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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 *
10 * Please refer to RFC2068 or RFC2616 for informations about HTTP protocol, and
11 * RFC2965 for informations about cookies usage. More generally, the IETF HTTP
12 * 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>
Willy Tarreaubaaee002006-06-26 02:48:02 +020080
81#include <types/capture.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020082#include <types/filters.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020083#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090084#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020085#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020086
Willy Tarreau0fc45a72007-06-17 00:36:03 +020087#include <proto/acl.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020088#include <proto/applet.h>
Willy Tarreau2e845be2012-10-19 19:49:09 +020089#include <proto/arg.h>
Willy Tarreau3c595ac2015-04-19 09:59:31 +020090#include <proto/auth.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020091#include <proto/backend.h>
Willy Tarreauc7e42382012-08-24 19:22:53 +020092#include <proto/channel.h>
Willy Tarreauf2943dc2012-10-26 20:10:28 +020093#include <proto/connection.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020094#include <proto/fd.h>
Christopher Fauletd7c91962015-04-30 11:48:27 +020095#include <proto/filters.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +020096#include <proto/hdr_idx.h>
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +010097#include <proto/hlua.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +020098#include <proto/listener.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020099#include <proto/log.h>
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +0100100#include <proto/pattern.h>
Willy Tarreaud1d54542012-09-12 22:58:11 +0200101#include <proto/protocol.h>
Willy Tarreau80587432006-12-24 17:47:20 +0100102#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200103#include <proto/proxy.h>
104#include <proto/queue.h>
105#include <proto/server.h>
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200106#include <proto/session.h>
Willy Tarreau87b09662015-04-03 00:22:06 +0200107#include <proto/stream.h>
Willy Tarreau29857942009-05-10 09:01:21 +0200108#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200109#include <proto/task.h>
Baptiste Assmann325137d2015-04-13 23:40:55 +0200110#include <proto/dns.h>
Christopher Fauletff2613e2016-11-09 11:36:17 +0100111#include <proto/vars.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +0200112
Willy Tarreau477ecd82010-01-03 21:12:30 +0100113/* list of config files */
114static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200115int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100116int relative_pid = 1; /* process id starting at 1 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200117
118/* global options */
119struct global global = {
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100120 .hard_stop_after = TICK_ETERNITY,
Willy Tarreau247a13a2012-11-15 17:38:15 +0100121 .nbproc = 1,
William Lallemand5f232402012-04-05 18:02:55 +0200122 .req_count = 0,
William Lallemand0f99e342011-10-12 17:50:54 +0200123 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
William Lallemand9d5f5482012-11-07 16:12:57 +0100124 .maxzlibmem = 0,
William Lallemandd85f9172012-11-09 17:05:39 +0100125 .comp_rate_lim = 0,
Emeric Brun850efd52014-01-29 12:24:34 +0100126 .ssl_server_verify = SSL_SERVER_VERIFY_REQUIRED,
Emeric Bruned760922010-10-22 17:59:25 +0200127 .unix_bind = {
128 .ux = {
129 .uid = -1,
130 .gid = -1,
131 .mode = 0,
132 }
133 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200134 .tune = {
135 .bufsize = BUFSIZE,
Willy Tarreau27097842015-09-28 13:53:23 +0200136 .maxrewrite = -1,
Willy Tarreau43961d52010-10-04 20:39:20 +0200137 .chksize = BUFSIZE,
Willy Tarreaua24adf02014-11-27 01:11:56 +0100138 .reserved_bufs = RESERVED_BUFS,
Willy Tarreauf3045d22015-04-29 16:24:50 +0200139 .pattern_cache = DEFAULT_PAT_LRU_SIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200140#ifdef USE_OPENSSL
Emeric Brun46635772012-11-14 11:32:56 +0100141 .sslcachesize = SSLCACHESIZE,
Emeric Brunfc32aca2012-09-03 12:10:29 +0200142#endif
William Lallemandf3747832012-11-09 12:33:10 +0100143 .comp_maxlevel = 1,
Willy Tarreau7e312732014-02-12 16:35:14 +0100144#ifdef DEFAULT_IDLE_TIMER
145 .idle_timer = DEFAULT_IDLE_TIMER,
146#else
147 .idle_timer = 1000, /* 1 second */
148#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200149 },
Emeric Brun76d88952012-10-05 15:47:31 +0200150#ifdef USE_OPENSSL
151#ifdef DEFAULT_MAXSSLCONN
Willy Tarreau403edff2012-09-06 11:58:37 +0200152 .maxsslconn = DEFAULT_MAXSSLCONN,
153#endif
Emeric Brun76d88952012-10-05 15:47:31 +0200154#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200155 /* others NULL OK */
156};
157
158/*********************************************************************/
159
160int stopping; /* non zero means stopping in progress */
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100161int killed; /* non zero means a hard-stop is triggered */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200162int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200163
164/* Here we store informations about the pids of the processes we may pause
165 * or kill. We will send them a signal every 10 ms until we can bind to all
166 * our ports. With 200 retries, that's about 2 seconds.
167 */
168#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200169static int *oldpids = NULL;
170static int oldpids_sig; /* use USR1 or TERM */
171
Olivier Houchardf73629d2017-04-05 22:33:04 +0200172/* Path to the unix socket we use to retrieve listener sockets from the old process */
173static const char *old_unixsocket;
174
Willy Tarreaubaaee002006-06-26 02:48:02 +0200175/* this is used to drain data, and as a temporary buffer for sprintf()... */
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100176struct chunk trash = { };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200177
Willy Tarreau8096de92010-02-26 11:12:27 +0100178/* this buffer is always the same size as standard buffers and is used for
179 * swapping data inside a buffer.
180 */
181char *swap_buffer = NULL;
182
Willy Tarreaubb545b42010-08-25 12:58:59 +0200183int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200184const int zero = 0;
185const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200186const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200187
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100188char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200189char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200190
Willy Tarreau89efaed2013-12-13 15:14:55 +0100191/* used from everywhere just to drain results we don't want to read and which
192 * recent versions of gcc increasingly and annoyingly complain about.
193 */
194int shut_your_big_mouth_gcc_int = 0;
195
Willy Tarreau08ceb102011-07-24 22:58:00 +0200196/* list of the temporarily limited listeners because of lack of resource */
197struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200198struct task *global_listener_queue_task;
199static struct task *manage_global_listener_queue(struct task *t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200200
Willy Tarreauff055502014-04-28 22:27:06 +0200201/* bitfield of a few warnings to emit just once (WARN_*) */
202unsigned int warned = 0;
203
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100204
205/* These are strings to be reported in the output of "haproxy -vv". They may
206 * either be constants (in which case must_free must be zero) or dynamically
207 * allocated strings to pass to free() on exit, and in this case must_free
208 * must be non-zero.
209 */
210struct list build_opts_list = LIST_HEAD_INIT(build_opts_list);
211struct build_opts_str {
212 struct list list;
213 const char *str;
214 int must_free;
215};
216
Willy Tarreaue6945732016-12-21 19:57:00 +0100217/* These functions are called just after the point where the program exits
218 * after a config validity check, so they are generally suited for resource
219 * allocation and slow initializations that should be skipped during basic
220 * config checks. The functions must return 0 on success, or a combination
221 * of ERR_* flags (ERR_WARN, ERR_ABORT, ERR_FATAL, ...). The 2 latter cause
222 * and immediate exit, so the function must have emitted any useful error.
223 */
224struct list post_check_list = LIST_HEAD_INIT(post_check_list);
225struct post_check_fct {
226 struct list list;
227 int (*fct)();
228};
229
Willy Tarreau05554e62016-12-21 20:46:26 +0100230/* These functions are called when freeing the global sections at the end
231 * of deinit, after everything is stopped. They don't return anything, and
232 * they work in best effort mode as their sole goal is to make valgrind
233 * mostly happy.
234 */
235struct list post_deinit_list = LIST_HEAD_INIT(post_deinit_list);
236struct post_deinit_fct {
237 struct list list;
238 void (*fct)();
239};
240
Willy Tarreaubaaee002006-06-26 02:48:02 +0200241/*********************************************************************/
242/* general purpose functions ***************************************/
243/*********************************************************************/
244
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100245/* used to register some build option strings at boot. Set must_free to
246 * non-zero if the string must be freed upon exit.
247 */
248void hap_register_build_opts(const char *str, int must_free)
249{
250 struct build_opts_str *b;
251
252 b = calloc(1, sizeof(*b));
253 if (!b) {
254 fprintf(stderr, "out of memory\n");
255 exit(1);
256 }
257 b->str = str;
258 b->must_free = must_free;
259 LIST_ADDQ(&build_opts_list, &b->list);
260}
261
Willy Tarreaue6945732016-12-21 19:57:00 +0100262/* used to register some initialization functions to call after the checks. */
263void hap_register_post_check(int (*fct)())
264{
265 struct post_check_fct *b;
266
267 b = calloc(1, sizeof(*b));
268 if (!b) {
269 fprintf(stderr, "out of memory\n");
270 exit(1);
271 }
272 b->fct = fct;
273 LIST_ADDQ(&post_check_list, &b->list);
274}
275
Willy Tarreau05554e62016-12-21 20:46:26 +0100276/* used to register some de-initialization functions to call after everything
277 * has stopped.
278 */
279void hap_register_post_deinit(void (*fct)())
280{
281 struct post_deinit_fct *b;
282
283 b = calloc(1, sizeof(*b));
284 if (!b) {
285 fprintf(stderr, "out of memory\n");
286 exit(1);
287 }
288 b->fct = fct;
289 LIST_ADDQ(&post_deinit_list, &b->list);
290}
291
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100292static void display_version()
Willy Tarreaubaaee002006-06-26 02:48:02 +0200293{
294 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreau7b677262017-04-03 09:27:49 +0200295 printf("Copyright 2000-2017 Willy Tarreau <willy@haproxy.org>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200296}
297
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100298static void display_build_opts()
Willy Tarreau7b066db2007-12-02 11:28:59 +0100299{
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100300 struct build_opts_str *item;
301
Willy Tarreau7b066db2007-12-02 11:28:59 +0100302 printf("Build options :"
303#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100304 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100305#endif
306#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100307 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100308#endif
309#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100310 "\n CC = " BUILD_CC
311#endif
312#ifdef BUILD_CFLAGS
313 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100314#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100315#ifdef BUILD_OPTIONS
316 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100317#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200318 "\n\nDefault settings :"
319 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
320 "\n\n",
321 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200322
Willy Tarreaucdb737e2016-12-21 18:43:10 +0100323 list_for_each_entry(item, &build_opts_list, list) {
324 puts(item->str);
325 }
326
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100327 putchar('\n');
328
Willy Tarreaube5b6852009-10-03 18:57:08 +0200329 list_pollers(stdout);
330 putchar('\n');
Christopher Fauletb3f4e142016-03-07 12:46:38 +0100331 list_filters(stdout);
332 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100333}
334
Willy Tarreaubaaee002006-06-26 02:48:02 +0200335/*
336 * This function prints the command line usage and exits
337 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100338static void usage(char *name)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200339{
340 display_version();
341 fprintf(stderr,
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200342 "Usage : %s [-f <cfgfile|cfgdir>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200343 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreaua088d312015-10-08 11:58:48 +0200344 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ] [-- <cfgfile>*]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100345 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200346 " -d enters debug mode ; -db only disables background mode.\n"
Willy Tarreau6e064432012-05-08 15:40:42 +0200347 " -dM[<byte>] poisons memory with <byte> (defaults to 0x50)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200348 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200349 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200350 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200351 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200352 " -n sets the maximum total # of connections (%d)\n"
353 " -m limits the usable amount of memory (in MB)\n"
354 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200355 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200356 " -p writes pids of all children to this file\n"
357#if defined(ENABLE_EPOLL)
358 " -de disables epoll() usage even when available\n"
359#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200360#if defined(ENABLE_KQUEUE)
361 " -dk disables kqueue() usage even when available\n"
362#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200363#if defined(ENABLE_POLL)
364 " -dp disables poll() usage even when available\n"
365#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200366#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100367 " -dS disables splice usage (broken on old kernels)\n"
368#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200369#if defined(USE_GETADDRINFO)
370 " -dG disables getaddrinfo() usage\n"
371#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000372#if defined(SO_REUSEPORT)
373 " -dR disables SO_REUSEPORT usage\n"
374#endif
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100375 " -dr ignores server address resolution failures\n"
Emeric Brun850efd52014-01-29 12:24:34 +0100376 " -dV disables SSL verify on servers side\n"
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200377 " -sf/-st [pid ]* finishes/terminates old pids.\n"
Olivier Houchardf73629d2017-04-05 22:33:04 +0200378 " -x <unix_socket> get listening sockets from a unix socket\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200379 "\n",
380 name, DEFAULT_MAXCONN, cfg_maxpconn);
381 exit(1);
382}
383
384
385
386/*********************************************************************/
387/* more specific functions ***************************************/
388/*********************************************************************/
389
390/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200391 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
392 * a signal zero to all subscribers. This means that it's as easy as
393 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200394 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100395static void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200396{
397 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200398 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200399 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200400}
401
402/*
403 * upon SIGTTOU, we pause everything
404 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100405static void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200406{
407 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200408 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200409}
410
411/*
412 * upon SIGTTIN, let's have a soft stop.
413 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100414static void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200415{
Willy Tarreaube58c382011-07-24 18:28:10 +0200416 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200417}
418
419/*
420 * this function dumps every server's state when the process receives SIGHUP.
421 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100422static void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200423{
424 struct proxy *p = proxy;
425
426 Warning("SIGHUP received, dumping servers states.\n");
427 while (p) {
428 struct server *s = p->srv;
429
430 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
431 while (s) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100432 chunk_printf(&trash,
433 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
434 p->id, s->id,
Willy Tarreau892337c2014-05-13 23:41:20 +0200435 (s->state != SRV_ST_STOPPED) ? "UP" : "DOWN",
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100436 s->cur_sess, s->nbpend, s->counters.cum_sess);
437 Warning("%s\n", trash.str);
438 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200439 s = s->next;
440 }
441
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200442 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
443 if (!p->srv) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100444 chunk_printf(&trash,
445 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
446 p->id,
447 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 +0200448 } else if (p->srv_act == 0) {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100449 chunk_printf(&trash,
450 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
451 p->id,
452 (p->srv_bck) ? "is running on backup servers" : "has no server available",
453 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 +0200454 } else {
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100455 chunk_printf(&trash,
456 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
457 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
458 p->id, p->srv_act, p->srv_bck,
459 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 +0200460 }
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100461 Warning("%s\n", trash.str);
462 send_log(p, LOG_NOTICE, "%s\n", trash.str);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200463
464 p = p->next;
465 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200466}
467
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100468static void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200469{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200470 /* dump memory usage then free everything possible */
471 dump_pools();
472 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200473}
474
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200475/* This function check if cfg_cfgfiles containes directories.
476 * If it find one, it add all the files (and only files) it containes
477 * in cfg_cfgfiles in place of the directory (and remove the directory).
478 * It add the files in lexical order.
479 * It add only files with .cfg extension.
480 * It doesn't add files with name starting with '.'
481 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100482static void cfgfiles_expand_directories(void)
Maxime de Roucy379d9c72016-05-13 23:52:56 +0200483{
484 struct wordlist *wl, *wlb;
485 char *err = NULL;
486
487 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
488 struct stat file_stat;
489 struct dirent **dir_entries = NULL;
490 int dir_entries_nb;
491 int dir_entries_it;
492
493 if (stat(wl->s, &file_stat)) {
494 Alert("Cannot open configuration file/directory %s : %s\n",
495 wl->s,
496 strerror(errno));
497 exit(1);
498 }
499
500 if (!S_ISDIR(file_stat.st_mode))
501 continue;
502
503 /* from this point wl->s is a directory */
504
505 dir_entries_nb = scandir(wl->s, &dir_entries, NULL, alphasort);
506 if (dir_entries_nb < 0) {
507 Alert("Cannot open configuration directory %s : %s\n",
508 wl->s,
509 strerror(errno));
510 exit(1);
511 }
512
513 /* for each element in the directory wl->s */
514 for (dir_entries_it = 0; dir_entries_it < dir_entries_nb; dir_entries_it++) {
515 struct dirent *dir_entry = dir_entries[dir_entries_it];
516 char *filename = NULL;
517 char *d_name_cfgext = strstr(dir_entry->d_name, ".cfg");
518
519 /* don't add filename that begin with .
520 * only add filename with .cfg extention
521 */
522 if (dir_entry->d_name[0] == '.' ||
523 !(d_name_cfgext && d_name_cfgext[4] == '\0'))
524 goto next_dir_entry;
525
526 if (!memprintf(&filename, "%s/%s", wl->s, dir_entry->d_name)) {
527 Alert("Cannot load configuration files %s : out of memory.\n",
528 filename);
529 exit(1);
530 }
531
532 if (stat(filename, &file_stat)) {
533 Alert("Cannot open configuration file %s : %s\n",
534 wl->s,
535 strerror(errno));
536 exit(1);
537 }
538
539 /* don't add anything else than regular file in cfg_cfgfiles
540 * this way we avoid loops
541 */
542 if (!S_ISREG(file_stat.st_mode))
543 goto next_dir_entry;
544
545 if (!list_append_word(&wl->list, filename, &err)) {
546 Alert("Cannot load configuration files %s : %s\n",
547 filename,
548 err);
549 exit(1);
550 }
551
552next_dir_entry:
553 free(filename);
554 free(dir_entry);
555 }
556
557 free(dir_entries);
558
559 /* remove the current directory (wl) from cfg_cfgfiles */
560 free(wl->s);
561 LIST_DEL(&wl->list);
562 free(wl);
563 }
564
565 free(err);
566}
567
Olivier Houchardf73629d2017-04-05 22:33:04 +0200568static int get_old_sockets(const char *unixsocket)
569{
570 char *cmsgbuf = NULL, *tmpbuf = NULL;
571 int *tmpfd = NULL;
572 struct sockaddr_un addr;
573 struct cmsghdr *cmsg;
574 struct msghdr msghdr;
575 struct iovec iov;
576 struct xfer_sock_list *xfer_sock = NULL;
Olivier Houchard54740872017-04-06 14:45:14 +0200577 struct timeval tv = { .tv_sec = 1, .tv_usec = 0 };
Olivier Houchardf73629d2017-04-05 22:33:04 +0200578 int sock = -1;
579 int ret = -1;
580 int ret2 = -1;
581 int fd_nb;
582 int got_fd = 0;
583 int i = 0;
584 size_t maxoff = 0, curoff = 0;
585
586 memset(&msghdr, 0, sizeof(msghdr));
587 cmsgbuf = malloc(CMSG_SPACE(sizeof(int)) * MAX_SEND_FD);
588 if (!cmsgbuf) {
589 Warning("Failed to allocate memory to send sockets\n");
590 goto out;
591 }
592 sock = socket(PF_UNIX, SOCK_STREAM, 0);
593 if (sock < 0) {
594 Warning("Failed to connect to the old process socket '%s'\n",
595 unixsocket);
596 goto out;
597 }
598 strncpy(addr.sun_path, unixsocket, sizeof(addr.sun_path));
599 addr.sun_path[sizeof(addr.sun_path) - 1] = 0;
600 addr.sun_family = PF_UNIX;
601 ret = connect(sock, (struct sockaddr *)&addr, sizeof(addr));
602 if (ret < 0) {
603 Warning("Failed to connect to the old process socket '%s'\n",
604 unixsocket);
605 goto out;
606 }
Olivier Houchard54740872017-04-06 14:45:14 +0200607 setsockopt(sock, SOL_SOCKET, SO_RCVTIMEO, (void *)&tv, sizeof(tv));
Olivier Houchardf73629d2017-04-05 22:33:04 +0200608 iov.iov_base = &fd_nb;
609 iov.iov_len = sizeof(fd_nb);
610 msghdr.msg_iov = &iov;
611 msghdr.msg_iovlen = 1;
612 send(sock, "_getsocks\n", strlen("_getsocks\n"), 0);
613 /* First, get the number of file descriptors to be received */
614 if (recvmsg(sock, &msghdr, MSG_WAITALL) != sizeof(fd_nb)) {
615 Warning("Failed to get the number of sockets to be transferred !\n");
616 goto out;
617 }
618 if (fd_nb == 0) {
619 ret = 0;
620 goto out;
621 }
622 tmpbuf = malloc(fd_nb * (1 + NAME_MAX + 1 + IFNAMSIZ + sizeof(int)));
623 if (tmpbuf == NULL) {
624 Warning("Failed to allocate memory while receiving sockets\n");
625 goto out;
626 }
627 tmpfd = malloc(fd_nb * sizeof(int));
628 if (tmpfd == NULL) {
629 Warning("Failed to allocate memory while receiving sockets\n");
630 goto out;
631 }
632 msghdr.msg_control = cmsgbuf;
633 msghdr.msg_controllen = CMSG_SPACE(sizeof(int)) * MAX_SEND_FD;
634 iov.iov_len = MAX_SEND_FD * (1 + NAME_MAX + 1 + IFNAMSIZ + sizeof(int));
635 do {
636 int ret3;
637
638 iov.iov_base = tmpbuf + curoff;
639 ret = recvmsg(sock, &msghdr, 0);
640 if (ret == -1 && errno == EINTR)
641 continue;
642 if (ret <= 0)
643 break;
644 /* Send an ack to let the sender know we got the sockets
645 * and it can send some more
646 */
647 do {
648 ret3 = send(sock, &got_fd, sizeof(got_fd), 0);
649 } while (ret3 == -1 && errno == EINTR);
650 for (cmsg = CMSG_FIRSTHDR(&msghdr); cmsg != NULL;
651 cmsg = CMSG_NXTHDR(&msghdr, cmsg)) {
652 if (cmsg->cmsg_level == SOL_SOCKET &&
653 cmsg->cmsg_type == SCM_RIGHTS) {
654 size_t totlen = cmsg->cmsg_len -
655 CMSG_LEN(0);
656 if (totlen / sizeof(int) + got_fd > fd_nb) {
657 Warning("Got to many sockets !\n");
658 goto out;
659 }
660 /*
661 * Be paranoid and use memcpy() to avoid any
662 * potential alignement issue.
663 */
664 memcpy(&tmpfd[got_fd], CMSG_DATA(cmsg), totlen);
665 got_fd += totlen / sizeof(int);
666 }
667 }
668 curoff += ret;
669 } while (got_fd < fd_nb);
670
671 if (got_fd != fd_nb) {
672 Warning("We didn't get the expected number of sockets (expecting %d got %d)\n",
673 fd_nb, got_fd);
674 goto out;
675 }
676 maxoff = curoff;
677 curoff = 0;
678 for (i = 0; i < got_fd; i++) {
679 int fd = tmpfd[i];
680 socklen_t socklen;
681 int len;
682
683 xfer_sock = calloc(1, sizeof(*xfer_sock));
684 if (!xfer_sock) {
685 Warning("Failed to allocate memory in get_old_sockets() !\n");
686 break;
687 }
688 xfer_sock->fd = -1;
689
690 socklen = sizeof(xfer_sock->addr);
691 if (getsockname(fd, (struct sockaddr *)&xfer_sock->addr, &socklen) != 0) {
692 Warning("Failed to get socket address\n");
693 free(xfer_sock);
694 continue;
695 }
696 if (curoff >= maxoff) {
697 Warning("Inconsistency while transferring sockets\n");
698 goto out;
699 }
700 len = tmpbuf[curoff++];
701 if (len > 0) {
702 /* We have a namespace */
703 if (curoff + len > maxoff) {
704 Warning("Inconsistency while transferring sockets\n");
705 goto out;
706 }
707 xfer_sock->namespace = malloc(len + 1);
708 if (!xfer_sock->namespace) {
709 Warning("Failed to allocate memory while transferring sockets\n");
710 goto out;
711 }
712 memcpy(xfer_sock->namespace, &tmpbuf[curoff], len);
713 xfer_sock->namespace[len] = 0;
714 curoff += len;
715 }
716 if (curoff >= maxoff) {
717 Warning("Inconsistency while transferring sockets\n");
718 goto out;
719 }
720 len = tmpbuf[curoff++];
721 if (len > 0) {
722 /* We have an interface */
723 if (curoff + len > maxoff) {
724 Warning("Inconsistency while transferring sockets\n");
725 goto out;
726 }
727 xfer_sock->iface = malloc(len + 1);
728 if (!xfer_sock->iface) {
729 Warning("Failed to allocate memory while transferring sockets\n");
730 goto out;
731 }
732 memcpy(xfer_sock->iface, &tmpbuf[curoff], len);
733 xfer_sock->namespace[len] = 0;
734 curoff += len;
735 }
736 if (curoff + sizeof(int) > maxoff) {
737 Warning("Inconsistency while transferring sockets\n");
738 goto out;
739 }
740 memcpy(&xfer_sock->options, &tmpbuf[curoff],
741 sizeof(xfer_sock->options));
742 curoff += sizeof(xfer_sock->options);
743
744 xfer_sock->fd = fd;
745 if (xfer_sock_list)
746 xfer_sock_list->prev = xfer_sock;
747 xfer_sock->next = xfer_sock_list;
748 xfer_sock->prev = NULL;
749 xfer_sock_list = xfer_sock;
750 xfer_sock = NULL;
751 }
752
753 ret2 = 0;
754out:
755 /* If we failed midway make sure to close the remaining
756 * file descriptors
757 */
758 if (tmpfd != NULL && i < got_fd) {
759 for (; i < got_fd; i++) {
760 close(tmpfd[i]);
761 }
762 }
763 free(tmpbuf);
764 free(tmpfd);
765 free(cmsgbuf);
766 if (sock != -1)
767 close(sock);
768 if (xfer_sock) {
769 free(xfer_sock->namespace);
770 free(xfer_sock->iface);
771 if (xfer_sock->fd != -1)
772 close(xfer_sock->fd);
773 free(xfer_sock);
774 }
775 return (ret2);
776}
777
Willy Tarreaubaaee002006-06-26 02:48:02 +0200778/*
779 * This function initializes all the necessary variables. It only returns
780 * if everything is OK. If something fails, it exits.
781 */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +0100782static void init(int argc, char **argv)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200783{
Willy Tarreaubaaee002006-06-26 02:48:02 +0200784 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200785 char *tmp;
786 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200787 int err_code = 0;
Maxime de Roucy0f503922016-05-13 23:52:55 +0200788 char *err_msg = NULL;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100789 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000790 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200791 char *change_dir = NULL;
Christopher Fauletd7c91962015-04-30 11:48:27 +0200792 struct proxy *px;
Willy Tarreaue6945732016-12-21 19:57:00 +0100793 struct post_check_fct *pcf;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200794
Willy Tarreau19d14ef2012-10-29 16:51:55 +0100795 chunk_init(&trash, malloc(global.tune.bufsize), global.tune.bufsize);
Willy Tarreau2819e992013-12-13 14:41:10 +0100796 alloc_trash_buffers(global.tune.bufsize);
David du Colombier7af46052012-05-16 14:16:48 +0200797
Emeric Brun2b920a12010-09-23 18:30:22 +0200798 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
799 * the string in case of truncation, and at least FreeBSD appears not to do
800 * it.
801 */
802 memset(hostname, 0, sizeof(hostname));
803 gethostname(hostname, sizeof(hostname) - 1);
804 memset(localpeer, 0, sizeof(localpeer));
805 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
806
Willy Tarreaubaaee002006-06-26 02:48:02 +0200807 /*
808 * Initialize the previously static variables.
809 */
810
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100811 totalconn = actconn = maxfd = listeners = stopping = 0;
Cyril Bonté203ec5a2017-03-23 22:44:13 +0100812 killed = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200813
814
815#ifdef HAPROXY_MEMMAX
Willy Tarreau70060452015-12-14 12:46:07 +0100816 global.rlimit_memmax_all = HAPROXY_MEMMAX;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200817#endif
818
Benoit GARNIERb413c2a2016-03-27 11:08:03 +0200819 tzset();
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200820 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200821 start_date = now;
822
Willy Tarreau84310e22014-02-14 11:59:04 +0100823 srandom(now_ms - getpid());
824
Dragan Dosen835b9212016-02-12 13:23:03 +0100825 init_log();
Willy Tarreau29857942009-05-10 09:01:21 +0200826 signal_init();
Willy Tarreau8ed669b2013-01-11 15:49:37 +0100827 if (init_acl() != 0)
828 exit(1);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200829 init_task();
Willy Tarreau87b09662015-04-03 00:22:06 +0200830 init_stream();
Willy Tarreaub1ec8c42015-04-03 13:53:24 +0200831 init_session();
Willy Tarreauf2943dc2012-10-26 20:10:28 +0200832 init_connection();
Willy Tarreau8280d642009-09-23 23:37:52 +0200833 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200834 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100835 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200836
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100837 /* Initialise lua. */
838 hlua_init();
Thierry FOURNIER6f1fd482015-01-23 14:06:13 +0100839
Christopher Fauletff2613e2016-11-09 11:36:17 +0100840 /* Initialize process vars */
841 vars_init(&global.vars, SCOPE_PROC);
842
Willy Tarreau43b78992009-01-25 15:42:27 +0100843 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200844#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100845 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200846#endif
847#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100848 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200849#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200850#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100851 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200852#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200853#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100854 global.tune.options |= GTUNE_USE_SPLICE;
855#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200856#if defined(USE_GETADDRINFO)
857 global.tune.options |= GTUNE_USE_GAI;
858#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000859#if defined(SO_REUSEPORT)
860 global.tune.options |= GTUNE_USE_REUSEPORT;
861#endif
Olivier Houchard1fc05162017-04-06 01:05:05 +0200862 global.tune.options |= GTUNE_SOCKET_TRANSFER;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200863
864 pid = getpid();
865 progname = *argv;
866 while ((tmp = strchr(progname, '/')) != NULL)
867 progname = tmp + 1;
868
Kevinm48936af2010-12-22 16:08:21 +0000869 /* the process name is used for the logs only */
Dragan Dosen43885c72015-10-01 13:18:13 +0200870 chunk_initstr(&global.log_tag, strdup(progname));
Kevinm48936af2010-12-22 16:08:21 +0000871
Willy Tarreaubaaee002006-06-26 02:48:02 +0200872 argc--; argv++;
873 while (argc > 0) {
874 char *flag;
875
876 if (**argv == '-') {
877 flag = *argv+1;
878
879 /* 1 arg */
880 if (*flag == 'v') {
881 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100882 if (flag[1] == 'v') /* -vv */
883 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200884 exit(0);
885 }
886#if defined(ENABLE_EPOLL)
887 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100888 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200889#endif
890#if defined(ENABLE_POLL)
891 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100892 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200893#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200894#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200895 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100896 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200897#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200898#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100899 else if (*flag == 'd' && flag[1] == 'S')
900 global.tune.options &= ~GTUNE_USE_SPLICE;
901#endif
Nenad Merdanovic88afe032014-04-14 15:56:58 +0200902#if defined(USE_GETADDRINFO)
903 else if (*flag == 'd' && flag[1] == 'G')
904 global.tune.options &= ~GTUNE_USE_GAI;
905#endif
Lukas Tribusa0bcbdc2016-09-12 21:42:20 +0000906#if defined(SO_REUSEPORT)
907 else if (*flag == 'd' && flag[1] == 'R')
908 global.tune.options &= ~GTUNE_USE_REUSEPORT;
909#endif
Emeric Brun850efd52014-01-29 12:24:34 +0100910 else if (*flag == 'd' && flag[1] == 'V')
911 global.ssl_server_verify = SSL_SERVER_VERIFY_NONE;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200912 else if (*flag == 'V')
913 arg_mode |= MODE_VERBOSE;
914 else if (*flag == 'd' && flag[1] == 'b')
915 arg_mode |= MODE_FOREGROUND;
Willy Tarreau6e064432012-05-08 15:40:42 +0200916 else if (*flag == 'd' && flag[1] == 'M')
917 mem_poison_byte = flag[2] ? strtol(flag + 2, NULL, 0) : 'P';
Willy Tarreau3eed10e2016-11-07 21:03:16 +0100918 else if (*flag == 'd' && flag[1] == 'r')
919 global.tune.options |= GTUNE_RESOLVE_DONTFAIL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200920 else if (*flag == 'd')
921 arg_mode |= MODE_DEBUG;
922 else if (*flag == 'c')
923 arg_mode |= MODE_CHECK;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100924 else if (*flag == 'D') {
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200925 arg_mode |= MODE_DAEMON;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +0100926 if (flag[1] == 's') /* -Ds */
927 arg_mode |= MODE_SYSTEMD;
928 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200929 else if (*flag == 'q')
930 arg_mode |= MODE_QUIET;
Olivier Houchardf73629d2017-04-05 22:33:04 +0200931 else if (*flag == 'x') {
932 if (argv[1][0] == '-') {
933 Alert("Unix socket path expected with the -x flag\n");
934 exit(1);
935 }
936 old_unixsocket = argv[1];
937 argv++;
938 argc--;
939 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200940 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
941 /* list of pids to finish ('f') or terminate ('t') */
942
943 if (flag[1] == 'f')
944 oldpids_sig = SIGUSR1; /* finish then exit */
945 else
946 oldpids_sig = SIGTERM; /* terminate immediately */
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200947 while (argc > 1 && argv[1][0] != '-') {
948 oldpids = realloc(oldpids, (nb_oldpids + 1) * sizeof(int));
949 if (!oldpids) {
950 Alert("Cannot allocate old pid : out of memory.\n");
951 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200952 }
Willy Tarreauc6ca1aa2015-10-08 11:32:32 +0200953 argc--; argv++;
954 oldpids[nb_oldpids] = atol(*argv);
955 if (oldpids[nb_oldpids] <= 0)
956 usage(progname);
957 nb_oldpids++;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200958 }
959 }
Willy Tarreaua088d312015-10-08 11:58:48 +0200960 else if (flag[0] == '-' && flag[1] == 0) { /* "--" */
961 /* now that's a cfgfile list */
962 argv++; argc--;
963 while (argc > 0) {
Maxime de Roucy0f503922016-05-13 23:52:55 +0200964 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
965 Alert("Cannot load configuration file/directory %s : %s\n",
966 *argv,
967 err_msg);
Willy Tarreaua088d312015-10-08 11:58:48 +0200968 exit(1);
969 }
Willy Tarreaua088d312015-10-08 11:58:48 +0200970 argv++; argc--;
971 }
972 break;
973 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200974 else { /* >=2 args */
975 argv++; argc--;
976 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200977 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200978
979 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200980 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200981 case 'n' : cfg_maxconn = atol(*argv); break;
Willy Tarreau70060452015-12-14 12:46:07 +0100982 case 'm' : global.rlimit_memmax_all = atol(*argv); break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200983 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200984 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200985 case 'f' :
Maxime de Roucy0f503922016-05-13 23:52:55 +0200986 if (!list_append_word(&cfg_cfgfiles, *argv, &err_msg)) {
987 Alert("Cannot load configuration file/directory %s : %s\n",
988 *argv,
989 err_msg);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200990 exit(1);
991 }
Willy Tarreau5d01a632009-06-22 16:02:30 +0200992 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200993 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200994 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200995 }
996 }
997 }
998 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200999 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001000 argv++; argc--;
1001 }
1002
1003 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001004 (arg_mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_FOREGROUND | MODE_VERBOSE
Willy Tarreaubaaee002006-06-26 02:48:02 +02001005 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
1006
Willy Tarreau576132e2011-09-10 19:26:56 +02001007 if (change_dir && chdir(change_dir) < 0) {
1008 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
1009 exit(1);
1010 }
1011
Maxime de Roucy379d9c72016-05-13 23:52:56 +02001012 /* handle cfgfiles that are actualy directories */
1013 cfgfiles_expand_directories();
1014
1015 if (LIST_ISEMPTY(&cfg_cfgfiles))
1016 usage(progname);
1017
Willy Tarreaubaaee002006-06-26 02:48:02 +02001018 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001019
1020 init_default_instance();
1021
Willy Tarreau477ecd82010-01-03 21:12:30 +01001022 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +01001023 int ret;
1024
Willy Tarreau477ecd82010-01-03 21:12:30 +01001025 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +01001026 if (ret == -1) {
1027 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +01001028 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +01001029 exit(1);
1030 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +01001031 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +01001032 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +01001033 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +02001034 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +02001035 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001036 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +02001037
Willy Tarreaub83dc3d2017-04-19 11:24:07 +02001038 /* do not try to resolve arguments nor to spot inconsistencies when
1039 * the configuration contains fatal errors caused by files not found
1040 * or failed memory allocations.
1041 */
1042 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1043 Alert("Fatal errors found in configuration.\n");
1044 exit(1);
1045 }
1046
Thierry FOURNIERaf5a29d2014-03-11 14:29:22 +01001047 pattern_finalize_config();
1048
Willy Tarreaubb925012009-07-23 13:36:36 +02001049 err_code |= check_config_validity();
1050 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1051 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +02001052 exit(1);
1053 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001054
Willy Tarreau70060452015-12-14 12:46:07 +01001055 /* recompute the amount of per-process memory depending on nbproc and
1056 * the shared SSL cache size (allowed to exist in all processes).
1057 */
1058 if (global.rlimit_memmax_all) {
1059#if defined (USE_OPENSSL) && !defined(USE_PRIVATE_CACHE)
1060 int64_t ssl_cache_bytes = global.tune.sslcachesize * 200LL;
1061
1062 global.rlimit_memmax =
1063 ((((int64_t)global.rlimit_memmax_all * 1048576LL) -
1064 ssl_cache_bytes) / global.nbproc +
1065 ssl_cache_bytes + 1048575LL) / 1048576LL;
1066#else
1067 global.rlimit_memmax = global.rlimit_memmax_all / global.nbproc;
1068#endif
1069 }
1070
KOVACS Krisztianb3e54fe2014-11-17 15:11:45 +01001071#ifdef CONFIG_HAP_NS
1072 err_code |= netns_init();
1073 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1074 Alert("Failed to initialize namespace support.\n");
1075 exit(1);
1076 }
1077#endif
1078
Baptiste Assmann4215d7d2016-11-02 15:33:15 +01001079 /* Apply server states */
1080 apply_server_state();
1081
1082 for (px = proxy; px; px = px->next)
1083 srv_compute_all_admin_states(px);
1084
Baptiste Assmann83cbaa52016-11-02 15:34:05 +01001085 /* Apply servers' configured address */
1086 err_code |= srv_init_addr();
1087 if (err_code & (ERR_ABORT|ERR_FATAL)) {
1088 Alert("Failed to initialize server(s) addr.\n");
1089 exit(1);
1090 }
1091
Willy Tarreaubaaee002006-06-26 02:48:02 +02001092 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001093 struct peers *pr;
1094 struct proxy *px;
1095
1096 for (pr = peers; pr; pr = pr->next)
1097 if (pr->peers_fe)
1098 break;
1099
1100 for (px = proxy; px; px = px->next)
Willy Tarreau4348fad2012-09-20 16:48:07 +02001101 if (px->state == PR_STNEW && !LIST_ISEMPTY(&px->conf.listeners))
Willy Tarreau8b15ba12012-02-02 17:48:18 +01001102 break;
1103
1104 if (pr || px) {
1105 /* At least one peer or one listener has been found */
1106 qfprintf(stdout, "Configuration file is valid\n");
1107 exit(0);
1108 }
1109 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
1110 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001111 }
1112
Willy Tarreaue9b26022011-08-01 20:57:55 +02001113 global_listener_queue_task = task_new();
1114 if (!global_listener_queue_task) {
1115 Alert("Out of memory when initializing global task\n");
1116 exit(1);
1117 }
1118 /* very simple initialization, users will queue the task if needed */
1119 global_listener_queue_task->context = NULL; /* not even a context! */
1120 global_listener_queue_task->process = manage_global_listener_queue;
1121 global_listener_queue_task->expire = TICK_ETERNITY;
1122
Willy Tarreau8263d2b2012-08-28 00:06:31 +02001123 /* now we know the buffer size, we can initialize the channels and buffers */
Willy Tarreau9b28e032012-10-12 23:49:43 +02001124 init_buffer();
Willy Tarreau8280d642009-09-23 23:37:52 +02001125
Willy Tarreaue6945732016-12-21 19:57:00 +01001126 list_for_each_entry(pcf, &post_check_list, list) {
1127 err_code |= pcf->fct();
1128 if (err_code & (ERR_ABORT|ERR_FATAL))
1129 exit(1);
1130 }
1131
Willy Tarreaubaaee002006-06-26 02:48:02 +02001132 if (cfg_maxconn > 0)
1133 global.maxconn = cfg_maxconn;
1134
1135 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +02001136 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001137 global.pidfile = strdup(cfg_pidfile);
1138 }
1139
Willy Tarreaud0256482015-01-15 21:45:22 +01001140 /* Now we want to compute the maxconn and possibly maxsslconn values.
1141 * It's a bit tricky. If memmax is not set, maxconn defaults to
1142 * DEFAULT_MAXCONN and maxsslconn defaults to DEFAULT_MAXSSLCONN.
1143 *
1144 * If memmax is set, then it depends on which values are set. If
1145 * maxsslconn is set, we use memmax to determine how many cleartext
1146 * connections may be added, and set maxconn to the sum of the two.
1147 * If maxconn is set and not maxsslconn, maxsslconn is computed from
1148 * the remaining amount of memory between memmax and the cleartext
1149 * connections. If neither are set, then it is considered that all
1150 * connections are SSL-capable, and maxconn is computed based on this,
1151 * then maxsslconn accordingly. We need to know if SSL is used on the
1152 * frontends, backends, or both, because when it's used on both sides,
1153 * we need twice the value for maxsslconn, but we only count the
1154 * handshake once since it is not performed on the two sides at the
1155 * same time (frontend-side is terminated before backend-side begins).
1156 * The SSL stack is supposed to have filled ssl_session_cost and
Willy Tarreau474b96a2015-01-28 19:03:21 +01001157 * ssl_handshake_cost during its initialization. In any case, if
1158 * SYSTEM_MAXCONN is set, we still enforce it as an upper limit for
1159 * maxconn in order to protect the system.
Willy Tarreaud0256482015-01-15 21:45:22 +01001160 */
1161 if (!global.rlimit_memmax) {
1162 if (global.maxconn == 0) {
1163 global.maxconn = DEFAULT_MAXCONN;
1164 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1165 fprintf(stderr, "Note: setting global.maxconn to %d.\n", global.maxconn);
1166 }
1167 }
1168#ifdef USE_OPENSSL
1169 else if (!global.maxconn && !global.maxsslconn &&
1170 (global.ssl_used_frontend || global.ssl_used_backend)) {
1171 /* memmax is set, compute everything automatically. Here we want
1172 * to ensure that all SSL connections will be served. We take
1173 * care of the number of sides where SSL is used, and consider
1174 * the worst case : SSL used on both sides and doing a handshake
1175 * simultaneously. Note that we can't have more than maxconn
1176 * handshakes at a time by definition, so for the worst case of
1177 * two SSL conns per connection, we count a single handshake.
1178 */
1179 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1180 int64_t mem = global.rlimit_memmax * 1048576ULL;
1181
1182 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1183 mem -= global.maxzlibmem;
1184 mem = mem * MEM_USABLE_RATIO;
1185
1186 global.maxconn = mem /
Willy Tarreau87b09662015-04-03 00:22:06 +02001187 ((STREAM_MAX_COST + 2 * global.tune.bufsize) + // stream + 2 buffers per stream
Willy Tarreaud0256482015-01-15 21:45:22 +01001188 sides * global.ssl_session_max_cost + // SSL buffers, one per side
1189 global.ssl_handshake_max_cost); // 1 handshake per connection max
1190
1191 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001192#ifdef SYSTEM_MAXCONN
1193 if (global.maxconn > DEFAULT_MAXCONN)
1194 global.maxconn = DEFAULT_MAXCONN;
1195#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001196 global.maxsslconn = sides * global.maxconn;
1197 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1198 fprintf(stderr, "Note: setting global.maxconn to %d and global.maxsslconn to %d.\n",
1199 global.maxconn, global.maxsslconn);
1200 }
1201 else if (!global.maxsslconn &&
1202 (global.ssl_used_frontend || global.ssl_used_backend)) {
1203 /* memmax and maxconn are known, compute maxsslconn automatically.
1204 * maxsslconn being forced, we don't know how many of it will be
1205 * on each side if both sides are being used. The worst case is
1206 * when all connections use only one SSL instance because
1207 * handshakes may be on two sides at the same time.
1208 */
1209 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1210 int64_t mem = global.rlimit_memmax * 1048576ULL;
1211 int64_t sslmem;
1212
1213 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1214 mem -= global.maxzlibmem;
1215 mem = mem * MEM_USABLE_RATIO;
1216
Willy Tarreau87b09662015-04-03 00:22:06 +02001217 sslmem = mem - global.maxconn * (int64_t)(STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001218 global.maxsslconn = sslmem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost);
1219 global.maxsslconn = round_2dig(global.maxsslconn);
1220
1221 if (sslmem <= 0 || global.maxsslconn < sides) {
1222 Alert("Cannot compute the automatic maxsslconn because global.maxconn is already too "
1223 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1224 "without SSL is %d, but %d was found and SSL is in use.\n",
1225 global.rlimit_memmax,
Willy Tarreau87b09662015-04-03 00:22:06 +02001226 (int)(mem / (STREAM_MAX_COST + 2 * global.tune.bufsize)),
Willy Tarreaud0256482015-01-15 21:45:22 +01001227 global.maxconn);
1228 exit(1);
1229 }
1230
1231 if (global.maxsslconn > sides * global.maxconn)
1232 global.maxsslconn = sides * global.maxconn;
1233
1234 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
1235 fprintf(stderr, "Note: setting global.maxsslconn to %d\n", global.maxsslconn);
1236 }
1237#endif
1238 else if (!global.maxconn) {
1239 /* memmax and maxsslconn are known/unused, compute maxconn automatically */
1240 int sides = !!global.ssl_used_frontend + !!global.ssl_used_backend;
1241 int64_t mem = global.rlimit_memmax * 1048576ULL;
1242 int64_t clearmem;
1243
1244 if (global.ssl_used_frontend || global.ssl_used_backend)
1245 mem -= global.tune.sslcachesize * 200; // about 200 bytes per SSL cache entry
1246
1247 mem -= global.maxzlibmem;
1248 mem = mem * MEM_USABLE_RATIO;
1249
1250 clearmem = mem;
1251 if (sides)
1252 clearmem -= (global.ssl_session_max_cost + global.ssl_handshake_max_cost) * (int64_t)global.maxsslconn;
1253
Willy Tarreau87b09662015-04-03 00:22:06 +02001254 global.maxconn = clearmem / (STREAM_MAX_COST + 2 * global.tune.bufsize);
Willy Tarreaud0256482015-01-15 21:45:22 +01001255 global.maxconn = round_2dig(global.maxconn);
Willy Tarreau474b96a2015-01-28 19:03:21 +01001256#ifdef SYSTEM_MAXCONN
1257 if (global.maxconn > DEFAULT_MAXCONN)
1258 global.maxconn = DEFAULT_MAXCONN;
1259#endif /* SYSTEM_MAXCONN */
Willy Tarreaud0256482015-01-15 21:45:22 +01001260
1261 if (clearmem <= 0 || !global.maxconn) {
1262 Alert("Cannot compute the automatic maxconn because global.maxsslconn is already too "
1263 "high for the global.memmax value (%d MB). The absolute maximum possible value "
1264 "is %d, but %d was found.\n",
1265 global.rlimit_memmax,
1266 (int)(mem / (global.ssl_session_max_cost + global.ssl_handshake_max_cost)),
1267 global.maxsslconn);
1268 exit(1);
1269 }
1270
1271 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1272 if (sides && global.maxsslconn > sides * global.maxconn) {
1273 fprintf(stderr, "Note: global.maxsslconn is forced to %d which causes global.maxconn "
1274 "to be limited to %d. Better reduce global.maxsslconn to get more "
1275 "room for extra connections.\n", global.maxsslconn, global.maxconn);
1276 }
1277 fprintf(stderr, "Note: setting global.maxconn to %d\n", global.maxconn);
1278 }
1279 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001280
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001281 if (!global.maxpipes) {
1282 /* maxpipes not specified. Count how many frontends and backends
1283 * may be using splicing, and bound that to maxconn.
1284 */
1285 struct proxy *cur;
1286 int nbfe = 0, nbbe = 0;
1287
1288 for (cur = proxy; cur; cur = cur->next) {
1289 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
1290 if (cur->cap & PR_CAP_FE)
1291 nbfe += cur->maxconn;
1292 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +01001293 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001294 }
1295 }
1296 global.maxpipes = MAX(nbfe, nbbe);
1297 if (global.maxpipes > global.maxconn)
1298 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +01001299 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +01001300 }
1301
1302
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001303 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001304 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +01001305 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001306
Willy Tarreau3c63fd82011-09-07 18:00:47 +02001307 if (global.stats_fe)
1308 global.maxsock += global.stats_fe->maxconn;
1309
1310 if (peers) {
1311 /* peers also need to bypass global maxconn */
1312 struct peers *p = peers;
1313
1314 for (p = peers; p; p = p->next)
1315 if (p->peers_fe)
1316 global.maxsock += p->peers_fe->maxconn;
1317 }
1318
Willy Tarreau1db37712007-06-03 17:16:49 +02001319 if (global.tune.maxpollevents <= 0)
1320 global.tune.maxpollevents = MAX_POLL_EVENTS;
1321
Willy Tarreau6f4a82c2009-03-21 20:43:57 +01001322 if (global.tune.recv_enough == 0)
1323 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
1324
Willy Tarreau27097842015-09-28 13:53:23 +02001325 if (global.tune.maxrewrite < 0)
1326 global.tune.maxrewrite = MAXREWRITE;
1327
Willy Tarreau27a674e2009-08-17 07:23:33 +02001328 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
1329 global.tune.maxrewrite = global.tune.bufsize / 2;
1330
Willy Tarreaubaaee002006-06-26 02:48:02 +02001331 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
1332 /* command line debug mode inhibits configuration mode */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001333 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001334 global.mode |= (arg_mode & (MODE_DEBUG | MODE_FOREGROUND));
1335 }
1336
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001337 if (arg_mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001338 /* command line daemon mode inhibits foreground and debug modes mode */
1339 global.mode &= ~(MODE_DEBUG | MODE_FOREGROUND);
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001340 global.mode |= (arg_mode & (MODE_DAEMON | MODE_SYSTEMD));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001341 }
Willy Tarreau772f0dd2012-10-26 16:04:28 +02001342
1343 global.mode |= (arg_mode & (MODE_QUIET | MODE_VERBOSE));
Willy Tarreaubaaee002006-06-26 02:48:02 +02001344
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001345 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET))) {
1346 Warning("<debug> mode incompatible with <quiet>, <daemon> and <systemd>. Keeping <debug> only.\n");
1347 global.mode &= ~(MODE_DAEMON | MODE_SYSTEMD | MODE_QUIET);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001348 }
1349
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01001350 if ((global.nbproc > 1) && !(global.mode & (MODE_DAEMON | MODE_SYSTEMD))) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001351 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
1352 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
1353 global.nbproc = 1;
1354 }
1355
1356 if (global.nbproc < 1)
1357 global.nbproc = 1;
1358
Vincent Bernat3c2f2f22016-04-03 13:48:42 +02001359 swap_buffer = calloc(1, global.tune.bufsize);
1360 get_http_auth_buff = calloc(1, global.tune.bufsize);
Thierry FOURNIER7e25df32015-07-24 19:31:59 +02001361 static_table_key = calloc(1, sizeof(*static_table_key));
Willy Tarreau8096de92010-02-26 11:12:27 +01001362
Vincent Bernat3c2f2f22016-04-03 13:48:42 +02001363 fdinfo = calloc(1, sizeof(struct fdinfo) * (global.maxsock));
1364 fdtab = calloc(1, sizeof(struct fdtab) * (global.maxsock));
Willy Tarreauef1d1f82007-04-16 00:25:25 +02001365 /*
1366 * Note: we could register external pollers here.
1367 * Built-in pollers have been registered before main().
1368 */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001369
Willy Tarreau43b78992009-01-25 15:42:27 +01001370 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +02001371 disable_poller("kqueue");
1372
Willy Tarreau43b78992009-01-25 15:42:27 +01001373 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001374 disable_poller("epoll");
1375
Willy Tarreau43b78992009-01-25 15:42:27 +01001376 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001377 disable_poller("poll");
1378
Willy Tarreau43b78992009-01-25 15:42:27 +01001379 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +02001380 disable_poller("select");
1381
1382 /* Note: we could disable any poller by name here */
1383
Christopher Fauletb3f4e142016-03-07 12:46:38 +01001384 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
Willy Tarreau2ff76222007-04-09 19:29:56 +02001385 list_pollers(stderr);
Christopher Fauletb3f4e142016-03-07 12:46:38 +01001386 fprintf(stderr, "\n");
1387 list_filters(stderr);
1388 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001389
Willy Tarreau4f60f162007-04-08 16:39:58 +02001390 if (!init_pollers()) {
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001391 Alert("No polling mechanism available.\n"
1392 " It is likely that haproxy was built with TARGET=generic and that FD_SETSIZE\n"
1393 " is too low on this platform to support maxconn and the number of listeners\n"
1394 " and servers. You should rebuild haproxy specifying your system using TARGET=\n"
1395 " in order to support other polling systems (poll, epoll, kqueue) or reduce the\n"
Prach Pongpanichb837e682013-05-14 20:56:28 +02001396 " global maxconn setting to accommodate the system's limitation. For reference,\n"
Willy Tarreau3fa87b12013-03-31 14:41:15 +02001397 " FD_SETSIZE=%d on this system, global.maxconn=%d resulting in a maximum of\n"
1398 " %d file descriptors. You should thus reduce global.maxconn by %d. Also,\n"
1399 " check build settings using 'haproxy -vv'.\n\n",
1400 FD_SETSIZE, global.maxconn, global.maxsock, (global.maxsock + 1 - FD_SETSIZE) / 2);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001401 exit(1);
1402 }
Willy Tarreau2ff76222007-04-09 19:29:56 +02001403 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
1404 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001405 }
1406
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001407 if (!global.node)
1408 global.node = strdup(hostname);
1409
Thierry FOURNIERa4a0f3d2015-01-23 12:08:30 +01001410 if (!hlua_post_init())
1411 exit(1);
Thomas Holmes6abded42015-05-12 16:23:58 +01001412
Baptiste Assmann325137d2015-04-13 23:40:55 +02001413 /* initialize structures for name resolution */
Baptiste Assmann5cd1b922017-02-02 22:44:15 +01001414 if (!dns_init_resolvers(0))
Baptiste Assmann325137d2015-04-13 23:40:55 +02001415 exit(1);
Maxime de Roucy0f503922016-05-13 23:52:55 +02001416
1417 free(err_msg);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001418}
1419
Simon Horman6fb82592011-07-15 13:14:11 +09001420static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +09001421{
Simon Hormanac821422011-07-15 13:14:09 +09001422 struct acl_term_suite *suite, *suiteb;
1423 struct acl_term *term, *termb;
1424
Simon Horman6fb82592011-07-15 13:14:11 +09001425 if (!cond)
1426 return;
1427
1428 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
1429 list_for_each_entry_safe(term, termb, &suite->terms, list) {
1430 LIST_DEL(&term->list);
1431 free(term);
Simon Hormanac821422011-07-15 13:14:09 +09001432 }
Simon Horman6fb82592011-07-15 13:14:11 +09001433 LIST_DEL(&suite->list);
1434 free(suite);
1435 }
1436
1437 free(cond);
1438}
1439
1440static void deinit_tcp_rules(struct list *rules)
1441{
Thierry FOURNIERa28a9422015-08-04 19:35:46 +02001442 struct act_rule *trule, *truleb;
Simon Horman6fb82592011-07-15 13:14:11 +09001443
1444 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +09001445 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +09001446 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +09001447 free(trule);
1448 }
1449}
1450
Simon Horman6fb82592011-07-15 13:14:11 +09001451static void deinit_stick_rules(struct list *rules)
1452{
1453 struct sticking_rule *rule, *ruleb;
1454
1455 list_for_each_entry_safe(rule, ruleb, rules, list) {
1456 LIST_DEL(&rule->list);
1457 deinit_acl_cond(rule->cond);
Christopher Faulet476e5d02016-10-26 11:34:47 +02001458 release_sample_expr(rule->expr);
Simon Horman6fb82592011-07-15 13:14:11 +09001459 free(rule);
1460 }
1461}
1462
Cyril Bonté203ec5a2017-03-23 22:44:13 +01001463void deinit(void)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001464{
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001465 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001466 struct cap_hdr *h,*h_next;
1467 struct server *s,*s_next;
1468 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001469 struct acl_cond *cond, *condb;
1470 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001471 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001472 struct switching_rule *rule, *ruleb;
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001473 struct server_rule *srule, *sruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001474 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001475 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +01001476 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001477 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +02001478 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +01001479 struct logformat_node *lf, *lfb;
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001480 struct bind_conf *bind_conf, *bind_back;
Willy Tarreaucdb737e2016-12-21 18:43:10 +01001481 struct build_opts_str *bol, *bolb;
Willy Tarreau05554e62016-12-21 20:46:26 +01001482 struct post_deinit_fct *pdf;
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001483 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001484
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001485 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001486 while (p) {
Willy Tarreau8113a5d2012-10-04 08:01:43 +02001487 free(p->conf.file);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001488 free(p->id);
1489 free(p->check_req);
1490 free(p->cookie_name);
1491 free(p->cookie_domain);
1492 free(p->url_param_name);
1493 free(p->capture_name);
1494 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +09001495 free(p->rdp_cookie_name);
Willy Tarreau62a61232013-04-12 18:13:46 +02001496 if (p->conf.logformat_string != default_http_log_format &&
1497 p->conf.logformat_string != default_tcp_log_format &&
1498 p->conf.logformat_string != clf_http_log_format)
1499 free(p->conf.logformat_string);
Willy Tarreau196729e2012-05-31 19:30:26 +02001500
Willy Tarreau62a61232013-04-12 18:13:46 +02001501 free(p->conf.lfs_file);
1502 free(p->conf.uniqueid_format_string);
1503 free(p->conf.uif_file);
Godbachaf1a75d2013-10-02 17:10:11 +08001504 free(p->lbprm.map.srv);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001505
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001506 if (p->conf.logformat_sd_string != default_rfc5424_sd_log_format)
1507 free(p->conf.logformat_sd_string);
1508 free(p->conf.lfsd_file);
1509
Willy Tarreaua534fea2008-08-03 12:19:50 +02001510 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +02001511 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001512
Willy Tarreauf4f04122010-01-28 18:10:50 +01001513 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
1514 LIST_DEL(&cwl->list);
1515 free(cwl->s);
1516 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001517 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001518
Willy Tarreauf4f04122010-01-28 18:10:50 +01001519 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
1520 LIST_DEL(&cwl->list);
1521 free(cwl->s);
1522 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +01001523 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001524
Willy Tarreaub80c2302007-11-30 20:51:32 +01001525 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
1526 LIST_DEL(&cond->list);
1527 prune_acl_cond(cond);
1528 free(cond);
1529 }
1530
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001531 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001532 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001533 regex_free(exp->preg);
1534 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001535 }
1536
Willy Tarreau98d04852015-05-26 12:18:29 +02001537 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001538 expb = exp;
1539 exp = exp->next;
1540 free(expb);
1541 }
1542
1543 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001544 if (exp->preg) {
Thierry FOURNIER09af0d62014-06-18 11:35:54 +02001545 regex_free(exp->preg);
1546 free(exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001547 }
1548
Willy Tarreau98d04852015-05-26 12:18:29 +02001549 free((char *)exp->replace);
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001550 expb = exp;
1551 exp = exp->next;
1552 free(expb);
1553 }
1554
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001555 /* build a list of unique uri_auths */
1556 if (!ua)
1557 ua = p->uri_auth;
1558 else {
1559 /* check if p->uri_auth is unique */
1560 for (uap = ua; uap; uap=uap->next)
1561 if (uap == p->uri_auth)
1562 break;
1563
Willy Tarreauaccc4e12008-06-24 11:14:45 +02001564 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001565 /* add it, if it is */
1566 p->uri_auth->next = ua;
1567 ua = p->uri_auth;
1568 }
1569 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +02001570
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001571 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
1572 LIST_DEL(&acl->list);
1573 prune_acl(acl);
1574 free(acl);
1575 }
1576
Willy Tarreau4a5cade2012-04-05 21:09:48 +02001577 list_for_each_entry_safe(srule, sruleb, &p->server_rules, list) {
1578 LIST_DEL(&srule->list);
1579 prune_acl_cond(srule->cond);
1580 free(srule->cond);
1581 free(srule);
1582 }
1583
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001584 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
1585 LIST_DEL(&rule->list);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001586 if (rule->cond) {
1587 prune_acl_cond(rule->cond);
1588 free(rule->cond);
Thierry FOURNIER / OZON.IO4ed1c952016-11-24 23:57:54 +01001589 free(rule->file);
Willy Tarreauf51658d2014-04-23 01:21:56 +02001590 }
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001591 free(rule);
1592 }
1593
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001594 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
1595 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +01001596 if (rdr->cond) {
1597 prune_acl_cond(rdr->cond);
1598 free(rdr->cond);
1599 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001600 free(rdr->rdr_str);
Thierry FOURNIERd18cd0f2013-11-29 12:15:45 +01001601 list_for_each_entry_safe(lf, lfb, &rdr->rdr_fmt, list) {
1602 LIST_DEL(&lf->list);
1603 free(lf);
1604 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +02001605 free(rdr);
1606 }
1607
William Lallemand0f99e342011-10-12 17:50:54 +02001608 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
1609 LIST_DEL(&log->list);
1610 free(log);
1611 }
1612
William Lallemand723b73a2012-02-08 16:37:49 +01001613 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
1614 LIST_DEL(&lf->list);
1615 free(lf);
1616 }
1617
Dragan Dosen0b85ece2015-09-25 19:17:44 +02001618 list_for_each_entry_safe(lf, lfb, &p->logformat_sd, list) {
1619 LIST_DEL(&lf->list);
1620 free(lf);
1621 }
1622
Simon Hormanac821422011-07-15 13:14:09 +09001623 deinit_tcp_rules(&p->tcp_req.inspect_rules);
1624 deinit_tcp_rules(&p->tcp_req.l4_rules);
1625
Simon Horman6fb82592011-07-15 13:14:11 +09001626 deinit_stick_rules(&p->storersp_rules);
1627 deinit_stick_rules(&p->sticking_rules);
1628
Willy Tarreaubaaee002006-06-26 02:48:02 +02001629 h = p->req_cap;
1630 while (h) {
1631 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001632 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001633 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001634 free(h);
1635 h = h_next;
1636 }/* end while(h) */
1637
1638 h = p->rsp_cap;
1639 while (h) {
1640 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001641 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001642 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001643 free(h);
1644 h = h_next;
1645 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001646
Willy Tarreaubaaee002006-06-26 02:48:02 +02001647 s = p->srv;
1648 while (s) {
1649 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001650
Willy Tarreau5b3a2022012-09-28 15:01:02 +02001651 if (s->check.task) {
1652 task_delete(s->check.task);
1653 task_free(s->check.task);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001654 }
Simon Hormand60d6912013-11-25 10:46:36 +09001655 if (s->agent.task) {
1656 task_delete(s->agent.task);
1657 task_free(s->agent.task);
1658 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001659
Willy Tarreau2e993902011-10-31 11:53:20 +01001660 if (s->warmup) {
1661 task_delete(s->warmup);
1662 task_free(s->warmup);
1663 }
1664
Willy Tarreaua534fea2008-08-03 12:19:50 +02001665 free(s->id);
1666 free(s->cookie);
Willy Tarreau1ae1b7b2012-09-28 15:28:30 +02001667 free(s->check.bi);
1668 free(s->check.bo);
Simon Hormand60d6912013-11-25 10:46:36 +09001669 free(s->agent.bi);
1670 free(s->agent.bo);
James Brown55f9ff12015-10-21 18:19:05 -07001671 free(s->agent.send_string);
Sárközi, László34c01792014-09-05 10:08:23 +02001672 free((char*)s->conf.file);
Willy Tarreau17d45382016-12-22 21:16:08 +01001673
1674 if (s->use_ssl || s->check.use_ssl) {
1675 if (xprt_get(XPRT_SSL) && xprt_get(XPRT_SSL)->destroy_srv)
1676 xprt_get(XPRT_SSL)->destroy_srv(s);
1677 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001678 free(s);
1679 s = s_next;
1680 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001681
Willy Tarreau4348fad2012-09-20 16:48:07 +02001682 list_for_each_entry_safe(l, l_next, &p->conf.listeners, by_fe) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02001683 /*
1684 * Zombie proxy, the listener just pretend to be up
1685 * because they still hold an opened fd.
1686 * Close it and give the listener its real state.
1687 */
1688 if (p->state == PR_STSTOPPED && l->state >= LI_ZOMBIE) {
1689 close(l->fd);
1690 l->state = LI_INIT;
1691 }
Willy Tarreauf6e2cc72010-09-03 10:38:17 +02001692 unbind_listener(l);
1693 delete_listener(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001694 LIST_DEL(&l->by_fe);
1695 LIST_DEL(&l->by_bind);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001696 free(l->name);
1697 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001698 free(l);
Willy Tarreau4348fad2012-09-20 16:48:07 +02001699 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001700
Willy Tarreau4348fad2012-09-20 16:48:07 +02001701 /* Release unused SSL configs. */
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001702 list_for_each_entry_safe(bind_conf, bind_back, &p->conf.bind, by_fe) {
Willy Tarreau795cdab2016-12-22 17:30:54 +01001703 if (bind_conf->xprt->destroy_bind_conf)
1704 bind_conf->xprt->destroy_bind_conf(bind_conf);
Willy Tarreau2a65ff02012-09-13 17:54:29 +02001705 free(bind_conf->file);
1706 free(bind_conf->arg);
1707 LIST_DEL(&bind_conf->by_fe);
1708 free(bind_conf);
1709 }
Willy Tarreauf5ae8f72012-09-07 16:58:00 +02001710
Christopher Fauletd7c91962015-04-30 11:48:27 +02001711 flt_deinit(p);
1712
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +01001713 free(p->desc);
1714 free(p->fwdfor_hdr_name);
1715
Willy Tarreauff011f22011-01-06 17:51:27 +01001716 free_http_req_rules(&p->http_req_rules);
Sasha Pachev218f0642014-06-16 12:05:59 -06001717 free_http_res_rules(&p->http_res_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +02001718 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +01001719
Willy Tarreaucf7f3202007-05-13 22:46:04 +02001720 pool_destroy2(p->req_cap_pool);
1721 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +09001722 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001723
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001724 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001725 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +02001726 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001727 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +02001728
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001729 while (ua) {
1730 uap = ua;
1731 ua = ua->next;
1732
Willy Tarreaua534fea2008-08-03 12:19:50 +02001733 free(uap->uri_prefix);
1734 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001735 free(uap->node);
1736 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001737
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001738 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001739 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001740
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001741 free(uap);
1742 }
1743
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001744 userlist_free(userlist);
1745
David Carlier834cb2e2015-09-25 12:02:25 +01001746 cfg_unregister_sections();
1747
1748 free_trash_buffers();
1749 chunk_destroy(&trash);
1750
Willy Tarreaudd815982007-10-16 12:25:14 +02001751 protocol_unbind_all();
1752
Willy Tarreau05554e62016-12-21 20:46:26 +01001753 list_for_each_entry(pdf, &post_deinit_list, list)
1754 pdf->fct();
1755
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001756 free(global.log_send_hostname); global.log_send_hostname = NULL;
Dragan Dosen43885c72015-10-01 13:18:13 +02001757 chunk_destroy(&global.log_tag);
Willy Tarreaua534fea2008-08-03 12:19:50 +02001758 free(global.chroot); global.chroot = NULL;
1759 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001760 free(global.node); global.node = NULL;
1761 free(global.desc); global.desc = NULL;
Godbach4cc1b0d2013-06-26 16:49:51 +08001762 free(fdinfo); fdinfo = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001763 free(fdtab); fdtab = NULL;
1764 free(oldpids); oldpids = NULL;
David Carlier834cb2e2015-09-25 12:02:25 +01001765 free(static_table_key); static_table_key = NULL;
1766 free(get_http_auth_buff); get_http_auth_buff = NULL;
1767 free(swap_buffer); swap_buffer = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001768 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001769
William Lallemand0f99e342011-10-12 17:50:54 +02001770 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1771 LIST_DEL(&log->list);
1772 free(log);
1773 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001774 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
Maxime de Roucy0f503922016-05-13 23:52:55 +02001775 free(wl->s);
Willy Tarreau477ecd82010-01-03 21:12:30 +01001776 LIST_DEL(&wl->list);
1777 free(wl);
1778 }
1779
Willy Tarreaucdb737e2016-12-21 18:43:10 +01001780 list_for_each_entry_safe(bol, bolb, &build_opts_list, list) {
1781 if (bol->must_free)
1782 free((void *)bol->str);
1783 LIST_DEL(&bol->list);
1784 free(bol);
1785 }
1786
Christopher Fauletff2613e2016-11-09 11:36:17 +01001787 vars_prune(&global.vars, NULL, NULL);
1788
Willy Tarreau87b09662015-04-03 00:22:06 +02001789 pool_destroy2(pool2_stream);
Willy Tarreaufeb76402015-04-03 14:10:06 +02001790 pool_destroy2(pool2_session);
Willy Tarreauf2943dc2012-10-26 20:10:28 +02001791 pool_destroy2(pool2_connection);
Willy Tarreaub686afd2017-02-08 11:06:11 +01001792 pool_destroy2(pool2_trash);
Willy Tarreau9b28e032012-10-12 23:49:43 +02001793 pool_destroy2(pool2_buffer);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001794 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001795 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001796 pool_destroy2(pool2_capture);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001797 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001798 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001799 pool_destroy2(pool2_hdr_idx);
Willy Tarreau63986c72015-04-03 22:55:33 +02001800 pool_destroy2(pool2_http_txn);
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001801 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001802} /* end deinit() */
1803
Willy Tarreaubb545b42010-08-25 12:58:59 +02001804/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1805 * pids the signal was correctly delivered to.
1806 */
1807static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001808{
1809 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001810 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001811 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001812 if (kill(oldpids[p], sig) == 0)
1813 ret++;
1814 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001815}
1816
Willy Tarreau918ff602011-07-25 16:33:49 +02001817/* Runs the polling loop */
Willy Tarreau1b5af7c2016-12-21 18:19:57 +01001818static void run_poll_loop()
Willy Tarreau4f60f162007-04-08 16:39:58 +02001819{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001820 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001821
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001822 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001823 while (1) {
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001824 /* Process a few tasks */
1825 process_runnable_tasks();
1826
Willy Tarreau29857942009-05-10 09:01:21 +02001827 /* check if we caught some signals and process them */
1828 signal_process_queue();
1829
Willy Tarreau58b458d2008-06-29 22:40:23 +02001830 /* Check if we can expire some tasks */
Thierry FOURNIER9cf7c4b2014-12-15 13:26:01 +01001831 next = wake_expired_tasks();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001832
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001833 /* stop when there's nothing left to do */
1834 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001835 break;
1836
Willy Tarreau10146c92015-04-13 20:44:19 +02001837 /* expire immediately if events are pending */
Christopher Faulet34c5cc92016-12-06 09:15:30 +01001838 if (fd_cache_num || tasks_run_queue || signal_queue_len || applets_active_queue)
Willy Tarreau10146c92015-04-13 20:44:19 +02001839 next = now_ms;
1840
Willy Tarreau58b458d2008-06-29 22:40:23 +02001841 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001842 cur_poller.poll(&cur_poller, next);
Willy Tarreau033cd9d2014-01-25 19:24:15 +01001843 fd_process_cached_events();
Willy Tarreau3c595ac2015-04-19 09:59:31 +02001844 applet_run_active();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001845 }
1846}
1847
Willy Tarreaue9b26022011-08-01 20:57:55 +02001848/* This is the global management task for listeners. It enables listeners waiting
1849 * for global resources when there are enough free resource, or at least once in
1850 * a while. It is designed to be called as a task.
1851 */
1852static struct task *manage_global_listener_queue(struct task *t)
1853{
1854 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001855 /* queue is empty, nothing to do */
1856 if (LIST_ISEMPTY(&global_listener_queue))
1857 goto out;
1858
1859 /* If there are still too many concurrent connections, let's wait for
1860 * some of them to go away. We don't need to re-arm the timer because
1861 * each of them will scan the queue anyway.
1862 */
1863 if (unlikely(actconn >= global.maxconn))
1864 goto out;
1865
1866 /* We should periodically try to enable listeners waiting for a global
1867 * resource here, because it is possible, though very unlikely, that
1868 * they have been blocked by a temporary lack of global resource such
1869 * as a file descriptor or memory and that the temporary condition has
1870 * disappeared.
1871 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001872 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001873
1874 out:
1875 t->expire = next;
1876 task_queue(t);
1877 return t;
1878}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001879
Willy Tarreaubaaee002006-06-26 02:48:02 +02001880int main(int argc, char **argv)
1881{
1882 int err, retry;
1883 struct rlimit limit;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001884 char errmsg[100];
Willy Tarreau269ab312012-09-05 08:02:48 +02001885 int pidfd = -1;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001886
Emeric Bruncf20bf12010-10-22 16:06:11 +02001887 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001888 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1889 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1890 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001891
Willy Tarreaue437c442010-03-17 18:02:46 +01001892 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1893 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1894 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001895 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001896 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001897
Willy Tarreaudc23a922011-02-16 11:10:36 +01001898 /* ulimits */
1899 if (!global.rlimit_nofile)
1900 global.rlimit_nofile = global.maxsock;
1901
1902 if (global.rlimit_nofile) {
1903 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1904 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
Willy Tarreauef635472016-06-21 11:48:18 +02001905 /* try to set it to the max possible at least */
1906 getrlimit(RLIMIT_NOFILE, &limit);
Willy Tarreau164dd0b2016-06-21 11:51:59 +02001907 limit.rlim_cur = limit.rlim_max;
1908 if (setrlimit(RLIMIT_NOFILE, &limit) != -1)
1909 getrlimit(RLIMIT_NOFILE, &limit);
1910
Willy Tarreauef635472016-06-21 11:48:18 +02001911 Warning("[%s.main()] Cannot raise FD limit to %d, limit is %d.\n", argv[0], global.rlimit_nofile, (int)limit.rlim_cur);
1912 global.rlimit_nofile = limit.rlim_cur;
Willy Tarreaudc23a922011-02-16 11:10:36 +01001913 }
1914 }
1915
1916 if (global.rlimit_memmax) {
1917 limit.rlim_cur = limit.rlim_max =
Willy Tarreau70060452015-12-14 12:46:07 +01001918 global.rlimit_memmax * 1048576ULL;
Willy Tarreaudc23a922011-02-16 11:10:36 +01001919#ifdef RLIMIT_AS
1920 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1921 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1922 argv[0], global.rlimit_memmax);
1923 }
1924#else
1925 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1926 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1927 argv[0], global.rlimit_memmax);
1928 }
1929#endif
1930 }
1931
Olivier Houchardf73629d2017-04-05 22:33:04 +02001932 if (old_unixsocket) {
1933 if (get_old_sockets(old_unixsocket) != 0) {
1934 Alert("Failed to get the sockets from the old process!\n");
1935 exit(1);
1936 }
1937 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001938 /* We will loop at most 100 times with 10 ms delay each time.
1939 * That's at most 1 second. We only send a signal to old pids
1940 * if we cannot grab at least one port.
1941 */
1942 retry = MAX_START_RETRIES;
1943 err = ERR_NONE;
1944 while (retry >= 0) {
1945 struct timeval w;
1946 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001947 /* exit the loop on no error or fatal error */
1948 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001949 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001950 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001951 break;
1952
1953 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1954 * listening sockets. So on those platforms, it would be wiser to
1955 * simply send SIGUSR1, which will not be undoable.
1956 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001957 if (tell_old_pids(SIGTTOU) == 0) {
1958 /* no need to wait if we can't contact old pids */
1959 retry = 0;
1960 continue;
1961 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001962 /* give some time to old processes to stop listening */
1963 w.tv_sec = 0;
1964 w.tv_usec = 10*1000;
1965 select(0, NULL, NULL, NULL, &w);
1966 retry--;
1967 }
1968
1969 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001970 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001971 if (retry != MAX_START_RETRIES && nb_oldpids) {
1972 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001973 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001974 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001975 exit(1);
1976 }
1977
1978 if (listeners == 0) {
Willy Tarreauf2ee0162015-08-09 11:01:51 +02001979 Alert("[%s.main()] No enabled listener found (check for 'bind' directives) ! Exiting.\n", argv[0]);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001980 /* Note: we don't have to send anything to the old pids because we
1981 * never stopped them. */
1982 exit(1);
1983 }
1984
Emeric Bruncf20bf12010-10-22 16:06:11 +02001985 err = protocol_bind_all(errmsg, sizeof(errmsg));
1986 if ((err & ~ERR_WARN) != ERR_NONE) {
1987 if ((err & ERR_ALERT) || (err & ERR_WARN))
1988 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1989
Willy Tarreaudd815982007-10-16 12:25:14 +02001990 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1991 protocol_unbind_all(); /* cleanup everything we can */
1992 if (nb_oldpids)
1993 tell_old_pids(SIGTTIN);
1994 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001995 } else if (err & ERR_WARN) {
1996 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001997 }
Olivier Houchardf73629d2017-04-05 22:33:04 +02001998 /* Ok, all listener should now be bound, close any leftover sockets
1999 * the previous process gave us, we don't need them anymore
2000 */
2001 while (xfer_sock_list != NULL) {
2002 struct xfer_sock_list *tmpxfer = xfer_sock_list->next;
2003 close(xfer_sock_list->fd);
2004 free(xfer_sock_list->iface);
2005 free(xfer_sock_list->namespace);
2006 free(xfer_sock_list);
2007 xfer_sock_list = tmpxfer;
2008 }
Willy Tarreaudd815982007-10-16 12:25:14 +02002009
Willy Tarreaubaaee002006-06-26 02:48:02 +02002010 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02002011 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
2012 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002013
Willy Tarreaubaaee002006-06-26 02:48:02 +02002014 /* MODE_QUIET can inhibit alerts and warnings below this line */
2015
2016 global.mode &= ~MODE_STARTING;
2017 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
2018 /* detach from the tty */
2019 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002020 }
2021
2022 /* open log & pid files before the chroot */
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01002023 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD) && global.pidfile != NULL) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002024 unlink(global.pidfile);
2025 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
2026 if (pidfd < 0) {
2027 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
2028 if (nb_oldpids)
2029 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02002030 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002031 exit(1);
2032 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002033 }
2034
Willy Tarreaub38651a2007-03-24 17:24:39 +01002035 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
2036 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002037 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002038 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01002039 exit(1);
2040 }
2041
Willy Tarreau4e30ed72009-02-04 18:02:48 +01002042 /* If the user is not root, we'll still let him try the configuration
2043 * but we inform him that unexpected behaviour may occur.
2044 */
2045 if ((global.last_checks & LSTCHK_NETADM) && getuid())
2046 Warning("[%s.main()] Some options which require full privileges"
2047 " might not work well.\n"
2048 "", argv[0]);
2049
Willy Tarreauf223cc02007-10-15 18:57:08 +02002050 /* chroot if needed */
2051 if (global.chroot != NULL) {
Willy Tarreau21337822012-04-29 14:11:38 +02002052 if (chroot(global.chroot) == -1 || chdir("/") == -1) {
Willy Tarreauf223cc02007-10-15 18:57:08 +02002053 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
2054 if (nb_oldpids)
2055 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02002056 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02002057 exit(1);
2058 }
Willy Tarreauf223cc02007-10-15 18:57:08 +02002059 }
2060
Willy Tarreaubaaee002006-06-26 02:48:02 +02002061 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02002062 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002063
2064 /* Note that any error at this stage will be fatal because we will not
2065 * be able to restart the old pids.
2066 */
2067
2068 /* setgid / setuid */
Michael Schererab012dd2013-01-12 18:35:19 +01002069 if (global.gid) {
2070 if (getgroups(0, NULL) > 0 && setgroups(0, NULL) == -1)
2071 Warning("[%s.main()] Failed to drop supplementary groups. Using 'gid'/'group'"
2072 " without 'uid'/'user' is generally useless.\n", argv[0]);
2073
2074 if (setgid(global.gid) == -1) {
2075 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
2076 protocol_unbind_all();
2077 exit(1);
2078 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02002079 }
2080
2081 if (global.uid && setuid(global.uid) == -1) {
2082 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02002083 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002084 exit(1);
2085 }
2086
2087 /* check ulimits */
2088 limit.rlim_cur = limit.rlim_max = 0;
2089 getrlimit(RLIMIT_NOFILE, &limit);
2090 if (limit.rlim_cur < global.maxsock) {
2091 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 +02002092 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02002093 }
2094
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01002095 if (global.mode & (MODE_DAEMON | MODE_SYSTEMD)) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002096 struct proxy *px;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002097 struct peers *curpeers;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002098 int ret = 0;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01002099 int *children = calloc(global.nbproc, sizeof(int));
Willy Tarreaubaaee002006-06-26 02:48:02 +02002100 int proc;
Willy Tarreaub9571092016-10-25 17:20:24 +02002101 char *wrapper_fd;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002102
2103 /* the father launches the required number of processes */
2104 for (proc = 0; proc < global.nbproc; proc++) {
2105 ret = fork();
2106 if (ret < 0) {
2107 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02002108 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02002109 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002110 }
2111 else if (ret == 0) /* child breaks here */
2112 break;
Marc-Antoine Perennou992709b2013-02-12 10:53:52 +01002113 children[proc] = ret;
Willy Tarreau269ab312012-09-05 08:02:48 +02002114 if (pidfd >= 0) {
2115 char pidstr[100];
2116 snprintf(pidstr, sizeof(pidstr), "%d\n", ret);
Willy Tarreau89efaed2013-12-13 15:14:55 +01002117 shut_your_big_mouth_gcc(write(pidfd, pidstr, strlen(pidstr)));
Willy Tarreaubaaee002006-06-26 02:48:02 +02002118 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01002119 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02002120 }
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002121
2122#ifdef USE_CPU_AFFINITY
2123 if (proc < global.nbproc && /* child */
Willy Tarreaue7597492015-04-20 11:36:57 +02002124 proc < LONGBITS && /* only the first 32/64 processes may be pinned */
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002125 global.cpu_map[proc]) /* only do this if the process has a CPU map */
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002126#ifdef __FreeBSD__
2127 cpuset_setaffinity(CPU_LEVEL_WHICH, CPU_WHICH_PID, -1, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
2128#else
Willy Tarreaufc6c0322012-11-16 16:12:27 +01002129 sched_setaffinity(0, sizeof(unsigned long), (void *)&global.cpu_map[proc]);
2130#endif
Pieter Baauwcaa6a1b2015-09-17 21:26:40 +02002131#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +02002132 /* close the pidfile both in children and father */
Willy Tarreau269ab312012-09-05 08:02:48 +02002133 if (pidfd >= 0) {
2134 //lseek(pidfd, 0, SEEK_SET); /* debug: emulate eglibc bug */
2135 close(pidfd);
2136 }
Willy Tarreaud137dd32010-08-25 12:49:05 +02002137
Willy Tarreaub9571092016-10-25 17:20:24 +02002138 /* each child must notify the wrapper that it's ready by closing the requested fd */
2139 wrapper_fd = getenv("HAPROXY_WRAPPER_FD");
2140 if (wrapper_fd) {
2141 int pipe_fd = atoi(wrapper_fd);
2142
2143 if (pipe_fd >= 0)
2144 close(pipe_fd);
2145 }
2146
Willy Tarreaud137dd32010-08-25 12:49:05 +02002147 /* We won't ever use this anymore */
2148 free(oldpids); oldpids = NULL;
2149 free(global.chroot); global.chroot = NULL;
2150 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002151
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002152 if (proc == global.nbproc) {
2153 if (global.mode & MODE_SYSTEMD) {
William Lallemand6ad6bde2016-01-14 18:10:30 +01002154 int i;
2155
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002156 protocol_unbind_all();
William Lallemand6ad6bde2016-01-14 18:10:30 +01002157 for (i = 1; i < argc; i++) {
2158 memset(argv[i], '\0', strlen(argv[i]));
2159 }
2160 /* it's OK because "-Ds -f x" is the shortest form going here */
2161 memcpy(argv[0] + strlen(argv[0]), "-master", 8);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002162 for (proc = 0; proc < global.nbproc; proc++)
William Lallemand1e4fc432016-12-23 15:44:15 +01002163 while (waitpid(-1, NULL, 0) == -1 && errno == EINTR);
Willy Tarreauedaff0a2015-05-01 17:01:08 +02002164 }
2165 exit(0); /* parent must leave */
2166 }
2167
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002168 /* we might have to unbind some proxies from some processes */
2169 px = proxy;
2170 while (px != NULL) {
2171 if (px->bind_proc && px->state != PR_STSTOPPED) {
Olivier Houchard1fc05162017-04-06 01:05:05 +02002172 if (!(px->bind_proc & (1UL << proc))) {
2173 if (global.tune.options & GTUNE_SOCKET_TRANSFER)
2174 zombify_proxy(px);
2175 else
2176 stop_proxy(px);
2177 }
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01002178 }
2179 px = px->next;
2180 }
2181
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002182 /* we might have to unbind some peers sections from some processes */
2183 for (curpeers = peers; curpeers; curpeers = curpeers->next) {
2184 if (!curpeers->peers_fe)
2185 continue;
2186
2187 if (curpeers->peers_fe->bind_proc & (1UL << proc))
2188 continue;
2189
2190 stop_proxy(curpeers->peers_fe);
2191 /* disable this peer section so that it kills itself */
Willy Tarreau47c8c022015-09-28 16:39:25 +02002192 signal_unregister_handler(curpeers->sighandler);
2193 task_delete(curpeers->sync_task);
2194 task_free(curpeers->sync_task);
2195 curpeers->sync_task = NULL;
2196 task_free(curpeers->peers_fe->task);
2197 curpeers->peers_fe->task = NULL;
Willy Tarreauf83d3fe2015-05-01 19:13:41 +02002198 curpeers->peers_fe = NULL;
2199 }
2200
Dirkjan Bussink07fcaaa2014-04-28 22:57:16 +00002201 free(children);
2202 children = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002203 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
2204 * that we can detach from the TTY. We MUST NOT do it in other cases since
2205 * it would have already be done, and 0-2 would have been affected to listening
2206 * sockets
2207 */
Willy Tarreau106cb762008-11-16 07:40:34 +01002208 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02002209 /* detach from the tty */
2210 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01002211 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02002212 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
2213 }
2214 pid = getpid(); /* update child's pid */
2215 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02002216 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002217 }
2218
Baptiste Assmann26c6eb82017-02-02 23:14:51 +01002219 /* initialize structures for name resolution */
2220 if (!dns_init_resolvers(1))
2221 exit(1);
2222
Willy Tarreaudd815982007-10-16 12:25:14 +02002223 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02002224 /*
2225 * That's it : the central polling loop. Run until we stop.
2226 */
2227 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02002228
Willy Tarreaubaaee002006-06-26 02:48:02 +02002229 /* Do some cleanup */
2230 deinit();
2231
2232 exit(0);
2233}
2234
2235
2236/*
2237 * Local variables:
2238 * c-indent-level: 8
2239 * c-basic-offset: 8
2240 * End:
2241 */