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Willy Tarreaubaaee002006-06-26 02:48:02 +02001/*
2 * HA-Proxy : High Availability-enabled HTTP/TCP proxy
Willy Tarreau7d0aaf32011-03-10 23:25:56 +01003 * Copyright 2000-2011 Willy Tarreau <w@1wt.eu>.
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
28#include <stdio.h>
29#include <stdlib.h>
30#include <unistd.h>
31#include <string.h>
32#include <ctype.h>
33#include <sys/time.h>
34#include <sys/types.h>
35#include <sys/socket.h>
36#include <netinet/tcp.h>
37#include <netinet/in.h>
38#include <arpa/inet.h>
39#include <netdb.h>
40#include <fcntl.h>
41#include <errno.h>
42#include <signal.h>
43#include <stdarg.h>
44#include <sys/resource.h>
45#include <time.h>
46#include <syslog.h>
47
48#ifdef DEBUG_FULL
49#include <assert.h>
50#endif
51
Willy Tarreau2dd0d472006-06-29 17:53:05 +020052#include <common/appsession.h>
53#include <common/base64.h>
54#include <common/cfgparse.h>
55#include <common/compat.h>
56#include <common/config.h>
57#include <common/defaults.h>
Willy Tarreaud740bab2007-10-28 11:14:07 +010058#include <common/errors.h>
Willy Tarreau2dd0d472006-06-29 17:53:05 +020059#include <common/memory.h>
60#include <common/mini-clist.h>
61#include <common/regex.h>
62#include <common/standard.h>
63#include <common/time.h>
64#include <common/uri_auth.h>
65#include <common/version.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020066
67#include <types/capture.h>
68#include <types/global.h>
Simon Hormanac821422011-07-15 13:14:09 +090069#include <types/proto_tcp.h>
70#include <types/acl.h>
Willy Tarreau3c63fd82011-09-07 18:00:47 +020071#include <types/peers.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020072
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +010073#include <proto/auth.h>
Willy Tarreau0fc45a72007-06-17 00:36:03 +020074#include <proto/acl.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020075#include <proto/backend.h>
76#include <proto/buffers.h>
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +020077#include <proto/checks.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020078#include <proto/fd.h>
Willy Tarreau34eb6712011-10-24 18:15:04 +020079#include <proto/hdr_idx.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020080#include <proto/log.h>
Willy Tarreaudd815982007-10-16 12:25:14 +020081#include <proto/protocols.h>
Willy Tarreau80587432006-12-24 17:47:20 +010082#include <proto/proto_http.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020083#include <proto/proxy.h>
84#include <proto/queue.h>
85#include <proto/server.h>
Willy Tarreauc6ca1a02007-05-13 19:43:47 +020086#include <proto/session.h>
Willy Tarreau29857942009-05-10 09:01:21 +020087#include <proto/signal.h>
Willy Tarreaubaaee002006-06-26 02:48:02 +020088#include <proto/stream_sock.h>
89#include <proto/task.h>
90
Willy Tarreaub38651a2007-03-24 17:24:39 +010091#ifdef CONFIG_HAP_CTTPROXY
92#include <proto/cttproxy.h>
93#endif
94
Willy Tarreaubaaee002006-06-26 02:48:02 +020095/*********************************************************************/
96
97/*********************************************************************/
98
Willy Tarreau477ecd82010-01-03 21:12:30 +010099/* list of config files */
100static struct list cfg_cfgfiles = LIST_HEAD_INIT(cfg_cfgfiles);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200101int pid; /* current process id */
Willy Tarreau28156642007-11-26 16:13:36 +0100102int relative_pid = 1; /* process id starting at 1 */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200103
104/* global options */
105struct global global = {
William Lallemand0f99e342011-10-12 17:50:54 +0200106 .logsrvs = LIST_HEAD_INIT(global.logsrvs),
Willy Tarreau03f6d672007-10-18 15:15:57 +0200107 .stats_sock = {
Willy Tarreau03f6d672007-10-18 15:15:57 +0200108 .perm = {
109 .ux = {
110 .uid = -1,
111 .gid = -1,
112 .mode = 0,
113 }
114 }
Willy Tarreau27a674e2009-08-17 07:23:33 +0200115 },
Emeric Bruned760922010-10-22 17:59:25 +0200116 .unix_bind = {
117 .ux = {
118 .uid = -1,
119 .gid = -1,
120 .mode = 0,
121 }
122 },
Willy Tarreau27a674e2009-08-17 07:23:33 +0200123 .tune = {
124 .bufsize = BUFSIZE,
125 .maxrewrite = MAXREWRITE,
Willy Tarreau43961d52010-10-04 20:39:20 +0200126 .chksize = BUFSIZE,
Willy Tarreau27a674e2009-08-17 07:23:33 +0200127 },
Willy Tarreaubaaee002006-06-26 02:48:02 +0200128 /* others NULL OK */
129};
130
131/*********************************************************************/
132
133int stopping; /* non zero means stopping in progress */
Willy Tarreauaf7ad002010-08-31 15:39:26 +0200134int jobs = 0; /* number of active jobs (conns, listeners, active tasks, ...) */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200135
136/* Here we store informations about the pids of the processes we may pause
137 * or kill. We will send them a signal every 10 ms until we can bind to all
138 * our ports. With 200 retries, that's about 2 seconds.
139 */
140#define MAX_START_RETRIES 200
Willy Tarreaubaaee002006-06-26 02:48:02 +0200141static int *oldpids = NULL;
142static int oldpids_sig; /* use USR1 or TERM */
143
144/* this is used to drain data, and as a temporary buffer for sprintf()... */
145char trash[BUFSIZE];
146
Willy Tarreau8096de92010-02-26 11:12:27 +0100147/* this buffer is always the same size as standard buffers and is used for
148 * swapping data inside a buffer.
149 */
150char *swap_buffer = NULL;
151
Willy Tarreaubb545b42010-08-25 12:58:59 +0200152int nb_oldpids = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200153const int zero = 0;
154const int one = 1;
Alexandre Cassen87ea5482007-10-11 20:48:58 +0200155const struct linger nolinger = { .l_onoff = 1, .l_linger = 0 };
Willy Tarreaubaaee002006-06-26 02:48:02 +0200156
Willy Tarreau1d21e0a2010-03-12 21:58:54 +0100157char hostname[MAX_HOSTNAME_LEN];
Emeric Brun2b920a12010-09-23 18:30:22 +0200158char localpeer[MAX_HOSTNAME_LEN];
Willy Tarreaubaaee002006-06-26 02:48:02 +0200159
Willy Tarreau08ceb102011-07-24 22:58:00 +0200160/* list of the temporarily limited listeners because of lack of resource */
161struct list global_listener_queue = LIST_HEAD_INIT(global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +0200162struct task *global_listener_queue_task;
163static struct task *manage_global_listener_queue(struct task *t);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200164
165/*********************************************************************/
166/* general purpose functions ***************************************/
167/*********************************************************************/
168
169void display_version()
170{
171 printf("HA-Proxy version " HAPROXY_VERSION " " HAPROXY_DATE"\n");
Willy Tarreau9eeb57b2012-03-26 06:15:29 +0200172 printf("Copyright 2000-2012 Willy Tarreau <w@1wt.eu>\n\n");
Willy Tarreaubaaee002006-06-26 02:48:02 +0200173}
174
Willy Tarreau7b066db2007-12-02 11:28:59 +0100175void display_build_opts()
176{
177 printf("Build options :"
178#ifdef BUILD_TARGET
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100179 "\n TARGET = " BUILD_TARGET
Willy Tarreau7b066db2007-12-02 11:28:59 +0100180#endif
181#ifdef BUILD_CPU
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100182 "\n CPU = " BUILD_CPU
Willy Tarreau7b066db2007-12-02 11:28:59 +0100183#endif
184#ifdef BUILD_CC
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100185 "\n CC = " BUILD_CC
186#endif
187#ifdef BUILD_CFLAGS
188 "\n CFLAGS = " BUILD_CFLAGS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100189#endif
Willy Tarreau9f2b7302008-01-02 20:48:34 +0100190#ifdef BUILD_OPTIONS
191 "\n OPTIONS = " BUILD_OPTIONS
Willy Tarreau7b066db2007-12-02 11:28:59 +0100192#endif
Willy Tarreau27a674e2009-08-17 07:23:33 +0200193 "\n\nDefault settings :"
194 "\n maxconn = %d, bufsize = %d, maxrewrite = %d, maxpollevents = %d"
195 "\n\n",
196 DEFAULT_MAXCONN, BUFSIZE, MAXREWRITE, MAX_POLL_EVENTS);
Willy Tarreaube5b6852009-10-03 18:57:08 +0200197
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100198 printf("Encrypted password support via crypt(3): "
199#ifdef CONFIG_HAP_CRYPT
200 "yes"
201#else
202 "no"
203#endif
204 "\n");
205
206 putchar('\n');
207
Willy Tarreaube5b6852009-10-03 18:57:08 +0200208 list_pollers(stdout);
209 putchar('\n');
Willy Tarreau7b066db2007-12-02 11:28:59 +0100210}
211
Willy Tarreaubaaee002006-06-26 02:48:02 +0200212/*
213 * This function prints the command line usage and exits
214 */
215void usage(char *name)
216{
217 display_version();
218 fprintf(stderr,
Willy Tarreau5d01a632009-06-22 16:02:30 +0200219 "Usage : %s [-f <cfgfile>]* [ -vdV"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200220 "D ] [ -n <maxconn> ] [ -N <maxpconn> ]\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200221 " [ -p <pidfile> ] [ -m <max megs> ] [ -C <dir> ]\n"
Willy Tarreau7b066db2007-12-02 11:28:59 +0100222 " -v displays version ; -vv shows known build options.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200223 " -d enters debug mode ; -db only disables background mode.\n"
224 " -V enters verbose mode (disables quiet mode)\n"
Willy Tarreau576132e2011-09-10 19:26:56 +0200225 " -D goes daemon ; -C changes to <dir> before loading files.\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200226 " -q quiet mode : don't display messages\n"
Willy Tarreau5d01a632009-06-22 16:02:30 +0200227 " -c check mode : only check config files and exit\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200228 " -n sets the maximum total # of connections (%d)\n"
229 " -m limits the usable amount of memory (in MB)\n"
230 " -N sets the default, per-proxy maximum # of connections (%d)\n"
Emeric Brun2b920a12010-09-23 18:30:22 +0200231 " -L set local peer name (default to hostname)\n"
Willy Tarreaubaaee002006-06-26 02:48:02 +0200232 " -p writes pids of all children to this file\n"
233#if defined(ENABLE_EPOLL)
234 " -de disables epoll() usage even when available\n"
235#endif
Willy Tarreaude99e992007-04-16 00:53:59 +0200236#if defined(ENABLE_SEPOLL)
237 " -ds disables speculative epoll() usage even when available\n"
238#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200239#if defined(ENABLE_KQUEUE)
240 " -dk disables kqueue() usage even when available\n"
241#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200242#if defined(ENABLE_POLL)
243 " -dp disables poll() usage even when available\n"
244#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200245#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100246 " -dS disables splice usage (broken on old kernels)\n"
247#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200248 " -sf/-st [pid ]* finishes/terminates old pids. Must be last arguments.\n"
249 "\n",
250 name, DEFAULT_MAXCONN, cfg_maxpconn);
251 exit(1);
252}
253
254
255
256/*********************************************************************/
257/* more specific functions ***************************************/
258/*********************************************************************/
259
260/*
Willy Tarreaud0807c32010-08-27 18:26:11 +0200261 * upon SIGUSR1, let's have a soft stop. Note that soft_stop() broadcasts
262 * a signal zero to all subscribers. This means that it's as easy as
263 * subscribing to signal 0 to get informed about an imminent shutdown.
Willy Tarreaubaaee002006-06-26 02:48:02 +0200264 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200265void sig_soft_stop(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200266{
267 soft_stop();
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200268 signal_unregister_handler(sh);
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200269 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200270}
271
272/*
273 * upon SIGTTOU, we pause everything
274 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200275void sig_pause(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200276{
277 pause_proxies();
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200278 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200279}
280
281/*
282 * upon SIGTTIN, let's have a soft stop.
283 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200284void sig_listen(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200285{
Willy Tarreaube58c382011-07-24 18:28:10 +0200286 resume_proxies();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200287}
288
289/*
290 * this function dumps every server's state when the process receives SIGHUP.
291 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200292void sig_dump_state(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200293{
294 struct proxy *p = proxy;
295
296 Warning("SIGHUP received, dumping servers states.\n");
297 while (p) {
298 struct server *s = p->srv;
299
300 send_log(p, LOG_NOTICE, "SIGHUP received, dumping servers states for proxy %s.\n", p->id);
301 while (s) {
302 snprintf(trash, sizeof(trash),
Willy Tarreau3b88d442009-04-11 20:44:08 +0200303 "SIGHUP: Server %s/%s is %s. Conn: %d act, %d pend, %lld tot.",
Willy Tarreaubaaee002006-06-26 02:48:02 +0200304 p->id, s->id,
305 (s->state & SRV_RUNNING) ? "UP" : "DOWN",
Krzysztof Piotr Oledzki052d4fd2009-10-04 14:52:57 +0200306 s->cur_sess, s->nbpend, s->counters.cum_sess);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200307 Warning("%s\n", trash);
308 send_log(p, LOG_NOTICE, "%s\n", trash);
309 s = s->next;
310 }
311
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200312 /* FIXME: those info are a bit outdated. We should be able to distinguish between FE and BE. */
313 if (!p->srv) {
314 snprintf(trash, sizeof(trash),
Willy Tarreau3b88d442009-04-11 20:44:08 +0200315 "SIGHUP: Proxy %s has no servers. Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
Willy Tarreau5fcc8f12007-09-17 11:27:09 +0200316 p->id,
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100317 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 +0200318 } else if (p->srv_act == 0) {
Willy Tarreaubaaee002006-06-26 02:48:02 +0200319 snprintf(trash, sizeof(trash),
Willy Tarreau3b88d442009-04-11 20:44:08 +0200320 "SIGHUP: Proxy %s %s ! Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
Willy Tarreaubaaee002006-06-26 02:48:02 +0200321 p->id,
322 (p->srv_bck) ? "is running on backup servers" : "has no server available",
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100323 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 +0200324 } else {
325 snprintf(trash, sizeof(trash),
326 "SIGHUP: Proxy %s has %d active servers and %d backup servers available."
Willy Tarreau3b88d442009-04-11 20:44:08 +0200327 " Conn: act(FE+BE): %d+%d, %d pend (%d unass), tot(FE+BE): %lld+%lld.",
Willy Tarreaubaaee002006-06-26 02:48:02 +0200328 p->id, p->srv_act, p->srv_bck,
Willy Tarreau7d0aaf32011-03-10 23:25:56 +0100329 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 +0200330 }
331 Warning("%s\n", trash);
332 send_log(p, LOG_NOTICE, "%s\n", trash);
333
334 p = p->next;
335 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200336}
337
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200338void dump(struct sig_handler *sh)
Willy Tarreaubaaee002006-06-26 02:48:02 +0200339{
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200340 /* dump memory usage then free everything possible */
341 dump_pools();
342 pool_gc2();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200343}
344
Willy Tarreaubaaee002006-06-26 02:48:02 +0200345/*
346 * This function initializes all the necessary variables. It only returns
347 * if everything is OK. If something fails, it exits.
348 */
349void init(int argc, char **argv)
350{
351 int i;
352 int arg_mode = 0; /* MODE_DEBUG, ... */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200353 char *tmp;
354 char *cfg_pidfile = NULL;
Willy Tarreau058e9072009-07-20 09:30:05 +0200355 int err_code = 0;
Willy Tarreau477ecd82010-01-03 21:12:30 +0100356 struct wordlist *wl;
Kevinm48936af2010-12-22 16:08:21 +0000357 char *progname;
Willy Tarreau576132e2011-09-10 19:26:56 +0200358 char *change_dir = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200359
Emeric Brun2b920a12010-09-23 18:30:22 +0200360 /* NB: POSIX does not make it mandatory for gethostname() to NULL-terminate
361 * the string in case of truncation, and at least FreeBSD appears not to do
362 * it.
363 */
364 memset(hostname, 0, sizeof(hostname));
365 gethostname(hostname, sizeof(hostname) - 1);
366 memset(localpeer, 0, sizeof(localpeer));
367 memcpy(localpeer, hostname, (sizeof(hostname) > sizeof(localpeer) ? sizeof(localpeer) : sizeof(hostname)) - 1);
368
Willy Tarreaubaaee002006-06-26 02:48:02 +0200369 /*
370 * Initialize the previously static variables.
371 */
372
Willy Tarreau3eba98a2009-01-25 13:56:13 +0100373 totalconn = actconn = maxfd = listeners = stopping = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200374
375
376#ifdef HAPROXY_MEMMAX
377 global.rlimit_memmax = HAPROXY_MEMMAX;
378#endif
379
Willy Tarreaub0b37bc2008-06-23 14:00:57 +0200380 tv_update_date(-1,-1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200381 start_date = now;
382
Willy Tarreau29857942009-05-10 09:01:21 +0200383 signal_init();
Willy Tarreauc6ca1a02007-05-13 19:43:47 +0200384 init_task();
385 init_session();
Willy Tarreau8280d642009-09-23 23:37:52 +0200386 /* warning, we init buffers later */
Willy Tarreaue4d7e552007-05-13 20:19:55 +0200387 init_pendconn();
Willy Tarreau80587432006-12-24 17:47:20 +0100388 init_proto_http();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200389
Willy Tarreau43b78992009-01-25 15:42:27 +0100390 global.tune.options |= GTUNE_USE_SELECT; /* select() is always available */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200391#if defined(ENABLE_POLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100392 global.tune.options |= GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200393#endif
394#if defined(ENABLE_EPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100395 global.tune.options |= GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200396#endif
Willy Tarreaude99e992007-04-16 00:53:59 +0200397#if defined(ENABLE_SEPOLL)
Willy Tarreau43b78992009-01-25 15:42:27 +0100398 global.tune.options |= GTUNE_USE_SEPOLL;
Willy Tarreaude99e992007-04-16 00:53:59 +0200399#endif
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200400#if defined(ENABLE_KQUEUE)
Willy Tarreau43b78992009-01-25 15:42:27 +0100401 global.tune.options |= GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200402#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200403#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100404 global.tune.options |= GTUNE_USE_SPLICE;
405#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200406
407 pid = getpid();
408 progname = *argv;
409 while ((tmp = strchr(progname, '/')) != NULL)
410 progname = tmp + 1;
411
Kevinm48936af2010-12-22 16:08:21 +0000412 /* the process name is used for the logs only */
413 global.log_tag = strdup(progname);
414
Willy Tarreaubaaee002006-06-26 02:48:02 +0200415 argc--; argv++;
416 while (argc > 0) {
417 char *flag;
418
419 if (**argv == '-') {
420 flag = *argv+1;
421
422 /* 1 arg */
423 if (*flag == 'v') {
424 display_version();
Willy Tarreau7b066db2007-12-02 11:28:59 +0100425 if (flag[1] == 'v') /* -vv */
426 display_build_opts();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200427 exit(0);
428 }
429#if defined(ENABLE_EPOLL)
430 else if (*flag == 'd' && flag[1] == 'e')
Willy Tarreau43b78992009-01-25 15:42:27 +0100431 global.tune.options &= ~GTUNE_USE_EPOLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200432#endif
Willy Tarreaude99e992007-04-16 00:53:59 +0200433#if defined(ENABLE_SEPOLL)
434 else if (*flag == 'd' && flag[1] == 's')
Willy Tarreau43b78992009-01-25 15:42:27 +0100435 global.tune.options &= ~GTUNE_USE_SEPOLL;
Willy Tarreaude99e992007-04-16 00:53:59 +0200436#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200437#if defined(ENABLE_POLL)
438 else if (*flag == 'd' && flag[1] == 'p')
Willy Tarreau43b78992009-01-25 15:42:27 +0100439 global.tune.options &= ~GTUNE_USE_POLL;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200440#endif
Willy Tarreau69cad1a2007-04-10 22:45:11 +0200441#if defined(ENABLE_KQUEUE)
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200442 else if (*flag == 'd' && flag[1] == 'k')
Willy Tarreau43b78992009-01-25 15:42:27 +0100443 global.tune.options &= ~GTUNE_USE_KQUEUE;
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200444#endif
Willy Tarreaub55932d2009-08-16 13:20:32 +0200445#if defined(CONFIG_HAP_LINUX_SPLICE)
Willy Tarreau3ab68cf2009-01-25 16:03:28 +0100446 else if (*flag == 'd' && flag[1] == 'S')
447 global.tune.options &= ~GTUNE_USE_SPLICE;
448#endif
Willy Tarreaubaaee002006-06-26 02:48:02 +0200449 else if (*flag == 'V')
450 arg_mode |= MODE_VERBOSE;
451 else if (*flag == 'd' && flag[1] == 'b')
452 arg_mode |= MODE_FOREGROUND;
453 else if (*flag == 'd')
454 arg_mode |= MODE_DEBUG;
455 else if (*flag == 'c')
456 arg_mode |= MODE_CHECK;
457 else if (*flag == 'D')
Willy Tarreau6bde87b2009-05-18 16:29:51 +0200458 arg_mode |= MODE_DAEMON;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200459 else if (*flag == 'q')
460 arg_mode |= MODE_QUIET;
461 else if (*flag == 's' && (flag[1] == 'f' || flag[1] == 't')) {
462 /* list of pids to finish ('f') or terminate ('t') */
463
464 if (flag[1] == 'f')
465 oldpids_sig = SIGUSR1; /* finish then exit */
466 else
467 oldpids_sig = SIGTERM; /* terminate immediately */
468 argv++; argc--;
469
470 if (argc > 0) {
471 oldpids = calloc(argc, sizeof(int));
472 while (argc > 0) {
473 oldpids[nb_oldpids] = atol(*argv);
474 if (oldpids[nb_oldpids] <= 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200475 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200476 argc--; argv++;
477 nb_oldpids++;
478 }
479 }
480 }
481 else { /* >=2 args */
482 argv++; argc--;
483 if (argc == 0)
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200484 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200485
486 switch (*flag) {
Willy Tarreau576132e2011-09-10 19:26:56 +0200487 case 'C' : change_dir = *argv; break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200488 case 'n' : cfg_maxconn = atol(*argv); break;
489 case 'm' : global.rlimit_memmax = atol(*argv); break;
490 case 'N' : cfg_maxpconn = atol(*argv); break;
Emeric Brun2b920a12010-09-23 18:30:22 +0200491 case 'L' : strncpy(localpeer, *argv, sizeof(localpeer) - 1); break;
Willy Tarreau5d01a632009-06-22 16:02:30 +0200492 case 'f' :
Willy Tarreau477ecd82010-01-03 21:12:30 +0100493 wl = (struct wordlist *)calloc(1, sizeof(*wl));
494 if (!wl) {
495 Alert("Cannot load configuration file %s : out of memory.\n", *argv);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200496 exit(1);
497 }
Willy Tarreau477ecd82010-01-03 21:12:30 +0100498 wl->s = *argv;
499 LIST_ADDQ(&cfg_cfgfiles, &wl->list);
Willy Tarreau5d01a632009-06-22 16:02:30 +0200500 break;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200501 case 'p' : cfg_pidfile = *argv; break;
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200502 default: usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200503 }
504 }
505 }
506 else
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200507 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200508 argv++; argc--;
509 }
510
511 global.mode = MODE_STARTING | /* during startup, we want most of the alerts */
512 (arg_mode & (MODE_DAEMON | MODE_FOREGROUND | MODE_VERBOSE
513 | MODE_QUIET | MODE_CHECK | MODE_DEBUG));
514
Willy Tarreau477ecd82010-01-03 21:12:30 +0100515 if (LIST_ISEMPTY(&cfg_cfgfiles))
Willy Tarreau3bafcdc2011-09-10 19:20:23 +0200516 usage(progname);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200517
Willy Tarreau576132e2011-09-10 19:26:56 +0200518 if (change_dir && chdir(change_dir) < 0) {
519 Alert("Could not change to directory %s : %s\n", change_dir, strerror(errno));
520 exit(1);
521 }
522
Willy Tarreaubaaee002006-06-26 02:48:02 +0200523 have_appsession = 0;
524 global.maxsock = 10; /* reserve 10 fds ; will be incremented by socket eaters */
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200525
526 init_default_instance();
527
Willy Tarreau477ecd82010-01-03 21:12:30 +0100528 list_for_each_entry(wl, &cfg_cfgfiles, list) {
Willy Tarreauc4382422009-12-06 13:10:44 +0100529 int ret;
530
Willy Tarreau477ecd82010-01-03 21:12:30 +0100531 ret = readcfgfile(wl->s);
Willy Tarreauc4382422009-12-06 13:10:44 +0100532 if (ret == -1) {
533 Alert("Could not open configuration file %s : %s\n",
Willy Tarreau477ecd82010-01-03 21:12:30 +0100534 wl->s, strerror(errno));
Willy Tarreauc4382422009-12-06 13:10:44 +0100535 exit(1);
536 }
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100537 if (ret & (ERR_ABORT|ERR_FATAL))
Willy Tarreau477ecd82010-01-03 21:12:30 +0100538 Alert("Error(s) found in configuration file : %s\n", wl->s);
Willy Tarreau25a67fa2009-12-15 21:46:25 +0100539 err_code |= ret;
Willy Tarreau058e9072009-07-20 09:30:05 +0200540 if (err_code & ERR_ABORT)
Willy Tarreau5d01a632009-06-22 16:02:30 +0200541 exit(1);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200542 }
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200543
Willy Tarreaubb925012009-07-23 13:36:36 +0200544 err_code |= check_config_validity();
545 if (err_code & (ERR_ABORT|ERR_FATAL)) {
546 Alert("Fatal errors found in configuration.\n");
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200547 exit(1);
548 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200549
550 if (global.mode & MODE_CHECK) {
Willy Tarreau8b15ba12012-02-02 17:48:18 +0100551 struct peers *pr;
552 struct proxy *px;
553
554 for (pr = peers; pr; pr = pr->next)
555 if (pr->peers_fe)
556 break;
557
558 for (px = proxy; px; px = px->next)
559 if (px->state == PR_STNEW && px->listen)
560 break;
561
562 if (pr || px) {
563 /* At least one peer or one listener has been found */
564 qfprintf(stdout, "Configuration file is valid\n");
565 exit(0);
566 }
567 qfprintf(stdout, "Configuration file has no error but will not start (no listener) => exit(2).\n");
568 exit(2);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200569 }
570
Willy Tarreaue9b26022011-08-01 20:57:55 +0200571 global_listener_queue_task = task_new();
572 if (!global_listener_queue_task) {
573 Alert("Out of memory when initializing global task\n");
574 exit(1);
575 }
576 /* very simple initialization, users will queue the task if needed */
577 global_listener_queue_task->context = NULL; /* not even a context! */
578 global_listener_queue_task->process = manage_global_listener_queue;
579 global_listener_queue_task->expire = TICK_ETERNITY;
580
Willy Tarreau8280d642009-09-23 23:37:52 +0200581 /* now we know the buffer size, we can initialize the buffers */
582 init_buffer();
583
Willy Tarreau915e1eb2009-06-22 15:48:36 +0200584 if (have_appsession)
585 appsession_init();
586
Krzysztof Oledzkib304dc72007-10-14 23:40:01 +0200587 if (start_checks() < 0)
588 exit(1);
589
Willy Tarreaubaaee002006-06-26 02:48:02 +0200590 if (cfg_maxconn > 0)
591 global.maxconn = cfg_maxconn;
592
593 if (cfg_pidfile) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200594 free(global.pidfile);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200595 global.pidfile = strdup(cfg_pidfile);
596 }
597
598 if (global.maxconn == 0)
599 global.maxconn = DEFAULT_MAXCONN;
600
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100601 if (!global.maxpipes) {
602 /* maxpipes not specified. Count how many frontends and backends
603 * may be using splicing, and bound that to maxconn.
604 */
605 struct proxy *cur;
606 int nbfe = 0, nbbe = 0;
607
608 for (cur = proxy; cur; cur = cur->next) {
609 if (cur->options2 & (PR_O2_SPLIC_ANY)) {
610 if (cur->cap & PR_CAP_FE)
611 nbfe += cur->maxconn;
612 if (cur->cap & PR_CAP_BE)
Willy Tarreauafb48762009-01-25 10:42:05 +0100613 nbbe += cur->fullconn ? cur->fullconn : global.maxconn;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100614 }
615 }
616 global.maxpipes = MAX(nbfe, nbbe);
617 if (global.maxpipes > global.maxconn)
618 global.maxpipes = global.maxconn;
Willy Tarreau686ac822009-01-25 14:06:58 +0100619 global.maxpipes /= 4;
Willy Tarreau66aa61f2009-01-18 21:44:07 +0100620 }
621
622
Willy Tarreauabacc2c2011-09-07 14:26:33 +0200623 global.hardmaxconn = global.maxconn; /* keep this max value */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200624 global.maxsock += global.maxconn * 2; /* each connection needs two sockets */
Willy Tarreau3ec79b92009-01-18 20:39:42 +0100625 global.maxsock += global.maxpipes * 2; /* each pipe needs two FDs */
Willy Tarreaubaaee002006-06-26 02:48:02 +0200626
Willy Tarreau3c63fd82011-09-07 18:00:47 +0200627 if (global.stats_fe)
628 global.maxsock += global.stats_fe->maxconn;
629
630 if (peers) {
631 /* peers also need to bypass global maxconn */
632 struct peers *p = peers;
633
634 for (p = peers; p; p = p->next)
635 if (p->peers_fe)
636 global.maxsock += p->peers_fe->maxconn;
637 }
638
Willy Tarreau1db37712007-06-03 17:16:49 +0200639 if (global.tune.maxpollevents <= 0)
640 global.tune.maxpollevents = MAX_POLL_EVENTS;
641
Willy Tarreauf49d1df2009-03-01 08:35:41 +0100642 if (global.tune.maxaccept == 0) {
Willy Tarreau4827fd22011-07-22 21:59:59 +0200643 /* Note: we should not try to accept too many connections at once,
644 * because past one point we're significantly reducing the cache
645 * efficiency and the highest session rate significantly drops.
646 * Values between 15 and 35 seem fine on a Core i5 with 4M L3 cache.
647 */
Willy Tarreaua0250ba2008-01-06 11:22:57 +0100648 if (global.nbproc > 1)
649 global.tune.maxaccept = 8; /* leave some conns to other processes */
650 else
Willy Tarreau4827fd22011-07-22 21:59:59 +0200651 global.tune.maxaccept = 32; /* accept more incoming conns at once */
Willy Tarreaua0250ba2008-01-06 11:22:57 +0100652 }
653
Willy Tarreau6f4a82c2009-03-21 20:43:57 +0100654 if (global.tune.recv_enough == 0)
655 global.tune.recv_enough = MIN_RECV_AT_ONCE_ENOUGH;
656
Willy Tarreau27a674e2009-08-17 07:23:33 +0200657 if (global.tune.maxrewrite >= global.tune.bufsize / 2)
658 global.tune.maxrewrite = global.tune.bufsize / 2;
659
Willy Tarreaubaaee002006-06-26 02:48:02 +0200660 if (arg_mode & (MODE_DEBUG | MODE_FOREGROUND)) {
661 /* command line debug mode inhibits configuration mode */
662 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
663 }
664 global.mode |= (arg_mode & (MODE_DAEMON | MODE_FOREGROUND | MODE_QUIET |
Willy Tarreaufbee7132007-10-18 13:53:22 +0200665 MODE_VERBOSE | MODE_DEBUG ));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200666
667 if ((global.mode & MODE_DEBUG) && (global.mode & (MODE_DAEMON | MODE_QUIET))) {
668 Warning("<debug> mode incompatible with <quiet> and <daemon>. Keeping <debug> only.\n");
669 global.mode &= ~(MODE_DAEMON | MODE_QUIET);
670 }
671
672 if ((global.nbproc > 1) && !(global.mode & MODE_DAEMON)) {
673 if (!(global.mode & (MODE_FOREGROUND | MODE_DEBUG)))
674 Warning("<nbproc> is only meaningful in daemon mode. Setting limit to 1 process.\n");
675 global.nbproc = 1;
676 }
677
678 if (global.nbproc < 1)
679 global.nbproc = 1;
680
Willy Tarreau8096de92010-02-26 11:12:27 +0100681 swap_buffer = (char *)calloc(1, global.tune.bufsize);
682
Willy Tarreau8d5d77e2009-10-18 07:25:52 +0200683 fdinfo = (struct fdinfo *)calloc(1,
684 sizeof(struct fdinfo) * (global.maxsock));
Willy Tarreaubaaee002006-06-26 02:48:02 +0200685 fdtab = (struct fdtab *)calloc(1,
686 sizeof(struct fdtab) * (global.maxsock));
687 for (i = 0; i < global.maxsock; i++) {
688 fdtab[i].state = FD_STCLOSE;
689 }
Willy Tarreau4f60f162007-04-08 16:39:58 +0200690
Willy Tarreauef1d1f82007-04-16 00:25:25 +0200691 /*
692 * Note: we could register external pollers here.
693 * Built-in pollers have been registered before main().
694 */
Willy Tarreau4f60f162007-04-08 16:39:58 +0200695
Willy Tarreau43b78992009-01-25 15:42:27 +0100696 if (!(global.tune.options & GTUNE_USE_KQUEUE))
Willy Tarreau1e63130a2007-04-09 12:03:06 +0200697 disable_poller("kqueue");
698
Willy Tarreau43b78992009-01-25 15:42:27 +0100699 if (!(global.tune.options & GTUNE_USE_EPOLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200700 disable_poller("epoll");
701
Willy Tarreau43b78992009-01-25 15:42:27 +0100702 if (!(global.tune.options & GTUNE_USE_SEPOLL))
Willy Tarreaude99e992007-04-16 00:53:59 +0200703 disable_poller("sepoll");
704
Willy Tarreau43b78992009-01-25 15:42:27 +0100705 if (!(global.tune.options & GTUNE_USE_POLL))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200706 disable_poller("poll");
707
Willy Tarreau43b78992009-01-25 15:42:27 +0100708 if (!(global.tune.options & GTUNE_USE_SELECT))
Willy Tarreau4f60f162007-04-08 16:39:58 +0200709 disable_poller("select");
710
711 /* Note: we could disable any poller by name here */
712
Willy Tarreau2ff76222007-04-09 19:29:56 +0200713 if (global.mode & (MODE_VERBOSE|MODE_DEBUG))
714 list_pollers(stderr);
715
Willy Tarreau4f60f162007-04-08 16:39:58 +0200716 if (!init_pollers()) {
Willy Tarreau2ff76222007-04-09 19:29:56 +0200717 Alert("No polling mechanism available.\n");
Willy Tarreau4f60f162007-04-08 16:39:58 +0200718 exit(1);
719 }
Willy Tarreau2ff76222007-04-09 19:29:56 +0200720 if (global.mode & (MODE_VERBOSE|MODE_DEBUG)) {
721 printf("Using %s() as the polling mechanism.\n", cur_poller.name);
Willy Tarreau4f60f162007-04-08 16:39:58 +0200722 }
723
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +0200724 if (!global.node)
725 global.node = strdup(hostname);
726
Willy Tarreaubaaee002006-06-26 02:48:02 +0200727}
728
Simon Horman6fb82592011-07-15 13:14:11 +0900729static void deinit_acl_cond(struct acl_cond *cond)
Simon Hormanac821422011-07-15 13:14:09 +0900730{
Simon Hormanac821422011-07-15 13:14:09 +0900731 struct acl_term_suite *suite, *suiteb;
732 struct acl_term *term, *termb;
733
Simon Horman6fb82592011-07-15 13:14:11 +0900734 if (!cond)
735 return;
736
737 list_for_each_entry_safe(suite, suiteb, &cond->suites, list) {
738 list_for_each_entry_safe(term, termb, &suite->terms, list) {
739 LIST_DEL(&term->list);
740 free(term);
Simon Hormanac821422011-07-15 13:14:09 +0900741 }
Simon Horman6fb82592011-07-15 13:14:11 +0900742 LIST_DEL(&suite->list);
743 free(suite);
744 }
745
746 free(cond);
747}
748
749static void deinit_tcp_rules(struct list *rules)
750{
751 struct tcp_rule *trule, *truleb;
752
753 list_for_each_entry_safe(trule, truleb, rules, list) {
Simon Hormanac821422011-07-15 13:14:09 +0900754 LIST_DEL(&trule->list);
Simon Horman6fb82592011-07-15 13:14:11 +0900755 deinit_acl_cond(trule->cond);
Simon Hormanac821422011-07-15 13:14:09 +0900756 free(trule);
757 }
758}
759
Simon Horman6fb82592011-07-15 13:14:11 +0900760static void deinit_pattern_arg(struct pattern_arg *p, int i)
761{
762 if (!p)
763 return;
764
765 while (i--)
766 if (p[i].type == PATTERN_ARG_TYPE_STRING)
767 free(p[i].data.str.str);
768
769 free(p);
770}
771
772static void deinit_stick_rules(struct list *rules)
773{
774 struct sticking_rule *rule, *ruleb;
775
776 list_for_each_entry_safe(rule, ruleb, rules, list) {
777 LIST_DEL(&rule->list);
778 deinit_acl_cond(rule->cond);
779 if (rule->expr) {
780 struct pattern_conv_expr *conv_expr, *conv_exprb;
781 list_for_each_entry_safe(conv_expr, conv_exprb, &rule->expr->conv_exprs, list)
782 deinit_pattern_arg(conv_expr->arg_p, conv_expr->arg_i);
783 deinit_pattern_arg(rule->expr->arg_p, rule->expr->arg_i);
784 free(rule->expr);
785 }
786 free(rule);
787 }
788}
789
Willy Tarreaubaaee002006-06-26 02:48:02 +0200790void deinit(void)
791{
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200792 struct proxy *p = proxy, *p0;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200793 struct cap_hdr *h,*h_next;
794 struct server *s,*s_next;
795 struct listener *l,*l_next;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200796 struct acl_cond *cond, *condb;
797 struct hdr_exp *exp, *expb;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200798 struct acl *acl, *aclb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200799 struct switching_rule *rule, *ruleb;
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200800 struct redirect_rule *rdr, *rdrb;
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100801 struct wordlist *wl, *wlb;
Willy Tarreauf4f04122010-01-28 18:10:50 +0100802 struct cond_wordlist *cwl, *cwlb;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200803 struct uri_auth *uap, *ua = NULL;
William Lallemand0f99e342011-10-12 17:50:54 +0200804 struct logsrv *log, *logb;
William Lallemand723b73a2012-02-08 16:37:49 +0100805 struct logformat_node *lf, *lfb;
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200806 int i;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200807
Willy Tarreau24f4efa2010-08-27 17:56:48 +0200808 deinit_signals();
Willy Tarreaubaaee002006-06-26 02:48:02 +0200809 while (p) {
Willy Tarreaua534fea2008-08-03 12:19:50 +0200810 free(p->id);
811 free(p->check_req);
812 free(p->cookie_name);
813 free(p->cookie_domain);
814 free(p->url_param_name);
815 free(p->capture_name);
816 free(p->monitor_uri);
Simon Hormana31c7f72011-07-15 13:14:08 +0900817 free(p->rdp_cookie_name);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200818
Willy Tarreaua534fea2008-08-03 12:19:50 +0200819 for (i = 0; i < HTTP_ERR_SIZE; i++)
Krzysztof Piotr Oledzki78abe612009-09-27 13:23:20 +0200820 chunk_destroy(&p->errmsg[i]);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200821
Willy Tarreauf4f04122010-01-28 18:10:50 +0100822 list_for_each_entry_safe(cwl, cwlb, &p->req_add, list) {
823 LIST_DEL(&cwl->list);
824 free(cwl->s);
825 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100826 }
Willy Tarreaubaaee002006-06-26 02:48:02 +0200827
Willy Tarreauf4f04122010-01-28 18:10:50 +0100828 list_for_each_entry_safe(cwl, cwlb, &p->rsp_add, list) {
829 LIST_DEL(&cwl->list);
830 free(cwl->s);
831 free(cwl);
Willy Tarreaudeb9ed82010-01-03 21:03:22 +0100832 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200833
834 list_for_each_entry_safe(cond, condb, &p->block_cond, list) {
835 LIST_DEL(&cond->list);
836 prune_acl_cond(cond);
837 free(cond);
838 }
839
Willy Tarreaub80c2302007-11-30 20:51:32 +0100840 list_for_each_entry_safe(cond, condb, &p->mon_fail_cond, list) {
841 LIST_DEL(&cond->list);
842 prune_acl_cond(cond);
843 free(cond);
844 }
845
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200846 for (exp = p->req_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200847 if (exp->preg) {
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200848 regfree((regex_t *)exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200849 free((regex_t *)exp->preg);
850 }
851
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200852 if (exp->replace && exp->action != ACT_SETBE)
853 free((char *)exp->replace);
854 expb = exp;
855 exp = exp->next;
856 free(expb);
857 }
858
859 for (exp = p->rsp_exp; exp != NULL; ) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200860 if (exp->preg) {
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200861 regfree((regex_t *)exp->preg);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200862 free((regex_t *)exp->preg);
863 }
864
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200865 if (exp->replace && exp->action != ACT_SETBE)
866 free((char *)exp->replace);
867 expb = exp;
868 exp = exp->next;
869 free(expb);
870 }
871
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200872 /* build a list of unique uri_auths */
873 if (!ua)
874 ua = p->uri_auth;
875 else {
876 /* check if p->uri_auth is unique */
877 for (uap = ua; uap; uap=uap->next)
878 if (uap == p->uri_auth)
879 break;
880
Willy Tarreauaccc4e12008-06-24 11:14:45 +0200881 if (!uap && p->uri_auth) {
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200882 /* add it, if it is */
883 p->uri_auth->next = ua;
884 ua = p->uri_auth;
885 }
886 }
Willy Tarreau0fc45a72007-06-17 00:36:03 +0200887
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200888 list_for_each_entry_safe(acl, aclb, &p->acl, list) {
889 LIST_DEL(&acl->list);
890 prune_acl(acl);
891 free(acl);
892 }
893
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200894 list_for_each_entry_safe(rule, ruleb, &p->switching_rules, list) {
895 LIST_DEL(&rule->list);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200896 prune_acl_cond(rule->cond);
897 free(rule->cond);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200898 free(rule);
899 }
900
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200901 list_for_each_entry_safe(rdr, rdrb, &p->redirect_rules, list) {
902 LIST_DEL(&rdr->list);
Willy Tarreauf285f542010-01-03 20:03:03 +0100903 if (rdr->cond) {
904 prune_acl_cond(rdr->cond);
905 free(rdr->cond);
906 }
Willy Tarreaub463dfb2008-06-07 23:08:56 +0200907 free(rdr->rdr_str);
908 free(rdr);
909 }
910
William Lallemand0f99e342011-10-12 17:50:54 +0200911 list_for_each_entry_safe(log, logb, &p->logsrvs, list) {
912 LIST_DEL(&log->list);
913 free(log);
914 }
915
William Lallemand723b73a2012-02-08 16:37:49 +0100916 list_for_each_entry_safe(lf, lfb, &p->logformat, list) {
917 LIST_DEL(&lf->list);
918 free(lf);
919 }
920
Simon Hormanac821422011-07-15 13:14:09 +0900921 deinit_tcp_rules(&p->tcp_req.inspect_rules);
922 deinit_tcp_rules(&p->tcp_req.l4_rules);
923
Simon Horman6fb82592011-07-15 13:14:11 +0900924 deinit_stick_rules(&p->storersp_rules);
925 deinit_stick_rules(&p->sticking_rules);
926
Willy Tarreaua534fea2008-08-03 12:19:50 +0200927 free(p->appsession_name);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200928
929 h = p->req_cap;
930 while (h) {
931 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +0200932 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200933 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200934 free(h);
935 h = h_next;
936 }/* end while(h) */
937
938 h = p->rsp_cap;
939 while (h) {
940 h_next = h->next;
Willy Tarreaua534fea2008-08-03 12:19:50 +0200941 free(h->name);
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200942 pool_destroy2(h->pool);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200943 free(h);
944 h = h_next;
945 }/* end while(h) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200946
Willy Tarreaubaaee002006-06-26 02:48:02 +0200947 s = p->srv;
948 while (s) {
949 s_next = s->next;
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200950
951 if (s->check) {
952 task_delete(s->check);
953 task_free(s->check);
954 }
955
Willy Tarreau2e993902011-10-31 11:53:20 +0100956 if (s->warmup) {
957 task_delete(s->warmup);
958 task_free(s->warmup);
959 }
960
Willy Tarreaua534fea2008-08-03 12:19:50 +0200961 free(s->id);
962 free(s->cookie);
Nick Chalk57b1bf72010-03-16 15:50:46 +0000963 free(s->check_data);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200964 free(s);
965 s = s_next;
966 }/* end while(s) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200967
Willy Tarreaubaaee002006-06-26 02:48:02 +0200968 l = p->listen;
969 while (l) {
970 l_next = l->next;
Willy Tarreauf6e2cc72010-09-03 10:38:17 +0200971 unbind_listener(l);
972 delete_listener(l);
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +0100973 free(l->name);
974 free(l->counters);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200975 free(l);
976 l = l_next;
977 }/* end while(l) */
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +0200978
Krzysztof Piotr Oledzkiaff01ea2010-02-05 20:31:44 +0100979 free(p->desc);
980 free(p->fwdfor_hdr_name);
981
Willy Tarreauff011f22011-01-06 17:51:27 +0100982 free_http_req_rules(&p->http_req_rules);
Willy Tarreau918ff602011-07-25 16:33:49 +0200983 free(p->task);
Krzysztof Piotr Oledzki59bb2182010-01-29 17:58:21 +0100984
Willy Tarreaucf7f3202007-05-13 22:46:04 +0200985 pool_destroy2(p->req_cap_pool);
986 pool_destroy2(p->rsp_cap_pool);
Simon Hormanb08584a2011-07-15 13:14:10 +0900987 pool_destroy2(p->table.pool);
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +0100988
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200989 p0 = p;
Willy Tarreaubaaee002006-06-26 02:48:02 +0200990 p = p->next;
Willy Tarreau4d2d0982007-05-14 00:39:29 +0200991 free(p0);
Willy Tarreaubaaee002006-06-26 02:48:02 +0200992 }/* end while(p) */
Willy Tarreaudd815982007-10-16 12:25:14 +0200993
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +0200994 while (ua) {
995 uap = ua;
996 ua = ua->next;
997
Willy Tarreaua534fea2008-08-03 12:19:50 +0200998 free(uap->uri_prefix);
999 free(uap->auth_realm);
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001000 free(uap->node);
1001 free(uap->desc);
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001002
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001003 userlist_free(uap->userlist);
Willy Tarreauff011f22011-01-06 17:51:27 +01001004 free_http_req_rules(&uap->http_req_rules);
Krzysztof Piotr Oledzki8c8bd452010-01-29 19:29:32 +01001005
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001006 free(uap);
1007 }
1008
Krzysztof Piotr Oledzki96105042010-01-29 17:50:44 +01001009 userlist_free(userlist);
1010
Willy Tarreaudd815982007-10-16 12:25:14 +02001011 protocol_unbind_all();
1012
Joe Williamsdf5b38f2010-12-29 17:05:48 +01001013 free(global.log_send_hostname); global.log_send_hostname = NULL;
Kevinm48936af2010-12-22 16:08:21 +00001014 free(global.log_tag); global.log_tag = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001015 free(global.chroot); global.chroot = NULL;
1016 free(global.pidfile); global.pidfile = NULL;
Krzysztof Piotr Oledzki48cb2ae2009-10-02 22:51:14 +02001017 free(global.node); global.node = NULL;
1018 free(global.desc); global.desc = NULL;
Willy Tarreaua534fea2008-08-03 12:19:50 +02001019 free(fdtab); fdtab = NULL;
1020 free(oldpids); oldpids = NULL;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001021 free(global_listener_queue_task); global_listener_queue_task = NULL;
Krzysztof Piotr Oledzki8001d612008-05-31 13:53:23 +02001022
William Lallemand0f99e342011-10-12 17:50:54 +02001023 list_for_each_entry_safe(log, logb, &global.logsrvs, list) {
1024 LIST_DEL(&log->list);
1025 free(log);
1026 }
Willy Tarreau477ecd82010-01-03 21:12:30 +01001027 list_for_each_entry_safe(wl, wlb, &cfg_cfgfiles, list) {
1028 LIST_DEL(&wl->list);
1029 free(wl);
1030 }
1031
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001032 pool_destroy2(pool2_session);
Willy Tarreau7341d942007-05-13 19:56:02 +02001033 pool_destroy2(pool2_buffer);
Willy Tarreau332f8bf2007-05-13 21:36:56 +02001034 pool_destroy2(pool2_requri);
Willy Tarreauc6ca1a02007-05-13 19:43:47 +02001035 pool_destroy2(pool2_task);
Willy Tarreau086b3b42007-05-13 21:45:51 +02001036 pool_destroy2(pool2_capture);
Willy Tarreau63963c62007-05-13 21:29:55 +02001037 pool_destroy2(pool2_appsess);
Willy Tarreaue4d7e552007-05-13 20:19:55 +02001038 pool_destroy2(pool2_pendconn);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001039 pool_destroy2(pool2_sig_handlers);
Willy Tarreau34eb6712011-10-24 18:15:04 +02001040 pool_destroy2(pool2_hdr_idx);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001041
1042 if (have_appsession) {
Willy Tarreau63963c62007-05-13 21:29:55 +02001043 pool_destroy2(apools.serverid);
1044 pool_destroy2(apools.sessid);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001045 }
Krzysztof Piotr Oledzkia643baf2008-05-29 23:53:44 +02001046
1047 deinit_pollers();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001048} /* end deinit() */
1049
Willy Tarreaubb545b42010-08-25 12:58:59 +02001050/* sends the signal <sig> to all pids found in <oldpids>. Returns the number of
1051 * pids the signal was correctly delivered to.
1052 */
1053static int tell_old_pids(int sig)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001054{
1055 int p;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001056 int ret = 0;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001057 for (p = 0; p < nb_oldpids; p++)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001058 if (kill(oldpids[p], sig) == 0)
1059 ret++;
1060 return ret;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001061}
1062
Willy Tarreau918ff602011-07-25 16:33:49 +02001063/* Runs the polling loop */
Willy Tarreau4f60f162007-04-08 16:39:58 +02001064void run_poll_loop()
1065{
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001066 int next;
Willy Tarreau4f60f162007-04-08 16:39:58 +02001067
Willy Tarreaub0b37bc2008-06-23 14:00:57 +02001068 tv_update_date(0,1);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001069 while (1) {
Willy Tarreau29857942009-05-10 09:01:21 +02001070 /* check if we caught some signals and process them */
1071 signal_process_queue();
1072
Willy Tarreau58b458d2008-06-29 22:40:23 +02001073 /* Check if we can expire some tasks */
1074 wake_expired_tasks(&next);
1075
1076 /* Process a few tasks */
Willy Tarreaud825eef2007-05-12 22:35:00 +02001077 process_runnable_tasks(&next);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001078
Willy Tarreauaf7ad002010-08-31 15:39:26 +02001079 /* stop when there's nothing left to do */
1080 if (jobs == 0)
Willy Tarreau4f60f162007-04-08 16:39:58 +02001081 break;
1082
Willy Tarreau58b458d2008-06-29 22:40:23 +02001083 /* The poller will ensure it returns around <next> */
Willy Tarreau0c303ee2008-07-07 00:09:58 +02001084 cur_poller.poll(&cur_poller, next);
Willy Tarreau4f60f162007-04-08 16:39:58 +02001085 }
1086}
1087
Willy Tarreaue9b26022011-08-01 20:57:55 +02001088/* This is the global management task for listeners. It enables listeners waiting
1089 * for global resources when there are enough free resource, or at least once in
1090 * a while. It is designed to be called as a task.
1091 */
1092static struct task *manage_global_listener_queue(struct task *t)
1093{
1094 int next = TICK_ETERNITY;
Willy Tarreaue9b26022011-08-01 20:57:55 +02001095 /* queue is empty, nothing to do */
1096 if (LIST_ISEMPTY(&global_listener_queue))
1097 goto out;
1098
1099 /* If there are still too many concurrent connections, let's wait for
1100 * some of them to go away. We don't need to re-arm the timer because
1101 * each of them will scan the queue anyway.
1102 */
1103 if (unlikely(actconn >= global.maxconn))
1104 goto out;
1105
1106 /* We should periodically try to enable listeners waiting for a global
1107 * resource here, because it is possible, though very unlikely, that
1108 * they have been blocked by a temporary lack of global resource such
1109 * as a file descriptor or memory and that the temporary condition has
1110 * disappeared.
1111 */
Willy Tarreauabacc2c2011-09-07 14:26:33 +02001112 dequeue_all_listeners(&global_listener_queue);
Willy Tarreaue9b26022011-08-01 20:57:55 +02001113
1114 out:
1115 t->expire = next;
1116 task_queue(t);
1117 return t;
1118}
Willy Tarreau4f60f162007-04-08 16:39:58 +02001119
Willy Tarreaubaaee002006-06-26 02:48:02 +02001120int main(int argc, char **argv)
1121{
1122 int err, retry;
1123 struct rlimit limit;
1124 FILE *pidfile = NULL;
Emeric Bruncf20bf12010-10-22 16:06:11 +02001125 char errmsg[100];
Willy Tarreaubaaee002006-06-26 02:48:02 +02001126
Emeric Bruncf20bf12010-10-22 16:06:11 +02001127 init(argc, argv);
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001128 signal_register_fct(SIGQUIT, dump, SIGQUIT);
1129 signal_register_fct(SIGUSR1, sig_soft_stop, SIGUSR1);
1130 signal_register_fct(SIGHUP, sig_dump_state, SIGHUP);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001131
Willy Tarreaue437c442010-03-17 18:02:46 +01001132 /* Always catch SIGPIPE even on platforms which define MSG_NOSIGNAL.
1133 * Some recent FreeBSD setups report broken pipes, and MSG_NOSIGNAL
1134 * was defined there, so let's stay on the safe side.
Willy Tarreaubaaee002006-06-26 02:48:02 +02001135 */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001136 signal_register_fct(SIGPIPE, NULL, 0);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001137
Willy Tarreaudc23a922011-02-16 11:10:36 +01001138 /* ulimits */
1139 if (!global.rlimit_nofile)
1140 global.rlimit_nofile = global.maxsock;
1141
1142 if (global.rlimit_nofile) {
1143 limit.rlim_cur = limit.rlim_max = global.rlimit_nofile;
1144 if (setrlimit(RLIMIT_NOFILE, &limit) == -1) {
1145 Warning("[%s.main()] Cannot raise FD limit to %d.\n", argv[0], global.rlimit_nofile);
1146 }
1147 }
1148
1149 if (global.rlimit_memmax) {
1150 limit.rlim_cur = limit.rlim_max =
1151 global.rlimit_memmax * 1048576 / global.nbproc;
1152#ifdef RLIMIT_AS
1153 if (setrlimit(RLIMIT_AS, &limit) == -1) {
1154 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1155 argv[0], global.rlimit_memmax);
1156 }
1157#else
1158 if (setrlimit(RLIMIT_DATA, &limit) == -1) {
1159 Warning("[%s.main()] Cannot fix MEM limit to %d megs.\n",
1160 argv[0], global.rlimit_memmax);
1161 }
1162#endif
1163 }
1164
Willy Tarreaubaaee002006-06-26 02:48:02 +02001165 /* We will loop at most 100 times with 10 ms delay each time.
1166 * That's at most 1 second. We only send a signal to old pids
1167 * if we cannot grab at least one port.
1168 */
1169 retry = MAX_START_RETRIES;
1170 err = ERR_NONE;
1171 while (retry >= 0) {
1172 struct timeval w;
1173 err = start_proxies(retry == 0 || nb_oldpids == 0);
Willy Tarreaue13e9252007-12-20 23:05:50 +01001174 /* exit the loop on no error or fatal error */
1175 if ((err & (ERR_RETRYABLE|ERR_FATAL)) != ERR_RETRYABLE)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001176 break;
Willy Tarreaubb545b42010-08-25 12:58:59 +02001177 if (nb_oldpids == 0 || retry == 0)
Willy Tarreaubaaee002006-06-26 02:48:02 +02001178 break;
1179
1180 /* FIXME-20060514: Solaris and OpenBSD do not support shutdown() on
1181 * listening sockets. So on those platforms, it would be wiser to
1182 * simply send SIGUSR1, which will not be undoable.
1183 */
Willy Tarreaubb545b42010-08-25 12:58:59 +02001184 if (tell_old_pids(SIGTTOU) == 0) {
1185 /* no need to wait if we can't contact old pids */
1186 retry = 0;
1187 continue;
1188 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001189 /* give some time to old processes to stop listening */
1190 w.tv_sec = 0;
1191 w.tv_usec = 10*1000;
1192 select(0, NULL, NULL, NULL, &w);
1193 retry--;
1194 }
1195
1196 /* Note: start_proxies() sends an alert when it fails. */
Willy Tarreau0a3b9d92009-02-04 17:05:23 +01001197 if ((err & ~ERR_WARN) != ERR_NONE) {
Willy Tarreauf68da462009-06-09 14:36:00 +02001198 if (retry != MAX_START_RETRIES && nb_oldpids) {
1199 protocol_unbind_all(); /* cleanup everything we can */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001200 tell_old_pids(SIGTTIN);
Willy Tarreauf68da462009-06-09 14:36:00 +02001201 }
Willy Tarreaubaaee002006-06-26 02:48:02 +02001202 exit(1);
1203 }
1204
1205 if (listeners == 0) {
1206 Alert("[%s.main()] No enabled listener found (check the <listen> keywords) ! Exiting.\n", argv[0]);
1207 /* Note: we don't have to send anything to the old pids because we
1208 * never stopped them. */
1209 exit(1);
1210 }
1211
Emeric Bruncf20bf12010-10-22 16:06:11 +02001212 err = protocol_bind_all(errmsg, sizeof(errmsg));
1213 if ((err & ~ERR_WARN) != ERR_NONE) {
1214 if ((err & ERR_ALERT) || (err & ERR_WARN))
1215 Alert("[%s.main()] %s.\n", argv[0], errmsg);
1216
Willy Tarreaudd815982007-10-16 12:25:14 +02001217 Alert("[%s.main()] Some protocols failed to start their listeners! Exiting.\n", argv[0]);
1218 protocol_unbind_all(); /* cleanup everything we can */
1219 if (nb_oldpids)
1220 tell_old_pids(SIGTTIN);
1221 exit(1);
Emeric Bruncf20bf12010-10-22 16:06:11 +02001222 } else if (err & ERR_WARN) {
1223 Alert("[%s.main()] %s.\n", argv[0], errmsg);
Willy Tarreaudd815982007-10-16 12:25:14 +02001224 }
1225
Willy Tarreaubaaee002006-06-26 02:48:02 +02001226 /* prepare pause/play signals */
Willy Tarreau24f4efa2010-08-27 17:56:48 +02001227 signal_register_fct(SIGTTOU, sig_pause, SIGTTOU);
1228 signal_register_fct(SIGTTIN, sig_listen, SIGTTIN);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001229
Willy Tarreaubaaee002006-06-26 02:48:02 +02001230 /* MODE_QUIET can inhibit alerts and warnings below this line */
1231
1232 global.mode &= ~MODE_STARTING;
1233 if ((global.mode & MODE_QUIET) && !(global.mode & MODE_VERBOSE)) {
1234 /* detach from the tty */
1235 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001236 }
1237
1238 /* open log & pid files before the chroot */
1239 if (global.mode & MODE_DAEMON && global.pidfile != NULL) {
1240 int pidfd;
1241 unlink(global.pidfile);
1242 pidfd = open(global.pidfile, O_CREAT | O_WRONLY | O_TRUNC, 0644);
1243 if (pidfd < 0) {
1244 Alert("[%s.main()] Cannot create pidfile %s\n", argv[0], global.pidfile);
1245 if (nb_oldpids)
1246 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001247 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001248 exit(1);
1249 }
1250 pidfile = fdopen(pidfd, "w");
1251 }
1252
Willy Tarreaub38651a2007-03-24 17:24:39 +01001253#ifdef CONFIG_HAP_CTTPROXY
1254 if (global.last_checks & LSTCHK_CTTPROXY) {
1255 int ret;
1256
1257 ret = check_cttproxy_version();
1258 if (ret < 0) {
1259 Alert("[%s.main()] Cannot enable cttproxy.\n%s",
1260 argv[0],
1261 (ret == -1) ? " Incorrect module version.\n"
1262 : " Make sure you have enough permissions and that the module is loaded.\n");
Willy Tarreaudd815982007-10-16 12:25:14 +02001263 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001264 exit(1);
1265 }
1266 }
1267#endif
1268
1269 if ((global.last_checks & LSTCHK_NETADM) && global.uid) {
1270 Alert("[%s.main()] Some configuration options require full privileges, so global.uid cannot be changed.\n"
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001271 "", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001272 protocol_unbind_all();
Willy Tarreaub38651a2007-03-24 17:24:39 +01001273 exit(1);
1274 }
1275
Willy Tarreau4e30ed72009-02-04 18:02:48 +01001276 /* If the user is not root, we'll still let him try the configuration
1277 * but we inform him that unexpected behaviour may occur.
1278 */
1279 if ((global.last_checks & LSTCHK_NETADM) && getuid())
1280 Warning("[%s.main()] Some options which require full privileges"
1281 " might not work well.\n"
1282 "", argv[0]);
1283
Willy Tarreauf223cc02007-10-15 18:57:08 +02001284 /* chroot if needed */
1285 if (global.chroot != NULL) {
1286 if (chroot(global.chroot) == -1) {
1287 Alert("[%s.main()] Cannot chroot(%s).\n", argv[0], global.chroot);
1288 if (nb_oldpids)
1289 tell_old_pids(SIGTTIN);
Willy Tarreaudd815982007-10-16 12:25:14 +02001290 protocol_unbind_all();
Willy Tarreauf223cc02007-10-15 18:57:08 +02001291 exit(1);
1292 }
1293 chdir("/");
1294 }
1295
Willy Tarreaubaaee002006-06-26 02:48:02 +02001296 if (nb_oldpids)
Willy Tarreaubb545b42010-08-25 12:58:59 +02001297 nb_oldpids = tell_old_pids(oldpids_sig);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001298
1299 /* Note that any error at this stage will be fatal because we will not
1300 * be able to restart the old pids.
1301 */
1302
1303 /* setgid / setuid */
1304 if (global.gid && setgid(global.gid) == -1) {
1305 Alert("[%s.main()] Cannot set gid %d.\n", argv[0], global.gid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001306 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001307 exit(1);
1308 }
1309
1310 if (global.uid && setuid(global.uid) == -1) {
1311 Alert("[%s.main()] Cannot set uid %d.\n", argv[0], global.uid);
Willy Tarreaudd815982007-10-16 12:25:14 +02001312 protocol_unbind_all();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001313 exit(1);
1314 }
1315
1316 /* check ulimits */
1317 limit.rlim_cur = limit.rlim_max = 0;
1318 getrlimit(RLIMIT_NOFILE, &limit);
1319 if (limit.rlim_cur < global.maxsock) {
1320 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 +02001321 argv[0], (int)limit.rlim_cur, global.maxconn, global.maxsock, global.maxsock);
Willy Tarreaubaaee002006-06-26 02:48:02 +02001322 }
1323
1324 if (global.mode & MODE_DAEMON) {
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001325 struct proxy *px;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001326 int ret = 0;
1327 int proc;
1328
1329 /* the father launches the required number of processes */
1330 for (proc = 0; proc < global.nbproc; proc++) {
1331 ret = fork();
1332 if (ret < 0) {
1333 Alert("[%s.main()] Cannot fork.\n", argv[0]);
Willy Tarreaudd815982007-10-16 12:25:14 +02001334 protocol_unbind_all();
Willy Tarreaud6803712007-10-16 07:44:56 +02001335 exit(1); /* there has been an error */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001336 }
1337 else if (ret == 0) /* child breaks here */
1338 break;
1339 if (pidfile != NULL) {
1340 fprintf(pidfile, "%d\n", ret);
1341 fflush(pidfile);
1342 }
Willy Tarreaudcd47712007-11-04 23:35:08 +01001343 relative_pid++; /* each child will get a different one */
Willy Tarreaubaaee002006-06-26 02:48:02 +02001344 }
1345 /* close the pidfile both in children and father */
1346 if (pidfile != NULL)
1347 fclose(pidfile);
Willy Tarreaud137dd32010-08-25 12:49:05 +02001348
1349 /* We won't ever use this anymore */
1350 free(oldpids); oldpids = NULL;
1351 free(global.chroot); global.chroot = NULL;
1352 free(global.pidfile); global.pidfile = NULL;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001353
Willy Tarreau0b9c02c2009-02-04 22:05:05 +01001354 /* we might have to unbind some proxies from some processes */
1355 px = proxy;
1356 while (px != NULL) {
1357 if (px->bind_proc && px->state != PR_STSTOPPED) {
1358 if (!(px->bind_proc & (1 << proc)))
1359 stop_proxy(px);
1360 }
1361 px = px->next;
1362 }
1363
Willy Tarreaubaaee002006-06-26 02:48:02 +02001364 if (proc == global.nbproc)
1365 exit(0); /* parent must leave */
1366
1367 /* if we're NOT in QUIET mode, we should now close the 3 first FDs to ensure
1368 * that we can detach from the TTY. We MUST NOT do it in other cases since
1369 * it would have already be done, and 0-2 would have been affected to listening
1370 * sockets
1371 */
Willy Tarreau106cb762008-11-16 07:40:34 +01001372 if (!(global.mode & MODE_QUIET) || (global.mode & MODE_VERBOSE)) {
Willy Tarreaubaaee002006-06-26 02:48:02 +02001373 /* detach from the tty */
1374 fclose(stdin); fclose(stdout); fclose(stderr);
Willy Tarreau106cb762008-11-16 07:40:34 +01001375 global.mode &= ~MODE_VERBOSE;
Willy Tarreaubaaee002006-06-26 02:48:02 +02001376 global.mode |= MODE_QUIET; /* ensure that we won't say anything from now */
1377 }
1378 pid = getpid(); /* update child's pid */
1379 setsid();
Willy Tarreau2ff76222007-04-09 19:29:56 +02001380 fork_poller();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001381 }
1382
Willy Tarreaudd815982007-10-16 12:25:14 +02001383 protocol_enable_all();
Willy Tarreau4f60f162007-04-08 16:39:58 +02001384 /*
1385 * That's it : the central polling loop. Run until we stop.
1386 */
1387 run_poll_loop();
Willy Tarreaubaaee002006-06-26 02:48:02 +02001388
1389 /* Free all Hash Keys and all Hash elements */
1390 appsession_cleanup();
1391 /* Do some cleanup */
1392 deinit();
1393
1394 exit(0);
1395}
1396
1397
1398/*
1399 * Local variables:
1400 * c-indent-level: 8
1401 * c-basic-offset: 8
1402 * End:
1403 */