct proxy *curproxy;
Willy Tarreau473cf5d2017-12-05 11:14:12 +0100607 struct peers *curpeers;
William Lallemand75ea0a02017-11-15 19:02:58 +0100608
William Lallemand3da97692018-09-11 10:06:19 +0200609 /* we might have to unbind some peers sections from some processes */
610 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
611 if (!curpeers->peers_fe)
612 continue;
Willy Tarreau473cf5d2017-12-05 11:14:12 +0100613
William Lallemand3da97692018-09-11 10:06:19 +0200614 stop_proxy(curpeers->peers_fe);
615 /* disable this peer section so that it kills itself */
616 signal_unregister_handler(curpeers->sighandler);
617 task_delete(curpeers->sync_task);
618 task_free(curpeers->sync_task);
619 curpeers->sync_task = NULL;
620 task_free(curpeers->peers_fe->task);
621 curpeers->peers_fe->task = NULL;
622 curpeers->peers_fe = NULL;
623 }
William Lallemand75ea0a02017-11-15 19:02:58 +0100624
William Lallemand91c13b62018-09-11 10:06:20 +0200625 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
William Lallemand75ea0a02017-11-15 19:02:58 +0100626 list_for_each_entry_safe(l, l_next, &curproxy->conf.listeners, by_fe) {
William Lallemande22f11f2018-09-11 10:06:27 +0200627 /* remove the listener, but not those we need in the master... */
William Lallemanddd319a52018-10-12 10:39:54 +0200628 if (!(l->options & LI_O_MWORKER)) {
629 /* unbind the listener but does not close if
630 the FD is inherited with fd@ from the parent
631 process */
632 if (l->options & LI_O_INHERITED)
633 unbind_listener_no_close(l);
634 else
635 unbind_listener(l);
William Lallemande22f11f2018-09-11 10:06:27 +0200636 delete_listener(l);
William Lallemanddd319a52018-10-12 10:39:54 +0200637 }
William Lallemand75ea0a02017-11-15 19:02:58 +0100638 }
639 }
640}
641
642
643/*
William Lallemand73b85e72017-06-01 17:38:51 +0200644 * remove a pid forom the olpid array and decrease nb_oldpids
645 * return 1 pid was found otherwise return 0
646 */
647
648int delete_oldpid(int pid)
649{
650 int i;
651
652 for (i = 0; i < nb_oldpids; i++) {
653 if (oldpids[i] == pid) {
654 oldpids[i] = oldpids[nb_oldpids - 1];
655 oldpids[nb_oldpids - 1] = 0;
656 nb_oldpids--;
657 return 1;
658 }
659 }
660 return 0;
661}
662
William Lallemand85b0bd92017-06-01 17:38:53 +0200663
664static void get_cur_unixsocket()
665{
666 /* if -x was used, try to update the stat socket if not available anymore */
667 if (global.stats_fe) {
668 struct bind_conf *bind_conf;
669
670 /* pass through all stats socket */
671 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
672 struct listener *l;
673
674 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
675
676 if (l->addr.ss_family == AF_UNIX &&
677 (bind_conf->level & ACCESS_FD_LISTENERS)) {
678 const struct sockaddr_un *un;
679
680 un = (struct sockaddr_un *)&l->addr;
681 /* priority to old_unixsocket */
682 if (!cur_unixsocket) {
683 cur_unixsocket = strdup(un->sun_path);
684 } else {
685 if (old_unixsocket && !strcmp(un->sun_path, old_unixsocket)) {
686 free(cur_unixsocket);
687 cur_unixsocket = strdup(old_unixsocket);
688 return;
689 }
690 }
691 }
692 }
693 }
694 }
695 if (!cur_unixsocket && old_unixsocket)
696 cur_unixsocket = strdup(old_unixsocket);
697}
698
William Lallemand73b85e72017-06-01 17:38:51 +0200699/*
700 * When called, this function reexec haproxy with -sf followed by current
Joseph Herlant03420902018-11-15 10:41:50 -0800701 * children PIDs and possibly old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200702 */
703static void mworker_reload()
704{
705 int next_argc = 0;
706 int j;
707 char *msg = NULL;
William Lallemand7c756a82018-11-26 11:53:40 +0100708 struct per_thread_deinit_fct *ptdf;
William Lallemand73b85e72017-06-01 17:38:51 +0200709
710 mworker_block_signals();
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100711#if defined(USE_SYSTEMD)
712 if (global.tune.options & GTUNE_USE_SYSTEMD)
713 sd_notify(0, "RELOADING=1");
714#endif
William Lallemand73b85e72017-06-01 17:38:51 +0200715 setenv("HAPROXY_MWORKER_REEXEC", "1", 1);
716
William Lallemandbc193052018-09-11 10:06:26 +0200717 mworker_proc_list_to_env(); /* put the children description in the env */
718
William Lallemand7c756a82018-11-26 11:53:40 +0100719 /* during the reload we must ensure that every FDs that can't be
720 * reuse (ie those that are not referenced in the proc_list)
721 * are closed or they will leak. */
722
723 /* close the listeners FD */
724 mworker_cli_proxy_stop();
725 /* close the poller FD and the thread waker pipe FD */
726 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
727 ptdf->fct();
728 if (fdtab)
729 deinit_pollers();
730
William Lallemand73b85e72017-06-01 17:38:51 +0200731 /* compute length */
732 while (next_argv[next_argc])
733 next_argc++;
734
William Lallemand85b0bd92017-06-01 17:38:53 +0200735 /* 1 for haproxy -sf, 2 for -x /socket */
736 next_argv = realloc(next_argv, (next_argc + 1 + 2 + global.nbproc + nb_oldpids + 1) * sizeof(char *));
William Lallemand73b85e72017-06-01 17:38:51 +0200737 if (next_argv == NULL)
738 goto alloc_error;
739
740
741 /* add -sf <PID>* to argv */
742 if (children || nb_oldpids > 0)
743 next_argv[next_argc++] = "-sf";
744 if (children) {
745 for (j = 0; j < global.nbproc; next_argc++,j++) {
746 next_argv[next_argc] = memprintf(&msg, "%d", children[j]);
747 if (next_argv[next_argc] == NULL)
748 goto alloc_error;
749 msg = NULL;
750 }
751 }
752 /* copy old process PIDs */
753 for (j = 0; j < nb_oldpids; next_argc++,j++) {
754 next_argv[next_argc] = memprintf(&msg, "%d", oldpids[j]);
755 if (next_argv[next_argc] == NULL)
756 goto alloc_error;
757 msg = NULL;
758 }
759 next_argv[next_argc] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200760
William Lallemand2bf6d622017-06-20 11:20:23 +0200761 /* add the -x option with the stat socket */
William Lallemand85b0bd92017-06-01 17:38:53 +0200762 if (cur_unixsocket) {
763
William Lallemand2bf6d622017-06-20 11:20:23 +0200764 next_argv[next_argc++] = "-x";
765 next_argv[next_argc++] = (char *)cur_unixsocket;
766 next_argv[next_argc++] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200767 }
768
Christopher Faulet767a84b2017-11-24 16:50:31 +0100769 ha_warning("Reexecuting Master process\n");
Tim Duesterhus0436ab72017-11-12 17:39:18 +0100770 execvp(next_argv[0], next_argv);
William Lallemand73b85e72017-06-01 17:38:51 +0200771
Christopher Faulet767a84b2017-11-24 16:50:31 +0100772 ha_warning("Failed to reexecute the master process [%d]: %s\n", pid, strerror(errno));
William Lallemand722d4ca2017-11-15 19:02:55 +0100773 return;
774
William Lallemand73b85e72017-06-01 17:38:51 +0200775alloc_error:
Joseph Herlant07a08342018-11-15 10:43:05 -0800776 ha_warning("Failed to reexecute the master process [%d]: Cannot allocate memory\n", pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200777 return;
778}
779
William Lallemand73b85e72017-06-01 17:38:51 +0200780/*
William Lallemandb3f2be32018-09-11 10:06:18 +0200781 * When called, this function reexec haproxy with -sf followed by current
Joseph Herlant03420902018-11-15 10:41:50 -0800782 * children PIDs and possibly old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200783 */
William Lallemandb3f2be32018-09-11 10:06:18 +0200784static void mworker_catch_sighup(struct sig_handler *sh)
William Lallemand73b85e72017-06-01 17:38:51 +0200785{
William Lallemandb3f2be32018-09-11 10:06:18 +0200786 mworker_reload();
787}
William Lallemand73b85e72017-06-01 17:38:51 +0200788
William Lallemandb3f2be32018-09-11 10:06:18 +0200789static void mworker_catch_sigterm(struct sig_handler *sh)
790{
791 int sig = sh->arg;
William Lallemand2f8b31c2017-11-15 19:02:56 +0100792
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100793#if defined(USE_SYSTEMD)
William Lallemandb3f2be32018-09-11 10:06:18 +0200794 if (global.tune.options & GTUNE_USE_SYSTEMD) {
795 sd_notify(0, "STOPPING=1");
796 }
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100797#endif
William Lallemandb3f2be32018-09-11 10:06:18 +0200798 ha_warning("Exiting Master process...\n");
799 mworker_kill(sig);
800}
William Lallemand73b85e72017-06-01 17:38:51 +0200801
William Lallemandb3f2be32018-09-11 10:06:18 +0200802/*
803 * Wait for every children to exit
804 */
William Lallemand73b85e72017-06-01 17:38:51 +0200805
William Lallemandb3f2be32018-09-11 10:06:18 +0200806static void mworker_catch_sigchld(struct sig_handler *sh)
807{
808 int exitpid = -1;
809 int status = 0;
William Lallemandbc193052018-09-11 10:06:26 +0200810 struct mworker_proc *child, *it;
William Lallemand73b85e72017-06-01 17:38:51 +0200811
William Lallemandb3f2be32018-09-11 10:06:18 +0200812restart_wait:
William Lallemand73b85e72017-06-01 17:38:51 +0200813
William Lallemandb3f2be32018-09-11 10:06:18 +0200814 exitpid = waitpid(-1, &status, WNOHANG);
815 if (exitpid > 0) {
William Lallemand73b85e72017-06-01 17:38:51 +0200816 if (WIFEXITED(status))
817 status = WEXITSTATUS(status);
818 else if (WIFSIGNALED(status))
819 status = 128 + WTERMSIG(status);
820 else if (WIFSTOPPED(status))
821 status = 128 + WSTOPSIG(status);
822 else
823 status = 255;
824
William Lallemandbc193052018-09-11 10:06:26 +0200825 list_for_each_entry_safe(child, it, &proc_list, list) {
826 if (child->pid != exitpid)
827 continue;
828
829 LIST_DEL(&child->list);
830 close(child->ipc_fd[0]);
William Lallemandbc193052018-09-11 10:06:26 +0200831 break;
832 }
833
William Lallemand73b85e72017-06-01 17:38:51 +0200834 if (!children) {
William Lallemand18e52a82018-11-06 17:37:13 +0100835 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 +0200836 } else {
837 /* check if exited child was in the current children list */
838 if (current_child(exitpid)) {
William Lallemand18e52a82018-11-06 17:37:13 +0100839 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 +0200840 if (status != 0 && status != 130 && status != 143
William Lallemand4cfede82017-11-24 22:02:34 +0100841 && !(global.tune.options & GTUNE_NOEXIT_ONFAILURE)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100842 ha_alert("exit-on-failure: killing every workers with SIGTERM\n");
William Lallemand91723742018-11-06 17:37:14 +0100843 if (exitcode < 0)
844 exitcode = status;
William Lallemand69f9b3b2017-06-01 17:38:54 +0200845 mworker_kill(SIGTERM);
846 }
William Lallemand73b85e72017-06-01 17:38:51 +0200847 } else {
William Lallemand18e52a82018-11-06 17:37:13 +0100848 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 +0200849 delete_oldpid(exitpid);
850 }
851 }
William Lallemand18e52a82018-11-06 17:37:13 +0100852 free(child);
853
William Lallemandb3f2be32018-09-11 10:06:18 +0200854 /* do it again to check if it was the last worker */
855 goto restart_wait;
William Lallemand73b85e72017-06-01 17:38:51 +0200856 }
William Lallemandb3f2be32018-09-11 10:06:18 +0200857 /* Better rely on the system than on a list of process to check if it was the last one */
858 else if (exitpid == -1 && errno == ECHILD) {
William Lallemand18e52a82018-11-06 17:37:13 +0100859 ha_warning("All workers exited. Exiting... (%d)\n", (exitcode > 0) ? exitcode : status);
William Lallemandb3f2be32018-09-11 10:06:18 +0200860 atexit_flag = 0;
William Lallemand91723742018-11-06 17:37:14 +0100861 if (exitcode > 0)
862 exit(exitcode);
William Lallemandb3f2be32018-09-11 10:06:18 +0200863 exit(status); /* parent must leave using the latest status code known */
864 }
865
William Lallemand73b85e72017-06-01 17:38:51 +0200866}
867
William Lallemandb3f2be32018-09-11 10:06:18 +0200868static void mworker_loop()
869{
870
871#if defined(USE_SYSTEMD)
872 if (global.tune.options & GTUNE_USE_SYSTEMD)
873 sd_notifyf(0, "READY=1\nMAINPID=%lu", (unsigned long)getpid());
874#endif
875
William Lallemandbc193052018-09-11 10:06:26 +0200876 master = 1;
877
William Lallemand0564d412018-11-20 17:36:53 +0100878 signal_unregister(SIGUSR1);
879 signal_unregister(SIGHUP);
880 signal_unregister(SIGQUIT);
881
William Lallemandb3f2be32018-09-11 10:06:18 +0200882 signal_register_fct(SIGTERM, mworker_catch_sigterm, SIGTERM);
883 signal_register_fct(SIGUSR1, mworker_catch_sigterm, SIGUSR1);
884 signal_register_fct(SIGINT, mworker_catch_sigterm, SIGINT);
885 signal_register_fct(SIGHUP, mworker_catch_sighup, SIGHUP);
886 signal_register_fct(SIGUSR2, mworker_catch_sighup, SIGUSR2);
887 signal_register_fct(SIGCHLD, mworker_catch_sigchld, SIGCHLD);
888
889 mworker_unblock_signals();
890 mworker_cleanlisteners();
891
William Lallemandbc193052018-09-11 10:06:26 +0200892 mworker_catch_sigchld(NULL); /* ensure we clean the children in case
893 some SIGCHLD were lost */
894
William Lallemandb3f2be32018-09-11 10:06:18 +0200895 global.nbthread = 1;
896 relative_pid = 1;
897 pid_bit = 1;
898
899 jobs++; /* this is the "master" job, we want to take care of the
900 signals even if there is no listener so the poll loop don't
901 leave */
902
903 fork_poller();
904 run_thread_poll_loop((int []){0});
905}
William Lallemandcb11fd22017-06-01 17:38:52 +0200906
907/*
908 * Reexec the process in failure mode, instead of exiting
909 */
910void reexec_on_failure()
911{
912 if (!atexit_flag)
913 return;
914
915 setenv("HAPROXY_MWORKER_WAIT_ONLY", "1", 1);
916
Christopher Faulet767a84b2017-11-24 16:50:31 +0100917 ha_warning("Reexecuting Master process in waitpid mode\n");
William Lallemandcb11fd22017-06-01 17:38:52 +0200918 mworker_reload();
William Lallemandcb11fd22017-06-01 17:38:52 +0200919}
William Lallemand73b85e72017-06-01 17:38:51 +0200920
921
922/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200923 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
924 * a signal zero to all subscribers. This means that it's as easy as
925 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200926 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100927static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200928{
929 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200930 signal_unregister_handler(sh);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100931 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200932}
933
934/*
935 * upon SIGTTOU, we pause everything
936 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100937static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200938{
939 pause_proxies();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100940 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200941}
942
943/*
944 * upon SIGTTIN, let's have a soft stop.
945 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100946static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200947{
Willy Tarreaube58c382011-07-24 18:28:10 +0200948 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200949}
950
951/*
952 * this function dumps every server's state when the process receives SIGHUP.
953 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100954static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200955{
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100956 struct proxy *p = proxies_list;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200957
Christopher Faulet767a84b2017-11-24 16:50:31 +0100958 ha_warning("SIGHUP received, dumping servers states.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200959 while (p) {
960 struct server *s = p->srv;
961
962 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
963 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100964 chunk_printf(&trash,
965 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
966 p->id, s->id,
Emeric Brun52a91d32017-08-31 14:41:55 +0200967 (s->cur_state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100968 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200969 ha_warning("%s\n", trash.area);
970 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200971 s = s->next;
972 }
973
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200974 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
975 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100976 chunk_printf(&trash,
977 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
978 p->id,
979 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 +0200980 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100981 chunk_printf(&trash,
982 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
983 p->id,
984 (p->srv_bck) ? "is running on backup servers" : "has no server available",
985 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 +0200986 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100987 chunk_printf(&trash,
988 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
989 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
990 p->id, p->srv_act, p->srv_bck,
991 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 +0200992 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200993 ha_warning("%s\n", trash.area);
994 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200995
996 p = p->next;
997 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200998}
999
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001000static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001001{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001002 /* dump memory usage then free everything possible */
1003 dump_pools();
Willy Tarreaubafbe012017-11-24 17:34:44 +01001004 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001005}
1006
William Lallemande1340412017-12-28 16:09:36 +01001007/*
1008 * This function dup2 the stdio FDs (0,1,2) with <fd>, then closes <fd>
1009 * If <fd> < 0, it opens /dev/null and use it to dup
1010 *
1011 * In the case of chrooting, you have to open /dev/null before the chroot, and
1012 * pass the <fd> to this function
1013 */
1014static void stdio_quiet(int fd)
1015{
1016 if (fd < 0)
1017 fd = open("/dev/null", O_RDWR, 0);
1018
1019 if (fd > -1) {
1020 fclose(stdin);
1021 fclose(stdout);
1022 fclose(stderr);
1023
1024 dup2(fd, 0);
1025 dup2(fd, 1);
1026 dup2(fd, 2);
1027 if (fd > 2)
1028 close(fd);
1029 return;
1030 }
1031
1032 ha_alert("Cannot open /dev/null\n");
1033 exit(EXIT_FAILURE);
1034}
1035
1036
Joseph Herlant03420902018-11-15 10:41:50 -08001037/* This function checks if cfg_cfgfiles contains directories.
1038 * If it finds one, it adds all the files (and only files) it contains
1039 * in cfg_cfgfiles in place of the directory (and removes the directory).
1040 * It adds the files in lexical order.
1041 * It adds only files with .cfg extension.
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001042 * It doesn't add files with name starting with '.'
1043 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001044static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001045{
1046 struct wordlist *wl, *wlb;
1047 char *err = NULL;
1048
1049 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1050 struct stat file_stat;
1051 struct dirent **dir_entries = NULL;
1052 int dir_entries_nb;
1053 int dir_entries_it;
1054
1055 if (stat(wl->s, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001056 ha_alert("Cannot open configuration file/directory %s : %s\n",
1057 wl->s,
1058 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001059 exit(1);
1060 }
1061
1062 if (!S_ISDIR(file_stat.st_mode))
1063 continue;
1064
1065 /* from this point wl->s is a directory */
1066
1067 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
1068 if (dir_entries_nb < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001069 ha_alert("Cannot open configuration directory %s : %s\n",
1070 wl->s,
1071 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001072 exit(1);
1073 }
1074
1075 /* for each element in the directory wl->s */
1076 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
1077 struct dirent *dir_entry = dir_entries[dir_entries_it];
1078 char *filename = NULL;
1079 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
1080
1081 /* don't add filename that begin with .
Joseph Herlant03420902018-11-15 10:41:50 -08001082 * only add filename with .cfg extension
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001083 */
1084 if (dir_entry->d_name[0] == '.' ||
1085 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
1086 goto next_dir_entry;
1087
1088 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001089 ha_alert("Cannot load configuration files %s : out of memory.\n",
1090 filename);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001091 exit(1);
1092 }
1093
1094 if (stat(filename, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001095 ha_alert("Cannot open configuration file %s : %s\n",
1096 wl->s,
1097 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001098 exit(1);
1099 }
1100
1101 /* don't add anything else than regular file in cfg_cfgfiles
1102 * this way we avoid loops
1103 */
1104 if (!S_ISREG(file_stat.st_mode))
1105 goto next_dir_entry;
1106
1107 if (!list_append_word(&wl->list, filename, &err)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001108 ha_alert("Cannot load configuration files %s : %s\n",
1109 filename,
1110 err);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001111 exit(1);
1112 }
1113
1114next_dir_entry:
1115 free(filename);
1116 free(dir_entry);
1117 }
1118
1119 free(dir_entries);
1120
1121 /* remove the current directory (wl) from cfg_cfgfiles */
1122 free(wl->s);
1123 LIST_DEL(&wl->list);
1124 free(wl);
1125 }
1126
1127 free(err);
1128}
1129
Olivier Houchardf73629d2017-04-05 22:33:04 +02001130static int get_old_sockets(const char *unixsocket)
1131{
1132 char *cmsgbuf = NULL, *tmpbuf = NULL;
1133 int *tmpfd = NULL;
1134 struct sockaddr_un addr;
1135 struct cmsghdr *cmsg;
1136 struct msghdr msghdr;
1137 struct iovec iov;
1138 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +02001139 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +02001140 int sock = -1;
1141 int ret = -1;
1142 int ret2 = -1;
1143 int fd_nb;
1144 int got_fd = 0;
1145 int i = 0;
1146 size_t maxoff = 0, curoff = 0;
1147
1148 memset(&msghdr, 0, sizeof(msghdr));
1149 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
1150 if (!cmsgbuf) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001151 ha_warning("Failed to allocate memory to send sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001152 goto out;
1153 }
1154 sock = socket(PF_UNIX, SOCK_STREAM, 0);
1155 if (sock < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001156 ha_warning("Failed to connect to the old process socket '%s'\n",
1157 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001158 goto out;
1159 }
1160 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path));
1161 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
1162 addr.sun_family = PF_UNIX;
1163 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
1164 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001165 ha_warning("Failed to connect to the old process socket '%s'\n",
1166 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001167 goto out;
1168 }
Olivier Houchard54740872017-04-06 14:45:14 +02001169 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001170 iov.iov_base = &fd_nb;
1171 iov.iov_len = sizeof(fd_nb);
1172 msghdr.msg_iov = &iov;
1173 msghdr.msg_iovlen = 1;
1174 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
1175 /* First, get the number of file descriptors to be received */
1176 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001177 ha_warning("Failed to get the number of sockets to be transferred !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001178 goto out;
1179 }
1180 if (fd_nb == 0) {
1181 ret = 0;
1182 goto out;
1183 }
Olivier Houchardf143b802017-11-04 15:13:01 +01001184 tmpbuf = malloc(fd_nb * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int)));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001185 if (tmpbuf == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001186 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001187 goto out;
1188 }
1189 tmpfd = malloc(fd_nb * sizeof(int));
1190 if (tmpfd == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001191 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001192 goto out;
1193 }
1194 msghdr.msg_control = cmsgbuf;
1195 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
Olivier Houchardf143b802017-11-04 15:13:01 +01001196 iov.iov_len = MAX_SEND_FD * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001197 do {
1198 int ret3;
1199
1200 iov.iov_base = tmpbuf + curoff;
1201 ret = recvmsg(sock, &msghdr, 0);
1202 if (ret == -1 && errno == EINTR)
1203 continue;
1204 if (ret <= 0)
1205 break;
1206 /* Send an ack to let the sender know we got the sockets
1207 * and it can send some more
1208 */
1209 do {
1210 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
1211 } while (ret3 == -1 && errno == EINTR);
1212 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
1213 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
1214 if (cmsg->cmsg_level == SOL_SOCKET &&
1215 cmsg->cmsg_type == SCM_RIGHTS) {
1216 size_t totlen = cmsg->cmsg_len -
1217 CMSG_LEN(0);
1218 if (totlen / sizeof(int) + got_fd > fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001219 ha_warning("Got to many sockets !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001220 goto out;
1221 }
1222 /*
1223 * Be paranoid and use memcpy() to avoid any
1224 * potential alignement issue.
1225 */
1226 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
1227 got_fd += totlen / sizeof(int);
1228 }
1229 }
1230 curoff += ret;
1231 } while (got_fd < fd_nb);
1232
1233 if (got_fd != fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001234 ha_warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
1235 fd_nb, got_fd);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001236 goto out;
1237 }
1238 maxoff = curoff;
1239 curoff = 0;
1240 for (i = 0; i < got_fd; i++) {
1241 int fd = tmpfd[i];
1242 socklen_t socklen;
1243 int len;
1244
1245 xfer_sock = calloc(1, sizeof(*xfer_sock));
1246 if (!xfer_sock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001247 ha_warning("Failed to allocate memory in get_old_sockets() !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001248 break;
1249 }
1250 xfer_sock->fd = -1;
1251
1252 socklen = sizeof(xfer_sock->addr);
1253 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001254 ha_warning("Failed to get socket address\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001255 free(xfer_sock);
Olivier Houchardbe7b1ce2017-07-17 17:25:33 +02001256 xfer_sock = NULL;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001257 continue;
1258 }
1259 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001260 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001261 goto out;
1262 }
1263 len = tmpbuf[curoff++];
1264 if (len > 0) {
1265 /* We have a namespace */
1266 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001267 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001268 goto out;
1269 }
1270 xfer_sock->namespace = malloc(len + 1);
1271 if (!xfer_sock->namespace) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001272 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001273 goto out;
1274 }
1275 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
1276 xfer_sock->namespace[len] = 0;
1277 curoff += len;
1278 }
1279 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001280 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001281 goto out;
1282 }
1283 len = tmpbuf[curoff++];
1284 if (len > 0) {
1285 /* We have an interface */
1286 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001287 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001288 goto out;
1289 }
1290 xfer_sock->iface = malloc(len + 1);
1291 if (!xfer_sock->iface) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001292 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001293 goto out;
1294 }
1295 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
Olivier Houchard33e083c2018-03-15 17:48:49 +01001296 xfer_sock->iface[len] = 0;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001297 curoff += len;
1298 }
1299 if (curoff + sizeof(int) > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001300 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001301 goto out;
1302 }
1303 memcpy(&xfer_sock->options, &tmpbuf[curoff],
1304 sizeof(xfer_sock->options));
1305 curoff += sizeof(xfer_sock->options);
1306
1307 xfer_sock->fd = fd;
1308 if (xfer_sock_list)
1309 xfer_sock_list->prev = xfer_sock;
1310 xfer_sock->next = xfer_sock_list;
1311 xfer_sock->prev = NULL;
1312 xfer_sock_list = xfer_sock;
1313 xfer_sock = NULL;
1314 }
1315
1316 ret2 = 0;
1317out:
1318 /* If we failed midway make sure to close the remaining
1319 * file descriptors
1320 */
1321 if (tmpfd != NULL && i < got_fd) {
1322 for (; i < got_fd; i++) {
1323 close(tmpfd[i]);
1324 }
1325 }
1326 free(tmpbuf);
1327 free(tmpfd);
1328 free(cmsgbuf);
1329 if (sock != -1)
1330 close(sock);
1331 if (xfer_sock) {
1332 free(xfer_sock->namespace);
1333 free(xfer_sock->iface);
1334 if (xfer_sock->fd != -1)
1335 close(xfer_sock->fd);
1336 free(xfer_sock);
1337 }
1338 return (ret2);
1339}
1340
Willy Tarreaubaaee002006-06-26 02:48:02 +02001341/*
William Lallemand73b85e72017-06-01 17:38:51 +02001342 * copy and cleanup the current argv
1343 * Remove the -sf /-st parameters
1344 * Return an allocated copy of argv
1345 */
1346
1347static char **copy_argv(int argc, char **argv)
1348{
1349 char **newargv;
William Lallemand2bf6d622017-06-20 11:20:23 +02001350 int i = 0, j = 0;
William Lallemand73b85e72017-06-01 17:38:51 +02001351
1352 newargv = calloc(argc + 2, sizeof(char *));
1353 if (newargv == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001354 ha_warning("Cannot allocate memory\n");
William Lallemand73b85e72017-06-01 17:38:51 +02001355 return NULL;
1356 }
1357
William Lallemand2bf6d622017-06-20 11:20:23 +02001358 while (i < argc) {
1359 /* -sf or -st or -x */
William Lallemand29f690c2018-01-09 23:12:27 +01001360 if (i > 0 && argv[i][0] == '-' &&
1361 ((argv[i][1] == 's' && (argv[i][2] == 'f' || argv[i][2] == 't')) || argv[i][1] == 'x' )) {
William Lallemand2bf6d622017-06-20 11:20:23 +02001362 /* list of pids to finish ('f') or terminate ('t') or unix socket (-x) */
William Lallemand73b85e72017-06-01 17:38:51 +02001363 i++;
1364 while (i < argc && argv[i][0] != '-') {
1365 i++;
1366 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001367 continue;
William Lallemand73b85e72017-06-01 17:38:51 +02001368 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001369
1370 newargv[j++] = argv[i++];
William Lallemand73b85e72017-06-01 17:38:51 +02001371 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001372
William Lallemand73b85e72017-06-01 17:38:51 +02001373 return newargv;
1374}
1375
1376/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001377 * This function initializes all the necessary variables. It only returns
1378 * if everything is OK. If something fails, it exits.
1379 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001380static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001381{
Willy Tarreaubaaee002006-06-26 02:48:02 +02001382 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001383 char *tmp;
1384 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +02001385 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +02001386 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +01001387 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +00001388 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +02001389 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +02001390 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +01001391 struct post_check_fct *pcf;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001392
Christopher Faulete3a5e352017-10-24 13:53:54 +02001393 global.mode = MODE_STARTING;
William Lallemand73b85e72017-06-01 17:38:51 +02001394 next_argv = copy_argv(argc, argv);
1395
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001396 if (!init_trash_buffers(1)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001397 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet748919a2017-07-26 14:59:46 +02001398 exit(1);
1399 }
David du Colombier7af46052012-05-16 14:16:48 +02001400
Emeric Brun2b920a12010-09-23 18:30:22 +02001401 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
1402 * the string in case of truncation, and at least FreeBSD appears not to do
1403 * it.
1404 */
1405 memset(hostname, 0, sizeof(hostname));
1406 gethostname(hostname, sizeof(hostname) - 1);
1407 memset(localpeer, 0, sizeof(localpeer));
1408 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
William Lallemanddaf4cd22018-04-17 16:46:13 +02001409 setenv("HAPROXY_LOCALPEER", localpeer, 1);
Emeric Brun2b920a12010-09-23 18:30:22 +02001410
Willy Tarreaubaaee002006-06-26 02:48:02 +02001411 /*
1412 * Initialize the previously static variables.
1413 */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001414
Willy Tarreau173d9952018-01-26 21:48:23 +01001415 totalconn = actconn = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001416 killed = 0;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001417
Willy Tarreaubaaee002006-06-26 02:48:02 +02001418
1419#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +01001420 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001421#endif
1422
Benoit GARNIERb413c2a2016-03-27 11:08:03 +02001423 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001424 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001425 start_date = now;
1426
Willy Tarreau84310e22014-02-14 11:59:04 +01001427 srandom(now_ms - getpid());
1428
Willy Tarreau8ed669b2013-01-11 15:49:37 +01001429 if (init_acl() != 0)
1430 exit(1);
Willy Tarreaub6b3df32018-11-26 16:31:20 +01001431
Willy Tarreau8280d642009-09-23 23:37:52 +02001432 /* warning, we init buffers later */
Willy Tarreau04f1e2d2018-09-10 18:04:24 +02001433 if (!init_http(&err_msg)) {
1434 ha_alert("%s. Aborting.\n", err_msg);
1435 free(err_msg);
1436 abort();
1437 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001438
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001439 /* Initialise lua. */
1440 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001441
Christopher Fauletff2613e2016-11-09 11:36:17 +01001442 /* Initialize process vars */
1443 vars_init(&global.vars, SCOPE_PROC);
1444
Willy Tarreau43b78992009-01-25 15:42:27 +01001445 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001446#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001447 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001448#endif
1449#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001450 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001451#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001452#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +01001453 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001454#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001455#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001456 global.tune.options |= GTUNE_USE_SPLICE;
1457#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001458#if defined(USE_GETADDRINFO)
1459 global.tune.options |= GTUNE_USE_GAI;
1460#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001461#if defined(SO_REUSEPORT)
1462 global.tune.options |= GTUNE_USE_REUSEPORT;
1463#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001464
1465 pid = getpid();
1466 progname = *argv;
1467 while ((tmp = strchr(progname, '/')) != NULL)
1468 progname = tmp + 1;
1469
Kevinm48936af2010-12-22 16:08:21 +00001470 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +02001471 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +00001472
Willy Tarreaubaaee002006-06-26 02:48:02 +02001473 argc--; argv++;
1474 while (argc > 0) {
1475 char *flag;
1476
1477 if (**argv == '-') {
1478 flag = *argv+1;
1479
1480 /* 1 arg */
1481 if (*flag == 'v') {
1482 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +01001483 if (flag[1] == 'v') /* -vv */
1484 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001485 exit(0);
1486 }
1487#if defined(ENABLE_EPOLL)
1488 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +01001489 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001490#endif
1491#if defined(ENABLE_POLL)
1492 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +01001493 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001494#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +02001495#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001496 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +01001497 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001498#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001499#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001500 else if (*flag == 'd' && flag[1] == 'S')
1501 global.tune.options &= ~GTUNE_USE_SPLICE;
1502#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001503#if defined(USE_GETADDRINFO)
1504 else if (*flag == 'd' && flag[1] == 'G')
1505 global.tune.options &= ~GTUNE_USE_GAI;
1506#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001507#if defined(SO_REUSEPORT)
1508 else if (*flag == 'd' && flag[1] == 'R')
1509 global.tune.options &= ~GTUNE_USE_REUSEPORT;
1510#endif
Emeric Brun850efd52014-01-29 12:24:34 +01001511 else if (*flag == 'd' && flag[1] == 'V')
1512 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001513 else if (*flag == 'V')
1514 arg_mode |= MODE_VERBOSE;
1515 else if (*flag == 'd' && flag[1] == 'b')
1516 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +02001517 else if (*flag == 'd' && flag[1] == 'M')
1518 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +01001519 else if (*flag == 'd' && flag[1] == 'r')
1520 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001521 else if (*flag == 'd')
1522 arg_mode |= MODE_DEBUG;
1523 else if (*flag == 'c')
1524 arg_mode |= MODE_CHECK;
William Lallemand095ba4c2017-06-01 17:38:50 +02001525 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +02001526 arg_mode |= MODE_DAEMON;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001527 else if (*flag == 'W' && flag[1] == 's') {
Lukas Tribusf46bf952017-11-21 12:39:34 +01001528 arg_mode |= MODE_MWORKER | MODE_FOREGROUND;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001529#if defined(USE_SYSTEMD)
1530 global.tune.options |= GTUNE_USE_SYSTEMD;
1531#else
Christopher Faulet767a84b2017-11-24 16:50:31 +01001532 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 +01001533 usage(progname);
1534#endif
1535 }
William Lallemand095ba4c2017-06-01 17:38:50 +02001536 else if (*flag == 'W')
1537 arg_mode |= MODE_MWORKER;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001538 else if (*flag == 'q')
1539 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001540 else if (*flag == 'x') {
William Lallemand45eff442017-06-19 15:57:55 +02001541 if (argc <= 1 || argv[1][0] == '-') {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001542 ha_alert("Unix socket path expected with the -x flag\n\n");
William Lallemand45eff442017-06-19 15:57:55 +02001543 usage(progname);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001544 }
William Lallemand4fc09692017-06-19 16:37:19 +02001545 if (old_unixsocket)
Christopher Faulet767a84b2017-11-24 16:50:31 +01001546 ha_warning("-x option already set, overwriting the value\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001547 old_unixsocket = argv[1];
William Lallemand4fc09692017-06-19 16:37:19 +02001548
Olivier Houchardf73629d2017-04-05 22:33:04 +02001549 argv++;
1550 argc--;
1551 }
William Lallemande7361152018-10-26 14:47:36 +02001552 else if (*flag == 'S') {
1553 struct wordlist *c;
1554
1555 if (argc <= 1 || argv[1][0] == '-') {
1556 ha_alert("Socket and optional bind parameters expected with the -S flag\n");
1557 usage(progname);
1558 }
1559 if ((c = malloc(sizeof(*c))) == NULL || (c->s = strdup(argv[1])) == NULL) {
1560 ha_alert("Cannot allocate memory\n");
1561 exit(EXIT_FAILURE);
1562 }
1563 LIST_ADD(&mworker_cli_conf, &c->list);
1564
1565 argv++;
1566 argc--;
1567 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001568 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
1569 /* list of pids to finish ('f') or terminate ('t') */
1570
1571 if (flag[1] == 'f')
1572 oldpids_sig = SIGUSR1; /* finish then exit */
1573 else
1574 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001575 while (argc > 1 && argv[1][0] != '-') {
Chris Lane236062f2018-02-05 23:15:44 +00001576 char * endptr = NULL;
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001577 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
1578 if (!oldpids) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001579 ha_alert("Cannot allocate old pid : out of memory.\n");
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001580 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001581 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001582 argc--; argv++;
Chris Lane236062f2018-02-05 23:15:44 +00001583 errno = 0;
1584 oldpids[nb_oldpids] = strtol(*argv, &endptr, 10);
1585 if (errno) {
1586 ha_alert("-%2s option: failed to parse {%s}: %s\n",
1587 flag,
1588 *argv, strerror(errno));
1589 exit(1);
1590 } else if (endptr && strlen(endptr)) {
1591 while (isspace(*endptr)) endptr++;
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001592 if (*endptr != 0) {
Chris Lane236062f2018-02-05 23:15:44 +00001593 ha_alert("-%2s option: some bytes unconsumed in PID list {%s}\n",
1594 flag, endptr);
1595 exit(1);
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001596 }
Chris Lane236062f2018-02-05 23:15:44 +00001597 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001598 if (oldpids[nb_oldpids] <= 0)
1599 usage(progname);
1600 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001601 }
1602 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001603 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
1604 /* now that's a cfgfile list */
1605 argv++; argc--;
1606 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001607 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001608 ha_alert("Cannot load configuration file/directory %s : %s\n",
1609 *argv,
1610 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +02001611 exit(1);
1612 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001613 argv++; argc--;
1614 }
1615 break;
1616 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001617 else { /* >=2 args */
1618 argv++; argc--;
1619 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001620 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001621
1622 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +02001623 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001624 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +01001625 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001626 case 'N' : cfg_maxpconn = atol(*argv); break;
William Lallemanddaf4cd22018-04-17 16:46:13 +02001627 case 'L' :
1628 strncpy(localpeer, *argv, sizeof(localpeer) - 1);
1629 setenv("HAPROXY_LOCALPEER", localpeer, 1);
1630 break;
Willy Tarreau5d01a632009-06-22 16:02:30 +02001631 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +02001632 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001633 ha_alert("Cannot load configuration file/directory %s : %s\n",
1634 *argv,
1635 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +02001636 exit(1);
1637 }
Willy Tarreau5d01a632009-06-22 16:02:30 +02001638 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001639 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001640 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001641 }
1642 }
1643 }
1644 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001645 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001646 argv++; argc--;
1647 }
1648
Christopher Faulete3a5e352017-10-24 13:53:54 +02001649 global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
1650 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001651
William Lallemand944e6192018-11-21 15:48:31 +01001652 if (getenv("HAPROXY_MWORKER_WAIT_ONLY")) {
William Lallemandcb11fd22017-06-01 17:38:52 +02001653 unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
William Lallemand944e6192018-11-21 15:48:31 +01001654 global.mode |= MODE_MWORKER_WAIT;
1655 global.mode &= ~MODE_MWORKER;
William Lallemandcb11fd22017-06-01 17:38:52 +02001656 }
1657
1658 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") != NULL)) {
1659 atexit_flag = 1;
1660 atexit(reexec_on_failure);
1661 }
1662
Willy Tarreau576132e2011-09-10 19:26:56 +02001663 if (change_dir && chdir(change_dir) < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001664 ha_alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
Willy Tarreau576132e2011-09-10 19:26:56 +02001665 exit(1);
1666 }
1667
Willy Tarreaubaaee002006-06-26 02:48:02 +02001668 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001669
1670 init_default_instance();
1671
William Lallemand944e6192018-11-21 15:48:31 +01001672 /* in wait mode, we don't try to read the configuration files */
1673 if (!(global.mode & MODE_MWORKER_WAIT)) {
Willy Tarreauc4382422009-12-06 13:10:44 +01001674
William Lallemand944e6192018-11-21 15:48:31 +01001675 /* handle cfgfiles that are actually directories */
1676 cfgfiles_expand_directories();
1677
1678 if (LIST_ISEMPTY(&cfg_cfgfiles))
1679 usage(progname);
1680
1681
1682 list_for_each_entry(wl, &cfg_cfgfiles, list) {
1683 int ret;
1684
1685 ret = readcfgfile(wl->s);
1686 if (ret == -1) {
1687 ha_alert("Could not open configuration file %s : %s\n",
1688 wl->s, strerror(errno));
1689 exit(1);
1690 }
1691 if (ret & (ERR_ABORT|ERR_FATAL))
1692 ha_alert("Error(s) found in configuration file : %s\n", wl->s);
1693 err_code |= ret;
1694 if (err_code & ERR_ABORT)
1695 exit(1);
Willy Tarreauc4382422009-12-06 13:10:44 +01001696 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001697
William Lallemand944e6192018-11-21 15:48:31 +01001698 /* do not try to resolve arguments nor to spot inconsistencies when
1699 * the configuration contains fatal errors caused by files not found
1700 * or failed memory allocations.
1701 */
1702 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1703 ha_alert("Fatal errors found in configuration.\n");
1704 exit(1);
1705 }
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001706 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001707 if (global.mode & MODE_MWORKER) {
1708 int proc;
William Lallemand16dd1b32018-11-19 18:46:18 +01001709 struct mworker_proc *tmproc;
1710
1711 if (getenv("HAPROXY_MWORKER_REEXEC") == NULL) {
1712
1713 tmproc = malloc(sizeof(*tmproc));
1714 if (!tmproc) {
1715 ha_alert("Cannot allocate process structures.\n");
1716 exit(EXIT_FAILURE);
1717 }
1718 tmproc->type = 'm'; /* master */
1719 tmproc->reloads = 0;
1720 tmproc->relative_pid = 0;
1721 tmproc->pid = pid;
1722 tmproc->timestamp = start_date.tv_sec;
1723 tmproc->ipc_fd[0] = -1;
1724 tmproc->ipc_fd[1] = -1;
1725
1726 proc_self = tmproc;
1727
1728 LIST_ADDQ(&proc_list, &tmproc->list);
1729 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001730
1731 for (proc = 0; proc < global.nbproc; proc++) {
William Lallemandce83b4a2018-10-26 14:47:30 +02001732
1733 tmproc = malloc(sizeof(*tmproc));
1734 if (!tmproc) {
1735 ha_alert("Cannot allocate process structures.\n");
1736 exit(EXIT_FAILURE);
1737 }
1738
William Lallemand16dd1b32018-11-19 18:46:18 +01001739 tmproc->type = 'w'; /* worker */
William Lallemandce83b4a2018-10-26 14:47:30 +02001740 tmproc->pid = -1;
1741 tmproc->reloads = 0;
William Lallemande3683302018-11-19 18:46:17 +01001742 tmproc->timestamp = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001743 tmproc->relative_pid = 1 + proc;
William Lallemand550db6d2018-11-06 17:37:12 +01001744 tmproc->ipc_fd[0] = -1;
1745 tmproc->ipc_fd[1] = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001746
1747 if (mworker_cli_sockpair_new(tmproc, proc) < 0) {
1748 exit(EXIT_FAILURE);
1749 }
1750
1751 LIST_ADDQ(&proc_list, &tmproc->list);
1752 }
William Lallemand944e6192018-11-21 15:48:31 +01001753 }
1754 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
1755 struct wordlist *it, *c;
1756
William Lallemand1b663612018-10-26 14:47:33 +02001757 mworker_env_to_proc_list(); /* get the info of the children in the env */
William Lallemand8a022572018-10-26 14:47:35 +02001758
William Lallemande7361152018-10-26 14:47:36 +02001759
William Lallemand550db6d2018-11-06 17:37:12 +01001760 if (!LIST_ISEMPTY(&mworker_cli_conf)) {
William Lallemande7361152018-10-26 14:47:36 +02001761
William Lallemand550db6d2018-11-06 17:37:12 +01001762 if (mworker_cli_proxy_create() < 0) {
William Lallemande7361152018-10-26 14:47:36 +02001763 ha_alert("Can't create the master's CLI.\n");
1764 exit(EXIT_FAILURE);
1765 }
William Lallemande7361152018-10-26 14:47:36 +02001766
William Lallemand550db6d2018-11-06 17:37:12 +01001767 list_for_each_entry_safe(c, it, &mworker_cli_conf, list) {
1768
1769 if (mworker_cli_proxy_new_listener(c->s) < 0) {
1770 ha_alert("Can't create the master's CLI.\n");
1771 exit(EXIT_FAILURE);
1772 }
1773 LIST_DEL(&c->list);
1774 free(c->s);
1775 free(c);
1776 }
1777 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001778 }
1779
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +01001780 pattern_finalize_config();
1781
Willy Tarreaubb925012009-07-23 13:36:36 +02001782 err_code |= check_config_validity();
1783 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001784 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001785 exit(1);
1786 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001787
Willy Tarreau70060452015-12-14 12:46:07 +01001788 /* recompute the amount of per-process memory depending on nbproc and
1789 * the shared SSL cache size (allowed to exist in all processes).
1790 */
1791 if (global.rlimit_memmax_all) {
1792#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
1793 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
1794
1795 global.rlimit_memmax =
1796 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
1797 ssl_cache_bytes) / global.nbproc +
1798 ssl_cache_bytes + 1048575LL) / 1048576LL;
1799#else
1800 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
1801#endif
1802 }
1803
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001804#ifdef CONFIG_HAP_NS
1805 err_code |= netns_init();
1806 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001807 ha_alert("Failed to initialize namespace support.\n");
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001808 exit(1);
1809 }
1810#endif
1811
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001812 /* Apply server states */
1813 apply_server_state();
1814
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001815 for (px = proxies_list; px; px = px->next)
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001816 srv_compute_all_admin_states(px);
1817
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001818 /* Apply servers' configured address */
1819 err_code |= srv_init_addr();
1820 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001821 ha_alert("Failed to initialize server(s) addr.\n");
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001822 exit(1);
1823 }
1824
Willy Tarreaubaaee002006-06-26 02:48:02 +02001825 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001826 struct peers *pr;
1827 struct proxy *px;
1828
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001829 for (pr = cfg_peers; pr; pr = pr->next)
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001830 if (pr->peers_fe)
1831 break;
1832
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001833 for (px = proxies_list; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02001834 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001835 break;
1836
1837 if (pr || px) {
1838 /* At least one peer or one listener has been found */
1839 qfprintf(stdout, "Configuration file is valid\n");
1840 exit(0);
1841 }
1842 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
1843 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001844 }
1845
Emeric Brunc60def82017-09-27 14:59:38 +02001846 global_listener_queue_task = task_new(MAX_THREADS_MASK);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001847 if (!global_listener_queue_task) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001848 ha_alert("Out of memory when initializing global task\n");
Willy Tarreaue9b26022011-08-01 20:57:55 +02001849 exit(1);
1850 }
1851 /* very simple initialization, users will queue the task if needed */
1852 global_listener_queue_task->context = NULL; /* not even a context! */
1853 global_listener_queue_task->process = manage_global_listener_queue;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001854
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001855 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02001856 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02001857
Willy Tarreaue6945732016-12-21 19:57:00 +01001858 list_for_each_entry(pcf, &post_check_list, list) {
1859 err_code |= pcf->fct();
1860 if (err_code & (ERR_ABORT|ERR_FATAL))
1861 exit(1);
1862 }
1863
Willy Tarreaubaaee002006-06-26 02:48:02 +02001864 if (cfg_maxconn > 0)
1865 global.maxconn = cfg_maxconn;
1866
1867 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02001868 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001869 global.pidfile = strdup(cfg_pidfile);
1870 }
1871
Willy Tarreaud0256482015-01-15 21:45:22 +01001872 /* Now we want to compute the maxconn and possibly maxsslconn values.
1873 * It's a bit tricky. If memmax is not set, maxconn defaults to
1874 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
1875 *
1876 * If memmax is set, then it depends on which values are set. If
1877 * maxsslconn is set, we use memmax to determine how many cleartext
1878 * connections may be added, and set maxconn to the sum of the two.
1879 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1880 * the remaining amount of memory between memmax and the cleartext
1881 * connections. If neither are set, then it is considered that all
1882 * connections are SSL-capable, and maxconn is computed based on this,
1883 * then maxsslconn accordingly. We need to know if SSL is used on the
1884 * frontends, backends, or both, because when it's used on both sides,
1885 * we need twice the value for maxsslconn, but we only count the
1886 * handshake once since it is not performed on the two sides at the
1887 * same time (frontend-side is terminated before backend-side begins).
1888 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001889 * ssl_handshake_cost during its initialization. In any case, if
1890 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1891 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001892 */
1893 if (!global.rlimit_memmax) {
1894 if (global.maxconn == 0) {
1895 global.maxconn = DEFAULT_MAXCONN;
1896 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1897 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1898 }
1899 }
1900#ifdef USE_OPENSSL
1901 else if (!global.maxconn && !global.maxsslconn &&
1902 (global.ssl_used_frontend || global.ssl_used_backend)) {
1903 /* memmax is set, compute everything automatically. Here we want
1904 * to ensure that all SSL connections will be served. We take
1905 * care of the number of sides where SSL is used, and consider
1906 * the worst case : SSL used on both sides and doing a handshake
1907 * simultaneously. Note that we can't have more than maxconn
1908 * handshakes at a time by definition, so for the worst case of
1909 * two SSL conns per connection, we count a single handshake.
1910 */
1911 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1912 int64_t mem = global.rlimit_memmax * 1048576ULL;
1913
1914 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1915 mem -= global.maxzlibmem;
1916 mem = mem * MEM_USABLE_RATIO;
1917
1918 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001919 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001920 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1921 global.ssl_handshake_max_cost); // 1 handshake per connection max
1922
1923 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001924#ifdef SYSTEM_MAXCONN
1925 if (global.maxconn > DEFAULT_MAXCONN)
1926 global.maxconn = DEFAULT_MAXCONN;
1927#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001928 global.maxsslconn = sides * global.maxconn;
1929 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1930 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1931 global.maxconn, global.maxsslconn);
1932 }
1933 else if (!global.maxsslconn &&
1934 (global.ssl_used_frontend || global.ssl_used_backend)) {
1935 /* memmax and maxconn are known, compute maxsslconn automatically.
1936 * maxsslconn being forced, we don't know how many of it will be
1937 * on each side if both sides are being used. The worst case is
1938 * when all connections use only one SSL instance because
1939 * handshakes may be on two sides at the same time.
1940 */
1941 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1942 int64_t mem = global.rlimit_memmax * 1048576ULL;
1943 int64_t sslmem;
1944
1945 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1946 mem -= global.maxzlibmem;
1947 mem = mem * MEM_USABLE_RATIO;
1948
Willy Tarreau87b09662015-04-03 00:22:06 +02001949 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001950 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1951 global.maxsslconn = round_2dig(global.maxsslconn);
1952
1953 if (sslmem <= 0 || global.maxsslconn < sides) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001954 ha_alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1955 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1956 "without SSL is %d, but %d was found and SSL is in use.\n",
1957 global.rlimit_memmax,
1958 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
1959 global.maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001960 exit(1);
1961 }
1962
1963 if (global.maxsslconn > sides * global.maxconn)
1964 global.maxsslconn = sides * global.maxconn;
1965
1966 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1967 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1968 }
1969#endif
1970 else if (!global.maxconn) {
1971 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1972 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1973 int64_t mem = global.rlimit_memmax * 1048576ULL;
1974 int64_t clearmem;
1975
1976 if (global.ssl_used_frontend || global.ssl_used_backend)
1977 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1978
1979 mem -= global.maxzlibmem;
1980 mem = mem * MEM_USABLE_RATIO;
1981
1982 clearmem = mem;
1983 if (sides)
1984 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1985
Willy Tarreau87b09662015-04-03 00:22:06 +02001986 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001987 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001988#ifdef SYSTEM_MAXCONN
1989 if (global.maxconn > DEFAULT_MAXCONN)
1990 global.maxconn = DEFAULT_MAXCONN;
1991#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001992
1993 if (clearmem <= 0 || !global.maxconn) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001994 ha_alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
1995 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1996 "is %d, but %d was found.\n",
1997 global.rlimit_memmax,
1998 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
1999 global.maxsslconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01002000 exit(1);
2001 }
2002
2003 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2004 if (sides && global.maxsslconn > sides * global.maxconn) {
2005 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
2006 "to be limited to %d. Better reduce global.maxsslconn to get more "
2007 "room for extra connections.\n", global.maxsslconn, global.maxconn);
2008 }
2009 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
2010 }
2011 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002012
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002013 if (!global.maxpipes) {
2014 /* maxpipes not specified. Count how many frontends and backends
2015 * may be using splicing, and bound that to maxconn.
2016 */
2017 struct proxy *cur;
2018 int nbfe = 0, nbbe = 0;
2019
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002020 for (cur = proxies_list; cur; cur = cur->next) {
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002021 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
2022 if (cur->cap & PR_CAP_FE)
2023 nbfe += cur->maxconn;
2024 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +01002025 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002026 }
2027 }
2028 global.maxpipes = MAX(nbfe, nbbe);
2029 if (global.maxpipes > global.maxconn)
2030 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +01002031 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002032 }
2033
2034
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002035 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002036 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01002037 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Emeric Brunece0c332017-12-06 13:51:49 +01002038 /* compute fd used by async engines */
2039 if (global.ssl_used_async_engines) {
2040 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
2041 global.maxsock += global.maxconn * sides * global.ssl_used_async_engines;
2042 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002043
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002044 if (global.stats_fe)
2045 global.maxsock += global.stats_fe->maxconn;
2046
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002047 if (cfg_peers) {
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002048 /* peers also need to bypass global maxconn */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002049 struct peers *p = cfg_peers;
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002050
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002051 for (p = cfg_peers; p; p = p->next)
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002052 if (p->peers_fe)
2053 global.maxsock += p->peers_fe->maxconn;
2054 }
2055
Willy Tarreau1db37712007-06-03 17:16:49 +02002056 if (global.tune.maxpollevents <= 0)
2057 global.tune.maxpollevents = MAX_POLL_EVENTS;
2058
Olivier Houchard1599b802018-05-24 18:59:04 +02002059 if (global.tune.runqueue_depth <= 0)
2060 global.tune.runqueue_depth = RUNQUEUE_DEPTH;
2061
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01002062 if (global.tune.recv_enough == 0)
2063 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
2064
Willy Tarreau27097842015-09-28 13:53:23 +02002065 if (global.tune.maxrewrite < 0)
2066 global.tune.maxrewrite = MAXREWRITE;
2067
Willy Tarreau27a674e2009-08-17 07:23:33 +02002068 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
2069 global.tune.maxrewrite = global.tune.bufsize / 2;
2070
Willy Tarreaubaaee002006-06-26 02:48:02 +02002071 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
2072 /* command line debug mode inhibits configuration mode */
William Lallemand095ba4c2017-06-01 17:38:50 +02002073 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002074 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
2075 }
2076
William Lallemand095ba4c2017-06-01 17:38:50 +02002077 if (arg_mode & MODE_DAEMON) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002078 /* command line daemon mode inhibits foreground and debug modes mode */
2079 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
William Lallemand095ba4c2017-06-01 17:38:50 +02002080 global.mode |= arg_mode & MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002081 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002082
2083 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02002084
William Lallemand095ba4c2017-06-01 17:38:50 +02002085 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002086 ha_warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
William Lallemand095ba4c2017-06-01 17:38:50 +02002087 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002088 }
2089
William Lallemand095ba4c2017-06-01 17:38:50 +02002090 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_MWORKER))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002091 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002092 ha_warning("<nbproc> is only meaningful in daemon mode or master-worker mode. Setting limit to 1 process.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +02002093 global.nbproc = 1;
2094 }
2095
2096 if (global.nbproc < 1)
2097 global.nbproc = 1;
2098
Christopher Fauletbe0faa22017-08-29 15:37:10 +02002099 if (global.nbthread < 1)
2100 global.nbthread = 1;
2101
Christopher Faulet3ef26392017-08-29 16:46:57 +02002102 /* Realloc trash buffers because global.tune.bufsize may have changed */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002103 if (!init_trash_buffers(0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002104 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet3ef26392017-08-29 16:46:57 +02002105 exit(1);
2106 }
2107
Christopher Faulet96d44832017-11-14 22:02:30 +01002108 if (!init_log_buffers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002109 ha_alert("failed to initialize log buffers.\n");
Christopher Faulet96d44832017-11-14 22:02:30 +01002110 exit(1);
2111 }
2112
Willy Tarreauef1d1f82007-04-16 00:25:25 +02002113 /*
2114 * Note: we could register external pollers here.
2115 * Built-in pollers have been registered before main().
2116 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02002117
Willy Tarreau43b78992009-01-25 15:42:27 +01002118 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02002119 disable_poller("kqueue");
2120
Willy Tarreau43b78992009-01-25 15:42:27 +01002121 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002122 disable_poller("epoll");
2123
Willy Tarreau43b78992009-01-25 15:42:27 +01002124 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002125 disable_poller("poll");
2126
Willy Tarreau43b78992009-01-25 15:42:27 +01002127 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002128 disable_poller("select");
2129
2130 /* Note: we could disable any poller by name here */
2131
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002132 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02002133 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002134 fprintf(stderr, "\n");
2135 list_filters(stderr);
2136 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002137
Willy Tarreau4f60f162007-04-08 16:39:58 +02002138 if (!init_pollers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002139 ha_alert("No polling mechanism available.\n"
2140 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
2141 " is too low on this platform to support maxconn and the number of listeners\n"
2142 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
2143 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
2144 " global maxconn setting to accommodate the system's limitation. For reference,\n"
2145 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
2146 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
2147 " check build settings using 'haproxy -vv'.\n\n",
2148 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002149 exit(1);
2150 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002151 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2152 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002153 }
2154
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002155 if (!global.node)
2156 global.node = strdup(hostname);
2157
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01002158 if (!hlua_post_init())
2159 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01002160
Maxime de Roucy0f503922016-05-13 23:52:55 +02002161 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002162}
2163
Simon Horman6fb82592011-07-15 13:14:11 +09002164static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09002165{
Simon Hormanac821422011-07-15 13:14:09 +09002166 struct acl_term_suite *suite, *suiteb;
2167 struct acl_term *term, *termb;
2168
Simon Horman6fb82592011-07-15 13:14:11 +09002169 if (!cond)
2170 return;
2171
2172 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
2173 list_for_each_entry_safe(term, termb, &suite->terms, list) {
2174 LIST_DEL(&term->list);
2175 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09002176 }
Simon Horman6fb82592011-07-15 13:14:11 +09002177 LIST_DEL(&suite->list);
2178 free(suite);
2179 }
2180
2181 free(cond);
2182}
2183
2184static void deinit_tcp_rules(struct list *rules)
2185{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02002186 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09002187
2188 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09002189 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09002190 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09002191 free(trule);
2192 }
2193}
2194
Simon Horman6fb82592011-07-15 13:14:11 +09002195static void deinit_stick_rules(struct list *rules)
2196{
2197 struct sticking_rule *rule, *ruleb;
2198
2199 list_for_each_entry_safe(rule, ruleb, rules, list) {
2200 LIST_DEL(&rule->list);
2201 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02002202 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09002203 free(rule);
2204 }
2205}
2206
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002207void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002208{
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002209 struct proxy *p = proxies_list, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002210 struct cap_hdr *h,*h_next;
2211 struct server *s,*s_next;
2212 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002213 struct acl_cond *cond, *condb;
2214 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002215 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002216 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002217 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002218 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002219 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01002220 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002221 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02002222 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01002223 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002224 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002225 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01002226 struct post_deinit_fct *pdf;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002227 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002228
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002229 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002230 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02002231 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002232 free(p->id);
2233 free(p->check_req);
2234 free(p->cookie_name);
2235 free(p->cookie_domain);
2236 free(p->url_param_name);
2237 free(p->capture_name);
2238 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09002239 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02002240 if (p->conf.logformat_string != default_http_log_format &&
2241 p->conf.logformat_string != default_tcp_log_format &&
2242 p->conf.logformat_string != clf_http_log_format)
2243 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02002244
Willy Tarreau62a61232013-04-12 18:13:46 +02002245 free(p->conf.lfs_file);
2246 free(p->conf.uniqueid_format_string);
2247 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08002248 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002249
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002250 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
2251 free(p->conf.logformat_sd_string);
2252 free(p->conf.lfsd_file);
2253
Willy Tarreaua534fea2008-08-03 12:19:50 +02002254 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02002255 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002256
Willy Tarreauf4f04122010-01-28 18:10:50 +01002257 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
2258 LIST_DEL(&cwl->list);
2259 free(cwl->s);
2260 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002261 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002262
Willy Tarreauf4f04122010-01-28 18:10:50 +01002263 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
2264 LIST_DEL(&cwl->list);
2265 free(cwl->s);
2266 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002267 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002268
Willy Tarreaub80c2302007-11-30 20:51:32 +01002269 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
2270 LIST_DEL(&cond->list);
2271 prune_acl_cond(cond);
2272 free(cond);
2273 }
2274
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002275 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002276 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002277 regex_free(exp->preg);
2278 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002279 }
2280
Willy Tarreau98d04852015-05-26 12:18:29 +02002281 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002282 expb = exp;
2283 exp = exp->next;
2284 free(expb);
2285 }
2286
2287 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002288 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002289 regex_free(exp->preg);
2290 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002291 }
2292
Willy Tarreau98d04852015-05-26 12:18:29 +02002293 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002294 expb = exp;
2295 exp = exp->next;
2296 free(expb);
2297 }
2298
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002299 /* build a list of unique uri_auths */
2300 if (!ua)
2301 ua = p->uri_auth;
2302 else {
2303 /* check if p->uri_auth is unique */
2304 for (uap = ua; uap; uap=uap->next)
2305 if (uap == p->uri_auth)
2306 break;
2307
Willy Tarreauaccc4e12008-06-24 11:14:45 +02002308 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002309 /* add it, if it is */
2310 p->uri_auth->next = ua;
2311 ua = p->uri_auth;
2312 }
2313 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002314
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002315 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
2316 LIST_DEL(&acl->list);
2317 prune_acl(acl);
2318 free(acl);
2319 }
2320
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002321 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
2322 LIST_DEL(&srule->list);
2323 prune_acl_cond(srule->cond);
2324 free(srule->cond);
2325 free(srule);
2326 }
2327
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002328 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
2329 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002330 if (rule->cond) {
2331 prune_acl_cond(rule->cond);
2332 free(rule->cond);
Thierry FOURNIER / OZON.IO4ed1c952016-11-24 23:57:54 +01002333 free(rule->file);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002334 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002335 free(rule);
2336 }
2337
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002338 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
2339 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01002340 if (rdr->cond) {
2341 prune_acl_cond(rdr->cond);
2342 free(rdr->cond);
2343 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002344 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01002345 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
2346 LIST_DEL(&lf->list);
2347 free(lf);
2348 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002349 free(rdr);
2350 }
2351
William Lallemand0f99e342011-10-12 17:50:54 +02002352 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
2353 LIST_DEL(&log->list);
2354 free(log);
2355 }
2356
William Lallemand723b73a2012-02-08 16:37:49 +01002357 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
2358 LIST_DEL(&lf->list);
2359 free(lf);
2360 }
2361
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002362 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
2363 LIST_DEL(&lf->list);
2364 free(lf);
2365 }
2366
Simon Hormanac821422011-07-15 13:14:09 +09002367 deinit_tcp_rules(&p->tcp_req.inspect_rules);
2368 deinit_tcp_rules(&p->tcp_req.l4_rules);
2369
Simon Horman6fb82592011-07-15 13:14:11 +09002370 deinit_stick_rules(&p->storersp_rules);
2371 deinit_stick_rules(&p->sticking_rules);
2372
Willy Tarreaubaaee002006-06-26 02:48:02 +02002373 h = p->req_cap;
2374 while (h) {
2375 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002376 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002377 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002378 free(h);
2379 h = h_next;
2380 }/* end while(h) */
2381
2382 h = p->rsp_cap;
2383 while (h) {
2384 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002385 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002386 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002387 free(h);
2388 h = h_next;
2389 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002390
Willy Tarreaubaaee002006-06-26 02:48:02 +02002391 s = p->srv;
2392 while (s) {
2393 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002394
Willy Tarreau5b3a2022012-09-28 15:01:02 +02002395 if (s->check.task) {
2396 task_delete(s->check.task);
2397 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002398 }
Simon Hormand60d6912013-11-25 10:46:36 +09002399 if (s->agent.task) {
2400 task_delete(s->agent.task);
2401 task_free(s->agent.task);
2402 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002403
Willy Tarreau2e993902011-10-31 11:53:20 +01002404 if (s->warmup) {
2405 task_delete(s->warmup);
2406 task_free(s->warmup);
2407 }
2408
Willy Tarreaua534fea2008-08-03 12:19:50 +02002409 free(s->id);
2410 free(s->cookie);
Willy Tarreauc9fa0482018-07-10 17:43:27 +02002411 free(s->check.bi.area);
2412 free(s->check.bo.area);
2413 free(s->agent.bi.area);
2414 free(s->agent.bo.area);
James Brown55f9ff12015-10-21 18:19:05 -07002415 free(s->agent.send_string);
Christopher Faulet67957bd2017-09-27 11:00:59 +02002416 free(s->hostname_dn);
Sárközi, László34c01792014-09-05 10:08:23 +02002417 free((char*)s->conf.file);
Olivier Houchard7fc3be72018-11-22 18:50:54 +01002418 free(s->idle_conns);
2419 free(s->priv_conns);
2420 free(s->safe_conns);
Olivier Houchard0c18a6f2018-12-02 14:11:41 +01002421 free(s->idle_orphan_conns);
2422 if (s->idle_task) {
2423 int i;
2424
2425 for (i = 0; i < global.nbthread; i++)
2426 task_free(s->idle_task[i]);
2427 free(s->idle_task);
2428 }
Willy Tarreau17d45382016-12-22 21:16:08 +01002429
2430 if (s->use_ssl || s->check.use_ssl) {
2431 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
2432 xprt_get(XPRT_SSL)->destroy_srv(s);
2433 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002434 HA_SPIN_DESTROY(&s->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002435 free(s);
2436 s = s_next;
2437 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002438
Willy Tarreau4348fad2012-09-20 16:48:07 +02002439 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002440 /*
2441 * Zombie proxy, the listener just pretend to be up
2442 * because they still hold an opened fd.
2443 * Close it and give the listener its real state.
2444 */
2445 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
2446 close(l->fd);
2447 l->state = LI_INIT;
2448 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02002449 unbind_listener(l);
2450 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002451 LIST_DEL(&l->by_fe);
2452 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002453 free(l->name);
2454 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002455 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002456 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002457
Willy Tarreau4348fad2012-09-20 16:48:07 +02002458 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002459 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01002460 if (bind_conf->xprt->destroy_bind_conf)
2461 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002462 free(bind_conf->file);
2463 free(bind_conf->arg);
2464 LIST_DEL(&bind_conf->by_fe);
2465 free(bind_conf);
2466 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02002467
Christopher Fauletd7c91962015-04-30 11:48:27 +02002468 flt_deinit(p);
2469
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002470 free(p->desc);
2471 free(p->fwdfor_hdr_name);
2472
Willy Tarreauff011f22011-01-06 17:51:27 +01002473 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06002474 free_http_res_rules(&p->http_res_rules);
Willy Tarreau1f89b182017-11-22 16:53:53 +01002475 task_free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01002476
Willy Tarreaubafbe012017-11-24 17:34:44 +01002477 pool_destroy(p->req_cap_pool);
2478 pool_destroy(p->rsp_cap_pool);
2479 pool_destroy(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002480
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002481 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002482 p = p->next;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002483 HA_SPIN_DESTROY(&p0->lbprm.lock);
2484 HA_SPIN_DESTROY(&p0->lock);
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002485 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002486 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02002487
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002488 while (ua) {
2489 uap = ua;
2490 ua = ua->next;
2491
Willy Tarreaua534fea2008-08-03 12:19:50 +02002492 free(uap->uri_prefix);
2493 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002494 free(uap->node);
2495 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002496
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002497 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01002498 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002499
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002500 free(uap);
2501 }
2502
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002503 userlist_free(userlist);
2504
David Carlier834cb2e2015-09-25 12:02:25 +01002505 cfg_unregister_sections();
2506
Christopher Faulet0132d062017-07-26 15:33:35 +02002507 deinit_log_buffers();
David Carlier834cb2e2015-09-25 12:02:25 +01002508
Willy Tarreaudd815982007-10-16 12:25:14 +02002509 protocol_unbind_all();
2510
Willy Tarreau05554e62016-12-21 20:46:26 +01002511 list_for_each_entry(pdf, &post_deinit_list, list)
2512 pdf->fct();
2513
Joe Williamsdf5b38f2010-12-29 17:05:48 +01002514 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02002515 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002516 free(global.chroot); global.chroot = NULL;
2517 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002518 free(global.node); global.node = NULL;
2519 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002520 free(oldpids); oldpids = NULL;
Willy Tarreau1f89b182017-11-22 16:53:53 +01002521 task_free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002522
William Lallemand0f99e342011-10-12 17:50:54 +02002523 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
2524 LIST_DEL(&log->list);
2525 free(log);
2526 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01002527 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02002528 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01002529 LIST_DEL(&wl->list);
2530 free(wl);
2531 }
2532
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002533 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
2534 if (bol->must_free)
2535 free((void *)bol->str);
2536 LIST_DEL(&bol->list);
2537 free(bol);
2538 }
2539
Christopher Fauletff2613e2016-11-09 11:36:17 +01002540 vars_prune(&global.vars, NULL, NULL);
Willy Tarreau2455ceb2018-11-26 15:57:34 +01002541 pool_destroy_all();
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002542 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002543} /* end deinit() */
2544
William Lallemand72160322018-11-06 17:37:16 +01002545
2546
2547/* This is a wrapper for the sockpair FD, It tests if the socket received an
2548 * EOF, if not, it calls listener_accept */
2549void mworker_accept_wrapper(int fd)
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002550{
2551 char c;
William Lallemand72160322018-11-06 17:37:16 +01002552 int ret;
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002553
William Lallemand72160322018-11-06 17:37:16 +01002554 while (1) {
2555 ret = recv(fd, &c, 1, MSG_PEEK);
2556 if (ret == -1) {
2557 if (errno == EINTR)
2558 continue;
2559 if (errno == EAGAIN) {
2560 fd_cant_recv(fd);
2561 return;
2562 }
2563 break;
2564 } else if (ret > 0) {
2565 listener_accept(fd);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002566 return;
William Lallemand72160322018-11-06 17:37:16 +01002567 } else if (ret == 0) {
2568 /* At this step the master is down before
2569 * this worker perform a 'normal' exit.
2570 * So we want to exit with an error but
2571 * other threads could currently process
2572 * some stuff so we can't perform a clean
2573 * deinit().
2574 */
2575 exit(EXIT_FAILURE);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002576 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002577 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002578 return;
2579}
2580
William Lallemand72160322018-11-06 17:37:16 +01002581/*
William Lallemand72160322018-11-06 17:37:16 +01002582 * This function register the accept wrapper for the sockpair of the master worker
2583 */
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002584void mworker_pipe_register()
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002585{
William Lallemand72160322018-11-06 17:37:16 +01002586 /* The iocb should be already initialized with listener_accept */
William Lallemanda90cacf2018-11-07 08:38:32 +01002587 if (fdtab[proc_self->ipc_fd[1]].iocb == mworker_accept_wrapper)
2588 return;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002589
William Lallemandbc193052018-09-11 10:06:26 +02002590 fcntl(proc_self->ipc_fd[1], F_SETFL, O_NONBLOCK);
Emeric Brunc8c0ed92018-10-11 15:27:07 +02002591 /* In multi-tread, we need only one thread to process
2592 * events on the pipe with master
2593 */
William Lallemande260e0d2018-11-08 12:00:14 +01002594 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 +02002595 fd_want_recv(proc_self->ipc_fd[1]);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002596}
Christopher Fauletdc628a32017-10-19 11:59:44 +02002597
Willy Tarreau918ff602011-07-25 16:33:49 +02002598/* Runs the polling loop */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01002599static void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02002600{
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002601 int next, exp;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002602
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002603 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002604 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002605 /* Process a few tasks */
2606 process_runnable_tasks();
2607
William Lallemand1aab50b2018-06-07 09:46:01 +02002608 /* check if we caught some signals and process them in the
2609 first thread */
2610 if (tid == 0)
2611 signal_process_queue();
Willy Tarreau29857942009-05-10 09:01:21 +02002612
Willy Tarreau58b458d2008-06-29 22:40:23 +02002613 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002614 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002615
Willy Tarreau85c459d2018-08-02 10:54:31 +02002616 /* stop when there's nothing left to do */
William Lallemanda7199262018-11-16 16:57:20 +01002617 if ((jobs - unstoppable_jobs) == 0)
Willy Tarreau85c459d2018-08-02 10:54:31 +02002618 break;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002619
Willy Tarreau10146c92015-04-13 20:44:19 +02002620 /* expire immediately if events are pending */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002621 exp = now_ms;
Christopher Faulet32467fe2018-01-15 12:16:34 +01002622 if (fd_cache_mask & tid_bit)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002623 activity[tid].wake_cache++;
2624 else if (active_tasks_mask & tid_bit)
2625 activity[tid].wake_tasks++;
William Lallemand1aab50b2018-06-07 09:46:01 +02002626 else if (signal_queue_len && tid == 0)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002627 activity[tid].wake_signal++;
Olivier Houchard79321b92018-07-26 17:55:11 +02002628 else {
2629 HA_ATOMIC_OR(&sleeping_thread_mask, tid_bit);
2630 __ha_barrier_store();
2631 if (active_tasks_mask & tid_bit) {
2632 activity[tid].wake_tasks++;
2633 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
2634 } else
2635 exp = next;
2636 }
Willy Tarreau10146c92015-04-13 20:44:19 +02002637
Willy Tarreau58b458d2008-06-29 22:40:23 +02002638 /* The poller will ensure it returns around <next> */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002639 cur_poller.poll(&cur_poller, exp);
Olivier Houchard79321b92018-07-26 17:55:11 +02002640 if (sleeping_thread_mask & tid_bit)
2641 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01002642 fd_process_cached_events();
Emeric Brun64cc49c2017-10-03 14:46:45 +02002643
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002644 activity[tid].loops++;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002645 }
2646}
2647
Christopher Faulet1d17c102017-08-29 15:38:48 +02002648static void *run_thread_poll_loop(void *data)
2649{
2650 struct per_thread_init_fct *ptif;
2651 struct per_thread_deinit_fct *ptdf;
Christopher Fauletda18b9d2018-01-25 16:10:16 +01002652 __decl_hathreads(static HA_SPINLOCK_T start_lock);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002653
Willy Tarreau0c026f42018-08-01 19:12:20 +02002654 ha_set_tid(*((unsigned int *)data));
Christopher Faulet1d17c102017-08-29 15:38:48 +02002655 tv_update_date(-1,-1);
2656
2657 list_for_each_entry(ptif, &per_thread_init_list, list) {
2658 if (!ptif->fct()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002659 ha_alert("failed to initialize thread %u.\n", tid);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002660 exit(1);
2661 }
2662 }
2663
William Lallemandbc193052018-09-11 10:06:26 +02002664 if ((global.mode & MODE_MWORKER) && master == 0) {
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002665 HA_SPIN_LOCK(START_LOCK, &start_lock);
2666 mworker_pipe_register();
2667 HA_SPIN_UNLOCK(START_LOCK, &start_lock);
2668 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002669
2670 protocol_enable_all();
Christopher Faulet1d17c102017-08-29 15:38:48 +02002671 run_poll_loop();
2672
2673 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
2674 ptdf->fct();
2675
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002676#ifdef USE_THREAD
William Lallemand091d8272018-06-24 09:37:03 +02002677 HA_ATOMIC_AND(&all_threads_mask, ~tid_bit);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002678 if (tid > 0)
2679 pthread_exit(NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002680#endif
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002681 return NULL;
2682}
Christopher Faulet1d17c102017-08-29 15:38:48 +02002683
Willy Tarreaue9b26022011-08-01 20:57:55 +02002684/* This is the global management task for listeners. It enables listeners waiting
2685 * for global resources when there are enough free resource, or at least once in
2686 * a while. It is designed to be called as a task.
2687 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02002688static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state)
Willy Tarreaue9b26022011-08-01 20:57:55 +02002689{
2690 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02002691 /* queue is empty, nothing to do */
2692 if (LIST_ISEMPTY(&global_listener_queue))
2693 goto out;
2694
2695 /* If there are still too many concurrent connections, let's wait for
2696 * some of them to go away. We don't need to re-arm the timer because
2697 * each of them will scan the queue anyway.
2698 */
2699 if (unlikely(actconn >= global.maxconn))
2700 goto out;
2701
2702 /* We should periodically try to enable listeners waiting for a global
2703 * resource here, because it is possible, though very unlikely, that
2704 * they have been blocked by a temporary lack of global resource such
2705 * as a file descriptor or memory and that the temporary condition has
2706 * disappeared.
2707 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002708 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02002709
2710 out:
2711 t->expire = next;
2712 task_queue(t);
2713 return t;
2714}
Willy Tarreau4f60f162007-04-08 16:39:58 +02002715
Willy Tarreaubaaee002006-06-26 02:48:02 +02002716int main(int argc, char **argv)
2717{
2718 int err, retry;
2719 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02002720 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02002721 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002722
Olivier Houchard5fa300d2018-02-03 15:15:21 +01002723 setvbuf(stdout, NULL, _IONBF, 0);
Willy Tarreau5794fb02018-11-25 18:43:29 +01002724
2725 /* process all initcalls in order of potential dependency */
2726 RUN_INITCALLS(STG_PREPARE);
2727 RUN_INITCALLS(STG_LOCK);
2728 RUN_INITCALLS(STG_ALLOC);
2729 RUN_INITCALLS(STG_POOL);
2730 RUN_INITCALLS(STG_REGISTER);
2731 RUN_INITCALLS(STG_INIT);
2732
Emeric Bruncf20bf12010-10-22 16:06:11 +02002733 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002734 signal_register_fct(SIGQUIT, dump, SIGQUIT);
2735 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
2736 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
William Lallemand73b85e72017-06-01 17:38:51 +02002737 signal_register_fct(SIGUSR2, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002738
Willy Tarreaue437c442010-03-17 18:02:46 +01002739 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
2740 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
2741 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002742 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002743 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002744
Willy Tarreaudc23a922011-02-16 11:10:36 +01002745 /* ulimits */
2746 if (!global.rlimit_nofile)
2747 global.rlimit_nofile = global.maxsock;
2748
2749 if (global.rlimit_nofile) {
2750 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
2751 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02002752 /* try to set it to the max possible at least */
2753 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02002754 limit.rlim_cur = limit.rlim_max;
2755 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
2756 getrlimit(RLIMIT_NOFILE, &limit);
2757
Christopher Faulet767a84b2017-11-24 16:50:31 +01002758 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 +02002759 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002760 }
2761 }
2762
2763 if (global.rlimit_memmax) {
2764 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01002765 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002766#ifdef RLIMIT_AS
2767 if (setrlimit(RLIMIT_AS, &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#else
2772 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002773 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2774 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002775 }
2776#endif
2777 }
2778
Olivier Houchardf73629d2017-04-05 22:33:04 +02002779 if (old_unixsocket) {
William Lallemand85b0bd92017-06-01 17:38:53 +02002780 if (strcmp("/dev/null", old_unixsocket) != 0) {
2781 if (get_old_sockets(old_unixsocket) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002782 ha_alert("Failed to get the sockets from the old process!\n");
William Lallemand85b0bd92017-06-01 17:38:53 +02002783 if (!(global.mode & MODE_MWORKER))
2784 exit(1);
2785 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002786 }
2787 }
William Lallemand85b0bd92017-06-01 17:38:53 +02002788 get_cur_unixsocket();
2789
Willy Tarreaubaaee002006-06-26 02:48:02 +02002790 /* We will loop at most 100 times with 10 ms delay each time.
2791 * That's at most 1 second. We only send a signal to old pids
2792 * if we cannot grab at least one port.
2793 */
2794 retry = MAX_START_RETRIES;
2795 err = ERR_NONE;
2796 while (retry >= 0) {
2797 struct timeval w;
2798 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01002799 /* exit the loop on no error or fatal error */
2800 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002801 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02002802 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002803 break;
2804
2805 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
2806 * listening sockets. So on those platforms, it would be wiser to
2807 * simply send SIGUSR1, which will not be undoable.
2808 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02002809 if (tell_old_pids(SIGTTOU) == 0) {
2810 /* no need to wait if we can't contact old pids */
2811 retry = 0;
2812 continue;
2813 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002814 /* give some time to old processes to stop listening */
2815 w.tv_sec = 0;
2816 w.tv_usec = 10*1000;
2817 select(0, NULL, NULL, NULL, &w);
2818 retry--;
2819 }
2820
2821 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01002822 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02002823 if (retry != MAX_START_RETRIES && nb_oldpids) {
2824 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002825 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02002826 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002827 exit(1);
2828 }
2829
William Lallemand944e6192018-11-21 15:48:31 +01002830 if (!(global.mode & MODE_MWORKER_WAIT) && listeners == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002831 ha_alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002832 /* Note: we don't have to send anything to the old pids because we
2833 * never stopped them. */
2834 exit(1);
2835 }
2836
Emeric Bruncf20bf12010-10-22 16:06:11 +02002837 err = protocol_bind_all(errmsg, sizeof(errmsg));
2838 if ((err & ~ERR_WARN) != ERR_NONE) {
2839 if ((err & ERR_ALERT) || (err & ERR_WARN))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002840 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002841
Christopher Faulet767a84b2017-11-24 16:50:31 +01002842 ha_alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002843 protocol_unbind_all(); /* cleanup everything we can */
2844 if (nb_oldpids)
2845 tell_old_pids(SIGTTIN);
2846 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002847 } else if (err & ERR_WARN) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002848 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02002849 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002850 /* Ok, all listener should now be bound, close any leftover sockets
2851 * the previous process gave us, we don't need them anymore
2852 */
2853 while (xfer_sock_list != NULL) {
2854 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
2855 close(xfer_sock_list->fd);
2856 free(xfer_sock_list->iface);
2857 free(xfer_sock_list->namespace);
2858 free(xfer_sock_list);
2859 xfer_sock_list = tmpxfer;
2860 }
Willy Tarreaudd815982007-10-16 12:25:14 +02002861
Willy Tarreaubaaee002006-06-26 02:48:02 +02002862 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002863 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
2864 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002865
Willy Tarreaubaaee002006-06-26 02:48:02 +02002866 /* MODE_QUIET can inhibit alerts and warnings below this line */
2867
PiBa-NL149a81a2017-12-25 21:03:31 +01002868 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL) {
2869 /* either stdin/out/err are already closed or should stay as they are. */
2870 if ((global.mode & MODE_DAEMON)) {
2871 /* daemon mode re-executing, stdin/stdout/stderr are already closed so keep quiet */
2872 global.mode &= ~MODE_VERBOSE;
2873 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2874 }
2875 } else {
2876 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
2877 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01002878 stdio_quiet(-1);
PiBa-NL149a81a2017-12-25 21:03:31 +01002879 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002880 }
2881
2882 /* open log & pid files before the chroot */
William Lallemand80293002017-11-06 11:00:03 +01002883 if ((global.mode & MODE_DAEMON || global.mode & MODE_MWORKER) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002884 unlink(global.pidfile);
2885 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
2886 if (pidfd < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002887 ha_alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002888 if (nb_oldpids)
2889 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02002890 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002891 exit(1);
2892 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002893 }
2894
Willy Tarreaub38651a2007-03-24 17:24:39 +01002895 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002896 ha_alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
2897 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002898 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01002899 exit(1);
2900 }
2901
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002902 /* If the user is not root, we'll still let him try the configuration
2903 * but we inform him that unexpected behaviour may occur.
2904 */
2905 if ((global.last_checks & LSTCHK_NETADM) && getuid())
Christopher Faulet767a84b2017-11-24 16:50:31 +01002906 ha_warning("[%s.main()] Some options which require full privileges"
2907 " might not work well.\n"
2908 "", argv[0]);
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002909
William Lallemand095ba4c2017-06-01 17:38:50 +02002910 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2911
2912 /* chroot if needed */
2913 if (global.chroot != NULL) {
2914 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002915 ha_alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02002916 if (nb_oldpids)
2917 tell_old_pids(SIGTTIN);
2918 protocol_unbind_all();
2919 exit(1);
2920 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002921 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002922 }
2923
William Lallemand944e6192018-11-21 15:48:31 +01002924 if (nb_oldpids && !(global.mode & MODE_MWORKER_WAIT))
Willy Tarreaubb545b42010-08-25 12:58:59 +02002925 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002926
William Lallemand8a361b52017-06-20 11:20:33 +02002927 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
2928 nb_oldpids = 0;
2929 free(oldpids);
2930 oldpids = NULL;
2931 }
2932
2933
Willy Tarreaubaaee002006-06-26 02:48:02 +02002934 /* Note that any error at this stage will be fatal because we will not
2935 * be able to restart the old pids.
2936 */
2937
William Lallemand095ba4c2017-06-01 17:38:50 +02002938 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2939 /* setgid / setuid */
2940 if (global.gid) {
2941 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01002942 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2943 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002944
2945 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002946 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02002947 protocol_unbind_all();
2948 exit(1);
2949 }
2950 }
Michael Schererab012dd2013-01-12 18:35:19 +01002951
William Lallemand095ba4c2017-06-01 17:38:50 +02002952 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002953 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Michael Schererab012dd2013-01-12 18:35:19 +01002954 protocol_unbind_all();
2955 exit(1);
2956 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002957 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002958 /* check ulimits */
2959 limit.rlim_cur = limit.rlim_max = 0;
2960 getrlimit(RLIMIT_NOFILE, &limit);
2961 if (limit.rlim_cur < global.maxsock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002962 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",
2963 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002964 }
2965
William Lallemand944e6192018-11-21 15:48:31 +01002966 if (global.mode & (MODE_DAEMON | MODE_MWORKER | MODE_MWORKER_WAIT)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002967 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002968 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002969 int ret = 0;
2970 int proc;
William Lallemande1340412017-12-28 16:09:36 +01002971 int devnullfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002972
William Lallemand095ba4c2017-06-01 17:38:50 +02002973 /*
2974 * if daemon + mworker: must fork here to let a master
2975 * process live in background before forking children
2976 */
William Lallemand73b85e72017-06-01 17:38:51 +02002977
2978 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)
2979 && (global.mode & MODE_MWORKER)
2980 && (global.mode & MODE_DAEMON)) {
William Lallemand095ba4c2017-06-01 17:38:50 +02002981 ret = fork();
2982 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002983 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002984 protocol_unbind_all();
2985 exit(1); /* there has been an error */
William Lallemandbfd8eb52018-07-04 15:31:23 +02002986 } else if (ret > 0) { /* parent leave to daemonize */
William Lallemand095ba4c2017-06-01 17:38:50 +02002987 exit(0);
William Lallemandbfd8eb52018-07-04 15:31:23 +02002988 } else /* change the process group ID in the child (master process) */
2989 setsid();
William Lallemand095ba4c2017-06-01 17:38:50 +02002990 }
William Lallemande20b6a62017-06-01 17:38:55 +02002991
William Lallemande20b6a62017-06-01 17:38:55 +02002992
William Lallemanddeed7802017-11-06 11:00:04 +01002993 /* if in master-worker mode, write the PID of the father */
2994 if (global.mode & MODE_MWORKER) {
2995 char pidstr[100];
2996 snprintf(pidstr, sizeof(pidstr), "%d\n", getpid());
Willy Tarreau46ec48b2018-01-23 19:20:19 +01002997 if (pidfd >= 0)
2998 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
William Lallemanddeed7802017-11-06 11:00:04 +01002999 }
3000
Willy Tarreaubaaee002006-06-26 02:48:02 +02003001 /* the father launches the required number of processes */
William Lallemand944e6192018-11-21 15:48:31 +01003002 if (!(global.mode & MODE_MWORKER_WAIT)) {
3003 children = calloc(global.nbproc, sizeof(int));
3004 for (proc = 0; proc < global.nbproc; proc++) {
3005 ret = fork();
3006 if (ret < 0) {
3007 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
3008 protocol_unbind_all();
3009 exit(1); /* there has been an error */
3010 }
3011 else if (ret == 0) /* child breaks here */
3012 break;
3013 children[proc] = ret;
3014 if (pidfd >= 0 && !(global.mode & MODE_MWORKER)) {
3015 char pidstr[100];
3016 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
3017 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
3018 }
3019 if (global.mode & MODE_MWORKER) {
3020 struct mworker_proc *child;
William Lallemandce83b4a2018-10-26 14:47:30 +02003021
William Lallemand220567e2018-11-21 18:04:53 +01003022 ha_notice("New worker #%d (%d) forked\n", relative_pid, ret);
William Lallemand944e6192018-11-21 15:48:31 +01003023 /* find the right mworker_proc */
3024 list_for_each_entry(child, &proc_list, list) {
3025 if (child->relative_pid == relative_pid &&
3026 child->reloads == 0) {
3027 child->timestamp = now.tv_sec;
3028 child->pid = ret;
3029 break;
3030 }
William Lallemandce83b4a2018-10-26 14:47:30 +02003031 }
3032 }
William Lallemandbc193052018-09-11 10:06:26 +02003033
William Lallemand944e6192018-11-21 15:48:31 +01003034 relative_pid++; /* each child will get a different one */
3035 pid_bit <<= 1;
3036 }
3037 } else {
3038 /* wait mode */
3039 global.nbproc = 1;
3040 proc = 1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003041 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003042
3043#ifdef USE_CPU_AFFINITY
3044 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02003045 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003046 global.cpu_map.proc[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003047#ifdef __FreeBSD__
Olivier Houchard97148f62017-08-16 17:29:11 +02003048 {
3049 cpuset_t cpuset;
3050 int i;
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003051 unsigned long cpu_map = global.cpu_map.proc[proc];
Olivier Houchard97148f62017-08-16 17:29:11 +02003052
3053 CPU_ZERO(&cpuset);
3054 while ((i = ffsl(cpu_map)) > 0) {
3055 CPU_SET(i - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003056 cpu_map &= ~(1UL << (i - 1));
Olivier Houchard97148f62017-08-16 17:29:11 +02003057 }
3058 ret = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset), &cpuset);
3059 }
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003060#else
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003061 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map.proc[proc]);
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003062#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003063#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02003064 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02003065 if (pidfd >= 0) {
3066 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
3067 close(pidfd);
3068 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02003069
3070 /* We won't ever use this anymore */
Willy Tarreaud137dd32010-08-25 12:49:05 +02003071 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003072
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003073 if (proc == global.nbproc) {
William Lallemand944e6192018-11-21 15:48:31 +01003074 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003075
3076 if ((!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
3077 (global.mode & MODE_DAEMON)) {
3078 /* detach from the tty, this is required to properly daemonize. */
William Lallemande1340412017-12-28 16:09:36 +01003079 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL))
3080 stdio_quiet(-1);
3081
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003082 global.mode &= ~MODE_VERBOSE;
3083 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003084 }
3085
William Lallemandb3f2be32018-09-11 10:06:18 +02003086 mworker_loop();
William Lallemand1499b9b2017-06-07 15:04:47 +02003087 /* should never get there */
3088 exit(EXIT_FAILURE);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003089 }
William Lallemandcf4e4962017-06-08 19:05:48 +02003090#if defined(USE_OPENSSL) && !defined(OPENSSL_NO_DH)
Grant Zhang872f9c22017-01-21 01:10:18 +00003091 ssl_free_dh();
3092#endif
William Lallemand1499b9b2017-06-07 15:04:47 +02003093 exit(0); /* parent must leave */
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003094 }
3095
William Lallemandcb11fd22017-06-01 17:38:52 +02003096 /* child must never use the atexit function */
3097 atexit_flag = 0;
3098
William Lallemandbc193052018-09-11 10:06:26 +02003099 /* close useless master sockets */
3100 if (global.mode & MODE_MWORKER) {
3101 struct mworker_proc *child, *it;
3102 master = 0;
3103
William Lallemand309dc9a2018-10-26 14:47:45 +02003104 mworker_cli_proxy_stop();
3105
William Lallemandbc193052018-09-11 10:06:26 +02003106 /* free proc struct of other processes */
3107 list_for_each_entry_safe(child, it, &proc_list, list) {
William Lallemandce83b4a2018-10-26 14:47:30 +02003108 /* close the FD of the master side for all
3109 * workers, we don't need to close the worker
3110 * side of other workers since it's done with
3111 * the bind_proc */
Tim Duesterhus742e0f92018-11-25 20:03:39 +01003112 if (child->ipc_fd[0] >= 0)
3113 close(child->ipc_fd[0]);
William Lallemandce83b4a2018-10-26 14:47:30 +02003114 if (child->relative_pid == relative_pid &&
3115 child->reloads == 0) {
3116 /* keep this struct if this is our pid */
3117 proc_self = child;
William Lallemandbc193052018-09-11 10:06:26 +02003118 continue;
William Lallemandce83b4a2018-10-26 14:47:30 +02003119 }
William Lallemandbc193052018-09-11 10:06:26 +02003120 LIST_DEL(&child->list);
3121 free(child);
3122 }
3123 }
Willy Tarreau1605c7a2018-01-23 19:01:49 +01003124
William Lallemande1340412017-12-28 16:09:36 +01003125 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
3126 devnullfd = open("/dev/null", O_RDWR, 0);
3127 if (devnullfd < 0) {
3128 ha_alert("Cannot open /dev/null\n");
3129 exit(EXIT_FAILURE);
3130 }
3131 }
3132
William Lallemand095ba4c2017-06-01 17:38:50 +02003133 /* Must chroot and setgid/setuid in the children */
3134 /* chroot if needed */
3135 if (global.chroot != NULL) {
3136 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003137 ha_alert("[%s.main()] Cannot chroot1(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02003138 if (nb_oldpids)
3139 tell_old_pids(SIGTTIN);
3140 protocol_unbind_all();
3141 exit(1);
3142 }
3143 }
3144
3145 free(global.chroot);
3146 global.chroot = NULL;
3147
3148 /* setgid / setuid */
3149 if (global.gid) {
3150 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01003151 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
3152 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02003153
3154 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003155 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003156 protocol_unbind_all();
3157 exit(1);
3158 }
3159 }
3160
3161 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003162 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003163 protocol_unbind_all();
3164 exit(1);
3165 }
3166
William Lallemand7f80eb22017-05-26 18:19:55 +02003167 /* pass through every cli socket, and check if it's bound to
3168 * the current process and if it exposes listeners sockets.
3169 * Caution: the GTUNE_SOCKET_TRANSFER is now set after the fork.
3170 * */
3171
3172 if (global.stats_fe) {
3173 struct bind_conf *bind_conf;
3174
3175 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
3176 if (bind_conf->level & ACCESS_FD_LISTENERS) {
3177 if (!bind_conf->bind_proc || bind_conf->bind_proc & (1UL << proc)) {
3178 global.tune.options |= GTUNE_SOCKET_TRANSFER;
3179 break;
3180 }
3181 }
3182 }
3183 }
3184
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003185 /* we might have to unbind some proxies from some processes */
Olivier Houchardfbc74e82017-11-24 16:54:05 +01003186 px = proxies_list;
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003187 while (px != NULL) {
3188 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02003189 if (!(px->bind_proc & (1UL << proc))) {
3190 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
3191 zombify_proxy(px);
3192 else
3193 stop_proxy(px);
3194 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003195 }
3196 px = px->next;
3197 }
3198
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003199 /* we might have to unbind some peers sections from some processes */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02003200 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003201 if (!curpeers->peers_fe)
3202 continue;
3203
3204 if (curpeers->peers_fe->bind_proc & (1UL << proc))
3205 continue;
3206
3207 stop_proxy(curpeers->peers_fe);
3208 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02003209 signal_unregister_handler(curpeers->sighandler);
3210 task_delete(curpeers->sync_task);
3211 task_free(curpeers->sync_task);
3212 curpeers->sync_task = NULL;
3213 task_free(curpeers->peers_fe->task);
3214 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003215 curpeers->peers_fe = NULL;
3216 }
3217
William Lallemand2e8fad92018-11-13 16:18:23 +01003218 /*
3219 * This is only done in daemon mode because we might want the
3220 * logs on stdout in mworker mode. If we're NOT in QUIET mode,
3221 * we should now close the 3 first FDs to ensure that we can
3222 * detach from the TTY. We MUST NOT do it in other cases since
3223 * it would have already be done, and 0-2 would have been
3224 * affected to listening sockets
Willy Tarreaubaaee002006-06-26 02:48:02 +02003225 */
William Lallemand2e8fad92018-11-13 16:18:23 +01003226 if ((global.mode & MODE_DAEMON) &&
3227 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02003228 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01003229 stdio_quiet(devnullfd);
Willy Tarreau106cb762008-11-16 07:40:34 +01003230 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003231 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
3232 }
3233 pid = getpid(); /* update child's pid */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003234 if (!(global.mode & MODE_MWORKER)) /* in mworker mode we don't want a new pgid for the children */
3235 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02003236 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02003237 }
3238
Christopher Faulete3a5e352017-10-24 13:53:54 +02003239 global.mode &= ~MODE_STARTING;
Willy Tarreau4f60f162007-04-08 16:39:58 +02003240 /*
3241 * That's it : the central polling loop. Run until we stop.
3242 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02003243#ifdef USE_THREAD
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003244 {
Christopher Faulet1d17c102017-08-29 15:38:48 +02003245 unsigned int *tids = calloc(global.nbthread, sizeof(unsigned int));
3246 pthread_t *threads = calloc(global.nbthread, sizeof(pthread_t));
3247 int i;
William Lallemand1aab50b2018-06-07 09:46:01 +02003248 sigset_t blocked_sig, old_sig;
Christopher Faulet1d17c102017-08-29 15:38:48 +02003249
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003250 /* Init tids array */
3251 for (i = 0; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003252 tids[i] = i;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003253
William Lallemand1aab50b2018-06-07 09:46:01 +02003254 /* ensure the signals will be blocked in every thread */
3255 sigfillset(&blocked_sig);
3256 sigdelset(&blocked_sig, SIGPROF);
3257 sigdelset(&blocked_sig, SIGBUS);
3258 sigdelset(&blocked_sig, SIGFPE);
3259 sigdelset(&blocked_sig, SIGILL);
3260 sigdelset(&blocked_sig, SIGSEGV);
3261 pthread_sigmask(SIG_SETMASK, &blocked_sig, &old_sig);
3262
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003263 /* Create nbthread-1 thread. The first thread is the current process */
3264 threads[0] = pthread_self();
3265 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003266 pthread_create(&threads[i], NULL, &run_thread_poll_loop, &tids[i]);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003267
Christopher Faulet62519022017-10-16 15:49:32 +02003268#ifdef USE_CPU_AFFINITY
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003269 /* Now the CPU affinity for all threads */
3270 for (i = 0; i < global.nbthread; i++) {
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003271 if (global.cpu_map.proc[relative_pid-1])
3272 global.cpu_map.thread[relative_pid-1][i] &= global.cpu_map.proc[relative_pid-1];
Christopher Faulet62519022017-10-16 15:49:32 +02003273
Willy Tarreau421f02e2018-01-20 18:19:22 +01003274 if (i < MAX_THREADS && /* only the first 32/64 threads may be pinned */
Olivier Houchard829aa242017-12-01 18:19:43 +01003275 global.cpu_map.thread[relative_pid-1][i]) {/* only do this if the thread has a THREAD map */
3276#if defined(__FreeBSD__) || defined(__NetBSD__)
3277 cpuset_t cpuset;
3278#else
3279 cpu_set_t cpuset;
3280#endif
3281 int j;
3282 unsigned long cpu_map = global.cpu_map.thread[relative_pid-1][i];
3283
3284 CPU_ZERO(&cpuset);
3285
3286 while ((j = ffsl(cpu_map)) > 0) {
3287 CPU_SET(j - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003288 cpu_map &= ~(1UL << (j - 1));
Olivier Houchard829aa242017-12-01 18:19:43 +01003289 }
Christopher Faulet62519022017-10-16 15:49:32 +02003290 pthread_setaffinity_np(threads[i],
Olivier Houchard829aa242017-12-01 18:19:43 +01003291 sizeof(cpuset), &cpuset);
3292 }
Christopher Faulet1d17c102017-08-29 15:38:48 +02003293 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003294#endif /* !USE_CPU_AFFINITY */
3295
William Lallemand1aab50b2018-06-07 09:46:01 +02003296 /* when multithreading we need to let only the thread 0 handle the signals */
William Lallemandd3801c12018-09-11 10:06:23 +02003297 haproxy_unblock_signals();
William Lallemand1aab50b2018-06-07 09:46:01 +02003298
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003299 /* Finally, start the poll loop for the first thread */
3300 run_thread_poll_loop(&tids[0]);
3301
3302 /* Wait the end of other threads */
3303 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003304 pthread_join(threads[i], NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003305
Christopher Faulet1d17c102017-08-29 15:38:48 +02003306 free(tids);
3307 free(threads);
3308
Christopher Fauletb79a94c2017-05-30 15:34:30 +02003309#if defined(DEBUG_THREAD) || defined(DEBUG_FULL)
3310 show_lock_stats();
3311#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003312 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003313#else /* ! USE_THREAD */
William Lallemandd3801c12018-09-11 10:06:23 +02003314 haproxy_unblock_signals();
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003315 run_thread_poll_loop((int []){0});
Christopher Faulet62519022017-10-16 15:49:32 +02003316
Christopher Faulet62519022017-10-16 15:49:32 +02003317#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003318
3319 /* Do some cleanup */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003320 deinit();
Christopher Faulet1d17c102017-08-29 15:38:48 +02003321
Willy Tarreaubaaee002006-06-26 02:48:02 +02003322 exit(0);
3323}
3324
3325
3326/*
3327 * Local variables:
3328 * c-indent-level: 8
3329 * c-basic-offset: 8
3330 * End:
3331 */