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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>
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020055#ifdef __FreeBSD__
56#include <sys/param.h>
57#include <sys/cpuset.h>
David Carlier6d5c8412017-11-29 11:02:32 +000058#include <pthread_np.h>
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +020059#endif
Willy Tarreaufc6c0322012-11-16 16:12:27 +010060#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020061
62#ifdef DEBUG_FULL
63#include <assert.h>
64#endif
Tim Duesterhusd6942c82017-11-20 15:58:35 +010065#if defined(USE_SYSTEMD)
66#include <systemd/sd-daemon.h>
67#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020068
Willy Tarreau2dd0d472006-06-29 17:53:05 +020069#include <common/base64.h>
70#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020071#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020072#include <common/compat.h>
73#include <common/config.h>
74#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010075#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020076#include <common/memory.h>
77#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010078#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020079#include <common/regex.h>
80#include <common/standard.h>
81#include <common/time.h>
82#include <common/uri_auth.h>
83#include <common/version.h>
Christopher Fauletbe0faa22017-08-29 15:37:10 +020084#include <common/hathreads.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020085
86#include <types/capture.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020087#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020088#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090089#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020090#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020091
Willy Tarreau0fc45a72007-06-17 00:36:03 +020092#include <proto/acl.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020093#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020094#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020095#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020096#include <proto/channel.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +020097#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020098#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020099#include <proto/filters.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +0200100#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100101#include <proto/hlua.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200102#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200103#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100104#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200105#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +0100106#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200107#include <proto/proxy.h>
108#include <proto/queue.h>
109#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200110#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200111#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200112#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200113#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200114#include <proto/dns.h>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100115#include <proto/vars.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200116#ifdef USE_OPENSSL
Grant Zhang872f9c22017-01-21 01:10:18 +0000117#include <proto/ssl_sock.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200118#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200119
Willy Tarreau477ecd82010-01-03 21:12:30 +0100120/* list of config files */
121static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200122int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100123int relative_pid = 1; /* process id starting at 1 */
Willy Tarreau387bd4f2017-11-10 19:08:14 +0100124unsigned long pid_bit = 1; /* bit corresponding to the process id */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200125
Olivier Houchard79321b92018-07-26 17:55:11 +0200126volatile unsigned long sleeping_thread_mask; /* Threads that are about to sleep in poll() */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200127/* global options */
128struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100129 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100130 .nbproc = 1,
Christopher Fauletbe0faa22017-08-29 15:37:10 +0200131 .nbthread = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200132 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200133 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100134 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100135 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100136 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200137 .unix_bind = {
138 .ux = {
139 .uid = -1,
140 .gid = -1,
141 .mode = 0,
142 }
143 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200144 .tune = {
145 .bufsize = BUFSIZE,
Willy Tarreau27097842015-09-28 13:53:23 +0200146 .maxrewrite = -1,
Willy Tarreau43961d52010-10-04 20:39:20 +0200147 .chksize = BUFSIZE,
Willy Tarreaua24adf02014-11-27 01:11:56 +0100148 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200149 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200150#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100151 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200152#endif
William Lallemandf3747832012-11-09 12:33:10 +0100153 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100154#ifdef DEFAULT_IDLE_TIMER
155 .idle_timer = DEFAULT_IDLE_TIMER,
156#else
157 .idle_timer = 1000, /* 1 second */
158#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200159 },
Emeric Brun76d88952012-10-05 15:47:31 +0200160#ifdef USE_OPENSSL
161#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200162 .maxsslconn = DEFAULT_MAXSSLCONN,
163#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200164#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200165 /* others NULL OK */
166};
167
Willy Tarreaud80cb4e2018-01-20 19:30:13 +0100168struct activity activity[MAX_THREADS] __attribute__((aligned(64))) = { };
169
Willy Tarreaubaaee002006-06-26 02:48:02 +0200170/*********************************************************************/
171
172int stopping; /* non zero means stopping in progress */
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100173int killed; /* non zero means a hard-stop is triggered */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200174int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200175
176/* Here we store informations about the pids of the processes we may pause
177 * or kill. We will send them a signal every 10 ms until we can bind to all
178 * our ports. With 200 retries, that's about 2 seconds.
179 */
180#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200181static int *oldpids = NULL;
182static int oldpids_sig; /* use USR1 or TERM */
183
Olivier Houchardf73629d2017-04-05 22:33:04 +0200184/* Path to the unix socket we use to retrieve listener sockets from the old process */
185static const char *old_unixsocket;
186
William Lallemand85b0bd92017-06-01 17:38:53 +0200187static char *cur_unixsocket = NULL;
188
William Lallemandcb11fd22017-06-01 17:38:52 +0200189int atexit_flag = 0;
190
Willy Tarreaubb545b42010-08-25 12:58:59 +0200191int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200192const int zero = 0;
193const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200194const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200195
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100196char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200197char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200198
Willy Tarreau89efaed2013-12-13 15:14:55 +0100199/* used from everywhere just to drain results we don't want to read and which
200 * recent versions of gcc increasingly and annoyingly complain about.
201 */
202int shut_your_big_mouth_gcc_int = 0;
203
William Lallemand73b85e72017-06-01 17:38:51 +0200204int *children = NULL; /* store PIDs of children in master workers mode */
205
206static volatile sig_atomic_t caught_signal = 0;
207static char **next_argv = NULL;
208
William Lallemande20b6a62017-06-01 17:38:55 +0200209int mworker_pipe[2];
210
Willy Tarreau08ceb102011-07-24 22:58:00 +0200211/* list of the temporarily limited listeners because of lack of resource */
212struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200213struct task *global_listener_queue_task;
Olivier Houchard9f6af332018-05-25 14:04:04 +0200214static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200215
Willy Tarreauff055502014-04-28 22:27:06 +0200216/* bitfield of a few warnings to emit just once (WARN_*) */
217unsigned int warned = 0;
218
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100219
220/* These are strings to be reported in the output of "haproxy -vv". They may
221 * either be constants (in which case must_free must be zero) or dynamically
222 * allocated strings to pass to free() on exit, and in this case must_free
223 * must be non-zero.
224 */
225struct list build_opts_list = LIST_HEAD_INIT(build_opts_list);
226struct build_opts_str {
227 struct list list;
228 const char *str;
229 int must_free;
230};
231
Willy Tarreaue6945732016-12-21 19:57:00 +0100232/* These functions are called just after the point where the program exits
233 * after a config validity check, so they are generally suited for resource
234 * allocation and slow initializations that should be skipped during basic
235 * config checks. The functions must return 0 on success, or a combination
236 * of ERR_* flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause
237 * and immediate exit, so the function must have emitted any useful error.
238 */
239struct list post_check_list = LIST_HEAD_INIT(post_check_list);
240struct post_check_fct {
241 struct list list;
242 int (*fct)();
243};
244
Willy Tarreau05554e62016-12-21 20:46:26 +0100245/* These functions are called when freeing the global sections at the end
246 * of deinit, after everything is stopped. They don't return anything, and
247 * they work in best effort mode as their sole goal is to make valgrind
248 * mostly happy.
249 */
250struct list post_deinit_list = LIST_HEAD_INIT(post_deinit_list);
251struct post_deinit_fct {
252 struct list list;
253 void (*fct)();
254};
255
Christopher Faulet415f6112017-07-25 16:52:58 +0200256/* These functions are called for each thread just after the thread creation
257 * and before running the scheduler. They should be used to do per-thread
258 * initializations. They must return 0 if an error occurred. */
259struct list per_thread_init_list = LIST_HEAD_INIT(per_thread_init_list);
260struct per_thread_init_fct {
261 struct list list;
262 int (*fct)();
263};
264
265/* These functions are called for each thread just after the scheduler loop and
266 * before exiting the thread. They don't return anything and, as for post-deinit
267 * functions, they work in best effort mode as their sole goal is to make
268 * valgrind mostly happy. */
269struct list per_thread_deinit_list = LIST_HEAD_INIT(per_thread_deinit_list);
270struct per_thread_deinit_fct {
271 struct list list;
272 void (*fct)();
273};
274
Willy Tarreaubaaee002006-06-26 02:48:02 +0200275/*********************************************************************/
276/* general purpose functions ***************************************/
277/*********************************************************************/
278
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100279/* used to register some build option strings at boot. Set must_free to
280 * non-zero if the string must be freed upon exit.
281 */
282void hap_register_build_opts(const char *str, int must_free)
283{
284 struct build_opts_str *b;
285
286 b = calloc(1, sizeof(*b));
287 if (!b) {
288 fprintf(stderr, "out of memory\n");
289 exit(1);
290 }
291 b->str = str;
292 b->must_free = must_free;
293 LIST_ADDQ(&build_opts_list, &b->list);
294}
295
Willy Tarreaue6945732016-12-21 19:57:00 +0100296/* used to register some initialization functions to call after the checks. */
297void hap_register_post_check(int (*fct)())
298{
299 struct post_check_fct *b;
300
301 b = calloc(1, sizeof(*b));
302 if (!b) {
303 fprintf(stderr, "out of memory\n");
304 exit(1);
305 }
306 b->fct = fct;
307 LIST_ADDQ(&post_check_list, &b->list);
308}
309
Willy Tarreau05554e62016-12-21 20:46:26 +0100310/* used to register some de-initialization functions to call after everything
311 * has stopped.
312 */
313void hap_register_post_deinit(void (*fct)())
314{
315 struct post_deinit_fct *b;
316
317 b = calloc(1, sizeof(*b));
318 if (!b) {
319 fprintf(stderr, "out of memory\n");
320 exit(1);
321 }
322 b->fct = fct;
323 LIST_ADDQ(&post_deinit_list, &b->list);
324}
325
Christopher Faulet415f6112017-07-25 16:52:58 +0200326/* used to register some initialization functions to call for each thread. */
327void hap_register_per_thread_init(int (*fct)())
328{
329 struct per_thread_init_fct *b;
330
331 b = calloc(1, sizeof(*b));
332 if (!b) {
333 fprintf(stderr, "out of memory\n");
334 exit(1);
335 }
336 b->fct = fct;
337 LIST_ADDQ(&per_thread_init_list, &b->list);
338}
339
340/* used to register some de-initialization functions to call for each thread. */
341void hap_register_per_thread_deinit(void (*fct)())
342{
343 struct per_thread_deinit_fct *b;
344
345 b = calloc(1, sizeof(*b));
346 if (!b) {
347 fprintf(stderr, "out of memory\n");
348 exit(1);
349 }
350 b->fct = fct;
351 LIST_ADDQ(&per_thread_deinit_list, &b->list);
352}
353
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100354static void display_version()
Willy Tarreaubaaee002006-06-26 02:48:02 +0200355{
356 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreau65e94d12018-08-02 18:12:50 +0200357 printf("Copyright 2000-2018 Willy Tarreau <willy@haproxy.org>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200358}
359
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100360static void display_build_opts()
Willy Tarreau7b066db2007-12-02 11:28:59 +0100361{
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100362 struct build_opts_str *item;
363
Willy Tarreau7b066db2007-12-02 11:28:59 +0100364 printf("Build options :"
365#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100366 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100367#endif
368#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100369 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100370#endif
371#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100372 "\n CC = " BUILD_CC
373#endif
374#ifdef BUILD_CFLAGS
375 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100376#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100377#ifdef BUILD_OPTIONS
378 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100379#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200380 "\n\nDefault settings :"
381 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
382 "\n\n",
383 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200384
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100385 list_for_each_entry(item, &build_opts_list, list) {
386 puts(item->str);
387 }
388
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100389 putchar('\n');
390
Willy Tarreaube5b6852009-10-03 18:57:08 +0200391 list_pollers(stdout);
392 putchar('\n');
Christopher Faulet98d9fe22018-04-10 14:37:32 +0200393 list_mux_proto(stdout);
394 putchar('\n');
Christopher Fauletb3f4e142016-03-07 12:46:38 +0100395 list_filters(stdout);
396 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100397}
398
Willy Tarreaubaaee002006-06-26 02:48:02 +0200399/*
400 * This function prints the command line usage and exits
401 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100402static void usage(char *name)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200403{
404 display_version();
405 fprintf(stderr,
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200406 "Usage : %s [-f <cfgfile|cfgdir>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200407 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200408 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100409 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200410 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200411 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200412 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200413 " -D goes daemon ; -C changes to <dir> before loading files.\n"
William Lallemand095ba4c2017-06-01 17:38:50 +0200414 " -W master-worker mode.\n"
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100415#if defined(USE_SYSTEMD)
416 " -Ws master-worker mode with systemd notify support.\n"
417#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200418 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200419 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200420 " -n sets the maximum total # of connections (%d)\n"
421 " -m limits the usable amount of memory (in MB)\n"
422 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200423 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200424 " -p writes pids of all children to this file\n"
425#if defined(ENABLE_EPOLL)
426 " -de disables epoll() usage even when available\n"
427#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200428#if defined(ENABLE_KQUEUE)
429 " -dk disables kqueue() usage even when available\n"
430#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200431#if defined(ENABLE_POLL)
432 " -dp disables poll() usage even when available\n"
433#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200434#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100435 " -dS disables splice usage (broken on old kernels)\n"
436#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200437#if defined(USE_GETADDRINFO)
438 " -dG disables getaddrinfo() usage\n"
439#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000440#if defined(SO_REUSEPORT)
441 " -dR disables SO_REUSEPORT usage\n"
442#endif
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100443 " -dr ignores server address resolution failures\n"
Emeric Brun850efd52014-01-29 12:24:34 +0100444 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200445 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Olivier Houchardf73629d2017-04-05 22:33:04 +0200446 " -x <unix_socket> get listening sockets from a unix socket\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200447 "\n",
448 name, DEFAULT_MAXCONN, cfg_maxpconn);
449 exit(1);
450}
451
452
453
454/*********************************************************************/
455/* more specific functions ***************************************/
456/*********************************************************************/
457
William Lallemand73b85e72017-06-01 17:38:51 +0200458/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
459 * pids the signal was correctly delivered to.
460 */
461static int tell_old_pids(int sig)
462{
463 int p;
464 int ret = 0;
465 for (p = 0; p < nb_oldpids; p++)
466 if (kill(oldpids[p], sig) == 0)
467 ret++;
468 return ret;
469}
470
471/* return 1 if a pid is a current child otherwise 0 */
472
473int current_child(int pid)
474{
475 int i;
476
477 for (i = 0; i < global.nbproc; i++) {
478 if (children[i] == pid)
479 return 1;
480 }
481 return 0;
482}
483
484static void mworker_signalhandler(int signum)
485{
486 caught_signal = signum;
487}
488
489static void mworker_register_signals()
490{
491 struct sigaction sa;
492 /* Here we are not using the haproxy async way
493 for signals because it does not exists in
494 the master */
495 memset(&sa, 0, sizeof(struct sigaction));
496 sa.sa_handler = &mworker_signalhandler;
497 sigaction(SIGHUP, &sa, NULL);
498 sigaction(SIGUSR1, &sa, NULL);
499 sigaction(SIGUSR2, &sa, NULL);
500 sigaction(SIGINT, &sa, NULL);
501 sigaction(SIGTERM, &sa, NULL);
502}
503
504static void mworker_block_signals()
505{
506 sigset_t set;
507
508 sigemptyset(&set);
509 sigaddset(&set, SIGUSR1);
510 sigaddset(&set, SIGUSR2);
511 sigaddset(&set, SIGHUP);
512 sigaddset(&set, SIGINT);
513 sigaddset(&set, SIGTERM);
William Lallemand6e1796e2018-06-07 11:23:40 +0200514 ha_sigmask(SIG_SETMASK, &set, NULL);
William Lallemand73b85e72017-06-01 17:38:51 +0200515}
516
517static void mworker_unblock_signals()
518{
519 sigset_t set;
520
521 sigemptyset(&set);
522 sigaddset(&set, SIGUSR1);
523 sigaddset(&set, SIGUSR2);
524 sigaddset(&set, SIGHUP);
525 sigaddset(&set, SIGINT);
526 sigaddset(&set, SIGTERM);
William Lallemand6e1796e2018-06-07 11:23:40 +0200527 ha_sigmask(SIG_UNBLOCK, &set, NULL);
William Lallemand73b85e72017-06-01 17:38:51 +0200528}
529
530static void mworker_unregister_signals()
531{
532 signal(SIGINT, SIG_DFL);
533 signal(SIGTERM, SIG_DFL);
534 signal(SIGHUP, SIG_IGN);
535 signal(SIGUSR1, SIG_IGN);
536 signal(SIGUSR2, SIG_IGN);
537}
538
539/*
540 * Send signal to every known children.
541 */
542
543static void mworker_kill(int sig)
544{
545 int i;
546
547 tell_old_pids(sig);
548 if (children) {
549 for (i = 0; i < global.nbproc; i++)
550 kill(children[i], sig);
551 }
552}
553
Willy Tarreaubaaee002006-06-26 02:48:02 +0200554/*
William Lallemand75ea0a02017-11-15 19:02:58 +0100555 * Upon a reload, the master worker needs to close all listeners FDs but the mworker_pipe
556 * fd, and the FD provided by fd@
557 */
558static void mworker_cleanlisteners()
559{
560 struct listener *l, *l_next;
561 struct proxy *curproxy;
Willy Tarreau473cf5d2017-12-05 11:14:12 +0100562 struct peers *curpeers;
William Lallemand75ea0a02017-11-15 19:02:58 +0100563
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100564 for (curproxy = proxies_list; curproxy; curproxy = curproxy->next) {
Willy Tarreau473cf5d2017-12-05 11:14:12 +0100565 /* we might have to unbind some peers sections from some processes */
566 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
567 if (!curpeers->peers_fe)
568 continue;
569
570 stop_proxy(curpeers->peers_fe);
571 /* disable this peer section so that it kills itself */
572 signal_unregister_handler(curpeers->sighandler);
573 task_delete(curpeers->sync_task);
574 task_free(curpeers->sync_task);
575 curpeers->sync_task = NULL;
576 task_free(curpeers->peers_fe->task);
577 curpeers->peers_fe->task = NULL;
578 curpeers->peers_fe = NULL;
579 }
William Lallemand75ea0a02017-11-15 19:02:58 +0100580
581 list_for_each_entry_safe(l, l_next, &curproxy->conf.listeners, by_fe) {
582 /* does not close if the FD is inherited with fd@
583 * from the parent process */
584 if (!(l->options & LI_O_INHERITED)) {
585 close(l->fd);
586 LIST_DEL(&l->by_fe);
587 LIST_DEL(&l->by_bind);
588 free(l->name);
589 free(l->counters);
590 free(l);
591 }
592 }
593 }
594}
595
596
597/*
William Lallemand73b85e72017-06-01 17:38:51 +0200598 * remove a pid forom the olpid array and decrease nb_oldpids
599 * return 1 pid was found otherwise return 0
600 */
601
602int delete_oldpid(int pid)
603{
604 int i;
605
606 for (i = 0; i < nb_oldpids; i++) {
607 if (oldpids[i] == pid) {
608 oldpids[i] = oldpids[nb_oldpids - 1];
609 oldpids[nb_oldpids - 1] = 0;
610 nb_oldpids--;
611 return 1;
612 }
613 }
614 return 0;
615}
616
William Lallemand85b0bd92017-06-01 17:38:53 +0200617
618static void get_cur_unixsocket()
619{
620 /* if -x was used, try to update the stat socket if not available anymore */
621 if (global.stats_fe) {
622 struct bind_conf *bind_conf;
623
624 /* pass through all stats socket */
625 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
626 struct listener *l;
627
628 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
629
630 if (l->addr.ss_family == AF_UNIX &&
631 (bind_conf->level & ACCESS_FD_LISTENERS)) {
632 const struct sockaddr_un *un;
633
634 un = (struct sockaddr_un *)&l->addr;
635 /* priority to old_unixsocket */
636 if (!cur_unixsocket) {
637 cur_unixsocket = strdup(un->sun_path);
638 } else {
639 if (old_unixsocket && !strcmp(un->sun_path, old_unixsocket)) {
640 free(cur_unixsocket);
641 cur_unixsocket = strdup(old_unixsocket);
642 return;
643 }
644 }
645 }
646 }
647 }
648 }
649 if (!cur_unixsocket && old_unixsocket)
650 cur_unixsocket = strdup(old_unixsocket);
651}
652
William Lallemand73b85e72017-06-01 17:38:51 +0200653/*
654 * When called, this function reexec haproxy with -sf followed by current
655 * children PIDs and possibily old children PIDs if they didn't leave yet.
656 */
657static void mworker_reload()
658{
659 int next_argc = 0;
660 int j;
661 char *msg = NULL;
662
663 mworker_block_signals();
664 mworker_unregister_signals();
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100665#if defined(USE_SYSTEMD)
666 if (global.tune.options & GTUNE_USE_SYSTEMD)
667 sd_notify(0, "RELOADING=1");
668#endif
William Lallemand73b85e72017-06-01 17:38:51 +0200669 setenv("HAPROXY_MWORKER_REEXEC", "1", 1);
670
671 /* compute length */
672 while (next_argv[next_argc])
673 next_argc++;
674
William Lallemand85b0bd92017-06-01 17:38:53 +0200675 /* 1 for haproxy -sf, 2 for -x /socket */
676 next_argv = realloc(next_argv, (next_argc + 1 + 2 + global.nbproc + nb_oldpids + 1) * sizeof(char *));
William Lallemand73b85e72017-06-01 17:38:51 +0200677 if (next_argv == NULL)
678 goto alloc_error;
679
680
681 /* add -sf <PID>* to argv */
682 if (children || nb_oldpids > 0)
683 next_argv[next_argc++] = "-sf";
684 if (children) {
685 for (j = 0; j < global.nbproc; next_argc++,j++) {
686 next_argv[next_argc] = memprintf(&msg, "%d", children[j]);
687 if (next_argv[next_argc] == NULL)
688 goto alloc_error;
689 msg = NULL;
690 }
691 }
692 /* copy old process PIDs */
693 for (j = 0; j < nb_oldpids; next_argc++,j++) {
694 next_argv[next_argc] = memprintf(&msg, "%d", oldpids[j]);
695 if (next_argv[next_argc] == NULL)
696 goto alloc_error;
697 msg = NULL;
698 }
699 next_argv[next_argc] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200700
William Lallemand2bf6d622017-06-20 11:20:23 +0200701 /* add the -x option with the stat socket */
William Lallemand85b0bd92017-06-01 17:38:53 +0200702 if (cur_unixsocket) {
703
William Lallemand2bf6d622017-06-20 11:20:23 +0200704 next_argv[next_argc++] = "-x";
705 next_argv[next_argc++] = (char *)cur_unixsocket;
706 next_argv[next_argc++] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200707 }
708
Christopher Faulet767a84b2017-11-24 16:50:31 +0100709 ha_warning("Reexecuting Master process\n");
Tim Duesterhus0436ab72017-11-12 17:39:18 +0100710 execvp(next_argv[0], next_argv);
William Lallemand73b85e72017-06-01 17:38:51 +0200711
Christopher Faulet767a84b2017-11-24 16:50:31 +0100712 ha_warning("Failed to reexecute the master process [%d]: %s\n", pid, strerror(errno));
William Lallemand722d4ca2017-11-15 19:02:55 +0100713 return;
714
William Lallemand73b85e72017-06-01 17:38:51 +0200715alloc_error:
Christopher Faulet767a84b2017-11-24 16:50:31 +0100716 ha_warning("Failed to reexecute the master processs [%d]: Cannot allocate memory\n", pid);
William Lallemand73b85e72017-06-01 17:38:51 +0200717 return;
718}
719
720
721/*
722 * Wait for every children to exit
723 */
724
725static void mworker_wait()
726{
727 int exitpid = -1;
728 int status = 0;
729
William Lallemand2f8b31c2017-11-15 19:02:56 +0100730restart_wait:
731
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100732#if defined(USE_SYSTEMD)
733 if (global.tune.options & GTUNE_USE_SYSTEMD)
734 sd_notifyf(0, "READY=1\nMAINPID=%lu", (unsigned long)getpid());
735#endif
736
William Lallemand73b85e72017-06-01 17:38:51 +0200737 mworker_register_signals();
738 mworker_unblock_signals();
739
740 while (1) {
741
742 while (((exitpid = wait(&status)) == -1) && errno == EINTR) {
743 int sig = caught_signal;
744 if (sig == SIGUSR2 || sig == SIGHUP) {
745 mworker_reload();
William Lallemand2f8b31c2017-11-15 19:02:56 +0100746 /* should reach there only if it fail */
747 goto restart_wait;
William Lallemand73b85e72017-06-01 17:38:51 +0200748 } else {
Tim Duesterhusd6942c82017-11-20 15:58:35 +0100749#if defined(USE_SYSTEMD)
750 if ((global.tune.options & GTUNE_USE_SYSTEMD) && (sig == SIGUSR1 || sig == SIGTERM)) {
751 sd_notify(0, "STOPPING=1");
752 }
753#endif
Christopher Faulet767a84b2017-11-24 16:50:31 +0100754 ha_warning("Exiting Master process...\n");
William Lallemand73b85e72017-06-01 17:38:51 +0200755 mworker_kill(sig);
756 mworker_unregister_signals();
757 }
758 caught_signal = 0;
759 }
760
761 if (exitpid == -1 && errno == ECHILD) {
Tim Duesterhusd16f4502017-12-05 18:14:13 +0100762 ha_warning("All workers exited. Exiting... (%d)\n", status);
William Lallemandcb11fd22017-06-01 17:38:52 +0200763 atexit_flag = 0;
William Lallemand73b85e72017-06-01 17:38:51 +0200764 exit(status); /* parent must leave using the latest status code known */
765 }
766
767 if (WIFEXITED(status))
768 status = WEXITSTATUS(status);
769 else if (WIFSIGNALED(status))
770 status = 128 + WTERMSIG(status);
771 else if (WIFSTOPPED(status))
772 status = 128 + WSTOPSIG(status);
773 else
774 status = 255;
775
776 if (!children) {
Tim Duesterhusd16f4502017-12-05 18:14:13 +0100777 ha_warning("Worker %d exited with code %d\n", exitpid, status);
William Lallemand73b85e72017-06-01 17:38:51 +0200778 } else {
779 /* check if exited child was in the current children list */
780 if (current_child(exitpid)) {
Tim Duesterhusd16f4502017-12-05 18:14:13 +0100781 ha_alert("Current worker %d exited with code %d\n", exitpid, status);
William Lallemand69f9b3b2017-06-01 17:38:54 +0200782 if (status != 0 && status != 130 && status != 143
William Lallemand4cfede82017-11-24 22:02:34 +0100783 && !(global.tune.options & GTUNE_NOEXIT_ONFAILURE)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100784 ha_alert("exit-on-failure: killing every workers with SIGTERM\n");
William Lallemand69f9b3b2017-06-01 17:38:54 +0200785 mworker_kill(SIGTERM);
786 }
William Lallemand73b85e72017-06-01 17:38:51 +0200787 } else {
Tim Duesterhusd16f4502017-12-05 18:14:13 +0100788 ha_warning("Former worker %d exited with code %d\n", exitpid, status);
William Lallemand73b85e72017-06-01 17:38:51 +0200789 delete_oldpid(exitpid);
790 }
791 }
792 }
793}
794
William Lallemandcb11fd22017-06-01 17:38:52 +0200795
796/*
797 * Reexec the process in failure mode, instead of exiting
798 */
799void reexec_on_failure()
800{
801 if (!atexit_flag)
802 return;
803
804 setenv("HAPROXY_MWORKER_WAIT_ONLY", "1", 1);
805
Christopher Faulet767a84b2017-11-24 16:50:31 +0100806 ha_warning("Reexecuting Master process in waitpid mode\n");
William Lallemandcb11fd22017-06-01 17:38:52 +0200807 mworker_reload();
William Lallemandcb11fd22017-06-01 17:38:52 +0200808}
William Lallemand73b85e72017-06-01 17:38:51 +0200809
810
811/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200812 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
813 * a signal zero to all subscribers. This means that it's as easy as
814 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200815 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100816static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200817{
818 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200819 signal_unregister_handler(sh);
Willy Tarreaubafbe012017-11-24 17:34:44 +0100820 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200821}
822
823/*
824 * upon SIGTTOU, we pause everything
825 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100826static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200827{
828 pause_proxies();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100829 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200830}
831
832/*
833 * upon SIGTTIN, let's have a soft stop.
834 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100835static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200836{
Willy Tarreaube58c382011-07-24 18:28:10 +0200837 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200838}
839
840/*
841 * this function dumps every server's state when the process receives SIGHUP.
842 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100843static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200844{
Olivier Houchardfbc74e82017-11-24 16:54:05 +0100845 struct proxy *p = proxies_list;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200846
Christopher Faulet767a84b2017-11-24 16:50:31 +0100847 ha_warning("SIGHUP received, dumping servers states.\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200848 while (p) {
849 struct server *s = p->srv;
850
851 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
852 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100853 chunk_printf(&trash,
854 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
855 p->id, s->id,
Emeric Brun52a91d32017-08-31 14:41:55 +0200856 (s->cur_state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100857 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200858 ha_warning("%s\n", trash.area);
859 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200860 s = s->next;
861 }
862
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200863 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
864 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100865 chunk_printf(&trash,
866 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
867 p->id,
868 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 +0200869 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100870 chunk_printf(&trash,
871 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
872 p->id,
873 (p->srv_bck) ? "is running on backup servers" : "has no server available",
874 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 +0200875 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100876 chunk_printf(&trash,
877 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
878 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
879 p->id, p->srv_act, p->srv_bck,
880 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 +0200881 }
Willy Tarreau843b7cb2018-07-13 10:54:26 +0200882 ha_warning("%s\n", trash.area);
883 send_log(p, LOG_NOTICE, "%s\n", trash.area);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200884
885 p = p->next;
886 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200887}
888
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100889static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200890{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200891 /* dump memory usage then free everything possible */
892 dump_pools();
Willy Tarreaubafbe012017-11-24 17:34:44 +0100893 pool_gc(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200894}
895
William Lallemande1340412017-12-28 16:09:36 +0100896/*
897 * This function dup2 the stdio FDs (0,1,2) with <fd>, then closes <fd>
898 * If <fd> < 0, it opens /dev/null and use it to dup
899 *
900 * In the case of chrooting, you have to open /dev/null before the chroot, and
901 * pass the <fd> to this function
902 */
903static void stdio_quiet(int fd)
904{
905 if (fd < 0)
906 fd = open("/dev/null", O_RDWR, 0);
907
908 if (fd > -1) {
909 fclose(stdin);
910 fclose(stdout);
911 fclose(stderr);
912
913 dup2(fd, 0);
914 dup2(fd, 1);
915 dup2(fd, 2);
916 if (fd > 2)
917 close(fd);
918 return;
919 }
920
921 ha_alert("Cannot open /dev/null\n");
922 exit(EXIT_FAILURE);
923}
924
925
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200926/* This function check if cfg_cfgfiles containes directories.
927 * If it find one, it add all the files (and only files) it containes
928 * in cfg_cfgfiles in place of the directory (and remove the directory).
929 * It add the files in lexical order.
930 * It add only files with .cfg extension.
931 * It doesn't add files with name starting with '.'
932 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100933static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200934{
935 struct wordlist *wl, *wlb;
936 char *err = NULL;
937
938 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
939 struct stat file_stat;
940 struct dirent **dir_entries = NULL;
941 int dir_entries_nb;
942 int dir_entries_it;
943
944 if (stat(wl->s, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100945 ha_alert("Cannot open configuration file/directory %s : %s\n",
946 wl->s,
947 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200948 exit(1);
949 }
950
951 if (!S_ISDIR(file_stat.st_mode))
952 continue;
953
954 /* from this point wl->s is a directory */
955
956 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
957 if (dir_entries_nb < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100958 ha_alert("Cannot open configuration directory %s : %s\n",
959 wl->s,
960 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200961 exit(1);
962 }
963
964 /* for each element in the directory wl->s */
965 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
966 struct dirent *dir_entry = dir_entries[dir_entries_it];
967 char *filename = NULL;
968 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
969
970 /* don't add filename that begin with .
971 * only add filename with .cfg extention
972 */
973 if (dir_entry->d_name[0] == '.' ||
974 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
975 goto next_dir_entry;
976
977 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100978 ha_alert("Cannot load configuration files %s : out of memory.\n",
979 filename);
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200980 exit(1);
981 }
982
983 if (stat(filename, &file_stat)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100984 ha_alert("Cannot open configuration file %s : %s\n",
985 wl->s,
986 strerror(errno));
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200987 exit(1);
988 }
989
990 /* don't add anything else than regular file in cfg_cfgfiles
991 * this way we avoid loops
992 */
993 if (!S_ISREG(file_stat.st_mode))
994 goto next_dir_entry;
995
996 if (!list_append_word(&wl->list, filename, &err)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +0100997 ha_alert("Cannot load configuration files %s : %s\n",
998 filename,
999 err);
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001000 exit(1);
1001 }
1002
1003next_dir_entry:
1004 free(filename);
1005 free(dir_entry);
1006 }
1007
1008 free(dir_entries);
1009
1010 /* remove the current directory (wl) from cfg_cfgfiles */
1011 free(wl->s);
1012 LIST_DEL(&wl->list);
1013 free(wl);
1014 }
1015
1016 free(err);
1017}
1018
Olivier Houchardf73629d2017-04-05 22:33:04 +02001019static int get_old_sockets(const char *unixsocket)
1020{
1021 char *cmsgbuf = NULL, *tmpbuf = NULL;
1022 int *tmpfd = NULL;
1023 struct sockaddr_un addr;
1024 struct cmsghdr *cmsg;
1025 struct msghdr msghdr;
1026 struct iovec iov;
1027 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +02001028 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +02001029 int sock = -1;
1030 int ret = -1;
1031 int ret2 = -1;
1032 int fd_nb;
1033 int got_fd = 0;
1034 int i = 0;
1035 size_t maxoff = 0, curoff = 0;
1036
1037 memset(&msghdr, 0, sizeof(msghdr));
1038 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
1039 if (!cmsgbuf) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001040 ha_warning("Failed to allocate memory to send sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001041 goto out;
1042 }
1043 sock = socket(PF_UNIX, SOCK_STREAM, 0);
1044 if (sock < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001045 ha_warning("Failed to connect to the old process socket '%s'\n",
1046 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001047 goto out;
1048 }
1049 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path));
1050 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
1051 addr.sun_family = PF_UNIX;
1052 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
1053 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001054 ha_warning("Failed to connect to the old process socket '%s'\n",
1055 unixsocket);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001056 goto out;
1057 }
Olivier Houchard54740872017-04-06 14:45:14 +02001058 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001059 iov.iov_base = &fd_nb;
1060 iov.iov_len = sizeof(fd_nb);
1061 msghdr.msg_iov = &iov;
1062 msghdr.msg_iovlen = 1;
1063 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
1064 /* First, get the number of file descriptors to be received */
1065 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001066 ha_warning("Failed to get the number of sockets to be transferred !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001067 goto out;
1068 }
1069 if (fd_nb == 0) {
1070 ret = 0;
1071 goto out;
1072 }
Olivier Houchardf143b802017-11-04 15:13:01 +01001073 tmpbuf = malloc(fd_nb * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int)));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001074 if (tmpbuf == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001075 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001076 goto out;
1077 }
1078 tmpfd = malloc(fd_nb * sizeof(int));
1079 if (tmpfd == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001080 ha_warning("Failed to allocate memory while receiving sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001081 goto out;
1082 }
1083 msghdr.msg_control = cmsgbuf;
1084 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
Olivier Houchardf143b802017-11-04 15:13:01 +01001085 iov.iov_len = MAX_SEND_FD * (1 + MAXPATHLEN + 1 + IFNAMSIZ + sizeof(int));
Olivier Houchardf73629d2017-04-05 22:33:04 +02001086 do {
1087 int ret3;
1088
1089 iov.iov_base = tmpbuf + curoff;
1090 ret = recvmsg(sock, &msghdr, 0);
1091 if (ret == -1 && errno == EINTR)
1092 continue;
1093 if (ret <= 0)
1094 break;
1095 /* Send an ack to let the sender know we got the sockets
1096 * and it can send some more
1097 */
1098 do {
1099 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
1100 } while (ret3 == -1 && errno == EINTR);
1101 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
1102 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
1103 if (cmsg->cmsg_level == SOL_SOCKET &&
1104 cmsg->cmsg_type == SCM_RIGHTS) {
1105 size_t totlen = cmsg->cmsg_len -
1106 CMSG_LEN(0);
1107 if (totlen / sizeof(int) + got_fd > fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001108 ha_warning("Got to many sockets !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001109 goto out;
1110 }
1111 /*
1112 * Be paranoid and use memcpy() to avoid any
1113 * potential alignement issue.
1114 */
1115 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
1116 got_fd += totlen / sizeof(int);
1117 }
1118 }
1119 curoff += ret;
1120 } while (got_fd < fd_nb);
1121
1122 if (got_fd != fd_nb) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001123 ha_warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
1124 fd_nb, got_fd);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001125 goto out;
1126 }
1127 maxoff = curoff;
1128 curoff = 0;
1129 for (i = 0; i < got_fd; i++) {
1130 int fd = tmpfd[i];
1131 socklen_t socklen;
1132 int len;
1133
1134 xfer_sock = calloc(1, sizeof(*xfer_sock));
1135 if (!xfer_sock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001136 ha_warning("Failed to allocate memory in get_old_sockets() !\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001137 break;
1138 }
1139 xfer_sock->fd = -1;
1140
1141 socklen = sizeof(xfer_sock->addr);
1142 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001143 ha_warning("Failed to get socket address\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001144 free(xfer_sock);
Olivier Houchardbe7b1ce2017-07-17 17:25:33 +02001145 xfer_sock = NULL;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001146 continue;
1147 }
1148 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001149 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001150 goto out;
1151 }
1152 len = tmpbuf[curoff++];
1153 if (len > 0) {
1154 /* We have a namespace */
1155 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001156 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001157 goto out;
1158 }
1159 xfer_sock->namespace = malloc(len + 1);
1160 if (!xfer_sock->namespace) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001161 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001162 goto out;
1163 }
1164 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
1165 xfer_sock->namespace[len] = 0;
1166 curoff += len;
1167 }
1168 if (curoff >= maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001169 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001170 goto out;
1171 }
1172 len = tmpbuf[curoff++];
1173 if (len > 0) {
1174 /* We have an interface */
1175 if (curoff + len > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001176 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001177 goto out;
1178 }
1179 xfer_sock->iface = malloc(len + 1);
1180 if (!xfer_sock->iface) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001181 ha_warning("Failed to allocate memory while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001182 goto out;
1183 }
1184 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
Olivier Houchard33e083c2018-03-15 17:48:49 +01001185 xfer_sock->iface[len] = 0;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001186 curoff += len;
1187 }
1188 if (curoff + sizeof(int) > maxoff) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001189 ha_warning("Inconsistency while transferring sockets\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001190 goto out;
1191 }
1192 memcpy(&xfer_sock->options, &tmpbuf[curoff],
1193 sizeof(xfer_sock->options));
1194 curoff += sizeof(xfer_sock->options);
1195
1196 xfer_sock->fd = fd;
1197 if (xfer_sock_list)
1198 xfer_sock_list->prev = xfer_sock;
1199 xfer_sock->next = xfer_sock_list;
1200 xfer_sock->prev = NULL;
1201 xfer_sock_list = xfer_sock;
1202 xfer_sock = NULL;
1203 }
1204
1205 ret2 = 0;
1206out:
1207 /* If we failed midway make sure to close the remaining
1208 * file descriptors
1209 */
1210 if (tmpfd != NULL && i < got_fd) {
1211 for (; i < got_fd; i++) {
1212 close(tmpfd[i]);
1213 }
1214 }
1215 free(tmpbuf);
1216 free(tmpfd);
1217 free(cmsgbuf);
1218 if (sock != -1)
1219 close(sock);
1220 if (xfer_sock) {
1221 free(xfer_sock->namespace);
1222 free(xfer_sock->iface);
1223 if (xfer_sock->fd != -1)
1224 close(xfer_sock->fd);
1225 free(xfer_sock);
1226 }
1227 return (ret2);
1228}
1229
Willy Tarreaubaaee002006-06-26 02:48:02 +02001230/*
William Lallemand73b85e72017-06-01 17:38:51 +02001231 * copy and cleanup the current argv
1232 * Remove the -sf /-st parameters
1233 * Return an allocated copy of argv
1234 */
1235
1236static char **copy_argv(int argc, char **argv)
1237{
1238 char **newargv;
William Lallemand2bf6d622017-06-20 11:20:23 +02001239 int i = 0, j = 0;
William Lallemand73b85e72017-06-01 17:38:51 +02001240
1241 newargv = calloc(argc + 2, sizeof(char *));
1242 if (newargv == NULL) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001243 ha_warning("Cannot allocate memory\n");
William Lallemand73b85e72017-06-01 17:38:51 +02001244 return NULL;
1245 }
1246
William Lallemand2bf6d622017-06-20 11:20:23 +02001247 while (i < argc) {
1248 /* -sf or -st or -x */
William Lallemand29f690c2018-01-09 23:12:27 +01001249 if (i > 0 && argv[i][0] == '-' &&
1250 ((argv[i][1] == 's' && (argv[i][2] == 'f' || argv[i][2] == 't')) || argv[i][1] == 'x' )) {
William Lallemand2bf6d622017-06-20 11:20:23 +02001251 /* list of pids to finish ('f') or terminate ('t') or unix socket (-x) */
William Lallemand73b85e72017-06-01 17:38:51 +02001252 i++;
1253 while (i < argc && argv[i][0] != '-') {
1254 i++;
1255 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001256 continue;
William Lallemand73b85e72017-06-01 17:38:51 +02001257 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001258
1259 newargv[j++] = argv[i++];
William Lallemand73b85e72017-06-01 17:38:51 +02001260 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001261
William Lallemand73b85e72017-06-01 17:38:51 +02001262 return newargv;
1263}
1264
1265/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001266 * This function initializes all the necessary variables. It only returns
1267 * if everything is OK. If something fails, it exits.
1268 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001269static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001270{
Willy Tarreaubaaee002006-06-26 02:48:02 +02001271 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001272 char *tmp;
1273 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +02001274 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +02001275 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +01001276 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +00001277 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +02001278 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +02001279 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +01001280 struct post_check_fct *pcf;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001281
Christopher Faulete3a5e352017-10-24 13:53:54 +02001282 global.mode = MODE_STARTING;
William Lallemand73b85e72017-06-01 17:38:51 +02001283 next_argv = copy_argv(argc, argv);
1284
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001285 if (!init_trash_buffers(1)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001286 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet748919a2017-07-26 14:59:46 +02001287 exit(1);
1288 }
David du Colombier7af46052012-05-16 14:16:48 +02001289
Emeric Brun2b920a12010-09-23 18:30:22 +02001290 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
1291 * the string in case of truncation, and at least FreeBSD appears not to do
1292 * it.
1293 */
1294 memset(hostname, 0, sizeof(hostname));
1295 gethostname(hostname, sizeof(hostname) - 1);
1296 memset(localpeer, 0, sizeof(localpeer));
1297 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
William Lallemanddaf4cd22018-04-17 16:46:13 +02001298 setenv("HAPROXY_LOCALPEER", localpeer, 1);
Emeric Brun2b920a12010-09-23 18:30:22 +02001299
Willy Tarreaubaaee002006-06-26 02:48:02 +02001300 /*
1301 * Initialize the previously static variables.
1302 */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001303
Willy Tarreau173d9952018-01-26 21:48:23 +01001304 totalconn = actconn = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001305 killed = 0;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001306
Willy Tarreaubaaee002006-06-26 02:48:02 +02001307
1308#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +01001309 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001310#endif
1311
Benoit GARNIERb413c2a2016-03-27 11:08:03 +02001312 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001313 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001314 start_date = now;
1315
Willy Tarreau84310e22014-02-14 11:59:04 +01001316 srandom(now_ms - getpid());
1317
Dragan Dosen835b9212016-02-12 13:23:03 +01001318 init_log();
Willy Tarreau29857942009-05-10 09:01:21 +02001319 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +01001320 if (init_acl() != 0)
1321 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001322 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +02001323 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +02001324 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001325 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +02001326 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001327 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +01001328 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001329
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001330 /* Initialise lua. */
1331 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001332
Christopher Fauletff2613e2016-11-09 11:36:17 +01001333 /* Initialize process vars */
1334 vars_init(&global.vars, SCOPE_PROC);
1335
Willy Tarreau43b78992009-01-25 15:42:27 +01001336 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001337#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001338 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001339#endif
1340#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001341 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001342#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001343#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +01001344 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001345#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001346#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001347 global.tune.options |= GTUNE_USE_SPLICE;
1348#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001349#if defined(USE_GETADDRINFO)
1350 global.tune.options |= GTUNE_USE_GAI;
1351#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001352#if defined(SO_REUSEPORT)
1353 global.tune.options |= GTUNE_USE_REUSEPORT;
1354#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001355
1356 pid = getpid();
1357 progname = *argv;
1358 while ((tmp = strchr(progname, '/')) != NULL)
1359 progname = tmp + 1;
1360
Kevinm48936af2010-12-22 16:08:21 +00001361 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +02001362 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +00001363
Willy Tarreaubaaee002006-06-26 02:48:02 +02001364 argc--; argv++;
1365 while (argc > 0) {
1366 char *flag;
1367
1368 if (**argv == '-') {
1369 flag = *argv+1;
1370
1371 /* 1 arg */
1372 if (*flag == 'v') {
1373 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +01001374 if (flag[1] == 'v') /* -vv */
1375 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001376 exit(0);
1377 }
1378#if defined(ENABLE_EPOLL)
1379 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +01001380 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001381#endif
1382#if defined(ENABLE_POLL)
1383 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +01001384 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001385#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +02001386#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001387 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +01001388 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001389#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001390#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001391 else if (*flag == 'd' && flag[1] == 'S')
1392 global.tune.options &= ~GTUNE_USE_SPLICE;
1393#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001394#if defined(USE_GETADDRINFO)
1395 else if (*flag == 'd' && flag[1] == 'G')
1396 global.tune.options &= ~GTUNE_USE_GAI;
1397#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001398#if defined(SO_REUSEPORT)
1399 else if (*flag == 'd' && flag[1] == 'R')
1400 global.tune.options &= ~GTUNE_USE_REUSEPORT;
1401#endif
Emeric Brun850efd52014-01-29 12:24:34 +01001402 else if (*flag == 'd' && flag[1] == 'V')
1403 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001404 else if (*flag == 'V')
1405 arg_mode |= MODE_VERBOSE;
1406 else if (*flag == 'd' && flag[1] == 'b')
1407 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +02001408 else if (*flag == 'd' && flag[1] == 'M')
1409 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +01001410 else if (*flag == 'd' && flag[1] == 'r')
1411 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001412 else if (*flag == 'd')
1413 arg_mode |= MODE_DEBUG;
1414 else if (*flag == 'c')
1415 arg_mode |= MODE_CHECK;
William Lallemand095ba4c2017-06-01 17:38:50 +02001416 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +02001417 arg_mode |= MODE_DAEMON;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001418 else if (*flag == 'W' && flag[1] == 's') {
Lukas Tribusf46bf952017-11-21 12:39:34 +01001419 arg_mode |= MODE_MWORKER | MODE_FOREGROUND;
Tim Duesterhusd6942c82017-11-20 15:58:35 +01001420#if defined(USE_SYSTEMD)
1421 global.tune.options |= GTUNE_USE_SYSTEMD;
1422#else
Christopher Faulet767a84b2017-11-24 16:50:31 +01001423 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 +01001424 usage(progname);
1425#endif
1426 }
William Lallemand095ba4c2017-06-01 17:38:50 +02001427 else if (*flag == 'W')
1428 arg_mode |= MODE_MWORKER;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001429 else if (*flag == 'q')
1430 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001431 else if (*flag == 'x') {
William Lallemand45eff442017-06-19 15:57:55 +02001432 if (argc <= 1 || argv[1][0] == '-') {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001433 ha_alert("Unix socket path expected with the -x flag\n\n");
William Lallemand45eff442017-06-19 15:57:55 +02001434 usage(progname);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001435 }
William Lallemand4fc09692017-06-19 16:37:19 +02001436 if (old_unixsocket)
Christopher Faulet767a84b2017-11-24 16:50:31 +01001437 ha_warning("-x option already set, overwriting the value\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001438 old_unixsocket = argv[1];
William Lallemand4fc09692017-06-19 16:37:19 +02001439
Olivier Houchardf73629d2017-04-05 22:33:04 +02001440 argv++;
1441 argc--;
1442 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001443 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
1444 /* list of pids to finish ('f') or terminate ('t') */
1445
1446 if (flag[1] == 'f')
1447 oldpids_sig = SIGUSR1; /* finish then exit */
1448 else
1449 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001450 while (argc > 1 && argv[1][0] != '-') {
Chris Lane236062f2018-02-05 23:15:44 +00001451 char * endptr = NULL;
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001452 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
1453 if (!oldpids) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001454 ha_alert("Cannot allocate old pid : out of memory.\n");
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001455 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001456 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001457 argc--; argv++;
Chris Lane236062f2018-02-05 23:15:44 +00001458 errno = 0;
1459 oldpids[nb_oldpids] = strtol(*argv, &endptr, 10);
1460 if (errno) {
1461 ha_alert("-%2s option: failed to parse {%s}: %s\n",
1462 flag,
1463 *argv, strerror(errno));
1464 exit(1);
1465 } else if (endptr && strlen(endptr)) {
1466 while (isspace(*endptr)) endptr++;
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001467 if (*endptr != 0) {
Chris Lane236062f2018-02-05 23:15:44 +00001468 ha_alert("-%2s option: some bytes unconsumed in PID list {%s}\n",
1469 flag, endptr);
1470 exit(1);
Aurélien Nephtali39b89882018-02-17 20:53:11 +01001471 }
Chris Lane236062f2018-02-05 23:15:44 +00001472 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001473 if (oldpids[nb_oldpids] <= 0)
1474 usage(progname);
1475 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001476 }
1477 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001478 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
1479 /* now that's a cfgfile list */
1480 argv++; argc--;
1481 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001482 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001483 ha_alert("Cannot load configuration file/directory %s : %s\n",
1484 *argv,
1485 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +02001486 exit(1);
1487 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001488 argv++; argc--;
1489 }
1490 break;
1491 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001492 else { /* >=2 args */
1493 argv++; argc--;
1494 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001495 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001496
1497 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +02001498 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001499 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +01001500 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001501 case 'N' : cfg_maxpconn = atol(*argv); break;
William Lallemanddaf4cd22018-04-17 16:46:13 +02001502 case 'L' :
1503 strncpy(localpeer, *argv, sizeof(localpeer) - 1);
1504 setenv("HAPROXY_LOCALPEER", localpeer, 1);
1505 break;
Willy Tarreau5d01a632009-06-22 16:02:30 +02001506 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +02001507 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001508 ha_alert("Cannot load configuration file/directory %s : %s\n",
1509 *argv,
1510 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +02001511 exit(1);
1512 }
Willy Tarreau5d01a632009-06-22 16:02:30 +02001513 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001514 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001515 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001516 }
1517 }
1518 }
1519 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001520 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001521 argv++; argc--;
1522 }
1523
Christopher Faulete3a5e352017-10-24 13:53:54 +02001524 global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
1525 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001526
William Lallemandcb11fd22017-06-01 17:38:52 +02001527 /* Master workers wait mode */
1528 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_WAIT_ONLY") != NULL)) {
1529
1530 unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
1531 mworker_wait();
1532 }
1533
1534 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") != NULL)) {
1535 atexit_flag = 1;
1536 atexit(reexec_on_failure);
1537 }
1538
Willy Tarreau576132e2011-09-10 19:26:56 +02001539 if (change_dir && chdir(change_dir) < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001540 ha_alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
Willy Tarreau576132e2011-09-10 19:26:56 +02001541 exit(1);
1542 }
1543
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001544 /* handle cfgfiles that are actualy directories */
1545 cfgfiles_expand_directories();
1546
1547 if (LIST_ISEMPTY(&cfg_cfgfiles))
1548 usage(progname);
1549
Willy Tarreaubaaee002006-06-26 02:48:02 +02001550 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001551
1552 init_default_instance();
1553
Willy Tarreau477ecd82010-01-03 21:12:30 +01001554 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +01001555 int ret;
1556
Willy Tarreau477ecd82010-01-03 21:12:30 +01001557 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +01001558 if (ret == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001559 ha_alert("Could not open configuration file %s : %s\n",
1560 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +01001561 exit(1);
1562 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +01001563 if (ret & (ERR_ABORT|ERR_FATAL))
Christopher Faulet767a84b2017-11-24 16:50:31 +01001564 ha_alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +01001565 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +02001566 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +02001567 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001568 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001569
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001570 /* do not try to resolve arguments nor to spot inconsistencies when
1571 * the configuration contains fatal errors caused by files not found
1572 * or failed memory allocations.
1573 */
1574 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001575 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001576 exit(1);
1577 }
1578
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +01001579 pattern_finalize_config();
1580
Willy Tarreaubb925012009-07-23 13:36:36 +02001581 err_code |= check_config_validity();
1582 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001583 ha_alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001584 exit(1);
1585 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001586
Willy Tarreau70060452015-12-14 12:46:07 +01001587 /* recompute the amount of per-process memory depending on nbproc and
1588 * the shared SSL cache size (allowed to exist in all processes).
1589 */
1590 if (global.rlimit_memmax_all) {
1591#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
1592 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
1593
1594 global.rlimit_memmax =
1595 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
1596 ssl_cache_bytes) / global.nbproc +
1597 ssl_cache_bytes + 1048575LL) / 1048576LL;
1598#else
1599 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
1600#endif
1601 }
1602
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001603#ifdef CONFIG_HAP_NS
1604 err_code |= netns_init();
1605 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001606 ha_alert("Failed to initialize namespace support.\n");
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001607 exit(1);
1608 }
1609#endif
1610
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001611 /* Apply server states */
1612 apply_server_state();
1613
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001614 for (px = proxies_list; px; px = px->next)
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001615 srv_compute_all_admin_states(px);
1616
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001617 /* Apply servers' configured address */
1618 err_code |= srv_init_addr();
1619 if (err_code & (ERR_ABORT|ERR_FATAL)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001620 ha_alert("Failed to initialize server(s) addr.\n");
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001621 exit(1);
1622 }
1623
Willy Tarreaubaaee002006-06-26 02:48:02 +02001624 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001625 struct peers *pr;
1626 struct proxy *px;
1627
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001628 for (pr = cfg_peers; pr; pr = pr->next)
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001629 if (pr->peers_fe)
1630 break;
1631
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001632 for (px = proxies_list; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02001633 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001634 break;
1635
1636 if (pr || px) {
1637 /* At least one peer or one listener has been found */
1638 qfprintf(stdout, "Configuration file is valid\n");
1639 exit(0);
1640 }
1641 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
1642 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001643 }
1644
Emeric Brunc60def82017-09-27 14:59:38 +02001645 global_listener_queue_task = task_new(MAX_THREADS_MASK);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001646 if (!global_listener_queue_task) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001647 ha_alert("Out of memory when initializing global task\n");
Willy Tarreaue9b26022011-08-01 20:57:55 +02001648 exit(1);
1649 }
1650 /* very simple initialization, users will queue the task if needed */
1651 global_listener_queue_task->context = NULL; /* not even a context! */
1652 global_listener_queue_task->process = manage_global_listener_queue;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001653
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001654 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02001655 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02001656
Willy Tarreaue6945732016-12-21 19:57:00 +01001657 list_for_each_entry(pcf, &post_check_list, list) {
1658 err_code |= pcf->fct();
1659 if (err_code & (ERR_ABORT|ERR_FATAL))
1660 exit(1);
1661 }
1662
Willy Tarreaubaaee002006-06-26 02:48:02 +02001663 if (cfg_maxconn > 0)
1664 global.maxconn = cfg_maxconn;
1665
1666 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02001667 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001668 global.pidfile = strdup(cfg_pidfile);
1669 }
1670
Willy Tarreaud0256482015-01-15 21:45:22 +01001671 /* Now we want to compute the maxconn and possibly maxsslconn values.
1672 * It's a bit tricky. If memmax is not set, maxconn defaults to
1673 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
1674 *
1675 * If memmax is set, then it depends on which values are set. If
1676 * maxsslconn is set, we use memmax to determine how many cleartext
1677 * connections may be added, and set maxconn to the sum of the two.
1678 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1679 * the remaining amount of memory between memmax and the cleartext
1680 * connections. If neither are set, then it is considered that all
1681 * connections are SSL-capable, and maxconn is computed based on this,
1682 * then maxsslconn accordingly. We need to know if SSL is used on the
1683 * frontends, backends, or both, because when it's used on both sides,
1684 * we need twice the value for maxsslconn, but we only count the
1685 * handshake once since it is not performed on the two sides at the
1686 * same time (frontend-side is terminated before backend-side begins).
1687 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001688 * ssl_handshake_cost during its initialization. In any case, if
1689 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1690 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001691 */
1692 if (!global.rlimit_memmax) {
1693 if (global.maxconn == 0) {
1694 global.maxconn = DEFAULT_MAXCONN;
1695 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1696 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1697 }
1698 }
1699#ifdef USE_OPENSSL
1700 else if (!global.maxconn && !global.maxsslconn &&
1701 (global.ssl_used_frontend || global.ssl_used_backend)) {
1702 /* memmax is set, compute everything automatically. Here we want
1703 * to ensure that all SSL connections will be served. We take
1704 * care of the number of sides where SSL is used, and consider
1705 * the worst case : SSL used on both sides and doing a handshake
1706 * simultaneously. Note that we can't have more than maxconn
1707 * handshakes at a time by definition, so for the worst case of
1708 * two SSL conns per connection, we count a single handshake.
1709 */
1710 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1711 int64_t mem = global.rlimit_memmax * 1048576ULL;
1712
1713 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1714 mem -= global.maxzlibmem;
1715 mem = mem * MEM_USABLE_RATIO;
1716
1717 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001718 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001719 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1720 global.ssl_handshake_max_cost); // 1 handshake per connection max
1721
1722 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001723#ifdef SYSTEM_MAXCONN
1724 if (global.maxconn > DEFAULT_MAXCONN)
1725 global.maxconn = DEFAULT_MAXCONN;
1726#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001727 global.maxsslconn = sides * global.maxconn;
1728 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1729 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1730 global.maxconn, global.maxsslconn);
1731 }
1732 else if (!global.maxsslconn &&
1733 (global.ssl_used_frontend || global.ssl_used_backend)) {
1734 /* memmax and maxconn are known, compute maxsslconn automatically.
1735 * maxsslconn being forced, we don't know how many of it will be
1736 * on each side if both sides are being used. The worst case is
1737 * when all connections use only one SSL instance because
1738 * handshakes may be on two sides at the same time.
1739 */
1740 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1741 int64_t mem = global.rlimit_memmax * 1048576ULL;
1742 int64_t sslmem;
1743
1744 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1745 mem -= global.maxzlibmem;
1746 mem = mem * MEM_USABLE_RATIO;
1747
Willy Tarreau87b09662015-04-03 00:22:06 +02001748 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001749 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1750 global.maxsslconn = round_2dig(global.maxsslconn);
1751
1752 if (sslmem <= 0 || global.maxsslconn < sides) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001753 ha_alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1754 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1755 "without SSL is %d, but %d was found and SSL is in use.\n",
1756 global.rlimit_memmax,
1757 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
1758 global.maxconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001759 exit(1);
1760 }
1761
1762 if (global.maxsslconn > sides * global.maxconn)
1763 global.maxsslconn = sides * global.maxconn;
1764
1765 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1766 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1767 }
1768#endif
1769 else if (!global.maxconn) {
1770 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1771 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1772 int64_t mem = global.rlimit_memmax * 1048576ULL;
1773 int64_t clearmem;
1774
1775 if (global.ssl_used_frontend || global.ssl_used_backend)
1776 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1777
1778 mem -= global.maxzlibmem;
1779 mem = mem * MEM_USABLE_RATIO;
1780
1781 clearmem = mem;
1782 if (sides)
1783 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1784
Willy Tarreau87b09662015-04-03 00:22:06 +02001785 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001786 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001787#ifdef SYSTEM_MAXCONN
1788 if (global.maxconn > DEFAULT_MAXCONN)
1789 global.maxconn = DEFAULT_MAXCONN;
1790#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001791
1792 if (clearmem <= 0 || !global.maxconn) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001793 ha_alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
1794 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1795 "is %d, but %d was found.\n",
1796 global.rlimit_memmax,
1797 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
1798 global.maxsslconn);
Willy Tarreaud0256482015-01-15 21:45:22 +01001799 exit(1);
1800 }
1801
1802 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1803 if (sides && global.maxsslconn > sides * global.maxconn) {
1804 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
1805 "to be limited to %d. Better reduce global.maxsslconn to get more "
1806 "room for extra connections.\n", global.maxsslconn, global.maxconn);
1807 }
1808 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
1809 }
1810 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001811
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001812 if (!global.maxpipes) {
1813 /* maxpipes not specified. Count how many frontends and backends
1814 * may be using splicing, and bound that to maxconn.
1815 */
1816 struct proxy *cur;
1817 int nbfe = 0, nbbe = 0;
1818
Olivier Houchardfbc74e82017-11-24 16:54:05 +01001819 for (cur = proxies_list; cur; cur = cur->next) {
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001820 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
1821 if (cur->cap & PR_CAP_FE)
1822 nbfe += cur->maxconn;
1823 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +01001824 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001825 }
1826 }
1827 global.maxpipes = MAX(nbfe, nbbe);
1828 if (global.maxpipes > global.maxconn)
1829 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +01001830 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001831 }
1832
1833
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001834 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001835 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01001836 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Emeric Brunece0c332017-12-06 13:51:49 +01001837 /* compute fd used by async engines */
1838 if (global.ssl_used_async_engines) {
1839 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1840 global.maxsock += global.maxconn * sides * global.ssl_used_async_engines;
1841 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001842
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001843 if (global.stats_fe)
1844 global.maxsock += global.stats_fe->maxconn;
1845
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001846 if (cfg_peers) {
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001847 /* peers also need to bypass global maxconn */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001848 struct peers *p = cfg_peers;
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001849
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001850 for (p = cfg_peers; p; p = p->next)
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001851 if (p->peers_fe)
1852 global.maxsock += p->peers_fe->maxconn;
1853 }
1854
Willy Tarreau1db37712007-06-03 17:16:49 +02001855 if (global.tune.maxpollevents <= 0)
1856 global.tune.maxpollevents = MAX_POLL_EVENTS;
1857
Olivier Houchard1599b802018-05-24 18:59:04 +02001858 if (global.tune.runqueue_depth <= 0)
1859 global.tune.runqueue_depth = RUNQUEUE_DEPTH;
1860
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01001861 if (global.tune.recv_enough == 0)
1862 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
1863
Willy Tarreau27097842015-09-28 13:53:23 +02001864 if (global.tune.maxrewrite < 0)
1865 global.tune.maxrewrite = MAXREWRITE;
1866
Willy Tarreau27a674e2009-08-17 07:23:33 +02001867 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
1868 global.tune.maxrewrite = global.tune.bufsize / 2;
1869
Willy Tarreaubaaee002006-06-26 02:48:02 +02001870 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
1871 /* command line debug mode inhibits configuration mode */
William Lallemand095ba4c2017-06-01 17:38:50 +02001872 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001873 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
1874 }
1875
William Lallemand095ba4c2017-06-01 17:38:50 +02001876 if (arg_mode & MODE_DAEMON) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001877 /* command line daemon mode inhibits foreground and debug modes mode */
1878 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
William Lallemand095ba4c2017-06-01 17:38:50 +02001879 global.mode |= arg_mode & MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001880 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001881
1882 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001883
William Lallemand095ba4c2017-06-01 17:38:50 +02001884 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001885 ha_warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
William Lallemand095ba4c2017-06-01 17:38:50 +02001886 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001887 }
1888
William Lallemand095ba4c2017-06-01 17:38:50 +02001889 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_MWORKER))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001890 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
Christopher Faulet767a84b2017-11-24 16:50:31 +01001891 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 +02001892 global.nbproc = 1;
1893 }
1894
1895 if (global.nbproc < 1)
1896 global.nbproc = 1;
1897
Christopher Fauletbe0faa22017-08-29 15:37:10 +02001898 if (global.nbthread < 1)
1899 global.nbthread = 1;
1900
Christopher Faulet3ef26392017-08-29 16:46:57 +02001901 /* Realloc trash buffers because global.tune.bufsize may have changed */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001902 if (!init_trash_buffers(0)) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001903 ha_alert("failed to initialize trash buffers.\n");
Christopher Faulet3ef26392017-08-29 16:46:57 +02001904 exit(1);
1905 }
1906
Christopher Faulet96d44832017-11-14 22:02:30 +01001907 if (!init_log_buffers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001908 ha_alert("failed to initialize log buffers.\n");
Christopher Faulet96d44832017-11-14 22:02:30 +01001909 exit(1);
1910 }
1911
Willy Tarreauef1d1f82007-04-16 00:25:25 +02001912 /*
1913 * Note: we could register external pollers here.
1914 * Built-in pollers have been registered before main().
1915 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001916
Willy Tarreau43b78992009-01-25 15:42:27 +01001917 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001918 disable_poller("kqueue");
1919
Willy Tarreau43b78992009-01-25 15:42:27 +01001920 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001921 disable_poller("epoll");
1922
Willy Tarreau43b78992009-01-25 15:42:27 +01001923 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001924 disable_poller("poll");
1925
Willy Tarreau43b78992009-01-25 15:42:27 +01001926 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001927 disable_poller("select");
1928
1929 /* Note: we could disable any poller by name here */
1930
Christopher Fauletb3f4e142016-03-07 12:46:38 +01001931 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02001932 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01001933 fprintf(stderr, "\n");
1934 list_filters(stderr);
1935 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001936
Willy Tarreau4f60f162007-04-08 16:39:58 +02001937 if (!init_pollers()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01001938 ha_alert("No polling mechanism available.\n"
1939 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
1940 " is too low on this platform to support maxconn and the number of listeners\n"
1941 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
1942 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
1943 " global maxconn setting to accommodate the system's limitation. For reference,\n"
1944 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
1945 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
1946 " check build settings using 'haproxy -vv'.\n\n",
1947 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001948 exit(1);
1949 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001950 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1951 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001952 }
1953
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001954 if (!global.node)
1955 global.node = strdup(hostname);
1956
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01001957 if (!hlua_post_init())
1958 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01001959
Maxime de Roucy0f503922016-05-13 23:52:55 +02001960 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001961}
1962
Simon Horman6fb82592011-07-15 13:14:11 +09001963static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09001964{
Simon Hormanac821422011-07-15 13:14:09 +09001965 struct acl_term_suite *suite, *suiteb;
1966 struct acl_term *term, *termb;
1967
Simon Horman6fb82592011-07-15 13:14:11 +09001968 if (!cond)
1969 return;
1970
1971 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
1972 list_for_each_entry_safe(term, termb, &suite->terms, list) {
1973 LIST_DEL(&term->list);
1974 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09001975 }
Simon Horman6fb82592011-07-15 13:14:11 +09001976 LIST_DEL(&suite->list);
1977 free(suite);
1978 }
1979
1980 free(cond);
1981}
1982
1983static void deinit_tcp_rules(struct list *rules)
1984{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02001985 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09001986
1987 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09001988 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09001989 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09001990 free(trule);
1991 }
1992}
1993
Simon Horman6fb82592011-07-15 13:14:11 +09001994static void deinit_stick_rules(struct list *rules)
1995{
1996 struct sticking_rule *rule, *ruleb;
1997
1998 list_for_each_entry_safe(rule, ruleb, rules, list) {
1999 LIST_DEL(&rule->list);
2000 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02002001 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09002002 free(rule);
2003 }
2004}
2005
Cyril Bonté203ec5a2017-03-23 22:44:13 +01002006void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002007{
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002008 struct proxy *p = proxies_list, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002009 struct cap_hdr *h,*h_next;
2010 struct server *s,*s_next;
2011 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002012 struct acl_cond *cond, *condb;
2013 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002014 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002015 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002016 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002017 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002018 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01002019 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002020 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02002021 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01002022 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002023 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002024 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01002025 struct post_deinit_fct *pdf;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002026 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002027
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002028 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002029 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02002030 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002031 free(p->id);
2032 free(p->check_req);
2033 free(p->cookie_name);
2034 free(p->cookie_domain);
2035 free(p->url_param_name);
2036 free(p->capture_name);
2037 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09002038 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02002039 if (p->conf.logformat_string != default_http_log_format &&
2040 p->conf.logformat_string != default_tcp_log_format &&
2041 p->conf.logformat_string != clf_http_log_format)
2042 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02002043
Willy Tarreau62a61232013-04-12 18:13:46 +02002044 free(p->conf.lfs_file);
2045 free(p->conf.uniqueid_format_string);
2046 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08002047 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002048
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002049 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
2050 free(p->conf.logformat_sd_string);
2051 free(p->conf.lfsd_file);
2052
Willy Tarreaua534fea2008-08-03 12:19:50 +02002053 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02002054 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002055
Willy Tarreauf4f04122010-01-28 18:10:50 +01002056 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
2057 LIST_DEL(&cwl->list);
2058 free(cwl->s);
2059 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002060 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002061
Willy Tarreauf4f04122010-01-28 18:10:50 +01002062 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
2063 LIST_DEL(&cwl->list);
2064 free(cwl->s);
2065 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01002066 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002067
Willy Tarreaub80c2302007-11-30 20:51:32 +01002068 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
2069 LIST_DEL(&cond->list);
2070 prune_acl_cond(cond);
2071 free(cond);
2072 }
2073
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002074 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002075 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002076 regex_free(exp->preg);
2077 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002078 }
2079
Willy Tarreau98d04852015-05-26 12:18:29 +02002080 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002081 expb = exp;
2082 exp = exp->next;
2083 free(expb);
2084 }
2085
2086 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002087 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02002088 regex_free(exp->preg);
2089 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002090 }
2091
Willy Tarreau98d04852015-05-26 12:18:29 +02002092 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002093 expb = exp;
2094 exp = exp->next;
2095 free(expb);
2096 }
2097
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002098 /* build a list of unique uri_auths */
2099 if (!ua)
2100 ua = p->uri_auth;
2101 else {
2102 /* check if p->uri_auth is unique */
2103 for (uap = ua; uap; uap=uap->next)
2104 if (uap == p->uri_auth)
2105 break;
2106
Willy Tarreauaccc4e12008-06-24 11:14:45 +02002107 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002108 /* add it, if it is */
2109 p->uri_auth->next = ua;
2110 ua = p->uri_auth;
2111 }
2112 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02002113
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002114 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
2115 LIST_DEL(&acl->list);
2116 prune_acl(acl);
2117 free(acl);
2118 }
2119
Willy Tarreau4a5cade2012-04-05 21:09:48 +02002120 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
2121 LIST_DEL(&srule->list);
2122 prune_acl_cond(srule->cond);
2123 free(srule->cond);
2124 free(srule);
2125 }
2126
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002127 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
2128 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002129 if (rule->cond) {
2130 prune_acl_cond(rule->cond);
2131 free(rule->cond);
Thierry FOURNIER / OZON.IO4ed1c952016-11-24 23:57:54 +01002132 free(rule->file);
Willy Tarreauf51658d2014-04-23 01:21:56 +02002133 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002134 free(rule);
2135 }
2136
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002137 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
2138 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01002139 if (rdr->cond) {
2140 prune_acl_cond(rdr->cond);
2141 free(rdr->cond);
2142 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002143 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01002144 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
2145 LIST_DEL(&lf->list);
2146 free(lf);
2147 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002148 free(rdr);
2149 }
2150
William Lallemand0f99e342011-10-12 17:50:54 +02002151 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
2152 LIST_DEL(&log->list);
2153 free(log);
2154 }
2155
William Lallemand723b73a2012-02-08 16:37:49 +01002156 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
2157 LIST_DEL(&lf->list);
2158 free(lf);
2159 }
2160
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002161 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
2162 LIST_DEL(&lf->list);
2163 free(lf);
2164 }
2165
Simon Hormanac821422011-07-15 13:14:09 +09002166 deinit_tcp_rules(&p->tcp_req.inspect_rules);
2167 deinit_tcp_rules(&p->tcp_req.l4_rules);
2168
Simon Horman6fb82592011-07-15 13:14:11 +09002169 deinit_stick_rules(&p->storersp_rules);
2170 deinit_stick_rules(&p->sticking_rules);
2171
Willy Tarreaubaaee002006-06-26 02:48:02 +02002172 h = p->req_cap;
2173 while (h) {
2174 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002175 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002176 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002177 free(h);
2178 h = h_next;
2179 }/* end while(h) */
2180
2181 h = p->rsp_cap;
2182 while (h) {
2183 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002184 free(h->name);
Willy Tarreaubafbe012017-11-24 17:34:44 +01002185 pool_destroy(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002186 free(h);
2187 h = h_next;
2188 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002189
Willy Tarreaubaaee002006-06-26 02:48:02 +02002190 s = p->srv;
2191 while (s) {
2192 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002193
Willy Tarreau5b3a2022012-09-28 15:01:02 +02002194 if (s->check.task) {
2195 task_delete(s->check.task);
2196 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002197 }
Simon Hormand60d6912013-11-25 10:46:36 +09002198 if (s->agent.task) {
2199 task_delete(s->agent.task);
2200 task_free(s->agent.task);
2201 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002202
Willy Tarreau2e993902011-10-31 11:53:20 +01002203 if (s->warmup) {
2204 task_delete(s->warmup);
2205 task_free(s->warmup);
2206 }
2207
Willy Tarreaua534fea2008-08-03 12:19:50 +02002208 free(s->id);
2209 free(s->cookie);
Willy Tarreauc9fa0482018-07-10 17:43:27 +02002210 free(s->check.bi.area);
2211 free(s->check.bo.area);
2212 free(s->agent.bi.area);
2213 free(s->agent.bo.area);
James Brown55f9ff12015-10-21 18:19:05 -07002214 free(s->agent.send_string);
Christopher Faulet67957bd2017-09-27 11:00:59 +02002215 free(s->hostname_dn);
Sárközi, László34c01792014-09-05 10:08:23 +02002216 free((char*)s->conf.file);
Willy Tarreau17d45382016-12-22 21:16:08 +01002217
2218 if (s->use_ssl || s->check.use_ssl) {
2219 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
2220 xprt_get(XPRT_SSL)->destroy_srv(s);
2221 }
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002222 HA_SPIN_DESTROY(&s->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002223 free(s);
2224 s = s_next;
2225 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002226
Willy Tarreau4348fad2012-09-20 16:48:07 +02002227 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002228 /*
2229 * Zombie proxy, the listener just pretend to be up
2230 * because they still hold an opened fd.
2231 * Close it and give the listener its real state.
2232 */
2233 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
2234 close(l->fd);
2235 l->state = LI_INIT;
2236 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02002237 unbind_listener(l);
2238 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002239 LIST_DEL(&l->by_fe);
2240 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002241 free(l->name);
2242 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002243 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002244 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002245
Willy Tarreau4348fad2012-09-20 16:48:07 +02002246 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002247 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01002248 if (bind_conf->xprt->destroy_bind_conf)
2249 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002250 free(bind_conf->file);
2251 free(bind_conf->arg);
2252 LIST_DEL(&bind_conf->by_fe);
2253 free(bind_conf);
2254 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02002255
Christopher Fauletd7c91962015-04-30 11:48:27 +02002256 flt_deinit(p);
2257
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002258 free(p->desc);
2259 free(p->fwdfor_hdr_name);
2260
Willy Tarreauff011f22011-01-06 17:51:27 +01002261 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06002262 free_http_res_rules(&p->http_res_rules);
Willy Tarreau1f89b182017-11-22 16:53:53 +01002263 task_free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01002264
Willy Tarreaubafbe012017-11-24 17:34:44 +01002265 pool_destroy(p->req_cap_pool);
2266 pool_destroy(p->rsp_cap_pool);
2267 pool_destroy(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002268
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002269 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002270 p = p->next;
Christopher Faulet2a944ee2017-11-07 10:42:54 +01002271 HA_SPIN_DESTROY(&p0->lbprm.lock);
2272 HA_SPIN_DESTROY(&p0->lock);
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002273 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002274 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02002275
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002276 while (ua) {
2277 uap = ua;
2278 ua = ua->next;
2279
Willy Tarreaua534fea2008-08-03 12:19:50 +02002280 free(uap->uri_prefix);
2281 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002282 free(uap->node);
2283 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002284
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002285 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01002286 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002287
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002288 free(uap);
2289 }
2290
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002291 userlist_free(userlist);
2292
David Carlier834cb2e2015-09-25 12:02:25 +01002293 cfg_unregister_sections();
2294
Christopher Faulet0132d062017-07-26 15:33:35 +02002295 deinit_log_buffers();
Christopher Faulet748919a2017-07-26 14:59:46 +02002296 deinit_trash_buffers();
David Carlier834cb2e2015-09-25 12:02:25 +01002297
Willy Tarreaudd815982007-10-16 12:25:14 +02002298 protocol_unbind_all();
2299
Willy Tarreau05554e62016-12-21 20:46:26 +01002300 list_for_each_entry(pdf, &post_deinit_list, list)
2301 pdf->fct();
2302
Joe Williamsdf5b38f2010-12-29 17:05:48 +01002303 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02002304 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002305 free(global.chroot); global.chroot = NULL;
2306 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002307 free(global.node); global.node = NULL;
2308 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002309 free(oldpids); oldpids = NULL;
Willy Tarreau1f89b182017-11-22 16:53:53 +01002310 task_free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002311
William Lallemand0f99e342011-10-12 17:50:54 +02002312 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
2313 LIST_DEL(&log->list);
2314 free(log);
2315 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01002316 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02002317 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01002318 LIST_DEL(&wl->list);
2319 free(wl);
2320 }
2321
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002322 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
2323 if (bol->must_free)
2324 free((void *)bol->str);
2325 LIST_DEL(&bol->list);
2326 free(bol);
2327 }
2328
Christopher Fauletff2613e2016-11-09 11:36:17 +01002329 vars_prune(&global.vars, NULL, NULL);
2330
Christopher Fauletad405f12017-08-29 15:30:11 +02002331 deinit_buffer();
2332
Willy Tarreaubafbe012017-11-24 17:34:44 +01002333 pool_destroy(pool_head_stream);
2334 pool_destroy(pool_head_session);
2335 pool_destroy(pool_head_connection);
2336 pool_destroy(pool_head_connstream);
2337 pool_destroy(pool_head_requri);
2338 pool_destroy(pool_head_task);
2339 pool_destroy(pool_head_capture);
2340 pool_destroy(pool_head_pendconn);
2341 pool_destroy(pool_head_sig_handlers);
2342 pool_destroy(pool_head_hdr_idx);
2343 pool_destroy(pool_head_http_txn);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002344 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002345} /* end deinit() */
2346
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002347void mworker_pipe_handler(int fd)
2348{
2349 char c;
2350
2351 while (read(fd, &c, 1) == -1) {
2352 if (errno == EINTR)
2353 continue;
2354 if (errno == EAGAIN) {
2355 fd_cant_recv(fd);
2356 return;
2357 }
2358 break;
2359 }
2360
2361 deinit();
2362 exit(EXIT_FAILURE);
2363 return;
2364}
2365
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002366/* should only be called once per process */
2367void mworker_pipe_register()
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002368{
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002369 if (fdtab[mworker_pipe[0]].owner)
2370 /* already initialized */
2371 return;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002372
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002373 fcntl(mworker_pipe[0], F_SETFL, O_NONBLOCK);
Willy Tarreaua9786b62018-01-25 07:22:13 +01002374 fd_insert(mworker_pipe[0], mworker_pipe, mworker_pipe_handler, MAX_THREADS_MASK);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002375 fd_want_recv(mworker_pipe[0]);
2376}
Christopher Fauletdc628a32017-10-19 11:59:44 +02002377
Willy Tarreau918ff602011-07-25 16:33:49 +02002378/* Runs the polling loop */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01002379static void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02002380{
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002381 int next, exp;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002382
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002383 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002384 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002385 /* Process a few tasks */
2386 process_runnable_tasks();
2387
William Lallemand1aab50b2018-06-07 09:46:01 +02002388 /* check if we caught some signals and process them in the
2389 first thread */
2390 if (tid == 0)
2391 signal_process_queue();
Willy Tarreau29857942009-05-10 09:01:21 +02002392
Willy Tarreau58b458d2008-06-29 22:40:23 +02002393 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002394 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002395
Willy Tarreau85c459d2018-08-02 10:54:31 +02002396 /* stop when there's nothing left to do */
2397 if (jobs == 0)
2398 break;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002399
Willy Tarreau10146c92015-04-13 20:44:19 +02002400 /* expire immediately if events are pending */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002401 exp = now_ms;
Christopher Faulet32467fe2018-01-15 12:16:34 +01002402 if (fd_cache_mask & tid_bit)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002403 activity[tid].wake_cache++;
2404 else if (active_tasks_mask & tid_bit)
2405 activity[tid].wake_tasks++;
William Lallemand1aab50b2018-06-07 09:46:01 +02002406 else if (signal_queue_len && tid == 0)
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002407 activity[tid].wake_signal++;
Olivier Houchard79321b92018-07-26 17:55:11 +02002408 else {
2409 HA_ATOMIC_OR(&sleeping_thread_mask, tid_bit);
2410 __ha_barrier_store();
2411 if (active_tasks_mask & tid_bit) {
2412 activity[tid].wake_tasks++;
2413 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
2414 } else
2415 exp = next;
2416 }
Willy Tarreau10146c92015-04-13 20:44:19 +02002417
Willy Tarreau58b458d2008-06-29 22:40:23 +02002418 /* The poller will ensure it returns around <next> */
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002419 cur_poller.poll(&cur_poller, exp);
Olivier Houchard79321b92018-07-26 17:55:11 +02002420 if (sleeping_thread_mask & tid_bit)
2421 HA_ATOMIC_AND(&sleeping_thread_mask, ~tid_bit);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01002422 fd_process_cached_events();
Emeric Brun64cc49c2017-10-03 14:46:45 +02002423
Willy Tarreaud80cb4e2018-01-20 19:30:13 +01002424 activity[tid].loops++;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002425 }
2426}
2427
Christopher Faulet1d17c102017-08-29 15:38:48 +02002428static void *run_thread_poll_loop(void *data)
2429{
2430 struct per_thread_init_fct *ptif;
2431 struct per_thread_deinit_fct *ptdf;
Christopher Fauletda18b9d2018-01-25 16:10:16 +01002432 __decl_hathreads(static HA_SPINLOCK_T start_lock);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002433
Willy Tarreau0c026f42018-08-01 19:12:20 +02002434 ha_set_tid(*((unsigned int *)data));
Christopher Faulet1d17c102017-08-29 15:38:48 +02002435 tv_update_date(-1,-1);
2436
2437 list_for_each_entry(ptif, &per_thread_init_list, list) {
2438 if (!ptif->fct()) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002439 ha_alert("failed to initialize thread %u.\n", tid);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002440 exit(1);
2441 }
2442 }
2443
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002444 if (global.mode & MODE_MWORKER) {
2445 HA_SPIN_LOCK(START_LOCK, &start_lock);
2446 mworker_pipe_register();
2447 HA_SPIN_UNLOCK(START_LOCK, &start_lock);
2448 }
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002449
2450 protocol_enable_all();
Christopher Faulet1d17c102017-08-29 15:38:48 +02002451 run_poll_loop();
2452
2453 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
2454 ptdf->fct();
2455
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002456#ifdef USE_THREAD
William Lallemand091d8272018-06-24 09:37:03 +02002457 HA_ATOMIC_AND(&all_threads_mask, ~tid_bit);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002458 if (tid > 0)
2459 pthread_exit(NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002460#endif
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002461 return NULL;
2462}
Christopher Faulet1d17c102017-08-29 15:38:48 +02002463
Willy Tarreaue9b26022011-08-01 20:57:55 +02002464/* This is the global management task for listeners. It enables listeners waiting
2465 * for global resources when there are enough free resource, or at least once in
2466 * a while. It is designed to be called as a task.
2467 */
Olivier Houchard9f6af332018-05-25 14:04:04 +02002468static struct task *manage_global_listener_queue(struct task *t, void *context, unsigned short state)
Willy Tarreaue9b26022011-08-01 20:57:55 +02002469{
2470 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02002471 /* queue is empty, nothing to do */
2472 if (LIST_ISEMPTY(&global_listener_queue))
2473 goto out;
2474
2475 /* If there are still too many concurrent connections, let's wait for
2476 * some of them to go away. We don't need to re-arm the timer because
2477 * each of them will scan the queue anyway.
2478 */
2479 if (unlikely(actconn >= global.maxconn))
2480 goto out;
2481
2482 /* We should periodically try to enable listeners waiting for a global
2483 * resource here, because it is possible, though very unlikely, that
2484 * they have been blocked by a temporary lack of global resource such
2485 * as a file descriptor or memory and that the temporary condition has
2486 * disappeared.
2487 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002488 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02002489
2490 out:
2491 t->expire = next;
2492 task_queue(t);
2493 return t;
2494}
Willy Tarreau4f60f162007-04-08 16:39:58 +02002495
Willy Tarreaubaaee002006-06-26 02:48:02 +02002496int main(int argc, char **argv)
2497{
2498 int err, retry;
2499 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02002500 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02002501 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002502
Olivier Houchard5fa300d2018-02-03 15:15:21 +01002503 setvbuf(stdout, NULL, _IONBF, 0);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002504 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002505 signal_register_fct(SIGQUIT, dump, SIGQUIT);
2506 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
2507 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
William Lallemand73b85e72017-06-01 17:38:51 +02002508 signal_register_fct(SIGUSR2, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002509
Willy Tarreaue437c442010-03-17 18:02:46 +01002510 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
2511 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
2512 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002513 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002514 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002515
Willy Tarreaudc23a922011-02-16 11:10:36 +01002516 /* ulimits */
2517 if (!global.rlimit_nofile)
2518 global.rlimit_nofile = global.maxsock;
2519
2520 if (global.rlimit_nofile) {
2521 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
2522 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02002523 /* try to set it to the max possible at least */
2524 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02002525 limit.rlim_cur = limit.rlim_max;
2526 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
2527 getrlimit(RLIMIT_NOFILE, &limit);
2528
Christopher Faulet767a84b2017-11-24 16:50:31 +01002529 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 +02002530 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002531 }
2532 }
2533
2534 if (global.rlimit_memmax) {
2535 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01002536 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002537#ifdef RLIMIT_AS
2538 if (setrlimit(RLIMIT_AS, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002539 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2540 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002541 }
2542#else
2543 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002544 ha_warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2545 argv[0], global.rlimit_memmax);
Willy Tarreaudc23a922011-02-16 11:10:36 +01002546 }
2547#endif
2548 }
2549
Olivier Houchardf73629d2017-04-05 22:33:04 +02002550 if (old_unixsocket) {
William Lallemand85b0bd92017-06-01 17:38:53 +02002551 if (strcmp("/dev/null", old_unixsocket) != 0) {
2552 if (get_old_sockets(old_unixsocket) != 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002553 ha_alert("Failed to get the sockets from the old process!\n");
William Lallemand85b0bd92017-06-01 17:38:53 +02002554 if (!(global.mode & MODE_MWORKER))
2555 exit(1);
2556 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002557 }
2558 }
William Lallemand85b0bd92017-06-01 17:38:53 +02002559 get_cur_unixsocket();
2560
Willy Tarreaubaaee002006-06-26 02:48:02 +02002561 /* We will loop at most 100 times with 10 ms delay each time.
2562 * That's at most 1 second. We only send a signal to old pids
2563 * if we cannot grab at least one port.
2564 */
2565 retry = MAX_START_RETRIES;
2566 err = ERR_NONE;
2567 while (retry >= 0) {
2568 struct timeval w;
2569 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01002570 /* exit the loop on no error or fatal error */
2571 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002572 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02002573 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002574 break;
2575
2576 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
2577 * listening sockets. So on those platforms, it would be wiser to
2578 * simply send SIGUSR1, which will not be undoable.
2579 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02002580 if (tell_old_pids(SIGTTOU) == 0) {
2581 /* no need to wait if we can't contact old pids */
2582 retry = 0;
2583 continue;
2584 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002585 /* give some time to old processes to stop listening */
2586 w.tv_sec = 0;
2587 w.tv_usec = 10*1000;
2588 select(0, NULL, NULL, NULL, &w);
2589 retry--;
2590 }
2591
2592 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01002593 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02002594 if (retry != MAX_START_RETRIES && nb_oldpids) {
2595 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002596 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02002597 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002598 exit(1);
2599 }
2600
2601 if (listeners == 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002602 ha_alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002603 /* Note: we don't have to send anything to the old pids because we
2604 * never stopped them. */
2605 exit(1);
2606 }
2607
Emeric Bruncf20bf12010-10-22 16:06:11 +02002608 err = protocol_bind_all(errmsg, sizeof(errmsg));
2609 if ((err & ~ERR_WARN) != ERR_NONE) {
2610 if ((err & ERR_ALERT) || (err & ERR_WARN))
Christopher Faulet767a84b2017-11-24 16:50:31 +01002611 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002612
Christopher Faulet767a84b2017-11-24 16:50:31 +01002613 ha_alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002614 protocol_unbind_all(); /* cleanup everything we can */
2615 if (nb_oldpids)
2616 tell_old_pids(SIGTTIN);
2617 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002618 } else if (err & ERR_WARN) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002619 ha_alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02002620 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002621 /* Ok, all listener should now be bound, close any leftover sockets
2622 * the previous process gave us, we don't need them anymore
2623 */
2624 while (xfer_sock_list != NULL) {
2625 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
2626 close(xfer_sock_list->fd);
2627 free(xfer_sock_list->iface);
2628 free(xfer_sock_list->namespace);
2629 free(xfer_sock_list);
2630 xfer_sock_list = tmpxfer;
2631 }
Willy Tarreaudd815982007-10-16 12:25:14 +02002632
Willy Tarreaubaaee002006-06-26 02:48:02 +02002633 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002634 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
2635 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002636
Willy Tarreaubaaee002006-06-26 02:48:02 +02002637 /* MODE_QUIET can inhibit alerts and warnings below this line */
2638
PiBa-NL149a81a2017-12-25 21:03:31 +01002639 if (getenv("HAPROXY_MWORKER_REEXEC") != NULL) {
2640 /* either stdin/out/err are already closed or should stay as they are. */
2641 if ((global.mode & MODE_DAEMON)) {
2642 /* daemon mode re-executing, stdin/stdout/stderr are already closed so keep quiet */
2643 global.mode &= ~MODE_VERBOSE;
2644 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2645 }
2646 } else {
2647 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
2648 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01002649 stdio_quiet(-1);
PiBa-NL149a81a2017-12-25 21:03:31 +01002650 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002651 }
2652
2653 /* open log & pid files before the chroot */
William Lallemand80293002017-11-06 11:00:03 +01002654 if ((global.mode & MODE_DAEMON || global.mode & MODE_MWORKER) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002655 unlink(global.pidfile);
2656 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
2657 if (pidfd < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002658 ha_alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002659 if (nb_oldpids)
2660 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02002661 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002662 exit(1);
2663 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002664 }
2665
Willy Tarreaub38651a2007-03-24 17:24:39 +01002666 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002667 ha_alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
2668 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002669 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01002670 exit(1);
2671 }
2672
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002673 /* If the user is not root, we'll still let him try the configuration
2674 * but we inform him that unexpected behaviour may occur.
2675 */
2676 if ((global.last_checks & LSTCHK_NETADM) && getuid())
Christopher Faulet767a84b2017-11-24 16:50:31 +01002677 ha_warning("[%s.main()] Some options which require full privileges"
2678 " might not work well.\n"
2679 "", argv[0]);
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002680
William Lallemand095ba4c2017-06-01 17:38:50 +02002681 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2682
2683 /* chroot if needed */
2684 if (global.chroot != NULL) {
2685 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002686 ha_alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02002687 if (nb_oldpids)
2688 tell_old_pids(SIGTTIN);
2689 protocol_unbind_all();
2690 exit(1);
2691 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002692 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002693 }
2694
Willy Tarreaubaaee002006-06-26 02:48:02 +02002695 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02002696 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002697
William Lallemand8a361b52017-06-20 11:20:33 +02002698 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
2699 nb_oldpids = 0;
2700 free(oldpids);
2701 oldpids = NULL;
2702 }
2703
2704
Willy Tarreaubaaee002006-06-26 02:48:02 +02002705 /* Note that any error at this stage will be fatal because we will not
2706 * be able to restart the old pids.
2707 */
2708
William Lallemand095ba4c2017-06-01 17:38:50 +02002709 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2710 /* setgid / setuid */
2711 if (global.gid) {
2712 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01002713 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2714 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002715
2716 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002717 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02002718 protocol_unbind_all();
2719 exit(1);
2720 }
2721 }
Michael Schererab012dd2013-01-12 18:35:19 +01002722
William Lallemand095ba4c2017-06-01 17:38:50 +02002723 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002724 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Michael Schererab012dd2013-01-12 18:35:19 +01002725 protocol_unbind_all();
2726 exit(1);
2727 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002728 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002729 /* check ulimits */
2730 limit.rlim_cur = limit.rlim_max = 0;
2731 getrlimit(RLIMIT_NOFILE, &limit);
2732 if (limit.rlim_cur < global.maxsock) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002733 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",
2734 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002735 }
2736
William Lallemand095ba4c2017-06-01 17:38:50 +02002737 if (global.mode & (MODE_DAEMON | MODE_MWORKER)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002738 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002739 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002740 int ret = 0;
2741 int proc;
William Lallemande1340412017-12-28 16:09:36 +01002742 int devnullfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002743
William Lallemand73b85e72017-06-01 17:38:51 +02002744 children = calloc(global.nbproc, sizeof(int));
William Lallemand095ba4c2017-06-01 17:38:50 +02002745 /*
2746 * if daemon + mworker: must fork here to let a master
2747 * process live in background before forking children
2748 */
William Lallemand73b85e72017-06-01 17:38:51 +02002749
2750 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)
2751 && (global.mode & MODE_MWORKER)
2752 && (global.mode & MODE_DAEMON)) {
William Lallemand095ba4c2017-06-01 17:38:50 +02002753 ret = fork();
2754 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002755 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002756 protocol_unbind_all();
2757 exit(1); /* there has been an error */
William Lallemandbfd8eb52018-07-04 15:31:23 +02002758 } else if (ret > 0) { /* parent leave to daemonize */
William Lallemand095ba4c2017-06-01 17:38:50 +02002759 exit(0);
William Lallemandbfd8eb52018-07-04 15:31:23 +02002760 } else /* change the process group ID in the child (master process) */
2761 setsid();
William Lallemand095ba4c2017-06-01 17:38:50 +02002762 }
William Lallemande20b6a62017-06-01 17:38:55 +02002763
2764 if (global.mode & MODE_MWORKER) {
2765 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
2766 char *msg = NULL;
2767 /* master pipe to ensure the master is still alive */
2768 ret = pipe(mworker_pipe);
2769 if (ret < 0) {
PiBa-NL4763ffd2017-11-28 23:22:14 +01002770 ha_alert("[%s.main()] Cannot create master pipe.\n", argv[0]);
2771 exit(EXIT_FAILURE);
William Lallemande20b6a62017-06-01 17:38:55 +02002772 } else {
2773 memprintf(&msg, "%d", mworker_pipe[0]);
2774 setenv("HAPROXY_MWORKER_PIPE_RD", msg, 1);
2775 memprintf(&msg, "%d", mworker_pipe[1]);
2776 setenv("HAPROXY_MWORKER_PIPE_WR", msg, 1);
2777 free(msg);
2778 }
2779 } else {
PiBa-NL4763ffd2017-11-28 23:22:14 +01002780 char* rd = getenv("HAPROXY_MWORKER_PIPE_RD");
2781 char* wr = getenv("HAPROXY_MWORKER_PIPE_WR");
2782 if (!rd || !wr) {
2783 ha_alert("[%s.main()] Cannot get master pipe FDs.\n", argv[0]);
2784 atexit_flag = 0;// dont reexecute master process
2785 exit(EXIT_FAILURE);
William Lallemande20b6a62017-06-01 17:38:55 +02002786 }
PiBa-NL4763ffd2017-11-28 23:22:14 +01002787 mworker_pipe[0] = atoi(rd);
2788 mworker_pipe[1] = atoi(wr);
William Lallemande20b6a62017-06-01 17:38:55 +02002789 }
2790 }
2791
William Lallemanddeed7802017-11-06 11:00:04 +01002792 /* if in master-worker mode, write the PID of the father */
2793 if (global.mode & MODE_MWORKER) {
2794 char pidstr[100];
2795 snprintf(pidstr, sizeof(pidstr), "%d\n", getpid());
Willy Tarreau46ec48b2018-01-23 19:20:19 +01002796 if (pidfd >= 0)
2797 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
William Lallemanddeed7802017-11-06 11:00:04 +01002798 }
2799
Willy Tarreaubaaee002006-06-26 02:48:02 +02002800 /* the father launches the required number of processes */
2801 for (proc = 0; proc < global.nbproc; proc++) {
2802 ret = fork();
2803 if (ret < 0) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002804 ha_alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002805 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02002806 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002807 }
2808 else if (ret == 0) /* child breaks here */
2809 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01002810 children[proc] = ret;
William Lallemand92159b22017-11-06 11:16:12 +01002811 if (pidfd >= 0 && !(global.mode & MODE_MWORKER)) {
Willy Tarreau269ab312012-09-05 08:02:48 +02002812 char pidstr[100];
2813 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002814 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02002815 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01002816 relative_pid++; /* each child will get a different one */
Willy Tarreau387bd4f2017-11-10 19:08:14 +01002817 pid_bit <<= 1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002818 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002819
2820#ifdef USE_CPU_AFFINITY
2821 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02002822 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Christopher Fauletcb6a9452017-11-22 16:50:41 +01002823 global.cpu_map.proc[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002824#ifdef __FreeBSD__
Olivier Houchard97148f62017-08-16 17:29:11 +02002825 {
2826 cpuset_t cpuset;
2827 int i;
Christopher Fauletcb6a9452017-11-22 16:50:41 +01002828 unsigned long cpu_map = global.cpu_map.proc[proc];
Olivier Houchard97148f62017-08-16 17:29:11 +02002829
2830 CPU_ZERO(&cpuset);
2831 while ((i = ffsl(cpu_map)) > 0) {
2832 CPU_SET(i - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01002833 cpu_map &= ~(1UL << (i - 1));
Olivier Houchard97148f62017-08-16 17:29:11 +02002834 }
2835 ret = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset), &cpuset);
2836 }
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002837#else
Christopher Fauletcb6a9452017-11-22 16:50:41 +01002838 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map.proc[proc]);
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002839#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002840#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02002841 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02002842 if (pidfd >= 0) {
2843 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
2844 close(pidfd);
2845 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02002846
2847 /* We won't ever use this anymore */
Willy Tarreaud137dd32010-08-25 12:49:05 +02002848 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002849
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002850 if (proc == global.nbproc) {
William Lallemand095ba4c2017-06-01 17:38:50 +02002851 if (global.mode & MODE_MWORKER) {
William Lallemand75ea0a02017-11-15 19:02:58 +01002852 mworker_cleanlisteners();
2853 deinit_pollers();
PiBa-NLbaf6ea42017-11-28 23:26:08 +01002854
2855 if ((!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) &&
2856 (global.mode & MODE_DAEMON)) {
2857 /* detach from the tty, this is required to properly daemonize. */
William Lallemande1340412017-12-28 16:09:36 +01002858 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL))
2859 stdio_quiet(-1);
2860
PiBa-NLbaf6ea42017-11-28 23:26:08 +01002861 global.mode &= ~MODE_VERBOSE;
2862 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
PiBa-NLbaf6ea42017-11-28 23:26:08 +01002863 }
2864
William Lallemand73b85e72017-06-01 17:38:51 +02002865 mworker_wait();
William Lallemand1499b9b2017-06-07 15:04:47 +02002866 /* should never get there */
2867 exit(EXIT_FAILURE);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002868 }
William Lallemandcf4e4962017-06-08 19:05:48 +02002869#if defined(USE_OPENSSL) && !defined(OPENSSL_NO_DH)
Grant Zhang872f9c22017-01-21 01:10:18 +00002870 ssl_free_dh();
2871#endif
William Lallemand1499b9b2017-06-07 15:04:47 +02002872 exit(0); /* parent must leave */
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002873 }
2874
William Lallemandcb11fd22017-06-01 17:38:52 +02002875 /* child must never use the atexit function */
2876 atexit_flag = 0;
2877
Willy Tarreau1605c7a2018-01-23 19:01:49 +01002878 /* close the write end of the master pipe in the children */
2879 if (global.mode & MODE_MWORKER)
2880 close(mworker_pipe[1]);
2881
William Lallemande1340412017-12-28 16:09:36 +01002882 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
2883 devnullfd = open("/dev/null", O_RDWR, 0);
2884 if (devnullfd < 0) {
2885 ha_alert("Cannot open /dev/null\n");
2886 exit(EXIT_FAILURE);
2887 }
2888 }
2889
William Lallemand095ba4c2017-06-01 17:38:50 +02002890 /* Must chroot and setgid/setuid in the children */
2891 /* chroot if needed */
2892 if (global.chroot != NULL) {
2893 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002894 ha_alert("[%s.main()] Cannot chroot1(%s).\n", argv[0], global.chroot);
William Lallemand095ba4c2017-06-01 17:38:50 +02002895 if (nb_oldpids)
2896 tell_old_pids(SIGTTIN);
2897 protocol_unbind_all();
2898 exit(1);
2899 }
2900 }
2901
2902 free(global.chroot);
2903 global.chroot = NULL;
2904
2905 /* setgid / setuid */
2906 if (global.gid) {
2907 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
Christopher Faulet767a84b2017-11-24 16:50:31 +01002908 ha_warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2909 " without 'uid'/'user' is generally useless.\n", argv[0]);
William Lallemand095ba4c2017-06-01 17:38:50 +02002910
2911 if (setgid(global.gid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002912 ha_alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
William Lallemand095ba4c2017-06-01 17:38:50 +02002913 protocol_unbind_all();
2914 exit(1);
2915 }
2916 }
2917
2918 if (global.uid && setuid(global.uid) == -1) {
Christopher Faulet767a84b2017-11-24 16:50:31 +01002919 ha_alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
William Lallemand095ba4c2017-06-01 17:38:50 +02002920 protocol_unbind_all();
2921 exit(1);
2922 }
2923
William Lallemand7f80eb22017-05-26 18:19:55 +02002924 /* pass through every cli socket, and check if it's bound to
2925 * the current process and if it exposes listeners sockets.
2926 * Caution: the GTUNE_SOCKET_TRANSFER is now set after the fork.
2927 * */
2928
2929 if (global.stats_fe) {
2930 struct bind_conf *bind_conf;
2931
2932 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
2933 if (bind_conf->level & ACCESS_FD_LISTENERS) {
2934 if (!bind_conf->bind_proc || bind_conf->bind_proc & (1UL << proc)) {
2935 global.tune.options |= GTUNE_SOCKET_TRANSFER;
2936 break;
2937 }
2938 }
2939 }
2940 }
2941
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002942 /* we might have to unbind some proxies from some processes */
Olivier Houchardfbc74e82017-11-24 16:54:05 +01002943 px = proxies_list;
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002944 while (px != NULL) {
2945 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002946 if (!(px->bind_proc & (1UL << proc))) {
2947 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
2948 zombify_proxy(px);
2949 else
2950 stop_proxy(px);
2951 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002952 }
2953 px = px->next;
2954 }
2955
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002956 /* we might have to unbind some peers sections from some processes */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002957 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002958 if (!curpeers->peers_fe)
2959 continue;
2960
2961 if (curpeers->peers_fe->bind_proc & (1UL << proc))
2962 continue;
2963
2964 stop_proxy(curpeers->peers_fe);
2965 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02002966 signal_unregister_handler(curpeers->sighandler);
2967 task_delete(curpeers->sync_task);
2968 task_free(curpeers->sync_task);
2969 curpeers->sync_task = NULL;
2970 task_free(curpeers->peers_fe->task);
2971 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002972 curpeers->peers_fe = NULL;
2973 }
2974
Willy Tarreaubaaee002006-06-26 02:48:02 +02002975 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
2976 * that we can detach from the TTY. We MUST NOT do it in other cases since
2977 * it would have already be done, and 0-2 would have been affected to listening
2978 * sockets
2979 */
Willy Tarreau106cb762008-11-16 07:40:34 +01002980 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002981 /* detach from the tty */
William Lallemande1340412017-12-28 16:09:36 +01002982 stdio_quiet(devnullfd);
Willy Tarreau106cb762008-11-16 07:40:34 +01002983 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002984 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2985 }
2986 pid = getpid(); /* update child's pid */
William Lallemandbfd8eb52018-07-04 15:31:23 +02002987 if (!(global.mode & MODE_MWORKER)) /* in mworker mode we don't want a new pgid for the children */
2988 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02002989 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002990 }
2991
Christopher Faulete3a5e352017-10-24 13:53:54 +02002992 global.mode &= ~MODE_STARTING;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002993 /*
2994 * That's it : the central polling loop. Run until we stop.
2995 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02002996#ifdef USE_THREAD
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002997 {
Christopher Faulet1d17c102017-08-29 15:38:48 +02002998 unsigned int *tids = calloc(global.nbthread, sizeof(unsigned int));
2999 pthread_t *threads = calloc(global.nbthread, sizeof(pthread_t));
3000 int i;
William Lallemand1aab50b2018-06-07 09:46:01 +02003001 sigset_t blocked_sig, old_sig;
Christopher Faulet1d17c102017-08-29 15:38:48 +02003002
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003003 /* Init tids array */
3004 for (i = 0; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003005 tids[i] = i;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003006
William Lallemand1aab50b2018-06-07 09:46:01 +02003007 /* ensure the signals will be blocked in every thread */
3008 sigfillset(&blocked_sig);
3009 sigdelset(&blocked_sig, SIGPROF);
3010 sigdelset(&blocked_sig, SIGBUS);
3011 sigdelset(&blocked_sig, SIGFPE);
3012 sigdelset(&blocked_sig, SIGILL);
3013 sigdelset(&blocked_sig, SIGSEGV);
3014 pthread_sigmask(SIG_SETMASK, &blocked_sig, &old_sig);
3015
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003016 /* Create nbthread-1 thread. The first thread is the current process */
3017 threads[0] = pthread_self();
3018 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003019 pthread_create(&threads[i], NULL, &run_thread_poll_loop, &tids[i]);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003020
Christopher Faulet62519022017-10-16 15:49:32 +02003021#ifdef USE_CPU_AFFINITY
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003022 /* Now the CPU affinity for all threads */
3023 for (i = 0; i < global.nbthread; i++) {
Christopher Fauletcb6a9452017-11-22 16:50:41 +01003024 if (global.cpu_map.proc[relative_pid-1])
3025 global.cpu_map.thread[relative_pid-1][i] &= global.cpu_map.proc[relative_pid-1];
Christopher Faulet62519022017-10-16 15:49:32 +02003026
Willy Tarreau421f02e2018-01-20 18:19:22 +01003027 if (i < MAX_THREADS && /* only the first 32/64 threads may be pinned */
Olivier Houchard829aa242017-12-01 18:19:43 +01003028 global.cpu_map.thread[relative_pid-1][i]) {/* only do this if the thread has a THREAD map */
3029#if defined(__FreeBSD__) || defined(__NetBSD__)
3030 cpuset_t cpuset;
3031#else
3032 cpu_set_t cpuset;
3033#endif
3034 int j;
3035 unsigned long cpu_map = global.cpu_map.thread[relative_pid-1][i];
3036
3037 CPU_ZERO(&cpuset);
3038
3039 while ((j = ffsl(cpu_map)) > 0) {
3040 CPU_SET(j - 1, &cpuset);
Cyril Bontéd400ab32018-03-12 21:47:39 +01003041 cpu_map &= ~(1UL << (j - 1));
Olivier Houchard829aa242017-12-01 18:19:43 +01003042 }
Christopher Faulet62519022017-10-16 15:49:32 +02003043 pthread_setaffinity_np(threads[i],
Olivier Houchard829aa242017-12-01 18:19:43 +01003044 sizeof(cpuset), &cpuset);
3045 }
Christopher Faulet1d17c102017-08-29 15:38:48 +02003046 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003047#endif /* !USE_CPU_AFFINITY */
3048
William Lallemand1aab50b2018-06-07 09:46:01 +02003049 /* when multithreading we need to let only the thread 0 handle the signals */
3050 pthread_sigmask(SIG_SETMASK, &old_sig, NULL);
3051
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003052 /* Finally, start the poll loop for the first thread */
3053 run_thread_poll_loop(&tids[0]);
3054
3055 /* Wait the end of other threads */
3056 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02003057 pthread_join(threads[i], NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02003058
Christopher Faulet1d17c102017-08-29 15:38:48 +02003059 free(tids);
3060 free(threads);
3061
Christopher Fauletb79a94c2017-05-30 15:34:30 +02003062#if defined(DEBUG_THREAD) || defined(DEBUG_FULL)
3063 show_lock_stats();
3064#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003065 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003066#else /* ! USE_THREAD */
Christopher Fauletd4604ad2017-05-29 10:40:41 +02003067
Christopher Fauletcd7879a2017-10-27 13:53:47 +02003068 run_thread_poll_loop((int []){0});
Christopher Faulet62519022017-10-16 15:49:32 +02003069
Christopher Faulet62519022017-10-16 15:49:32 +02003070#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02003071
3072 /* Do some cleanup */
Willy Tarreaubaaee002006-06-26 02:48:02 +02003073 deinit();
Christopher Faulet1d17c102017-08-29 15:38:48 +02003074
Willy Tarreaubaaee002006-06-26 02:48:02 +02003075 exit(0);
3076}
3077
3078
3079/*
3080 * Local variables:
3081 * c-indent-level: 8
3082 * c-basic-offset: 8
3083 * End:
3084 */