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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau7b677262017-04-03 09:27:49 +02003 * Copyright 2000-2017 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>
58#endif
Willy Tarreaufc6c0322012-11-16 16:12:27 +010059#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +020060
61#ifdef DEBUG_FULL
62#include <assert.h>
63#endif
64
Willy Tarreau2dd0d472006-06-29 17:53:05 +020065#include <common/base64.h>
66#include <common/cfgparse.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020067#include <common/chunk.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020068#include <common/compat.h>
69#include <common/config.h>
70#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010071#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020072#include <common/memory.h>
73#include <common/mini-clist.h>
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +010074#include <common/namespace.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020075#include <common/regex.h>
76#include <common/standard.h>
77#include <common/time.h>
78#include <common/uri_auth.h>
79#include <common/version.h>
Christopher Fauletbe0faa22017-08-29 15:37:10 +020080#include <common/hathreads.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020081
82#include <types/capture.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020083#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020084#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090085#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020086#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020087
Willy Tarreau0fc45a72007-06-17 00:36:03 +020088#include <proto/acl.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020089#include <proto/applet.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020090#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020091#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020092#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020093#include <proto/channel.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +020094#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020095#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020096#include <proto/filters.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +020097#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +010098#include <proto/hlua.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020099#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200100#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100101#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200102#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +0100103#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200104#include <proto/proxy.h>
105#include <proto/queue.h>
106#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200107#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200108#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200109#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200110#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200111#include <proto/dns.h>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100112#include <proto/vars.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200113#ifdef USE_OPENSSL
Grant Zhang872f9c22017-01-21 01:10:18 +0000114#include <proto/ssl_sock.h>
Willy Tarreau50bc31d2017-08-16 15:35:19 +0200115#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200116
Willy Tarreau477ecd82010-01-03 21:12:30 +0100117/* list of config files */
118static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200119int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100120int relative_pid = 1; /* process id starting at 1 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200121
122/* global options */
123struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100124 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100125 .nbproc = 1,
Christopher Fauletbe0faa22017-08-29 15:37:10 +0200126 .nbthread = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200127 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200128 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100129 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100130 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100131 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200132 .unix_bind = {
133 .ux = {
134 .uid = -1,
135 .gid = -1,
136 .mode = 0,
137 }
138 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200139 .tune = {
140 .bufsize = BUFSIZE,
Willy Tarreau27097842015-09-28 13:53:23 +0200141 .maxrewrite = -1,
Willy Tarreau43961d52010-10-04 20:39:20 +0200142 .chksize = BUFSIZE,
Willy Tarreaua24adf02014-11-27 01:11:56 +0100143 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200144 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200145#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100146 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200147#endif
William Lallemandf3747832012-11-09 12:33:10 +0100148 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100149#ifdef DEFAULT_IDLE_TIMER
150 .idle_timer = DEFAULT_IDLE_TIMER,
151#else
152 .idle_timer = 1000, /* 1 second */
153#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200154 },
Emeric Brun76d88952012-10-05 15:47:31 +0200155#ifdef USE_OPENSSL
156#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200157 .maxsslconn = DEFAULT_MAXSSLCONN,
158#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200159#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200160 /* others NULL OK */
161};
162
163/*********************************************************************/
164
165int stopping; /* non zero means stopping in progress */
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100166int killed; /* non zero means a hard-stop is triggered */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200167int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200168
169/* Here we store informations about the pids of the processes we may pause
170 * or kill. We will send them a signal every 10 ms until we can bind to all
171 * our ports. With 200 retries, that's about 2 seconds.
172 */
173#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200174static int *oldpids = NULL;
175static int oldpids_sig; /* use USR1 or TERM */
176
Olivier Houchardf73629d2017-04-05 22:33:04 +0200177/* Path to the unix socket we use to retrieve listener sockets from the old process */
178static const char *old_unixsocket;
179
William Lallemand85b0bd92017-06-01 17:38:53 +0200180static char *cur_unixsocket = NULL;
181
William Lallemandcb11fd22017-06-01 17:38:52 +0200182int atexit_flag = 0;
183
Willy Tarreaubb545b42010-08-25 12:58:59 +0200184int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200185const int zero = 0;
186const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200187const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200188
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100189char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200190char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200191
Willy Tarreau89efaed2013-12-13 15:14:55 +0100192/* used from everywhere just to drain results we don't want to read and which
193 * recent versions of gcc increasingly and annoyingly complain about.
194 */
195int shut_your_big_mouth_gcc_int = 0;
196
William Lallemand73b85e72017-06-01 17:38:51 +0200197int *children = NULL; /* store PIDs of children in master workers mode */
198
199static volatile sig_atomic_t caught_signal = 0;
200static char **next_argv = NULL;
201
William Lallemande20b6a62017-06-01 17:38:55 +0200202int mworker_pipe[2];
203
Willy Tarreau08ceb102011-07-24 22:58:00 +0200204/* list of the temporarily limited listeners because of lack of resource */
205struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200206struct task *global_listener_queue_task;
207static struct task *manage_global_listener_queue(struct task *t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200208
Willy Tarreauff055502014-04-28 22:27:06 +0200209/* bitfield of a few warnings to emit just once (WARN_*) */
210unsigned int warned = 0;
211
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100212
213/* These are strings to be reported in the output of "haproxy -vv". They may
214 * either be constants (in which case must_free must be zero) or dynamically
215 * allocated strings to pass to free() on exit, and in this case must_free
216 * must be non-zero.
217 */
218struct list build_opts_list = LIST_HEAD_INIT(build_opts_list);
219struct build_opts_str {
220 struct list list;
221 const char *str;
222 int must_free;
223};
224
Willy Tarreaue6945732016-12-21 19:57:00 +0100225/* These functions are called just after the point where the program exits
226 * after a config validity check, so they are generally suited for resource
227 * allocation and slow initializations that should be skipped during basic
228 * config checks. The functions must return 0 on success, or a combination
229 * of ERR_* flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause
230 * and immediate exit, so the function must have emitted any useful error.
231 */
232struct list post_check_list = LIST_HEAD_INIT(post_check_list);
233struct post_check_fct {
234 struct list list;
235 int (*fct)();
236};
237
Willy Tarreau05554e62016-12-21 20:46:26 +0100238/* These functions are called when freeing the global sections at the end
239 * of deinit, after everything is stopped. They don't return anything, and
240 * they work in best effort mode as their sole goal is to make valgrind
241 * mostly happy.
242 */
243struct list post_deinit_list = LIST_HEAD_INIT(post_deinit_list);
244struct post_deinit_fct {
245 struct list list;
246 void (*fct)();
247};
248
Christopher Faulet415f6112017-07-25 16:52:58 +0200249/* These functions are called for each thread just after the thread creation
250 * and before running the scheduler. They should be used to do per-thread
251 * initializations. They must return 0 if an error occurred. */
252struct list per_thread_init_list = LIST_HEAD_INIT(per_thread_init_list);
253struct per_thread_init_fct {
254 struct list list;
255 int (*fct)();
256};
257
258/* These functions are called for each thread just after the scheduler loop and
259 * before exiting the thread. They don't return anything and, as for post-deinit
260 * functions, they work in best effort mode as their sole goal is to make
261 * valgrind mostly happy. */
262struct list per_thread_deinit_list = LIST_HEAD_INIT(per_thread_deinit_list);
263struct per_thread_deinit_fct {
264 struct list list;
265 void (*fct)();
266};
267
Willy Tarreaubaaee002006-06-26 02:48:02 +0200268/*********************************************************************/
269/* general purpose functions ***************************************/
270/*********************************************************************/
271
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100272/* used to register some build option strings at boot. Set must_free to
273 * non-zero if the string must be freed upon exit.
274 */
275void hap_register_build_opts(const char *str, int must_free)
276{
277 struct build_opts_str *b;
278
279 b = calloc(1, sizeof(*b));
280 if (!b) {
281 fprintf(stderr, "out of memory\n");
282 exit(1);
283 }
284 b->str = str;
285 b->must_free = must_free;
286 LIST_ADDQ(&build_opts_list, &b->list);
287}
288
Willy Tarreaue6945732016-12-21 19:57:00 +0100289/* used to register some initialization functions to call after the checks. */
290void hap_register_post_check(int (*fct)())
291{
292 struct post_check_fct *b;
293
294 b = calloc(1, sizeof(*b));
295 if (!b) {
296 fprintf(stderr, "out of memory\n");
297 exit(1);
298 }
299 b->fct = fct;
300 LIST_ADDQ(&post_check_list, &b->list);
301}
302
Willy Tarreau05554e62016-12-21 20:46:26 +0100303/* used to register some de-initialization functions to call after everything
304 * has stopped.
305 */
306void hap_register_post_deinit(void (*fct)())
307{
308 struct post_deinit_fct *b;
309
310 b = calloc(1, sizeof(*b));
311 if (!b) {
312 fprintf(stderr, "out of memory\n");
313 exit(1);
314 }
315 b->fct = fct;
316 LIST_ADDQ(&post_deinit_list, &b->list);
317}
318
Christopher Faulet415f6112017-07-25 16:52:58 +0200319/* used to register some initialization functions to call for each thread. */
320void hap_register_per_thread_init(int (*fct)())
321{
322 struct per_thread_init_fct *b;
323
324 b = calloc(1, sizeof(*b));
325 if (!b) {
326 fprintf(stderr, "out of memory\n");
327 exit(1);
328 }
329 b->fct = fct;
330 LIST_ADDQ(&per_thread_init_list, &b->list);
331}
332
333/* used to register some de-initialization functions to call for each thread. */
334void hap_register_per_thread_deinit(void (*fct)())
335{
336 struct per_thread_deinit_fct *b;
337
338 b = calloc(1, sizeof(*b));
339 if (!b) {
340 fprintf(stderr, "out of memory\n");
341 exit(1);
342 }
343 b->fct = fct;
344 LIST_ADDQ(&per_thread_deinit_list, &b->list);
345}
346
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100347static void display_version()
Willy Tarreaubaaee002006-06-26 02:48:02 +0200348{
349 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreau7b677262017-04-03 09:27:49 +0200350 printf("Copyright 2000-2017 Willy Tarreau <willy@haproxy.org>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200351}
352
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100353static void display_build_opts()
Willy Tarreau7b066db2007-12-02 11:28:59 +0100354{
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100355 struct build_opts_str *item;
356
Willy Tarreau7b066db2007-12-02 11:28:59 +0100357 printf("Build options :"
358#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100359 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100360#endif
361#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100362 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100363#endif
364#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100365 "\n CC = " BUILD_CC
366#endif
367#ifdef BUILD_CFLAGS
368 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100369#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100370#ifdef BUILD_OPTIONS
371 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100372#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200373 "\n\nDefault settings :"
374 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
375 "\n\n",
376 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200377
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100378 list_for_each_entry(item, &build_opts_list, list) {
379 puts(item->str);
380 }
381
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100382 putchar('\n');
383
Willy Tarreaube5b6852009-10-03 18:57:08 +0200384 list_pollers(stdout);
385 putchar('\n');
Christopher Fauletb3f4e142016-03-07 12:46:38 +0100386 list_filters(stdout);
387 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100388}
389
Willy Tarreaubaaee002006-06-26 02:48:02 +0200390/*
391 * This function prints the command line usage and exits
392 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100393static void usage(char *name)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200394{
395 display_version();
396 fprintf(stderr,
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200397 "Usage : %s [-f <cfgfile|cfgdir>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200398 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200399 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100400 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200401 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200402 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200403 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200404 " -D goes daemon ; -C changes to <dir> before loading files.\n"
William Lallemand095ba4c2017-06-01 17:38:50 +0200405 " -W master-worker mode.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200406 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200407 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200408 " -n sets the maximum total # of connections (%d)\n"
409 " -m limits the usable amount of memory (in MB)\n"
410 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200411 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200412 " -p writes pids of all children to this file\n"
413#if defined(ENABLE_EPOLL)
414 " -de disables epoll() usage even when available\n"
415#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200416#if defined(ENABLE_KQUEUE)
417 " -dk disables kqueue() usage even when available\n"
418#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200419#if defined(ENABLE_POLL)
420 " -dp disables poll() usage even when available\n"
421#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200422#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100423 " -dS disables splice usage (broken on old kernels)\n"
424#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200425#if defined(USE_GETADDRINFO)
426 " -dG disables getaddrinfo() usage\n"
427#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000428#if defined(SO_REUSEPORT)
429 " -dR disables SO_REUSEPORT usage\n"
430#endif
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100431 " -dr ignores server address resolution failures\n"
Emeric Brun850efd52014-01-29 12:24:34 +0100432 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200433 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Olivier Houchardf73629d2017-04-05 22:33:04 +0200434 " -x <unix_socket> get listening sockets from a unix socket\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200435 "\n",
436 name, DEFAULT_MAXCONN, cfg_maxpconn);
437 exit(1);
438}
439
440
441
442/*********************************************************************/
443/* more specific functions ***************************************/
444/*********************************************************************/
445
William Lallemand73b85e72017-06-01 17:38:51 +0200446/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
447 * pids the signal was correctly delivered to.
448 */
449static int tell_old_pids(int sig)
450{
451 int p;
452 int ret = 0;
453 for (p = 0; p < nb_oldpids; p++)
454 if (kill(oldpids[p], sig) == 0)
455 ret++;
456 return ret;
457}
458
459/* return 1 if a pid is a current child otherwise 0 */
460
461int current_child(int pid)
462{
463 int i;
464
465 for (i = 0; i < global.nbproc; i++) {
466 if (children[i] == pid)
467 return 1;
468 }
469 return 0;
470}
471
472static void mworker_signalhandler(int signum)
473{
474 caught_signal = signum;
475}
476
477static void mworker_register_signals()
478{
479 struct sigaction sa;
480 /* Here we are not using the haproxy async way
481 for signals because it does not exists in
482 the master */
483 memset(&sa, 0, sizeof(struct sigaction));
484 sa.sa_handler = &mworker_signalhandler;
485 sigaction(SIGHUP, &sa, NULL);
486 sigaction(SIGUSR1, &sa, NULL);
487 sigaction(SIGUSR2, &sa, NULL);
488 sigaction(SIGINT, &sa, NULL);
489 sigaction(SIGTERM, &sa, NULL);
490}
491
492static void mworker_block_signals()
493{
494 sigset_t set;
495
496 sigemptyset(&set);
497 sigaddset(&set, SIGUSR1);
498 sigaddset(&set, SIGUSR2);
499 sigaddset(&set, SIGHUP);
500 sigaddset(&set, SIGINT);
501 sigaddset(&set, SIGTERM);
502 sigprocmask(SIG_SETMASK, &set, NULL);
503}
504
505static void mworker_unblock_signals()
506{
507 sigset_t set;
508
509 sigemptyset(&set);
510 sigaddset(&set, SIGUSR1);
511 sigaddset(&set, SIGUSR2);
512 sigaddset(&set, SIGHUP);
513 sigaddset(&set, SIGINT);
514 sigaddset(&set, SIGTERM);
515 sigprocmask(SIG_UNBLOCK, &set, NULL);
516}
517
518static void mworker_unregister_signals()
519{
520 signal(SIGINT, SIG_DFL);
521 signal(SIGTERM, SIG_DFL);
522 signal(SIGHUP, SIG_IGN);
523 signal(SIGUSR1, SIG_IGN);
524 signal(SIGUSR2, SIG_IGN);
525}
526
527/*
528 * Send signal to every known children.
529 */
530
531static void mworker_kill(int sig)
532{
533 int i;
534
535 tell_old_pids(sig);
536 if (children) {
537 for (i = 0; i < global.nbproc; i++)
538 kill(children[i], sig);
539 }
540}
541
Willy Tarreaubaaee002006-06-26 02:48:02 +0200542/*
William Lallemand73b85e72017-06-01 17:38:51 +0200543 * remove a pid forom the olpid array and decrease nb_oldpids
544 * return 1 pid was found otherwise return 0
545 */
546
547int delete_oldpid(int pid)
548{
549 int i;
550
551 for (i = 0; i < nb_oldpids; i++) {
552 if (oldpids[i] == pid) {
553 oldpids[i] = oldpids[nb_oldpids - 1];
554 oldpids[nb_oldpids - 1] = 0;
555 nb_oldpids--;
556 return 1;
557 }
558 }
559 return 0;
560}
561
William Lallemand85b0bd92017-06-01 17:38:53 +0200562
563static void get_cur_unixsocket()
564{
565 /* if -x was used, try to update the stat socket if not available anymore */
566 if (global.stats_fe) {
567 struct bind_conf *bind_conf;
568
569 /* pass through all stats socket */
570 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
571 struct listener *l;
572
573 list_for_each_entry(l, &bind_conf->listeners, by_bind) {
574
575 if (l->addr.ss_family == AF_UNIX &&
576 (bind_conf->level & ACCESS_FD_LISTENERS)) {
577 const struct sockaddr_un *un;
578
579 un = (struct sockaddr_un *)&l->addr;
580 /* priority to old_unixsocket */
581 if (!cur_unixsocket) {
582 cur_unixsocket = strdup(un->sun_path);
583 } else {
584 if (old_unixsocket && !strcmp(un->sun_path, old_unixsocket)) {
585 free(cur_unixsocket);
586 cur_unixsocket = strdup(old_unixsocket);
587 return;
588 }
589 }
590 }
591 }
592 }
593 }
594 if (!cur_unixsocket && old_unixsocket)
595 cur_unixsocket = strdup(old_unixsocket);
596}
597
William Lallemand73b85e72017-06-01 17:38:51 +0200598/*
599 * When called, this function reexec haproxy with -sf followed by current
600 * children PIDs and possibily old children PIDs if they didn't leave yet.
601 */
602static void mworker_reload()
603{
604 int next_argc = 0;
605 int j;
606 char *msg = NULL;
607
608 mworker_block_signals();
609 mworker_unregister_signals();
610 setenv("HAPROXY_MWORKER_REEXEC", "1", 1);
611
612 /* compute length */
613 while (next_argv[next_argc])
614 next_argc++;
615
William Lallemand85b0bd92017-06-01 17:38:53 +0200616 /* 1 for haproxy -sf, 2 for -x /socket */
617 next_argv = realloc(next_argv, (next_argc + 1 + 2 + global.nbproc + nb_oldpids + 1) * sizeof(char *));
William Lallemand73b85e72017-06-01 17:38:51 +0200618 if (next_argv == NULL)
619 goto alloc_error;
620
621
622 /* add -sf <PID>* to argv */
623 if (children || nb_oldpids > 0)
624 next_argv[next_argc++] = "-sf";
625 if (children) {
626 for (j = 0; j < global.nbproc; next_argc++,j++) {
627 next_argv[next_argc] = memprintf(&msg, "%d", children[j]);
628 if (next_argv[next_argc] == NULL)
629 goto alloc_error;
630 msg = NULL;
631 }
632 }
633 /* copy old process PIDs */
634 for (j = 0; j < nb_oldpids; next_argc++,j++) {
635 next_argv[next_argc] = memprintf(&msg, "%d", oldpids[j]);
636 if (next_argv[next_argc] == NULL)
637 goto alloc_error;
638 msg = NULL;
639 }
640 next_argv[next_argc] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200641
William Lallemand2bf6d622017-06-20 11:20:23 +0200642 /* add the -x option with the stat socket */
William Lallemand85b0bd92017-06-01 17:38:53 +0200643 if (cur_unixsocket) {
644
William Lallemand2bf6d622017-06-20 11:20:23 +0200645 next_argv[next_argc++] = "-x";
646 next_argv[next_argc++] = (char *)cur_unixsocket;
647 next_argv[next_argc++] = NULL;
William Lallemand85b0bd92017-06-01 17:38:53 +0200648 }
649
William Lallemand73b85e72017-06-01 17:38:51 +0200650 deinit(); /* we don't want to leak FD there */
651 Warning("Reexecuting Master process\n");
652 execv(next_argv[0], next_argv);
653
654alloc_error:
655 Warning("Cannot allocate memory\n");
656 Warning("Failed to reexecute the master processs [%d]\n", pid);
657 return;
658}
659
660
661/*
662 * Wait for every children to exit
663 */
664
665static void mworker_wait()
666{
667 int exitpid = -1;
668 int status = 0;
669
670 mworker_register_signals();
671 mworker_unblock_signals();
672
673 while (1) {
674
675 while (((exitpid = wait(&status)) == -1) && errno == EINTR) {
676 int sig = caught_signal;
677 if (sig == SIGUSR2 || sig == SIGHUP) {
678 mworker_reload();
679 } else {
680 Warning("Exiting Master process...\n");
681 mworker_kill(sig);
682 mworker_unregister_signals();
683 }
684 caught_signal = 0;
685 }
686
687 if (exitpid == -1 && errno == ECHILD) {
688 Warning("All workers are left. Leaving... (%d)\n", status);
William Lallemandcb11fd22017-06-01 17:38:52 +0200689 atexit_flag = 0;
William Lallemand73b85e72017-06-01 17:38:51 +0200690 exit(status); /* parent must leave using the latest status code known */
691 }
692
693 if (WIFEXITED(status))
694 status = WEXITSTATUS(status);
695 else if (WIFSIGNALED(status))
696 status = 128 + WTERMSIG(status);
697 else if (WIFSTOPPED(status))
698 status = 128 + WSTOPSIG(status);
699 else
700 status = 255;
701
702 if (!children) {
703 Warning("Worker %d left with exit code %d\n", exitpid, status);
704 } else {
705 /* check if exited child was in the current children list */
706 if (current_child(exitpid)) {
707 Alert("Current worker %d left with exit code %d\n", exitpid, status);
William Lallemand69f9b3b2017-06-01 17:38:54 +0200708 if (status != 0 && status != 130 && status != 143
709 && global.tune.options & GTUNE_EXIT_ONFAILURE) {
710 Alert("exit-on-failure: killing every workers with SIGTERM\n");
711 mworker_kill(SIGTERM);
712 }
William Lallemand73b85e72017-06-01 17:38:51 +0200713 } else {
714 Warning("Former worker %d left with exit code %d\n", exitpid, status);
715 delete_oldpid(exitpid);
716 }
717 }
718 }
719}
720
William Lallemandcb11fd22017-06-01 17:38:52 +0200721
722/*
723 * Reexec the process in failure mode, instead of exiting
724 */
725void reexec_on_failure()
726{
727 if (!atexit_flag)
728 return;
729
730 setenv("HAPROXY_MWORKER_WAIT_ONLY", "1", 1);
731
732 Warning("Reexecuting Master process in waitpid mode\n");
733 mworker_reload();
734
735 Warning("Failed to reexecute the master processs\n");
736}
William Lallemand73b85e72017-06-01 17:38:51 +0200737
738
739/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200740 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
741 * a signal zero to all subscribers. This means that it's as easy as
742 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200743 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100744static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200745{
746 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200747 signal_unregister_handler(sh);
Christopher Fauletb349e482017-08-29 09:52:38 +0200748 pool_gc2(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200749}
750
751/*
752 * upon SIGTTOU, we pause everything
753 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100754static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200755{
756 pause_proxies();
Christopher Fauletb349e482017-08-29 09:52:38 +0200757 pool_gc2(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200758}
759
760/*
761 * upon SIGTTIN, let's have a soft stop.
762 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100763static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200764{
Willy Tarreaube58c382011-07-24 18:28:10 +0200765 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200766}
767
768/*
769 * this function dumps every server's state when the process receives SIGHUP.
770 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100771static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200772{
773 struct proxy *p = proxy;
774
775 Warning("SIGHUP received, dumping servers states.\n");
776 while (p) {
777 struct server *s = p->srv;
778
779 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
780 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100781 chunk_printf(&trash,
782 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
783 p->id, s->id,
Emeric Brun52a91d32017-08-31 14:41:55 +0200784 (s->cur_state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100785 s->cur_sess, s->nbpend, s->counters.cum_sess);
786 Warning("%s\n", trash.str);
787 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200788 s = s->next;
789 }
790
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200791 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
792 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100793 chunk_printf(&trash,
794 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
795 p->id,
796 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 +0200797 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100798 chunk_printf(&trash,
799 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
800 p->id,
801 (p->srv_bck) ? "is running on backup servers" : "has no server available",
802 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 +0200803 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100804 chunk_printf(&trash,
805 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
806 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
807 p->id, p->srv_act, p->srv_bck,
808 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 +0200809 }
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100810 Warning("%s\n", trash.str);
811 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200812
813 p = p->next;
814 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200815}
816
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100817static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200818{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200819 /* dump memory usage then free everything possible */
820 dump_pools();
Christopher Fauletb349e482017-08-29 09:52:38 +0200821 pool_gc2(NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200822}
823
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200824/* This function check if cfg_cfgfiles containes directories.
825 * If it find one, it add all the files (and only files) it containes
826 * in cfg_cfgfiles in place of the directory (and remove the directory).
827 * It add the files in lexical order.
828 * It add only files with .cfg extension.
829 * It doesn't add files with name starting with '.'
830 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100831static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200832{
833 struct wordlist *wl, *wlb;
834 char *err = NULL;
835
836 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
837 struct stat file_stat;
838 struct dirent **dir_entries = NULL;
839 int dir_entries_nb;
840 int dir_entries_it;
841
842 if (stat(wl->s, &file_stat)) {
843 Alert("Cannot open configuration file/directory %s : %s\n",
844 wl->s,
845 strerror(errno));
846 exit(1);
847 }
848
849 if (!S_ISDIR(file_stat.st_mode))
850 continue;
851
852 /* from this point wl->s is a directory */
853
854 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
855 if (dir_entries_nb < 0) {
856 Alert("Cannot open configuration directory %s : %s\n",
857 wl->s,
858 strerror(errno));
859 exit(1);
860 }
861
862 /* for each element in the directory wl->s */
863 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
864 struct dirent *dir_entry = dir_entries[dir_entries_it];
865 char *filename = NULL;
866 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
867
868 /* don't add filename that begin with .
869 * only add filename with .cfg extention
870 */
871 if (dir_entry->d_name[0] == '.' ||
872 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
873 goto next_dir_entry;
874
875 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
876 Alert("Cannot load configuration files %s : out of memory.\n",
877 filename);
878 exit(1);
879 }
880
881 if (stat(filename, &file_stat)) {
882 Alert("Cannot open configuration file %s : %s\n",
883 wl->s,
884 strerror(errno));
885 exit(1);
886 }
887
888 /* don't add anything else than regular file in cfg_cfgfiles
889 * this way we avoid loops
890 */
891 if (!S_ISREG(file_stat.st_mode))
892 goto next_dir_entry;
893
894 if (!list_append_word(&wl->list, filename, &err)) {
895 Alert("Cannot load configuration files %s : %s\n",
896 filename,
897 err);
898 exit(1);
899 }
900
901next_dir_entry:
902 free(filename);
903 free(dir_entry);
904 }
905
906 free(dir_entries);
907
908 /* remove the current directory (wl) from cfg_cfgfiles */
909 free(wl->s);
910 LIST_DEL(&wl->list);
911 free(wl);
912 }
913
914 free(err);
915}
916
Olivier Houchardf73629d2017-04-05 22:33:04 +0200917static int get_old_sockets(const char *unixsocket)
918{
919 char *cmsgbuf = NULL, *tmpbuf = NULL;
920 int *tmpfd = NULL;
921 struct sockaddr_un addr;
922 struct cmsghdr *cmsg;
923 struct msghdr msghdr;
924 struct iovec iov;
925 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +0200926 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +0200927 int sock = -1;
928 int ret = -1;
929 int ret2 = -1;
930 int fd_nb;
931 int got_fd = 0;
932 int i = 0;
933 size_t maxoff = 0, curoff = 0;
934
935 memset(&msghdr, 0, sizeof(msghdr));
936 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
937 if (!cmsgbuf) {
938 Warning("Failed to allocate memory to send sockets\n");
939 goto out;
940 }
941 sock = socket(PF_UNIX, SOCK_STREAM, 0);
942 if (sock < 0) {
943 Warning("Failed to connect to the old process socket '%s'\n",
944 unixsocket);
945 goto out;
946 }
947 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path));
948 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
949 addr.sun_family = PF_UNIX;
950 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
951 if (ret < 0) {
952 Warning("Failed to connect to the old process socket '%s'\n",
953 unixsocket);
954 goto out;
955 }
Olivier Houchard54740872017-04-06 14:45:14 +0200956 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +0200957 iov.iov_base = &fd_nb;
958 iov.iov_len = sizeof(fd_nb);
959 msghdr.msg_iov = &iov;
960 msghdr.msg_iovlen = 1;
961 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
962 /* First, get the number of file descriptors to be received */
963 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
964 Warning("Failed to get the number of sockets to be transferred !\n");
965 goto out;
966 }
967 if (fd_nb == 0) {
968 ret = 0;
969 goto out;
970 }
971 tmpbuf = malloc(fd_nb * (1 + NAME_MAX + 1 + IFNAMSIZ + sizeof(int)));
972 if (tmpbuf == NULL) {
973 Warning("Failed to allocate memory while receiving sockets\n");
974 goto out;
975 }
976 tmpfd = malloc(fd_nb * sizeof(int));
977 if (tmpfd == NULL) {
978 Warning("Failed to allocate memory while receiving sockets\n");
979 goto out;
980 }
981 msghdr.msg_control = cmsgbuf;
982 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
983 iov.iov_len = MAX_SEND_FD * (1 + NAME_MAX + 1 + IFNAMSIZ + sizeof(int));
984 do {
985 int ret3;
986
987 iov.iov_base = tmpbuf + curoff;
988 ret = recvmsg(sock, &msghdr, 0);
989 if (ret == -1 && errno == EINTR)
990 continue;
991 if (ret <= 0)
992 break;
993 /* Send an ack to let the sender know we got the sockets
994 * and it can send some more
995 */
996 do {
997 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
998 } while (ret3 == -1 && errno == EINTR);
999 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
1000 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
1001 if (cmsg->cmsg_level == SOL_SOCKET &&
1002 cmsg->cmsg_type == SCM_RIGHTS) {
1003 size_t totlen = cmsg->cmsg_len -
1004 CMSG_LEN(0);
1005 if (totlen / sizeof(int) + got_fd > fd_nb) {
1006 Warning("Got to many sockets !\n");
1007 goto out;
1008 }
1009 /*
1010 * Be paranoid and use memcpy() to avoid any
1011 * potential alignement issue.
1012 */
1013 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
1014 got_fd += totlen / sizeof(int);
1015 }
1016 }
1017 curoff += ret;
1018 } while (got_fd < fd_nb);
1019
1020 if (got_fd != fd_nb) {
1021 Warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
1022 fd_nb, got_fd);
1023 goto out;
1024 }
1025 maxoff = curoff;
1026 curoff = 0;
1027 for (i = 0; i < got_fd; i++) {
1028 int fd = tmpfd[i];
1029 socklen_t socklen;
1030 int len;
1031
1032 xfer_sock = calloc(1, sizeof(*xfer_sock));
1033 if (!xfer_sock) {
1034 Warning("Failed to allocate memory in get_old_sockets() !\n");
1035 break;
1036 }
1037 xfer_sock->fd = -1;
1038
1039 socklen = sizeof(xfer_sock->addr);
1040 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
1041 Warning("Failed to get socket address\n");
1042 free(xfer_sock);
Olivier Houchardbe7b1ce2017-07-17 17:25:33 +02001043 xfer_sock = NULL;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001044 continue;
1045 }
1046 if (curoff >= maxoff) {
1047 Warning("Inconsistency while transferring sockets\n");
1048 goto out;
1049 }
1050 len = tmpbuf[curoff++];
1051 if (len > 0) {
1052 /* We have a namespace */
1053 if (curoff + len > maxoff) {
1054 Warning("Inconsistency while transferring sockets\n");
1055 goto out;
1056 }
1057 xfer_sock->namespace = malloc(len + 1);
1058 if (!xfer_sock->namespace) {
1059 Warning("Failed to allocate memory while transferring sockets\n");
1060 goto out;
1061 }
1062 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
1063 xfer_sock->namespace[len] = 0;
1064 curoff += len;
1065 }
1066 if (curoff >= maxoff) {
1067 Warning("Inconsistency while transferring sockets\n");
1068 goto out;
1069 }
1070 len = tmpbuf[curoff++];
1071 if (len > 0) {
1072 /* We have an interface */
1073 if (curoff + len > maxoff) {
1074 Warning("Inconsistency while transferring sockets\n");
1075 goto out;
1076 }
1077 xfer_sock->iface = malloc(len + 1);
1078 if (!xfer_sock->iface) {
1079 Warning("Failed to allocate memory while transferring sockets\n");
1080 goto out;
1081 }
1082 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
1083 xfer_sock->namespace[len] = 0;
1084 curoff += len;
1085 }
1086 if (curoff + sizeof(int) > maxoff) {
1087 Warning("Inconsistency while transferring sockets\n");
1088 goto out;
1089 }
1090 memcpy(&xfer_sock->options, &tmpbuf[curoff],
1091 sizeof(xfer_sock->options));
1092 curoff += sizeof(xfer_sock->options);
1093
1094 xfer_sock->fd = fd;
1095 if (xfer_sock_list)
1096 xfer_sock_list->prev = xfer_sock;
1097 xfer_sock->next = xfer_sock_list;
1098 xfer_sock->prev = NULL;
1099 xfer_sock_list = xfer_sock;
1100 xfer_sock = NULL;
1101 }
1102
1103 ret2 = 0;
1104out:
1105 /* If we failed midway make sure to close the remaining
1106 * file descriptors
1107 */
1108 if (tmpfd != NULL && i < got_fd) {
1109 for (; i < got_fd; i++) {
1110 close(tmpfd[i]);
1111 }
1112 }
1113 free(tmpbuf);
1114 free(tmpfd);
1115 free(cmsgbuf);
1116 if (sock != -1)
1117 close(sock);
1118 if (xfer_sock) {
1119 free(xfer_sock->namespace);
1120 free(xfer_sock->iface);
1121 if (xfer_sock->fd != -1)
1122 close(xfer_sock->fd);
1123 free(xfer_sock);
1124 }
1125 return (ret2);
1126}
1127
Willy Tarreaubaaee002006-06-26 02:48:02 +02001128/*
William Lallemand73b85e72017-06-01 17:38:51 +02001129 * copy and cleanup the current argv
1130 * Remove the -sf /-st parameters
1131 * Return an allocated copy of argv
1132 */
1133
1134static char **copy_argv(int argc, char **argv)
1135{
1136 char **newargv;
William Lallemand2bf6d622017-06-20 11:20:23 +02001137 int i = 0, j = 0;
William Lallemand73b85e72017-06-01 17:38:51 +02001138
1139 newargv = calloc(argc + 2, sizeof(char *));
1140 if (newargv == NULL) {
1141 Warning("Cannot allocate memory\n");
1142 return NULL;
1143 }
1144
William Lallemand2bf6d622017-06-20 11:20:23 +02001145 while (i < argc) {
1146 /* -sf or -st or -x */
1147 if ((argv[i][1] == 's' && (argv[i][2] == 'f' || argv[i][2] == 't')) || argv[i][1] == 'x' ) {
1148 /* list of pids to finish ('f') or terminate ('t') or unix socket (-x) */
William Lallemand73b85e72017-06-01 17:38:51 +02001149 i++;
1150 while (i < argc && argv[i][0] != '-') {
1151 i++;
1152 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001153 continue;
William Lallemand73b85e72017-06-01 17:38:51 +02001154 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001155
1156 newargv[j++] = argv[i++];
William Lallemand73b85e72017-06-01 17:38:51 +02001157 }
William Lallemand2bf6d622017-06-20 11:20:23 +02001158
William Lallemand73b85e72017-06-01 17:38:51 +02001159 return newargv;
1160}
1161
1162/*
Willy Tarreaubaaee002006-06-26 02:48:02 +02001163 * This function initializes all the necessary variables. It only returns
1164 * if everything is OK. If something fails, it exits.
1165 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001166static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001167{
Willy Tarreaubaaee002006-06-26 02:48:02 +02001168 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001169 char *tmp;
1170 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +02001171 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +02001172 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +01001173 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +00001174 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +02001175 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +02001176 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +01001177 struct post_check_fct *pcf;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001178
Christopher Faulete3a5e352017-10-24 13:53:54 +02001179 global.mode = MODE_STARTING;
William Lallemand73b85e72017-06-01 17:38:51 +02001180 next_argv = copy_argv(argc, argv);
1181
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001182 if (!init_trash_buffers(1)) {
Christopher Faulet748919a2017-07-26 14:59:46 +02001183 Alert("failed to initialize trash buffers.\n");
1184 exit(1);
1185 }
David du Colombier7af46052012-05-16 14:16:48 +02001186
Emeric Brun2b920a12010-09-23 18:30:22 +02001187 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
1188 * the string in case of truncation, and at least FreeBSD appears not to do
1189 * it.
1190 */
1191 memset(hostname, 0, sizeof(hostname));
1192 gethostname(hostname, sizeof(hostname) - 1);
1193 memset(localpeer, 0, sizeof(localpeer));
1194 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
1195
Willy Tarreaubaaee002006-06-26 02:48:02 +02001196 /*
1197 * Initialize the previously static variables.
1198 */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001199
Willy Tarreau3eba98a2009-01-25 13:56:13 +01001200 totalconn = actconn = maxfd = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001201 killed = 0;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001202
Willy Tarreaubaaee002006-06-26 02:48:02 +02001203
1204#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +01001205 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001206#endif
1207
Benoit GARNIERb413c2a2016-03-27 11:08:03 +02001208 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001209 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001210 start_date = now;
1211
Willy Tarreau84310e22014-02-14 11:59:04 +01001212 srandom(now_ms - getpid());
1213
Dragan Dosen835b9212016-02-12 13:23:03 +01001214 init_log();
Willy Tarreau29857942009-05-10 09:01:21 +02001215 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +01001216 if (init_acl() != 0)
1217 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001218 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +02001219 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +02001220 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001221 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +02001222 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001223 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +01001224 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001225
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001226 /* Initialise lua. */
1227 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +01001228
Christopher Fauletff2613e2016-11-09 11:36:17 +01001229 /* Initialize process vars */
1230 vars_init(&global.vars, SCOPE_PROC);
1231
Willy Tarreau43b78992009-01-25 15:42:27 +01001232 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001233#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001234 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001235#endif
1236#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +01001237 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001238#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001239#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +01001240 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001241#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001242#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001243 global.tune.options |= GTUNE_USE_SPLICE;
1244#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001245#if defined(USE_GETADDRINFO)
1246 global.tune.options |= GTUNE_USE_GAI;
1247#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001248#if defined(SO_REUSEPORT)
1249 global.tune.options |= GTUNE_USE_REUSEPORT;
1250#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02001251
1252 pid = getpid();
1253 progname = *argv;
1254 while ((tmp = strchr(progname, '/')) != NULL)
1255 progname = tmp + 1;
1256
Kevinm48936af2010-12-22 16:08:21 +00001257 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +02001258 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +00001259
Willy Tarreaubaaee002006-06-26 02:48:02 +02001260 argc--; argv++;
1261 while (argc > 0) {
1262 char *flag;
1263
1264 if (**argv == '-') {
1265 flag = *argv+1;
1266
1267 /* 1 arg */
1268 if (*flag == 'v') {
1269 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +01001270 if (flag[1] == 'v') /* -vv */
1271 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001272 exit(0);
1273 }
1274#if defined(ENABLE_EPOLL)
1275 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +01001276 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001277#endif
1278#if defined(ENABLE_POLL)
1279 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +01001280 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001281#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +02001282#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001283 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +01001284 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001285#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +02001286#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +01001287 else if (*flag == 'd' && flag[1] == 'S')
1288 global.tune.options &= ~GTUNE_USE_SPLICE;
1289#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +02001290#if defined(USE_GETADDRINFO)
1291 else if (*flag == 'd' && flag[1] == 'G')
1292 global.tune.options &= ~GTUNE_USE_GAI;
1293#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +00001294#if defined(SO_REUSEPORT)
1295 else if (*flag == 'd' && flag[1] == 'R')
1296 global.tune.options &= ~GTUNE_USE_REUSEPORT;
1297#endif
Emeric Brun850efd52014-01-29 12:24:34 +01001298 else if (*flag == 'd' && flag[1] == 'V')
1299 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001300 else if (*flag == 'V')
1301 arg_mode |= MODE_VERBOSE;
1302 else if (*flag == 'd' && flag[1] == 'b')
1303 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +02001304 else if (*flag == 'd' && flag[1] == 'M')
1305 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +01001306 else if (*flag == 'd' && flag[1] == 'r')
1307 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001308 else if (*flag == 'd')
1309 arg_mode |= MODE_DEBUG;
1310 else if (*flag == 'c')
1311 arg_mode |= MODE_CHECK;
William Lallemand095ba4c2017-06-01 17:38:50 +02001312 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +02001313 arg_mode |= MODE_DAEMON;
William Lallemand095ba4c2017-06-01 17:38:50 +02001314 else if (*flag == 'W')
1315 arg_mode |= MODE_MWORKER;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001316 else if (*flag == 'q')
1317 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +02001318 else if (*flag == 'x') {
William Lallemand45eff442017-06-19 15:57:55 +02001319 if (argc <= 1 || argv[1][0] == '-') {
1320 Alert("Unix socket path expected with the -x flag\n\n");
1321 usage(progname);
Olivier Houchardf73629d2017-04-05 22:33:04 +02001322 }
William Lallemand4fc09692017-06-19 16:37:19 +02001323 if (old_unixsocket)
1324 Warning("-x option already set, overwriting the value\n");
Olivier Houchardf73629d2017-04-05 22:33:04 +02001325 old_unixsocket = argv[1];
William Lallemand4fc09692017-06-19 16:37:19 +02001326
Olivier Houchardf73629d2017-04-05 22:33:04 +02001327 argv++;
1328 argc--;
1329 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001330 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
1331 /* list of pids to finish ('f') or terminate ('t') */
1332
1333 if (flag[1] == 'f')
1334 oldpids_sig = SIGUSR1; /* finish then exit */
1335 else
1336 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001337 while (argc > 1 && argv[1][0] != '-') {
1338 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
1339 if (!oldpids) {
1340 Alert("Cannot allocate old pid : out of memory.\n");
1341 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001342 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +02001343 argc--; argv++;
1344 oldpids[nb_oldpids] = atol(*argv);
1345 if (oldpids[nb_oldpids] <= 0)
1346 usage(progname);
1347 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001348 }
1349 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001350 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
1351 /* now that's a cfgfile list */
1352 argv++; argc--;
1353 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001354 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
1355 Alert("Cannot load configuration file/directory %s : %s\n",
1356 *argv,
1357 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +02001358 exit(1);
1359 }
Willy Tarreaua088d312015-10-08 11:58:48 +02001360 argv++; argc--;
1361 }
1362 break;
1363 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001364 else { /* >=2 args */
1365 argv++; argc--;
1366 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001367 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001368
1369 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +02001370 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001371 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +01001372 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001373 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +02001374 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +02001375 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +02001376 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
1377 Alert("Cannot load configuration file/directory %s : %s\n",
1378 *argv,
1379 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +02001380 exit(1);
1381 }
Willy Tarreau5d01a632009-06-22 16:02:30 +02001382 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001383 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001384 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001385 }
1386 }
1387 }
1388 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +02001389 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001390 argv++; argc--;
1391 }
1392
Christopher Faulete3a5e352017-10-24 13:53:54 +02001393 global.mode |= (arg_mode & (MODE_DAEMON | MODE_MWORKER | MODE_FOREGROUND | MODE_VERBOSE
1394 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001395
William Lallemandcb11fd22017-06-01 17:38:52 +02001396 /* Master workers wait mode */
1397 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_WAIT_ONLY") != NULL)) {
1398
1399 unsetenv("HAPROXY_MWORKER_WAIT_ONLY");
1400 mworker_wait();
1401 }
1402
1403 if ((global.mode & MODE_MWORKER) && (getenv("HAPROXY_MWORKER_REEXEC") != NULL)) {
1404 atexit_flag = 1;
1405 atexit(reexec_on_failure);
1406 }
1407
Willy Tarreau576132e2011-09-10 19:26:56 +02001408 if (change_dir && chdir(change_dir) < 0) {
1409 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
1410 exit(1);
1411 }
1412
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001413 /* handle cfgfiles that are actualy directories */
1414 cfgfiles_expand_directories();
1415
1416 if (LIST_ISEMPTY(&cfg_cfgfiles))
1417 usage(progname);
1418
Willy Tarreaubaaee002006-06-26 02:48:02 +02001419 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001420
1421 init_default_instance();
1422
Willy Tarreau477ecd82010-01-03 21:12:30 +01001423 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +01001424 int ret;
1425
Willy Tarreau477ecd82010-01-03 21:12:30 +01001426 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +01001427 if (ret == -1) {
1428 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +01001429 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +01001430 exit(1);
1431 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +01001432 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +01001433 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +01001434 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +02001435 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +02001436 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001437 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001438
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001439 /* do not try to resolve arguments nor to spot inconsistencies when
1440 * the configuration contains fatal errors caused by files not found
1441 * or failed memory allocations.
1442 */
1443 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1444 Alert("Fatal errors found in configuration.\n");
1445 exit(1);
1446 }
1447
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +01001448 pattern_finalize_config();
1449
Willy Tarreaubb925012009-07-23 13:36:36 +02001450 err_code |= check_config_validity();
1451 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1452 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001453 exit(1);
1454 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001455
Willy Tarreau70060452015-12-14 12:46:07 +01001456 /* recompute the amount of per-process memory depending on nbproc and
1457 * the shared SSL cache size (allowed to exist in all processes).
1458 */
1459 if (global.rlimit_memmax_all) {
1460#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
1461 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
1462
1463 global.rlimit_memmax =
1464 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
1465 ssl_cache_bytes) / global.nbproc +
1466 ssl_cache_bytes + 1048575LL) / 1048576LL;
1467#else
1468 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
1469#endif
1470 }
1471
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001472#ifdef CONFIG_HAP_NS
1473 err_code |= netns_init();
1474 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1475 Alert("Failed to initialize namespace support.\n");
1476 exit(1);
1477 }
1478#endif
1479
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001480 /* Apply server states */
1481 apply_server_state();
1482
1483 for (px = proxy; px; px = px->next)
1484 srv_compute_all_admin_states(px);
1485
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001486 /* Apply servers' configured address */
1487 err_code |= srv_init_addr();
1488 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1489 Alert("Failed to initialize server(s) addr.\n");
1490 exit(1);
1491 }
1492
Willy Tarreaubaaee002006-06-26 02:48:02 +02001493 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001494 struct peers *pr;
1495 struct proxy *px;
1496
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001497 for (pr = cfg_peers; pr; pr = pr->next)
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001498 if (pr->peers_fe)
1499 break;
1500
1501 for (px = proxy; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02001502 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001503 break;
1504
1505 if (pr || px) {
1506 /* At least one peer or one listener has been found */
1507 qfprintf(stdout, "Configuration file is valid\n");
1508 exit(0);
1509 }
1510 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
1511 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001512 }
1513
Emeric Brunc60def82017-09-27 14:59:38 +02001514 global_listener_queue_task = task_new(MAX_THREADS_MASK);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001515 if (!global_listener_queue_task) {
1516 Alert("Out of memory when initializing global task\n");
1517 exit(1);
1518 }
1519 /* very simple initialization, users will queue the task if needed */
1520 global_listener_queue_task->context = NULL; /* not even a context! */
1521 global_listener_queue_task->process = manage_global_listener_queue;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001522
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001523 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02001524 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02001525
Willy Tarreaue6945732016-12-21 19:57:00 +01001526 list_for_each_entry(pcf, &post_check_list, list) {
1527 err_code |= pcf->fct();
1528 if (err_code & (ERR_ABORT|ERR_FATAL))
1529 exit(1);
1530 }
1531
Willy Tarreaubaaee002006-06-26 02:48:02 +02001532 if (cfg_maxconn > 0)
1533 global.maxconn = cfg_maxconn;
1534
1535 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02001536 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001537 global.pidfile = strdup(cfg_pidfile);
1538 }
1539
Willy Tarreaud0256482015-01-15 21:45:22 +01001540 /* Now we want to compute the maxconn and possibly maxsslconn values.
1541 * It's a bit tricky. If memmax is not set, maxconn defaults to
1542 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
1543 *
1544 * If memmax is set, then it depends on which values are set. If
1545 * maxsslconn is set, we use memmax to determine how many cleartext
1546 * connections may be added, and set maxconn to the sum of the two.
1547 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1548 * the remaining amount of memory between memmax and the cleartext
1549 * connections. If neither are set, then it is considered that all
1550 * connections are SSL-capable, and maxconn is computed based on this,
1551 * then maxsslconn accordingly. We need to know if SSL is used on the
1552 * frontends, backends, or both, because when it's used on both sides,
1553 * we need twice the value for maxsslconn, but we only count the
1554 * handshake once since it is not performed on the two sides at the
1555 * same time (frontend-side is terminated before backend-side begins).
1556 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001557 * ssl_handshake_cost during its initialization. In any case, if
1558 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1559 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001560 */
1561 if (!global.rlimit_memmax) {
1562 if (global.maxconn == 0) {
1563 global.maxconn = DEFAULT_MAXCONN;
1564 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1565 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1566 }
1567 }
1568#ifdef USE_OPENSSL
1569 else if (!global.maxconn && !global.maxsslconn &&
1570 (global.ssl_used_frontend || global.ssl_used_backend)) {
1571 /* memmax is set, compute everything automatically. Here we want
1572 * to ensure that all SSL connections will be served. We take
1573 * care of the number of sides where SSL is used, and consider
1574 * the worst case : SSL used on both sides and doing a handshake
1575 * simultaneously. Note that we can't have more than maxconn
1576 * handshakes at a time by definition, so for the worst case of
1577 * two SSL conns per connection, we count a single handshake.
1578 */
1579 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1580 int64_t mem = global.rlimit_memmax * 1048576ULL;
1581
1582 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1583 mem -= global.maxzlibmem;
1584 mem = mem * MEM_USABLE_RATIO;
1585
1586 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001587 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001588 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1589 global.ssl_handshake_max_cost); // 1 handshake per connection max
1590
1591 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001592#ifdef SYSTEM_MAXCONN
1593 if (global.maxconn > DEFAULT_MAXCONN)
1594 global.maxconn = DEFAULT_MAXCONN;
1595#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001596 global.maxsslconn = sides * global.maxconn;
1597 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1598 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1599 global.maxconn, global.maxsslconn);
1600 }
1601 else if (!global.maxsslconn &&
1602 (global.ssl_used_frontend || global.ssl_used_backend)) {
1603 /* memmax and maxconn are known, compute maxsslconn automatically.
1604 * maxsslconn being forced, we don't know how many of it will be
1605 * on each side if both sides are being used. The worst case is
1606 * when all connections use only one SSL instance because
1607 * handshakes may be on two sides at the same time.
1608 */
1609 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1610 int64_t mem = global.rlimit_memmax * 1048576ULL;
1611 int64_t sslmem;
1612
1613 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1614 mem -= global.maxzlibmem;
1615 mem = mem * MEM_USABLE_RATIO;
1616
Willy Tarreau87b09662015-04-03 00:22:06 +02001617 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001618 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1619 global.maxsslconn = round_2dig(global.maxsslconn);
1620
1621 if (sslmem <= 0 || global.maxsslconn < sides) {
1622 Alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1623 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1624 "without SSL is %d, but %d was found and SSL is in use.\n",
1625 global.rlimit_memmax,
Willy Tarreau87b09662015-04-03 00:22:06 +02001626 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
Willy Tarreaud0256482015-01-15 21:45:22 +01001627 global.maxconn);
1628 exit(1);
1629 }
1630
1631 if (global.maxsslconn > sides * global.maxconn)
1632 global.maxsslconn = sides * global.maxconn;
1633
1634 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1635 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1636 }
1637#endif
1638 else if (!global.maxconn) {
1639 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1640 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1641 int64_t mem = global.rlimit_memmax * 1048576ULL;
1642 int64_t clearmem;
1643
1644 if (global.ssl_used_frontend || global.ssl_used_backend)
1645 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1646
1647 mem -= global.maxzlibmem;
1648 mem = mem * MEM_USABLE_RATIO;
1649
1650 clearmem = mem;
1651 if (sides)
1652 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1653
Willy Tarreau87b09662015-04-03 00:22:06 +02001654 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001655 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001656#ifdef SYSTEM_MAXCONN
1657 if (global.maxconn > DEFAULT_MAXCONN)
1658 global.maxconn = DEFAULT_MAXCONN;
1659#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001660
1661 if (clearmem <= 0 || !global.maxconn) {
1662 Alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
1663 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1664 "is %d, but %d was found.\n",
1665 global.rlimit_memmax,
1666 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
1667 global.maxsslconn);
1668 exit(1);
1669 }
1670
1671 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1672 if (sides && global.maxsslconn > sides * global.maxconn) {
1673 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
1674 "to be limited to %d. Better reduce global.maxsslconn to get more "
1675 "room for extra connections.\n", global.maxsslconn, global.maxconn);
1676 }
1677 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
1678 }
1679 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001680
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001681 if (!global.maxpipes) {
1682 /* maxpipes not specified. Count how many frontends and backends
1683 * may be using splicing, and bound that to maxconn.
1684 */
1685 struct proxy *cur;
1686 int nbfe = 0, nbbe = 0;
1687
1688 for (cur = proxy; cur; cur = cur->next) {
1689 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
1690 if (cur->cap & PR_CAP_FE)
1691 nbfe += cur->maxconn;
1692 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +01001693 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001694 }
1695 }
1696 global.maxpipes = MAX(nbfe, nbbe);
1697 if (global.maxpipes > global.maxconn)
1698 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +01001699 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001700 }
1701
1702
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001703 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001704 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01001705 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001706
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001707 if (global.stats_fe)
1708 global.maxsock += global.stats_fe->maxconn;
1709
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001710 if (cfg_peers) {
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001711 /* peers also need to bypass global maxconn */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001712 struct peers *p = cfg_peers;
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001713
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02001714 for (p = cfg_peers; p; p = p->next)
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001715 if (p->peers_fe)
1716 global.maxsock += p->peers_fe->maxconn;
1717 }
1718
Willy Tarreau1db37712007-06-03 17:16:49 +02001719 if (global.tune.maxpollevents <= 0)
1720 global.tune.maxpollevents = MAX_POLL_EVENTS;
1721
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01001722 if (global.tune.recv_enough == 0)
1723 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
1724
Willy Tarreau27097842015-09-28 13:53:23 +02001725 if (global.tune.maxrewrite < 0)
1726 global.tune.maxrewrite = MAXREWRITE;
1727
Willy Tarreau27a674e2009-08-17 07:23:33 +02001728 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
1729 global.tune.maxrewrite = global.tune.bufsize / 2;
1730
Willy Tarreaubaaee002006-06-26 02:48:02 +02001731 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
1732 /* command line debug mode inhibits configuration mode */
William Lallemand095ba4c2017-06-01 17:38:50 +02001733 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001734 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
1735 }
1736
William Lallemand095ba4c2017-06-01 17:38:50 +02001737 if (arg_mode & MODE_DAEMON) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001738 /* command line daemon mode inhibits foreground and debug modes mode */
1739 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
William Lallemand095ba4c2017-06-01 17:38:50 +02001740 global.mode |= arg_mode & MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001741 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001742
1743 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001744
William Lallemand095ba4c2017-06-01 17:38:50 +02001745 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
1746 Warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
1747 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001748 }
1749
William Lallemand095ba4c2017-06-01 17:38:50 +02001750 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_MWORKER))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001751 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
1752 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
1753 global.nbproc = 1;
1754 }
1755
1756 if (global.nbproc < 1)
1757 global.nbproc = 1;
1758
Christopher Fauletbe0faa22017-08-29 15:37:10 +02001759 if (global.nbthread < 1)
1760 global.nbthread = 1;
1761
Christopher Faulet3ef26392017-08-29 16:46:57 +02001762 /* Realloc trash buffers because global.tune.bufsize may have changed */
Christopher Fauletcd7879a2017-10-27 13:53:47 +02001763 if (!init_trash_buffers(0)) {
Christopher Faulet3ef26392017-08-29 16:46:57 +02001764 Alert("failed to initialize trash buffers.\n");
1765 exit(1);
1766 }
1767
Willy Tarreauef1d1f82007-04-16 00:25:25 +02001768 /*
1769 * Note: we could register external pollers here.
1770 * Built-in pollers have been registered before main().
1771 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001772
Willy Tarreau43b78992009-01-25 15:42:27 +01001773 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001774 disable_poller("kqueue");
1775
Willy Tarreau43b78992009-01-25 15:42:27 +01001776 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001777 disable_poller("epoll");
1778
Willy Tarreau43b78992009-01-25 15:42:27 +01001779 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001780 disable_poller("poll");
1781
Willy Tarreau43b78992009-01-25 15:42:27 +01001782 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001783 disable_poller("select");
1784
1785 /* Note: we could disable any poller by name here */
1786
Christopher Fauletb3f4e142016-03-07 12:46:38 +01001787 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02001788 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01001789 fprintf(stderr, "\n");
1790 list_filters(stderr);
1791 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001792
Willy Tarreau4f60f162007-04-08 16:39:58 +02001793 if (!init_pollers()) {
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001794 Alert("No polling mechanism available.\n"
1795 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
1796 " is too low on this platform to support maxconn and the number of listeners\n"
1797 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
1798 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
Prach Pongpanichb837e682013-05-14 20:56:28 +02001799 " global maxconn setting to accommodate the system's limitation. For reference,\n"
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001800 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
1801 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
1802 " check build settings using 'haproxy -vv'.\n\n",
1803 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001804 exit(1);
1805 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001806 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1807 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001808 }
1809
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001810 if (!global.node)
1811 global.node = strdup(hostname);
1812
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01001813 if (!hlua_post_init())
1814 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01001815
Maxime de Roucy0f503922016-05-13 23:52:55 +02001816 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001817}
1818
Simon Horman6fb82592011-07-15 13:14:11 +09001819static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09001820{
Simon Hormanac821422011-07-15 13:14:09 +09001821 struct acl_term_suite *suite, *suiteb;
1822 struct acl_term *term, *termb;
1823
Simon Horman6fb82592011-07-15 13:14:11 +09001824 if (!cond)
1825 return;
1826
1827 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
1828 list_for_each_entry_safe(term, termb, &suite->terms, list) {
1829 LIST_DEL(&term->list);
1830 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09001831 }
Simon Horman6fb82592011-07-15 13:14:11 +09001832 LIST_DEL(&suite->list);
1833 free(suite);
1834 }
1835
1836 free(cond);
1837}
1838
1839static void deinit_tcp_rules(struct list *rules)
1840{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02001841 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09001842
1843 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09001844 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09001845 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09001846 free(trule);
1847 }
1848}
1849
Simon Horman6fb82592011-07-15 13:14:11 +09001850static void deinit_stick_rules(struct list *rules)
1851{
1852 struct sticking_rule *rule, *ruleb;
1853
1854 list_for_each_entry_safe(rule, ruleb, rules, list) {
1855 LIST_DEL(&rule->list);
1856 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02001857 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09001858 free(rule);
1859 }
1860}
1861
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001862void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001863{
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001864 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001865 struct cap_hdr *h,*h_next;
1866 struct server *s,*s_next;
1867 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001868 struct acl_cond *cond, *condb;
1869 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001870 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001871 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001872 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001873 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001874 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01001875 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001876 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02001877 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01001878 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001879 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01001880 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01001881 struct post_deinit_fct *pdf;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001882 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001883
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001884 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001885 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02001886 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001887 free(p->id);
1888 free(p->check_req);
1889 free(p->cookie_name);
1890 free(p->cookie_domain);
1891 free(p->url_param_name);
1892 free(p->capture_name);
1893 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09001894 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02001895 if (p->conf.logformat_string != default_http_log_format &&
1896 p->conf.logformat_string != default_tcp_log_format &&
1897 p->conf.logformat_string != clf_http_log_format)
1898 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02001899
Willy Tarreau62a61232013-04-12 18:13:46 +02001900 free(p->conf.lfs_file);
1901 free(p->conf.uniqueid_format_string);
1902 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08001903 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001904
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001905 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1906 free(p->conf.logformat_sd_string);
1907 free(p->conf.lfsd_file);
1908
Willy Tarreaua534fea2008-08-03 12:19:50 +02001909 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02001910 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001911
Willy Tarreauf4f04122010-01-28 18:10:50 +01001912 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
1913 LIST_DEL(&cwl->list);
1914 free(cwl->s);
1915 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001916 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001917
Willy Tarreauf4f04122010-01-28 18:10:50 +01001918 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
1919 LIST_DEL(&cwl->list);
1920 free(cwl->s);
1921 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001922 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001923
Willy Tarreaub80c2302007-11-30 20:51:32 +01001924 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
1925 LIST_DEL(&cond->list);
1926 prune_acl_cond(cond);
1927 free(cond);
1928 }
1929
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001930 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001931 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001932 regex_free(exp->preg);
1933 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001934 }
1935
Willy Tarreau98d04852015-05-26 12:18:29 +02001936 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001937 expb = exp;
1938 exp = exp->next;
1939 free(expb);
1940 }
1941
1942 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001943 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001944 regex_free(exp->preg);
1945 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001946 }
1947
Willy Tarreau98d04852015-05-26 12:18:29 +02001948 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001949 expb = exp;
1950 exp = exp->next;
1951 free(expb);
1952 }
1953
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001954 /* build a list of unique uri_auths */
1955 if (!ua)
1956 ua = p->uri_auth;
1957 else {
1958 /* check if p->uri_auth is unique */
1959 for (uap = ua; uap; uap=uap->next)
1960 if (uap == p->uri_auth)
1961 break;
1962
Willy Tarreauaccc4e12008-06-24 11:14:45 +02001963 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001964 /* add it, if it is */
1965 p->uri_auth->next = ua;
1966 ua = p->uri_auth;
1967 }
1968 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001969
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001970 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
1971 LIST_DEL(&acl->list);
1972 prune_acl(acl);
1973 free(acl);
1974 }
1975
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001976 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
1977 LIST_DEL(&srule->list);
1978 prune_acl_cond(srule->cond);
1979 free(srule->cond);
1980 free(srule);
1981 }
1982
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001983 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
1984 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001985 if (rule->cond) {
1986 prune_acl_cond(rule->cond);
1987 free(rule->cond);
Thierry FOURNIER / OZON.IO4ed1c952016-11-24 23:57:54 +01001988 free(rule->file);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001989 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001990 free(rule);
1991 }
1992
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001993 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
1994 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01001995 if (rdr->cond) {
1996 prune_acl_cond(rdr->cond);
1997 free(rdr->cond);
1998 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001999 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01002000 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
2001 LIST_DEL(&lf->list);
2002 free(lf);
2003 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02002004 free(rdr);
2005 }
2006
William Lallemand0f99e342011-10-12 17:50:54 +02002007 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
2008 LIST_DEL(&log->list);
2009 free(log);
2010 }
2011
William Lallemand723b73a2012-02-08 16:37:49 +01002012 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
2013 LIST_DEL(&lf->list);
2014 free(lf);
2015 }
2016
Dragan Dosen0b85ece2015-09-25 19:17:44 +02002017 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
2018 LIST_DEL(&lf->list);
2019 free(lf);
2020 }
2021
Simon Hormanac821422011-07-15 13:14:09 +09002022 deinit_tcp_rules(&p->tcp_req.inspect_rules);
2023 deinit_tcp_rules(&p->tcp_req.l4_rules);
2024
Simon Horman6fb82592011-07-15 13:14:11 +09002025 deinit_stick_rules(&p->storersp_rules);
2026 deinit_stick_rules(&p->sticking_rules);
2027
Willy Tarreaubaaee002006-06-26 02:48:02 +02002028 h = p->req_cap;
2029 while (h) {
2030 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002031 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02002032 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002033 free(h);
2034 h = h_next;
2035 }/* end while(h) */
2036
2037 h = p->rsp_cap;
2038 while (h) {
2039 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002040 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02002041 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002042 free(h);
2043 h = h_next;
2044 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002045
Willy Tarreaubaaee002006-06-26 02:48:02 +02002046 s = p->srv;
2047 while (s) {
2048 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002049
Willy Tarreau5b3a2022012-09-28 15:01:02 +02002050 if (s->check.task) {
2051 task_delete(s->check.task);
2052 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002053 }
Simon Hormand60d6912013-11-25 10:46:36 +09002054 if (s->agent.task) {
2055 task_delete(s->agent.task);
2056 task_free(s->agent.task);
2057 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002058
Willy Tarreau2e993902011-10-31 11:53:20 +01002059 if (s->warmup) {
2060 task_delete(s->warmup);
2061 task_free(s->warmup);
2062 }
2063
Willy Tarreaua534fea2008-08-03 12:19:50 +02002064 free(s->id);
2065 free(s->cookie);
Willy Tarreau1ae1b7b2012-09-28 15:28:30 +02002066 free(s->check.bi);
2067 free(s->check.bo);
Simon Hormand60d6912013-11-25 10:46:36 +09002068 free(s->agent.bi);
2069 free(s->agent.bo);
James Brown55f9ff12015-10-21 18:19:05 -07002070 free(s->agent.send_string);
Christopher Faulet67957bd2017-09-27 11:00:59 +02002071 free(s->hostname_dn);
Sárközi, László34c01792014-09-05 10:08:23 +02002072 free((char*)s->conf.file);
Willy Tarreau17d45382016-12-22 21:16:08 +01002073
2074 if (s->use_ssl || s->check.use_ssl) {
2075 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
2076 xprt_get(XPRT_SSL)->destroy_srv(s);
2077 }
Christopher Faulet29f77e82017-06-08 14:04:45 +02002078 SPIN_DESTROY(&s->lock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002079 free(s);
2080 s = s_next;
2081 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002082
Willy Tarreau4348fad2012-09-20 16:48:07 +02002083 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002084 /*
2085 * Zombie proxy, the listener just pretend to be up
2086 * because they still hold an opened fd.
2087 * Close it and give the listener its real state.
2088 */
2089 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
2090 close(l->fd);
2091 l->state = LI_INIT;
2092 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02002093 unbind_listener(l);
2094 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002095 LIST_DEL(&l->by_fe);
2096 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002097 free(l->name);
2098 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002099 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02002100 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002101
Willy Tarreau4348fad2012-09-20 16:48:07 +02002102 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002103 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01002104 if (bind_conf->xprt->destroy_bind_conf)
2105 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02002106 free(bind_conf->file);
2107 free(bind_conf->arg);
2108 LIST_DEL(&bind_conf->by_fe);
2109 free(bind_conf);
2110 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02002111
Christopher Fauletd7c91962015-04-30 11:48:27 +02002112 flt_deinit(p);
2113
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01002114 free(p->desc);
2115 free(p->fwdfor_hdr_name);
2116
Willy Tarreauff011f22011-01-06 17:51:27 +01002117 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06002118 free_http_res_rules(&p->http_res_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02002119 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01002120
Willy Tarreaucf7f3202007-05-13 22:46:04 +02002121 pool_destroy2(p->req_cap_pool);
2122 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09002123 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002124
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002125 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002126 p = p->next;
Christopher Faulet5b517552017-06-09 14:17:53 +02002127 SPIN_DESTROY(&p0->lbprm.lock);
Christopher Fauletff8abcd2017-06-02 15:33:24 +02002128 SPIN_DESTROY(&p0->lock);
Willy Tarreau4d2d0982007-05-14 00:39:29 +02002129 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002130 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02002131
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002132 while (ua) {
2133 uap = ua;
2134 ua = ua->next;
2135
Willy Tarreaua534fea2008-08-03 12:19:50 +02002136 free(uap->uri_prefix);
2137 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002138 free(uap->node);
2139 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002140
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002141 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01002142 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01002143
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002144 free(uap);
2145 }
2146
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01002147 userlist_free(userlist);
2148
David Carlier834cb2e2015-09-25 12:02:25 +01002149 cfg_unregister_sections();
2150
Christopher Faulet0132d062017-07-26 15:33:35 +02002151 deinit_log_buffers();
Christopher Faulet748919a2017-07-26 14:59:46 +02002152 deinit_trash_buffers();
David Carlier834cb2e2015-09-25 12:02:25 +01002153
Willy Tarreaudd815982007-10-16 12:25:14 +02002154 protocol_unbind_all();
2155
Willy Tarreau05554e62016-12-21 20:46:26 +01002156 list_for_each_entry(pdf, &post_deinit_list, list)
2157 pdf->fct();
2158
Joe Williamsdf5b38f2010-12-29 17:05:48 +01002159 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02002160 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02002161 free(global.chroot); global.chroot = NULL;
2162 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02002163 free(global.node); global.node = NULL;
2164 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02002165 free(oldpids); oldpids = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02002166 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02002167
William Lallemand0f99e342011-10-12 17:50:54 +02002168 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
2169 LIST_DEL(&log->list);
2170 free(log);
2171 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01002172 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02002173 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01002174 LIST_DEL(&wl->list);
2175 free(wl);
2176 }
2177
Willy Tarreaucdb737e2016-12-21 18:43:10 +01002178 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
2179 if (bol->must_free)
2180 free((void *)bol->str);
2181 LIST_DEL(&bol->list);
2182 free(bol);
2183 }
2184
Christopher Fauletff2613e2016-11-09 11:36:17 +01002185 vars_prune(&global.vars, NULL, NULL);
2186
Christopher Fauletad405f12017-08-29 15:30:11 +02002187 deinit_buffer();
2188
Willy Tarreau87b09662015-04-03 00:22:06 +02002189 pool_destroy2(pool2_stream);
Willy Tarreaufeb76402015-04-03 14:10:06 +02002190 pool_destroy2(pool2_session);
Willy Tarreauf2943dc2012-10-26 20:10:28 +02002191 pool_destroy2(pool2_connection);
Olivier Houcharde2b40b92017-09-13 18:30:23 +02002192 pool_destroy2(pool2_connstream);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02002193 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02002194 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02002195 pool_destroy2(pool2_capture);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02002196 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002197 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02002198 pool_destroy2(pool2_hdr_idx);
Willy Tarreau63986c72015-04-03 22:55:33 +02002199 pool_destroy2(pool2_http_txn);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02002200 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002201} /* end deinit() */
2202
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002203void mworker_pipe_handler(int fd)
2204{
2205 char c;
2206
2207 while (read(fd, &c, 1) == -1) {
2208 if (errno == EINTR)
2209 continue;
2210 if (errno == EAGAIN) {
2211 fd_cant_recv(fd);
2212 return;
2213 }
2214 break;
2215 }
2216
2217 deinit();
2218 exit(EXIT_FAILURE);
2219 return;
2220}
2221
2222void mworker_pipe_register(int pipefd[2])
2223{
2224 close(mworker_pipe[1]); /* close the write end of the master pipe in the children */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002225
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002226 fcntl(mworker_pipe[0], F_SETFL, O_NONBLOCK);
2227 fdtab[mworker_pipe[0]].owner = mworker_pipe;
2228 fdtab[mworker_pipe[0]].iocb = mworker_pipe_handler;
Christopher Faulet36716a72017-05-30 11:07:16 +02002229 fd_insert(mworker_pipe[0], MAX_THREADS_MASK);
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002230 fd_want_recv(mworker_pipe[0]);
2231}
Christopher Fauletdc628a32017-10-19 11:59:44 +02002232
2233static void sync_poll_loop()
2234{
2235 if (THREAD_NO_SYNC())
2236 return;
2237
2238 THREAD_ENTER_SYNC();
2239
2240 if (!THREAD_NEED_SYNC())
2241 goto exit;
2242
2243 /* *** { */
2244 /* Put here all sync functions */
2245
Christopher Faulet5d42e092017-10-16 12:00:40 +02002246 servers_update_status(); /* Commit server status changes */
Christopher Fauletdc628a32017-10-19 11:59:44 +02002247
2248 /* *** } */
2249 exit:
2250 THREAD_EXIT_SYNC();
2251}
2252
Willy Tarreau918ff602011-07-25 16:33:49 +02002253/* Runs the polling loop */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01002254static void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02002255{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02002256 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002257
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02002258 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02002259 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002260 /* Process a few tasks */
2261 process_runnable_tasks();
2262
Willy Tarreau29857942009-05-10 09:01:21 +02002263 /* check if we caught some signals and process them */
2264 signal_process_queue();
2265
Willy Tarreau58b458d2008-06-29 22:40:23 +02002266 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01002267 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002268
Willy Tarreauaf7ad002010-08-31 15:39:26 +02002269 /* stop when there's nothing left to do */
2270 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02002271 break;
2272
Willy Tarreau10146c92015-04-13 20:44:19 +02002273 /* expire immediately if events are pending */
Christopher Faulet34c5cc92016-12-06 09:15:30 +01002274 if (fd_cache_num || tasks_run_queue || signal_queue_len || applets_active_queue)
Willy Tarreau10146c92015-04-13 20:44:19 +02002275 next = now_ms;
2276
Willy Tarreau58b458d2008-06-29 22:40:23 +02002277 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02002278 cur_poller.poll(&cur_poller, next);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01002279 fd_process_cached_events();
Willy Tarreau3c595ac2015-04-19 09:59:31 +02002280 applet_run_active();
Emeric Brun64cc49c2017-10-03 14:46:45 +02002281
Christopher Fauletdc628a32017-10-19 11:59:44 +02002282
2283 /* Synchronize all polling loops */
2284 sync_poll_loop();
2285
Willy Tarreau4f60f162007-04-08 16:39:58 +02002286 }
2287}
2288
Christopher Faulet1d17c102017-08-29 15:38:48 +02002289static void *run_thread_poll_loop(void *data)
2290{
2291 struct per_thread_init_fct *ptif;
2292 struct per_thread_deinit_fct *ptdf;
2293
2294 tid = *((unsigned int *)data);
2295 tid_bit = (1UL << tid);
2296 tv_update_date(-1,-1);
2297
2298 list_for_each_entry(ptif, &per_thread_init_list, list) {
2299 if (!ptif->fct()) {
2300 Alert("failed to initialize thread %u.\n", tid);
2301 exit(1);
2302 }
2303 }
2304
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002305 if (global.mode & MODE_MWORKER)
2306 mworker_pipe_register(mworker_pipe);
2307
2308 protocol_enable_all();
Christopher Fauletdc628a32017-10-19 11:59:44 +02002309 THREAD_SYNC_ENABLE();
Christopher Faulet1d17c102017-08-29 15:38:48 +02002310 run_poll_loop();
2311
2312 list_for_each_entry(ptdf, &per_thread_deinit_list, list)
2313 ptdf->fct();
2314
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002315#ifdef USE_THREAD
2316 if (tid > 0)
2317 pthread_exit(NULL);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002318#endif
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002319 return NULL;
2320}
Christopher Faulet1d17c102017-08-29 15:38:48 +02002321
Willy Tarreaue9b26022011-08-01 20:57:55 +02002322/* This is the global management task for listeners. It enables listeners waiting
2323 * for global resources when there are enough free resource, or at least once in
2324 * a while. It is designed to be called as a task.
2325 */
2326static struct task *manage_global_listener_queue(struct task *t)
2327{
2328 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02002329 /* queue is empty, nothing to do */
2330 if (LIST_ISEMPTY(&global_listener_queue))
2331 goto out;
2332
2333 /* If there are still too many concurrent connections, let's wait for
2334 * some of them to go away. We don't need to re-arm the timer because
2335 * each of them will scan the queue anyway.
2336 */
2337 if (unlikely(actconn >= global.maxconn))
2338 goto out;
2339
2340 /* We should periodically try to enable listeners waiting for a global
2341 * resource here, because it is possible, though very unlikely, that
2342 * they have been blocked by a temporary lack of global resource such
2343 * as a file descriptor or memory and that the temporary condition has
2344 * disappeared.
2345 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02002346 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02002347
2348 out:
2349 t->expire = next;
2350 task_queue(t);
2351 return t;
2352}
Willy Tarreau4f60f162007-04-08 16:39:58 +02002353
Willy Tarreaubaaee002006-06-26 02:48:02 +02002354int main(int argc, char **argv)
2355{
2356 int err, retry;
2357 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02002358 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02002359 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002360
Emeric Bruncf20bf12010-10-22 16:06:11 +02002361 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002362 signal_register_fct(SIGQUIT, dump, SIGQUIT);
2363 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
2364 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
William Lallemand73b85e72017-06-01 17:38:51 +02002365 signal_register_fct(SIGUSR2, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002366
Willy Tarreaue437c442010-03-17 18:02:46 +01002367 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
2368 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
2369 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02002370 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002371 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002372
Willy Tarreaudc23a922011-02-16 11:10:36 +01002373 /* ulimits */
2374 if (!global.rlimit_nofile)
2375 global.rlimit_nofile = global.maxsock;
2376
2377 if (global.rlimit_nofile) {
2378 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
2379 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02002380 /* try to set it to the max possible at least */
2381 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02002382 limit.rlim_cur = limit.rlim_max;
2383 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
2384 getrlimit(RLIMIT_NOFILE, &limit);
2385
Willy Tarreauef635472016-06-21 11:48:18 +02002386 Warning("[%s.main()] Cannot raise FD limit to %d, limit is %d.\n", argv[0], global.rlimit_nofile, (int)limit.rlim_cur);
2387 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002388 }
2389 }
2390
2391 if (global.rlimit_memmax) {
2392 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01002393 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01002394#ifdef RLIMIT_AS
2395 if (setrlimit(RLIMIT_AS, &limit) == -1) {
2396 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2397 argv[0], global.rlimit_memmax);
2398 }
2399#else
2400 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
2401 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
2402 argv[0], global.rlimit_memmax);
2403 }
2404#endif
2405 }
2406
Olivier Houchardf73629d2017-04-05 22:33:04 +02002407 if (old_unixsocket) {
William Lallemand85b0bd92017-06-01 17:38:53 +02002408 if (strcmp("/dev/null", old_unixsocket) != 0) {
2409 if (get_old_sockets(old_unixsocket) != 0) {
2410 Alert("Failed to get the sockets from the old process!\n");
2411 if (!(global.mode & MODE_MWORKER))
2412 exit(1);
2413 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002414 }
2415 }
William Lallemand85b0bd92017-06-01 17:38:53 +02002416 get_cur_unixsocket();
2417
Willy Tarreaubaaee002006-06-26 02:48:02 +02002418 /* We will loop at most 100 times with 10 ms delay each time.
2419 * That's at most 1 second. We only send a signal to old pids
2420 * if we cannot grab at least one port.
2421 */
2422 retry = MAX_START_RETRIES;
2423 err = ERR_NONE;
2424 while (retry >= 0) {
2425 struct timeval w;
2426 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01002427 /* exit the loop on no error or fatal error */
2428 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002429 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02002430 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02002431 break;
2432
2433 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
2434 * listening sockets. So on those platforms, it would be wiser to
2435 * simply send SIGUSR1, which will not be undoable.
2436 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02002437 if (tell_old_pids(SIGTTOU) == 0) {
2438 /* no need to wait if we can't contact old pids */
2439 retry = 0;
2440 continue;
2441 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002442 /* give some time to old processes to stop listening */
2443 w.tv_sec = 0;
2444 w.tv_usec = 10*1000;
2445 select(0, NULL, NULL, NULL, &w);
2446 retry--;
2447 }
2448
2449 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01002450 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02002451 if (retry != MAX_START_RETRIES && nb_oldpids) {
2452 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002453 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02002454 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002455 exit(1);
2456 }
2457
2458 if (listeners == 0) {
Willy Tarreauf2ee0162015-08-09 11:01:51 +02002459 Alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002460 /* Note: we don't have to send anything to the old pids because we
2461 * never stopped them. */
2462 exit(1);
2463 }
2464
Emeric Bruncf20bf12010-10-22 16:06:11 +02002465 err = protocol_bind_all(errmsg, sizeof(errmsg));
2466 if ((err & ~ERR_WARN) != ERR_NONE) {
2467 if ((err & ERR_ALERT) || (err & ERR_WARN))
2468 Alert("[%s.main()] %s.\n", argv[0], errmsg);
2469
Willy Tarreaudd815982007-10-16 12:25:14 +02002470 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
2471 protocol_unbind_all(); /* cleanup everything we can */
2472 if (nb_oldpids)
2473 tell_old_pids(SIGTTIN);
2474 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02002475 } else if (err & ERR_WARN) {
2476 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02002477 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02002478 /* Ok, all listener should now be bound, close any leftover sockets
2479 * the previous process gave us, we don't need them anymore
2480 */
2481 while (xfer_sock_list != NULL) {
2482 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
2483 close(xfer_sock_list->fd);
2484 free(xfer_sock_list->iface);
2485 free(xfer_sock_list->namespace);
2486 free(xfer_sock_list);
2487 xfer_sock_list = tmpxfer;
2488 }
Willy Tarreaudd815982007-10-16 12:25:14 +02002489
Willy Tarreaubaaee002006-06-26 02:48:02 +02002490 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002491 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
2492 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002493
Willy Tarreaubaaee002006-06-26 02:48:02 +02002494 /* MODE_QUIET can inhibit alerts and warnings below this line */
2495
Willy Tarreaubaaee002006-06-26 02:48:02 +02002496 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
2497 /* detach from the tty */
2498 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002499 }
2500
2501 /* open log & pid files before the chroot */
William Lallemand095ba4c2017-06-01 17:38:50 +02002502 if (global.mode & MODE_DAEMON && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002503 unlink(global.pidfile);
2504 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
2505 if (pidfd < 0) {
2506 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
2507 if (nb_oldpids)
2508 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02002509 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002510 exit(1);
2511 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002512 }
2513
Willy Tarreaub38651a2007-03-24 17:24:39 +01002514 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
2515 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002516 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002517 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01002518 exit(1);
2519 }
2520
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002521 /* If the user is not root, we'll still let him try the configuration
2522 * but we inform him that unexpected behaviour may occur.
2523 */
2524 if ((global.last_checks & LSTCHK_NETADM) && getuid())
2525 Warning("[%s.main()] Some options which require full privileges"
2526 " might not work well.\n"
2527 "", argv[0]);
2528
William Lallemand095ba4c2017-06-01 17:38:50 +02002529 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2530
2531 /* chroot if needed */
2532 if (global.chroot != NULL) {
2533 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
2534 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
2535 if (nb_oldpids)
2536 tell_old_pids(SIGTTIN);
2537 protocol_unbind_all();
2538 exit(1);
2539 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002540 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002541 }
2542
Willy Tarreaubaaee002006-06-26 02:48:02 +02002543 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02002544 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002545
William Lallemand8a361b52017-06-20 11:20:33 +02002546 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
2547 nb_oldpids = 0;
2548 free(oldpids);
2549 oldpids = NULL;
2550 }
2551
2552
Willy Tarreaubaaee002006-06-26 02:48:02 +02002553 /* Note that any error at this stage will be fatal because we will not
2554 * be able to restart the old pids.
2555 */
2556
William Lallemand095ba4c2017-06-01 17:38:50 +02002557 if ((global.mode & (MODE_MWORKER|MODE_DAEMON)) == 0) {
2558 /* setgid / setuid */
2559 if (global.gid) {
2560 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
2561 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2562 " without 'uid'/'user' is generally useless.\n", argv[0]);
2563
2564 if (setgid(global.gid) == -1) {
2565 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
2566 protocol_unbind_all();
2567 exit(1);
2568 }
2569 }
Michael Schererab012dd2013-01-12 18:35:19 +01002570
William Lallemand095ba4c2017-06-01 17:38:50 +02002571 if (global.uid && setuid(global.uid) == -1) {
2572 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Michael Schererab012dd2013-01-12 18:35:19 +01002573 protocol_unbind_all();
2574 exit(1);
2575 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002576 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002577 /* check ulimits */
2578 limit.rlim_cur = limit.rlim_max = 0;
2579 getrlimit(RLIMIT_NOFILE, &limit);
2580 if (limit.rlim_cur < global.maxsock) {
2581 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",
Willy Tarreau1772ece2009-04-03 14:49:12 +02002582 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002583 }
2584
William Lallemand095ba4c2017-06-01 17:38:50 +02002585 if (global.mode & (MODE_DAEMON | MODE_MWORKER)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002586 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002587 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002588 int ret = 0;
2589 int proc;
2590
William Lallemand73b85e72017-06-01 17:38:51 +02002591 children = calloc(global.nbproc, sizeof(int));
William Lallemand095ba4c2017-06-01 17:38:50 +02002592 /*
2593 * if daemon + mworker: must fork here to let a master
2594 * process live in background before forking children
2595 */
William Lallemand73b85e72017-06-01 17:38:51 +02002596
2597 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)
2598 && (global.mode & MODE_MWORKER)
2599 && (global.mode & MODE_DAEMON)) {
William Lallemand095ba4c2017-06-01 17:38:50 +02002600 ret = fork();
2601 if (ret < 0) {
2602 Alert("[%s.main()] Cannot fork.\n", argv[0]);
2603 protocol_unbind_all();
2604 exit(1); /* there has been an error */
2605 }
2606 /* parent leave to daemonize */
2607 if (ret > 0)
2608 exit(0);
2609 }
William Lallemande20b6a62017-06-01 17:38:55 +02002610
2611 if (global.mode & MODE_MWORKER) {
2612 if ((getenv("HAPROXY_MWORKER_REEXEC") == NULL)) {
2613 char *msg = NULL;
2614 /* master pipe to ensure the master is still alive */
2615 ret = pipe(mworker_pipe);
2616 if (ret < 0) {
2617 Warning("[%s.main()] Cannot create master pipe.\n", argv[0]);
2618 } else {
2619 memprintf(&msg, "%d", mworker_pipe[0]);
2620 setenv("HAPROXY_MWORKER_PIPE_RD", msg, 1);
2621 memprintf(&msg, "%d", mworker_pipe[1]);
2622 setenv("HAPROXY_MWORKER_PIPE_WR", msg, 1);
2623 free(msg);
2624 }
2625 } else {
2626 mworker_pipe[0] = atol(getenv("HAPROXY_MWORKER_PIPE_RD"));
2627 mworker_pipe[1] = atol(getenv("HAPROXY_MWORKER_PIPE_WR"));
2628 if (mworker_pipe[0] <= 0 || mworker_pipe[1] <= 0) {
2629 Warning("[%s.main()] Cannot get master pipe FDs.\n", argv[0]);
2630 }
2631 }
2632 }
2633
Willy Tarreaubaaee002006-06-26 02:48:02 +02002634 /* the father launches the required number of processes */
2635 for (proc = 0; proc < global.nbproc; proc++) {
2636 ret = fork();
2637 if (ret < 0) {
2638 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002639 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02002640 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002641 }
2642 else if (ret == 0) /* child breaks here */
2643 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01002644 children[proc] = ret;
Willy Tarreau269ab312012-09-05 08:02:48 +02002645 if (pidfd >= 0) {
2646 char pidstr[100];
2647 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002648 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02002649 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01002650 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002651 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002652
2653#ifdef USE_CPU_AFFINITY
2654 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02002655 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002656 global.cpu_map[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002657#ifdef __FreeBSD__
Olivier Houchard97148f62017-08-16 17:29:11 +02002658 {
2659 cpuset_t cpuset;
2660 int i;
2661 unsigned long cpu_map = global.cpu_map[proc];
2662
2663 CPU_ZERO(&cpuset);
2664 while ((i = ffsl(cpu_map)) > 0) {
2665 CPU_SET(i - 1, &cpuset);
2666 cpu_map &= ~(1 << (i - 1));
2667 }
2668 ret = cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(cpuset), &cpuset);
2669 }
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002670#else
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002671 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
2672#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002673#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02002674 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02002675 if (pidfd >= 0) {
2676 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
2677 close(pidfd);
2678 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02002679
2680 /* We won't ever use this anymore */
Willy Tarreaud137dd32010-08-25 12:49:05 +02002681 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002682
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002683 if (proc == global.nbproc) {
William Lallemand095ba4c2017-06-01 17:38:50 +02002684 if (global.mode & MODE_MWORKER) {
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002685 protocol_unbind_all();
William Lallemand73b85e72017-06-01 17:38:51 +02002686 mworker_wait();
William Lallemand1499b9b2017-06-07 15:04:47 +02002687 /* should never get there */
2688 exit(EXIT_FAILURE);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002689 }
William Lallemandcf4e4962017-06-08 19:05:48 +02002690#if defined(USE_OPENSSL) && !defined(OPENSSL_NO_DH)
Grant Zhang872f9c22017-01-21 01:10:18 +00002691 ssl_free_dh();
2692#endif
William Lallemand1499b9b2017-06-07 15:04:47 +02002693 exit(0); /* parent must leave */
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002694 }
2695
William Lallemandcb11fd22017-06-01 17:38:52 +02002696 /* child must never use the atexit function */
2697 atexit_flag = 0;
2698
William Lallemand095ba4c2017-06-01 17:38:50 +02002699 /* Must chroot and setgid/setuid in the children */
2700 /* chroot if needed */
2701 if (global.chroot != NULL) {
2702 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
2703 Alert("[%s.main()] Cannot chroot1(%s).\n", argv[0], global.chroot);
2704 if (nb_oldpids)
2705 tell_old_pids(SIGTTIN);
2706 protocol_unbind_all();
2707 exit(1);
2708 }
2709 }
2710
2711 free(global.chroot);
2712 global.chroot = NULL;
2713
2714 /* setgid / setuid */
2715 if (global.gid) {
2716 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
2717 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2718 " without 'uid'/'user' is generally useless.\n", argv[0]);
2719
2720 if (setgid(global.gid) == -1) {
2721 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
2722 protocol_unbind_all();
2723 exit(1);
2724 }
2725 }
2726
2727 if (global.uid && setuid(global.uid) == -1) {
2728 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
2729 protocol_unbind_all();
2730 exit(1);
2731 }
2732
William Lallemand7f80eb22017-05-26 18:19:55 +02002733 /* pass through every cli socket, and check if it's bound to
2734 * the current process and if it exposes listeners sockets.
2735 * Caution: the GTUNE_SOCKET_TRANSFER is now set after the fork.
2736 * */
2737
2738 if (global.stats_fe) {
2739 struct bind_conf *bind_conf;
2740
2741 list_for_each_entry(bind_conf, &global.stats_fe->conf.bind, by_fe) {
2742 if (bind_conf->level & ACCESS_FD_LISTENERS) {
2743 if (!bind_conf->bind_proc || bind_conf->bind_proc & (1UL << proc)) {
2744 global.tune.options |= GTUNE_SOCKET_TRANSFER;
2745 break;
2746 }
2747 }
2748 }
2749 }
2750
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002751 /* we might have to unbind some proxies from some processes */
2752 px = proxy;
2753 while (px != NULL) {
2754 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002755 if (!(px->bind_proc & (1UL << proc))) {
2756 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
2757 zombify_proxy(px);
2758 else
2759 stop_proxy(px);
2760 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002761 }
2762 px = px->next;
2763 }
2764
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002765 /* we might have to unbind some peers sections from some processes */
Frédéric Lécailleed2b4a62017-07-13 09:07:09 +02002766 for (curpeers = cfg_peers; curpeers; curpeers = curpeers->next) {
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002767 if (!curpeers->peers_fe)
2768 continue;
2769
2770 if (curpeers->peers_fe->bind_proc & (1UL << proc))
2771 continue;
2772
2773 stop_proxy(curpeers->peers_fe);
2774 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02002775 signal_unregister_handler(curpeers->sighandler);
2776 task_delete(curpeers->sync_task);
2777 task_free(curpeers->sync_task);
2778 curpeers->sync_task = NULL;
2779 task_free(curpeers->peers_fe->task);
2780 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002781 curpeers->peers_fe = NULL;
2782 }
2783
Willy Tarreaubaaee002006-06-26 02:48:02 +02002784 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
2785 * that we can detach from the TTY. We MUST NOT do it in other cases since
2786 * it would have already be done, and 0-2 would have been affected to listening
2787 * sockets
2788 */
Willy Tarreau106cb762008-11-16 07:40:34 +01002789 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002790 /* detach from the tty */
2791 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01002792 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002793 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2794 }
2795 pid = getpid(); /* update child's pid */
2796 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02002797 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002798 }
2799
Christopher Faulete3a5e352017-10-24 13:53:54 +02002800 global.mode &= ~MODE_STARTING;
Willy Tarreau4f60f162007-04-08 16:39:58 +02002801 /*
2802 * That's it : the central polling loop. Run until we stop.
2803 */
Christopher Faulet1d17c102017-08-29 15:38:48 +02002804#ifdef USE_THREAD
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002805 {
Christopher Faulet1d17c102017-08-29 15:38:48 +02002806 unsigned int *tids = calloc(global.nbthread, sizeof(unsigned int));
2807 pthread_t *threads = calloc(global.nbthread, sizeof(pthread_t));
2808 int i;
2809
Christopher Fauletd7bddda2017-10-31 17:30:12 +01002810 THREAD_SYNC_INIT((1UL << global.nbthread) - 1);
2811
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002812 /* Init tids array */
2813 for (i = 0; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02002814 tids[i] = i;
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002815
2816 /* Create nbthread-1 thread. The first thread is the current process */
2817 threads[0] = pthread_self();
2818 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02002819 pthread_create(&threads[i], NULL, &run_thread_poll_loop, &tids[i]);
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002820
Christopher Faulet62519022017-10-16 15:49:32 +02002821#ifdef USE_CPU_AFFINITY
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002822 /* Now the CPU affinity for all threads */
2823 for (i = 0; i < global.nbthread; i++) {
Christopher Faulet62519022017-10-16 15:49:32 +02002824 if (global.cpu_map[relative_pid-1])
2825 global.thread_map[relative_pid-1][i] &= global.cpu_map[relative_pid-1];
2826
2827 if (i < LONGBITS && /* only the first 32/64 threads may be pinned */
2828 global.thread_map[relative_pid-1][i]) /* only do this if the thread has a THREAD map */
2829 pthread_setaffinity_np(threads[i],
2830 sizeof(unsigned long), (void *)&global.thread_map[relative_pid-1][i]);
Christopher Faulet1d17c102017-08-29 15:38:48 +02002831 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002832#endif /* !USE_CPU_AFFINITY */
2833
2834 /* Finally, start the poll loop for the first thread */
2835 run_thread_poll_loop(&tids[0]);
2836
2837 /* Wait the end of other threads */
2838 for (i = 1; i < global.nbthread; i++)
Christopher Faulet1d17c102017-08-29 15:38:48 +02002839 pthread_join(threads[i], NULL);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002840
Christopher Faulet1d17c102017-08-29 15:38:48 +02002841 free(tids);
2842 free(threads);
2843
Christopher Fauletb79a94c2017-05-30 15:34:30 +02002844#if defined(DEBUG_THREAD) || defined(DEBUG_FULL)
2845 show_lock_stats();
2846#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02002847 }
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002848#else /* ! USE_THREAD */
Christopher Fauletd4604ad2017-05-29 10:40:41 +02002849
Christopher Fauletcd7879a2017-10-27 13:53:47 +02002850 run_thread_poll_loop((int []){0});
Christopher Faulet62519022017-10-16 15:49:32 +02002851
Christopher Faulet62519022017-10-16 15:49:32 +02002852#endif
Christopher Faulet1d17c102017-08-29 15:38:48 +02002853
2854 /* Do some cleanup */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002855 deinit();
Christopher Faulet1d17c102017-08-29 15:38:48 +02002856
Willy Tarreaubaaee002006-06-26 02:48:02 +02002857 exit(0);
2858}
2859
2860
2861/*
2862 * Local variables:
2863 * c-indent-level: 8
2864 * c-basic-offset: 8
2865 * End:
2866 */