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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau65e94d12018-08-02 18:12:50 +02003 * Copyright 2000-2018 Willy Tarreau <willy@haproxy.org>.
Willy Tarreaubaaee002006-06-26 02:48:02 +02004 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License
7 * as published by the Free Software Foundation; either version
8 * 2 of the License, or (at your option) any later version.
9 *
Lukas Tribus23953682017-04-28 13:24:30 +000010 * Please refer to RFC7230 - RFC7235 informations about HTTP protocol, and
11 * RFC6265 for informations about cookies usage. More generally, the IETF HTTP
Willy Tarreaubaaee002006-06-26 02:48:02 +020012 * Working Group's web site should be consulted for protocol related changes :
13 *
14 * http://ftp.ics.uci.edu/pub/ietf/http/
15 *
16 * Pending bugs (may be not fixed because never reproduced) :
17 * - solaris only : sometimes, an HTTP proxy with only a dispatch address causes
18 * the proxy to terminate (no core) if the client breaks the connection during
19 * the response. Seen on 1.1.8pre4, but never reproduced. May not be related to
20 * the snprintf() bug since requests were simple (GET / HTTP/1.0), but may be
21 * related to missing setsid() (fixed in 1.1.15)
22 * - a proxy with an invalid config will prevent the startup even if disabled.
23 *
24 * ChangeLog has moved to the CHANGELOG file.
25 *
Willy Tarreaubaaee002006-06-26 02:48:02 +020026 */
27
David Carlier7ece0962015-12-08 21:43:09 +000028#define _GNU_SOURCE
Willy Tarreaubaaee002006-06-26 02:48:02 +020029#include <stdio.h>
30#include <stdlib.h>
31#include <unistd.h>
32#include <string.h>
33#include <ctype.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020034#include <dirent.h>
Maxime de Roucy379d9c72016-05-13 23:52:56 +020035#include <sys/stat.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020036#include <sys/time.h>
37#include <sys/types.h>
38#include <sys/socket.h>
39#include <netinet/tcp.h>
40#include <netinet/in.h>
41#include <arpa/inet.h>
Olivier Houchardf73629d2017-04-05 22:33:04 +020042#include <net/if.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020043#include <netdb.h>
44#include <fcntl.h>
45#include <errno.h>
46#include <signal.h>
47#include <stdarg.h>
48#include <sys/resource.h>
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +010049#include <sys/wait.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020050#include <time.h>
51#include <syslog.h>
Michael Schererab012dd2013-01-12 18:35:19 +010052#include <grp.h>
Willy Tarreaufc6c0322012-11-16 16:12:27 +010053#ifdef USE_CPU_AFFINITY
Willy Tarreaufc6c0322012-11-16 16:12:27 +010054#include <sched.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000055#if defined(__FreeBSD__) || defined(__DragonFly__)
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020056#include <sys/param.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000057#ifdef __FreeBSD__
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020058#include <sys/cpuset.h>
David Carlier42d9e5a2018-11-12 16:22:19 +000059#endif
David Carlier6d5c8412017-11-29 11:02:32 +000060#include <pthread_np.h>
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020061#endif
Willy Tarreaufc6c0322012-11-16 16:12:27 +010062#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020063
64#ifdef DEBUG_FULL
65#include <assert.h>
66#endif
Tim Duesterhusd6942c82017-11-20 15:58:35 +010067#if defined(USE_SYSTEMD)
68#include <systemd/sd-daemon.h>
69#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020070
Willy Tarreau2dd0d472006-06-29 17:53:05 +020071#include <common/base64.h>
72#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020073#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020074#include <common/compat.h>
75#include <common/config.h>
76#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010077#include <common/errors.h>
Willy Tarreau5794fb02018-11-25 18:43:29 +010078#include <common/initcall.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020079#include <common/memory.h>
80#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010081#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020082#include <common/regex.h>
83#include <common/standard.h>
84#include <common/time.h>
85#include <common/uri_auth.h>
86#include <common/version.h>
Christopher Fauletbe0faa22017-08-29 15:37:10 +020087#include <common/hathreads.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020088
89#include <types/capture.h>
William Lallemandce83b4a2018-10-26 14:47:30 +020090#include <types/cli.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020091#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020092#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090093#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020094#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020095
Willy Tarreau0fc45a72007-06-17 00:36:03 +020096#include <proto/acl.h>
Willy Tarreau609aad92018-11-22 08:31:09 +010097#include <proto/activity.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020098#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020099#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200100#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +0200101#include <proto/channel.h>
William Lallemandce83b4a2018-10-26 14:47:30 +0200102#include <proto/cli.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200103#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200104#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +0200105#include <proto/filters.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +0200106#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100107#include <proto/hlua.h>
Willy Tarreau61c112a2018-10-02 16:43:32 +0200108#include <proto/http_rules.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200109#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200110#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100111#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200112#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +0100113#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200114#include <proto/proxy.h>
115#include <proto/queue.h>
116#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200117#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200118#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200119#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200120#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200121#include <proto/dns.h>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100122#include <proto/vars.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200123#ifdef USE_OPENSSL
Grant Zhang872f9c22017-01-21 01:10:18 +0000124#include <proto/ssl_sock.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200125#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200126
Willy Tarreau477ecd82010-01-03 21:12:30 +0100127/* list of config files */
128static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200129int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100130int relative_pid = 1; /* process id starting at 1 */
Willy Tarreau387bd4f2017-11-10 19:08:14 +0100131unsigned long pid_bit = 1; /* bit corresponding to the process id */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200132
Olivier Houchard79321b92018-07-26 17:55:11 +0200133volatile unsigned long sleeping_thread_mask; /* Threads that are about to sleep in poll() */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200134/* global options */
135struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100136 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100137 .nbproc = 1,
Christopher Fauletbe0faa22017-08-29 15:37:10 +0200138 .nbthread = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200139 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200140 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100141 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100142 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100143 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200144 .unix_bind = {
145 .ux = {
146 .uid = -1,
147 .gid = -1,
148 .mode = 0,
149 }
150 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200151 .tune = {
Willy Tarreauc77d3642018-12-12 06:19:42 +0100152 .bufsize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Willy Tarreau27097842015-09-28 13:53:23 +0200153 .maxrewrite = -1,
Willy Tarreauc77d3642018-12-12 06:19:42 +0100154 .chksize = (BUFSIZE + 2*sizeof(void *) - 1) & -(2*sizeof(void *)),
Willy Tarreaua24adf02014-11-27 01:11:56 +0100155 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200156 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200157#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100158 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200159#endif
William Lallemandf3747832012-11-09 12:33:10 +0100160 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100161#ifdef DEFAULT_IDLE_TIMER
162 .idle_timer = DEFAULT_IDLE_TIMER,
163#else
164 .idle_timer = 1000, /* 1 second */
165#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200166 },
Emeric Brun76d88952012-10-05 15:47:31 +0200167#ifdef USE_OPENSSL
168#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200169 .maxsslconn = DEFAULT_MAXSSLCONN,
170#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200171#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200172 /* others NULL OK */
173};
174
175/*********************************************************************/
176
177int stopping; /* non zero means stopping in progress */
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100178int killed; /* non zero means a hard-stop is triggered */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200179int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
William Lallemanda7199262018-11-16 16:57:20 +0100180int unstoppable_jobs = 0; /* number of active jobs that can't be stopped during a soft stop */
Willy Tarreau199ad242018-11-05 16:31:22 +0100181int active_peers = 0; /* number of active peers (connection attempts and connected) */
Willy Tarreau2d372c22018-11-05 17:12:27 +0100182int connected_peers = 0; /* number of connected peers (verified ones) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200183
184/* Here we store informations about the pids of the processes we may pause
185 * or kill. We will send them a signal every 10 ms until we can bind to all
186 * our ports. With 200 retries, that's about 2 seconds.
187 */
188#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200189static int *oldpids = NULL;
190static int oldpids_sig; /* use USR1 or TERM */
191
Olivier Houchardf73629d2017-04-05 22:33:04 +0200192/* Path to the unix socket we use to retrieve listener sockets from the old process */
193static const char *old_unixsocket;
194
William Lallemand85b0bd92017-06-01 17:38:53 +0200195static char *cur_unixsocket = NULL;
196
William Lallemandcb11fd22017-06-01 17:38:52 +0200197int atexit_flag = 0;
198
William Lallemand91723742018-11-06 17:37:14 +0100199static int exitcode = -1;
200
Willy Tarreaubb545b42010-08-25 12:58:59 +0200201int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200202const int zero = 0;
203const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200204const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200205
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100206char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200207char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200208
Willy Tarreau89efaed2013-12-13 15:14:55 +0100209/* used from everywhere just to drain results we don't want to read and which
210 * recent versions of gcc increasingly and annoyingly complain about.
211 */
212int shut_your_big_mouth_gcc_int = 0;
213
William Lallemand73b85e72017-06-01 17:38:51 +0200214int *children = NULL; /* store PIDs of children in master workers mode */
215
William Lallemand73b85e72017-06-01 17:38:51 +0200216static char **next_argv = NULL;
217
William Lallemandbc193052018-09-11 10:06:26 +0200218struct list proc_list = LIST_HEAD_INIT(proc_list);
219
220int master = 0; /* 1 if in master, 0 if in child */
221
William Lallemand16dd1b32018-11-19 18:46:18 +0100222struct mworker_proc *proc_self = NULL;
William Lallemandbc193052018-09-11 10:06:26 +0200223
Willy Tarreau08ceb102011-07-24 22:58:00 +0200224/* list of the temporarily limited listeners because of lack of resource */
225struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200226struct task *global_listener_queue_task;
Olivier Houchard9f6af332018-05-25 14:04:04 +0200227static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200228
William Lallemandb3f2be32018-09-11 10:06:18 +0200229static void *run_thread_poll_loop(void *data);
230
Willy Tarreauff055502014-04-28 22:27:06 +0200231/* bitfield of a few warnings to emit just once (WARN_*) */
232unsigned int warned = 0;
233
William Lallemande7361152018-10-26 14:47:36 +0200234/* master CLI configuration (-S flag) */
235struct list mworker_cli_conf = LIST_HEAD_INIT(mworker_cli_conf);
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100236
237/* These are strings to be reported in the output of "haproxy -vv". They may
238 * either be constants (in which case must_free must be zero) or dynamically
239 * allocated strings to pass to free() on exit, and in this case must_free
240 * must be non-zero.
241 */
242struct list build_opts_list = LIST_HEAD_INIT(build_opts_list);
243struct build_opts_str {
244 struct list list;
245 const char *str;
246 int must_free;
247};
248
Willy Tarreaue6945732016-12-21 19:57:00 +0100249/* These functions are called just after the point where the program exits
250 * after a config validity check, so they are generally suited for resource
251 * allocation and slow initializations that should be skipped during basic
252 * config checks. The functions must return 0 on success, or a combination
253 * of ERR_* flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause
254 * and immediate exit, so the function must have emitted any useful error.
255 */
256struct list post_check_list = LIST_HEAD_INIT(post_check_list);
257struct post_check_fct {
258 struct list list;
259 int (*fct)();
260};
261
Willy Tarreau05554e62016-12-21 20:46:26 +0100262/* These functions are called when freeing the global sections at the end
263 * of deinit, after everything is stopped. They don't return anything, and
264 * they work in best effort mode as their sole goal is to make valgrind
265 * mostly happy.
266 */
267struct list post_deinit_list = LIST_HEAD_INIT(post_deinit_list);
268struct post_deinit_fct {
269 struct list list;
270 void (*fct)();
271};
272
Christopher Faulet415f6112017-07-25 16:52:58 +0200273/* These functions are called for each thread just after the thread creation
274 * and before running the scheduler. They should be used to do per-thread
275 * initializations. They must return 0 if an error occurred. */
276struct list per_thread_init_list = LIST_HEAD_INIT(per_thread_init_list);
277struct per_thread_init_fct {
278 struct list list;
279 int (*fct)();
280};
281
282/* These functions are called for each thread just after the scheduler loop and
283 * before exiting the thread. They don't return anything and, as for post-deinit
284 * functions, they work in best effort mode as their sole goal is to make
285 * valgrind mostly happy. */
286struct list per_thread_deinit_list = LIST_HEAD_INIT(per_thread_deinit_list);
287struct per_thread_deinit_fct {
288 struct list list;
289 void (*fct)();
290};
291
Willy Tarreaubaaee002006-06-26 02:48:02 +0200292/*********************************************************************/
293/* general purpose functions ***************************************/
294/*********************************************************************/
295
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100296/* used to register some build option strings at boot. Set must_free to
297 * non-zero if the string must be freed upon exit.
298 */
299void hap_register_build_opts(const char *str, int must_free)
300{
301 struct build_opts_str *b;
302
303 b = calloc(1, sizeof(*b));
304 if (!b) {
305 fprintf(stderr, "out of memory\n");
306 exit(1);
307 }
308 b->str = str;
309 b->must_free = must_free;
310 LIST_ADDQ(&build_opts_list, &b->list);
311}
312
Willy Tarreaue6945732016-12-21 19:57:00 +0100313/* used to register some initialization functions to call after the checks. */
314void hap_register_post_check(int (*fct)())
315{
316 struct post_check_fct *b;
317
318 b = calloc(1, sizeof(*b));
319 if (!b) {
320 fprintf(stderr, "out of memory\n");
321 exit(1);
322 }
323 b->fct = fct;
324 LIST_ADDQ(&post_check_list, &b->list);
325}
326
Willy Tarreau05554e62016-12-21 20:46:26 +0100327/* used to register some de-initialization functions to call after everything
328 * has stopped.
329 */
330void hap_register_post_deinit(void (*fct)())
331{
332 struct post_deinit_fct *b;
333
334 b = calloc(1, sizeof(*b));
335 if (!b) {
336 fprintf(stderr, "out of memory\n");
337 exit(1);
338 }
339 b->fct = fct;
340 LIST_ADDQ(&post_deinit_list, &b->list);
341}
342
Christopher Faulet415f6112017-07-25 16:52:58 +0200343/* used to register some initialization functions to call for each thread. */
344void hap_register_per_thread_init(int (*fct)())
345{
346 struct per_thread_init_fct *b;
347
348 b = calloc(1, sizeof(*b));
349 if (!b) {
350 fprintf(stderr, "out of memory\n");
351 exit(1);
352 }
353 b->fct = fct;
354 LIST_ADDQ(&per_thread_init_list, &b->list);
355}
356
357/* used to register some de-initialization functions to call for each thread. */
358void hap_register_per_thread_deinit(void (*fct)())
359{
360 struct per_thread_deinit_fct *b;
361
362 b = calloc(1, sizeof(*b));
363 if (!b) {
364 fprintf(stderr, "out of memory\n");
365 exit(1);
366 }
367 b->fct = fct;
368 LIST_ADDQ(&per_thread_deinit_list, &b->list);
369}
370
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100371static void display_version()
Willy Tarreaubaaee002006-06-26 02:48:02 +0200372{
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 Lallemand2fd45fa2018-12-03 20:34:44 +0100626 int listen_in_master = 0;
627
William Lallemand75ea0a02017-11-15 19:02:58 +0100628 list_for_each_entry_safe(l, l_next, &curproxy->conf.listeners, by_fe) {
William Lallemande22f11f2018-09-11 10:06:27 +0200629 /* remove the listener, but not those we need in the master... */
William Lallemanddd319a52018-10-12 10:39:54 +0200630 if (!(l->options & LI_O_MWORKER)) {
631 /* unbind the listener but does not close if
632 the FD is inherited with fd@ from the parent
633 process */
634 if (l->options & LI_O_INHERITED)
635 unbind_listener_no_close(l);
636 else
637 unbind_listener(l);
William Lallemande22f11f2018-09-11 10:06:27 +0200638 delete_listener(l);
William Lallemand2fd45fa2018-12-03 20:34:44 +0100639 } else {
640 listen_in_master = 1;
William Lallemanddd319a52018-10-12 10:39:54 +0200641 }
William Lallemand75ea0a02017-11-15 19:02:58 +0100642 }
William Lallemand2fd45fa2018-12-03 20:34:44 +0100643 /* if the proxy shouldn't be in the master, we stop it */
644 if (!listen_in_master)
645 curproxy->state = PR_STSTOPPED;
William Lallemand75ea0a02017-11-15 19:02:58 +0100646 }
647}
648
649
650/*
William Lallemand73b85e72017-06-01 17:38:51 +0200651 * remove a pid forom the olpid array and decrease nb_oldpids
652 * return 1 pid was found otherwise return 0
653 */
654
655int delete_oldpid(int pid)
656{
657 int i;
658
659 for (i = 0; i < nb_oldpids; i++) {
660 if (oldpids[i] == pid) {
661 oldpids[i] = oldpids[nb_oldpids - 1];
662 oldpids[nb_oldpids - 1] = 0;
663 nb_oldpids--;
664 return 1;
665 }
666 }
667 return 0;
668}
669
William Lallemand85b0bd92017-06-01 17:38:53 +0200670
671static void get_cur_unixsocket()
672{
673 /* if -x was used, try to update the stat socket if not available anymore */
674 if (global.stats_fe) {
675 struct bind_conf *bind_conf;
676
677 /* pass through all stats socket */
678 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
679 struct listener *l;
680
681 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
682
683 if (l->addr.ss_family == AF_UNIX &&
684 (bind_conf->level & ACCESS_FD_LISTENERS)) {
685 const struct sockaddr_un *un;
686
687 un = (struct sockaddr_un *)&l->addr;
688 /* priority to old_unixsocket */
689 if (!cur_unixsocket) {
690 cur_unixsocket = strdup(un->sun_path);
691 } else {
692 if (old_unixsocket && !strcmp(un->sun_path, old_unixsocket)) {
693 free(cur_unixsocket);
694 cur_unixsocket = strdup(old_unixsocket);
695 return;
696 }
697 }
698 }
699 }
700 }
701 }
702 if (!cur_unixsocket && old_unixsocket)
703 cur_unixsocket = strdup(old_unixsocket);
704}
705
William Lallemand73b85e72017-06-01 17:38:51 +0200706/*
707 * When called, this function reexec haproxy with -sf followed by current
Joseph Herlant03420902018-11-15 10:41:50 -0800708 * children PIDs and possibly old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200709 */
710static void mworker_reload()
711{
712 int next_argc = 0;
713 int j;
714 char *msg = NULL;
William Lallemand7c756a82018-11-26 11:53:40 +0100715 struct per_thread_deinit_fct *ptdf;
William Lallemand73b85e72017-06-01 17:38:51 +0200716
717 mworker_block_signals();
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100718#if defined(USE_SYSTEMD)
719 if (global.tune.options & GTUNE_USE_SYSTEMD)
720 sd_notify(0, "RELOADING=1");
721#endif
William Lallemand73b85e72017-06-01 17:38:51 +0200722 setenv("HAPROXY_MWORKER_REEXEC", "1", 1);
723
William Lallemandbc193052018-09-11 10:06:26 +0200724 mworker_proc_list_to_env(); /* put the children description in the env */
725
William Lallemand7c756a82018-11-26 11:53:40 +0100726 /* during the reload we must ensure that every FDs that can't be
727 * reuse (ie those that are not referenced in the proc_list)
728 * are closed or they will leak. */
729
730 /* close the listeners FD */
731 mworker_cli_proxy_stop();
732 /* close the poller FD and the thread waker pipe FD */
733 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
734 ptdf->fct();
735 if (fdtab)
736 deinit_pollers();
737
William Lallemand73b85e72017-06-01 17:38:51 +0200738 /* compute length */
739 while (next_argv[next_argc])
740 next_argc++;
741
William Lallemand85b0bd92017-06-01 17:38:53 +0200742 /* 1 for haproxy -sf, 2 for -x /socket */
743 next_argv = realloc(next_argv, (next_argc + 1 + 2 + global.nbproc + nb_oldpids + 1) * sizeof(char *));
William Lallemand73b85e72017-06-01 17:38:51 +0200744 if (next_argv == NULL)
745 goto alloc_error;
746
747
748 /* add -sf <PID>* to argv */
749 if (children || nb_oldpids > 0)
750 next_argv[next_argc++] = "-sf";
751 if (children) {
752 for (j = 0; j < global.nbproc; next_argc++,j++) {
753 next_argv[next_argc] = memprintf(&msg, "%d", children[j]);
754 if (next_argv[next_argc] == NULL)
755 goto alloc_error;
756 msg = NULL;
757 }
758 }
759 /* copy old process PIDs */
760 for (j = 0; j < nb_oldpids; next_argc++,j++) {
761 next_argv[next_argc] = memprintf(&msg, "%d", oldpids[j]);
762 if (next_argv[next_argc] == NULL)
763 goto alloc_error;
764 msg = NULL;
765 }
766 next_argv[next_argc] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200767
William Lallemand2bf6d622017-06-20 11:20:23 +0200768 /* add the -x option with the stat socket */
William Lallemand85b0bd92017-06-01 17:38:53 +0200769 if (cur_unixsocket) {
770
William Lallemand2bf6d622017-06-20 11:20:23 +0200771 next_argv[next_argc++] = "-x";
772 next_argv[next_argc++] = (char *)cur_unixsocket;
773 next_argv[next_argc++] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200774 }
775
Christopher Faulet767a84b2017-11-24 16:50:31 +0100776 ha_warning("Reexecuting Master process\n");
Tim Duesterhus0436ab72017-11-12 17:39:18 +0100777 execvp(next_argv[0], next_argv);
William Lallemand73b85e72017-06-01 17:38:51 +0200778
Christopher Faulet767a84b2017-11-24 16:50:31 +0100779 ha_warning("Failed to reexecute the master process [%d]: %s\n", pid, strerror(errno));
William Lallemand722d4ca2017-11-15 19:02:55 +0100780 return;
781
William Lallemand73b85e72017-06-01 17:38:51 +0200782alloc_error:
Joseph Herlant07a08342018-11-15 10:43:05 -0800783 ha_warning("Failed to reexecute the master process [%d]: Cannot allocate memory\n", pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200784 return;
785}
786
William Lallemand73b85e72017-06-01 17:38:51 +0200787/*
William Lallemandb3f2be32018-09-11 10:06:18 +0200788 * When called, this function reexec haproxy with -sf followed by current
Joseph Herlant03420902018-11-15 10:41:50 -0800789 * children PIDs and possibly old children PIDs if they didn't leave yet.
William Lallemand73b85e72017-06-01 17:38:51 +0200790 */
William Lallemandb3f2be32018-09-11 10:06:18 +0200791static void mworker_catch_sighup(struct sig_handler *sh)
William Lallemand73b85e72017-06-01 17:38:51 +0200792{
William Lallemandb3f2be32018-09-11 10:06:18 +0200793 mworker_reload();
794}
William Lallemand73b85e72017-06-01 17:38:51 +0200795
William Lallemandb3f2be32018-09-11 10:06:18 +0200796static void mworker_catch_sigterm(struct sig_handler *sh)
797{
798 int sig = sh->arg;
William Lallemand2f8b31c2017-11-15 19:02:56 +0100799
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100800#if defined(USE_SYSTEMD)
William Lallemandb3f2be32018-09-11 10:06:18 +0200801 if (global.tune.options & GTUNE_USE_SYSTEMD) {
802 sd_notify(0, "STOPPING=1");
803 }
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100804#endif
William Lallemandb3f2be32018-09-11 10:06:18 +0200805 ha_warning("Exiting Master process...\n");
806 mworker_kill(sig);
807}
William Lallemand73b85e72017-06-01 17:38:51 +0200808
William Lallemandb3f2be32018-09-11 10:06:18 +0200809/*
810 * Wait for every children to exit
811 */
William Lallemand73b85e72017-06-01 17:38:51 +0200812
William Lallemandb3f2be32018-09-11 10:06:18 +0200813static void mworker_catch_sigchld(struct sig_handler *sh)
814{
815 int exitpid = -1;
816 int status = 0;
William Lallemandbc193052018-09-11 10:06:26 +0200817 struct mworker_proc *child, *it;
William Lallemand73b85e72017-06-01 17:38:51 +0200818
William Lallemandb3f2be32018-09-11 10:06:18 +0200819restart_wait:
William Lallemand73b85e72017-06-01 17:38:51 +0200820
William Lallemandb3f2be32018-09-11 10:06:18 +0200821 exitpid = waitpid(-1, &status, WNOHANG);
822 if (exitpid > 0) {
William Lallemand73b85e72017-06-01 17:38:51 +0200823 if (WIFEXITED(status))
824 status = WEXITSTATUS(status);
825 else if (WIFSIGNALED(status))
826 status = 128 + WTERMSIG(status);
827 else if (WIFSTOPPED(status))
828 status = 128 + WSTOPSIG(status);
829 else
830 status = 255;
831
William Lallemandbc193052018-09-11 10:06:26 +0200832 list_for_each_entry_safe(child, it, &proc_list, list) {
833 if (child->pid != exitpid)
834 continue;
835
836 LIST_DEL(&child->list);
837 close(child->ipc_fd[0]);
William Lallemandbc193052018-09-11 10:06:26 +0200838 break;
839 }
840
William Lallemand73b85e72017-06-01 17:38:51 +0200841 if (!children) {
William Lallemand18e52a82018-11-06 17:37:13 +0100842 ha_warning("Worker %d exited with code %d (%s)\n", exitpid, status, (status >= 128) ? strsignal(status - 128) : "Exit");
William Lallemand73b85e72017-06-01 17:38:51 +0200843 } else {
844 /* check if exited child was in the current children list */
845 if (current_child(exitpid)) {
William Lallemand18e52a82018-11-06 17:37:13 +0100846 ha_alert("Current worker #%d (%d) exited with code %d (%s)\n", child->relative_pid, exitpid, status, (status >= 128) ? strsignal(status - 128) : "Exit");
William Lallemand69f9b3b2017-06-01 17:38:54 +0200847 if (status != 0 && status != 130 && status != 143
William Lallemand4cfede82017-11-24 22:02:34 +0100848 && !(global.tune.options & GTUNE_NOEXIT_ONFAILURE)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100849 ha_alert("exit-on-failure: killing every workers with SIGTERM\n");
William Lallemand91723742018-11-06 17:37:14 +0100850 if (exitcode < 0)
851 exitcode = status;
William Lallemand69f9b3b2017-06-01 17:38:54 +0200852 mworker_kill(SIGTERM);
853 }
William Lallemand73b85e72017-06-01 17:38:51 +0200854 } else {
William Lallemand18e52a82018-11-06 17:37:13 +0100855 ha_warning("Former worker #%d (%d) exited with code %d (%s)\n", child->relative_pid, exitpid, status, (status >= 128) ? strsignal(status - 128) : "Exit");
William Lallemand73b85e72017-06-01 17:38:51 +0200856 delete_oldpid(exitpid);
857 }
858 }
William Lallemand18e52a82018-11-06 17:37:13 +0100859 free(child);
860
William Lallemandb3f2be32018-09-11 10:06:18 +0200861 /* do it again to check if it was the last worker */
862 goto restart_wait;
William Lallemand73b85e72017-06-01 17:38:51 +0200863 }
William Lallemandb3f2be32018-09-11 10:06:18 +0200864 /* Better rely on the system than on a list of process to check if it was the last one */
865 else if (exitpid == -1 && errno == ECHILD) {
William Lallemand18e52a82018-11-06 17:37:13 +0100866 ha_warning("All workers exited. Exiting... (%d)\n", (exitcode > 0) ? exitcode : status);
William Lallemandb3f2be32018-09-11 10:06:18 +0200867 atexit_flag = 0;
William Lallemand91723742018-11-06 17:37:14 +0100868 if (exitcode > 0)
869 exit(exitcode);
William Lallemandb3f2be32018-09-11 10:06:18 +0200870 exit(status); /* parent must leave using the latest status code known */
871 }
872
William Lallemand73b85e72017-06-01 17:38:51 +0200873}
874
William Lallemandb3f2be32018-09-11 10:06:18 +0200875static void mworker_loop()
876{
877
878#if defined(USE_SYSTEMD)
879 if (global.tune.options & GTUNE_USE_SYSTEMD)
880 sd_notifyf(0, "READY=1\nMAINPID=%lu", (unsigned long)getpid());
881#endif
882
William Lallemandbc193052018-09-11 10:06:26 +0200883 master = 1;
884
William Lallemand0564d412018-11-20 17:36:53 +0100885 signal_unregister(SIGUSR1);
886 signal_unregister(SIGHUP);
887 signal_unregister(SIGQUIT);
888
William Lallemandb3f2be32018-09-11 10:06:18 +0200889 signal_register_fct(SIGTERM, mworker_catch_sigterm, SIGTERM);
890 signal_register_fct(SIGUSR1, mworker_catch_sigterm, SIGUSR1);
891 signal_register_fct(SIGINT, mworker_catch_sigterm, SIGINT);
892 signal_register_fct(SIGHUP, mworker_catch_sighup, SIGHUP);
893 signal_register_fct(SIGUSR2, mworker_catch_sighup, SIGUSR2);
894 signal_register_fct(SIGCHLD, mworker_catch_sigchld, SIGCHLD);
895
896 mworker_unblock_signals();
897 mworker_cleanlisteners();
William Lallemand27f3fa52018-12-06 14:05:20 +0100898 mworker_cleantasks();
William Lallemandb3f2be32018-09-11 10:06:18 +0200899
William Lallemandbc193052018-09-11 10:06:26 +0200900 mworker_catch_sigchld(NULL); /* ensure we clean the children in case
901 some SIGCHLD were lost */
902
William Lallemandb3f2be32018-09-11 10:06:18 +0200903 global.nbthread = 1;
904 relative_pid = 1;
905 pid_bit = 1;
906
907 jobs++; /* this is the "master" job, we want to take care of the
908 signals even if there is no listener so the poll loop don't
909 leave */
910
911 fork_poller();
912 run_thread_poll_loop((int []){0});
913}
William Lallemandcb11fd22017-06-01 17:38:52 +0200914
915/*
916 * Reexec the process in failure mode, instead of exiting
917 */
918void reexec_on_failure()
919{
920 if (!atexit_flag)
921 return;
922
923 setenv("HAPROXY_MWORKER_WAIT_ONLY", "1", 1);
924
Christopher Faulet767a84b2017-11-24 16:50:31 +0100925 ha_warning("Reexecuting Master process in waitpid mode\n");
William Lallemandcb11fd22017-06-01 17:38:52 +0200926 mworker_reload();
William Lallemandcb11fd22017-06-01 17:38:52 +0200927}
William Lallemand73b85e72017-06-01 17:38:51 +0200928
929
930/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200931 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
932 * a signal zero to all subscribers. This means that it's as easy as
933 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200934 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100935static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200936{
937 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200938 signal_unregister_handler(sh);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100939 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200940}
941
942/*
943 * upon SIGTTOU, we pause everything
944 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100945static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200946{
947 pause_proxies();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100948 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200949}
950
951/*
952 * upon SIGTTIN, let's have a soft stop.
953 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100954static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200955{
Willy Tarreaube58c382011-07-24 18:28:10 +0200956 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200957}
958
959/*
960 * this function dumps every server's state when the process receives SIGHUP.
961 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100962static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200963{
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100964 struct proxy *p = proxies_list;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200965
Christopher Faulet767a84b2017-11-24 16:50:31 +0100966 ha_warning("SIGHUP received, dumping servers states.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200967 while (p) {
968 struct server *s = p->srv;
969
970 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
971 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100972 chunk_printf(&trash,
973 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
974 p->id, s->id,
Emeric Brun52a91d32017-08-31 14:41:55 +0200975 (s->cur_state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100976 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200977 ha_warning("%s\n", trash.area);
978 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200979 s = s->next;
980 }
981
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200982 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
983 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100984 chunk_printf(&trash,
985 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
986 p->id,
987 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 +0200988 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100989 chunk_printf(&trash,
990 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
991 p->id,
992 (p->srv_bck) ? "is running on backup servers" : "has no server available",
993 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 +0200994 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100995 chunk_printf(&trash,
996 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
997 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
998 p->id, p->srv_act, p->srv_bck,
999 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 +02001000 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +02001001 ha_warning("%s\n", trash.area);
1002 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001003
1004 p = p->next;
1005 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001006}
1007
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001008static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001009{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001010 /* dump memory usage then free everything possible */
1011 dump_pools();
Willy Tarreaubafbe012017-11-24 17:34:44 +01001012 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001013}
1014
William Lallemande1340412017-12-28 16:09:36 +01001015/*
1016 * This function dup2 the stdio FDs (0,1,2) with <fd>, then closes <fd>
1017 * If <fd> < 0, it opens /dev/null and use it to dup
1018 *
1019 * In the case of chrooting, you have to open /dev/null before the chroot, and
1020 * pass the <fd> to this function
1021 */
1022static void stdio_quiet(int fd)
1023{
1024 if (fd < 0)
1025 fd = open("/dev/null", O_RDWR, 0);
1026
1027 if (fd > -1) {
1028 fclose(stdin);
1029 fclose(stdout);
1030 fclose(stderr);
1031
1032 dup2(fd, 0);
1033 dup2(fd, 1);
1034 dup2(fd, 2);
1035 if (fd > 2)
1036 close(fd);
1037 return;
1038 }
1039
1040 ha_alert("Cannot open /dev/null\n");
1041 exit(EXIT_FAILURE);
1042}
1043
1044
Joseph Herlant03420902018-11-15 10:41:50 -08001045/* This function checks if cfg_cfgfiles contains directories.
1046 * If it finds one, it adds all the files (and only files) it contains
1047 * in cfg_cfgfiles in place of the directory (and removes the directory).
1048 * It adds the files in lexical order.
1049 * It adds only files with .cfg extension.
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001050 * It doesn't add files with name starting with '.'
1051 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001052static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001053{
1054 struct wordlist *wl, *wlb;
1055 char *err = NULL;
1056
1057 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1058 struct stat file_stat;
1059 struct dirent **dir_entries = NULL;
1060 int dir_entries_nb;
1061 int dir_entries_it;
1062
1063 if (stat(wl->s, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001064 ha_alert("Cannot open configuration file/directory %s : %s\n",
1065 wl->s,
1066 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001067 exit(1);
1068 }
1069
1070 if (!S_ISDIR(file_stat.st_mode))
1071 continue;
1072
1073 /* from this point wl->s is a directory */
1074
1075 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
1076 if (dir_entries_nb < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001077 ha_alert("Cannot open configuration directory %s : %s\n",
1078 wl->s,
1079 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001080 exit(1);
1081 }
1082
1083 /* for each element in the directory wl->s */
1084 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
1085 struct dirent *dir_entry = dir_entries[dir_entries_it];
1086 char *filename = NULL;
1087 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
1088
1089 /* don't add filename that begin with .
Joseph Herlant03420902018-11-15 10:41:50 -08001090 * only add filename with .cfg extension
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001091 */
1092 if (dir_entry->d_name[0] == '.' ||
1093 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
1094 goto next_dir_entry;
1095
1096 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001097 ha_alert("Cannot load configuration files %s : out of memory.\n",
1098 filename);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001099 exit(1);
1100 }
1101
1102 if (stat(filename, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001103 ha_alert("Cannot open configuration file %s : %s\n",
1104 wl->s,
1105 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001106 exit(1);
1107 }
1108
1109 /* don't add anything else than regular file in cfg_cfgfiles
1110 * this way we avoid loops
1111 */
1112 if (!S_ISREG(file_stat.st_mode))
1113 goto next_dir_entry;
1114
1115 if (!list_append_word(&wl->list, filename, &err)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001116 ha_alert("Cannot load configuration files %s : %s\n",
1117 filename,
1118 err);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001119 exit(1);
1120 }
1121
1122next_dir_entry:
1123 free(filename);
1124 free(dir_entry);
1125 }
1126
1127 free(dir_entries);
1128
1129 /* remove the current directory (wl) from cfg_cfgfiles */
1130 free(wl->s);
1131 LIST_DEL(&wl->list);
1132 free(wl);
1133 }
1134
1135 free(err);
1136}
1137
Olivier Houchardf73629d2017-04-05 22:33:04 +02001138static int get_old_sockets(const char *unixsocket)
1139{
1140 char *cmsgbuf = NULL, *tmpbuf = NULL;
1141 int *tmpfd = NULL;
1142 struct sockaddr_un addr;
1143 struct cmsghdr *cmsg;
1144 struct msghdr msghdr;
1145 struct iovec iov;
1146 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +02001147 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +02001148 int sock = -1;
1149 int ret = -1;
1150 int ret2 = -1;
1151 int fd_nb;
1152 int got_fd = 0;
1153 int i = 0;
1154 size_t maxoff = 0, curoff = 0;
1155
1156 memset(&msghdr, 0, sizeof(msghdr));
1157 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
1158 if (!cmsgbuf) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001159 ha_warning("Failed to allocate memory to send sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001160 goto out;
1161 }
1162 sock = socket(PF_UNIX, SOCK_STREAM, 0);
1163 if (sock < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001164 ha_warning("Failed to connect to the old process socket '%s'\n",
1165 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001166 goto out;
1167 }
1168 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path));
1169 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
1170 addr.sun_family = PF_UNIX;
1171 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
1172 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001173 ha_warning("Failed to connect to the old process socket '%s'\n",
1174 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001175 goto out;
1176 }
Olivier Houchard54740872017-04-06 14:45:14 +02001177 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001178 iov.iov_base = &fd_nb;
1179 iov.iov_len = sizeof(fd_nb);
1180 msghdr.msg_iov = &iov;
1181 msghdr.msg_iovlen = 1;
1182 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
1183 /* First, get the number of file descriptors to be received */
1184 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001185 ha_warning("Failed to get the number of sockets to be transferred !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001186 goto out;
1187 }
1188 if (fd_nb == 0) {
1189 ret = 0;
1190 goto out;
1191 }
Olivier Houchardf143b802017-11-04 15:13:01 +01001192 tmpbuf = malloc(fd_nb * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int)));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001193 if (tmpbuf == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001194 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001195 goto out;
1196 }
1197 tmpfd = malloc(fd_nb * sizeof(int));
1198 if (tmpfd == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001199 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001200 goto out;
1201 }
1202 msghdr.msg_control = cmsgbuf;
1203 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
Olivier Houchardf143b802017-11-04 15:13:01 +01001204 iov.iov_len = MAX_SEND_FD * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001205 do {
1206 int ret3;
1207
1208 iov.iov_base = tmpbuf + curoff;
1209 ret = recvmsg(sock, &msghdr, 0);
1210 if (ret == -1 && errno == EINTR)
1211 continue;
1212 if (ret <= 0)
1213 break;
1214 /* Send an ack to let the sender know we got the sockets
1215 * and it can send some more
1216 */
1217 do {
1218 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
1219 } while (ret3 == -1 && errno == EINTR);
1220 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
1221 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
1222 if (cmsg->cmsg_level == SOL_SOCKET &&
1223 cmsg->cmsg_type == SCM_RIGHTS) {
1224 size_t totlen = cmsg->cmsg_len -
1225 CMSG_LEN(0);
1226 if (totlen / sizeof(int) + got_fd > fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001227 ha_warning("Got to many sockets !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001228 goto out;
1229 }
1230 /*
1231 * Be paranoid and use memcpy() to avoid any
1232 * potential alignement issue.
1233 */
1234 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
1235 got_fd += totlen / sizeof(int);
1236 }
1237 }
1238 curoff += ret;
1239 } while (got_fd < fd_nb);
1240
1241 if (got_fd != fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001242 ha_warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
1243 fd_nb, got_fd);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001244 goto out;
1245 }
1246 maxoff = curoff;
1247 curoff = 0;
1248 for (i = 0; i < got_fd; i++) {
1249 int fd = tmpfd[i];
1250 socklen_t socklen;
1251 int len;
1252
1253 xfer_sock = calloc(1, sizeof(*xfer_sock));
1254 if (!xfer_sock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001255 ha_warning("Failed to allocate memory in get_old_sockets() !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001256 break;
1257 }
1258 xfer_sock->fd = -1;
1259
1260 socklen = sizeof(xfer_sock->addr);
1261 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001262 ha_warning("Failed to get socket address\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001263 free(xfer_sock);
Olivier Houchardbe7b1ce2017-07-17 17:25:33 +02001264 xfer_sock = NULL;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001265 continue;
1266 }
1267 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001268 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001269 goto out;
1270 }
1271 len = tmpbuf[curoff++];
1272 if (len > 0) {
1273 /* We have a namespace */
1274 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001275 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001276 goto out;
1277 }
1278 xfer_sock->namespace = malloc(len + 1);
1279 if (!xfer_sock->namespace) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001280 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001281 goto out;
1282 }
1283 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
1284 xfer_sock->namespace[len] = 0;
1285 curoff += len;
1286 }
1287 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001288 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001289 goto out;
1290 }
1291 len = tmpbuf[curoff++];
1292 if (len > 0) {
1293 /* We have an interface */
1294 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001295 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001296 goto out;
1297 }
1298 xfer_sock->iface = malloc(len + 1);
1299 if (!xfer_sock->iface) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001300 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001301 goto out;
1302 }
1303 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
Olivier Houchard33e083c2018-03-15 17:48:49 +01001304 xfer_sock->iface[len] = 0;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001305 curoff += len;
1306 }
1307 if (curoff + sizeof(int) > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001308 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001309 goto out;
1310 }
1311 memcpy(&xfer_sock->options, &tmpbuf[curoff],
1312 sizeof(xfer_sock->options));
1313 curoff += sizeof(xfer_sock->options);
1314
1315 xfer_sock->fd = fd;
1316 if (xfer_sock_list)
1317 xfer_sock_list->prev = xfer_sock;
1318 xfer_sock->next = xfer_sock_list;
1319 xfer_sock->prev = NULL;
1320 xfer_sock_list = xfer_sock;
1321 xfer_sock = NULL;
1322 }
1323
1324 ret2 = 0;
1325out:
1326 /* If we failed midway make sure to close the remaining
1327 * file descriptors
1328 */
1329 if (tmpfd != NULL && i < got_fd) {
1330 for (; i < got_fd; i++) {
1331 close(tmpfd[i]);
1332 }
1333 }
1334 free(tmpbuf);
1335 free(tmpfd);
1336 free(cmsgbuf);
1337 if (sock != -1)
1338 close(sock);
1339 if (xfer_sock) {
1340 free(xfer_sock->namespace);
1341 free(xfer_sock->iface);
1342 if (xfer_sock->fd != -1)
1343 close(xfer_sock->fd);
1344 free(xfer_sock);
1345 }
1346 return (ret2);
1347}
1348
Willy Tarreaubaaee002006-06-26 02:48:02 +02001349/*
William Lallemand73b85e72017-06-01 17:38:51 +02001350 * copy and cleanup the current argv
1351 * Remove the -sf /-st parameters
1352 * Return an allocated copy of argv
1353 */
1354
1355static char **copy_argv(int argc, char **argv)
1356{
1357 char **newargv;
William Lallemand2bf6d622017-06-20 11:20:23 +02001358 int i = 0, j = 0;
William Lallemand73b85e72017-06-01 17:38:51 +02001359
1360 newargv = calloc(argc + 2, sizeof(char *));
1361 if (newargv == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001362 ha_warning("Cannot allocate memory\n");
William Lallemand73b85e72017-06-01 17:38:51 +02001363 return NULL;
1364 }
1365
William Lallemand2bf6d622017-06-20 11:20:23 +02001366 while (i < argc) {
1367 /* -sf or -st or -x */
William Lallemand29f690c2018-01-09 23:12:27 +01001368 if (i > 0 && argv[i][0] == '-' &&
1369 ((argv[i][1] == 's' && (argv[i][2] == 'f' || argv[i][2] == 't')) || argv[i][1] == 'x' )) {
William Lallemand2bf6d622017-06-20 11:20:23 +02001370 /* list of pids to finish ('f') or terminate ('t') or unix socket (-x) */
William Lallemand73b85e72017-06-01 17:38:51 +02001371 i++;
1372 while (i < argc && argv[i][0] != '-') {
1373 i++;
1374 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001375 continue;
William Lallemand73b85e72017-06-01 17:38:51 +02001376 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001377
1378 newargv[j++] = argv[i++];
William Lallemand73b85e72017-06-01 17:38:51 +02001379 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001380
William Lallemand73b85e72017-06-01 17:38:51 +02001381 return newargv;
1382}
1383
1384/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001385 * This function initializes all the necessary variables. It only returns
1386 * if everything is OK. If something fails, it exits.
1387 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001388static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001389{
Willy Tarreaubaaee002006-06-26 02:48:02 +02001390 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001391 char *tmp;
1392 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +02001393 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +02001394 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +01001395 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +00001396 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +02001397 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +02001398 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +01001399 struct post_check_fct *pcf;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001400
Christopher Faulete3a5e352017-10-24 13:53:54 +02001401 global.mode = MODE_STARTING;
William Lallemand73b85e72017-06-01 17:38:51 +02001402 next_argv = copy_argv(argc, argv);
1403
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001404 if (!init_trash_buffers(1)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001405 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet748919a2017-07-26 14:59:46 +02001406 exit(1);
1407 }
David du Colombier7af46052012-05-16 14:16:48 +02001408
Emeric Brun2b920a12010-09-23 18:30:22 +02001409 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
1410 * the string in case of truncation, and at least FreeBSD appears not to do
1411 * it.
1412 */
1413 memset(hostname, 0, sizeof(hostname));
1414 gethostname(hostname, sizeof(hostname) - 1);
1415 memset(localpeer, 0, sizeof(localpeer));
1416 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
William Lallemanddaf4cd22018-04-17 16:46:13 +02001417 setenv("HAPROXY_LOCALPEER", localpeer, 1);
Emeric Brun2b920a12010-09-23 18:30:22 +02001418
Willy Tarreaubaaee002006-06-26 02:48:02 +02001419 /*
1420 * Initialize the previously static variables.
1421 */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001422
Willy Tarreau173d9952018-01-26 21:48:23 +01001423 totalconn = actconn = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001424 killed = 0;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001425
Willy Tarreaubaaee002006-06-26 02:48:02 +02001426
1427#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +01001428 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001429#endif
1430
Benoit GARNIERb413c2a2016-03-27 11:08:03 +02001431 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001432 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001433 start_date = now;
1434
Willy Tarreau84310e22014-02-14 11:59:04 +01001435 srandom(now_ms - getpid());
1436
Willy Tarreau8ed669b2013-01-11 15:49:37 +01001437 if (init_acl() != 0)
1438 exit(1);
Willy Tarreaub6b3df32018-11-26 16:31:20 +01001439
Willy Tarreau8280d642009-09-23 23:37:52 +02001440 /* warning, we init buffers later */
Willy Tarreau04f1e2d2018-09-10 18:04:24 +02001441 if (!init_http(&err_msg)) {
1442 ha_alert("%s. Aborting.\n", err_msg);
1443 free(err_msg);
1444 abort();
1445 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001446
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001447 /* Initialise lua. */
1448 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001449
Christopher Fauletff2613e2016-11-09 11:36:17 +01001450 /* Initialize process vars */
1451 vars_init(&global.vars, SCOPE_PROC);
1452
Willy Tarreau43b78992009-01-25 15:42:27 +01001453 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001454#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001455 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001456#endif
1457#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001458 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001459#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001460#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +01001461 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001462#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001463#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001464 global.tune.options |= GTUNE_USE_SPLICE;
1465#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001466#if defined(USE_GETADDRINFO)
1467 global.tune.options |= GTUNE_USE_GAI;
1468#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001469#if defined(SO_REUSEPORT)
1470 global.tune.options |= GTUNE_USE_REUSEPORT;
1471#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001472
1473 pid = getpid();
1474 progname = *argv;
1475 while ((tmp = strchr(progname, '/')) != NULL)
1476 progname = tmp + 1;
1477
Kevinm48936af2010-12-22 16:08:21 +00001478 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +02001479 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +00001480
Willy Tarreaubaaee002006-06-26 02:48:02 +02001481 argc--; argv++;
1482 while (argc > 0) {
1483 char *flag;
1484
1485 if (**argv == '-') {
1486 flag = *argv+1;
1487
1488 /* 1 arg */
1489 if (*flag == 'v') {
1490 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +01001491 if (flag[1] == 'v') /* -vv */
1492 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001493 exit(0);
1494 }
1495#if defined(ENABLE_EPOLL)
1496 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +01001497 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001498#endif
1499#if defined(ENABLE_POLL)
1500 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +01001501 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001502#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +02001503#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001504 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +01001505 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001506#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001507#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001508 else if (*flag == 'd' && flag[1] == 'S')
1509 global.tune.options &= ~GTUNE_USE_SPLICE;
1510#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001511#if defined(USE_GETADDRINFO)
1512 else if (*flag == 'd' && flag[1] == 'G')
1513 global.tune.options &= ~GTUNE_USE_GAI;
1514#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001515#if defined(SO_REUSEPORT)
1516 else if (*flag == 'd' && flag[1] == 'R')
1517 global.tune.options &= ~GTUNE_USE_REUSEPORT;
1518#endif
Emeric Brun850efd52014-01-29 12:24:34 +01001519 else if (*flag == 'd' && flag[1] == 'V')
1520 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001521 else if (*flag == 'V')
1522 arg_mode |= MODE_VERBOSE;
1523 else if (*flag == 'd' && flag[1] == 'b')
1524 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +02001525 else if (*flag == 'd' && flag[1] == 'M')
1526 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +01001527 else if (*flag == 'd' && flag[1] == 'r')
1528 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001529 else if (*flag == 'd')
1530 arg_mode |= MODE_DEBUG;
1531 else if (*flag == 'c')
1532 arg_mode |= MODE_CHECK;
William Lallemand095ba4c2017-06-01 17:38:50 +02001533 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +02001534 arg_mode |= MODE_DAEMON;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001535 else if (*flag == 'W' && flag[1] == 's') {
Lukas Tribusf46bf952017-11-21 12:39:34 +01001536 arg_mode |= MODE_MWORKER | MODE_FOREGROUND;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001537#if defined(USE_SYSTEMD)
1538 global.tune.options |= GTUNE_USE_SYSTEMD;
1539#else
Christopher Faulet767a84b2017-11-24 16:50:31 +01001540 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 +01001541 usage(progname);
1542#endif
1543 }
William Lallemand095ba4c2017-06-01 17:38:50 +02001544 else if (*flag == 'W')
1545 arg_mode |= MODE_MWORKER;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001546 else if (*flag == 'q')
1547 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001548 else if (*flag == 'x') {
William Lallemand45eff442017-06-19 15:57:55 +02001549 if (argc <= 1 || argv[1][0] == '-') {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001550 ha_alert("Unix socket path expected with the -x flag\n\n");
William Lallemand45eff442017-06-19 15:57:55 +02001551 usage(progname);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001552 }
William Lallemand4fc09692017-06-19 16:37:19 +02001553 if (old_unixsocket)
Christopher Faulet767a84b2017-11-24 16:50:31 +01001554 ha_warning("-x option already set, overwriting the value\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001555 old_unixsocket = argv[1];
William Lallemand4fc09692017-06-19 16:37:19 +02001556
Olivier Houchardf73629d2017-04-05 22:33:04 +02001557 argv++;
1558 argc--;
1559 }
William Lallemande7361152018-10-26 14:47:36 +02001560 else if (*flag == 'S') {
1561 struct wordlist *c;
1562
1563 if (argc <= 1 || argv[1][0] == '-') {
1564 ha_alert("Socket and optional bind parameters expected with the -S flag\n");
1565 usage(progname);
1566 }
1567 if ((c = malloc(sizeof(*c))) == NULL || (c->s = strdup(argv[1])) == NULL) {
1568 ha_alert("Cannot allocate memory\n");
1569 exit(EXIT_FAILURE);
1570 }
1571 LIST_ADD(&mworker_cli_conf, &c->list);
1572
1573 argv++;
1574 argc--;
1575 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001576 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
1577 /* list of pids to finish ('f') or terminate ('t') */
1578
1579 if (flag[1] == 'f')
1580 oldpids_sig = SIGUSR1; /* finish then exit */
1581 else
1582 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001583 while (argc > 1 && argv[1][0] != '-') {
Chris Lane236062f2018-02-05 23:15:44 +00001584 char * endptr = NULL;
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001585 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
1586 if (!oldpids) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001587 ha_alert("Cannot allocate old pid : out of memory.\n");
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001588 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001589 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001590 argc--; argv++;
Chris Lane236062f2018-02-05 23:15:44 +00001591 errno = 0;
1592 oldpids[nb_oldpids] = strtol(*argv, &endptr, 10);
1593 if (errno) {
1594 ha_alert("-%2s option: failed to parse {%s}: %s\n",
1595 flag,
1596 *argv, strerror(errno));
1597 exit(1);
1598 } else if (endptr && strlen(endptr)) {
1599 while (isspace(*endptr)) endptr++;
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001600 if (*endptr != 0) {
Chris Lane236062f2018-02-05 23:15:44 +00001601 ha_alert("-%2s option: some bytes unconsumed in PID list {%s}\n",
1602 flag, endptr);
1603 exit(1);
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001604 }
Chris Lane236062f2018-02-05 23:15:44 +00001605 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001606 if (oldpids[nb_oldpids] <= 0)
1607 usage(progname);
1608 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001609 }
1610 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001611 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
1612 /* now that's a cfgfile list */
1613 argv++; argc--;
1614 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001615 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001616 ha_alert("Cannot load configuration file/directory %s : %s\n",
1617 *argv,
1618 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +02001619 exit(1);
1620 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001621 argv++; argc--;
1622 }
1623 break;
1624 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001625 else { /* >=2 args */
1626 argv++; argc--;
1627 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001628 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001629
1630 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +02001631 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001632 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +01001633 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001634 case 'N' : cfg_maxpconn = atol(*argv); break;
William Lallemanddaf4cd22018-04-17 16:46:13 +02001635 case 'L' :
1636 strncpy(localpeer, *argv, sizeof(localpeer) - 1);
1637 setenv("HAPROXY_LOCALPEER", localpeer, 1);
1638 break;
Willy Tarreau5d01a632009-06-22 16:02:30 +02001639 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +02001640 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001641 ha_alert("Cannot load configuration file/directory %s : %s\n",
1642 *argv,
1643 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +02001644 exit(1);
1645 }
Willy Tarreau5d01a632009-06-22 16:02:30 +02001646 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001647 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001648 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001649 }
1650 }
1651 }
1652 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001653 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001654 argv++; argc--;
1655 }
1656
Christopher Faulete3a5e352017-10-24 13:53:54 +02001657 global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
1658 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001659
William Lallemand944e6192018-11-21 15:48:31 +01001660 if (getenv("HAPROXY_MWORKER_WAIT_ONLY")) {
William Lallemandcb11fd22017-06-01 17:38:52 +02001661 unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
William Lallemand944e6192018-11-21 15:48:31 +01001662 global.mode |= MODE_MWORKER_WAIT;
1663 global.mode &= ~MODE_MWORKER;
William Lallemandcb11fd22017-06-01 17:38:52 +02001664 }
1665
1666 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") != NULL)) {
1667 atexit_flag = 1;
1668 atexit(reexec_on_failure);
1669 }
1670
Willy Tarreau576132e2011-09-10 19:26:56 +02001671 if (change_dir && chdir(change_dir) < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001672 ha_alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
Willy Tarreau576132e2011-09-10 19:26:56 +02001673 exit(1);
1674 }
1675
Willy Tarreaubaaee002006-06-26 02:48:02 +02001676 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001677
1678 init_default_instance();
1679
William Lallemand944e6192018-11-21 15:48:31 +01001680 /* in wait mode, we don't try to read the configuration files */
1681 if (!(global.mode & MODE_MWORKER_WAIT)) {
Willy Tarreauc4382422009-12-06 13:10:44 +01001682
William Lallemand944e6192018-11-21 15:48:31 +01001683 /* handle cfgfiles that are actually directories */
1684 cfgfiles_expand_directories();
1685
1686 if (LIST_ISEMPTY(&cfg_cfgfiles))
1687 usage(progname);
1688
1689
1690 list_for_each_entry(wl, &cfg_cfgfiles, list) {
1691 int ret;
1692
1693 ret = readcfgfile(wl->s);
1694 if (ret == -1) {
1695 ha_alert("Could not open configuration file %s : %s\n",
1696 wl->s, strerror(errno));
1697 exit(1);
1698 }
1699 if (ret & (ERR_ABORT|ERR_FATAL))
1700 ha_alert("Error(s) found in configuration file : %s\n", wl->s);
1701 err_code |= ret;
1702 if (err_code & ERR_ABORT)
1703 exit(1);
Willy Tarreauc4382422009-12-06 13:10:44 +01001704 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001705
William Lallemand944e6192018-11-21 15:48:31 +01001706 /* do not try to resolve arguments nor to spot inconsistencies when
1707 * the configuration contains fatal errors caused by files not found
1708 * or failed memory allocations.
1709 */
1710 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1711 ha_alert("Fatal errors found in configuration.\n");
1712 exit(1);
1713 }
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001714 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001715 if (global.mode & MODE_MWORKER) {
1716 int proc;
William Lallemand16dd1b32018-11-19 18:46:18 +01001717 struct mworker_proc *tmproc;
1718
1719 if (getenv("HAPROXY_MWORKER_REEXEC") == NULL) {
1720
1721 tmproc = malloc(sizeof(*tmproc));
1722 if (!tmproc) {
1723 ha_alert("Cannot allocate process structures.\n");
1724 exit(EXIT_FAILURE);
1725 }
1726 tmproc->type = 'm'; /* master */
1727 tmproc->reloads = 0;
1728 tmproc->relative_pid = 0;
1729 tmproc->pid = pid;
1730 tmproc->timestamp = start_date.tv_sec;
1731 tmproc->ipc_fd[0] = -1;
1732 tmproc->ipc_fd[1] = -1;
1733
1734 proc_self = tmproc;
1735
1736 LIST_ADDQ(&proc_list, &tmproc->list);
1737 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001738
1739 for (proc = 0; proc < global.nbproc; proc++) {
William Lallemandce83b4a2018-10-26 14:47:30 +02001740
1741 tmproc = malloc(sizeof(*tmproc));
1742 if (!tmproc) {
1743 ha_alert("Cannot allocate process structures.\n");
1744 exit(EXIT_FAILURE);
1745 }
1746
William Lallemand16dd1b32018-11-19 18:46:18 +01001747 tmproc->type = 'w'; /* worker */
William Lallemandce83b4a2018-10-26 14:47:30 +02001748 tmproc->pid = -1;
1749 tmproc->reloads = 0;
William Lallemande3683302018-11-19 18:46:17 +01001750 tmproc->timestamp = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001751 tmproc->relative_pid = 1 + proc;
William Lallemand550db6d2018-11-06 17:37:12 +01001752 tmproc->ipc_fd[0] = -1;
1753 tmproc->ipc_fd[1] = -1;
William Lallemandce83b4a2018-10-26 14:47:30 +02001754
1755 if (mworker_cli_sockpair_new(tmproc, proc) < 0) {
1756 exit(EXIT_FAILURE);
1757 }
1758
1759 LIST_ADDQ(&proc_list, &tmproc->list);
1760 }
William Lallemand944e6192018-11-21 15:48:31 +01001761 }
1762 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
1763 struct wordlist *it, *c;
1764
William Lallemand1b663612018-10-26 14:47:33 +02001765 mworker_env_to_proc_list(); /* get the info of the children in the env */
William Lallemand8a022572018-10-26 14:47:35 +02001766
William Lallemande7361152018-10-26 14:47:36 +02001767
William Lallemand550db6d2018-11-06 17:37:12 +01001768 if (!LIST_ISEMPTY(&mworker_cli_conf)) {
William Lallemande7361152018-10-26 14:47:36 +02001769
William Lallemand550db6d2018-11-06 17:37:12 +01001770 if (mworker_cli_proxy_create() < 0) {
William Lallemande7361152018-10-26 14:47:36 +02001771 ha_alert("Can't create the master's CLI.\n");
1772 exit(EXIT_FAILURE);
1773 }
William Lallemande7361152018-10-26 14:47:36 +02001774
William Lallemand550db6d2018-11-06 17:37:12 +01001775 list_for_each_entry_safe(c, it, &mworker_cli_conf, list) {
1776
1777 if (mworker_cli_proxy_new_listener(c->s) < 0) {
1778 ha_alert("Can't create the master's CLI.\n");
1779 exit(EXIT_FAILURE);
1780 }
1781 LIST_DEL(&c->list);
1782 free(c->s);
1783 free(c);
1784 }
1785 }
William Lallemandce83b4a2018-10-26 14:47:30 +02001786 }
1787
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +01001788 pattern_finalize_config();
1789
Willy Tarreaubb925012009-07-23 13:36:36 +02001790 err_code |= check_config_validity();
1791 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001792 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001793 exit(1);
1794 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001795
Willy Tarreau70060452015-12-14 12:46:07 +01001796 /* recompute the amount of per-process memory depending on nbproc and
1797 * the shared SSL cache size (allowed to exist in all processes).
1798 */
1799 if (global.rlimit_memmax_all) {
1800#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
1801 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
1802
1803 global.rlimit_memmax =
1804 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
1805 ssl_cache_bytes) / global.nbproc +
1806 ssl_cache_bytes + 1048575LL) / 1048576LL;
1807#else
1808 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
1809#endif
1810 }
1811
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001812#ifdef CONFIG_HAP_NS
1813 err_code |= netns_init();
1814 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001815 ha_alert("Failed to initialize namespace support.\n");
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001816 exit(1);
1817 }
1818#endif
1819
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001820 /* Apply server states */
1821 apply_server_state();
1822
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001823 for (px = proxies_list; px; px = px->next)
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001824 srv_compute_all_admin_states(px);
1825
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001826 /* Apply servers' configured address */
1827 err_code |= srv_init_addr();
1828 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001829 ha_alert("Failed to initialize server(s) addr.\n");
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001830 exit(1);
1831 }
1832
Willy Tarreaubaaee002006-06-26 02:48:02 +02001833 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001834 struct peers *pr;
1835 struct proxy *px;
1836
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001837 for (pr = cfg_peers; pr; pr = pr->next)
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001838 if (pr->peers_fe)
1839 break;
1840
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001841 for (px = proxies_list; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02001842 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001843 break;
1844
1845 if (pr || px) {
1846 /* At least one peer or one listener has been found */
1847 qfprintf(stdout, "Configuration file is valid\n");
1848 exit(0);
1849 }
1850 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
1851 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001852 }
1853
Emeric Brunc60def82017-09-27 14:59:38 +02001854 global_listener_queue_task = task_new(MAX_THREADS_MASK);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001855 if (!global_listener_queue_task) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001856 ha_alert("Out of memory when initializing global task\n");
Willy Tarreaue9b26022011-08-01 20:57:55 +02001857 exit(1);
1858 }
1859 /* very simple initialization, users will queue the task if needed */
1860 global_listener_queue_task->context = NULL; /* not even a context! */
1861 global_listener_queue_task->process = manage_global_listener_queue;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001862
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001863 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02001864 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02001865
Willy Tarreaue6945732016-12-21 19:57:00 +01001866 list_for_each_entry(pcf, &post_check_list, list) {
1867 err_code |= pcf->fct();
1868 if (err_code & (ERR_ABORT|ERR_FATAL))
1869 exit(1);
1870 }
1871
Willy Tarreaubaaee002006-06-26 02:48:02 +02001872 if (cfg_maxconn > 0)
1873 global.maxconn = cfg_maxconn;
1874
1875 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02001876 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001877 global.pidfile = strdup(cfg_pidfile);
1878 }
1879
Willy Tarreaud0256482015-01-15 21:45:22 +01001880 /* Now we want to compute the maxconn and possibly maxsslconn values.
1881 * It's a bit tricky. If memmax is not set, maxconn defaults to
1882 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
1883 *
1884 * If memmax is set, then it depends on which values are set. If
1885 * maxsslconn is set, we use memmax to determine how many cleartext
1886 * connections may be added, and set maxconn to the sum of the two.
1887 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1888 * the remaining amount of memory between memmax and the cleartext
1889 * connections. If neither are set, then it is considered that all
1890 * connections are SSL-capable, and maxconn is computed based on this,
1891 * then maxsslconn accordingly. We need to know if SSL is used on the
1892 * frontends, backends, or both, because when it's used on both sides,
1893 * we need twice the value for maxsslconn, but we only count the
1894 * handshake once since it is not performed on the two sides at the
1895 * same time (frontend-side is terminated before backend-side begins).
1896 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001897 * ssl_handshake_cost during its initialization. In any case, if
1898 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1899 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001900 */
1901 if (!global.rlimit_memmax) {
1902 if (global.maxconn == 0) {
1903 global.maxconn = DEFAULT_MAXCONN;
1904 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1905 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1906 }
1907 }
1908#ifdef USE_OPENSSL
1909 else if (!global.maxconn && !global.maxsslconn &&
1910 (global.ssl_used_frontend || global.ssl_used_backend)) {
1911 /* memmax is set, compute everything automatically. Here we want
1912 * to ensure that all SSL connections will be served. We take
1913 * care of the number of sides where SSL is used, and consider
1914 * the worst case : SSL used on both sides and doing a handshake
1915 * simultaneously. Note that we can't have more than maxconn
1916 * handshakes at a time by definition, so for the worst case of
1917 * two SSL conns per connection, we count a single handshake.
1918 */
1919 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1920 int64_t mem = global.rlimit_memmax * 1048576ULL;
1921
1922 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1923 mem -= global.maxzlibmem;
1924 mem = mem * MEM_USABLE_RATIO;
1925
1926 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001927 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001928 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1929 global.ssl_handshake_max_cost); // 1 handshake per connection max
1930
1931 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001932#ifdef SYSTEM_MAXCONN
1933 if (global.maxconn > DEFAULT_MAXCONN)
1934 global.maxconn = DEFAULT_MAXCONN;
1935#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001936 global.maxsslconn = sides * global.maxconn;
1937 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1938 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1939 global.maxconn, global.maxsslconn);
1940 }
1941 else if (!global.maxsslconn &&
1942 (global.ssl_used_frontend || global.ssl_used_backend)) {
1943 /* memmax and maxconn are known, compute maxsslconn automatically.
1944 * maxsslconn being forced, we don't know how many of it will be
1945 * on each side if both sides are being used. The worst case is
1946 * when all connections use only one SSL instance because
1947 * handshakes may be on two sides at the same time.
1948 */
1949 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1950 int64_t mem = global.rlimit_memmax * 1048576ULL;
1951 int64_t sslmem;
1952
1953 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1954 mem -= global.maxzlibmem;
1955 mem = mem * MEM_USABLE_RATIO;
1956
Willy Tarreau87b09662015-04-03 00:22:06 +02001957 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001958 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1959 global.maxsslconn = round_2dig(global.maxsslconn);
1960
1961 if (sslmem <= 0 || global.maxsslconn < sides) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001962 ha_alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1963 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1964 "without SSL is %d, but %d was found and SSL is in use.\n",
1965 global.rlimit_memmax,
1966 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
1967 global.maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001968 exit(1);
1969 }
1970
1971 if (global.maxsslconn > sides * global.maxconn)
1972 global.maxsslconn = sides * global.maxconn;
1973
1974 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1975 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1976 }
1977#endif
1978 else if (!global.maxconn) {
1979 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1980 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1981 int64_t mem = global.rlimit_memmax * 1048576ULL;
1982 int64_t clearmem;
1983
1984 if (global.ssl_used_frontend || global.ssl_used_backend)
1985 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1986
1987 mem -= global.maxzlibmem;
1988 mem = mem * MEM_USABLE_RATIO;
1989
1990 clearmem = mem;
1991 if (sides)
1992 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1993
Willy Tarreau87b09662015-04-03 00:22:06 +02001994 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001995 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001996#ifdef SYSTEM_MAXCONN
1997 if (global.maxconn > DEFAULT_MAXCONN)
1998 global.maxconn = DEFAULT_MAXCONN;
1999#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01002000
2001 if (clearmem <= 0 || !global.maxconn) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002002 ha_alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
2003 "high for the global.memmax value (%d MB). The absolute maximum possible value "
2004 "is %d, but %d was found.\n",
2005 global.rlimit_memmax,
2006 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
2007 global.maxsslconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01002008 exit(1);
2009 }
2010
2011 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2012 if (sides && global.maxsslconn > sides * global.maxconn) {
2013 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
2014 "to be limited to %d. Better reduce global.maxsslconn to get more "
2015 "room for extra connections.\n", global.maxsslconn, global.maxconn);
2016 }
2017 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
2018 }
2019 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002020
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002021 if (!global.maxpipes) {
2022 /* maxpipes not specified. Count how many frontends and backends
2023 * may be using splicing, and bound that to maxconn.
2024 */
2025 struct proxy *cur;
2026 int nbfe = 0, nbbe = 0;
2027
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002028 for (cur = proxies_list; cur; cur = cur->next) {
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002029 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
2030 if (cur->cap & PR_CAP_FE)
2031 nbfe += cur->maxconn;
2032 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +01002033 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002034 }
2035 }
2036 global.maxpipes = MAX(nbfe, nbbe);
2037 if (global.maxpipes > global.maxconn)
2038 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +01002039 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01002040 }
2041
2042
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002043 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002044 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01002045 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Emeric Brunece0c332017-12-06 13:51:49 +01002046 /* compute fd used by async engines */
2047 if (global.ssl_used_async_engines) {
2048 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
2049 global.maxsock += global.maxconn * sides * global.ssl_used_async_engines;
2050 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002051
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002052 if (global.stats_fe)
2053 global.maxsock += global.stats_fe->maxconn;
2054
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002055 if (cfg_peers) {
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002056 /* peers also need to bypass global maxconn */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002057 struct peers *p = cfg_peers;
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002058
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002059 for (p = cfg_peers; p; p = p->next)
Willy Tarreau3c63fd82011-09-07 18:00:47 +02002060 if (p->peers_fe)
2061 global.maxsock += p->peers_fe->maxconn;
2062 }
2063
Willy Tarreau1db37712007-06-03 17:16:49 +02002064 if (global.tune.maxpollevents <= 0)
2065 global.tune.maxpollevents = MAX_POLL_EVENTS;
2066
Olivier Houchard1599b802018-05-24 18:59:04 +02002067 if (global.tune.runqueue_depth <= 0)
2068 global.tune.runqueue_depth = RUNQUEUE_DEPTH;
2069
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01002070 if (global.tune.recv_enough == 0)
2071 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
2072
Willy Tarreau27097842015-09-28 13:53:23 +02002073 if (global.tune.maxrewrite < 0)
2074 global.tune.maxrewrite = MAXREWRITE;
2075
Willy Tarreau27a674e2009-08-17 07:23:33 +02002076 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
2077 global.tune.maxrewrite = global.tune.bufsize / 2;
2078
Willy Tarreaubaaee002006-06-26 02:48:02 +02002079 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
2080 /* command line debug mode inhibits configuration mode */
William Lallemand095ba4c2017-06-01 17:38:50 +02002081 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002082 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
2083 }
2084
William Lallemand095ba4c2017-06-01 17:38:50 +02002085 if (arg_mode & MODE_DAEMON) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002086 /* command line daemon mode inhibits foreground and debug modes mode */
2087 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
William Lallemand095ba4c2017-06-01 17:38:50 +02002088 global.mode |= arg_mode & MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002089 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02002090
2091 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02002092
William Lallemand095ba4c2017-06-01 17:38:50 +02002093 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002094 ha_warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
William Lallemand095ba4c2017-06-01 17:38:50 +02002095 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002096 }
2097
William Lallemand095ba4c2017-06-01 17:38:50 +02002098 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_MWORKER))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002099 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002100 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 +02002101 global.nbproc = 1;
2102 }
2103
2104 if (global.nbproc < 1)
2105 global.nbproc = 1;
2106
Christopher Fauletbe0faa22017-08-29 15:37:10 +02002107 if (global.nbthread < 1)
2108 global.nbthread = 1;
2109
Christopher Faulet3ef26392017-08-29 16:46:57 +02002110 /* Realloc trash buffers because global.tune.bufsize may have changed */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002111 if (!init_trash_buffers(0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002112 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet3ef26392017-08-29 16:46:57 +02002113 exit(1);
2114 }
2115
Christopher Faulet96d44832017-11-14 22:02:30 +01002116 if (!init_log_buffers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002117 ha_alert("failed to initialize log buffers.\n");
Christopher Faulet96d44832017-11-14 22:02:30 +01002118 exit(1);
2119 }
2120
Willy Tarreauef1d1f82007-04-16 00:25:25 +02002121 /*
2122 * Note: we could register external pollers here.
2123 * Built-in pollers have been registered before main().
2124 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02002125
Willy Tarreau43b78992009-01-25 15:42:27 +01002126 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02002127 disable_poller("kqueue");
2128
Willy Tarreau43b78992009-01-25 15:42:27 +01002129 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002130 disable_poller("epoll");
2131
Willy Tarreau43b78992009-01-25 15:42:27 +01002132 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002133 disable_poller("poll");
2134
Willy Tarreau43b78992009-01-25 15:42:27 +01002135 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02002136 disable_poller("select");
2137
2138 /* Note: we could disable any poller by name here */
2139
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002140 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02002141 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01002142 fprintf(stderr, "\n");
2143 list_filters(stderr);
2144 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002145
Willy Tarreau4f60f162007-04-08 16:39:58 +02002146 if (!init_pollers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002147 ha_alert("No polling mechanism available.\n"
2148 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
2149 " is too low on this platform to support maxconn and the number of listeners\n"
2150 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
2151 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
2152 " global maxconn setting to accommodate the system's limitation. For reference,\n"
2153 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
2154 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
2155 " check build settings using 'haproxy -vv'.\n\n",
2156 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002157 exit(1);
2158 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02002159 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
2160 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002161 }
2162
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002163 if (!global.node)
2164 global.node = strdup(hostname);
2165
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01002166 if (!hlua_post_init())
2167 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01002168
Maxime de Roucy0f503922016-05-13 23:52:55 +02002169 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002170}
2171
Simon Horman6fb82592011-07-15 13:14:11 +09002172static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09002173{
Simon Hormanac821422011-07-15 13:14:09 +09002174 struct acl_term_suite *suite, *suiteb;
2175 struct acl_term *term, *termb;
2176
Simon Horman6fb82592011-07-15 13:14:11 +09002177 if (!cond)
2178 return;
2179
2180 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
2181 list_for_each_entry_safe(term, termb, &suite->terms, list) {
2182 LIST_DEL(&term->list);
2183 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09002184 }
Simon Horman6fb82592011-07-15 13:14:11 +09002185 LIST_DEL(&suite->list);
2186 free(suite);
2187 }
2188
2189 free(cond);
2190}
2191
2192static void deinit_tcp_rules(struct list *rules)
2193{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02002194 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09002195
2196 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09002197 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09002198 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09002199 free(trule);
2200 }
2201}
2202
Simon Horman6fb82592011-07-15 13:14:11 +09002203static void deinit_stick_rules(struct list *rules)
2204{
2205 struct sticking_rule *rule, *ruleb;
2206
2207 list_for_each_entry_safe(rule, ruleb, rules, list) {
2208 LIST_DEL(&rule->list);
2209 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02002210 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09002211 free(rule);
2212 }
2213}
2214
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002215void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002216{
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002217 struct proxy *p = proxies_list, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002218 struct cap_hdr *h,*h_next;
2219 struct server *s,*s_next;
2220 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002221 struct acl_cond *cond, *condb;
2222 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002223 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002224 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002225 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002226 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002227 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01002228 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002229 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02002230 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01002231 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002232 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002233 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01002234 struct post_deinit_fct *pdf;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002235 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002236
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002237 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002238 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02002239 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002240 free(p->id);
2241 free(p->check_req);
2242 free(p->cookie_name);
2243 free(p->cookie_domain);
2244 free(p->url_param_name);
2245 free(p->capture_name);
2246 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09002247 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02002248 if (p->conf.logformat_string != default_http_log_format &&
2249 p->conf.logformat_string != default_tcp_log_format &&
2250 p->conf.logformat_string != clf_http_log_format)
2251 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02002252
Willy Tarreau62a61232013-04-12 18:13:46 +02002253 free(p->conf.lfs_file);
2254 free(p->conf.uniqueid_format_string);
2255 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08002256 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002257
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002258 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
2259 free(p->conf.logformat_sd_string);
2260 free(p->conf.lfsd_file);
2261
Willy Tarreaua534fea2008-08-03 12:19:50 +02002262 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02002263 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002264
Willy Tarreauf4f04122010-01-28 18:10:50 +01002265 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
2266 LIST_DEL(&cwl->list);
2267 free(cwl->s);
2268 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002269 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002270
Willy Tarreauf4f04122010-01-28 18:10:50 +01002271 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
2272 LIST_DEL(&cwl->list);
2273 free(cwl->s);
2274 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002275 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002276
Willy Tarreaub80c2302007-11-30 20:51:32 +01002277 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
2278 LIST_DEL(&cond->list);
2279 prune_acl_cond(cond);
2280 free(cond);
2281 }
2282
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002283 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002284 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002285 regex_free(exp->preg);
2286 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002287 }
2288
Willy Tarreau98d04852015-05-26 12:18:29 +02002289 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002290 expb = exp;
2291 exp = exp->next;
2292 free(expb);
2293 }
2294
2295 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002296 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002297 regex_free(exp->preg);
2298 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002299 }
2300
Willy Tarreau98d04852015-05-26 12:18:29 +02002301 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002302 expb = exp;
2303 exp = exp->next;
2304 free(expb);
2305 }
2306
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002307 /* build a list of unique uri_auths */
2308 if (!ua)
2309 ua = p->uri_auth;
2310 else {
2311 /* check if p->uri_auth is unique */
2312 for (uap = ua; uap; uap=uap->next)
2313 if (uap == p->uri_auth)
2314 break;
2315
Willy Tarreauaccc4e12008-06-24 11:14:45 +02002316 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002317 /* add it, if it is */
2318 p->uri_auth->next = ua;
2319 ua = p->uri_auth;
2320 }
2321 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002322
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002323 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
2324 LIST_DEL(&acl->list);
2325 prune_acl(acl);
2326 free(acl);
2327 }
2328
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002329 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
2330 LIST_DEL(&srule->list);
2331 prune_acl_cond(srule->cond);
2332 free(srule->cond);
2333 free(srule);
2334 }
2335
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002336 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
2337 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002338 if (rule->cond) {
2339 prune_acl_cond(rule->cond);
2340 free(rule->cond);
Thierry FOURNIER / OZON.IO4ed1c952016-11-24 23:57:54 +01002341 free(rule->file);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002342 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002343 free(rule);
2344 }
2345
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002346 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
2347 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01002348 if (rdr->cond) {
2349 prune_acl_cond(rdr->cond);
2350 free(rdr->cond);
2351 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002352 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01002353 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
2354 LIST_DEL(&lf->list);
2355 free(lf);
2356 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002357 free(rdr);
2358 }
2359
William Lallemand0f99e342011-10-12 17:50:54 +02002360 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
2361 LIST_DEL(&log->list);
2362 free(log);
2363 }
2364
William Lallemand723b73a2012-02-08 16:37:49 +01002365 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
2366 LIST_DEL(&lf->list);
2367 free(lf);
2368 }
2369
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002370 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
2371 LIST_DEL(&lf->list);
2372 free(lf);
2373 }
2374
Simon Hormanac821422011-07-15 13:14:09 +09002375 deinit_tcp_rules(&p->tcp_req.inspect_rules);
2376 deinit_tcp_rules(&p->tcp_req.l4_rules);
2377
Simon Horman6fb82592011-07-15 13:14:11 +09002378 deinit_stick_rules(&p->storersp_rules);
2379 deinit_stick_rules(&p->sticking_rules);
2380
Willy Tarreaubaaee002006-06-26 02:48:02 +02002381 h = p->req_cap;
2382 while (h) {
2383 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002384 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002385 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002386 free(h);
2387 h = h_next;
2388 }/* end while(h) */
2389
2390 h = p->rsp_cap;
2391 while (h) {
2392 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002393 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002394 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002395 free(h);
2396 h = h_next;
2397 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002398
Willy Tarreaubaaee002006-06-26 02:48:02 +02002399 s = p->srv;
2400 while (s) {
2401 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002402
Willy Tarreau5b3a2022012-09-28 15:01:02 +02002403 if (s->check.task) {
2404 task_delete(s->check.task);
2405 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002406 }
Simon Hormand60d6912013-11-25 10:46:36 +09002407 if (s->agent.task) {
2408 task_delete(s->agent.task);
2409 task_free(s->agent.task);
2410 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002411
Willy Tarreau2e993902011-10-31 11:53:20 +01002412 if (s->warmup) {
2413 task_delete(s->warmup);
2414 task_free(s->warmup);
2415 }
2416
Willy Tarreaua534fea2008-08-03 12:19:50 +02002417 free(s->id);
2418 free(s->cookie);
Willy Tarreauc9fa0482018-07-10 17:43:27 +02002419 free(s->check.bi.area);
2420 free(s->check.bo.area);
2421 free(s->agent.bi.area);
2422 free(s->agent.bo.area);
James Brown55f9ff12015-10-21 18:19:05 -07002423 free(s->agent.send_string);
Christopher Faulet67957bd2017-09-27 11:00:59 +02002424 free(s->hostname_dn);
Sárközi, László34c01792014-09-05 10:08:23 +02002425 free((char*)s->conf.file);
Olivier Houchard7fc3be72018-11-22 18:50:54 +01002426 free(s->idle_conns);
2427 free(s->priv_conns);
2428 free(s->safe_conns);
Olivier Houchard0c18a6f2018-12-02 14:11:41 +01002429 free(s->idle_orphan_conns);
2430 if (s->idle_task) {
2431 int i;
2432
2433 for (i = 0; i < global.nbthread; i++)
2434 task_free(s->idle_task[i]);
2435 free(s->idle_task);
2436 }
Willy Tarreau17d45382016-12-22 21:16:08 +01002437
2438 if (s->use_ssl || s->check.use_ssl) {
2439 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
2440 xprt_get(XPRT_SSL)->destroy_srv(s);
2441 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002442 HA_SPIN_DESTROY(&s->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002443 free(s);
2444 s = s_next;
2445 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002446
Willy Tarreau4348fad2012-09-20 16:48:07 +02002447 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002448 /*
2449 * Zombie proxy, the listener just pretend to be up
2450 * because they still hold an opened fd.
2451 * Close it and give the listener its real state.
2452 */
2453 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
2454 close(l->fd);
2455 l->state = LI_INIT;
2456 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02002457 unbind_listener(l);
2458 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002459 LIST_DEL(&l->by_fe);
2460 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002461 free(l->name);
2462 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002463 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002464 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002465
Willy Tarreau4348fad2012-09-20 16:48:07 +02002466 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002467 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01002468 if (bind_conf->xprt->destroy_bind_conf)
2469 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002470 free(bind_conf->file);
2471 free(bind_conf->arg);
2472 LIST_DEL(&bind_conf->by_fe);
2473 free(bind_conf);
2474 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02002475
Christopher Fauletd7c91962015-04-30 11:48:27 +02002476 flt_deinit(p);
2477
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002478 free(p->desc);
2479 free(p->fwdfor_hdr_name);
2480
Willy Tarreauff011f22011-01-06 17:51:27 +01002481 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06002482 free_http_res_rules(&p->http_res_rules);
Willy Tarreau1f89b182017-11-22 16:53:53 +01002483 task_free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01002484
Willy Tarreaubafbe012017-11-24 17:34:44 +01002485 pool_destroy(p->req_cap_pool);
2486 pool_destroy(p->rsp_cap_pool);
2487 pool_destroy(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002488
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002489 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002490 p = p->next;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002491 HA_SPIN_DESTROY(&p0->lbprm.lock);
2492 HA_SPIN_DESTROY(&p0->lock);
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002493 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002494 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02002495
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002496 while (ua) {
2497 uap = ua;
2498 ua = ua->next;
2499
Willy Tarreaua534fea2008-08-03 12:19:50 +02002500 free(uap->uri_prefix);
2501 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002502 free(uap->node);
2503 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002504
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002505 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01002506 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002507
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002508 free(uap);
2509 }
2510
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002511 userlist_free(userlist);
2512
David Carlier834cb2e2015-09-25 12:02:25 +01002513 cfg_unregister_sections();
2514
Christopher Faulet0132d062017-07-26 15:33:35 +02002515 deinit_log_buffers();
David Carlier834cb2e2015-09-25 12:02:25 +01002516
Willy Tarreaudd815982007-10-16 12:25:14 +02002517 protocol_unbind_all();
2518
Willy Tarreau05554e62016-12-21 20:46:26 +01002519 list_for_each_entry(pdf, &post_deinit_list, list)
2520 pdf->fct();
2521
Joe Williamsdf5b38f2010-12-29 17:05:48 +01002522 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02002523 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002524 free(global.chroot); global.chroot = NULL;
2525 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002526 free(global.node); global.node = NULL;
2527 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002528 free(oldpids); oldpids = NULL;
Willy Tarreau1f89b182017-11-22 16:53:53 +01002529 task_free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002530
William Lallemand0f99e342011-10-12 17:50:54 +02002531 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
2532 LIST_DEL(&log->list);
2533 free(log);
2534 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01002535 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02002536 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01002537 LIST_DEL(&wl->list);
2538 free(wl);
2539 }
2540
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002541 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
2542 if (bol->must_free)
2543 free((void *)bol->str);
2544 LIST_DEL(&bol->list);
2545 free(bol);
2546 }
2547
Christopher Fauletff2613e2016-11-09 11:36:17 +01002548 vars_prune(&global.vars, NULL, NULL);
Willy Tarreau2455ceb2018-11-26 15:57:34 +01002549 pool_destroy_all();
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002550 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002551} /* end deinit() */
2552
William Lallemand72160322018-11-06 17:37:16 +01002553
2554
2555/* This is a wrapper for the sockpair FD, It tests if the socket received an
2556 * EOF, if not, it calls listener_accept */
2557void mworker_accept_wrapper(int fd)
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002558{
2559 char c;
William Lallemand72160322018-11-06 17:37:16 +01002560 int ret;
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002561
William Lallemand72160322018-11-06 17:37:16 +01002562 while (1) {
2563 ret = recv(fd, &c, 1, MSG_PEEK);
2564 if (ret == -1) {
2565 if (errno == EINTR)
2566 continue;
2567 if (errno == EAGAIN) {
2568 fd_cant_recv(fd);
2569 return;
2570 }
2571 break;
2572 } else if (ret > 0) {
2573 listener_accept(fd);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002574 return;
William Lallemand72160322018-11-06 17:37:16 +01002575 } else if (ret == 0) {
2576 /* At this step the master is down before
2577 * this worker perform a 'normal' exit.
2578 * So we want to exit with an error but
2579 * other threads could currently process
2580 * some stuff so we can't perform a clean
2581 * deinit().
2582 */
2583 exit(EXIT_FAILURE);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002584 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002585 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002586 return;
2587}
2588
William Lallemand72160322018-11-06 17:37:16 +01002589/*
William Lallemand72160322018-11-06 17:37:16 +01002590 * This function register the accept wrapper for the sockpair of the master worker
2591 */
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002592void mworker_pipe_register()
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002593{
William Lallemand72160322018-11-06 17:37:16 +01002594 /* The iocb should be already initialized with listener_accept */
William Lallemanda90cacf2018-11-07 08:38:32 +01002595 if (fdtab[proc_self->ipc_fd[1]].iocb == mworker_accept_wrapper)
2596 return;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002597
William Lallemandbc193052018-09-11 10:06:26 +02002598 fcntl(proc_self->ipc_fd[1], F_SETFL, O_NONBLOCK);
Emeric Brunc8c0ed92018-10-11 15:27:07 +02002599 /* In multi-tread, we need only one thread to process
2600 * events on the pipe with master
2601 */
William Lallemande260e0d2018-11-08 12:00:14 +01002602 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 +02002603 fd_want_recv(proc_self->ipc_fd[1]);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002604}
Christopher Fauletdc628a32017-10-19 11:59:44 +02002605
Willy Tarreau918ff602011-07-25 16:33:49 +02002606/* Runs the polling loop */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01002607static void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02002608{
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002609 int next, exp;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002610
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002611 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002612 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002613 /* Process a few tasks */
2614 process_runnable_tasks();
2615
William Lallemand1aab50b2018-06-07 09:46:01 +02002616 /* check if we caught some signals and process them in the
2617 first thread */
2618 if (tid == 0)
2619 signal_process_queue();
Willy Tarreau29857942009-05-10 09:01:21 +02002620
Willy Tarreau58b458d2008-06-29 22:40:23 +02002621 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002622 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002623
Willy Tarreau85c459d2018-08-02 10:54:31 +02002624 /* stop when there's nothing left to do */
William Lallemanda7199262018-11-16 16:57:20 +01002625 if ((jobs - unstoppable_jobs) == 0)
Willy Tarreau85c459d2018-08-02 10:54:31 +02002626 break;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002627
Willy Tarreau10146c92015-04-13 20:44:19 +02002628 /* expire immediately if events are pending */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002629 exp = now_ms;
Christopher Faulet32467fe2018-01-15 12:16:34 +01002630 if (fd_cache_mask & tid_bit)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002631 activity[tid].wake_cache++;
2632 else if (active_tasks_mask & tid_bit)
2633 activity[tid].wake_tasks++;
William Lallemand1aab50b2018-06-07 09:46:01 +02002634 else if (signal_queue_len && tid == 0)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002635 activity[tid].wake_signal++;
Olivier Houchard79321b92018-07-26 17:55:11 +02002636 else {
2637 HA_ATOMIC_OR(&sleeping_thread_mask, tid_bit);
2638 __ha_barrier_store();
2639 if (active_tasks_mask & tid_bit) {
2640 activity[tid].wake_tasks++;
2641 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
2642 } else
2643 exp = next;
2644 }
Willy Tarreau10146c92015-04-13 20:44:19 +02002645
Willy Tarreau58b458d2008-06-29 22:40:23 +02002646 /* The poller will ensure it returns around <next> */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002647 cur_poller.poll(&cur_poller, exp);
Olivier Houchard79321b92018-07-26 17:55:11 +02002648 if (sleeping_thread_mask & tid_bit)
2649 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01002650 fd_process_cached_events();
Emeric Brun64cc49c2017-10-03 14:46:45 +02002651
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002652 activity[tid].loops++;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002653 }
2654}
2655
Christopher Faulet1d17c102017-08-29 15:38:48 +02002656static void *run_thread_poll_loop(void *data)
2657{
2658 struct per_thread_init_fct *ptif;
2659 struct per_thread_deinit_fct *ptdf;
Christopher Fauletda18b9d2018-01-25 16:10:16 +01002660 __decl_hathreads(static HA_SPINLOCK_T start_lock);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002661
Willy Tarreau0c026f42018-08-01 19:12:20 +02002662 ha_set_tid(*((unsigned int *)data));
Christopher Faulet1d17c102017-08-29 15:38:48 +02002663 tv_update_date(-1,-1);
2664
2665 list_for_each_entry(ptif, &per_thread_init_list, list) {
2666 if (!ptif->fct()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002667 ha_alert("failed to initialize thread %u.\n", tid);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002668 exit(1);
2669 }
2670 }
2671
William Lallemandbc193052018-09-11 10:06:26 +02002672 if ((global.mode & MODE_MWORKER) && master == 0) {
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002673 HA_SPIN_LOCK(START_LOCK, &start_lock);
2674 mworker_pipe_register();
2675 HA_SPIN_UNLOCK(START_LOCK, &start_lock);
2676 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002677
2678 protocol_enable_all();
Christopher Faulet1d17c102017-08-29 15:38:48 +02002679 run_poll_loop();
2680
2681 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
2682 ptdf->fct();
2683
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002684#ifdef USE_THREAD
William Lallemand091d8272018-06-24 09:37:03 +02002685 HA_ATOMIC_AND(&all_threads_mask, ~tid_bit);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002686 if (tid > 0)
2687 pthread_exit(NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002688#endif
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002689 return NULL;
2690}
Christopher Faulet1d17c102017-08-29 15:38:48 +02002691
Willy Tarreaue9b26022011-08-01 20:57:55 +02002692/* This is the global management task for listeners. It enables listeners waiting
2693 * for global resources when there are enough free resource, or at least once in
2694 * a while. It is designed to be called as a task.
2695 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02002696static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state)
Willy Tarreaue9b26022011-08-01 20:57:55 +02002697{
2698 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02002699 /* queue is empty, nothing to do */
2700 if (LIST_ISEMPTY(&global_listener_queue))
2701 goto out;
2702
2703 /* If there are still too many concurrent connections, let's wait for
2704 * some of them to go away. We don't need to re-arm the timer because
2705 * each of them will scan the queue anyway.
2706 */
2707 if (unlikely(actconn >= global.maxconn))
2708 goto out;
2709
2710 /* We should periodically try to enable listeners waiting for a global
2711 * resource here, because it is possible, though very unlikely, that
2712 * they have been blocked by a temporary lack of global resource such
2713 * as a file descriptor or memory and that the temporary condition has
2714 * disappeared.
2715 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002716 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02002717
2718 out:
2719 t->expire = next;
2720 task_queue(t);
2721 return t;
2722}
Willy Tarreau4f60f162007-04-08 16:39:58 +02002723
Willy Tarreaubaaee002006-06-26 02:48:02 +02002724int main(int argc, char **argv)
2725{
2726 int err, retry;
2727 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02002728 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02002729 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002730
Olivier Houchard5fa300d2018-02-03 15:15:21 +01002731 setvbuf(stdout, NULL, _IONBF, 0);
Willy Tarreau5794fb02018-11-25 18:43:29 +01002732
2733 /* process all initcalls in order of potential dependency */
2734 RUN_INITCALLS(STG_PREPARE);
2735 RUN_INITCALLS(STG_LOCK);
2736 RUN_INITCALLS(STG_ALLOC);
2737 RUN_INITCALLS(STG_POOL);
2738 RUN_INITCALLS(STG_REGISTER);
2739 RUN_INITCALLS(STG_INIT);
2740
Emeric Bruncf20bf12010-10-22 16:06:11 +02002741 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002742 signal_register_fct(SIGQUIT, dump, SIGQUIT);
2743 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
2744 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
William Lallemand73b85e72017-06-01 17:38:51 +02002745 signal_register_fct(SIGUSR2, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002746
Willy Tarreaue437c442010-03-17 18:02:46 +01002747 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
2748 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
2749 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002750 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002751 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002752
Willy Tarreaudc23a922011-02-16 11:10:36 +01002753 /* ulimits */
2754 if (!global.rlimit_nofile)
2755 global.rlimit_nofile = global.maxsock;
2756
2757 if (global.rlimit_nofile) {
2758 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
2759 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02002760 /* try to set it to the max possible at least */
2761 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02002762 limit.rlim_cur = limit.rlim_max;
2763 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
2764 getrlimit(RLIMIT_NOFILE, &limit);
2765
Christopher Faulet767a84b2017-11-24 16:50:31 +01002766 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 +02002767 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002768 }
2769 }
2770
2771 if (global.rlimit_memmax) {
2772 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01002773 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002774#ifdef RLIMIT_AS
2775 if (setrlimit(RLIMIT_AS, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002776 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2777 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002778 }
2779#else
2780 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002781 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2782 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002783 }
2784#endif
2785 }
2786
Olivier Houchardf73629d2017-04-05 22:33:04 +02002787 if (old_unixsocket) {
William Lallemand85b0bd92017-06-01 17:38:53 +02002788 if (strcmp("/dev/null", old_unixsocket) != 0) {
2789 if (get_old_sockets(old_unixsocket) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002790 ha_alert("Failed to get the sockets from the old process!\n");
William Lallemand85b0bd92017-06-01 17:38:53 +02002791 if (!(global.mode & MODE_MWORKER))
2792 exit(1);
2793 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002794 }
2795 }
William Lallemand85b0bd92017-06-01 17:38:53 +02002796 get_cur_unixsocket();
2797
Willy Tarreaubaaee002006-06-26 02:48:02 +02002798 /* We will loop at most 100 times with 10 ms delay each time.
2799 * That's at most 1 second. We only send a signal to old pids
2800 * if we cannot grab at least one port.
2801 */
2802 retry = MAX_START_RETRIES;
2803 err = ERR_NONE;
2804 while (retry >= 0) {
2805 struct timeval w;
2806 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01002807 /* exit the loop on no error or fatal error */
2808 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002809 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02002810 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002811 break;
2812
2813 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
2814 * listening sockets. So on those platforms, it would be wiser to
2815 * simply send SIGUSR1, which will not be undoable.
2816 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02002817 if (tell_old_pids(SIGTTOU) == 0) {
2818 /* no need to wait if we can't contact old pids */
2819 retry = 0;
2820 continue;
2821 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002822 /* give some time to old processes to stop listening */
2823 w.tv_sec = 0;
2824 w.tv_usec = 10*1000;
2825 select(0, NULL, NULL, NULL, &w);
2826 retry--;
2827 }
2828
2829 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01002830 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02002831 if (retry != MAX_START_RETRIES && nb_oldpids) {
2832 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002833 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02002834 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002835 exit(1);
2836 }
2837
William Lallemand944e6192018-11-21 15:48:31 +01002838 if (!(global.mode & MODE_MWORKER_WAIT) && listeners == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002839 ha_alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002840 /* Note: we don't have to send anything to the old pids because we
2841 * never stopped them. */
2842 exit(1);
2843 }
2844
Emeric Bruncf20bf12010-10-22 16:06:11 +02002845 err = protocol_bind_all(errmsg, sizeof(errmsg));
2846 if ((err & ~ERR_WARN) != ERR_NONE) {
2847 if ((err & ERR_ALERT) || (err & ERR_WARN))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002848 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002849
Christopher Faulet767a84b2017-11-24 16:50:31 +01002850 ha_alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002851 protocol_unbind_all(); /* cleanup everything we can */
2852 if (nb_oldpids)
2853 tell_old_pids(SIGTTIN);
2854 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002855 } else if (err & ERR_WARN) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002856 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02002857 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002858 /* Ok, all listener should now be bound, close any leftover sockets
2859 * the previous process gave us, we don't need them anymore
2860 */
2861 while (xfer_sock_list != NULL) {
2862 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
2863 close(xfer_sock_list->fd);
2864 free(xfer_sock_list->iface);
2865 free(xfer_sock_list->namespace);
2866 free(xfer_sock_list);
2867 xfer_sock_list = tmpxfer;
2868 }
Willy Tarreaudd815982007-10-16 12:25:14 +02002869
Willy Tarreaubaaee002006-06-26 02:48:02 +02002870 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002871 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
2872 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002873
Willy Tarreaubaaee002006-06-26 02:48:02 +02002874 /* MODE_QUIET can inhibit alerts and warnings below this line */
2875
PiBa-NL149a81a2017-12-25 21:03:31 +01002876 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL) {
2877 /* either stdin/out/err are already closed or should stay as they are. */
2878 if ((global.mode & MODE_DAEMON)) {
2879 /* daemon mode re-executing, stdin/stdout/stderr are already closed so keep quiet */
2880 global.mode &= ~MODE_VERBOSE;
2881 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2882 }
2883 } else {
2884 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
2885 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01002886 stdio_quiet(-1);
PiBa-NL149a81a2017-12-25 21:03:31 +01002887 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002888 }
2889
2890 /* open log & pid files before the chroot */
William Lallemand80293002017-11-06 11:00:03 +01002891 if ((global.mode & MODE_DAEMON || global.mode & MODE_MWORKER) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002892 unlink(global.pidfile);
2893 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
2894 if (pidfd < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002895 ha_alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002896 if (nb_oldpids)
2897 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02002898 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002899 exit(1);
2900 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002901 }
2902
Willy Tarreaub38651a2007-03-24 17:24:39 +01002903 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002904 ha_alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
2905 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002906 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01002907 exit(1);
2908 }
2909
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002910 /* If the user is not root, we'll still let him try the configuration
2911 * but we inform him that unexpected behaviour may occur.
2912 */
2913 if ((global.last_checks & LSTCHK_NETADM) && getuid())
Christopher Faulet767a84b2017-11-24 16:50:31 +01002914 ha_warning("[%s.main()] Some options which require full privileges"
2915 " might not work well.\n"
2916 "", argv[0]);
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002917
William Lallemand095ba4c2017-06-01 17:38:50 +02002918 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2919
2920 /* chroot if needed */
2921 if (global.chroot != NULL) {
2922 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002923 ha_alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02002924 if (nb_oldpids)
2925 tell_old_pids(SIGTTIN);
2926 protocol_unbind_all();
2927 exit(1);
2928 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002929 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002930 }
2931
William Lallemand944e6192018-11-21 15:48:31 +01002932 if (nb_oldpids && !(global.mode & MODE_MWORKER_WAIT))
Willy Tarreaubb545b42010-08-25 12:58:59 +02002933 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002934
William Lallemand8a361b52017-06-20 11:20:33 +02002935 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
2936 nb_oldpids = 0;
2937 free(oldpids);
2938 oldpids = NULL;
2939 }
2940
2941
Willy Tarreaubaaee002006-06-26 02:48:02 +02002942 /* Note that any error at this stage will be fatal because we will not
2943 * be able to restart the old pids.
2944 */
2945
William Lallemand095ba4c2017-06-01 17:38:50 +02002946 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2947 /* setgid / setuid */
2948 if (global.gid) {
2949 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01002950 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2951 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002952
2953 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002954 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02002955 protocol_unbind_all();
2956 exit(1);
2957 }
2958 }
Michael Schererab012dd2013-01-12 18:35:19 +01002959
William Lallemand095ba4c2017-06-01 17:38:50 +02002960 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002961 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Michael Schererab012dd2013-01-12 18:35:19 +01002962 protocol_unbind_all();
2963 exit(1);
2964 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002965 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002966 /* check ulimits */
2967 limit.rlim_cur = limit.rlim_max = 0;
2968 getrlimit(RLIMIT_NOFILE, &limit);
2969 if (limit.rlim_cur < global.maxsock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002970 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",
2971 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002972 }
2973
William Lallemand944e6192018-11-21 15:48:31 +01002974 if (global.mode & (MODE_DAEMON | MODE_MWORKER | MODE_MWORKER_WAIT)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002975 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002976 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002977 int ret = 0;
2978 int proc;
William Lallemande1340412017-12-28 16:09:36 +01002979 int devnullfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002980
William Lallemand095ba4c2017-06-01 17:38:50 +02002981 /*
2982 * if daemon + mworker: must fork here to let a master
2983 * process live in background before forking children
2984 */
William Lallemand73b85e72017-06-01 17:38:51 +02002985
2986 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)
2987 && (global.mode & MODE_MWORKER)
2988 && (global.mode & MODE_DAEMON)) {
William Lallemand095ba4c2017-06-01 17:38:50 +02002989 ret = fork();
2990 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002991 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002992 protocol_unbind_all();
2993 exit(1); /* there has been an error */
William Lallemandbfd8eb52018-07-04 15:31:23 +02002994 } else if (ret > 0) { /* parent leave to daemonize */
William Lallemand095ba4c2017-06-01 17:38:50 +02002995 exit(0);
William Lallemandbfd8eb52018-07-04 15:31:23 +02002996 } else /* change the process group ID in the child (master process) */
2997 setsid();
William Lallemand095ba4c2017-06-01 17:38:50 +02002998 }
William Lallemande20b6a62017-06-01 17:38:55 +02002999
William Lallemande20b6a62017-06-01 17:38:55 +02003000
William Lallemanddeed7802017-11-06 11:00:04 +01003001 /* if in master-worker mode, write the PID of the father */
3002 if (global.mode & MODE_MWORKER) {
3003 char pidstr[100];
3004 snprintf(pidstr, sizeof(pidstr), "%d\n", getpid());
Willy Tarreau46ec48b2018-01-23 19:20:19 +01003005 if (pidfd >= 0)
3006 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
William Lallemanddeed7802017-11-06 11:00:04 +01003007 }
3008
Willy Tarreaubaaee002006-06-26 02:48:02 +02003009 /* the father launches the required number of processes */
William Lallemand944e6192018-11-21 15:48:31 +01003010 if (!(global.mode & MODE_MWORKER_WAIT)) {
3011 children = calloc(global.nbproc, sizeof(int));
3012 for (proc = 0; proc < global.nbproc; proc++) {
3013 ret = fork();
3014 if (ret < 0) {
3015 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
3016 protocol_unbind_all();
3017 exit(1); /* there has been an error */
3018 }
3019 else if (ret == 0) /* child breaks here */
3020 break;
3021 children[proc] = ret;
3022 if (pidfd >= 0 && !(global.mode & MODE_MWORKER)) {
3023 char pidstr[100];
3024 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
3025 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
3026 }
3027 if (global.mode & MODE_MWORKER) {
3028 struct mworker_proc *child;
William Lallemandce83b4a2018-10-26 14:47:30 +02003029
William Lallemand220567e2018-11-21 18:04:53 +01003030 ha_notice("New worker #%d (%d) forked\n", relative_pid, ret);
William Lallemand944e6192018-11-21 15:48:31 +01003031 /* find the right mworker_proc */
3032 list_for_each_entry(child, &proc_list, list) {
3033 if (child->relative_pid == relative_pid &&
3034 child->reloads == 0) {
3035 child->timestamp = now.tv_sec;
3036 child->pid = ret;
3037 break;
3038 }
William Lallemandce83b4a2018-10-26 14:47:30 +02003039 }
3040 }
William Lallemandbc193052018-09-11 10:06:26 +02003041
William Lallemand944e6192018-11-21 15:48:31 +01003042 relative_pid++; /* each child will get a different one */
3043 pid_bit <<= 1;
3044 }
3045 } else {
3046 /* wait mode */
3047 global.nbproc = 1;
3048 proc = 1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003049 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003050
3051#ifdef USE_CPU_AFFINITY
3052 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02003053 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003054 global.cpu_map.proc[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003055#ifdef __FreeBSD__
Olivier Houchard97148f62017-08-16 17:29:11 +02003056 {
3057 cpuset_t cpuset;
3058 int i;
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003059 unsigned long cpu_map = global.cpu_map.proc[proc];
Olivier Houchard97148f62017-08-16 17:29:11 +02003060
3061 CPU_ZERO(&cpuset);
3062 while ((i = ffsl(cpu_map)) > 0) {
3063 CPU_SET(i - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003064 cpu_map &= ~(1UL << (i - 1));
Olivier Houchard97148f62017-08-16 17:29:11 +02003065 }
3066 ret = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset), &cpuset);
3067 }
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003068#else
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003069 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map.proc[proc]);
Willy Tarreaufc6c0322012-11-16 16:12:27 +01003070#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02003071#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02003072 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02003073 if (pidfd >= 0) {
3074 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
3075 close(pidfd);
3076 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02003077
3078 /* We won't ever use this anymore */
Willy Tarreaud137dd32010-08-25 12:49:05 +02003079 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003080
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003081 if (proc == global.nbproc) {
William Lallemand944e6192018-11-21 15:48:31 +01003082 if (global.mode & (MODE_MWORKER|MODE_MWORKER_WAIT)) {
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003083
3084 if ((!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
3085 (global.mode & MODE_DAEMON)) {
3086 /* detach from the tty, this is required to properly daemonize. */
William Lallemande1340412017-12-28 16:09:36 +01003087 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL))
3088 stdio_quiet(-1);
3089
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003090 global.mode &= ~MODE_VERBOSE;
3091 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
PiBa-NLbaf6ea42017-11-28 23:26:08 +01003092 }
3093
William Lallemandb3f2be32018-09-11 10:06:18 +02003094 mworker_loop();
William Lallemand1499b9b2017-06-07 15:04:47 +02003095 /* should never get there */
3096 exit(EXIT_FAILURE);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003097 }
William Lallemandcf4e4962017-06-08 19:05:48 +02003098#if defined(USE_OPENSSL) && !defined(OPENSSL_NO_DH)
Grant Zhang872f9c22017-01-21 01:10:18 +00003099 ssl_free_dh();
3100#endif
William Lallemand1499b9b2017-06-07 15:04:47 +02003101 exit(0); /* parent must leave */
Willy Tarreauedaff0a2015-05-01 17:01:08 +02003102 }
3103
William Lallemandcb11fd22017-06-01 17:38:52 +02003104 /* child must never use the atexit function */
3105 atexit_flag = 0;
3106
William Lallemandbc193052018-09-11 10:06:26 +02003107 /* close useless master sockets */
3108 if (global.mode & MODE_MWORKER) {
3109 struct mworker_proc *child, *it;
3110 master = 0;
3111
William Lallemand309dc9a2018-10-26 14:47:45 +02003112 mworker_cli_proxy_stop();
3113
William Lallemandbc193052018-09-11 10:06:26 +02003114 /* free proc struct of other processes */
3115 list_for_each_entry_safe(child, it, &proc_list, list) {
William Lallemandce83b4a2018-10-26 14:47:30 +02003116 /* close the FD of the master side for all
3117 * workers, we don't need to close the worker
3118 * side of other workers since it's done with
3119 * the bind_proc */
Tim Duesterhus742e0f92018-11-25 20:03:39 +01003120 if (child->ipc_fd[0] >= 0)
3121 close(child->ipc_fd[0]);
William Lallemandce83b4a2018-10-26 14:47:30 +02003122 if (child->relative_pid == relative_pid &&
3123 child->reloads == 0) {
3124 /* keep this struct if this is our pid */
3125 proc_self = child;
William Lallemandbc193052018-09-11 10:06:26 +02003126 continue;
William Lallemandce83b4a2018-10-26 14:47:30 +02003127 }
William Lallemandbc193052018-09-11 10:06:26 +02003128 LIST_DEL(&child->list);
3129 free(child);
3130 }
3131 }
Willy Tarreau1605c7a2018-01-23 19:01:49 +01003132
William Lallemande1340412017-12-28 16:09:36 +01003133 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
3134 devnullfd = open("/dev/null", O_RDWR, 0);
3135 if (devnullfd < 0) {
3136 ha_alert("Cannot open /dev/null\n");
3137 exit(EXIT_FAILURE);
3138 }
3139 }
3140
William Lallemand095ba4c2017-06-01 17:38:50 +02003141 /* Must chroot and setgid/setuid in the children */
3142 /* chroot if needed */
3143 if (global.chroot != NULL) {
3144 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003145 ha_alert("[%s.main()] Cannot chroot1(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02003146 if (nb_oldpids)
3147 tell_old_pids(SIGTTIN);
3148 protocol_unbind_all();
3149 exit(1);
3150 }
3151 }
3152
3153 free(global.chroot);
3154 global.chroot = NULL;
3155
3156 /* setgid / setuid */
3157 if (global.gid) {
3158 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01003159 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
3160 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02003161
3162 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003163 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003164 protocol_unbind_all();
3165 exit(1);
3166 }
3167 }
3168
3169 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01003170 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
William Lallemand095ba4c2017-06-01 17:38:50 +02003171 protocol_unbind_all();
3172 exit(1);
3173 }
3174
William Lallemand7f80eb22017-05-26 18:19:55 +02003175 /* pass through every cli socket, and check if it's bound to
3176 * the current process and if it exposes listeners sockets.
3177 * Caution: the GTUNE_SOCKET_TRANSFER is now set after the fork.
3178 * */
3179
3180 if (global.stats_fe) {
3181 struct bind_conf *bind_conf;
3182
3183 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
3184 if (bind_conf->level & ACCESS_FD_LISTENERS) {
3185 if (!bind_conf->bind_proc || bind_conf->bind_proc & (1UL << proc)) {
3186 global.tune.options |= GTUNE_SOCKET_TRANSFER;
3187 break;
3188 }
3189 }
3190 }
3191 }
3192
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003193 /* we might have to unbind some proxies from some processes */
Olivier Houchardfbc74e82017-11-24 16:54:05 +01003194 px = proxies_list;
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003195 while (px != NULL) {
3196 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02003197 if (!(px->bind_proc & (1UL << proc))) {
3198 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
3199 zombify_proxy(px);
3200 else
3201 stop_proxy(px);
3202 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01003203 }
3204 px = px->next;
3205 }
3206
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003207 /* we might have to unbind some peers sections from some processes */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02003208 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003209 if (!curpeers->peers_fe)
3210 continue;
3211
3212 if (curpeers->peers_fe->bind_proc & (1UL << proc))
3213 continue;
3214
3215 stop_proxy(curpeers->peers_fe);
3216 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02003217 signal_unregister_handler(curpeers->sighandler);
3218 task_delete(curpeers->sync_task);
3219 task_free(curpeers->sync_task);
3220 curpeers->sync_task = NULL;
3221 task_free(curpeers->peers_fe->task);
3222 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02003223 curpeers->peers_fe = NULL;
3224 }
3225
William Lallemand2e8fad92018-11-13 16:18:23 +01003226 /*
3227 * This is only done in daemon mode because we might want the
3228 * logs on stdout in mworker mode. If we're NOT in QUIET mode,
3229 * we should now close the 3 first FDs to ensure that we can
3230 * detach from the TTY. We MUST NOT do it in other cases since
3231 * it would have already be done, and 0-2 would have been
3232 * affected to listening sockets
Willy Tarreaubaaee002006-06-26 02:48:02 +02003233 */
William Lallemand2e8fad92018-11-13 16:18:23 +01003234 if ((global.mode & MODE_DAEMON) &&
3235 (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02003236 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01003237 stdio_quiet(devnullfd);
Willy Tarreau106cb762008-11-16 07:40:34 +01003238 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02003239 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
3240 }
3241 pid = getpid(); /* update child's pid */
William Lallemandbfd8eb52018-07-04 15:31:23 +02003242 if (!(global.mode & MODE_MWORKER)) /* in mworker mode we don't want a new pgid for the children */
3243 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02003244 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02003245 }
3246
Christopher Faulete3a5e352017-10-24 13:53:54 +02003247 global.mode &= ~MODE_STARTING;
Willy Tarreau4f60f162007-04-08 16:39:58 +02003248 /*
3249 * That's it : the central polling loop. Run until we stop.
3250 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02003251#ifdef USE_THREAD
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003252 {
Christopher Faulet1d17c102017-08-29 15:38:48 +02003253 unsigned int *tids = calloc(global.nbthread, sizeof(unsigned int));
3254 pthread_t *threads = calloc(global.nbthread, sizeof(pthread_t));
3255 int i;
William Lallemand1aab50b2018-06-07 09:46:01 +02003256 sigset_t blocked_sig, old_sig;
Christopher Faulet1d17c102017-08-29 15:38:48 +02003257
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003258 /* Init tids array */
3259 for (i = 0; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003260 tids[i] = i;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003261
William Lallemand1aab50b2018-06-07 09:46:01 +02003262 /* ensure the signals will be blocked in every thread */
3263 sigfillset(&blocked_sig);
3264 sigdelset(&blocked_sig, SIGPROF);
3265 sigdelset(&blocked_sig, SIGBUS);
3266 sigdelset(&blocked_sig, SIGFPE);
3267 sigdelset(&blocked_sig, SIGILL);
3268 sigdelset(&blocked_sig, SIGSEGV);
3269 pthread_sigmask(SIG_SETMASK, &blocked_sig, &old_sig);
3270
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003271 /* Create nbthread-1 thread. The first thread is the current process */
3272 threads[0] = pthread_self();
3273 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003274 pthread_create(&threads[i], NULL, &run_thread_poll_loop, &tids[i]);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003275
Christopher Faulet62519022017-10-16 15:49:32 +02003276#ifdef USE_CPU_AFFINITY
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003277 /* Now the CPU affinity for all threads */
3278 for (i = 0; i < global.nbthread; i++) {
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003279 if (global.cpu_map.proc[relative_pid-1])
3280 global.cpu_map.thread[relative_pid-1][i] &= global.cpu_map.proc[relative_pid-1];
Christopher Faulet62519022017-10-16 15:49:32 +02003281
Willy Tarreau421f02e2018-01-20 18:19:22 +01003282 if (i < MAX_THREADS && /* only the first 32/64 threads may be pinned */
Olivier Houchard829aa242017-12-01 18:19:43 +01003283 global.cpu_map.thread[relative_pid-1][i]) {/* only do this if the thread has a THREAD map */
3284#if defined(__FreeBSD__) || defined(__NetBSD__)
3285 cpuset_t cpuset;
3286#else
3287 cpu_set_t cpuset;
3288#endif
3289 int j;
3290 unsigned long cpu_map = global.cpu_map.thread[relative_pid-1][i];
3291
3292 CPU_ZERO(&cpuset);
3293
3294 while ((j = ffsl(cpu_map)) > 0) {
3295 CPU_SET(j - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003296 cpu_map &= ~(1UL << (j - 1));
Olivier Houchard829aa242017-12-01 18:19:43 +01003297 }
Christopher Faulet62519022017-10-16 15:49:32 +02003298 pthread_setaffinity_np(threads[i],
Olivier Houchard829aa242017-12-01 18:19:43 +01003299 sizeof(cpuset), &cpuset);
3300 }
Christopher Faulet1d17c102017-08-29 15:38:48 +02003301 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003302#endif /* !USE_CPU_AFFINITY */
3303
William Lallemand1aab50b2018-06-07 09:46:01 +02003304 /* when multithreading we need to let only the thread 0 handle the signals */
William Lallemandd3801c12018-09-11 10:06:23 +02003305 haproxy_unblock_signals();
William Lallemand1aab50b2018-06-07 09:46:01 +02003306
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003307 /* Finally, start the poll loop for the first thread */
3308 run_thread_poll_loop(&tids[0]);
3309
3310 /* Wait the end of other threads */
3311 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003312 pthread_join(threads[i], NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003313
Christopher Faulet1d17c102017-08-29 15:38:48 +02003314 free(tids);
3315 free(threads);
3316
Christopher Fauletb79a94c2017-05-30 15:34:30 +02003317#if defined(DEBUG_THREAD) || defined(DEBUG_FULL)
3318 show_lock_stats();
3319#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003320 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003321#else /* ! USE_THREAD */
William Lallemandd3801c12018-09-11 10:06:23 +02003322 haproxy_unblock_signals();
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003323 run_thread_poll_loop((int []){0});
Christopher Faulet62519022017-10-16 15:49:32 +02003324
Christopher Faulet62519022017-10-16 15:49:32 +02003325#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003326
3327 /* Do some cleanup */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003328 deinit();
Christopher Faulet1d17c102017-08-29 15:38:48 +02003329
Willy Tarreaubaaee002006-06-26 02:48:02 +02003330 exit(0);
3331}
3332
3333
3334/*
3335 * Local variables:
3336 * c-indent-level: 8
3337 * c-basic-offset: 8
3338 * End:
3339 */